CN108176433B - It is a kind of for chemical materials or the crusher of building stone - Google Patents

Abstract

The invention discloses a kind of for chemical materials or the crusher of building stone, including body (10) and precrushing mechanism (20), body (10) includes rack (110), eccentric shaft (111), determines jaw (112) and dynamic jaw (113).Determine to form crushing chamber (120) between jaw (112) and dynamic jaw (113), precrushing mechanism (20) includes precrushing head (210) and adjusts component (211), mobilizable be set to of precrushing head (210) is determined on jaw (112), adjusts component (211) for driving precrushing head (210) to move back and forth.Crusher provided by the invention, before being crushed to industrial chemicals or building stone, precrushing is carried out to it first, keep raw material cracked, destroy the surface stress of industrial chemicals or building stone, to keep it broken more easily, crushing effect is good, and crusher will not be caused to damage because raw material hardness is larger.

Description

It is a kind of for chemical materials or the crusher of building stone

Technical field

The present invention relates to crushing mechanism technical fields, and in particular to a kind of Taw crushing apparatus more particularly to one kind are used for The crusher of the broken chemical materials or building stone that material is harder, volume is slightly larger.

Background technique

Jaw crusher, is commonly called as that jaw is broken also known as tiger mouthful.Crusher chamber is formed by dynamic two pieces of jaws of jaw and quiet jaw, is simulated Two jaw movements of animal and the crusher for completing material crushing operation.Jaw crusher is simple with structure, manufacture is easy, work The advantages that reliable, is widely used in the broken of the various ores of chemical industry and bulk materials.

Application No. is CN201610432681.8, the Chinese invention of entitled " jaw crusher motor integral structure " A kind of jaw crusher is provided in patent application, this crusher is simple pendular jaw crusher, and jaw crusher is mainly by machine Frame, eccentric shaft determine the structures such as jaw and dynamic jaw composition, and eccentric shaft drives dynamic jaw to swing so that dynamic jaw and determine jaw to material into Row is broken.Larger in the hardness of chemical field, part material, the crushing effect using traditional jaw crusher is poor.

Summary of the invention

The purpose of the present invention is to provide a kind of chemical industry crushers, are effectively improved crushing effect, and protect crusher It is not easily damaged during the work time.

In order to solve the above technical problem, the present invention provides following technical solutions:

It is a kind of for chemical materials or the crusher of building stone, the crusher include body and precrushing mechanism, institute It states body to include rack, eccentric shaft, determine jaw and dynamic jaw, the eccentric shaft is rotatably supported in the rack, the eccentric shaft One end be provided with the belt wheel of power source drive, the other end of the eccentric shaft is provided with flywheel, described to determine jaw and be fixed on The rack, one end of the dynamic jaw is sheathed on the eccentric shaft and the reciprocally swinging under the drive of the eccentric shaft, described fixed Crushing chamber is formed between jaw and the dynamic jaw；The precrushing mechanism includes precrushing head and adjusting component, the precrushing head It is mobilizable be set to it is described determine jaw, the adjusting component is for driving the precrushing head to move back and forth, so that described pre- broken Broken head, which has, to be entered the crushing chamber and carries out the precrushing state of precrushing to raw material and be detached from the buffering of the crushing chamber State.

Further, described to determine jaw and be provided with accommodating cavity, the first precrushing hole and the second precrushing hole, described first is pre- broken Broken hole and second precrushing hole are coaxially disposed and are connected to the accommodating cavity, and second precrushing hole is crushed with described Room connection；The adjusting component includes the first slide bar, the second slide bar, U-shaped part, reset spring and reciprocating member, first slide bar It is slidably arranged in first precrushing hole, second slide bar is slidably arranged in second precrushing hole, institute State between the first slide bar and second slide bar by the U-shaped part connection and first slide bar and second slide bar be located at The two sides of the U-shaped part, the U-shaped part be U-shaped and be located in the accommodating cavity, the opening direction of the U-shaped part and described the The axis of one slide bar is vertical, and the precrushing head is fixed on one end far from the U-shaped part of second slide bar, described pre- broken Broken head be it is coniform, the diameter of section of the precrushing head is gradually reduced from one end close to second slide bar to the other end； The reset spring is sheathed on first slide bar and is respectively held against the inner surface and the U-shaped part of the accommodating cavity, described multiple Position spring makes the precrushing head have the trend moved towards the crushing chamber；The reciprocating member is set to the accommodating cavity Interior, the reciprocating member includes two blocks of parallel and coaxial arrangement plectanes, and the plectane is rotatably supported in by connecting shaft The rack is connected with power rail, the axis of plectane described in the axis runout of the power rail between two blocks of plectanes；It is described U-shaped part is located between two blocks of plectanes, and the reciprocating member rotates under the drive of power source and drives the power rail around institute Connection shaft rotation is stated, the distance between the opening of the U-shaped part and the pivot center of the reciprocating member are first distance, described The shortest distance between power rail and the pivot center of the reciprocating member is second distance, and the first distance is less than described second Distance, so that the power rail, which has, to be entered in the U-shaped part and drive the U-shaped part in the reciprocating member rotation process It is directed away from the first state of the crushing chamber direction movement, and is detached from the U-shaped part and the U-shaped part in the reset bullet Second state of return under the action of spring.

