Jaw crusher

Abstract

The utility model relates to the technical field of crushing, in particular to a jaw crusher which comprises two groups of frame body side plates, the static jaw assembly is arranged between the two groups of frame body side plates; the static jaw assembly comprises a static jaw frame and a static jaw, wherein a first cavity is formed in the static jaw frame; the movable jaw assembly is arranged between the two groups of frame body side plates and is opposite to the static jaw assembly; the movable jaw assembly comprises a movable jaw frame and a movable jaw, wherein a second cavity is formed in the movable jaw frame; and the two groups of auxiliary crushing devices are respectively arranged in the first cavity and the second cavity and are used for improving the crushing efficiency. By operating the auxiliary crushing device, the auxiliary crushing device can move to the gap between the jaw plates, so that the ore entering the gap can impact the auxiliary crushing device, the hardness of the auxiliary crushing device is utilized to crush the ore, the ore is prevented from sliding downwards from the gap, and the ore crushing is more thorough.

Description

Technical Field

[0001] The utility model relates to the technical field of crushing, in particular to a jaw crusher. Background Art

[0002] A jaw crusher, commonly known as a jaw crusher or tiger's mouth, consists of two jaw plates, a movable jaw and a stationary jaw, forming a crushing chamber that simulates the movement of an animal's jaws to crush materials. It is widely used to crush various ores and bulk materials in industries such as mining and smelting, building materials, highways, railways, water conservancy, and the chemical industry.

[0003] However, when the existing jaw crusher is in use, jaw plates are installed on the movable jaw frame and the static jaw frame, and the two sets of jaw plates are engaged with each other by the movement of the movable jaw frame, so as to crush the ore. However, since the jaw plates are composed of pieces of strip plates, there are gaps between these strip plates, so that during crushing, some smaller ores will slide down through these gaps, and the ores entering the gaps between the strip plates cannot be crushed, resulting in incomplete crushing of the ore. Utility Model Content

[0004] The utility model aims to solve the problem that the existing jaw crusher cannot crush the ore entering the gap between the strip plates, resulting in insufficient crushing of the ore.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A jaw crusher comprising:

[0007] Two sets of frame side panels, the two sets of frame side panels are connected by a base;

[0008] The static jaw assembly is arranged between the two sets of frame side plates; the static jaw assembly includes: a static jaw frame, wherein a first cavity is formed inside the static jaw frame;

[0009] The movable jaw assembly is disposed between the two sets of frame side plates and is disposed opposite to the static jaw assembly. The movable jaw assembly and the static jaw assembly cooperate to crush the ore. The movable jaw assembly includes: a movable jaw frame, wherein a second cavity is formed inside the movable jaw frame;

[0010] a driving device connected to the movable jaw assembly and used to drive the movable jaw assembly to move;

[0011] An adjustment assembly, comprising a toggle plate and a hydraulic adjustment structure, wherein one end of the toggle plate is rotatably connected to the movable jaw assembly, and the other end is rotatably connected to the hydraulic adjustment structure; the hydraulic adjustment structure is used to adjust the distance between the movable jaw assembly and the static jaw assembly;

[0012] Two sets of auxiliary crushing devices are respectively arranged in the first cavity and the second cavity to improve the crushing efficiency.

[0013] Preferably, each group of the auxiliary crushing devices includes:

[0014] Mobile board;

[0015] Multiple groups of push rods, one end of each group of push rods passes through the corresponding position of the movable plate;

[0016] A plurality of fixing components, each fixing component being fixedly connected to the outer surface of the mandrel;

[0017] Two sets of limit sliders are symmetrically arranged at the upper and lower ends of the movable plate;

[0018] A support frame, wherein the inner surface of the support frame is provided with two sets of sliding grooves and is slidably connected to the limit slider through the sliding grooves;

[0019] An electric push rod, the output end of which is fixedly connected to the support frame.

[0020] Preferably, each set of the fixing components includes:

[0021] A limiting member is sleeved on the outer surface of the push rod and is tightly fitted with one side of the movable plate;

[0022] The fastening nut is tightly fitted with the other side of the movable plate and is threadedly connected to the push rod.

