CN106979009B

CN106979009B - Impact device for wear-resistant sealing sheath of mining machine rack

Info

Publication number: CN106979009B
Application number: CN201710029524.7A
Authority: CN
Inventors: 刘素华
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-01-15
Filing date: 2017-01-16
Publication date: 2020-02-11
Anticipated expiration: 2037-01-16
Also published as: WO2017121407A1; CN106979009A

Abstract

The invention relates to the field of mining machinery, in particular to a wear-resistant sealing sheath impact device for a tooth frame of a mining machine. The rear part of the tooth punching rack is provided with a tooth rack wear-resistant sealing sheath, the tooth rack wear-resistant sealing sheath comprises an integral tooth rack sealing sheath or a split tooth rack sealing sheath, the split outer wear-resistant sealing sheath is arranged outside a box body protecting guide rod cover, a tooth rack sheath sealing part is arranged between the tooth rack wear-resistant sealing sheath and the box body protecting guide rod cover, the tooth rack sheath sealing part comprises a ring-closed tooth rack sheath sealing part and/or an opening tooth rack sheath sealing part, when the tooth rack wear-resistant sealing sheath is arranged outside the box body protecting guide rod cover, a wear-resistant surface in an inner cavity of the tooth rack sheath is matched and sealed with the tooth rack sheath sealing part, the distance between the front end surface of the box body protecting guide rod cover and the tooth rack wear-resistant sealing sheath towards the end surface of the box body protecting guide rod cover is larger than the reciprocating impact stroke, the device ensures the long-term cleaning.

Description

Impact device for wear-resistant sealing sheath of mining machine rack

Technical Field

The invention relates to the field of mining machinery, in particular to a wear-resistant sealing sheath impact device for a tooth frame of a mining machine.

Background

The punching rack of the reciprocating impact mining machine is arranged at the front part of the reciprocating impact guide rod, the extrusion strength between materials is continuously increased after the materials punched by the punching rack are accumulated between the reciprocating impact guide rod and the punching rack as the reciprocating impact mining machine forwards pushes the mining materials, the materials easily enter a box body sealing part between the reciprocating impact guide rod and a power box body, the box body sealing part is damaged and leaked, the power system in the power box body cannot be lubricated and cooled, the impact power system cannot normally work due to overheating locking, the box body sealing part can be damaged when the mining machine impacts the materials for several hours, the punching rack must be detached from the reciprocating impact guide rod due to the replacement of the sealing part, then the sealing part is taken out and replaced, the replacement time is long and difficult, the cleaning of the materials remained in the power box body is more difficult, the replacement of the box body sealing part for one time at least needs more than four hours and is extremely difficult to replace in a mining site, in order to avoid damage to a box body sealing element and reduce the increase of the length of a reciprocating impact guide rod due to the fact that a plurality of seals are arranged on the reciprocating impact guide rod, in order to solve the problems that the box body sealing element is easy to damage when directly contacting materials and in order to solve the problems that a sealing sleeve and a sealing element are difficult to disassemble and replace, the invention provides the impact device for the wear-resistant sealing sheath of the excavator rack.

Disclosure of Invention

The invention is realized by adopting the following technical scheme: the impact device comprises a tooth punching frame, a box body protecting and guiding rod cover, a tooth frame wear-resistant sealing sheath, an impact guiding frame, a power box body and the like, wherein the impact guiding frame is arranged in the power box body, a box body sealing piece is arranged between the impact guiding frame and the power box body, the box body protecting and guiding rod cover is fixedly connected with the power box body, the impact guiding frame comprises an impact guiding rod and the like, the end part of the impact guiding rod is arranged at the box body protecting and guiding rod cover outside the power box body, the tooth frame wear-resistant sealing sheath is arranged at the rear part of the impact tooth punching frame, the tooth frame wear-resistant sealing sheath comprises an integral tooth frame sealing sheath or a split tooth frame sealing sheath and the like, the split tooth frame sealing sheath comprises a split outer-wrapping wear-resistant sealing sheath or a split inner-built-resistant sealing sheath and the like, the split outer-wrapping wear-resistant sealing sheath is arranged outside the, the rear part of the tooth punching rack is connected with the impact guide rod, a tooth rack wear-resistant sealing sheath is arranged inside the box body guide rod cover or outside the box body guide rod cover, a tooth rack sheath sealing element is arranged between the tooth rack wear-resistant sealing sheath and the box body guide rod cover, the tooth rack sheath sealing element comprises a ring-closed tooth rack sheath sealing element and/or an opening tooth rack sheath sealing element, and the like, when the tooth rack wear-resistant sealing sheath is arranged outside the box body guide rod cover, a tooth rack sealing sheath inner cavity wear-resistant surface is arranged on the tooth rack wear-resistant sealing sheath or a tooth rack sheath sealing element groove is arranged on the tooth rack wear-resistant sealing sheath, the tooth rack sealing sheath inner cavity wear-resistant surface is matched and sealed with the tooth rack sheath sealing element, the tooth rack wear-resistant sealing sheath comprises a sealing sleeve towards the front end surface of the guide rod cover, the distance between the front end surface of the box body guide rod cover and the, or when the tooth frame wear-resistant sealing sheath is arranged inside the box body guide rod cover, a sheath wear-resistant sealing surface is arranged outside the tooth frame wear-resistant sealing sheath or a tooth frame sheath sealing piece groove is arranged on the tooth frame wear-resistant sealing sheath, a tooth frame sheath sealing piece is arranged on the tooth frame sheath sealing piece groove, the tooth frame sheath sealing piece is matched and sealed with the inner cavity of the box body guide rod cover, the tooth frame sheath sealing piece prevents material dust from entering the box body guide rod cover and prevents the material from damaging the box body sealing piece, the tooth frame wear-resistant sealing sheath is integrally or separately connected with the tooth punching frame, when the tooth frame wear-resistant sealing sheath is separately connected with the tooth punching frame, the back stopping of the tooth frame wear-resistant sealing sheath is arranged at the rear part of the tooth punching frame, or the back stopping of the tooth frame wear-resistant sealing sheath is connected with the tooth punching frame through threads, or the tooth frame wear-resistant sealing sheath and the tooth punching frame are connected with the tooth punching frame through the fixed tooth frame sealing sheath groove arranged at the joint part, or when a fixed tooth rack wear-resistant sealing sheath is fixed by using a fixed tooth rack sealing sheath groove, a guide rod tooth rack sealing sheath table is arranged at the front part of the impact guide rod, a tooth rack sealing sleeve blocking table is correspondingly arranged on the tooth rack wear-resistant sealing sheath, a tooth rack fixed sealing sheath end surface is arranged at the rear part of the tooth punching rack, a sealing sleeve matched with the tooth rack end surface is arranged on the tooth rack wear-resistant sealing sheath, the sealing sleeve matched with the tooth rack end surface is arranged on the tooth rack fixed sealing sheath end surface, a tooth rack blocking sealing sleeve dropping part is also arranged on the tooth punching rack, the tooth punching rack is fixed on the impact guide rod, the guide rod tooth rack sealing sheath table prevents the tooth rack sealing sleeve blocking table from moving towards the direction of the power box body, a tooth rack wear-resistant sealing surface matched with the tooth rack sheath sealing part is arranged on the tooth rack wear-resistant sealing sheath, and a fixed tooth rack sealing sheath groove formed by the tooth rack and the impact guide rod enables the tooth rack wear-resistant, the length of the lapping coincidence section of the tooth rack wear-resistant sealing sheath and the box body guide rod cover is larger than the impact stroke of the reciprocating impact of the tooth punching rack, and the tooth rack sheath sealing element is positioned in the lapping coincidence section of the tooth rack wear-resistant sealing sheath and the box body guide rod cover when the tooth punching rack impacts in a reciprocating mode. Or when the tooth rack wear-resistant sealing sheath retaining piece is used for retaining, the tooth rack wear-resistant sealing sheath retaining piece comprises a nut retaining piece, a screw retaining piece, a check ring retaining piece, a pin retaining piece, a bonding retaining piece, a clamping groove retaining piece, a clamp spring retaining piece, an expanding pin retaining piece, a top thread hole pin retaining piece or a key retaining piece and the like.

The gear rack sealing sleeve baffle table comprises a fixed gear rack sealing sleeve baffle table inner circular surface and the like, a fixed gear rack sealing sleeve baffle table outer circular surface is correspondingly arranged on the impact guide rod, the fixed gear rack sealing sleeve baffle table inner circular surface is matched with the fixed gear rack sealing sleeve baffle table outer circular surface to prevent the gear rack wear-resistant sealing sleeve from axially swinging left and right, or the sealing sleeve matched gear rack end surface is matched with the gear rack fixed sealing sleeve end surface to prevent the gear rack wear-resistant sealing sleeve from axially swinging left and right, or the fixed gear rack sealing sleeve baffle table inner circular surface is matched with the fixed gear rack sealing sleeve baffle table outer circular surface and the sealing sleeve matched gear rack end surface is matched with the gear rack fixed sealing sleeve end surface to prevent the gear rack wear-resistant sealing sleeve from axially swinging.

The rear part of the tooth punching frame is provided with the sheath protection parts and the like, the sheath protection parts are arranged at the rear part of the tooth punching frame at intervals, the shape of the sheath protection parts and the end face of the box body protection guide rod cover do not form a squeezing surface, materials are prevented from being accumulated between the sheath protection parts and the box body protection guide rod cover, and the sheath protection parts prevent the materials from impacting and damaging the wear-resistant sealing sheath of the tooth punching frame.

The punching rack comprises an upper punching rack, a lower punching rack and the like, the punching rack comprises a single-punching rack or a multi-punching rack and the like, the multi-punching rack comprises an upper punching rack connecting sleeve, a lower punching rack connecting sleeve, a punching rack connecting piece and the like, one end of the punching rack connecting piece is arranged on the upper punching rack connecting sleeve, the other end of the punching rack connecting piece is arranged on the lower punching rack connecting sleeve, the upper punching rack connecting sleeve and the lower punching rack connecting sleeve are connected into a whole through the punching rack connecting piece, the upper punching rack connecting sleeve and the lower punching rack connecting sleeve are respectively sleeved with the upper punching rack and the lower punching rack, the punching guide rod comprises an upper punching guide rod, a lower punching guide rod and the like, and the multi-punching rack fastens the upper punching guide rod, the lower punching guide rod and the like into a whole.

The rear part of the punching rack is provided with a rack wear-resistant sealing sheath dismounting jackscrew hole and/or the rack wear-resistant sealing sheath is provided with a dismounting screw hole and the like.

