CN109024729B

CN109024729B - Land leveling cutter for land leveler

Info

Publication number: CN109024729B
Application number: CN201810792583.4A
Authority: CN
Inventors: 于玮
Original assignee: Shandong Shantui Triumphal Construction Machinery Co ltd
Current assignee: SHANDONG SHANTUI TRIUMPHAL CONSTRUCTION MACHINERY Co.,Ltd.
Priority date: 2018-07-18
Filing date: 2018-07-18
Publication date: 2021-06-08
Anticipated expiration: 2038-07-18
Also published as: CN109024729A

Abstract

The invention relates to the field of building construction, in particular to a land leveling cutter for a land leveler, which comprises a top seat, a base and a cutter body, wherein a rectangular groove is formed in the lower surface of the base, the middle section of the cutter body is coupled in the rectangular groove, a group of transmission mechanisms are respectively arranged outside the left side and the right side of the base, the two groups of transmission mechanisms are used for driving the front end and the rear end of the cutter body to alternately rise, a stroke assembly used for driving the two groups of transmission mechanisms to synchronously work is arranged at the upper part of the top seat, a locking assembly is respectively arranged at the left side and the right side of the base, the two locking assemblies are respectively used for stopping and limiting the group of transmission mechanisms, and a soil isolating assembly is arranged in the groove bottom of the rectangular groove, and the front end and the rear end of the flat cutter can be flexibly and quickly switched, so that the problem that one end of the flat cutter is abraded too fast due to long-time contact with the ground is solved.

Description

Land leveling cutter for land leveler

Technical Field

The invention relates to the field of building construction, in particular to a land leveling cutter for a land leveler.

Background

The land leveller is a main machine used for shaping and leveling operation in the earth engineering, is widely used for large-area ground leveling operation of roads, airports and the like, and the existing land leveller mainly comprises a land leveling cutter used for contacting with the ground and a vehicle body capable of running, wherein the land leveling cutter is arranged at the bottom of the vehicle body in a horizontal and inclined state, the land leveling cutter is generally of an arc-shaped structure, so that the structure is simple, in the actual work, the resistance is larger in the contact between the bottom of the land scraper and the ground, the self-influence on the flat cutter is larger, the bottom of the flat cutter can be damaged over time, and the contact end of the flat cutter is always kept in pressing contact with the ground for a long time, therefore, the flat ground cutter needs to be replaced manually, and the operation is very troublesome in replacement work, which wastes manpower.

Disclosure of Invention

The invention aims to provide a land leveling cutter for a land leveling machine, which can flexibly and quickly switch the front end and the rear end of the land leveling cutter, aiming at overcoming the defects of the prior art.

In order to solve the above problems, the present invention provides the following technical solutions: the flat land cutter for the land leveler comprises a top seat, a base and a cutter body, wherein a rectangular groove is formed in the lower surface of the base, the middle section of the cutter body is connected in the rectangular groove in a shaft mode, a group of transmission mechanisms are respectively arranged outside the left side and the right side of the base, the two groups of transmission mechanisms are both used for driving the front end and the rear end of the cutter body to rise alternately, a stroke assembly used for driving the two groups of transmission mechanisms to work synchronously is arranged on the upper portion of the top seat, a locking assembly is respectively arranged on the left side and the right side of the base, the two locking assemblies are respectively used for stopping and limiting the group of transmission mechanisms, a soil isolation assembly is arranged in the bottom of the rectangular groove, and the upper;

the two groups of transmission mechanisms are identical in structure, each transmission mechanism comprises a plurality of first gears which are sequentially arranged along the vertical height of the base, all the first gears are in shaft connection with the outer side surface of the base, all the first gears are sequentially meshed along the respective arrangement sequence, the movable shaft is horizontally arranged, two ends of the movable shaft respectively penetrate through the left side and the right side of the base, and the two ends of the movable shaft are respectively and fixedly connected with one first gear on the two sides of the base in a coaxial mode;

the stroke assembly comprises a hydraulic cylinder, a rotating shaft and two rack plates, wherein two bearing seats are symmetrically arranged in an opening of the top seat, the rotating shaft is hinged in the opening of the top seat through the two bearing seats, two ends of the rotating shaft respectively extend towards the outside of the top seat, and are respectively sleeved with a second gear which is respectively meshed with a first gear outside two sides of the base, two third gears are further symmetrically sleeved on the rotating shaft and are respectively positioned in the opening of the top seat, the two rack plates are vertically positioned in the opening of the top seat and penetrate through the bottom wall in the opening of the top seat, the two rack plates are respectively meshed with the third gear, a top plate for sealing the opening surface of the top seat is arranged outside the opening of the top seat, the hydraulic cylinder is arranged on the top plate in an inverted manner, an output rod of the hydraulic cylinder penetrates through the top plate and is fixedly connected with the two rack plates through a linkage plate, the linkage plate is driven by the hydraulic cylinder, so that the two rack plates can vertically move in the opening of the top seat.

