Stone crushing device for road maintenance

Abstract

The utility model relates to the technical field of crushing equipment, and discloses a stone crushing device for road maintenance, which comprises a crushing box and a motor, the motor is electrically connected with an external master controller through a connecting wire, a shaft seat is fixedly mounted on one side of the crushing box, a static jaw plate is fixedly mounted on one side in the crushing box, and an eccentric shaft is movably mounted in the crushing box close to the static jaw plate. One end of the eccentric shaft is in transmission connection with the output end of the motor through a transmission box; a movable jaw plate is movably mounted on the eccentric shaft. The positions of the two single-face wedge blocks are synchronously adjusted through the two-way threaded rod, so that the crushing distance between the movable jaw plate and the static jaw plate is rapidly adjusted in cooperation with the two-face wedge blocks, the adjusting seat and the toggle plate, a shaft sleeve and a wheel ring are arranged at one end of the two-way threaded rod, and an operation handle is movably installed in the wheel ring. Therefore, an arc-shaped rod on the outer side of the operation handle is matched with a tooth block, and a tooth groove in the inner side of a fixing pipe can rapidly and axially limit the bidirectional threaded rod when the crushing distance between the movable jaw plate and the static jaw plate is not adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of crushing equipment, in particular to a stone crushing device for road maintenance. Background Art

[0002] During the maintenance of roads, especially during long-term use, roads will be damaged. These damaged pavement materials, such as concrete blocks and asphalt blocks, can be reused after being processed by crushers as filling or base materials for new pavement structures, thereby realizing the recycling of resources. Old pavement materials can be recycled, but before recycling the old pavement materials, they need to be crushed by crushing equipment;

[0003] When crushing old road materials, jaw crushers are generally used to quickly crush large concrete blocks and asphalt blocks into particle sizes and gradations suitable for road construction. For example, the Chinese utility model patent disclosed by publication number CN218452222U: jaw crusher, the application connects the transmission mechanism between the movable jaw plate assembly and the main power to drive the movable jaw plate assembly to perform an extrusion action toward the static jaw plate, thereby adjusting the crushing distance between the static jaw plate and the movable jaw plate. However, the wedge block of the transmission mechanism is adjusted by rotating the screw when adjusting. The nut connected to the outside of the adjusting screw 1 is threaded to realize the position of the adjusting screw 1 and the adjusting wedge 1. Therefore, the crusher will generate strong vibration and impact force during operation. At the same time, the movable jaw plate will drive the support plate and the wedge 2 to continuously hit the wedge 1 during operation. These forces may directly act on the threaded connection between the adjusting screw 1 and the nut, causing the nut to gradually loosen and rotate during the vibration, thereby changing the installation position of the adjusting screw 1, and then causing the position of the wedge 1 to change, affecting the crushing distance between the static jaw plate and the movable jaw plate. Utility Model Content

[0004] The purpose of the utility model is to provide a stone crushing device for road maintenance, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A stone crushing device for road maintenance comprises a crushing box and a motor, the motor is electrically connected to an external main controller through a connecting line, an axle seat is fixedly installed on one side of the crushing box, a static jaw plate is fixedly installed on one side of the crushing box, an eccentric shaft is movably installed near the static jaw plate in the crushing box, one end of the eccentric shaft is transmission-connected to the output end of the motor through a transmission box, a movable jaw plate is movably installed on the eccentric shaft, a frame is also fixedly installed near the movable jaw plate in the crushing box, a plurality of pull rods are movably connected between the frame and the movable jaw plate, one end of the pull rod passes through the through slot at the lower end of the frame, extends to one side of the frame and is fixedly installed with a limit ring, and is located between the limit ring and the frame The pull rod sleeve is provided with a spring, and an adjustment seat is movably installed in the frame, and a double-sided wedge block is fixedly installed on one side of the adjustment seat, and the side of the adjustment seat opposite to the double-sided wedge block is movably connected to the movable jaw plate through a toggle plate. A first sliding groove is opened in the frame near the double-sided wedge block, and two single-sided wedge blocks are movably installed in the first sliding groove, and a two-way threaded rod is threadedly connected between the two single-sided wedge blocks, one end of the two-way threaded rod passes through the frame and the crushing box and is rotatably installed in the shaft seat, and a handwheel is also fixedly installed on the two-way threaded rod located on one side of the shaft seat. The handwheel also includes a sleeve, a wheel ring is fixedly installed on the outside of the sleeve, and an operating handle is movably installed in the wheel ring.

