A sandstone system coarse crushing plant jaw blocking device and method of use

Abstract

The application discloses an e-break anti-blocking device for a coarse crushing workshop of a sandstone system, which comprises an e-type crushing mechanism, a feeding mechanism fixedly connected to the right end of the top of the e-type crushing mechanism, a dredging mechanism fixedly connected to the top of the e-type crushing mechanism, and a moving mechanism fixedly connected to the left side of the e-type crushing mechanism. When in use, the feeding conveyor belt and the driving gear one are rotationally connected, the driving gear one is driven by the motor one, and the feeding conveyor belt and the driving gear one are rotated, so that the feeding conveyor belt can convey the stones to the e-type crushing mechanism for crushing processing. The e-type crushing driving device is electrically connected with the eccentric shaft and the eccentric seat. When the material enters between the static e and the dynamic e in the crushing box, the dynamic e on one side makes periodic reciprocating motion relative to the fixed static e under the action of the eccentric shaft and the eccentric seat. When the dynamic e approaches the static e, the stone is clamped between the two e plates and is crushed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of jaw crushers, in particular to a jaw crusher anti-blocking device for a coarse crushing workshop of a sandstone system and a use method thereof. BACKGROUND

[0002] Construction waste refers to construction waste generated due to human or natural causes in engineering, including waste soil, spoil, silt and waste materials, etc. These materials are not helpful for the construction itself, but are substances generated in the process of construction and need to be handled accordingly. The jaw crusher is a commonly used coarse crushing equipment in the sandstone production line, mainly used for preliminary crushing of large stone materials. The existing jaw crusher may cause jamming of the crusher during crushing, affecting the processing progress, and in severe cases, causing damage to the crusher. SUMMARY

[0003] The present application aims to provide a jaw crusher anti-blocking device for a coarse crushing workshop of a sandstone system to solve the problem of jamming of the crusher during crushing, affecting the processing progress, and in severe cases, causing damage to the crusher.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0005] A jaw crusher anti-blocking device for a coarse crushing workshop of a sandstone system, comprising a jaw crusher mechanism, wherein the right end of the top of the jaw crusher mechanism is fixedly connected with a feeding mechanism, the top of the jaw crusher mechanism is fixedly connected with a dredging mechanism, the left side of the jaw crusher mechanism is fixedly connected with a moving mechanism, and the lower end of the jaw crusher mechanism is provided with a discharging mechanism.

[0006] Further, the jaw crusher mechanism comprises a crushing box, the right side of the inner wall of the crushing box is fixedly connected with a static jaw, the left side of the inner wall of the crushing box is slidably connected with a dynamic jaw, the top of the dynamic jaw is fixedly connected with a mounting sleeve, the inner surface of the mounting sleeve is rotatably connected with an eccentric shaft, the outer surfaces of both ends of the eccentric shaft are fixedly connected with eccentric seats, the left sides of the outer surfaces of both eccentric seats are fixedly connected with connecting seats, the left ends of both connecting seats are fixedly connected with a jaw crusher driving device, the front and rear ends of the outer surface of the crushing box are symmetrically fixedly connected with mounting bases, and the bottoms of both mounting bases are fixedly connected with support bases one.

[0007] Further, the feeding mechanism comprises a feeding conveyor belt, the left and right ends of the inner surface of the feeding conveyor belt are rotationally connected with driving gears one, the outer surfaces of the two driving gears one are rotationally connected with support seats one, the front end of the driving gear one on the right side is rotationally connected with a motor one, the outer surface of the motor one is slidably connected with a motor support seat, the bottoms of the four support seats one are fixedly connected with mounting seats one, the bottoms of the two mounting seats one and the motor support seat on the same end are fixedly connected with support plates, and the bottoms of the two support plates are fixedly connected with support bases two.

[0008] Further, the top of the jaw crusher driving device is fixedly connected with a support seat two, the upper end of the right side of the support seat two is fixedly connected with a fixed seat two, the right end of the fixed seat two is fixedly connected with a hydraulic controller, the bottom of the hydraulic controller is fixedly connected with hydraulic telescopic rods in front and back symmetry, the bottoms of the two hydraulic telescopic rods are fixedly connected with a fixed seat one, and the bottom of the fixed seat one is fixedly connected with a dredging seat.