Further, the base is of a long strip-shaped structure, the base is fixedly installed on the lower surface of the top seat in a vertical posture, the top seat is close to the V-shaped structure, the opening face of the top seat faces upwards all the time, two opposite sides of the top seat are of bending structures, the two sides of the top seat are arranged in opposite directions, and two opposite sides of the top seat and the front end and the rear end of the cutter body respectively form a bulldozing opening.

Has the advantages that: the land leveling cutter with the quick switching function for the land leveling machine, provided by the invention, can reduce the frictional resistance between the land leveling cutter and the ground during working, and the front end and the rear end of the land leveling cutter can be flexibly and quickly switched, so that the problem of over-quick abrasion caused by long-time contact between one end of the land leveling cutter and the ground is solved.

Drawings

FIG. 1 is a schematic plan view of the present invention in an operating state;

FIG. 2 is a schematic perspective view of the present invention in an operating state;

FIG. 3 is a first perspective cross-sectional view of the present invention;

FIG. 4 is an enlarged view taken at A in FIG. 3;

FIG. 5 is a first partial assembly structure of the present invention;

FIG. 6 is a second schematic view of a partial assembly structure of the present invention;

FIG. 7 is a second perspective sectional view of the present invention;

FIG. 8 is an enlarged view at B of FIG. 7;

FIG. 9 is a perspective view of the tool body of the present invention;

FIG. 10 is an enlarged view at C of FIG. 9;

description of reference numerals: a top seat 1 and a bulldozer opening 1 a.

The hydraulic cylinder comprises a stroke assembly 2, a hydraulic cylinder 2a, a second gear 2b, a third gear 2c, a rack plate 2d and a linkage plate 2 e.

Base 3, rectangular channel 3 a.

The first gear 4a, the annular groove 4b,

the soil separating bin 5, the abutting plate 5a, the extrusion inclined plane 5b, the air rod 5c, the ball head 5d, the check ring 5e and the unlocking spring 5 q.

A soil separation plate 6, a pressing spring 6a, a circular arc contact surface 6b,

the cutting tool comprises a cutting tool body 7, a friction inclined surface 7a, a concave surface 7b, a convex plate 7c, a notch 7d, a reset box 7q, a block body 7k and a walking roller 7 y.

Detailed Description

The following detailed description of specific embodiments of the present invention is made with reference to the accompanying drawings and examples:

referring to fig. 1 to 10, the land leveling tool for a land leveler comprises a top seat 1, a base 3 and a tool body 7, wherein a rectangular groove 3a is formed in the lower surface of the base 3, a middle section of the tool body 7 is connected in the rectangular groove 3a in a shaft mode, a group of transmission mechanisms are respectively arranged outside the left side and the right side of the base 3, the two groups of transmission mechanisms are used for driving the front end and the rear end of the tool body 7 to ascend alternately, a stroke component 2 used for driving the two groups of transmission mechanisms to work synchronously is arranged on the upper portion of the top seat 1, a locking component is further respectively arranged on the left side and the right side of the base 3, the two locking components are respectively used for stopping and limiting the group of transmission mechanisms, a soil separation component is arranged in the groove bottom of the rectangular groove 3a, and the.

The lower surface of the cutter body 7 is of a rectangular structure, the front end and the rear end of the cutter body 7 are respectively provided with an upward inclined convex plate 7c, the lower surfaces of the front end and the rear end of the cutter body 7 are respectively provided with a friction inclined plane 7a capable of contacting with the ground, the lower surface of the cutter body 7 is symmetrically provided with two concave surfaces 7b, the two concave surfaces 7b are respectively close to the friction inclined plane 7a, and the middle section of the cutter body 7 is hinged in the rectangular groove 3a through a movable shaft; when any one end of the front end and the rear end of the cutter body 7 is descended to be in contact with the ground, the raised plate 7c and the friction inclined plane 7a depending on the position form complete plane contact with the ground, the concave surface 7b beside the friction inclined plane 7a and the other concave surface 7b form a soil pushing space for maximally accommodating a large amount of soil generated by pushing in the flat ground, the rotation of the movable shaft forces the front end and the rear end of the cutter body 7 to be freely switched, namely, if the front end of the cutter body 7 is adopted after the front movement of the grader, the grader retreats from the flat ground in the working process, the rear end of the cutter body 7 is adopted, so that the whole grader does not need to be turned around, the time is saved, and more importantly, the two ends of the cutter body 7 can be circularly switched, and the loss caused by the working is reduced.