Further, two opposite outer surfaces of the U-shaped part are provided with connecting sleeve, setting in the connecting sleeve There are the first internal screw thread, one end of the close U-shaped part of first slide bar and the close U-shaped part of second slide bar One end be provided with interconnecting piece, the interconnecting piece is provided with the first external screw thread with first screw-internal thread fit, the company Socket part is threaded engagement in the connecting sleeve.

Further, the power rail is round bar, and the spacing between two opposite inner surfaces of the U-shaped part is greater than described The diameter of power rail, two free ends of the U-shaped part have guidance slope surface, and the section of the guidance slope surface is arc-shaped.

Further, the precrushing mechanism further includes electrodeless variable-speed component, and the electrodeless variable-speed component includes the first chain Wheel, driving member and tensioner, first sprocket wheel are coaxially disposed with the belt wheel and can rotate synchronously, and the driving member includes Middle part and multiple hydraulic telescopic rods, the middle part is coaxially fixed with connection shaft described in one of them and synchronous can turn Dynamic, the hydraulic telescopic rod is radially extended along the middle part, circumferential direction of the multiple hydraulic telescopic rod along the middle part It is uniformly distributed, one end far from the middle part of the hydraulic telescopic rod is provided with the second sprocket wheel, first sprocket wheel and institute It states the second sprocket wheel and passes through chain drive；The tensioner includes sliding block, third sprocket wheel and tensioning spring, is provided in the rack Sliding slot, the sliding block are slidably arranged in the sliding slot, and the third sprocket wheel is rotatably set to the sliding block, described Third sprocket wheel and the chain interoperation, the tensioning spring are set in the sliding slot, and the both ends of the tensioning spring are supported respectively The inner surface and the sliding block of sliding slot are stated in residence, and the tensioning spring makes the third sprocket wheel compressing in the chain and makes described Chain tension.

Further, the middle part includes casing and at least one anti-resistor, and described sleeve pipe is sheathed on one of institute It states connection shaft and is relatively rotatable to each other, the anti-resistor includes deterring pipe, friction block and deterring spring, is arranged in described sleeve pipe There is tapped through hole, the second internal screw thread is provided in the tapped through hole, the pipe that deters is tubulose, and described one end for deterring pipe is Closed end, the other end for deterring pipe are open end, and the outer surface for deterring pipe is provided with matches with second internal screw thread The second external screw thread closed, the pipe that deters are inserted into the tapped through hole and described deter pipe and the tapped through hole screw thread is nibbled Close, the open end is located in the tapped through hole, the friction block be slidably embedded at described in deter in pipe, it is described to deter Spring deters in pipe described in being set to, and the both ends for deterring spring are connected to the closed end and the friction block, institute respectively It states and deters spring the friction block is pressed in the connection shaft, described sleeve pipe passes through the friction block and the connection shaft Between frictional force drive plectane rotation, when the rotary resistance of the connection shaft is greater than default resistance threshold value, it is described in Between portion rotation and the connection shaft it is motionless.

Further, the connection shaft of multiple plectanes is moved synchronously by belt.

Further, the outer sheath of the power rail is equipped with roller, the inner surface of the roller and the power rail it is outer At least three bearings are provided between surface.

Further, the body further includes stretching assembly, and the stretching assembly includes stretch rod and extension spring, described It is provided with stretching through-hole in rack, the inner surface for stretching through-hole is recessed spherical shape, is provided with work in the stretching through-hole Moving part, the movable part are the penetrating tubulose in both ends, and the outer surface of the movable part is the surface of revolution being defined by a radius, described Multiple balls are provided between the outer surface of movable part and the inner surface for stretching through-hole；The stretch rod is slidably worn In in the movable part, one end of the stretch rod is articulated with one end far from the eccentric shaft of the dynamic jaw, the stretching Spring pocket is set to the stretch rod, and the both ends of the extension spring are connected to the rack and the stretch rod, the drawing respectively Stretch spring make the dynamic jaw far from the eccentric shaft one end have be directed away from it is described determine jaw direction move trend.

Further, the body further includes diagonal brace component, and the diagonal brace component has slide and tilt prop, the rack On be provided with slideway, the slide is slidably embedded in the slideway, is provided with locking bolt and sliding in the slideway Spring is provided with multiple lock holes in the slideway, and the multiple lock hole is distributed along the glide direction of the slide, the lock Determine hole and be provided with third internal screw thread, the locking bolt is provided with the third external screw thread with the third screw-internal thread fit, described Locking bolt selectivity is threaded engagement in one of them described lock hole, to change one of stop position of the slide It sets, the sliding spring is connected to the inner surface and the slide of the slideway respectively, and the sliding spring is by the slide pressure Tightly in the locking bolt, one end of the tilt prop is articulated with the dynamic jaw, and the other end of the tilt prop is articulated with slide, The angle between the side and the slideway of the eccentric shaft of the tilt prop is greater than 90 °；The tilt prop is to described When the pressure that slide applies is more than preset pressure threshold value, the slide can be slided along the slideway, be also set up in the slideway There is sensor, the sensor is used to detect the position of the slide, and the sensor detects the slide in the slideway The power source is controlled when interior sliding to stop working.

