Overload protector of stone burying machine

Abstract

The utility model provides a stone burying machine overload protector which comprises a protector body and a front shell, the front shell is located on one side of the protector body, and the circumferential side of the protector body is fixedly connected with a first positioning ring. The utility model relates to the technical field of overload protectors. Through the arrangement of the positioning mechanism, when the front shell needs to be opened for overhauling, the twisting block is rotated to drive the traction rod and the traction block to rotate around the bearing, the transmission rod can rotate synchronously with the twisting block, and meanwhile, the transmission rod can make contact with the extrusion block while rotating and is affected by extrusion, so that the front shell is not damaged. The two extrusion blocks move towards the sides far away from each other and drive a connecting rod and a linkage block to move towards the side close to a spring at the same time, the linkage block drives a positioning rod to leave the interior of a positioning hole, limitation on a fixing block can be relieved, at the moment, the front shell is pulled towards the side far away from the protector body, and the front shell is separated from the protector body; therefore, the inside of the protector body can be overhauled.

Description

Technical Field

[0001] This utility model relates to the technical field of overload protectors, specifically an overload protector for a stone burying machine. Background Technology

[0002] Overload protectors are commonly referred to as: torque retainers, overload protectors, torque clutches, torque limiters, axial load overload protectors, torque limiters, safety clutches, safety couplings, force-limiting clutches, clutch force limiters, ball clutches, and friction clutches. They are often installed between the driving and driven sides of a power transmission system. When an overload fault occurs (torque exceeds a set value), the torque limiter disengages, effectively protecting the drive machinery and the load. Common types include friction-type torque limiters and ball-type torque limiters. Overload protectors are also installed in stone-laying machines to prevent overload faults.

[0003] However, the above-mentioned device still has the following problems during implementation:

[0004] Because the overload protector on the stone-burying machine is connected to the ridging blade, which needs to be started for a long time to turn the soil, the shear pin inside the overload protector is prone to wear and needs to be inspected regularly. The front shell of the overload protector is fixed by bolts, and tools are needed to separate the front shell to inspect the inside of the overload protector. Moreover, if the bolt surface is worn, it is difficult to open, which is not conducive to the regular maintenance of the overload protector. Utility Model Content

[0005] The purpose of this invention is to provide an overload protector for a stone-burying machine to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An overload protector for a rock-burying machine includes a protector body and a front shell. The front shell is located on one side of the protector body. A first positioning ring is fixedly connected to the circumferential side of the protector body. A second positioning ring is fixedly installed on the circumferential side of the front shell. A docking block is fixedly connected to the top and bottom of the first positioning ring. A fixing block is fixedly connected to the top and bottom of the second positioning ring. A locking block is fixedly connected to one side of the docking block. A locking groove for cooperating with the locking block is opened on one side of the fixing block. A positioning mechanism is provided inside the fixing block.

[0008] The positioning mechanism includes two linkage blocks disposed inside the fixed block. A positioning rod is fixedly connected to one side of each linkage block that is close to each other. One end of the positioning rod passes through the inside of the slot. Positioning holes for cooperating with the positioning rod are opened on both sides of the slot. A driving mechanism is provided on one side of the positioning rod.

[0009] A stabilizing mechanism is fixedly disposed on one side of the first positioning ring.

[0010] Preferably, the driving mechanism includes a screwing block disposed on one side of the docking block, a traction rod fixedly connected to one side of the screwing block, one end of the traction rod penetrating into the interior of the fixed block and fixedly connected to the traction block, two transmission rods fixedly connected to one side of the traction block, two pressing blocks disposed inside the fixed block, a connecting rod fixedly connected to one side of the pressing block, and one end of the connecting rod fixedly connected to one side of the linkage block.

[0011] Preferably, the stabilizing mechanism includes four stabilizing blocks fixedly connected to one side of the first positioning ring, a stabilizing groove for cooperating with the stabilizing blocks is provided on one side of the second positioning ring, a protrusion is fixedly connected to the outer surface of the stabilizing block, and a groove for cooperating with the protrusion is provided on the inner wall of the stabilizing groove.

[0012] Preferably, the surface of the traction rod is fitted with a bearing, and one side of the twisting block is rotatably connected to one side of the fixed block through the bearing.