The base 3 is of a long strip-shaped structure, the base 3 is fixedly installed on the lower surface of the top seat 1 in a vertical posture, the top seat 1 is close to a V-shaped structure, the opening surface of the top seat is always upward, two opposite sides of the top seat 1 are both of a bending structure, the bending directions of the two sides are oppositely arranged, and two opposite sides of the top seat 1 and the front end and the rear end of the cutter body 7 respectively form an open bulldozing 1 a; because the one end of cutter body 7 and ground contact friction move in, can produce a large amount of earth, the other end of cutter body 7 is for tilting up this moment, constitutes the space that holds these earth like this, but because the angle of slope is not high enough, so the space is less, treats under the too much circumstances of earth, can directly pile up and fall into in the uncovered 1a of bulldozing.

The two groups of transmission mechanisms are identical in structure, each transmission mechanism comprises a plurality of first gears 4a which are sequentially arranged along the vertical height of the base 3, all the first gears 4a are connected with the outer side surface of the base 3 in a shaft mode, all the first gears 4a are sequentially meshed along the respective arrangement sequence, the movable shaft is horizontally arranged, two ends of the movable shaft respectively penetrate through the left side and the right side of the base 3, and the two ends of the movable shaft are respectively and fixedly connected with one first gear 4a on the two sides of the base 3 in a coaxial mode; after all first gears 4a in two sets of drive mechanism receive stroke subassembly 2's drive power to rotate, two first gears 4a that are close to the base 3 lower part can be synchronous with the loose axle area and rotate, realize the effect that rises to the alternating at the front and back both ends of cutter body 7 promptly, make the leveler can follow and break down and carry out reciprocal level land, need not to turn around the leveler like this.

The stroke component 2 comprises a hydraulic cylinder 2a, a rotating shaft and two rack plates 2d, two bearing seats are symmetrically arranged in an opening of the top seat 1, the rotating shaft is hinged in the opening of the top seat 1 through the two bearing seats, two ends of the rotating shaft respectively extend towards the outside of the top seat 1, and are respectively sleeved with a second gear 2b, the two second gears 2b are respectively meshed with a first gear 4a outside two sides of the base 3, two third gears 2c are also symmetrically sleeved on the rotating shaft, the two third gears 2c are respectively positioned in the opening of the top seat 1, the two rack plates 2d are vertically positioned in the opening of the top seat 1 and also penetrate through the bottom wall in the opening of the top seat 1, the two rack plates 2d are respectively meshed with the third gear 2c, a top plate for sealing the opening surface of the top seat 1 is arranged outside the opening, the hydraulic cylinder 2a is inversely arranged on the top plate, an output rod of the hydraulic cylinder 2a penetrates through the top plate and is fixedly connected with the two rack plates 2d through a linkage plate 2e, and the linkage plate 2e is driven by the hydraulic cylinder 2a to enable the two rack plates 2d to vertically move in the opening of the top base 1; when the front end and the rear end of the cutter body 7 need to be switched, the output end of the hydraulic cylinder 2a stretches out and draws back, the two rack plates 2d are forced to vertically move in the opening of the top seat 1 through the linkage plate 2e, so that the rack plates and the third gears 2c are respectively meshed with the positions of the rack plates, the rotating shaft is indirectly forced to rotate, in the rotation, the second gears 2b are meshed with the first gears 4a corresponding to the second gears, the first gears 4a are sequentially meshed with the other first gears 4a below, the first gears 4a closest to the lower portion of the base 3 are forced to rotate, finally, the alternating lifting of the front end and the rear end of the cutter body 7 is completed through the rotation of the movable shaft, and the purpose of switching the front end and the rear end of the cutter body 7.