The beneficial effects obtained by the present invention are as follows being:

It is first before being crushed to industrial chemicals provided by the present invention for chemical materials or the crusher of building stone Precrushing first is carried out to it, keep raw material cracked etc., the surface stress of industrial chemicals or building stone is destroyed, so that right Industrial chemicals or building stone it is broken more easily, crushing effect is good, and will not cause because raw material hardness is larger Crusher damage.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of chemical industry crusher provided in an embodiment of the present invention；

Fig. 2 is the partial enlargement diagram in Fig. 1 at A；

Fig. 3 is the structural schematic diagram of diagonal brace component；

Fig. 4 is the partial enlargement diagram in Fig. 1 at B；

Fig. 5 is the structural schematic diagram of precrushing mechanism；

Fig. 6 is precrushing head and the matching relationship schematic diagram for adjusting component；

Fig. 7 is the structural schematic diagram of the U-shaped part of Fig. 6；

Fig. 8 is the structural schematic diagram of the first slide bar of Fig. 6；

Fig. 9 is the second slide bar of Fig. 6 and the structural schematic diagram of precrushing head；

Figure 10 is the structural schematic diagram of the reciprocating member in Fig. 5；

Figure 11 is reciprocating member and the matching relationship schematic diagram for adjusting component；

Figure 12 is the structural schematic diagram of electrodeless variable-speed component；

Figure 13 is the partial sectional view of Figure 12.

Appended drawing reference correspondence is as follows:

1- crusher；

10- body；20- precrushing mechanism；

110- rack；111- eccentric shaft；112- determines jaw；113- moves jaw；114- power source；115- belt wheel；116- stretching group Part；117- diagonal brace component；120- crushing chamber；121- accommodating cavity；The first precrushing of 122- hole；The second precrushing of 123- hole；125- Sliding slot；127- stretch rod；128- extension spring；129- movable part；130- ball；131- slideway；132- slide；133- diagonal brace Plate；134- locking bolt；135- slides spring；136- lock hole；

210- precrushing head；211- adjusts component；212- electrodeless variable-speed component；The first slide bar of 215-；The second slide bar of 216-； 217-U shape part；218- reset spring；219- reciprocating member；221- connecting sleeve；222- interconnecting piece；223- guides slope surface；225- circle Plate；226- connection shaft；227- power rail；228- roller；The first sprocket wheel of 231-；232- driving member；233- tensioner；In 235- Between portion；236- hydraulic telescopic rod；The second sprocket wheel of 237-；239- sliding block；240- third sprocket wheel；241- tensioning spring；243- casing； The anti-resistor of 244-；245- deters pipe；246- friction block；247- deters spring.

Specific embodiment

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description.

It please refers to shown in Fig. 1, the embodiment of the invention provides a kind of for chemical materials or the crusher 1 of building stone, The crusher 1 is mainly used for chemical materials or building stone harder to material, that volume is slightly larger and is crushed, and certainly, uses this Crusher 1 be crushed to other materials also possible.

It is described in detail below for all parts of the crusher 1.

Crusher 1 is mainly made of body 10 and precrushing mechanism 20, and body 10 is crushed for realizing to industrial chemicals, Precrushing mechanism 20 is used to carry out precrushing to industrial chemicals.

When industrial chemicals or building stone to be broken is poured into crusher 1, carried out first by precrushing mechanism 20 pre- broken It is broken, the surface stress of industrial chemicals is destroyed, is then further crushed using body 10.

The structure of body 10 is referred to the prior art, and in the present embodiment, body 10 includes rack 110, eccentric shaft 111, determine jaw 112, dynamic jaw 113, stretching assembly 116 and diagonal brace component 117.

Wherein, rack 110 is for being supported all parts.

Eccentric shaft 111 is rotatably supported in rack 110, and one end of eccentric shaft 111 is provided with belt wheel 115, eccentric shaft 111 The other end be provided with flywheel.

Belt wheel 115 drives rotation by power source 114, is driven between belt wheel 115 and power source 114 by belt.

The axis of eccentric shaft 111 is not overlapped with the axis of belt wheel 115, and belt wheel 115 rotates under the drive of power source 114 When, the axis of eccentric shaft 111 moves in a circle around the axis of belt wheel 115.

Flywheel can in 115 high speed rotation of belt wheel store kinetic energy and 115 revolving speed of belt wheel reduce when discharge, for reducing Velocity perturbation during machine operation.

Determine jaw 112 and be fixed on rack 110, determine jaw 112 and remained stationary relative to rack 110, the side for determining jaw 112 has jaw Plate, jaw with industrial chemicals for contacting.

One end of dynamic jaw 113 is sheathed on eccentric shaft 111, and in 111 rotation process of eccentric shaft, the one end for moving jaw 113 can be with It is moved with eccentric shaft 111, reciprocally swinging under the action of stretching assembly 116 and diagonal brace component 117.

Determine between jaw 112 and dynamic jaw 113 formed crushing chamber 120, the top of crushing chamber 120 is big, bottom end is small, industrial chemicals from The top of crushing chamber 120 enters in crushing chamber 120, and crushing chamber 120 is the chamber structure of an all round closure, material to be broken In crushing chamber 120, it is broken that extruding occlusion is carried out under the action of dynamic jaw 113.

Shown in referring to figure 2., stretching assembly 116 includes stretch rod 127 and extension spring 128, is provided with drawing in rack 110 Through-hole is stretched, stretch rod 127 is slidably arranged in stretching through-hole, and one end of stretch rod 127 is articulated with the separate eccentric of dynamic jaw 113 One end of axis 111.