The tooth punching frame is fixedly connected with the impact guide rod through a conical surface or fixedly connected with the impact guide rod through a thread or fixedly connected with the impact guide rod through a clamping groove or fixedly connected with the impact guide rod through a tooth punching frame retaining piece or the like, or when the tooth punching frame is fixedly connected with the impact guide rod conical surface, the tooth punching frame is provided with an impact frame conical sleeve, the impact guide conical rod is arranged on the impact guide rod, the guide rod gear blocking frame sealing sheath table is arranged on the impact guide conical rod, the tooth rack gear blocking sealing sheath falling table is arranged on the tooth punching frame, the guide rod fixing sealing sheath circular surface is arranged at the front end of the guide rod gear blocking frame sealing sheath table, the guide rod fixing sealing sheath circular surface is buckled with the inner circular surface of the fixed tooth rack sealing sheath blocking table, the tooth rack wear-resistant sealing sheath axial direction is consistent with the impact guide rod axial direction, the pushing stroke section in the tooth punching frame is arranged between the guide rod gear blocking frame sealing sheath table and the tooth rack sealing sheath sliding sheath table, or the tooth rack sliding sheath falling table and the tooth rack sealing sheath sliding sheath are arranged between Set up the interior stroke section that pushes away of tooth frame between keeping off the platform, when reciprocal impact reaction force will dash the tooth frame and promote to the power box direction along strikeing the guide bar, dash tooth frame rear end to the interior stroke section space removal of pushing away of tooth frame, ensure to dash tooth frame and strike the guide taper rod awl tight, the length of the wear-resisting sealed sheath of tooth frame is greater than reciprocal stroke of strikeing and the length of the interior stroke section that pushes away of tooth frame, makes the wear-resisting sealed sheath of tooth frame and tooth frame sheath sealing member be in each other and pastes tight encapsulated situation all the time.

A pressing toothed rack sealing sleeve baffle elastic part is arranged in a pushing stroke section in the punching toothed rack, when one end of the pressing toothed rack sealing sleeve baffle elastic part is propped against the guide rod baffle toothed rack sealing sheath table and the other end is propped against the toothed rack sealing sleeve baffle table, the elastic force of the pressing toothed rack sealing sleeve baffle elastic part tightly props the toothed rack sealing baffle table against the falling-off table of the toothed rack baffle sealing sleeve or when one end of the pressing toothed rack sealing sleeve baffle elastic part is propped against the falling-off table of the toothed rack baffle sealing sleeve and the other end is propped against the toothed rack sealing sleeve baffle table, the elastic force of the pressing toothed rack sealing sleeve baffle elastic part tightly props the toothed rack sealing baffle table against the guide rod baffle toothed rack sealing sheath table, the shifting of the toothed rack sealing sleeve is prevented, the wear-resistant sealing sheath of the toothed rack is always attached and sealed with the toothed rack sealing sheath, when strong impact counter force causes the punching toothed rack to move towards the direction of the power box body, the pressing toothed rack sealing sleeve baffle elastic, the more the conical surfaces of the punching tooth frame and the impact guide rod are tapered, the tighter the conical surfaces are.

The tooth rack wear-resistant sealing sheath, the tooth rack sheath sealing element, the box body protection guide rod cover and the like form a tooth rack sheath sealing cavity between a cavity outer end sealing surface and a cavity inner end sealing surface, the power box body, the impact guide rod and the like, the impact guide frame comprises a power crankshaft, a connecting rod and the like, the power crankshaft is provided with more than two connecting rods, the more than two connecting rods are arranged around the power crankshaft in a staggered mode or in an angle of 180 degrees, the connecting rods comprise a left connecting rod, a right connecting rod and the like, the impact guide frame comprises a left impact guide frame, a right impact guide frame and the like, the left connecting rod drives the left impact guide frame to impact in a reciprocating mode, the right connecting rod drives the right impact guide frame to impact in a reciprocating mode, the impact guide rod comprises a left impact guide rod, a right impact guide rod and the like, the tooth rack comprises a left impact rack, a right impact rack and the like, the left impact rack is arranged, the left impact guide rod is arranged at the front part of the left impact guide frame, the right impact guide rod is arranged at the front part of the right impact guide frame, when the left impact guide rod retracts backwards, the right impact guide rod impacts forwards, a box body left guard guide rod cover, a box body right guard guide rod cover and the like are arranged on the power box body, the tooth frame wear-resistant sealing sheath comprises a left tooth frame sealing sheath, a right tooth frame sealing sheath and the like, the tooth frame sheath sealing element comprises a left tooth frame sheath sealing element, a right tooth frame sheath sealing element and the like, the box body sealing element comprises a left box body sealing element, a right box body sealing element and the like, the box body left guard guide rod cover, the left tooth frame sheath sealing element, the left box body sealing sheath sealing element, the left impact guide rod sealing cavity, the box body right guard guide rod cover, the right tooth frame sheath sealing sheath, the right tooth frame sheath sealing element, the right box body sealing element, the right impact guide rod and the like, a left row of pressure holes are arranged on the left box body guard bar cover between the left box body sealing element and the left tooth rack guard bar sealing element, a right row of pressure holes are arranged on the right box body guard bar cover between the right box body sealing element and the right rack guard bar sealing element to ensure that the left row of pressure holes is communicated with the right row of pressure holes, when the left impact guide rod drives the left impact rack to impact forwards, the lubricating body in the sealing cavity of the right rack sheath and the gas enter the sealing cavity of the left rack sheath through the right row of pressure holes and the left row of pressure holes, when the right impact guide rod drives the right punching tooth rack to retract backwards, the lubricating body and the gas in the sealing cavity of the right tooth rack sheath are pressed into the sealing cavity of the left tooth rack sheath through the right row of pressure holes and the left row of pressure holes, and the pressure and the suction force generated by the front-back reciprocating impact of the left punching tooth rack and the right punching tooth rack are complemented by utilizing the left row of pressure holes, the right row of pressure holes and the like, so that the damage of the pressure in the cavity to the sealing piece of the tooth rack sheath and the sealing piece of the box body is avoided.

When the tooth rack protective cover sealing piece is arranged at the outer end face of the box body protective guide rod cover, the inner cavity of the tooth rack wear-resistant sealing protective cover is provided with a tooth rack protective cover inner sealing end face which is matched and sealed with the tooth rack protective cover sealing piece, a tooth rack protective cover stop block material piece is arranged between the tooth rack protective cover inner sealing end face outside the tooth rack protective cover sealing piece and the outer end face of the box body protective guide rod cover, the tooth rack protective cover stop block material piece is used for filling the space between the tooth rack protective cover inner sealing end face and the outer end face of the box body protective guide rod cover or a protective cover collision gap is arranged between the outer end face of the tooth rack protective cover stop block material piece and the tooth rack protective cover inner sealing end face, the protective cover collision gap is smaller than or equal to the maximum compression deformation amount of the tooth rack protective cover sealing piece, and large materials are prevented.

The tooth protection rack sheath stop block material part comprises a hard sheath stop block material part or an elastic body sheath stop block material part and the like.

The wear-resisting sealed sheath of rack is equipped with the wear-resisting sealed sheath of rack and mouthful leads the charge level, and the wear-resisting sealed sheath of rack mouthful leads the material of piling up at the wear-resisting sealed sheath of rack outward mouthful to the charge level, prevents that the material from crowding into in the clearance between wear-resisting sealed sheath of rack and the box guard bar cover.

The tooth punching frame comprises a fixed wear-resistant sealing sheath and other structures, the fixed wear-resistant sealing sheath structure comprises a tooth rack fixing sheath boss or a tooth rack fixing sheath groove or a tooth rack fixing sheath end face and the like, the tooth rack wear-resistant sealing sheath further comprises an outer-packaging wear-resistant sealing sheath and the like, the outer-packaging wear-resistant sealing sheath is arranged outside a box body guide rod cover, the outer-packaging wear-resistant sealing sheath comprises a whole outer-packaging wear-resistant sealing sheath or a split outer-packaging wear-resistant sealing sheath and the like, the outer-packaging wear-resistant sealing sheath is fixed with the tooth rack fixing sheath boss in a buckling mode or fixed with the tooth rack fixing sheath groove in a buckling mode or fixed with an outer-packaging sheath piece to enable the outer-packaging wear-resistant sealing sheath to be fixed with the tooth rack fixing sheath end face in a laminating mode, the outer-packaging wear-resistant sealing sheath is provided with an outer-packaging sheath inner tube sealing piece groove, the outer The grinding sealing sheath is tightly attached and sealed with the groove end face of the tooth frame fixing sheath in a buckling mode, the rear end of the split outer-covering wear-resistant sealing sheath is provided with a sheath buckling groove anti-shaking table buckled with the groove of the tooth frame fixing sheath, the sheath buckling groove anti-shaking table is buckled in the groove of the tooth frame fixing sheath, the tooth frame fixing sheath groove tightly clasps the sheath buckling groove anti-shaking table to prevent the tooth frame wear-resistant sealing sheath from shaking, the split outer-covering wear-resistant sealing sheath comprises a left split outer-covering sealing sheath, a right split outer-covering sealing sheath and the like, the split outer-covering wear-resistant sealing sheath comprises a left split outer-covering side buckling end face and a right split outer-covering side buckling end face, a left split outer-covering side sealing piece and a right split outer-covering side buckling end face are tightly attached through two buckling faces or a left split outer-covering side buckling end face and a right split outer-covering side sealing piece are arranged between the left split outer-covering side buckling end face and the right split outer-covering side And when the left and right split sleeve rings are locked, the outer end surfaces of the left and right split outer-covering sealing sleeves and the like are locked, and the cracking of the left and right split outer-covering sealing sleeves and the like is prevented.

The wear-resisting sealed sheath of outsourcing includes fixed outsourcing sheath spare etc. and fixed outsourcing sheath spare includes nut mounting, screw mounting, round pin mounting, bonding mounting, rises round pin mounting, cylindric lock mounting, taper pin mounting, jump ring mounting, draw-in groove mounting, retaining ring mounting or jackscrew hole round pin mounting etc.. When the screw fixing piece is used, a tooth rack fixing sheath groove is arranged at the rear part of the tooth rack or a tooth rack fixing sheath boss is arranged at the rear part of the tooth rack, the tooth rack fixing sheath groove comprises a polygonal fixing sheath groove or a circular fixing sheath groove and the like, when the circular fixing sheath groove is used, the circular fixing sheath groove is arranged at the position, facing the end face of the box body, of the tooth rack by taking the axis of the impact guide rod as the center of a circle, the rear ends of the left split outer wrapping sealing sheath, the right split outer wrapping sealing sheath and the like are tightly attached and buckled in the circular fixing sheath groove, a screw fixing piece table hole is arranged on the other side face of the tooth rack opposite to the circular fixing sheath groove, sheath screw holes corresponding to the screw fixing piece table holes are arranged on the attaching end faces of the left split outer wrapping sealing sheath, the right split outer wrapping sealing sheath and the like and the circular fixing sheath groove, the screw fixing piece is screwed into the sheath screw holes to tighten the left split outer wrapping And the screw locking piece is arranged on the screw fixing piece to prevent the screw fixing piece from loosening or the screw fixing piece is screwed to prevent the screw fixing piece from loosening.