[0009] Further, the bottoms of the two moving seats are fixedly connected with moving rail seats in outer surface symmetry, and the inner surfaces of the two moving seats are threadedly connected with bidirectional threaded shafts.

[0010] Further, the left ends of the two moving rail seats are fixedly connected with a double-drive motor box, and the left ends of the two bidirectional threaded shafts penetrate into the inner surfaces of the left ends of the moving rail seats.

[0011] Further, the top of the double-drive motor box is fixedly connected with a mounting seat two, the right side of the outer surface of the mounting seat two is fixedly connected with an expansion plate, and the right side of the outer surface of the expansion plate is fixedly connected to the left side of the outer surface of the jaw crusher driving device.

[0012] Further, the discharging mechanism comprises a discharging conveyor belt, the left and right ends of the inner surface of the discharging conveyor belt are rotationally connected with driving gears two, the outer surfaces of the two ends of the two driving gears two are rotationally connected with bearings, the outer surfaces of the four bearings are fixedly connected with support seats three, and the front end of the driving gear two on the right side is rotationally connected with a motor two.

[0013] Further, the outer surface of the motor two is slidably connected with a first structure, and one side of the outer part of the first structure is fixedly connected to one side of the outer part of the support seat three.

[0014] Another object of the present application is to provide a use method of the jaw crusher anti-blocking device in the coarse crushing plant of the sandstone system.

[0015] Step one: in use, through the rotation connection between the feeding conveyor belt and the driving gear one, the driving gear one is driven by the motor one, and the feeding conveyor belt and the driving gear one are rotated, so that the feeding conveyor belt conveys the stones to the e-type crushing mechanism for crushing processing, the e-type crushing driving device is electrically connected with the eccentric shaft and the eccentric seat, when the material enters between the static e and the dynamic e in the crushing box, the dynamic e on one side makes periodic reciprocating motion relative to the fixed static e under the action of the eccentric shaft and the eccentric seat, when the dynamic e approaches the static e, the stone is clamped between the two e plates and crushed, as the dynamic e continues to move, the stone is further crushed and sheared under the action of the e plate, the size of the stone block gradually decreases, when the dynamic e moves away from the static e, the material that has been crushed to be small enough is discharged from the bottom of the crushing box under the action of gravity, completing a crushing cycle, through the setting of the dredging mechanism, when the e-type crushing mechanism appears the condition of blocking, the hydraulic telescopic rod is controlled by the hydraulic controller, so that the hydraulic telescopic rod takes the dredging seat to stretch up and down, the stone clamped between the static e and the dynamic e is extruded downward through the up and down stretching of the dredging seat, and the stone is crushed by the dynamic e;

[0016] Step two: then through the setting of the moving mechanism, if the stone cannot be dredged through the dredging mechanism, the bidirectional threaded shaft is driven by the double-drive motor box, so that the bidirectional threaded shaft and the moving seat are screwedly and rotationally connected, the e-type crushing driving device is moved left and right with the moving seat, the distance between the static e and the dynamic e is pulled apart, so that the blocked stone leaks down from the pulled-apart distance, through the setting of the discharging mechanism, the driving gear two is rotationally connected with the discharging conveyor belt under the driving of the motor two, and the crushed stones discharged from the e-type crushing mechanism are sequentially conveyed out through the discharging conveyor belt.

[0017] The beneficial effects of the present application are:

[0018] In use, the feeding conveyor belt and the driving gear one are rotationally connected through the setting of the feeding mechanism, the driving gear one is driven by the motor one, and the feeding conveyor belt and the driving gear one are rotated, so that the feeding conveyor belt conveys the stones to the e-type crushing mechanism for crushing processing, the feeding mechanism can control the flow and speed of the material, so that the e-type crushing mechanism can uniformly receive the material, which is beneficial to the stability of the crushing effect, and can prevent the blocking condition during crushing to a certain extent.