Extension spring 128 is sheathed on stretch rod 127, and the both ends of extension spring 128 are connected to rack 110 and stretch rod respectively 127, extension spring 128 make the separate eccentric shaft 111 of jaw 113 one end have be directed away from determine 112 direction of jaw movement become Gesture.

Shown in referring to figure 3., diagonal brace component 117 has slide 132 and tilt prop 133, and one end of tilt prop 133 is articulated with Dynamic jaw 113, the other end of tilt prop 133 are articulated with slide 132.

The working principle of body 10 is as follows:

Power source 114 is rotated by belt driving pulley 115, and belt wheel 115 drives eccentric shaft 111 to rotate, and eccentric shaft 111 makes Jaw 113 must be moved to move up and down and swing.

When dynamic jaw 113 rises, the angle between tilt prop 133 and dynamic jaw 113 becomes larger, to push dynamic jaw 113 to calmly Jaw 112 is close, in this case, determine jaw 112 industrial chemicals is crushed or is split with dynamic 113 collective effect of jaw it is broken.

When dynamic 113 downlink of jaw, the angle between tilt prop 133 and dynamic jaw 113 becomes smaller, and extension spring 128 pulls pull rod, To make jaw 113 far from jaw 112 is determined, at this point, broken material is discharged from the discharge gate of crushing chamber 120.

In 115 rotation process of belt wheel, above-mentioned movement is repeated in body 10, to realize the crushing to industrial chemicals.

Before being crushed to industrial chemicals or building stone, first industrial chemicals is carried out using precrushing mechanism 20 pre- broken Broken, the specific structure of precrushing is as follows:

Shown in referring to figure 4., determines jaw 112 and be provided with accommodating cavity 121, the first precrushing hole 122 and the second precrushing hole 123, wherein the first precrushing hole 122 and the second precrushing hole 123 are connected to accommodating cavity 121, and the second precrushing hole 123 are connected to crushing chamber 120.

First precrushing hole 122 and the second precrushing hole 123 are circular hole, the first precrushing hole 122 and the second precrushing Hole 123 is coaxially disposed.

Referring to figure 4., shown in Fig. 5, precrushing mechanism 20 includes precrushing head 210, adjusts component 211 and electrodeless variable-speed group Part 212,Electrodeless variable-speed component 212 please refers to shown in Figure 12, and precrushing head 210 adjusts component 211 and use for contacting industrial chemicals In moving back and forth precrushing head 210, electrodeless variable-speed component 212 is used to adjust the reciprocating frequency of precrushing head 210.

Specifically, mobilizable be set to of precrushing head 210 determines jaw 112, precrushing head 210 is coniform, precrushing head 210 diameter of section is gradually increased from one end close to crushing chamber 120 to the other end.

Precrushing head 210 needs to be made of high strength alloy material, in 210 reciprocatory movement of precrushing head, with change Work raw material is contacted and is detached from repeatedly.

Component 211 is adjusted for driving precrushing head 210 to move back and forth, so that 210 pairs of industrial chemicals of precrushing head carry out Impact, in this process, precrushing head 210 have two states, and respectively precrushing head 210 enters crushing chamber 120 and right Raw material carries out the precrushing state of precrushing and the buffer status of the disengaging crushing chamber 120 of precrushing head 210.

It is necessary to have certain impact forces when precrushing head 210 is in precrushing state, therefore, present embodiments provide Following scheme:

Referring to figure 5. and shown in Fig. 6, the specific structure for adjusting component 211 is referred to but is not limited to following scheme: adjusting Component 211 includes the first slide bar 215, the second slide bar 216, U-shaped part 217, reset spring 218 and reciprocating member 219.

First slide bar 215 and the second slide bar 216 are round bar, and the diameter of the first slide bar 215 and the first precrushing hole 122 Corresponding, the diameter of the second slide bar 216 is corresponding with the second precrushing hole 123, so that the first slide bar 215 is slidably arranged in first Precrushing hole 122, the second slide bar 216 are slidably arranged in the second precrushing hole 123.

For U-shaped part 217 between the first slide bar 215 and the second slide bar 216, the section of U-shaped part 217 is U-shaped.

U-shaped part 217 is located in accommodating cavity 121 and can move in accommodating cavity 121.

First slide bar 215 is connect with one of outer surface of U-shaped part 217, and the second slide bar 216 and U-shaped part 217 are in addition One outer surface connection, the first slide bar 215 and the second slide bar 216 are located at the two sides of U-shaped part 217.

The connection type of first slide bar 215 and U-shaped part 217 and the second slide bar 216 and U-shaped part 217 can use following Scheme:

It please refers to shown in Fig. 7, two opposite outer surfaces of U-shaped part 217 are provided with connecting sleeve 221, connecting sleeve 221 Inside it is provided with the first internal screw thread.

It please refers to shown in Fig. 8, Fig. 9, one end of close U-shaped part 217 of the first slide bar 215 and leaning on for the second slide bar 216 One end of nearly U-shaped part 217 is provided with interconnecting piece 222, and interconnecting piece 222 is provided with the first outer spiral shell with the first screw-internal thread fit Line, interconnecting piece 222 are threaded engagement in connecting sleeve 221.

Wherein, the opening direction of U-shaped part 217 being arranged radially along the first slide bar 215.