[0023] Preferably, the static jaw assembly further comprises:

[0024] A plurality of reinforcement plates are arranged on a side of the static jaw frame away from the movable jaw frame;

[0025] A plurality of groups of fixed jaw plates are all arranged on one side of the static jaw frame close to the movable jaw frame.

[0026] Preferably, the movable jaw assembly further comprises: a plurality of groups of movable jaw plates; the plurality of groups of movable jaw plates are all arranged on a side of the movable jaw frame close to the static jaw frame.

[0027] Preferably, the driving device comprises:

[0028] an eccentric wheel, disposed at the top of the movable jaw frame and slidably connected to the movable jaw frame;

[0029] A rotating shaft passes through a corresponding position of the eccentric wheel;

[0030] A transmission assembly, comprising a belt and a first pulley and a second pulley, wherein the first pulley is connected to the second pulley via the belt; the axis of the first pulley is fixedly connected to one end of the rotating shaft;

[0031] A counterweight wheel, the axis of which is fixedly connected to the other end of the rotating shaft;

[0032] A first motor, wherein an output end of the first motor is fixedly connected to the axis of the second pulley.

[0033] Preferably, it further comprises: a sealing device; the sealing device is arranged between the two groups of the frame side plates, and is used to seal the first cavity and the second cavity.

[0034] Preferably, the sealing device comprises:

[0035] The two sets of side lining plates are both tightly fitted with the static jaw frame and the movable jaw frame; the two sets of side lining plates are connected by a connecting piece;

[0036] A movable block is disposed above the side lining plate and fixedly connected to the side lining plate;

[0037] a threaded rod, passing through a corresponding position of the moving block and being threadedly connected to the moving block;

[0038] A second motor, wherein an output end of the second motor is fixedly connected to an end of the threaded rod away from the moving block.

[0039] Preferably, it further comprises: a buffer device; the buffer device is located below the adjustment component and is used to buffer the movable jaw frame.

[0040] Preferably, the buffer device comprises:

[0041] An articulated seat, rotatably connected to the movable jaw frame;

[0042] A connecting rod, one end of which is fixedly connected to an end of the articulated seat away from the movable jaw frame;

[0043] a ball fixedly connected to the other end of the connecting rod;

[0044] A movable rod, one end of which is provided with a spherical groove and is slidably connected to the ball through the spherical groove;

[0045] a piston, fixedly connected to the other end of the movable rod;

[0046] a sleeve, wherein a gas storage chamber is defined in the interior of the sleeve and is slidably connected to the piston through the gas storage chamber;

[0047] An air inlet, one end of which is connected to the gas storage chamber, and the other end of which is connected to the outside world.

[0048] The beneficial effect proposed by the utility model is that: by operating the auxiliary crushing device, the auxiliary crushing device will move to the gap between the jaw plates, so that the ore entering the gap will collide with the auxiliary crushing device, and the auxiliary crushing device itself is used to crush the ore, preventing the ore from sliding down from these gaps, making the crushing of the ore more thorough. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 This is a schematic diagram of the structure of the utility model;

[0050] Figure 2 for Figure 1 Schematic diagram of the cross-sectional plan of the internal connection structure;

[0051] Figure 3 for Figure 2 Schematic diagram of the left view of the middle part connection structure;

[0052] Figure 4 for Figure 2 A three-dimensional enlarged schematic diagram of the middle part connection structure;

[0053] Figure 5 for Figure 2 Schematic diagram of the connection structure at point A.

[0054] In the figure: 1. side plate of the frame, 2. static jaw frame, 3. reinforcement plate, 4. fixed jaw plate, 5. movable jaw frame, 6. movable jaw plate, 7. eccentric wheel, 8. rotating shaft, 9. transmission assembly, 10. counterweight wheel, 11. first motor, 12. adjustment assembly, 13. hinge seat, 14. connecting rod, 15. ball, 16. movable rod, 17. piston, 18. sleeve, 19. air inlet, 20. movable plate, 21. limiting slider, 22. support frame, 23. electric push rod, 24. push rod, 25. limiting piece, 26. fastening nut, 27. side lining, 28. connecting piece, 29. movable block, 30. threaded rod, 31. second motor. DETAILED DESCRIPTION

[0055] The present invention will be further described below with reference to the accompanying drawings:

[0056] This embodiment:

[0057] See also Figure 1-5 In this embodiment: a jaw crusher includes: two sets of frame side plates 1, a static jaw assembly, a movable jaw assembly, a driving device, an adjusting assembly 12 and two sets of auxiliary crushing devices.