[0013] Preferably, a spring is fixedly connected to one side of the linkage block, and one end of the spring is fixedly connected to the inner wall of the fixed block.

[0014] Preferably, the top and bottom of the linkage block are fixedly connected to sliding blocks, and the inner wall of the fixed block is provided with a sliding groove that cooperates with the sliding block.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model, by setting a positioning mechanism, allows the front cover to be opened for maintenance when necessary. By rotating the turning block, the traction rod and the traction block rotate around the bearing. The transmission rod will rotate synchronously with the turning block. At the same time, as the transmission rod rotates, it will come into contact with the pressing block. Under the influence of the pressing, the two pressing blocks will move to the side away from each other, and at the same time, the connecting rod and the linkage block will move to the side closer to the spring. The linkage block will drive the positioning rod to leave the interior of the positioning hole, thereby releasing the restriction on the fixing block. At this time, the front cover can be pulled to the side away from the protector body to separate the front cover from the protector body, so that maintenance can be carried out inside the protector body.

[0017] 2. By setting up a driving mechanism, this utility model can drive the traction rod and the traction block to rotate around the bearing by twisting the block. The transmission rod will rotate synchronously and contact the extrusion block. Under the influence of extrusion, the two extrusion blocks will move to the side away from each other, thereby causing the positioning rod to leave the interior of the positioning hole, which facilitates the driving function.

[0018] 3. By setting up a stabilizing mechanism, this utility model can push the front shell to move closer to the protector body, while the stabilizing block and protrusion will also enter the stabilizing groove and recess accordingly, which will strengthen the stability of the front shell and the side of the protector body, thereby improving the stability of the front shell after installation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0020] Figure 2 This utility model Figure 2 A magnified view of a section at point A in the middle;

[0021] Figure 3 This is a perspective view of the protector body of this utility model;

[0022] Figure 4 This is a perspective view of the docking block of this utility model;

[0023] Figure 5 This is a perspective view of the fixing block of this utility model in cross-section;

[0024] Figure 6 This is an exploded perspective view of the positioning mechanism and the driving mechanism of this utility model.

[0025] In the diagram: 1. Protector body; 2. Front shell; 3. First positioning ring; 4. Second positioning ring; 5. Docking block; 6. Fixing block; 7. Locking block; 8. Locking groove; 9. Linkage block; 10. Positioning rod; 11. Positioning hole; 12. Tightening block; 13. Traction rod; 14. Traction block; 15. Transmission rod; 16. Pressing block; 17. Connecting rod; 18. Stabilizing block; 19. Stabilizing groove; 20. Protrusion; 21. Groove; 22. Bearing; 23. Spring; 24. Sliding block; 25. Slide groove. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1 - Figure 6 The present invention provides the following technical solution:

[0028] Example 1:

[0029] The overload protector for the stone burying machine includes a protector body 1 and a front shell 2. The front shell 2 is located on one side of the protector body 1. A first positioning ring 3 is fixedly connected to the circumferential side of the protector body 1. A second positioning ring 4 is fixedly installed on the circumferential side of the front shell 2. A docking block 5 is fixedly connected to the top and bottom of the first positioning ring 3. A fixing block 6 is fixedly connected to the top and bottom of the second positioning ring 4. A locking block 7 is fixedly connected to one side of the docking block 5. A slot 8 that cooperates with the locking block 7 is opened on one side of the fixing block 6. A positioning mechanism is provided inside the fixing block 6.

[0030] The positioning mechanism includes two linkage blocks 9 disposed inside the fixed block 6. A positioning rod 10 is fixedly connected to one side of the two linkage blocks 9 that are close to each other. One end of the positioning rod 10 passes through the inside of the slot 8. Positioning holes 11 that cooperate with the positioning rod 10 are opened on both sides of the slot 7. A driving mechanism is provided on one side of the positioning rod 10.

[0031] A stabilizing mechanism is fixedly installed on one side of the first positioning ring 3.