[0019] The application is used, by setting the eccentric crushing mechanism, the eccentric crushing driving device is electrically connected with the eccentric shaft and the eccentric seat, when the material enters between the static eccentric and the dynamic eccentric in the crushing box, the dynamic eccentric on one side makes periodic reciprocating motion relative to the fixed static eccentric under the action of the eccentric shaft and the eccentric seat, when the dynamic eccentric approaches the static eccentric, the stone is clamped between the two eccentric plates and crushed, with the continuous movement of the dynamic eccentric, the stone is further crushed and sheared under the action of the eccentric plate, the size of the stone block gradually decreases, when the dynamic eccentric moves away from the static eccentric, the material that has been crushed to a small enough size is discharged from the bottom of the crushing box under the action of gravity, and a crushing cycle is completed.

[0020] The application is used, by setting the dredging mechanism, when the material is blocked in the eccentric crushing mechanism, the hydraulic control device is used to control the hydraulic telescopic rod, the hydraulic telescopic rod is used to drive the dredging seat to move up and down, the stone blocked between the static eccentric and the dynamic eccentric is extruded downward through the up-down movement of the dredging seat, and the stone is crushed through the dynamic eccentric.

[0021] The application is used, by setting the moving mechanism, if the material cannot be dredged through the dredging mechanism, the double-drive motor box is used to drive the bidirectional threaded shaft, the bidirectional threaded shaft is in threaded rotary connection with the moving seat, the moving seat is used to drive the eccentric crushing driving device to move left and right, the interval between the static eccentric and the dynamic eccentric is widened, the blocked stone can fall down from the widened interval, and the whole operation is simple and convenient.

[0022] The application is used, by setting the discharging mechanism, the driving gear two is in rotary connection with the discharging conveyor belt under the drive of the motor two, the crushed stone discharged from the eccentric crushing mechanism can be conveyed out in sequence through the discharging conveyor belt, and the discharging mechanism can prevent the blocking of the stone outlet to a certain extent. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a whole shaft side structure schematic view of the application;

[0024] Figure 2 It is a feeding mechanism structure schematic view of the application;

[0025] Figure 3 It is a discharging mechanism structure schematic view of the application;

[0026] Figure 4 It is a local split structure schematic view of the application;

[0027] Figure 5 It is a Figure 4 A enlarged structure schematic view of the application;

[0028] Figure 6It is a schematic diagram of the local structure of the movable jaw of the invention;

[0029] Figure 7 It is a schematic diagram of the local structure of the movable jaw of the invention; Figure 6 It is a schematic diagram of the local structure of the movable jaw of the invention;

[0030] Figure 8 It is a schematic diagram of the local structure of the movable jaw of the invention;

[0031] Figure 9 It is a schematic diagram of the local structure of the movable jaw of the invention; Figure 8 It is a schematic diagram of the local structure of the movable jaw of the invention;

[0032] Figure 10 It is a schematic diagram of the local structure of the movable jaw of the invention.

[0033] In the figure: 1, jaw crusher mechanism; 101, crushing box; 102, static jaw; 103, movable jaw; 104, mounting sleeve; 105, eccentric shaft; 106, eccentric seat; 107, connecting seat; 108, jaw crusher driving device; 109, mounting box; 110, mounting base; 111, support base one; 2, feeding mechanism; 201, feeding conveyor belt; 202, driving gear one; 203, support seat one; 204, motor one; 205, mounting seat one; 206, motor support seat; 207, support plate; 208, support base two; 3, dredging mechanism; 301, dredging seat; 302, fixed seat one; 303, hydraulic telescopic rod; 304, hydraulic controller; 305, fixed seat two; 306, support seat two; 4, moving mechanism; 401, moving seat; 402, bidirectional threaded shaft; 403, moving rail seat; 404, double-drive motor box; 405, telescopic plate; 406, mounting seat two; 5, discharging mechanism; 501, discharging conveyor belt; 502, driving gear two; 503, support seat three; 504, bearing; 505, motor two. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the scope of protection of the present application.