The invention has the beneficial effects that:

1. the end part of the impact guide rod is arranged at a box body guide rod protecting cover outside the power box, the rear part of the impact rack is provided with a tooth rack wear-resistant sealing sheath, the tooth rack wear-resistant sealing sheath is arranged inside the box body guide rod protecting cover or outside the box body guide rod protecting cover, a tooth rack sheath sealing piece is arranged between the tooth rack wear-resistant sealing sheath and the box body guide rod protecting cover, the wear-resistant surface of the inner cavity of the tooth rack sheath sealing piece is matched and sealed with the tooth rack sheath sealing piece, the distance between the front end surface of the box body guide rod protecting cover and the tooth rack wear-resistant sealing sheath facing the end surface of the box body guide rod protecting cover is larger than the reciprocating impact stroke, the tooth rack sheath sealing piece is matched and sealed with the inner cavity of the box body guide rod protecting cover, the tooth rack sheath sealing piece prevents material dust from entering the box body guide rod protecting cover and prevents the material from damaging the box body sealing piece, the rear part of the impact rack is provided with the tooth rack wear-resistant sealing sheath stopping piece The joint part of the rod and the punching rack is provided with a fixed rack seal jacket groove to prevent the rack wear-resistant seal jacket from falling off, or when the fixed rack wear-resistant seal jacket is fixed by using the fixed rack seal jacket groove, a seal sleeve is matched with the end surface of the rack and is arranged on the end surface of the rack fixed seal jacket, the punching rack is fixed on the impact guide rod, a guide rod gear rack seal jacket platform prevents the rack seal jacket platform from moving towards the direction of the power box body, the rack wear-resistant seal jacket is provided with a rack wear-resistant seal surface matched with a rack jacket seal piece, the fixed rack seal jacket groove formed by the punching rack and the impact guide rod enables the rack wear-resistant seal surface of the rack wear-resistant seal jacket to be always matched and sealed with the rack jacket seal piece, the length of the lapping and coinciding section of the rack wear-resistant seal jacket and the guide rod cover of the box body is larger than the impact stroke of the reciprocating impact of the punching rack, the rack jacket seal piece is positioned in the lapping and coinciding section of the rack wear, the arrangement of the tooth frame wear-resistant sealing sheath at the rear part of the tooth frame avoids the damage of a box body sealing element, simultaneously reduces the increase of a plurality of seals arranged on the reciprocating impact guide rod to the length of the reciprocating impact guide rod, avoids the adverse factors of weight and volume increase of an impact part caused by lengthening the impact guide rod, solves the problem that the box body sealing element is easily damaged when being directly contacted with materials, solves the problem that a sealing sleeve and the sealing element are difficult to disassemble and replace, solves the problem that the materials flushed by the tooth frame are easily introduced into the box body sealing element between the reciprocating impact guide rod and the power box body because the reciprocating impact mining machine forwards pushes the mining materials and then the extrusion strength between the materials is continuously increased after the materials are accumulated between the reciprocating impact guide rod and the tooth frame, leads the box body sealing element to be damaged and cannot lubricate and cool the power system in the power box body, the problem that the impact power system cannot normally work due to overheating locking is solved by arranging the tooth rack wear-resistant sealing sheath, the current situation that a box sealing piece is damaged after the mining machine impacts materials for several hours is changed, the situation that the time for frequently replacing the box sealing piece is long and the difficulty is high is avoided, long-term cleaning of a lubricating medium in the power box is ensured, and the service life of the reciprocating impact mining machine is prolonged by tens of times.

2. The inner circular surface of the fixed gear rack sealing sleeve baffle table is matched with the outer circular surface of the fixed gear rack sealing sleeve baffle table to prevent the gear rack wear-resistant sealing sleeve from axially shaking left and right, or the end surface of the sealing sleeve matched with the gear rack is matched with the end surface of the gear rack fixed sealing sheath to prevent the gear rack wear-resistant sealing sleeve from axially shaking left and right, or the inner circular surface of the fixed gear rack sealing sleeve baffle table is matched with the outer circular surface of the fixed gear rack sealing sleeve and the end surface of the sealing sleeve matched with the gear rack fixed sealing sheath to prevent the gear rack wear-resistant sealing sheath from axially shaking left and right along the impact guide rod, and the stability of the gear rack wear-resistant sealing sheath and the gear rack sheath sealing member in matched sealing.

3. The sheath protection piece is arranged at the rear part of the tooth punching frame at intervals, the shape of the sheath protection piece and the end face of the box body guide rod protection cover do not form a squeezing surface, materials are prevented from being accumulated between the sheath protection piece and the box body guide rod protection cover, and the sheath protection piece prevents the materials from impacting and damaging the wear-resistant sealing sheath of the tooth punching frame.

4. The disassembly jackscrew hole of the wear-resistant sealing sheath of the tooth rack and/or the disassembly screw hole on the wear-resistant sealing sheath of the tooth rack are favorable for disassembling the wear-resistant sealing sheath of the tooth rack from the tooth punching rack.

5. When the punching rack is fixedly connected with the conical surface of the impact guide rod, the circular surface of the guide rod fixed sealing sleeve baffle table is buckled with the inner circular surface of the fixed tooth rack sealing sleeve baffle table, the axial direction of the tooth rack wear-resistant sealing sheath is consistent with the axial direction of the impact guide rod, an inner pushing stroke section of the punching rack is arranged between the guide rod baffle tooth rack sealing sheath table and the tooth rack sealing sleeve baffle table or an inner pushing stroke section of the punching rack is arranged between the tooth rack baffle sealing sheath falling table and the tooth rack sealing sleeve baffle table, when the punching rack is pushed towards the power box body along the impact guide rod by the reciprocating impact reaction force, the rear end of the punching rack moves towards the space of the inner pushing stroke section of the punching rack, the punching rack and the impact guide conical rod are tightly pressed, the length of the tooth rack wear-resistant sealing sheath is greater than the length of the reciprocating impact stroke and the inner pushing stroke section of the tooth rack, and the tooth rack wear-resistant sealing sheath and the sealing element are always in, prevent to cause because of the wear-resisting sealed sheath stroke of rack short and can not cooperate sealed messenger's material entering rack sheath sealing member with rack sheath sealing member.

6. When one end of the elastic part of the pressing tooth frame sealing sleeve baffle table is pressed against the guide rod baffle tooth frame sealing sheath table and the other end is pressed against the tooth frame sealing sleeve baffle table, the elastic force of the elastic part of the pressing tooth frame sealing sleeve baffle table tightly presses the tooth frame sealing baffle table against the tooth frame baffle sealing sleeve falling table or when one end of the elastic part of the pressing tooth frame sealing sleeve baffle table is pressed against the tooth frame baffle sealing sleeve falling table and the other end is pressed against the tooth frame sealing sleeve baffle table, the elastic force of the elastic part of the pressing tooth frame sealing sleeve baffle table tightly presses the tooth frame sealing baffle table against the guide rod baffle tooth frame sealing sheath table, the shifting of the tooth frame sealing sleeve baffle table is prevented, and the tooth frame wear-resistant sealing sheath is always attached and sealed with the tooth frame sealing sheath sealing part, when the strong impact reaction force enables the punch tooth rack which is tightly tapered on the impact guide rod to move towards the direction of the power box body, the elastic part of the seal sleeve baffle table of the compression tooth rack contracts, and the fact that the punch tooth rack and the conical surface of the impact guide rod are more tight when the punch tooth rack and the impact guide rod are tapered is ensured. Through the use that the centering force of the elastic part of the sealing sleeve baffle table of the compression rack is larger than that of the wear-resistant sealing sheath of the centering rack and is smaller than the reciprocating impact counterforce of the punching rack, the wear-resistant sealing sheath of the rack is centered, and the punching rack and the conical surface of the impact guide rod are more tapered and more tight.

7. More than two connecting rods are arranged in a staggered manner or in an angle of 180 degrees around the power crankshaft, the left connecting rod drives the left impact guide frame to impact in a reciprocating manner, the right connecting rod drives the right impact guide frame to impact in a reciprocating manner, the left impact tooth rack is arranged on the left impact guide rod, the right impact tooth rack is arranged on the right impact guide rod, the left impact guide rod is arranged at the front part of the left impact guide frame, the right impact guide rod is arranged at the front part of the right impact guide frame, the right impact guide rod impacts forwards when the left impact guide rod retracts backwards, a left row of pressure holes are arranged on a left box body guide rod cover between the left box body sealing piece and the left tooth rack sheath sealing piece, a right row of pressure holes are arranged on a right box body guide rod cover between the right box body sealing piece and the right tooth rack sheath sealing piece, the left row of pressure holes are communicated with the right row of pressure holes, and when the left impact guide rod drives the left impact tooth rack sheath sealing piece, The gas enters the left tooth rack sheath sealing cavity through the right row of pressure holes and the left row of pressure holes, when the right impact guide rod drives the right impact tooth rack to retract backwards, the lubricating body in the right tooth rack sheath sealing cavity and the gas are pressed into the left tooth rack sheath sealing cavity through the right row of pressure holes and the left row of pressure holes, the pressure and the suction generated by the front-back reciprocating impact of the left impact tooth rack and the right impact tooth rack are complemented by utilizing the left row of pressure holes and the right row of pressure holes, and the damage of the pressure in the cavity to tooth rack sheath sealing elements and box body sealing elements is avoided.

8. The tooth rack protective sleeve material piece is arranged between the inner sealing end face of the tooth rack protective sleeve outside the tooth rack protective sleeve sealing piece and the outer end face of the box protective guide rod cover, the space between the inner sealing end face of the tooth rack protective sleeve and the outer end face of the box protective guide rod cover is filled with the tooth rack protective sleeve material piece or a protective sleeve collision gap is arranged between the outer end face of the tooth rack protective sleeve material piece and the inner sealing end face of the tooth rack protective sleeve, the protective sleeve collision gap is smaller than or equal to the maximum compression deformation amount of the tooth rack protective sleeve sealing piece, the situation that a large material enters the space between the inner sealing end face of the tooth rack protective sleeve and the outer end face of the box protective guide rod cover to damage the tooth rack protective sleeve sealing piece and the inner sealing end face of the tooth rack protective sleeve is avoided, and the tooth rack.

9. The guide surface of the outer opening of the gear rack sheath guides the materials accumulated on the outer opening of the gear rack wear-resistant sealing sheath out, so that the materials are prevented from being extruded into a gap between the gear rack wear-resistant sealing sheath and the box body guide rod cover, and the gear rack wear-resistant sealing sheath is prevented from being damaged by pushing after the materials are accumulated on the surface of the power box body to form a cushion layer.