[0007] As a further preferred solution of the present invention, guide rails are fixedly installed on the top and bottom of the first slide groove.

[0008] As a further preferred embodiment of the present invention, the top and bottom of the single-sided wedge block are both provided with a second slide groove, the single-sided wedge block is inserted and installed in the first slide groove, and the second slide groove is slidably connected to the corresponding guide rail, and the inclined surface of the single-sided wedge block is against one of the inclined surfaces of the double-sided wedge block;

[0009] Based on this, by rotating the bidirectional threaded rod in the screw holes in the two single-sided wedges, the two single-sided wedges can be moved synchronously relative to or oppositely in the first slide groove, thereby cooperating with the pull rod, double-sided wedges, adjustment seat and toggle plate to adjust the crushing distance between the moving jaw plate and the static jaw plate.

[0010] As a further preferred solution of the utility model, a fixing tube is fixedly installed on one side of the shaft seat, and an annular tooth groove is provided on the inner side of the fixing tube.

[0011] As a further preferred embodiment of the present invention, the shaft sleeve is fixedly mounted on one end of the bidirectional threaded rod, and a buckle is also fixedly mounted on the side of the shaft sleeve that is away from the bidirectional threaded rod;

[0012] Based on this, the shaft sleeve and the wheel ring are arranged, and the operating handle is cooperated to facilitate the rotation of the bidirectional threaded rod, while the buckle is arranged to limit the foldable and stored operating handle.

[0013] As a further preferred solution of the utility model, a mounting groove is provided in the wheel ring, and rotation grooves are provided at the top and the bottom of the mounting groove.

[0014] As a further preferred embodiment of the present invention, a connecting block is fixedly mounted on one end of the operating handle, a rotating shaft is fixedly mounted on the top and bottom of the connecting block, an arc-shaped rod is fixedly mounted on the operating handle near the connecting block, a tooth block is fixedly mounted on the end of the arc-shaped rod away from the operating handle, and the connecting block is rotatably mounted in the mounting groove via the rotating shaft;

[0015] Based on this, an arc rod and a tooth block are set on the outside of the operating handle. After the operating handle is folded and stored, the tooth block is inserted into the corresponding tooth groove, which can cooperate with the wheel ring and the bushing to limit the axial movement of the bidirectional threaded rod.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] In the utility model, the positions of the two single-sided wedges are synchronously adjusted by the bidirectional threaded rod, so that the crushing distance between the movable jaw plate and the static jaw plate can be quickly adjusted in cooperation with the double-sided wedges, the adjustment seat and the toggle plate, and a shaft sleeve and a wheel ring are arranged at one end of the bidirectional threaded rod, and an operating handle is movably installed in the wheel ring, so that the arc-shaped rod on the outside of the operating handle and the tooth block cooperate with the tooth groove on the inside of the fixed tube to quickly limit the axial position of the bidirectional threaded rod when the crushing distance between the movable jaw plate and the static jaw plate is not adjusted, so as to prevent the bidirectional threaded rod from rotating due to vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the frame and the movable jaw plate of the utility model;

[0020] Figure 3 This is a schematic diagram of the frame split structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the first state of the operating handle of the utility model;

[0022] Figure 5 This is a schematic diagram of the second state of the operating handle of the utility model;

[0023] Figure 6 This is a schematic diagram of the split structure of the hand wheel and the operating handle of the utility model;

[0024] Figure 7 It is a structural schematic diagram of the operating handle, the connecting block and the arc rod of the utility model.