The soil isolation assembly comprises a soil isolation plate 6 and a plurality of extrusion springs 6a, the bottom of the rectangular groove 3a is provided with an opening, the soil isolation plate 6 can be vertically and movably inserted into the opening through the extrusion springs 6a, and one end of the soil isolation plate 6, which is far away from the extrusion springs 6a, is provided with an arc contact surface 6 b; carry out the in-process that the alternating rised at both ends around cutter body 7, the upper surface in its middle section keeps hugging closely with circular arc contact surface 6b all the time, make the back of arbitrary one end and ground contact in the both ends around cutter body 7 like this, the middle part of cutter body 7 also can form the separation with soil isolation plate 6, make the earth of the cutter body 7 other end can not leak to the one end region of cutter body 7 with the ground contact through rectangular channel 3a like this, the setting of extrusion spring 6a makes the transfer of cutter body 7 can free rotation, can not take place the dead problem of card with soil isolation plate 6.

The two locking assemblies have the same structure, each locking assembly comprises a soil separation bin 5, a collision plate 5a, a gas rod 5c and a plurality of check rings 5e, the two soil separation bins 5 respectively cover all first gears 4a outside two sides of the base 3, the collision plates 5a can be horizontally and movably arranged in the soil separation bins 5, all the check rings 5e are respectively arranged on the collision plates 5a at respective positions and are also positioned at the front sides of all the first gears 4a of the collision plates 5a facing the positions, all the check rings 5e are respectively opposite to one first gear 4a, the outer side surface of each first gear 4a is provided with an annular groove 4b for the check ring 5e at respective positions to be inserted, the back side of each collision plate 5a is elastically connected with the inner side of the soil separation bin 5 through a plurality of unlocking springs 5q, the gas rod 5c is inversely arranged above the soil separation bins 5, and an output rod of the gas rod 5c penetrates into the soil separation bins 5, a bulb 5d is welded on an output rod of the device, and an extrusion inclined plane 5b which can be matched with the bulb 5d is arranged on the back side of the upper end of the abutting plate 5 a; after the tool body 7 is raised alternately, the air rod 5c works, and the ball 5d contacts the pressing inclined surface 5b to force the contact plate 5a to move towards all the first gears 4a at the position, that is, all the check rings 5e at the front side are inserted into the annular grooves 4b of the first gears 4a at the respective positions in a one-to-one manner, so that the first gears 4a are forced to be closely limited and can not rotate, when the air rod 5c retracts to work, the ball head 5d is reset, and the ball head can be unlocked by the acting force of the unlocking spring 5q, so that the abutment plates 5a are pulled back, so that the non-return rings 5e are drawn out of the respective annular grooves 4b, unlocking is effected, in the stopping limit of the first gear 4a, any end of the cutter body 7 is in friction contact with the ground, this contact friction force does not cause instability of the first gear 4a, which further increases the overall stability.

A notch 7d is formed in each of the two protruding plates 7c, the notch 7d penetrates through the protruding plates 7c, a reset box 7q is mounted on each of two opposite sides in each notch 7d, a block 7k capable of moving vertically is arranged in each reset box 7q, each block 7k is elastically connected with the top wall in each reset box 7q through a compression spring, and a walking roller 7y is connected between the two blocks 7k in a shaft mode; after the convex plate 7c and the friction inclined surface 7a are contacted with the ground, the walking roller 7y corresponding to the convex plate 7c and the friction inclined surface 7a synchronously extrudes the ground, and the walking roller ascends a little in the notch 7d through the retraction spring, so that certain friction resistance is reduced through the rotation of the walking roller 7y in the friction movement of the convex plate 7c and the friction inclined surface 7a and the ground, and the pressing finishing effect on the ground is also increased.