10. The outer wear-resistant sealing sheath is arranged outside the box body guard guide rod cover, the outer wear-resistant sealing sheath is buckled and fixed with the tooth frame fixing sheath boss or the outer wear-resistant sealing sheath is buckled and fixed with the tooth frame fixing sheath groove or a fixed outer sheath component is arranged to enable the outer wear-resistant sealing sheath to be jointed and fixed with the tooth frame fixing sheath end face, the outer wear-resistant sealing sheath is arranged on the buckling end face of the outer wear-resistant sealing sheath and the tooth frame fixing sheath groove and is buckled and tightly sealed with the tooth frame component or the outer wear-resistant sealing sheath and the tooth frame fixing sheath groove end face, the sheath buckling groove anti-shaking table is buckled in the tooth frame fixing sheath groove, the tooth frame fixing sheath groove clasping sheath buckling groove anti-shaking table prevents the tooth frame wear-resistant sealing sheath from shaking, the left and right split sheath side buckling end faces are tightly sealed through two buckling faces or a left and right split sheath side buckling end face and a right split sheath side buckling end face are provided with a left and, when the right split sheath side groove is used, namely the left split sheath side boss is arranged on the left split outer-packaging sealing sheath, the right split sheath side groove is buckled with the left split sheath side boss to prevent the left split outer-packaging sealing sheath and the right split outer-packaging sealing sheath from being buckled and then cracked due to reciprocating impact reaction force and lateral force, or when the left and right split locking sheath is used, the left and right split locking sheath is arranged on the outer end faces of the left split outer-packaging sealing sheath and the right split outer-packaging sealing sheath to be locked to prevent the left split outer-packaging sealing sheath and the right split outer-packaging sealing sheath from being cracked, the split outer-packaging wear-resistant sealing sheath is arranged and matched with an opening rack sheath sealing piece, so that the problem that the tooth rack is required to be detached from a reciprocating impact guide rod due to the replacement of the rack sheath sealing piece and the rack wear-resistant sealing sheath is thoroughly solved, and then the rack sheath sealing piece and the rack wear-resistant sealing sheath are, the problem of long replacement time and high difficulty is solved, the situation that the replacement of a box body sealing element for one time needs more than four hours and the replacement is extremely difficult on a mining field is changed, the maintenance efficiency is improved, the operation is simple and convenient, and the time and the labor are saved.

11. A tooth rack fixing sheath groove is arranged at the rear part of the punching tooth rack or a tooth rack fixing sheath boss is arranged at the rear part of the punching tooth rack, a round fixing sheath groove is arranged at the end face of the punching tooth rack facing to the box body by taking the axis of the impact guide rod as the center of a circle, the rear ends of the left split outer-covering sealing sheath and the right split outer-covering sealing sheath are tightly buckled in the round fixing sheath groove, a screw fixing piece table hole is arranged on the other side face of the punching tooth rack opposite to the round fixing sheath groove, a sheath threaded hole corresponding to the screw fixing piece table hole is arranged on the joint end faces of the left split outer-covering sealing sheath and the right split outer-covering sealing sheath and the round fixing sheath groove, a screw fixing piece is screwed into the sheath threaded hole through the screw fixing piece table hole to tighten the left split outer-covering sealing sheath and the right split outer-covering sealing sheath, a screw locking piece is arranged on the screw fixing piece to, when the split outer-package wear-resistant sealing sheaths need to be cleaned, the screw fixing pieces are detached, namely the split outer-package wear-resistant sealing sheaths are cleaned, after the left split outer-package sealing sheath, the right split outer-package sealing sheath, the tooth rack sheath sealing piece and the box body sealing piece are cleaned, lubricating media are filled into the split outer-package wear-resistant sealing sheaths and then are fixed by the screw fixing pieces, the tooth rack punching maintenance is not detached, the efficiency and the cost are improved, the maintenance workload of field workers is reduced, and the service life of the reciprocating mining machine is prolonged.

Description of the drawings:

figure 1 is a structural schematic diagram of a mining machine tooth frame wear-resistant sealing sheath impact device in embodiment 1;

figure 2 is a structural schematic diagram of an impact device of a wear-resistant sealing sheath of a tooth frame of the mining machine in the embodiment 2;

figure 3 is a structural schematic diagram of an impact device of a wear-resistant sealing sheath of a tooth frame of the mining machine in the embodiment 2;

figure 4 is the structure schematic diagram of the impact device of the wear-resistant sealing sheath of the mining machine tooth frame in the embodiment 3;

figure 5 is the structure schematic diagram of the impact device of the wear-resistant sealing sheath of the mining machine tooth frame in the embodiment 3;

figure 6 is the structure schematic diagram of the impact device of the wear-resistant sealing sheath of the mining machine tooth frame in the embodiment 4;

figure 7 is a structural schematic diagram of an impact device of a wear-resistant sealing sheath of a tooth frame of the mining machine in the embodiment 5;

figure 8 is the structure schematic view of the impact device of the wear-resistant sealing sheath of the mining machine tooth frame in the embodiment 6;

figure 9 is the structure schematic diagram of the impact device of the wear-resistant sealing sheath of the tooth frame of the mining machine in the embodiment 7;

figure 10 is a partial structure schematic view of the impact device of the wear-resistant sealing sheath of the mining machine tooth frame in the embodiment 8;

figure 11 is a partial structure schematic view of the impact device of the wear-resistant sealing sheath of the mining machine tooth frame in the embodiment 9;

figure 12 is a structural schematic view of the impact device of the wear-resistant sealing sheath of the mining machine tooth frame in the embodiment 10;

figure 13 is a partial structure schematic view of the impact device of the wear-resistant sealing sheath of the mining machine tooth frame in the embodiment 11;

figure 14 is a partial structure schematic view of the impact device of the wear-resistant sealing sheath of the mining machine tooth frame in the embodiment 12;

figure 15 is a partial structure schematic view of the impact device of the wear-resistant sealing sheath of the mining machine tooth frame in the embodiment 13;

FIG. 16 is a sectional view A-A of FIG. 15;

figure 17 is a partial structure schematic view of the impact device of the wear-resistant sealing sheath of the mining machine tooth frame in the embodiment 14;

FIG. 18 is a cross-sectional view of the outer wear seal sheath of example 14;

FIG. 19 is a sectional view A-A of FIG. 18;

FIG. 20 is a schematic view showing the structure of a sheath for a wear-resistant seal according to embodiment 15;

in the figure: 1. punching a gear rack; 2. the tooth rack is provided with a wear-resistant sealing sheath; 3. the box body protects the guide rod cover; 4. an impact guide bar; 5. impacting the guide frame; 6. a power box body; 7. a box body sealing element; 8. the box body protects the front end surface of the guide rod cover; 9. a carrier jacket seal; 10. the seal sleeve faces the front end face of the guide rod cover; 11. the guide rod gear blocking frame seals the sheath table; 12. the fixed rack seals the sheath groove; 13. a gear rack seal sleeve blocking platform; 14. the gear rack block sealing sleeve stripping piece; 15. the tooth rack fixes and seals the end surface of the sheath; 16. the seal sleeve is matched with the end face of the rack; 17. the wear-resistant surface of the seal sleeve inner cavity of the gear rack; 18. a sheath wear-resistant sealing surface; 19. a box floating seal; 20. a pin backstop; 21. a carrier jacket seal groove; 22. the outer circular surface of the tooth rack abrasion-resistant sealing sheath table; 23. the fixed gear rack is sealed with the inner circular surface of the blocking platform; 24. the fixed gear rack is sealed with the outer circular surface of the baffle table; 25. a sheath guard; 26. an upper punch tooth frame connecting sleeve; 27. an upper impact guide bar; 28. a punch rack connecting piece; 29. punching a gear rack by multiple punches; 30. a lower punch rack; 31. a lower punching tooth rack connecting sleeve; 32. punching a toothed rack; 33. disassembling the screw hole; 34. a lower impact guide rod; 35. the gear rack blocks the sealing sleeve falling platform; 36. an impact frame taper sleeve; 37. the guide rod is fixedly sealed with a sealing sleeve baffle table round surface; 38. impacting the guide taper rod; 39. a stroke section is pushed in the punching rack; 40. the pressing rack is sealed with a blocking platform elastic part; 41. the left tooth rack sheath seals the cavity; 42. a left box seal; 43. a left impact guide bar; 44. a left connecting rod; 45. a left impact guide frame; 46. a power crankshaft; 47. a right impact guide frame; 48. a right connecting rod; 49. a connecting rod; 50. a right impact guide bar; 51. a right box seal; 52. the right rack sheath seals the cavity; 53. a right guard guide rod cover of the box body; 54. a right carrier jacket seal; 55. a right tooth rack sealing sheath; 56. a right punching rack; 57. a left row of pressure holes; 58. a right row of pressure holes; 59. a left punching rack; 60. a left tooth rack sealing sheath; 61. the tooth frame sheath seals the cavity; 62. a box body left guard guide rod cover; 63. a left carrier jacket seal; 64. the gear protection rack is used for protecting a baffle block material piece; 65. sealing the end face in the tooth rack sheath; 66. the material guiding surface of the outer opening of the tooth rack sheath; 67. the tooth rack fixes the sheath boss; 68. wrapping a wear-resistant sealing sheath; 69. fixing the wear-resistant sealing sheath structure; 70. fixing an outer wrapping sheath member; 71. a cylindrical pin fixing part; 72. a sealing element groove of the inner cylinder of the outer wrapping sheath; 73. the tooth rack is fixed with a sheath groove; 74. the sheath is buckled with the groove anti-shaking table; 75. the sealing surface of the inner cylinder of the outer sheath; 76. the right split body is externally coated with a sealing sheath; 77. a screw fixing member; 78. the left split body is externally wrapped with a sealing sheath; 79. the side fastening end surface of the left split sheath; 80. the side fastening end surface of the right split sheath; 81. a circular fixed sheath groove; 82. a screw fixing piece table hole; 83. a screw retaining member; 84. a sheath threaded hole; 85. sealing the outer wrapping sheath and the gear rack piece; 86. left and right jacket-side seals; 87. a right split jacket side groove; 88. a left split sheath side boss; 89. locking the left and right split protective hoop.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