[0035] As shown in Figures 1-10 The present application relates to a jaw crusher mechanism for coarse crushing plant of sand and stone system, which comprises a jaw crusher mechanism 1, a feeding mechanism 2 fixedly connected to the right end of the top of the jaw crusher mechanism 1, a dredging mechanism 3 fixedly connected to the top of the jaw crusher mechanism 1, a moving mechanism 4 fixedly connected to the left side of the jaw crusher mechanism 1, and a discharging mechanism 5 arranged at the lower end of the jaw crusher mechanism 1. EMBODIMENT

[0036] Specific implementation process: the jaw crusher mechanism 1 includes a crushing box 101, the right side of the inner wall of the crushing box 101 is fixedly connected with a static jaw 102, the left side of the inner wall of the crushing box 101 is slidably connected with a moving jaw 103, the top of the moving jaw 103 is fixedly connected with a mounting sleeve 104, the inner surface of the mounting sleeve 104 is rotatably connected with an eccentric shaft 105, the outer surfaces of the two ends of the eccentric shaft 105 are fixedly connected with eccentric seats 106, the left sides of the outer surfaces of the two eccentric seats 106 are fixedly connected with connecting seats 107, the left ends of the two connecting seats 107 are fixedly connected with a jaw crusher driving device 108, the front and rear ends of the outer surface of the crushing box 101 are fixedly connected with mounting bases 110, the bottoms of the two mounting bases 110 are fixedly connected with support bases one 111, the jaw crusher driving device 108 is electrically connected with the eccentric shaft 105 and the eccentric seat 106, when the material enters the static jaw 102 and the moving jaw 103 in the crushing box 101, the moving jaw 103 on one side moves periodically relative to the fixed static jaw 102 under the action of the eccentric shaft 105 and the eccentric seat 106, when the moving jaw 103 approaches the static jaw 102, the stone is crushed between the two jaw plates, as the moving jaw 103 continues to move, the stone is further crushed and sheared under the action of the jaw plate, the size of the stone block gradually decreases, when the moving jaw 103 moves away from the static jaw 102, the material that has been crushed to a small enough size is discharged from the bottom of the crushing box 101 under the action of gravity, and a crushing cycle is completed. Embodiment

[0037] Specific implementation process: the feeding mechanism 2 includes a feeding conveyor belt 201, the left and right ends of the inner surface of the feeding conveyor belt 201 are rotatably connected with driving gears one 202, the outer surfaces of the two driving gears one 202 are rotatably connected with support seats one 203, the front end of the right driving gear one 202 is rotatably connected with a motor one 204, the outer surface of the motor one 204 is slidably connected with a motor support seat 206, the bottoms of the four support seats one 203 are fixedly connected with mounting seats one 205, the bottoms of the two mounting seats one 205 and the motor support seat 206 on the same end are fixedly connected with support plates 207, the bottoms of the two support plates 207 are fixedly connected with support bases two 208, the feeding conveyor belt 201 and the driving gears one 202 are rotatably connected, the driving gears one 202 are driven by the motor one 204, and the feeding conveyor belt 201 is rotated through the driving gears one 202, so that the feeding conveyor belt 201 can convey the stones to the jaw crusher mechanism 1 for crushing, the feeding mechanism 2 can control the flow and speed of the material, the jaw crusher mechanism 1 can uniformly receive the material, the stability of the crushing effect is improved, and the jamming during crushing can be prevented to a certain extent. Embodiment

[0038] Specific implementation process: the top of the jaw crusher driving device 108 is fixedly connected with a support seat two 306, the upper end of the right side of the support seat two 306 is fixedly connected with a fixed seat two 305, the right end of the fixed seat two 305 is fixedly connected with a hydraulic controller 304, the bottom of the hydraulic controller 304 is fixedly connected with hydraulic telescopic rods 303 in a front-rear symmetrical manner, the bottoms of the two hydraulic telescopic rods 303 are fixedly connected with a fixed seat one 302 in common, the bottom of the fixed seat one 302 is fixedly connected with a dredging seat 301, when the material jamming condition occurs at the jaw crusher mechanism 1, the hydraulic telescopic rods 303 can be controlled by the hydraulic controller 304, so that the hydraulic telescopic rods 303 take the dredging seat 301 to stretch up and down, and through the up-down stretching of the dredging seat 301, the stone jammed between the static jaw 102 and the dynamic jaw 103 can be extruded downward, and the stone can be crushed by the dynamic jaw 103. Embodiment