[0025] In the figure: 1. crushing box; 2. motor; 3. static jaw plate; 4. eccentric shaft; 5. transmission box; 6. moving jaw plate; 7. frame; 8. pull rod; 9. limit ring; 10. spring; 11. shaft seat; 12. adjustment seat; 13. elbow plate; 14. double-sided wedge block; 15. single-sided wedge block; 16. two-way threaded rod; 17. hand wheel; 18. tooth block; 19. bushing; 20. wheel ring; 21. operating handle; 22. first slide groove; 23. guide rail; 24. second slide groove; 25. fixing tube; 26. tooth groove; 27. buckle; 28. mounting groove; 29. ​​rotating groove; 30. arc rod; 31. connecting block; 32. rotating shaft. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0027] like Figure 1-Figure 7 As shown, the utility model provides a stone crushing device for road maintenance, including a crushing box 1 and a motor 2, the motor 2 is electrically connected to an external main controller through a connecting line, an axle seat 11 is fixedly installed on one side of the crushing box 1, a static jaw plate 3 is fixedly installed on one side of the crushing box 1, an eccentric shaft 4 is movably installed near the static jaw plate 3 in the crushing box 1, one end of the eccentric shaft 4 is transmission-connected to the output end of the motor 2 through a transmission box 5, a movable jaw plate 6 is movably installed on the eccentric shaft 4, a frame 7 is also fixedly installed near the movable jaw plate 6 in the crushing box 1, a plurality of pull rods 8 are movably connected between the frame 7 and the movable jaw plate 6, one end of the pull rod 8 passes through the through slot at the lower end of the frame 7 and extends to one side of the frame 7 and is fixedly installed with a limit ring 9, and the pull rod 8 is set between the limit ring 9 and the frame 7 There is a spring 10, an adjustment seat 12 is movably installed in the frame 7, a double-sided wedge 14 is fixedly installed on one side of the adjustment seat 12, and the side of the adjustment seat 12 opposite to the double-sided wedge 14 is movably connected to the movable jaw plate 6 through a toggle plate 13. A first slide groove 22 is opened in the frame 7 near the double-sided wedge 14, and two single-sided wedges 15 are movably installed in the first slide groove 22. A two-way threaded rod 16 is threadedly connected between the two single-sided wedges 15. One end of the two-way threaded rod 16 passes through the frame 7 and is rotatably installed in the shaft seat 11 with the crushing box 1, and the two-way threaded rod 16 located on one side of the shaft seat 11 is also fixedly installed with a handwheel 17, and the handwheel 17 also includes a sleeve 19, a wheel ring 20 is fixedly installed on the outside of the sleeve 19, and an operating handle 21 is movably installed in the wheel ring 20.

[0028] like Figure 2-Figure 3As shown, guide rails 23 are fixedly installed on the top and bottom of the first slide groove 22, and second slide grooves 24 are opened on the top and bottom of the single-sided wedge block 15. The single-sided wedge block 15 is inserted and installed in the first slide groove 22, and the second slide groove 24 is slidably connected to the corresponding guide rails 23. The inclined surface of the single-sided wedge block 15 is in contact with one of the inclined surfaces of the double-sided wedge block 14. By rotating the bidirectional threaded rod 16 in the screw holes in the two single-sided wedge blocks 15, the two single-sided wedge blocks 15 can be synchronously moved relative to each other or moved in the opposite direction in the first slide groove 22, so as to cooperate with the pull rod 8, double-sided wedge block 14, adjustment seat 12, and toggle plate 13 to adjust the crushing distance between the movable jaw plate 6 and the static jaw plate 3.

[0029] like Figure 4-Figure 7 As shown, a fixing tube 25 is fixedly installed on one side of the shaft seat 11, and an annular tooth groove 26 is provided on the inner side of the fixing tube 25. The shaft sleeve 19 is fixedly installed on one end of the bidirectional threaded rod 16. A buckle 27 is also fixedly installed on the side of the shaft sleeve 19 that is away from the bidirectional threaded rod 16. The bidirectional threaded rod 16 is conveniently rotated by the arrangement of the shaft sleeve 19 and the wheel ring 20, and the operating handle 21 is cooperated with. The arrangement of the buckle 27 can limit the foldable and stored operating handle 21. An installation groove 28 is provided in the wheel ring 20, and a rotation groove 29 is provided at the top and the bottom of the installation groove 28. The operating handle 21 is A connecting block 31 is fixedly installed at the end, and a rotating shaft 32 is fixedly installed at the top and bottom of the connecting block 31. An arc rod 30 is also fixedly installed at the operating handle 21 near the connecting block 31, and a tooth block 18 is fixedly installed at the end of the arc rod 30 away from the operating handle 21. The connecting block 31 is rotatably installed in the installation groove 28 through the rotating shaft 32. The arc rod 30 and the tooth block 18 are arranged on the outside of the operating handle 21. After the operating handle 21 is folded and stored, the tooth block 18 is inserted into the corresponding tooth groove 26, which can cooperate with the wheel ring 20 and the shaft sleeve 19 to realize the limitation of the axial movement of the bidirectional threaded rod 16.