Example 1

As shown in figure 1, the impact device of the wear-resistant sealing sheath 2 of the rack of the mining machine comprises a tooth punching rack 1, a box body protecting guide rod cover 3, a wear-resistant sealing sheath 2 of the rack, an impact guide rack 5, a power box body 6 and the like, wherein the impact guide rack 5 is arranged in the power box body 6, a box body sealing part 7 and the like are arranged between the impact guide rack 5 and the power box body 6, the box body protecting guide rod cover 3 is fixedly connected with the power box body 6, the impact guide rack 5 comprises an impact guide rod 4 and the like, the end part of the impact guide rod 4 is arranged at the box body protecting guide rod cover 3 outside the power box body 6, the rear part of the tooth punching rack 1 is provided with the wear-resistant sealing sheath 2 of the rack and the like, the rear part of the tooth punching rack 1 is connected with the impact guide rod 4, the wear-resistant sealing sheath 2 of the rack is arranged outside the box body protecting guide rod cover 3, the tooth rack protecting guide rod sealing part 9 of the sheath is, the tooth rack wear-resistant sealing sheath 2 is provided with a tooth rack sealing sleeve inner cavity wear-resistant surface 17 and the like, the tooth rack sealing sleeve inner cavity wear-resistant surface 17 is matched and sealed with a tooth rack sheath sealing element 9, the tooth rack wear-resistant sealing sheath 2 comprises a sealing sleeve towards the front end surface 10 of a guide rod cover and the like, the distance between the front end surface 8 of a box body protection guide rod cover and the end surface of the tooth rack wear-resistant sealing sheath 2 towards the box body protection guide rod cover 3 is larger than the reciprocating impact stroke, when the tooth rack wear-resistant sealing sheath 2 is connected with a tooth punching rack 1 in a split manner, a fixed tooth rack sealing sheath groove 12 is arranged at the joint part of an impact guide rod 4 and the tooth punching rack 1 to prevent the tooth rack wear-resistant sealing sheath 2 from falling off, when the tooth rack wear-resistant sealing sheath 2 is fixed by using the fixed tooth rack sealing sheath groove 12, a guide rod tooth rack blocking sheath sealing sheath table 11 is arranged at the front part of the impact guide rod 4, a tooth rack blocking table, the seal sleeve matched tooth rack end face 16 is arranged on the tooth rack wear-resistant seal sheath 2, the seal sleeve matched tooth rack end face 16 is arranged on the tooth rack fixed seal sheath end face 15, the tooth rack blocking seal sleeve dropping part 14 is further arranged on the tooth rack 1, the tooth rack 1 is fixed on the impact guide rod 4, the guide rod blocking tooth rack seal sheath table 11 prevents the tooth rack seal sheath table 13 from moving towards the power box body 6, the tooth rack wear-resistant seal sheath 2 is provided with a tooth rack wear-resistant seal surface matched with the tooth rack sheath seal part 9, the tooth rack 1 and the impact guide rod 4 form a fixed tooth rack seal sheath groove 12, so that the tooth rack wear-resistant seal surface of the tooth rack wear-resistant seal sheath 2 is always matched and sealed with the tooth rack sheath seal part 9, the length of the overlap joint coincidence section of the tooth rack wear-resistant seal sheath 2 and the box guide rod cover 3 is larger than the impact stroke of the tooth rack 1 in the overlapping coincidence state, the tooth rack sheath seal part 9 is positioned on the tooth rack wear-resistant seal sheath seal Within a segment.

The wear-resistant sealing sheath 2 of the tooth rack is an integral tooth rack sealing sheath, and the tooth rack sheath sealing element 9 is a ring-closed tooth rack sheath sealing element.

The wear-resistant sealing sheath 2 of the tooth rack and the tooth punching rack 1 can also be of an integrated structure.

A carrier housing seal groove 21 may also be provided on the carrier wear seal jacket 2.

Or the rear part of the tooth frame 1 can be provided with a tooth frame wear-resistant sealing sheath 2 stopping piece stopping or the tooth frame wear-resistant sealing sheath 2 and the tooth frame 1 are connected by screw threads to stop or the tooth frame wear-resistant sealing sheath 2 and the tooth frame 1 are stopped by conical surfaces and the like.

The gear rack wear-resistant sealing sheath 2 can also be a split gear rack sealing sheath which comprises a split outer-wrapping wear-resistant sealing sheath 68 or a split inner-wrapping wear-resistant sealing sheath, and the split outer-wrapping wear-resistant sealing sheath 68 is arranged outside the box body guide rod cover 3, and the split inner-wrapping wear-resistant sealing sheath is arranged on the inner side of the box body guide rod cover 3.

The carrier sheath seal 9 may also be an open carrier sheath seal.

Example 2

As shown in fig. 2 and 3, the impact device of the wear-resistant sealing sheath 2 for the rack of the mining machine comprises a rack wear-resistant sealing sheath 2 arranged inside a box body guide rod cover 3, a rack sheath sealing part 9 arranged between the rack wear-resistant sealing sheath 2 and the box body guide rod cover 3, and a sheath wear-resistant sealing surface 18 arranged outside the rack wear-resistant sealing sheath 2 and matched and sealed with the rack sheath sealing part 9 when the rack wear-resistant sealing sheath 2 is arranged inside the box body guide rod cover 3.

A tooth rack sheath sealing piece groove 21 can be formed in the tooth rack wear-resistant sealing sheath 2, a tooth rack sheath sealing piece 9 is arranged in the tooth rack sheath sealing piece groove 21, the tooth rack sheath sealing piece 9 is matched and sealed with the inner cavity of the box body guide rod protecting cover 3, and the tooth rack sheath sealing piece 9 prevents material dust from entering the box body guide rod protecting cover 3 and preventing the material from damaging the box body sealing piece 7.

The backstop piece of the gear rack wear-resistant sealing sheath 2 is a pin backstop piece 20.

The tooth rack wear-resistant sealing sheath 2 stopping piece can be a nut stopping piece, a screw stopping piece, a check ring stopping piece, a bonding stopping piece, a clamping groove stopping piece, a clamp spring stopping piece, a rising pin stopping piece, a top screw hole pin stopping piece or a key stopping piece and the like.

The rest is the same as example 1.

Example 3

As shown in fig. 4 and 5, the impact device for the wear-resistant sealing sheath 2 of the mining machine tooth frame comprises a tooth frame sealing sleeve baffle platform 13, a fixed tooth frame sealing sleeve baffle platform inner circular surface 23 and the like, a fixed tooth frame sealing sleeve baffle platform outer circular surface 24 is correspondingly arranged on the impact guide rod 4, and the fixed tooth frame sealing sleeve baffle platform inner circular surface 23 is matched with the fixed tooth frame sealing sleeve baffle platform outer circular surface 24 to prevent the tooth frame wear-resistant sealing sheath 2 from axially swinging left and right along the impact guide rod 4.

Or the inner circular surface 23 of the sealing sleeve baffle table of the fixed gear rack is matched with the outer circular surface 24 of the sealing sleeve baffle table of the fixed gear rack, and the end surface 16 of the sealing sleeve matched with the gear rack is matched with the end surface 15 of the fixed sealing sheath of the gear rack to prevent the abrasion-resistant sealing sheath 2 of the gear rack from shaking left and right along the axial direction of the impact guide rod 4.

And the seal sleeve can also be matched with the end surface 16 of the tooth rack and the end surface 15 of the fixed seal jacket of the tooth rack to prevent the abrasion-resistant seal jacket 2 of the tooth rack from shaking left and right along the axial direction of the impact guide rod 4.

The rest is the same as example 1.

Example 4

As shown in figure 6, the impact device for the wear-resistant sealing sheath 2 of the excavator rack is characterized in that the sheath protection piece 25 is arranged at the rear part of the excavator rack 1, the sheath protection piece 25 is arranged at the rear part of the excavator rack 1 at intervals, the shape of the sheath protection piece 25 and the end face of the box body guard guide rod cover 3 do not form a squeezing surface, materials are prevented from being accumulated between the sheath protection piece 25 and the box body guard guide rod cover 3, and the sheath protection piece 25 prevents the materials from impacting and damaging the wear-resistant sealing sheath 2 of the rack.

The rest is the same as example 1.

Example 5

As shown in fig. 7, the impact device for the abrasion-resistant sealing sheath 2 of the mining machine rack comprises an upper punch rack 32 and a lower punch rack 30, wherein the punch rack 1 is a multi-punch rack 29, the multi-punch rack 29 comprises an upper punch rack connecting sleeve 26, a lower punch rack connecting sleeve 31, a punch rack connecting piece 28 and the like, one end of the punch rack connecting piece 28 is arranged on the upper punch rack connecting sleeve 26, the other end of the punch rack connecting piece is arranged on the lower punch rack connecting sleeve 31, the upper punch rack connecting sleeve 26 and the lower punch rack connecting sleeve 31 are connected into a whole by the punch rack connecting piece 28, the upper punch rack connecting sleeve 26 and the lower punch rack connecting sleeve 31 are respectively sleeved with the upper punch rack 32 and the lower punch rack 30, the impact guide rod 4 comprises an upper impact guide rod 27, a lower impact guide rod 34 and the like, and the upper impact guide rod 27 and the lower impact guide rod 34 are fastened into a whole by the multi-punch rack 29.

The tooth punching frame 1 can also be a single punch tooth punching frame 1.

The rest is the same as example 1.

Example 6

As shown in fig. 8, the impact device of the wear-resistant sealing sheath 2 of the rack of the mining machine is provided with a disassembling screw hole 33 and the like on the wear-resistant sealing sheath 2 of the rack.

And a tooth rack wear-resistant sealing sheath 2 dismounting jackscrew hole and the like can be arranged at the rear part of the tooth punching rack 1.

The rest is the same as example 6.

Example 7

As shown in fig. 9, a punching rack 1 is fixedly connected with an impact guide rod 4 through a conical surface, when the punching rack 1 is fixedly connected with the impact guide rod 4 through the conical surface, an impact rack taper sleeve 36 is arranged on the punching rack 1, an impact guide taper rod 38 is arranged on the impact guide rod 4, a guide rod gear rack sealing and protecting cover table 11 is arranged on the impact guide taper rod 38, a rack gear rack sealing and protecting cover dropping table 35 is arranged on the impact rack, a guide rod fixing sealing and protecting cover blocking table round surface 37 is arranged at the front end of the guide rod gear rack sealing and protecting cover table 11, the guide rod fixing sealing and protecting cover blocking table round surface 37 is buckled with an inner round surface 23 of the fixed gear rack sealing and protecting cover table, so that the axial direction of the gear rack wear-resistant sealing and protecting cover 2 is consistent with the axial direction of the impact guide rod 4, an inner pushing stroke section 39 is arranged between the guide rod gear rack sealing and protecting cover table 11 and the rack gear rack sealing and protecting table 13, when the reciprocating impact reaction force pushes the tooth punching frame 1 to the power box body 6 along the impact guide rod 4, the rear end of the tooth punching frame 1 moves to the space of the pushing stroke section 39 in the tooth punching frame, the tooth punching frame 1 is ensured to be tightly tapered with the impact guide taper rod 38, the pushing stroke section 39 in the tooth punching frame is smaller than the reciprocating impact stroke, the length of the tooth frame wear-resistant sealing sheath 2 is larger than the length of the reciprocating impact stroke and the pushing stroke section 39 in the tooth punching frame, and the tooth frame wear-resistant sealing sheath 2 and the tooth frame sheath sealing piece 9 are always in a mutually attached sealing state.