[0058] In this embodiment, the two groups of frame side plates 1 are connected through a base; the static jaw assembly is arranged between the two groups of frame side plates 1; the static jaw assembly includes: a static jaw frame 2, and a first cavity is formed inside the static jaw frame 2; the movable jaw assembly is arranged between the two groups of frame side plates 1, and is arranged opposite to the static jaw assembly, and the movable jaw assembly and the static jaw assembly cooperate to crush the ore.

[0059] In this embodiment, the base is used to support two sets of frame side panels 1; the two sets of frame side panels 1 and the static jaw assembly and the movable jaw assembly form a crushing chamber, the upper part of the crushing chamber is the feed port, and the lower part is the discharge port.

[0060] The movable jaw assembly comprises a movable jaw frame 5 , wherein a second cavity is formed inside the movable jaw frame 5 ; and a driving device is connected to the movable jaw assembly for driving the movable jaw assembly to move.

[0061] In this embodiment, the driving device can cause the movable jaw assembly to reciprocate in the horizontal direction.

[0062] The adjustment assembly 12 consists of a toggle plate and a hydraulic adjustment structure. One end of the toggle plate is rotatably connected to the movable jaw assembly, and the other end is rotatably connected to the hydraulic adjustment structure; the hydraulic adjustment structure is used to adjust the distance between the movable jaw assembly and the static jaw assembly.

[0063] In this embodiment, the movable jaw assembly is pushed to move by the hydraulic adjustment structure, thereby changing the motion trajectory of the movable jaw assembly.

[0064] Two sets of auxiliary crushing devices are respectively arranged in the first cavity and the second cavity to improve the crushing efficiency.

[0065] In this embodiment, the auxiliary crushing device can crush the ore that moves to the gap, thereby improving the crushing efficiency.

[0066] like Figure 2 and Figure 5 As shown, each set of auxiliary crushing devices includes: a moving plate 20, multiple sets of push rods 24, multiple sets of fixed components, two sets of limiting sliders 21, a support frame 22 and an electric push rod 23.

[0067] One end of each set of push rods 24 passes through a corresponding position of the movable plate 20 .

[0068] In this embodiment, multiple groups of push rods 24 are located in the gaps between the jaw plates; the push rods 24 are made of high-strength steel.

[0069] Each set of fixing components is fixedly connected to the outer surface of the top rod 24.

[0070] In this embodiment, the push rod 24 can be fixed on the movable plate 20 by using a fixing assembly. When a single push rod 24 is worn, the push rod 24 can be replaced.

[0071] Two sets of limit sliders 21 are symmetrically arranged at the upper and lower ends of the movable plate 20 ; two sets of sliding grooves are opened on the inner surface of the support frame 22 , and are slidably connected to the limit sliders 21 through the sliding grooves.

[0072] In this embodiment, the limit slider 21 can move along the sliding groove on the limit slider 21 in a direction perpendicular to the frame side panel 1, and the support frame 22 can also drive the movable plate 20 to move in a direction parallel to the frame side panel 1 through the limit slider 21.

[0073] The output end of the electric push rod 23 is fixedly connected to the support frame 22 .

[0074] In this embodiment, the model of the electric push rod 23 is selected according to actual needs and meets the working conditions. The output end of the electric push rod 23 pushes the support frame 22 to move.

[0075] Before crushing, adjust the electric push rod 23 so that the output end of the electric push rod 23 extends; thereby pushing the support frame 22 to move in a direction parallel to the frame side plate 1; the support frame 22 drives the movable plate 20 to move through the limit slider 21; the movable plate 20 simultaneously drives multiple groups of push rods 24 to move, and stops after the push rods 24 extend out of the static jaw frame 2; since the push rods 24 are located in the gap between the jaw plates, the ore will collide with the push rods 24 after entering the gap, and the hardness of the push rods 24 themselves will be used to crush the ore; thus, the ore is prevented from sliding down from these gaps, and the ore is crushed more thoroughly.