[0030] It should be noted that the utility model is a stone crushing device for road maintenance. When crushing stones, the stones can be transported to the crushing box 1 through the conveying device. At this time, the motor 2 drives the eccentric shaft 4 to rotate through the transmission box 5, so that the eccentric shaft 4 rotates in the movable jaw plate 6, so that the movable jaw plate 6 swings back and forth up and down by means of the eccentric principle of the eccentric shaft 4. When the movable jaw plate 6 rises, the angle between the toggle plate 13 and the movable jaw plate 6 becomes larger, pushing the movable jaw plate 6 to approach the static jaw plate 3, and the material is gradually crushed under the multiple effects of squeezing, rubbing, and grinding between the movable jaw plate 6 and the static jaw plate 3. When the movable jaw plate 6 descends, the angle between the toggle plate 13 and the movable jaw plate 6 becomes smaller, and the movable jaw plate 6 leaves the static jaw plate 3 under the action of the pull rod 8, the limit ring 9, and the spring 10, and the crushed material is discharged from the discharge port at the lower part of the jaw cavity in the crushing box 1 under the action of gravity;

[0031] When adjusting the crushing distance between the movable jaw plate 6 and the stationary jaw plate 3, the operating handle 21 can be manually moved to one side, so that the operating handle 21 rotates in the mounting groove 28 with the rotating shaft 32 as the axis, and then the operating handle 21 synchronously drives the arc rod 30 to rotate, so that the tooth block 18 at one end of the arc rod 30 is disengaged from the corresponding tooth groove 26 on the inner side of the fixed tube 25, and the wheel ring 20 can be rotated by the operating handle 21, so that the wheel ring 20 drives the shaft sleeve 19 to rotate, and the shaft sleeve 19 drives the bidirectional threaded rod 16 to rotate, so that the bidirectional threaded rod 16 The two-way threaded rod 16 rotates in the shaft seat 11, and at the same time, the two-way threaded parts on the outer side of the two-way threaded rod 16 rotate in the screw holes in the corresponding single-sided wedge blocks 15, so that the two single-sided wedge blocks 15 move relative to each other or move oppositely in the first slide groove 22, and the movable jaw plate 6 has a certain continuous pulling force in the direction of the frame 7 through the setting of the pull rod 8 and the spring 10, so as to cooperate with the contact surface adjustment of the double-sided wedge block 14 and the single-sided wedge block 15 to realize the displacement of the adjustment seat 12, and then the upper end of the movable jaw plate 6 rotates on the eccentric shaft 4 through the adjustment of the toggle plate 13, and the movable jaw plate The lower end of the movable jaw plate 6 is adjusted to the crushing distance with the static jaw plate 3 by pushing and pulling the toggle plate 13, that is, the relative distance between the static jaw plate 3 and the movable jaw plate 6 is changed, and then the size of the jaw cavity in the crushing box 1 is changed. When the volume of the jaw cavity in the crushing box 1 is reduced, the material is subjected to stronger squeezing and shearing, and the particle size of the crushed stone is smaller. On the contrary, when the volume of the jaw cavity in the crushing box 1 is increased, the degree of crushing of the material is reduced, and the particle size of the crushed stone is larger. When the crushing distance between the movable jaw plate 6 and the static jaw plate 3 is adjusted, the operating handle 21 can be moved with the rotating shaft 32 as the center. The axis rotates toward the buckle 27, so that one end of the operating handle 21 is snapped into the buckle 27, and the operating handle 21 also drives the tooth block 18 at one end of the arc rod 30 to be snapped into the corresponding tooth groove 26, which can limit the axial movement of the entire handwheel 17, thereby limiting the axial movement of the bidirectional threaded rod 16, preventing the bidirectional threaded rod 16 from rotating due to vibration, and further preventing the bidirectional threaded rod 16 from rotating in the single-sided wedge block 15 to cause the single-sided wedge block 15 to move, and further preventing the crushing distance between the movable jaw plate 6 and the static jaw plate 3 from changing.