Or the tooth punching frame 1 and the impact guide rod 4 are fixedly connected through threads, or the tooth punching frame 1 and the impact guide rod 4 are fixedly connected through a clamping groove, or the tooth punching frame 1 and the impact guide rod 4 are fixedly connected through a tooth punching frame retaining piece, and the like.

A punching rack inner pushing stroke section 39 can also be arranged between the rack sealing sleeve falling platform 35 and the rack sealing sleeve baffle platform 13.

The rest is the same as example 1.

Example 8

As shown in fig. 10, a pressing tooth rack sealing sleeve baffle elastic member 40 and the like are arranged in the punching tooth rack internal pushing stroke section 39, one end of the pressing tooth rack sealing sleeve baffle elastic member 40 is abutted against the guide rod gear rack sealing sheath table 11, and the other end of the pressing tooth rack sealing sleeve baffle elastic member 40 is abutted against the tooth rack sealing sleeve baffle table 13 to press the tooth rack sealing sleeve baffle elastic member 40 tightly, so that the tooth rack sealing sleeve baffle table 13 is abutted against the tooth rack baffle sealing sleeve dropping table 35, the shifting of the tooth rack sealing sleeve baffle table 13 is prevented, the tooth rack wear-resistant sealing sheath 2 is always attached and sealed with the tooth rack sheath sealing member 9, when the tooth rack 32 is pushed tightly on the impact guide rod 4 by strong impact reaction force to move towards the power box body 6, the pressing tooth rack sealing sleeve baffle elastic member 40 contracts, and the punching tooth rack 1 and the impact guide rod 4 are ensured to be more tight as the.

The rest is the same as example 1.

Example 9

As shown in fig. 11, a pressing rack sealing sleeve baffle elastic member 40 and the like are arranged in the punching rack internal pushing stroke section 39, one end of the pressing rack sealing sleeve baffle elastic member 40 is abutted against the rack baffle sealing sleeve dropping platform 35, the other end of the pressing rack sealing sleeve baffle elastic member 40 is abutted against the rack sealing sleeve baffle platform 13, and the elastic force of the pressing rack sealing sleeve baffle elastic member 40 is abutted against the rack sealing sleeve baffle platform 13 on the guide rod baffle rack sealing sheath platform 11, so that the shifting of the rack sealing sleeve baffle platform 13 is prevented, the rack wear-resistant sealing sheath 2 is always attached and sealed with the rack sheath sealing member 9, when the punching rack 32 is tightly pressed on the impact guide rod 4 by strong impact reaction force and moves towards the direction of the power box 6, the pressing rack baffle sealing sleeve elastic member 40 contracts, and the punching rack 1 and the impact guide rod 4 are ensured to be more tightly pressed as the conical surface is more.

The rest is the same as example 1.

Example 10

As shown in fig. 12, a tooth rack sheath sealing cavity 61 is formed between a sealing surface of an outer end of a cavity formed by a tooth rack wear-resistant sealing sheath 2, a tooth rack sheath sealing member 9, a box body sheath guide rod cover 3 and the like and a sealing surface of an inner end of a cavity formed by a box body sealing member 7, a power box body 6, an impact guide rod 4 and the like, the impact guide rack 5 comprises a power crankshaft 46, a connecting rod 49 and the like, more than two connecting rods 49 and the like are arranged on the power crankshaft 46, more than two connecting rods 49 are arranged in a staggered manner or in an angle of 180 degrees around the power crankshaft 46, the connecting rod 49 comprises a left connecting rod 44, a right connecting rod 48 and the like, the impact guide rack 5 comprises a left impact guide rack 45, a right impact guide rack 47 and the like, the left connecting rod 44 drives the left impact guide rack 45 to impact reciprocally, the right connecting rod 48 drives the right impact guide rack 47 to impact reciprocally, the impact guide rod 4 comprises a left impact guide rod, the left punching rack 59 is arranged on the left impact guide rod 43, the right punching rack 56 is arranged on the right impact guide rod 50, the left impact guide rod 43 is arranged in front of the left impact guide rack 45, the right impact guide rod 50 is arranged in front of the right impact guide rack 47, when the left impact guide rod 43 retracts backwards, the right impact guide rod 50 impacts forwards, the power box 6 is provided with a box left guard guide rod cover 62, a box right guard guide rod cover 53 and the like, the rack wear-resistant sealing sheath 2 comprises a left rack sealing sheath 60, a right rack sealing sheath 55 and the like, the rack sheath sealing element 9 comprises a left rack sheath sealing element 63, a right rack sheath sealing element 54 and the like, the box sealing element 7 comprises a left box sealing element 42, a right box sealing sheath element 51 and the like, the box left guard guide rod cover 62, the left rack sheath sealing element 63, the left box sealing element 42, the left impact guide rod 43 and the like form a left rack sheath sealing cavity 41, a right gear rack sheath sealing cavity 52 is formed by a right box body protecting guide rod cover 53, a right gear rack sealing sheath 55, a right gear rack sheath sealing element 54, a right box body sealing element 51, a right impact guide rod 50 and the like, a left row of pressure holes 57 and the like are arranged on the left box body protecting guide rod cover 3 between a left box body sealing element 42 and a left gear rack sheath sealing element 63, a right row of pressure holes 58 and the like are arranged on the right box body protecting guide rod cover 3 between a right box body sealing element 51 and a right gear rack sheath sealing element 54, so that the left row of pressure holes 57 are communicated with the right row of pressure holes 58, when the left impact guide rod 43 drives the left impact gear rack 59 to impact forwards, lubricating bodies, gas and the like in the right gear rack sheath sealing cavity 52 enter the left gear rack sheath sealing cavity 41 through the right row of pressure holes 58 and the left row of pressure holes 57, when the right impact guide rod 50 drives the right impact gear rack 56 to retract backwards, the lubricating bodies, gas and the like in the right gear rack sheath sealing cavity 52 are pressed into the left gear rack sealing sheath sealing cavity 41 through the right, the left row of pressure holes 57 and the right row of pressure holes 58 are utilized to complement the pressure and suction generated by the front-back reciprocating impact of the left punching rack 59 and the right punching rack 56, so that the damage of the pressure in the cavity to the rack sheath sealing element 9, the box body sealing element 7 and the like is avoided.

The rest is the same as example 1.

Example 11

As shown in fig. 13, the tooth frame sheath sealing element 9 is arranged on the outer end face of the box body guide rod cover 3, the inner cavity of the tooth frame wear-resistant sealing sheath 2 is provided with a tooth frame sheath inner sealing end face 65 which is matched and sealed with the tooth frame sheath sealing element 9, a tooth rack protective cover stop piece material part 64 and the like are arranged between the tooth rack protective cover inner sealing end surface 65 on the outer side of the tooth rack protective cover sealing part 9 and the outer end surface of the box body protective guide rod cover 3, the tooth rack protective cover stop piece material part 64 fills the space between the tooth rack protective cover inner sealing end surface 65 and the outer end surface of the box body protective guide rod cover 3 or a protective cover collision gap is arranged between the outer end surface of the tooth rack protective cover stop piece material part 64 and the tooth rack protective cover inner sealing end surface 65, the protective cover collision gap is smaller than or equal to the maximum compression deformation amount of the tooth rack protective cover sealing part 9, and large materials are prevented from entering the space between the tooth rack protective cover inner sealing end surface 65 and the outer end surface of the box body protective guide rod.

The wear-resisting sealed sheath of rack 2 is equipped with the wear-resisting sealed sheath of rack export material surface 66 etc. and the wear-resisting sealed sheath of rack 66 of rack exports the material of piling up at the wear-resisting sealed sheath of rack 2 outer mouthful, prevents that the material from crowding into in the clearance between wear-resisting sealed sheath of rack 2 and box guard bar cover 3.

The rest is the same as example 1.

Example 12

As shown in fig. 14, tooth punching frame 1 includes fixed wear-resisting sealed sheath structure 69 etc, fixed wear-resisting sealed sheath structure 69 includes tooth rack fixed sheath boss 67 etc, tooth rack wear-resisting sealed sheath 2 includes outsourcing wear-resisting sealed sheath 68 etc, outsourcing wear-resisting sealed sheath 68 sets up and protects the guide arm cover 3 outside at the box, outsourcing wear-resisting sealed sheath 68 includes whole outsourcing wear-resisting sealed sheath 68 etc, outsourcing wear-resisting sealed sheath 68 is fixed with tooth rack fixed sheath boss 67 lock, outsourcing wear-resisting sealed sheath 68 sets up outsourcing sheath inner tube sealing member groove 72 etc.

The outsourcing wear-resistant sealing sheath 68 comprises a fixed outsourcing sheath member 70 and the like, wherein the fixed outsourcing sheath member 70 comprises a cylindrical pin fixing member 71, and also can be a nut fixing member, a screw fixing member 77, a pin fixing member, an adhesion fixing member, an expansion pin fixing member, the cylindrical pin fixing member 71, a taper pin fixing member or a jackscrew hole pin fixing member and the like.

The rest is the same as example 1.

Example 13

As shown in fig. 15 to 16, the tooth punching rack 1 includes a fixed wear-resistant sealing sheath structure 69 and the like, the fixed wear-resistant sealing sheath structure 69 includes a tooth rack fixing sheath groove 73 and the like, the tooth rack wear-resistant sealing sheath 2 includes an outer covering wear-resistant sealing sheath 68 and the like, the outer covering wear-resistant sealing sheath 68 is disposed outside the box body guard guide rod cover 3, the outer covering wear-resistant sealing sheath 68 includes a split outer covering wear-resistant sealing sheath 68 and the like, the outer covering wear-resistant sealing sheath 68 is fastened and fixed with the tooth rack fixing sheath groove 73, the outer covering wear-resistant sealing sheath 68 is provided with an outer covering sheath inner cylinder sealing surface 75 and the like, the outer covering wear-resistant sealing sheath 68 is fastened and tightly sealed with the end surface of the tooth rack fixing sheath groove 73, the rear end of the split outer covering wear-resistant sealing sheath 68 is provided with a sheath fastening groove anti-sway platform 74 and the like, the tooth rack fixing sheath groove 73 tightly holds the sheath buckling groove anti-shaking table 74 to prevent the tooth rack wear-resisting sealing sheath 2 from shaking, the split outer-covering wear-resisting sealing sheath 68 comprises a left split outer-covering sealing sheath 78, a right split outer-covering sealing sheath 76 and the like, the split outer-covering wear-resisting sealing sheath 68 comprises a left split sheath side buckling end face 79, a right split sheath side buckling end face 80 and the like, and the left split sheath side buckling end face 79 and the right split sheath side buckling end face 80 are tightly sealed through two buckling faces.

The outsourcing wear-resisting sealed sheath 68 includes fixed outsourcing sheath spare 70 etc. and fixed outsourcing sheath spare 70 includes cylindric lock mounting 71, also can be nut mounting, screw mounting 77, round pin mounting, bonding mounting, rises round pin mounting, taper pin mounting, jump ring mounting, draw-in groove mounting, retaining ring mounting or jackscrew hole round pin mounting etc..