[0076] like Figure 5 As shown, each set of fixing components includes: a limiting member 25 and a fastening nut 26.

[0077] The limiting member 25 is sleeved on the outer surface of the push rod 24 and fits tightly with one side of the movable plate 20 ; the fastening nut 26 fits tightly with the other side of the movable plate 20 and is threadedly connected to the push rod 24 .

[0078] In this embodiment, the fastening nut 26 is rotated to disengage the fastening nut 26 from the push rod 24 , so that the push rod 24 can be removed from the movable plate 20 , thereby facilitating the removal and replacement of the worn push rod 24 .

[0079] When the push rod 24 needs to be replaced, first retract the push rod 24 into the static jaw frame 2, and pull the movable plate 20 in the direction perpendicular to the frame side plate 1; the movable plate 20 drives the limiting slider 21 to move along the slide groove on the support frame 22, thereby pulling the movable plate 20 out of the static jaw frame 2; at this time, tighten the fastening nut 26 to disengage the fastening nut 26 from the push rod 24; the push rod 24 can be removed from the movable plate 20, which is convenient for disassembly and replacement of the worn push rod 24.

[0080] like Figure 2As shown, the static jaw assembly further includes: multiple groups of reinforcement plates 3 and multiple groups of fixed jaw plates 4.

[0081] The multiple groups of reinforcing plates 3 are all arranged on the side of the static jaw frame 2 away from the movable jaw frame 5 ; the multiple groups of fixed jaw plates 4 are all arranged on the side of the static jaw frame 2 close to the movable jaw frame 5 .

[0082] In this embodiment, the reinforcement plate 3 can improve the ability of the movable jaw frame 5 to withstand impact; the fixed jaw plate 4 can improve the destructive force of the static jaw frame 2 on the ore.

[0083] like Figure 2 As shown, the movable jaw assembly further includes: multiple groups of movable jaw plates 6 ; the multiple groups of movable jaw plates 6 are all arranged on one side of the movable jaw frame 5 close to the static jaw frame 2 .

[0084] In this embodiment, the movable jaw plate 6 can enhance the destructive force of the movable jaw frame 5 on the ore.

[0085] like Figure 1 and Figure 2 As shown, the driving device includes: an eccentric wheel 7, a rotating shaft 8, a transmission assembly 9, a counterweight wheel 10 and a first motor 11.

[0086] The eccentric wheel 7 is arranged at the top end of the movable jaw frame 5 and is slidably connected to the movable jaw frame 5 .

[0087] In this embodiment, when the eccentric wheel 7 rotates eccentrically, it slides with the movable jaw frame 5, causing the movable jaw frame 5 to swing back and forth horizontally with a small amplitude.

[0088] The rotating shaft 8 passes through the corresponding position of the eccentric wheel 7; the transmission assembly 9 consists of a belt and a first pulley and a second pulley, the first pulley is connected to the second pulley through a belt; the axis of the first pulley is fixedly connected to one end of the rotating shaft 8.

[0089] In this embodiment, when the second pulley rotates, the first pulley is driven to rotate through the belt, and the first pulley drives the rotating shaft 8 to rotate synchronously, and the rotating shaft 8 causes the eccentric wheel 7 to rotate eccentrically.

[0090] The axis of the counterweight wheel 10 is fixedly connected to the other end of the rotating shaft 8; the output end of the first motor 11 is fixedly connected to the axis of the second pulley.

[0091] In this embodiment, by providing a counterweight wheel 10, the forces acting on both ends of the rotating shaft 8 can be balanced, making the rotation of the rotating shaft 8 more stable; the model of the first motor 11 is selected according to actual needs and can meet the working conditions.

[0092] During the crushing process, since both the first cavity and the second cavity have openings, it is easy for the ore to enter the first cavity and the second cavity through the openings.

[0093] In order to solve the above problems, this embodiment proposes an implementation method, the jaw crusher also includes: a sealing device; the sealing device is arranged between the two groups of frame side plates 1, and is used to seal the first cavity and the second cavity.