[0032] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A stone crushing device for road maintenance, characterized in that: The invention comprises a crushing box (1) and a motor (2), wherein the motor (2) is electrically connected to an external main controller via a connecting line, a shaft seat (11) is fixedly installed on one side of the crushing box (1), a static jaw plate (3) is fixedly installed on one side of the crushing box (1), an eccentric shaft (4) is movably installed near the static jaw plate (3) in the crushing box (1), one end of the eccentric shaft (4) is transmission-connected to the output end of the motor (2) via a transmission box (5), a movable jaw plate (6) is movably installed on the eccentric shaft (4), a frame (7) is fixedly installed near the movable jaw plate (6) in the crushing box (1), a plurality of tie rods (8) are movably connected between the frame (7) and the movable jaw plate (6), one end of the tie rod (8) passes through a through slot at the lower end of the frame (7) and extends to one side of the frame (7) and is fixedly installed with a limit ring (9), the tie rod (8) between the limit ring (9) and the frame (7) is sleeved with a spring (10), and the frame ( An adjusting seat (12) is movably installed in the frame (7), a double-sided wedge block (14) is fixedly installed on one side of the adjusting seat (12), and a side of the adjusting seat (12) opposite to the double-sided wedge block (14) is movably connected to the movable jaw plate (6) through a toggle plate (13). A first slide groove (22) is provided in the frame (7) near the double-sided wedge block (14), and two single-sided wedge blocks (15) are movably installed in the first slide groove (22), and a bidirectional threaded rod (16) is threadedly connected between the two single-sided wedge blocks (15), one end of the bidirectional threaded rod (16) passes through the frame (7) and is rotatably installed in the shaft seat (11) with the crushing box (1), and a hand wheel (17) is also fixedly installed on the bidirectional threaded rod (16) located on one side of the shaft seat (11), and the hand wheel (17) also includes a shaft sleeve (19), a wheel ring (20) is fixedly installed on the outer side of the shaft sleeve (19), and an operating handle (21) is movably installed in the wheel ring (20).

2. The stone crushing device for road maintenance according to claim 1, characterized in that: Guide rails (23) are fixedly mounted on the top and bottom of the first sliding groove (22).

3. The stone crushing device for road maintenance according to claim 2, characterized in that: The single-sided wedge block (15) is provided with a second slide groove (24) at the top and the bottom, the single-sided wedge block (15) is inserted and installed in the first slide groove (22), and the second slide groove (24) is slidably connected to the corresponding guide rail (23), and the inclined surface of the single-sided wedge block (15) is in contact with one of the inclined surfaces of the double-sided wedge block (14).

4. The stone crushing device for road maintenance according to claim 1, characterized in that: A fixing tube (25) is fixedly mounted on one side of the shaft seat (11), and an annular tooth groove (26) is formed on the inner side of the fixing tube (25).

5. The stone crushing device for road maintenance according to claim 4, characterized in that: The shaft sleeve (19) is fixedly mounted on one end of the bidirectional threaded rod (16), and a buckle (27) is also fixedly mounted on the side of the shaft sleeve (19) that is away from the bidirectional threaded rod (16).

6. The stone crushing device for road maintenance according to claim 5, characterized in that: A mounting groove (28) is provided in the wheel ring (20), and rotation grooves (29) are provided at the top and the bottom of the mounting groove (28).

7. The stone crushing device for road maintenance according to claim 6, characterized in that: A connecting block (31) is fixedly mounted on one end of the operating handle (21), and a rotating shaft (32) is fixedly mounted on the top and bottom of the connecting block (31). An arc-shaped rod (30) is also fixedly mounted on the operating handle (21) near the connecting block (31), and a tooth block (18) is fixedly mounted on one end of the arc-shaped rod (30) away from the operating handle (21). The connecting block (31) is rotatably mounted in the mounting groove (28) via the rotating shaft (32).

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