The rest is the same as example 1.

Example 14

As shown in fig. 17 to 19, the outer-covering wear-resistant sealing sheath 68 includes a split outer-covering wear-resistant sealing sheath 68, etc., the end surface of the outer-covering wear-resistant sealing sheath 68 engaged with the rack fixing sheath groove 73 is provided with a sealing outer-covering sheath and a rack member 85, etc., the split outer-covering wear-resistant sealing sheath 68 includes a left split outer-covering sealing sheath 78 and a right split outer-covering sealing sheath 76, etc., the split outer-covering wear-resistant sealing sheath 68 includes a left split sheath side engaging end surface 79 and a right split sheath side engaging end surface 80, etc., a left and right sheath side sealing member 86 is provided between the left split sheath side engaging end surface 79 and the right split sheath side engaging end surface 80 for sealing, etc., the right split outer-covering sealing sheath 76 includes a right split sheath side groove 87, etc., the left split outer-covering sealing sheath 78 is provided with a left split sheath side boss 88, etc., the right split sheath side groove 87 is engaged with the left split sheath side boss 88 for preventing the left split outer-covering sealing sheath And (4) cracking.

The outer-wrapping wear-resistant sealing sheath 68 comprises a fixed outer-wrapping sheath piece 70 and the like, the fixed outer-wrapping sheath piece 70 comprises a screw fixing piece 77 and the like, a tooth rack fixing sheath groove 73 is formed in the rear portion of the tooth rack 1, the tooth rack fixing sheath groove 73 comprises a circular fixing sheath groove 81 and the like, the circular fixing sheath groove 81 is formed in the position, facing the end face of the box body, of the tooth rack 1 by taking the axis of the impact guide rod 4 as the center of a circle, the rear ends of the left-split outer-wrapping sealing sheath 78 and the right-split outer-wrapping sealing sheath 76 are tightly attached and buckled in the circular fixing sheath groove 81, a screw fixing piece table hole 82 and the like are formed in the other side face, opposite to the circular fixing sheath groove 81, of the tooth rack 1, a sheath threaded hole 84 and the like corresponding to the screw fixing piece table hole 82 are formed in the attaching end faces of the left-split outer-wrapping sealing sheath 78 and the right-wrapping sealing sheath 76 and the circular fixing sheath groove 78 and a right split outer wrapping sealing sheath 76, and a screw locking piece 83 is arranged on the screw fixing piece 77 to prevent the screw fixing piece 77 from loosening.

The rack fixing sheath groove 73 may be a polygonal fixing sheath groove or the like.

The fixed sheath component 70 may also be a nut fixing component, a pin fixing component, a bonding fixing component, a rising pin fixing component, a cylindrical pin fixing component 71, a taper pin fixing component, a snap spring fixing component, a clamping groove fixing component, a retainer ring fixing component, a jackscrew hole pin fixing component, or the like.

The rest is the same as example 13.

Example 15

As shown in fig. 20, the right split outer sheath sealing sheath 76 includes a left and right locking split sheath hoop 89, and the left and right locking split sheath hoops 89 are provided on the outer end surfaces of the left and right split outer

sheath sealing sheaths

78 and 76 to lock and prevent the left and right split outer

sheath sealing sheaths

78 and 76 from being cracked.

The rest is the same as example 14.

Claims

1. The mining machine tooth frame abrasion-resistant sealing sheath impact device is characterized in that: the impact guide frame is arranged in the power box body, a box body sealing piece is arranged between the impact guide frame and the power box body, the box body protection guide rod cover is fixedly connected with the power box body, the impact guide frame comprises an impact guide rod, the end part of the impact guide rod is arranged at the box body protection guide rod cover outside the power box body, the rear part of the impact guide frame is provided with the tooth frame abrasion-resistant sealing sheath, the tooth frame abrasion-resistant sealing sheath comprises an integral tooth frame sealing sheath or a split tooth frame sealing sheath, the split tooth frame sealing sheath comprises a split outer wear-resistant sealing sheath or a split inner wear-resistant sealing sheath, the split outer wear-resistant sealing sheath is arranged outside the box body protection guide rod cover, the split inner wear-resistant sealing sheath is arranged on the inner side of the box body protection guide rod cover, the rear part of the impact guide rod is connected with the impact guide rod, the tooth frame abrasion-resistant sealing sheath is arranged inside the box body protection guide rod cover or outside the box body protection guide rod cover A tooth rack sheath sealing element is arranged between the tooth rack wear-resistant sealing sheath and the box body guide rod cover, the tooth rack sheath sealing element comprises a ring-closed tooth rack sheath sealing element and/or an open tooth rack sheath sealing element, when the tooth rack wear-resistant sealing sheath is arranged outside the box body guide rod cover, a tooth rack sheath sealing element groove is arranged on the tooth rack wear-resistant sealing sheath or the tooth rack sheath sealing element inner cavity wear-resistant surface is arranged on the tooth rack wear-resistant sealing sheath, the tooth rack sheath sealing element inner cavity wear-resistant surface is matched and sealed with the tooth rack sheath sealing element, the tooth rack wear-resistant sealing sheath comprises a sealing sleeve facing to the front end surface of the guide rod cover, the distance between the front end surface of the box body guide rod cover and the tooth rack wear-resistant sealing sheath facing to the box body guide rod cover is larger than the reciprocating impact stroke, or when the tooth rack wear-resistant sealing sheath is arranged inside the box body guide rod cover, a wear-resistant sheath sealing surface is arranged outside the tooth rack, the tooth rack sheath sealing element is arranged on the tooth rack sheath sealing element groove, the tooth rack sheath sealing element is matched and sealed with the inner cavity of the box body sheath guide rod cover, the tooth rack sheath sealing element prevents material dust from entering the box body sheath guide rod cover and prevents the material from damaging the box body sealing element, the tooth rack wear-resistant sealing sheath is connected with the tooth punching rack in an integrated or split manner, when the tooth rack wear-resistant sealing sheath is connected with the tooth punching rack in a split manner, the back part of the tooth punching rack is provided with a tooth rack wear-resistant sealing sheath stopping element stopping or the tooth rack wear-resistant sealing sheath is connected with the tooth punching rack in a threaded manner or a fixed tooth rack sealing sheath groove is arranged at the joint part of the impact guide rod and the tooth punching rack to prevent the tooth rack wear-resistant sealing sheath from falling off, or when the tooth rack wear-resistant sheath is fixed by using the fixed tooth rack sealing sheath, correspondingly, a tooth frame sealing sleeve baffle platform is arranged on a tooth frame wear-resistant sealing sheath, the rear part of a tooth punching frame is provided with a tooth frame fixed sealing sheath end surface, the tooth frame wear-resistant sealing sheath is provided with a sealing sleeve matched with the tooth frame end surface, the sealing sleeve matched with the tooth frame end surface is arranged on the tooth frame fixed sealing sheath end surface, the tooth punching frame is also provided with a tooth frame baffle sealing sleeve dropping part, the tooth punching frame is fixed on an impact guide rod, the guide rod baffle tooth frame sealing sheath platform prevents the tooth frame sealing sleeve baffle platform from moving towards a power box body, the tooth frame wear-resistant sealing sheath is provided with a tooth frame wear-resistant sealing surface matched with the tooth frame sheath sealing part, a fixed tooth frame sealing sheath groove formed by the tooth punching frame and the impact guide rod enables the tooth frame wear-resistant sealing surface of the tooth frame wear-resistant sealing sheath to be always matched and sealed with the tooth frame sheath sealing part, the overlapping section of the tooth frame wear-resistant sealing, when the punching rack impacts in a reciprocating mode, the tooth rack sheath sealing element is located in the overlapping and overlapping section of the tooth rack wear-resistant sealing sheath and the box body guide rod cover.

2. The mining machine rack wear seal sheath impact device of claim 1, wherein: the gear rack sealing sleeve blocking platform comprises an inner circular surface of a fixed gear rack sealing sleeve blocking platform, a fixed gear rack sealing sleeve blocking platform outer circular surface is correspondingly arranged on the impact guide rod, the inner circular surface of the fixed gear rack sealing sleeve blocking platform and the outer circular surface of the fixed gear rack sealing sleeve blocking platform are matched to prevent the gear rack wear-resistant sealing sleeve from axially shaking left and right, or the end surface of the sealing sleeve matched with the gear rack is matched with the end surface of the gear rack fixed sealing sleeve to prevent the gear rack wear-resistant sealing sleeve from axially shaking left and right, or the inner circular surface of the fixed gear rack sealing sleeve blocking platform is matched with the outer circular surface of the fixed gear rack sealing sleeve blocking platform, and the end surface of the sealing sleeve matched with the end surface of the gear rack.

3. The mining machine rack wear seal sheath impact device of claim 1, wherein: the rear part of the tooth punching frame is provided with the sheath protection piece, the sheath protection piece is arranged at the rear part of the tooth punching frame at intervals, the shape of the sheath protection piece and the end face of the box body protection guide rod cover do not form a squeezing surface, materials are prevented from being accumulated between the sheath protection piece and the box body protection guide rod cover, and the sheath protection piece prevents the materials from impacting and damaging the wear-resistant sealing sheath of the tooth punching frame.

4. The mining machine rack wear seal sheath impact device of claim 1, wherein: the rear part of the punching rack is provided with a rack wear-resistant sealing sheath dismounting jackscrew hole and/or the rack wear-resistant sealing sheath is provided with a dismounting screw hole.

5. The mining machine rack wear seal sheath impact device of claim 1, wherein: the tooth punching frame is fixedly connected with the impact guide rod through a conical surface or fixedly connected with the impact guide rod through a thread or fixedly connected with the impact guide rod through a clamping groove or fixedly connected with the impact guide rod through a tooth punching frame retaining piece, or when the tooth punching frame is fixedly connected with the impact guide rod through a conical surface, the tooth punching frame is provided with an impact frame taper sleeve, the impact guide rod is provided with an impact guide taper rod, the impact guide taper rod is provided with a guide rod gear blocking frame sealing sheath table, the tooth punching frame is provided with a tooth rack sealing sheath falling table, the front end of the guide rod gear blocking frame sealing sheath table is provided with a guide rod fixing sealing sheath blocking circular surface, the guide rod sealing sheath fixing blocking circular surface is buckled with the inner circular surface of the fixed tooth frame sealing sheath blocking table, the axial direction of the tooth rack wear-resistant sealing sheath is consistent with the axial direction of the impact guide rod, a pushing stroke section in the tooth punching frame is arranged between the guide rod gear blocking frame sealing sheath table and the tooth rack sealing sheath blocking sleeve blocking table, or the tooth rack sealing sheath falling table and the tooth rack sealing sheath blocking sleeve The push stroke section in the tooth punching frame is arranged between the platforms, when the reciprocating impact reaction force pushes the tooth punching frame to the direction of the power box body along the impact guide rod, the space of the push stroke section in the tooth punching frame is moved at the rear end of the tooth punching frame, the tooth punching frame and the impact guide taper rod are ensured to be tapered tightly, the length of the wear-resistant sealing sheath of the tooth punching frame is greater than the length of the reciprocating impact stroke and the push stroke section in the tooth punching frame, and the wear-resistant sealing sheath of the tooth punching frame and the sealing piece of the sheath of the tooth punching frame are always in a mutually-attached sealing state.