[0094] In this embodiment, Figure 2 As shown, the sealing device includes: two sets of side lining plates 27, a moving block 29, a threaded rod 30 and a second motor 31.

[0095] Specifically, the two sets of side lining plates 27 are tightly fitted with the static jaw frame 2 and the movable jaw frame 5 ; the two sets of side lining plates 27 are connected by a connecting piece 28 .

[0096] In this embodiment, the side lining plates 27 can be used to block the openings of the first cavity and the second cavity to prevent the entry of ore; and the two sets of side lining plates 27 can be moved simultaneously by the connecting piece 28.

[0097] The moving block 29 is disposed above the side lining plate 27 and is fixedly connected to the side lining plate 27 .

[0098] In this embodiment, the side lining plate 27 can be driven to move by the moving block 29 .

[0099] The threaded rod 30 passes through the corresponding position of the moving block 29 and is threadedly connected to the moving block 29 ; the output end of the second motor 31 is fixedly connected to the end of the threaded rod 30 away from the moving block 29 .

[0100] In this embodiment, the model of the second motor 31 is selected according to actual needs and meets the working conditions; the output end of the second motor 31 drives the threaded rod 30 to rotate, and the threaded rod 30 causes the moving block 29 to move horizontally.

[0101] When sealing is required, the side lining plates 27 can be used to block the openings of the first cavity and the second cavity to prevent ore from entering; when the movable plate 20 needs to be removed, the second motor 31 is started, and the output end of the second motor 31 drives the threaded rod 30 to rotate; the threaded rod 30 causes the movable block 29 to move horizontally; the movable block 29 drives the side lining plates 27 to move; the connecting piece 28 can make the two groups of side lining plates 27 move at the same time; so that the side lining plates 27 are away from the openings of the first cavity and the second cavity, and the movable plate 20 is taken out through the opening here, and the top rod 24 is replaced.

[0102] Since the movable jaw frame 5 needs to undergo high-frequency and small-amplitude horizontal reciprocating swings during crushing, buffering is required to reduce the pressure on the eccentric wheel 7. The existing buffering method uses high-strength springs, but the high-frequency and small-amplitude horizontal reciprocating swings will greatly reduce the service life of the springs.

[0103] In order to solve the above problem, this embodiment proposes an implementation method, the jaw crusher further includes: a buffer device; the buffer device is located below the adjustment component 12 and is used to buffer the movable jaw frame 5.

[0104] In this embodiment, Figure 2 As shown, the buffer device includes: an articulated seat 13, a connecting rod 14, a ball 15, a movable rod 16, a piston 17, a sleeve 18 and an air inlet 19.

[0105] The hinge seat 13 is rotatably connected to the movable jaw frame 5 ; one end of the connecting rod 14 is fixedly connected to an end of the hinge seat 13 away from the movable jaw frame 5 .

[0106] In this embodiment, when the movable jaw frame 5 swings, the hinge seat 13 and the connecting rod 14 rotate slightly and move horizontally at the same time.

[0107] The ball 15 is fixedly connected to the other end of the connecting rod 14; one end of the movable rod 16 is provided with a spherical groove, and is slidably connected to the ball 15 through the spherical groove.

[0108] In this embodiment, the connecting rod 14 can drive the ball 15 to rotate in the spherical groove, and push the movable rod 16 to move through the spherical groove.

[0109] The piston 17 is fixedly connected to the other end of the movable rod 16 ; a gas storage chamber is provided inside the sleeve 18 , and is slidably connected to the piston 17 through the gas storage chamber.

[0110] In this embodiment, the movable rod 16 drives the piston 17 to move. When the piston 17 moves toward the outside of the sleeve 18, the air pressure in the sleeve 18 is reduced; and when the piston 17 moves toward the inside of the sleeve 18, the air pressure in the sleeve 18 is increased; the air in the sleeve 18 is an inert gas.

[0111] One end of the air inlet 19 is connected to the gas storage chamber, and the other end is connected to the outside.

[0112] In this embodiment, gas can be filled into the sleeve 18 through the gas inlet 19 .