Precrushing head 210 is fixed on one end of the separate U-shaped part 217 of the second slide bar 216.

U-shaped part 217 in reciprocatory movement, is able to drive precrushing head 210 and enters crushing chamber 120 in accommodating cavity 121 Or be detached from out of crushing chamber 120, the movement of U-shaped part 217 is controlled by two parts, respectively reset spring 218 and reciprocating member 219。

Wherein, reset spring 218 is sheathed on the first slide bar 215 and is respectively held against the inner surface and U-shaped part of accommodating cavity 121 217, reset spring 218 makes precrushing head 210 have the trend moved towards crushing chamber 120.

Reciprocating member 219 is set in accommodating cavity 121, and for pushing U-shaped part 217 to be directed away from the direction of crushing chamber 120 Movement, in the process, reset spring 218 are compressed, and when reciprocating member 219 is detached from U-shaped part 217, reset spring 218 is multiple Position.

It please refers to shown in Figure 10, Figure 11, the specific structure of reciprocating member 219 are as follows: reciprocating member 219 includes two blocks of plectanes 225, circle Plate 225 is circular plate, and two blocks of plectanes 225 are parallel and are coaxially disposed, and U-shaped part 217 is held between two blocks of plectanes 225, and U Shape part 217 can move between two blocks of plectanes 225, and two blocks of plectanes 225 are for limiting U-shaped part 217, to make U-shaped Part 217 can be slided but is not able to rotate.

Plectane 225 is rotatably supported in rack 110 by connecting shaft 226, and connecting can between shaft 226 and body 10 Bearing is arranged.

Power rail 227, the axis of the axis runout plectane 225 of power rail 227 are connected between two blocks of plectanes 225.

Shown in referring to figure 5., 227 outer sheath of power rail is equipped with roller 228, the inner surface of roller 228 and power rail 227 At least three bearings are provided between outer surface, three bearings are uniformly distributed along the axis of power rail 227, the inner ring of bearing and dynamic Power bar 227 is fixed, and the outer ring of bearing and the outer surface of roller 228 are fixed.

For roller 228 for contacting U-shaped part 217, resistance when relative motion occurs for the two is smaller.

Reciprocating member 219 rotates under the drive of power source 114 and power rail 227 is driven to rotate around connection shaft 226.

For convenience, it is first defined as follows: between the opening of U-shaped part 217 and the pivot center of reciprocating member 219 Distance is first distance, and the shortest distance between power rail 227 and the pivot center of reciprocating member 219 is second distance, is being added After roller 228, second distance may be considered the shortest distance between roller 228 and the pivot center of reciprocating member 219.

First distance is less than second distance, correspondingly, the radius of roller 228 is less than the axis and reciprocating member 219 of roller 228 The distance between pivot center.

The matching relationship of reciprocating member 219 and U-shaped part 217 please refers to shown in Figure 11.

In 219 rotation process of reciprocating member, power rail 227, which has, to be entered in U-shaped part 217 and drives U-shaped part 217 towards remote First state from the movement of 120 direction of crushing chamber, and U-shaped part 217 and U-shaped part 217 are detached under the action of reset spring 218 Second state of return.

When power rail 227 is in first state, roller 228 and the inner surface of U-shaped part 217 are in rolling contact.

In addition, power rail 227 is round bar, the spacing between two opposite inner surfaces of U-shaped part 217 is greater than power rail 227 Diameter, also, the spacing between the diameter of roller 228 two inner surfaces opposite again smaller than U-shaped part 217.

The reason of above-mentioned design, is, if industrial chemicals or building stone to be broken is really up to the mark, causes U-shaped part 217 can not Preset right stop is moved to, the position of roller 228 and U-shaped part 217 can be made deviation occur, roller 228 is difficult to enter U-shaped part In 217.When the spacing between the diameter of roller 228 two inner surfaces opposite again smaller than U-shaped part 217, even if U-shaped part 217 Position lead to not reach right stop because of obstruction, roller 228 is also able to enter in U-shaped part 217, the diameter and U-shaped of roller 228 The relationship of spacing between two opposite inner surfaces of part 217, which can according to need, to be set.

Two free ends of U-shaped part 217 have guidance slope surface 223, and the section of guidance slope surface 223 is arc-shaped.Guide slope Face 223 can more smoothly be entered in U-shaped part 217 with guide roller 228.

It please refers to shown in Figure 12, the specific structure of electrodeless variable-speed component 212 are as follows: electrodeless variable-speed component 212 includes the first chain Wheel 231, driving member 232 and tensioner 233.

First sprocket wheel 231 is coaxially disposed and can rotate synchronously with belt wheel 115, is arranged on the first sprocket wheel 231 with teeth.

Driving member 232 includes middle part 235 and multiple hydraulic telescopic rods 236, and middle part 235 is cylindric.

Middle part 235 connect the coaxial fixation of shaft 226 with one of them and can rotate synchronously.

Machine breakdown caused by resistance is excessive in order to prevent, present embodiments provides following scheme, please refers to shown in Figure 13, Middle part 235 includes casing 243 and at least one anti-resistor 244.

Casing 243 is sheathed on one of connection shaft 226, clearance fit and energy between casing 243 and connection shaft 226 It is enough to relatively rotate.

The connection shaft 226 of multiple plectanes 225 is moved synchronously by belt.