The working principle is as follows: the invention is arranged below a land leveler, before the land leveler moves on the ground, the output end of a hydraulic cylinder 2a firstly extends and retracts, two rack plates 2d are forced to vertically move in an opening of a top seat 1 through a linkage plate 2e, so that the two rack plates are respectively meshed with third gears 2c at respective positions, an indirect rotating shaft is forced to rotate, in the rotation process, a second gear 2b is meshed with a first gear 4a corresponding to the second gear, the first gear 4a is sequentially meshed with other first gears 4a below, the first gear 4a closest to the lower part of a base 3 is forced to rotate, finally, the front end and the rear end of a cutter body 7 are alternately lifted through the rotation of a movable shaft, a convex plate 7c and a friction inclined surface 7a at the front end position of the cutter body 7 are contacted with the ground, at the moment, the two are in complete horizontal contact with the ground, in the contact process, the outer surfaces of walking rollers 7y corresponding to the convex plate 7c and the friction inclined surface 7a are also contacted with, due to the contact force, the walking roller 7y rises a little in the reset box 7q through the retraction spring at the position, so that in the friction movement of the convex plate 7c and the friction inclined plane 7a with the ground, a certain friction resistance is reduced through the rotation of the walking roller 7y, the pressing and trimming effect on the ground is also increased, at the same time, the air rod 5c works, the ball head 5d contacts and presses the inclined plane 5b to force the abutting plate 5a to move towards all the first gears 4a at the position, namely all the check rings 5e at the front side are respectively inserted into the annular grooves 4b of the first gears 4a at the respective positions in a one-to-one mode, the first gears 4a are forced to be closely limited and cannot rotate, the stability in the work of the cutter body 7 is increased, the pressure of the hydraulic cylinder 2a is reduced, after the grader linearly moves on the construction ground, the construction on the side of the ground needs to be leveled, under the conventional condition, the grader needs to turn around, otherwise, the resistance of a cutter used for leveling can be increased, the leveling work is influenced, however, the air rod 5c can retract to work, the ball head 5d resets, the touch plate 5a is pulled back through the acting force of the unlocking spring 5q, the check ring 5e is pulled out of the respective annular groove 4b, the unlocking is realized, then the hydraulic cylinder 2a works again, the protruding plate 7c at the other end of the cutter body 7 and the friction inclined plane 7a are in contact with the ground, and the grader only needs to back up at the moment.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the technical scope of the present invention.

Claims

1. A land leveling tool for a grader, including a footstock (1), a tool body (7), characterized in that: the cutting tool is characterized by further comprising a base (3), a rectangular groove (3a) is formed in the lower surface of the base (3), the middle section of the tool body (7) is in shaft connection with the rectangular groove (3a), a group of transmission mechanisms are respectively arranged outside the left side and the right side of the base (3), the two groups of transmission mechanisms are used for driving the front end and the rear end of the tool body (7) to alternately rise, a stroke assembly (2) used for driving the two groups of transmission mechanisms to synchronously work is arranged on the upper portion of the top seat (1), locking assemblies are respectively arranged on the left side and the right side of the base (3), the two locking assemblies are respectively used for locking and limiting the group of transmission mechanisms, a soil isolation assembly is arranged in the groove bottom of the rectangular groove (3a), and the upper surface of the tool body (7) is;

the two groups of transmission mechanisms are identical in structure, each transmission mechanism comprises a plurality of first gears (4a) which are sequentially arranged along the vertical height of the base (3), all the first gears (4a) are in shaft connection with the outer side surface of the base (3), all the first gears (4a) are sequentially meshed along the respective arrangement sequence, the movable shaft is horizontally arranged, two ends of the movable shaft respectively penetrate through the left side and the right side of the base (3), and the two ends of the movable shaft are respectively coaxially and fixedly connected with one first gear (4a) on the two sides of the base (3);

the stroke assembly (2) comprises a hydraulic cylinder (2a), a rotating shaft and two rack plates (2d), two bearing seats are symmetrically arranged in an opening of the top seat (1), the rotating shaft is hinged in the opening of the top seat (1) through the two bearing seats, two ends of the rotating shaft respectively extend out of the top seat (1), and are respectively sleeved with a second gear (2b), the two second gears (2b) are respectively meshed with a first gear (4a) outside two sides of the base (3), two third gears (2c) are further symmetrically sleeved on the rotating shaft, the two third gears (2c) are respectively positioned in the opening of the top seat (1), the two rack plates (2d) are vertically positioned in the opening of the top seat (1) and also penetrate through the bottom wall in the opening of the top seat (1), the two rack plates (2d) are respectively meshed with the third gears (2c), the top plate is arranged outside the opening of the top seat (1) and used for sealing the opening face of the top seat, the hydraulic cylinder (2a) is arranged on the top plate in an inverted mode, an output rod of the hydraulic cylinder (2a) penetrates through the top plate and is fixedly connected with the two rack plates (2d) through the linkage plate (2e), and the linkage plate (2e) is driven by the hydraulic cylinder (2a) to enable the two rack plates (2d) to vertically move in the opening of the top seat (1).

2. The grading blade for a grader as in claim 1 wherein: base (3) are rectangular shape structure, and base (3) are vertical gesture fixed mounting at the lower surface of footstock (1), and footstock (1) is close V type structure to its opening face is up all the time, and the both sides that footstock (1) is relative are bending structure, and the direction that this both sides were bent sets up in opposite directions, and both sides that footstock (1) is relative constitute one with the front and back both ends of cutter body (7) respectively and bulldoze uncovered (1 a).