[0113] During buffering, after the movable jaw frame 5 swings, the hinge seat 13 and the connecting rod 14 will rotate slightly and move horizontally at the same time; the connecting rod 14 drives the ball 15 to rotate in the spherical groove, and pushes the movable rod 16 to move through the spherical groove; the movable rod 16 drives the piston 17 to move; when the piston 17 moves toward the outside of the sleeve 18, the air pressure in the sleeve 18 will decrease; and when the piston 17 moves toward the inside of the sleeve 18, the air pressure in the sleeve 18 will increase; the purpose of buffering is achieved, and this buffering method can be used for a long time.

[0114] Working principle:

[0115] When the jaw crusher is in use, a crushing chamber is formed between the two sets of frame side plates 1 and the static jaw assembly and the movable jaw assembly. The upper part of the crushing chamber is the feed port, and the lower part is the discharge port. The ore is poured into the crushing chamber from the feed port.

[0116] Before this, the openings of the first cavity and the second cavity can be blocked by using the side lining plate 27 to prevent the ore from entering.

[0117] Afterwards, the electric push rod 23 is adjusted so that the output end of the electric push rod 23 extends out; thereby pushing the support frame 22 to move in a direction parallel to the frame side plate 1; the support frame 22 drives the movable plate 20 to move through the limit slider 21; the movable plate 20 simultaneously drives multiple groups of push rods 24 to move, and stops after the push rods 24 extend out of the static jaw frame 2; since the push rods 24 are located in the gap between the jaw plates, the ore will collide with the push rods 24 after entering the gap, and the hardness of the push rods 24 itself will be used to crush the ore; thus, the ore is prevented from sliding down from these gaps, and the ore is crushed more thoroughly.

[0118] Then, the drive device is operated to start crushing the ore.

[0119] When the ejector pin 24 needs to be replaced, the second motor 31 is started, and the output end of the second motor 31 drives the threaded rod 30 to rotate; the threaded rod 30 causes the moving block 29 to move horizontally; the moving block 29 drives the side lining plates 27 to move; the connecting member 28 can move the two sets of side lining plates 27 simultaneously, so that the side lining plates 27 are away from the openings of the first cavity and the second cavity;

[0120] Finally, retract the push rod 24 into the static jaw frame 2, and pull the movable plate 20 in the direction perpendicular to the frame side plate 1; the movable plate 20 drives the limiting slider 21 to move along the slide groove on the support frame 22, thereby pulling the movable plate 20 out of the static jaw frame 2; at this time, tighten the fastening nut 26 to disengage the fastening nut 26 from the push rod 24; the push rod 24 can be removed from the movable plate 20, which is convenient for disassembly and replacement of the worn push rod 24.

[0121] After the movable jaw frame 5 swings, the hinge seat 13 and the connecting rod 14 will rotate slightly and move horizontally at the same time; the connecting rod 14 drives the ball 15 to rotate in the spherical groove, and pushes the movable rod 16 to move through the spherical groove; the movable rod 16 drives the piston 17 to move; when the piston 17 moves toward the outside of the sleeve 18, the air pressure in the sleeve 18 will decrease; and when the piston 17 moves toward the inside of the sleeve 18, the air pressure in the sleeve 18 will increase; the purpose of buffering is achieved, and this buffering method can be used for a long time, completing the use of this device.

[0122] While the present invention has been shown and described with reference to preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A jaw crusher, characterized by: include: Two sets of frame side panels (1), the two sets of frame side panels (1) are connected via a base; The static jaw assembly is arranged between the two sets of frame side plates (1); the static jaw assembly comprises: a static jaw frame (2), wherein a first cavity is formed inside the static jaw frame (2); The movable jaw assembly is arranged between the two sets of frame side plates (1) and is arranged opposite to the static jaw assembly. The movable jaw assembly cooperates with the static jaw assembly to crush the ore. The movable jaw assembly includes: a movable jaw frame (5), and a second cavity is formed inside the movable jaw frame (5); a driving device connected to the movable jaw assembly and used to drive the movable jaw assembly to move; An adjustment assembly (12) is composed of a toggle plate and a hydraulic adjustment structure, wherein one end of the toggle plate is rotatably connected to the movable jaw assembly, and the other end is rotatably connected to the hydraulic adjustment structure; the hydraulic adjustment structure is used to adjust the distance between the movable jaw assembly and the static jaw assembly; Two sets of auxiliary crushing devices are respectively arranged in the first cavity and the second cavity to improve the crushing efficiency.