For rotating synchronously casing 243 and connection shaft 226, the rotary resistance of connection shaft 226 is greater than anti-resistor 244 When default resistance threshold value, middle part 235 is rotated and connection shaft 226 is motionless.

Specifically, anti-resistor 244 is including deterring pipe 245, friction block 246 and deterring spring 247.The meaning of anti-resistor 244 For the component damaged when for preventing resistance excessive to machine.

It is provided with tapped through hole on casing 243, the second internal screw thread is provided in tapped through hole, deterring pipe 245 is tubulose, is prevented The outer surface of resistance pipe 245 is provided with the second external screw thread with the second screw-internal thread fit, deters in the insertion tapped through hole of pipe 245 and anti- Hinder pipe 245 and the engagement of tapped through hole screw thread.

Pipe 245 is deterred by screwing, thus it is possible to vary deters position of the pipe 245 in tapped through hole.

The one end for deterring pipe 245 is closed end, and the other end for deterring pipe 245 is open end, and open end is located at tapped through hole It is interior.

Friction block 246 is slidably embedded at and deters in pipe 245, and friction block 246 is contacted with connection shaft 226, also, is rubbed The end face of the close connection shaft 226 of cleaning block 246 is cylindrical surface.

It deters spring 247 and is set to and deter in pipe 245, the both ends for deterring spring 247 are connected to closed end and friction respectively Block 246, deter spring 247 by friction block 246 be pressed in connection shaft 226, casing 243 by friction block 246 with connect shaft Frictional force between 226 drives plectane 225 to rotate.

When deterring position of the pipe 245 in tapped through hole and changing, the adjustable elastic force for deterring spring 247, with Change the default resistance threshold value for making casing 243 and connecting shaft 226 and relatively rotating.

Hydraulic telescopic rod 236 is radially extended along middle part 235, circumferential direction of multiple hydraulic telescopic rods 236 along middle part 235 It is uniformly distributed.Hydraulic telescopic rod 236 is scalable under the action of hydraulic, so as to adjust length.

One end of the separate middle part 235 of hydraulic telescopic rod 236 is provided with the second sprocket wheel 237, the first sprocket wheel 231 and second Sprocket wheel 237 passes through chain drive.

When the length of hydraulic telescopic rod 236 changes, the diameter of driving member 232 changes, thus change transmission ratio, Further, since the variation free of discontinuities of the length of hydraulic telescopic rod 236, thus electrodeless variable-speed may be implemented, precrushing head 210 it is reciprocal Motion frequency adjustable range is wider.

In 236 telescopic process of hydraulic telescopic rod, necessarily lead to the relaxation or tensioning of chain, is needed at this time using tensioner 233 pairs of the elastic of chain are adjusted.

Specifically, tensioner 233 includes sliding block 239, third sprocket wheel 240 and tensioning spring 241.

Sliding slot 125 is provided in rack 110, sliding block 239 is slidably arranged in sliding slot 125, and third sprocket wheel 240 can turn Dynamic is set to sliding block 239, third sprocket wheel 240 and chain interoperation, and tensioning spring 241 is set in sliding slot 125, tensioning spring 241 both ends are respectively held against the inner surface and sliding block 239 of sliding slot 125, and tensioning spring 241 makes third sprocket wheel 240 be pressed in chain And make chain tension.

In order to keep the movement of stretching assembly 116 more smooth, following scheme can be used: stretch the inner surface recess of through-hole Spherical shape.

It stretches and is provided with movable part 129 in through-hole, movable part 129 is the penetrating tubulose in both ends, the outer surface of movable part 129 For the surface of revolution being defined by a radius, multiple balls are provided between the outer surface of movable part 129 and the inner surface for stretching through-hole 130；Stretch rod 127 is slidably arranged in movable part 129,

In the prior art, when industrial chemicals or building stone to be broken is harder is difficult to broken, dynamic jaw 113 can be prevented Proper motion, and then jaw may be destroyed etc., it is general to be carried out more using the destruction of tilt prop 133 is made in order to improve the problem It mends, this mode can destroy the construction of crusher 1, increase production cost.

Improvement project is proposed in the present embodiment: being provided with slideway 131 in rack 110, locking is provided in slideway 131 Bolt 134 and sliding spring 135, are provided with multiple lock holes 136 in slideway 131.

Lock hole 136 is circular hole, and multiple lock holes 136 are distributed along the glide direction of slide 132, and lock hole 136 is provided with Third internal screw thread, locking bolt 134 are provided with the third external screw thread with third screw-internal thread fit, 134 selectivity of locking bolt It is threaded engagement in one of lock hole 136.

Slide 132 is slidably embedded in slideway 131, one of stop position of the locking bolt 134 as slide 132 It sets, slide 132 is limited.

Sliding spring 135 is connected to the inner surface and slide 132 of slideway 131 respectively, and sliding spring 135 presses slide 132 Tightly the angle between locking bolt 134, the side and slideway 131 of the close eccentric shaft 111 of tilt prop 133 is greater than 90 °.

When tilt prop 133 is more than preset pressure threshold value to the pressure that slide 132 applies, slide 132 can be sliding along slideway 131 It is dynamic.

In addition, being additionally provided with sensor, sensor in slideway 131 to enable staff to find the problem faster For detecting the position of slide 132, sensor detects that slide 132 slides time control brake force source 114 in slideway 131 and stops work Make.