[0039] Specific implementation process: the bottom of the jaw crusher driving device 108 is fixedly connected with movable seats 401 in a front-rear symmetrical manner, the outer surfaces of the two movable seats 401 are slidably connected with movable rail seats 403, the inner surfaces of the two movable seats 401 are threadedly connected with bidirectional threaded shafts 402, the left ends of the two movable rail seats 403 are fixedly connected with a double-drive motor box 404 in common, and the left ends of the two bidirectional threaded shafts 402 penetrate through the inner surfaces of the left ends of the movable rail seats 403. If the material cannot be dredged through the dredging mechanism 3, the bidirectional threaded shafts 402 are driven by the double-drive motor box 404, so that the bidirectional threaded shafts 402 are threadedly rotatably connected with the movable seats 401, the movable seats 401 take the jaw crusher driving device 108 to move left and right, the interval between the static jaw 102 and the dynamic jaw 103 is widened, the jammed stone can fall from the widened interval, and the whole operation is simple and convenient.

[0040] The top of the double-drive motor box 404 is fixedly connected with a mounting seat two 406, the right side of the outer surface of the mounting seat two 406 is fixedly connected with an expansion plate 405, the right side of the outer surface of the expansion plate 405 is fixedly connected to the left side of the outer surface of the jaw crusher driving device 108, and the expansion plate 405 can play a dustproof role on the movable rail seat 403. Embodiment

[0041] Specific implementation process: the discharging mechanism 5 includes a discharging conveyor belt 501, the left and right ends of the inner surface of the discharging conveyor belt 501 are both rotationally connected with drive gears two 502, the outer surfaces of the two ends of the two drive gears two 502 are both rotationally connected with bearings 504, the outer surfaces of the four bearings 504 are all fixedly connected with support seats three 503, the front end of the right drive gear two 502 is rotationally connected with a motor two 505, the outer surface of the motor two 505 is slidingly connected with a first structure 506, one side of the outer part of the first structure 506 is fixedly connected to one side of the outer part of the support seat three 503, the drive gear two 502 is rotationally connected with the discharging conveyor belt 501 under the drive of the motor two 505, the crushed stones that are completed by crushing at the jaw crusher mechanism 1 can be sequentially conveyed out through the discharging conveyor belt 501, and the discharging mechanism 5 can prevent the blocking condition of the stone outlet to a certain extent by uniformly receiving the materials.

[0042] The use method of the jaw crusher mechanism for preventing material blocking in a coarse crushing workshop of a sandstone system comprises the following steps:

[0043] Step one: when in use, the upper feeding conveyor belt 201 and the drive gear one 202 are rotationally connected, the drive gear one 202 is driven by the motor one 204, the upper feeding conveyor belt 201 and the drive gear one 202 are rotated, the upper feeding conveyor belt 201 can convey the stones to the jaw crusher mechanism 1 for crushing, the jaw crusher driving device 108 is electrically connected with the eccentric shaft 105 and the eccentric seat 106, when the materials enter between the static jaw 102 and the dynamic jaw 103 in the crushing box 101, the dynamic jaw 103 on one side makes periodic reciprocating motion relative to the fixed static jaw 102 under the action of the eccentric shaft 105 and the eccentric seat 106, when the dynamic jaw 103 approaches the static jaw 102, the stones are clamped between the two jaw plates and are crushed, as the dynamic jaw 103 continues to move, the stones are further crushed and sheared under the action of the jaw plates, the size of the stone blocks gradually decreases, when the dynamic jaw 103 moves away from the static jaw 102, the materials that are crushed to a small enough size are discharged from the bottom of the crushing box 101 under the action of gravity, a crushing cycle is completed, when the material blocking condition occurs at the jaw crusher mechanism 1, the hydraulic controller 304 controls the hydraulic telescopic rod 303, the hydraulic telescopic rod 303 drives the dredging seat 301 to move up and down, the stones clamped between the static jaw 102 and the dynamic jaw 103 are extruded downward, and the stones are crushed by the dynamic jaw 103;