2. The jaw crusher according to claim 1, characterized in that: Each group of auxiliary crushing devices includes: Moving plate (20); A plurality of groups of push rods (24), one end of each group of push rods (24) passing through a corresponding position of the movable plate (20); A plurality of sets of fixing components, each set of fixing components being fixedly connected to the outer surface of the push rod (24); Two sets of limiting sliders (21) are symmetrically arranged at the upper and lower ends of the movable plate (20); A support frame (22), wherein the inner surface of the support frame (22) is provided with two sets of sliding grooves, and the support frame (22) is slidably connected to the limiting slider (21) through the sliding grooves; An electric push rod (23), the output end of which is fixedly connected to the support frame (22).

3. The jaw crusher according to claim 2, characterized in that: Each set of the fixing components includes: A limiting member (25) is sleeved on the outer surface of the push rod (24) and is tightly fitted with one side of the movable plate (20); The fastening nut (26) is tightly fitted with the other side of the movable plate (20) and is threadedly connected to the push rod (24).

4. The jaw crusher according to claim 1, characterized in that: The static jaw assembly further comprises: A plurality of groups of reinforcing plates (3) are all arranged on a side of the static jaw frame (2) away from the movable jaw frame (5); A plurality of groups of fixed jaw plates (4) are all arranged on one side of the static jaw frame (2) close to the movable jaw frame (5).

5. The jaw crusher according to claim 1, characterized in that: The movable jaw assembly further comprises: a plurality of groups of movable jaw plates (6); the plurality of groups of movable jaw plates (6) are all arranged on one side of the movable jaw frame (5) close to the static jaw frame (2).

6. The jaw crusher according to claim 1, characterized in that: The driving device comprises: An eccentric wheel (7) is arranged at the top end of the movable jaw frame (5) and is slidably connected to the movable jaw frame (5); A rotating shaft (8) passes through a corresponding position of the eccentric wheel (7); A transmission assembly (9) is composed of a belt, a first pulley, and a second pulley, wherein the first pulley is connected to the second pulley via the belt; the axis of the first pulley is fixedly connected to one end of the rotating shaft (8); a counterweight wheel (10), wherein the axis of the counterweight wheel (10) is fixedly connected to the other end of the rotating shaft (8); A first motor (11), wherein an output end of the first motor (11) is fixedly connected to the axis of the second pulley.

7. The jaw crusher according to claim 1, characterized in that: Also includes: Sealing device; the sealing device is arranged between the two sets of frame side plates (1) and is used to seal the first cavity and the second cavity.

8. The jaw crusher according to claim 7, characterized in that: The sealing device comprises: The two sets of side lining plates (27) are both tightly fitted with the static jaw frame (2) and the movable jaw frame (5); the two sets of side lining plates (27) are connected by a connecting piece (28); A movable block (29) is disposed above the side lining plate (27) and is fixedly connected to the side lining plate (27); A threaded rod (30) passes through a corresponding position of the moving block (29) and is threadedly connected to the moving block (29); A second motor (31), wherein an output end of the second motor (31) is fixedly connected to an end of the threaded rod (30) away from the moving block (29).

9. The jaw crusher according to claim 1, characterized in that: Also includes: Buffer device; the buffer device is located below the adjustment component (12) and is used to buffer the movable jaw frame (5).

10. The jaw crusher according to claim 9, characterized in that: The buffer device comprises: An articulated seat (13) is rotatably connected to the movable jaw frame (5); A connecting rod (14), one end of which is fixedly connected to an end of the hinge seat (13) away from the movable jaw frame (5); A ball (15) is fixedly connected to the other end of the connecting rod (14); A movable rod (16), one end of which is provided with a spherical groove and is slidably connected to the ball (15) through the spherical groove; A piston (17) is fixedly connected to the other end of the movable rod (16); A sleeve (18), wherein a gas storage chamber is provided inside the sleeve (18), and the sleeve (18) is slidably connected to the piston (17) through the gas storage chamber; An air inlet (19), one end of which is connected to the gas storage chamber, and the other end of which is connected to the outside world.

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