Claims (9)

1. it is a kind of for chemical materials or the crusher of building stone, including body (10) and precrushing mechanism (20), the machine Body (10) includes rack (110), eccentric shaft (111), determines jaw (112) and dynamic jaw (113), and the eccentric shaft (111) is rotatable It is supported in the rack (110), one end of the eccentric shaft (111) is provided with the belt wheel of power source (114) drive (115), the other end of the eccentric shaft (111) is provided with flywheel, described to determine jaw (112) and be fixed on the rack (110), described The one end of dynamic jaw (113) is sheathed on the eccentric shaft (111) and the reciprocally swinging under the drive of the eccentric shaft (111), described Determine to form crushing chamber (120) between jaw (112) and the dynamic jaw (113), it is characterised in that: the precrushing mechanism (20) includes Precrushing head (210) adjusts component (211) and electrodeless variable-speed component (212), the mobilizable setting of the precrushing head (210) Determine jaw (112) in described, the adjusting component (211) is for driving the precrushing head (210) to move back and forth, so that described pre- Crushing head (210), which has, to be entered the crushing chamber (120) and carries out described in the precrushing state and disengaging of precrushing to raw material The buffer status of crushing chamber (120), adjusting component (211) includes the first slide bar (215), the second slide bar (216), U-shaped part (217), reset spring (218) and reciprocating member (219), the first slide bar (215) and the second slide bar (216) are connected by U-shaped part (217) It connects and the first slide bar (215) and the second slide bar (216) is located at the two sides of U-shaped part (217), precrushing head (210) is fixed on One end of the separate U-shaped part (217) of second slide bar (216)；Reciprocating member (219) includes two blocks of parallel and coaxial arrangement plectanes (225), plectane (225) is rotatably supported in rack (110) by connecting shaft (226), is connected between two pieces of plectanes (225) Dynamic bar (227), the axis of the axis runout plectane (225) of power rail (227), U-shaped part (217) are located at two blocks of plectanes (225) between；Electrodeless variable-speed component (212) is used to adjust the reciprocating frequency of precrushing head (210), electrodeless variable-speed component It (212) include that the first sprocket wheel (231), driving member (232) and tensioner (233), the first sprocket wheel (231) and belt wheel (115) are coaxial It is arranged and can rotates synchronously, driving member (232) includes middle part (235) and multiple hydraulic telescopic rods (236), middle part (235) It is coaxial fixed and can rotate synchronously, hydraulic telescopic rod (236) radially extending along middle part (235), biography with shaft (226) is connect The diameter of moving part (232) changes with the length of hydraulic telescopic rod (236) and is changed, and realizes middle part to change transmission ratio (235) one end of the electrodeless variable-speed rotated, the separate middle part (235) of hydraulic telescopic rod (236) is equipped with the second sprocket wheel (237), By chain drive, the first sprocket wheel (231) follows the rotation of belt wheel (115) and warp for first sprocket wheel (231) and the second sprocket wheel (237) Chain, the second sprocket wheel (237) and hydraulic telescopic rod (236) driving middle part (235) rotation, connection shaft (226) follow centre Portion (235) rotates and reciprocating member (219) is driven to move, and the movement of reciprocating member (219) drives precrushing head through U-shaped part (217) (210) it moves.

2. crusher according to claim 1, it is characterised in that: described to determine jaw (112) and be provided with accommodating cavity (121), One precrushing hole (122) and the second precrushing hole (123), first precrushing hole (122) and second precrushing hole (123) it is coaxially disposed and is connected to the accommodating cavity (121), second precrushing hole (123) and the crushing chamber (120) Connection；First slide bar (215) is slidably arranged in first precrushing hole (122), and second slide bar (216) can Sliding is arranged in second precrushing hole (123), and the U-shaped part (217) is U-shaped and is located in the accommodating cavity (121), The opening direction of the U-shaped part (217) is vertical with the axis of first slide bar (215), and the precrushing head (210) is circular cone The diameter of section of shape, the precrushing head (210) is gradually reduced from one end close to second slide bar (216) to the other end； The reset spring (218) is sheathed on first slide bar (215) and is respectively held against inner surface and the institute of the accommodating cavity (121) It states U-shaped part (217), the reset spring (218) has the precrushing head (210) towards the crushing chamber (120) fortune Dynamic trend；The reciprocating member (219) is set in the accommodating cavity (121), the opening of the U-shaped part (217) with it is described past The distance between pivot center of copy (219) is first distance, turn of the power rail (227) and the reciprocating member (219) The shortest distance between shaft line is second distance, and the first distance is less than the second distance, so that in the reciprocating member (219) in rotation process, the power rail (227), which has, to be entered in the U-shaped part (217) and drives U-shaped part (217) court To the first state moved far from the crushing chamber (120) direction, and it is detached from the U-shaped part (217) and the U-shaped part (217) under the action of the reset spring (218) return the second state.

3. crusher according to claim 2, it is characterised in that: two opposite outer surfaces of the U-shaped part (217) are all provided with It is equipped with connecting sleeve, the first internal screw thread, the close U-shaped part of first slide bar (215) are provided in the connecting sleeve (217) one end close to the U-shaped part (217) of one end and second slide bar (216) is provided with interconnecting piece (222), the interconnecting piece (222) is provided with the first external screw thread with first screw-internal thread fit, interconnecting piece (222) spiral shell Line is engaged in the connecting sleeve.