6. The mining machine rack wear seal sheath impact device of claim 5, wherein: a pressing toothed rack sealing sleeve baffle elastic part is arranged in a pushing stroke section in the punching toothed rack, when one end of the pressing toothed rack sealing sleeve baffle elastic part is propped against the guide rod baffle toothed rack sealing sheath table and the other end is propped against the toothed rack sealing sleeve baffle table, the elastic force of the pressing toothed rack sealing sleeve baffle elastic part tightly props the toothed rack sealing baffle table against the falling-off table of the toothed rack baffle sealing sleeve or when one end of the pressing toothed rack sealing sleeve baffle elastic part is propped against the falling-off table of the toothed rack baffle sealing sleeve and the other end is propped against the toothed rack sealing sleeve baffle table, the elastic force of the pressing toothed rack sealing sleeve baffle elastic part tightly props the toothed rack sealing baffle table against the guide rod baffle toothed rack sealing sheath table, the shifting of the toothed rack sealing sleeve is prevented, the wear-resistant sealing sheath of the toothed rack is always attached and sealed with the toothed rack sealing sheath, when strong impact counter force causes the punching toothed rack to move towards the direction of the power box body, the pressing toothed rack sealing sleeve baffle elastic, the more the conical surfaces of the punching tooth frame and the impact guide rod are tapered, the tighter the conical surfaces are.

7. The mining machine rack wear seal sheath impact device of claim 1, wherein: the tooth rack protective sleeve sealing device comprises a tooth rack wear-resistant sealing protective sleeve, a tooth rack protective sleeve sealing piece, a box body protective guide rod cover, a tooth rack protective sleeve sealing cavity formed between a cavity outer end sealing surface and a cavity inner end sealing surface, wherein the cavity inner end sealing surface is formed by the tooth rack protective sleeve sealing piece and the box body sealing piece, and the cavity body is formed by the power box body and an impact guide rod, the impact guide frame comprises a power crankshaft and a connecting rod, more than two connecting rods are arranged on the power crankshaft, the more than two connecting rods are arranged around the power crankshaft in a staggered mode or in a 180-degree mode, the connecting rod comprises a left connecting rod and a right connecting rod, the impact guide frame comprises a left impact guide frame and a right impact guide frame, the left connecting rod drives the left impact guide frame to impact in a reciprocating mode, the right connecting rod drives the right impact guide frame to impact in a reciprocating mode, the impact, the left impact guide rod is arranged at the front part of the left impact guide frame, the right impact guide rod is arranged at the front part of the right impact guide frame, when the left impact guide rod retracts backwards, the right impact guide rod impacts forwards, the power box body is provided with a box body left guide rod protecting cover and a box body right guide rod protecting cover, the tooth frame wear-resistant sealing sheath comprises a left tooth frame sealing sheath and a right tooth frame sealing sheath, the tooth frame sheath sealing element comprises a left tooth frame sheath sealing element and a right tooth frame sheath sealing element, the box body sealing element comprises a left box body sealing element and a right box body sealing element, the box body left guide rod protecting cover, the left tooth frame sheath sealing element, the left box body sealing element and the left impact guide rod form a left tooth frame sheath sealing cavity, the box body right guide rod protecting cover, the right tooth frame sheath sealing element, the right box body sealing element and the right impact guide rod form a right tooth frame sheath sealing cavity, a left row of pressure holes are arranged on the left box body guard bar cover between the left box body sealing element and the left tooth rack guard bar sealing element, a right row of pressure holes are arranged on the right box body guard bar cover between the right box body sealing element and the right rack guard bar sealing element to ensure that the left row of pressure holes is communicated with the right row of pressure holes, when the left impact guide rod drives the left impact rack to impact forwards, the lubricating body in the sealing cavity of the right rack sheath and the gas enter the sealing cavity of the left rack sheath through the right row of pressure holes and the left row of pressure holes, when the right impact guide rod drives the right punching tooth rack to retract backwards, the lubricating body and the gas in the sealing cavity of the right tooth rack sheath are pressed into the sealing cavity of the left tooth rack sheath through the right row of pressure holes and the left row of pressure holes, and the pressure and the suction force generated by the front-back reciprocating impact of the left punching tooth rack and the right punching tooth rack are complemented by the left row of pressure holes and the right row of pressure holes, so that the damage of the pressure in the cavity to the sealing piece of the tooth rack sheath and the sealing piece of the box body is avoided.

8. The mining machine rack wear seal sheath impact device of claim 1, wherein: the tooth rack protective cover sealing piece is arranged on the outer end face of the box body protective guide rod cover, the inner cavity of the tooth rack wear-resistant sealing protective cover is provided with a tooth rack protective cover inner sealing end face which is sealed in a matched mode with the tooth rack protective cover sealing piece, a tooth rack protective cover stop block material piece is arranged between the tooth rack protective cover inner sealing end face on the outer side of the tooth rack protective cover sealing piece and the outer end face of the box body protective guide rod cover, the tooth rack protective cover stop block material piece is used for filling the space between the tooth rack protective cover inner sealing end face and the outer end face of the box body protective guide rod cover or a protective cover collision gap is arranged between the outer end face of the tooth rack protective cover stop block material piece and the tooth rack protective cover inner sealing end face, the protective cover collision gap is smaller than or equal to the maximum compression deformation amount of the tooth rack protective cover sealing piece.

9. The mining machine rack wear seal sheath impact device of claim 8, wherein: the tooth protection rack sheath stop block material piece comprises a hard sheath stop block material piece or an elastic body sheath stop block material piece.

10. The mining machine rack wear seal sheath impact device of claim 1, wherein: the wear-resisting sealed sheath of rack is equipped with the wear-resisting sealed sheath of rack and mouthful leads the charge level, and the wear-resisting sealed sheath of rack mouthful leads the material of piling up at the wear-resisting sealed sheath of rack outward mouthful to the charge level, prevents that the material from crowding into in the clearance between wear-resisting sealed sheath of rack and the box guard bar cover.

11. The mining machine rack wear seal sheath impact device of claim 1, wherein: the tooth punching frame comprises a fixed wear-resistant sealing sheath structure, the fixed wear-resistant sealing sheath structure comprises a tooth frame fixing sheath boss or a tooth frame fixing sheath groove or a tooth frame fixing sheath end face, the tooth frame wear-resistant sealing sheath further comprises an outer wear-resistant sealing sheath, the outer wear-resistant sealing sheath is arranged outside the box body guide rod cover, the outer wear-resistant sealing sheath comprises an integral outer wear-resistant sealing sheath or a split outer wear-resistant sealing sheath, the outer wear-resistant sealing sheath is fixed with the tooth frame fixing sheath boss in a buckling mode or fixed with the tooth frame fixing sheath groove in a buckling mode or fixed with an outer packaging sheath component to enable the outer wear-resistant sealing sheath to be fixed with the tooth frame fixing sheath end face in a laminating mode, the outer wear-resistant sealing sheath is provided with an outer packaging sheath inner tube sealing component groove, the outer packaging wear-resistant sealing sheath is provided with the outer packaging sheath and the tooth frame component or the outer wear-resistant sealing sheath in The sleeve is buckled and tightly sealed with the groove end face of the rack fixing sheath, the rear end of the split outer-covering wear-resistant sealing sheath is provided with a sheath buckling groove anti-shaking table buckled with the groove of the rack fixing sheath, the sheath buckling groove anti-shaking table is buckled in the groove of the rack fixing sheath, the groove buckling groove anti-shaking table of the rack fixing sheath is clasped with the sheath buckling groove of the rack fixing sheath to prevent the rack wear-resistant sealing sheath from shaking, the split outer-covering wear-resistant sealing sheath comprises a left split outer-covering sealing sheath and a right split outer-covering sealing sheath, the split outer-covering wear-resistant sealing sheath comprises a left split sheath side buckling end face and a right split sheath side buckling end face, a left and right split sheath side sealing piece is arranged between the left split sheath side buckling end face and the right split sheath side buckling end face through two buckling faces or between the left split sheath side buckling end face and the right split sheath side buckling end face, the right split outer-covering sealing sheath comprises a right split sheath side groove or comprises a right split sheath, when the right split sheath side groove is used, namely the left split sheath side boss is arranged on the left split outer-covering sealing sheath, the right split sheath side groove is buckled with the left split sheath side boss to prevent the left split outer-covering sealing sheath and the right split outer-covering sealing sheath from being broken due to reciprocating impact reaction force and lateral force after being buckled, or when the left and right split locking sheath hoop is used, the left and right split locking sheath hoop is arranged on the outer end face of the front part of the left split outer-covering sealing sheath and the right split outer-covering sealing sheath to be locked, and the left split outer-covering sealing sheath and the right split outer-covering sealing sheath are prevented from being broken.

12. The mining machine rack wear seal sheath impact device of claim 11, wherein: the outer wear-resistant sealing sheath comprises a fixed outer sheath component which comprises a nut fixing component, a screw fixing component, a pin fixing component, an adhesion fixing component, a rising pin fixing component, a cylindrical pin fixing component, a taper pin fixing component, a clamp spring fixing component, a clamping groove fixing component, a retainer ring fixing component or a jackscrew hole pin fixing component, when the screw fixing component is used, a tooth rack fixing sheath groove is arranged at the rear part of the tooth rack or a tooth rack fixing sheath boss is arranged at the rear part of the tooth rack, the tooth rack fixing sheath groove comprises a polygonal fixing sheath groove or a circular fixing sheath groove, when the circular fixing sheath groove is used, a circular fixing sheath groove is arranged at the position of the tooth rack facing the end face of the box body and taking the axis of the impact guide rod as the center of a circle, the rear ends of the left-split outer sheath sealing sheath and the right-split outer sheath sealing sheath are tightly stuck and fastened in the circular fixing sheath groove, and a screw boss hole is arranged, and sheath threaded holes corresponding to the screw fixing piece table holes are formed in the attaching end faces of the left split outer-covering sealing sheath, the right split outer-covering sealing sheath and the circular fixing sheath groove, the screw fixing pieces penetrate through the screw fixing piece table holes and are screwed into the sheath threaded holes to tighten the left split outer-covering sealing sheath and the right split outer-covering sealing sheath, and screw locking pieces are arranged on the screw fixing pieces to prevent the screw fixing pieces from loosening or screw the screw fixing pieces to prevent the screw fixing pieces from loosening.