[0044] Step two: then by setting the moving mechanism 4, if through the dredging mechanism 3 can't dredge, through the double drive motor box 404 to drive the double threaded shaft 402, so that the double threaded shaft 402 and the moving seat 401 are screw threadedly connected, through the moving seat 401 with the jaw crusher driving device 108 left and right displacement, that is, the interval between the static jaw 102 and the moving jaw 103 can be pulled open, so as to facilitate the leakage of the jammed stone from the pulled open interval, the whole operation is simple and convenient, through the setting of the discharging mechanism 5, the driving gear two 502 is screw threadedly connected with the discharging conveyor belt 501 under the driving of the motor two 505, the crushed stone after crushing through the jaw crusher mechanism 1 can be conveyed out in turn through the discharging conveyor belt 501, the discharging mechanism 5 can prevent the jamming condition of the stone outlet by uniformly receiving the material.

[0045] The jaw crusher driving device 108 in the scheme can use the jaw crusher driving machine in the prior art, which can drive the moving jaw 103 and the static jaw 102 to cooperate and crush the stone;

[0046] The jaw crusher driving machine is a device for crushing stone through software control, since it is a very mature product in the prior art, therefore, it is not described in detail in the application.

[0047] It should be noted that in this paper, relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0048] Although the embodiments of the application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the application, and the scope of the application is defined by the appended claims and their equivalents.

Claims

1. A jaw crusher anti-jamming device for a coarse crushing workshop in a sand and gravel system, comprising a jaw crushing mechanism (1), characterized in that: The right end of the top of the jaw crusher (1) is fixedly connected to a feeding mechanism (2), the top of the jaw crusher (1) is fixedly connected to a clearing mechanism (3), the left side of the jaw crusher (1) is fixedly connected to a moving mechanism (4), and the lower end of the jaw crusher (1) is provided with a feeding mechanism (5). The jaw crusher (1) includes a crushing box (101). A stationary jaw (102) is fixedly connected to the right side of the inner wall of the crushing box (101). A movable jaw (103) is slidably connected to the left side of the inner wall of the crushing box (101). An installation sleeve (104) is fixedly connected to the top of the movable jaw (103). An eccentric shaft (105) is rotatably connected to the inner surface of the installation sleeve (104). An eccentric seat (106) is fixedly connected to the outer surfaces of both ends of the eccentric shaft (105). A connecting seat (107) is fixedly connected to the left side of the outer surface of both eccentric seats (106). A jaw crusher drive device (108) is fixedly connected to the left and right ends of the two connecting seats (107). An installation base (110) is symmetrically fixedly connected to the front and rear ends of the outer surface of the crushing box (101). A support base (111) is symmetrically fixedly connected to the bottom of both installation bases (110). The jaw crusher drive device (108) is fixedly connected to the top of the support base two (306), and the upper right end of the support base two (306) is fixedly connected to the fixed base two (305). The right end of the fixed base two (305) is fixedly connected to the hydraulic controller (304). The bottom of the hydraulic controller (304) is symmetrically connected to the hydraulic telescopic rods (303). The bottom of the two hydraulic telescopic rods (303) is fixedly connected to the fixed base one (302). The bottom of the fixed base one (302) is fixedly connected to the unblocking seat (301). The jaw crusher drive device (108) has symmetrically fixedly connected movable seats (401) at the bottom. The outer surfaces of the two movable seats (401) are slidably connected with movable rail seats (403), and the inner surfaces of the two movable seats (401) are threaded with bidirectional threaded shafts (402).

2. The anti-jamming device for a jaw crusher in a coarse crushing workshop of a sand and gravel system according to claim 1, characterized in that: The feeding mechanism (2) includes a feeding conveyor belt (201). The left and right ends of the inner surface of the feeding conveyor belt (201) are rotatably connected to a drive gear (202). The outer surfaces of the two drive gears (202) are rotatably connected to a support seat (203). The front end of the drive gear (202) on the right side is rotatably connected to a motor (204). The outer surface of the motor (204) is slidably connected to a motor support seat (206). The bottom of the four support seats (203) is fixedly connected to a mounting seat (205). The bottom of the two mounting seats (205) and the motor support seat (206) at the same end are fixedly connected to a support plate (207). The bottom of the two support plates (207) is fixedly connected to a support base (208).