4. crusher according to claim 2, it is characterised in that: the power rail (227) is round bar, the U-shaped part (217) spacing between two opposite inner surfaces be greater than the power rail (227) diameter, two of the U-shaped part (217) Free end has guidance slope surface (223), and the section of guidance slope surface (223) is arc-shaped.

5. crusher according to claim 2, it is characterised in that: the multiple hydraulic telescopic rod (236) is along the centre The circumferential direction in portion (235) is uniformly distributed, and the tensioner (233) includes sliding block (239), third sprocket wheel (240) and tensioning spring (241), it is provided with sliding slot (125) on the rack (110), the sliding block (239) is slidably arranged on the sliding slot (125) Interior, the third sprocket wheel (240) is rotatably set on the sliding block (239), the third sprocket wheel (240) and the chain Cooperation, the tensioning spring (241) are set in the sliding slot (125), and the both ends of the tensioning spring (241) are respectively held against institute The inner surface and the sliding block (239) of sliding slot (125) are stated, the tensioning spring (241) is pressed in the third sprocket wheel (240) The chain and make the chain tension.

6. crusher according to claim 5, it is characterised in that: the middle part (235) includes casing (243) and at least One anti-resistor (244), described sleeve pipe (243) are sheathed on one of them described connection shaft (226) and are relatively rotatable to each other, institute Stating anti-resistor (244) includes deterring pipe (245), friction block (246) and deterring spring (247), and described sleeve pipe is provided on (243) Tapped through hole is provided with the second internal screw thread in the tapped through hole, and described deter pipe (245) are tubulose, described to deter pipe (245) One end be closed end, the other end for deterring pipe (245) be open end, the outer surface for deterring pipe (245) is provided with With the second external screw thread of second screw-internal thread fit, it is described deter pipe (245) insertion tapped through hole in and deter pipe (245) and The engagement of tapped through hole screw thread, open end are located in tapped through hole, and friction block (246), which is slidably embedded at, to be deterred in pipe (245), It is described deter spring (247) be set to it is described deter in pipe (245), the both ends for deterring spring (247) are connected to envelope respectively Closed end and friction block (246) deter spring (247) for friction block (246) and are pressed in connection shaft (226), and casing (243) passes through Friction block (246) drives plectane (225) rotation, the rotation resistance of connection shaft (226) with the frictional force connecting between shaft (226) When power is greater than default resistance threshold value, middle part (235) is rotated and the connection shaft (226) is motionless.

7. crusher according to claim 2, it is characterised in that: the outer sheath of the power rail (227) is equipped with roller (228), at least three bearings are provided between the inner surface of the roller (228) and the outer surface of the power rail (227).

8. crusher according to claim 1, it is characterised in that: the body (10) further includes stretching assembly (116), institute Stating stretching assembly (116) includes stretch rod (127) and extension spring (128), is provided with stretching through-hole on the rack (110), The inner surface for stretching through-hole is recessed spherical shape, is provided with movable part (129), the movable part in the stretching through-hole (129) tubulose penetrating for both ends, the outer surface of the movable part (129) is the surface of revolution being defined by a radius, the activity Multiple balls (130) are provided between the outer surface of part (129) and the inner surface for stretching through-hole；The stretch rod (127) It is slidably arranged in the movable part (129), one end of the stretch rod (127) is articulated with the remote of the dynamic jaw (113) One end from the eccentric shaft (111), the extension spring (128) are sheathed on the stretch rod (127), the extension spring (128) both ends are connected to the rack (110) and the stretch rod (127) respectively, and the extension spring (128) makes described dynamic One end far from the eccentric shaft (111) of jaw (113), which has, is directed away from the trend for determining the movement of jaw (112) direction.

9. crusher according to claim 1, it is characterised in that: the body (10) further includes diagonal brace component (117), institute Stating diagonal brace component (117) has slide (132) and tilt prop (133), is provided with slideway (131) on the rack (110), described Slide (132) is slidably embedded in the slideway (131), and locking bolt (134) is provided in the slideway (131) and is slided It moves spring (135), is provided with multiple lock holes (136) in the slideway (131), the multiple lock hole (136) is along the cunning The glide direction distribution of seat (132), the lock hole (136) are provided with third internal screw thread, and the locking bolt (134) is provided with With the third external screw thread of the third screw-internal thread fit, locking bolt (134) selectivity is threaded engagement in one of them In the lock hole (136), to change one of dead-centre position of the slide (132), the sliding spring (135) is respectively It is connected to the inner surface and the slide (132) of the slideway (131), the sliding spring (135) presses the slide (132) Tightly in the locking bolt (134), one end of the tilt prop (133) is articulated with the dynamic jaw (113), the tilt prop (133) the other end is articulated with slide (132), the tilt prop (133) close to the eccentric shaft (111) side with it is described Angle between slideway (131) is greater than 90 °；The tilt prop (133) is more than default pressure to the pressure that the slide (132) applies When force threshold, the slide (132) can be slided along the slideway (131), be additionally provided with sensor in the slideway (131), The sensor is used to detect the position of the slide (132), and the sensor detects the slide (132) in the slideway (131) power source (114) is controlled when sliding in stop working.