3. The anti-jamming device for a jaw crusher in a coarse crushing workshop of a sand and gravel system according to claim 1, characterized in that: The left ends of the two movable rail bases (403) are fixedly connected to a dual drive motor housing (404), and the left ends of the two bidirectional threaded shafts (402) penetrate the inner surface of the left end of the movable rail base (403).

4. The anti-jamming device for a jaw crusher in a coarse crushing workshop of a sand and gravel system according to claim 3, characterized in that: The top of the dual-drive motor housing (404) is fixedly connected to the mounting base two (406), and the right side of the outer surface of the mounting base two (406) is fixedly connected to the telescopic plate (405). The right side of the outer surface of the telescopic plate (405) is fixedly connected to the left side of the outer surface of the jaw crusher drive device (108).

5. The anti-jamming device for a jaw crusher in a coarse crushing workshop of a sand and gravel system according to claim 1, characterized in that: The feeding mechanism (5) includes a feeding conveyor belt (501). Both ends of the inner surface of the feeding conveyor belt (501) are rotatably connected to a second drive gear (502). Both ends of the two second drive gears (502) are rotatably connected to a bearing (504). The outer surfaces of the four bearings (504) are fixedly connected to a third support seat (503). The front end of the second drive gear (502) on the right side is rotatably connected to a second motor (505).

6. The anti-jamming device for a jaw crusher in a coarse crushing workshop of a sand and gravel system according to claim 5, characterized in that: The outer surface of the second motor (505) is slidably connected to a first structure (506), and one side of the first structure (506) is fixedly connected to one side of the support base (503).

7. A method for using a jaw crusher anti-jamming device in a coarse crushing workshop of a sand and gravel system, characterized in that, The method of using the jaw crusher anti-jamming device in the coarse crushing workshop of the sand and gravel system according to any one of claims 1-6 includes the following steps: Step 1: In use, the feeding conveyor belt (201) and the drive gear (202) are rotated together. The drive gear (202) is driven by the motor (204). The feeding conveyor belt (201) and the drive gear (202) rotate together, so that the feeding conveyor belt (201) transports the stone to the jaw crusher (1) for crushing. The jaw crusher drive device (108) is electrically connected to the eccentric shaft (105) and the eccentric seat (106). When the material enters the crushing box (101) between the stationary jaw (102) and the moving jaw (103), the moving jaw (103) located on one side performs a periodic reciprocating motion relative to the fixed stationary jaw (102) under the action of the eccentric shaft (105) and the eccentric seat (106). The moving jaw (103) moves closer to the stationary jaw (102). At that time, the stone is sandwiched between the two jaw plates and crushed. As the moving jaw (103) continues to move, the stone is further crushed and sheared under the action of the jaw plates. The size of the stone blocks gradually decreases. When the moving jaw (103) moves away from the stationary jaw (102), the material that has been crushed to a sufficiently small size is discharged from the bottom of the crushing box (101) under the action of gravity, completing a crushing cycle. By setting up the unblocking mechanism (3), when there is a jam at the jaw crushing mechanism (1), the hydraulic controller (304) controls the hydraulic telescopic rod (303) so that the hydraulic telescopic rod (303) moves up and down with the unblocking seat (301). Through the up and down movement of the unblocking seat (301), the stone stuck between the stationary jaw (102) and the moving jaw (103) is squeezed downward and crushed by the moving jaw (103). Step 2: Then, by setting the moving mechanism (4), if the blockage cannot be cleared by the unblocking mechanism (3), the double drive motor box (404) drives the bidirectional threaded shaft (402) so that the bidirectional threaded shaft (402) and the moving seat (401) are connected by a threaded rotation. The moving seat (401) carries the jaw crusher drive device (108) to move left and right, opening the gap between the stationary jaw (102) and the moving jaw (103), so that the stuck stone material can fall through the gap. By setting the feeding mechanism (5), the second drive gear (502) is connected to the feeding conveyor belt (501) under the drive of the second motor (505). The crushed stone that has been crushed by the jaw crusher mechanism (1) is conveyed out by the feeding conveyor belt (501) in sequence.

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