[0032] In this embodiment, considering that the front shell 6 of the overload protector is fixed by bolts, tools are needed to separate the front shell 6 during maintenance to inspect the inside of the overload protector. Furthermore, if the bolt surface is worn, it is difficult to open, which is not conducive to the regular maintenance of the overload protector. Therefore, by setting a positioning mechanism, when it is necessary to open the front shell 6 for maintenance, the rotating block 12 is used to drive the traction rod 13 and traction block 14 to rotate around the bearing 22. The transmission rod 15 will rotate synchronously with the rotating block 12. At the same time, as the transmission rod 15 rotates, it will come into contact with the pressing block 16. Under the influence of the pressing, the two pressing blocks 16 will move to the side away from each other, and at the same time, the connecting rod 17 and the linkage block 9 will move to the side closer to the spring 23. The linkage block 9 will drive the positioning rod 10 away from the inside of the positioning hole 11, thereby releasing the restriction on the fixing block 6. At this time, the front shell 6 is pulled to the side away from the protector body 1, separating the front shell 6 from the protector body 1, so that the inside of the protector body 1 can be inspected.

[0033] During installation, by aligning the positions of the locking block 7 and the locking slot 8, push the front shell 6 towards the side closer to the protector body 1. This will cause the front shell 6 to move the fixing block 6, allowing the locking block 7 to enter the corresponding locking slot 8. Then, release the screwing block 12. The elastic force generated by the spring 23 will push the linkage block 9 and the positioning rod 10 away from the spring 23, allowing the positioning rod 10 to enter the positioning hole 11, thus completing the positioning of the fixing block 6 and completing the installation of the front shell 6.

[0034] The drive mechanism includes a screwing block 12 disposed on one side of the docking block 5. A traction rod 13 is fixedly connected to one side of the screwing block 12. One end of the traction rod 13 passes through the interior of the fixed block 6 and is fixedly connected to a traction block 14. Two transmission rods 15 are fixedly connected to one side of the traction block 14. Two pressing blocks 16 are disposed inside the fixed block 6. A connecting rod 17 is fixedly connected to one side of the pressing block 16. One end of the connecting rod 17 is fixedly connected to one side of the linkage block 9.

[0035] In this embodiment, by setting a driving mechanism, the traction rod 13 and traction block 14 can be driven to rotate around the bearing 22 by twisting the block 12. The transmission rod 15 will rotate synchronously and contact the pressing block 16. Under the influence of the pressing, the two pressing blocks 16 will move to the side away from each other, thereby causing the positioning rod 10 to leave the interior of the positioning hole 11, which facilitates the driving function.

[0036] A bearing 22 is fitted on the surface of the traction rod 13, and one side of the rotating block 12 is rotatably connected to one side of the fixed block 6 through the bearing 22.

[0037] In this embodiment, by setting the bearing 22, the structure such as the twisting block 12 can be supported, while restricting it to rotate only around the bearing 22, thereby improving the smoothness of its rotation process.

[0038] A spring 23 is fixedly connected to one side of the linkage block 9, and one end of the spring 23 is fixedly connected to the inner wall of the fixed block 6.

[0039] In this embodiment, by setting a spring 23, when the screwing block 12 is loosened, the elastic force generated by the spring 23 pushes the linkage block 9 and the positioning rod 10 to move, so that the positioning rod 10 enters the positioning hole 11, which plays a role in resetting.

[0040] The top and bottom of the linkage block 9 are fixedly connected to the sliding block 24, and the inner wall of the fixed block 6 is provided with a groove 25 that cooperates with the sliding block 24.

[0041] In this embodiment, by setting the sliding block 24 and the slide groove 25, the movement trajectory of the linkage block 9 and other structures can be restricted, so that they can only move horizontally along the trajectory of the slide groove 25, while limiting their stability during the movement process.

[0042] Example 2:

[0043] Based on Embodiment 1, the positioning mechanism and driving mechanism in this embodiment can facilitate the maintenance of the overload protector, but the stability of the front shell 6 after installation is neglected. In this application, the stabilizing mechanism includes four stabilizing blocks 18 fixedly connected to one side of the first positioning ring 3. A stabilizing groove 19 that cooperates with the stabilizing blocks 18 is opened on one side of the second positioning ring 4. A protrusion 20 is fixedly connected to the outer surface of the stabilizing block 18, and a groove 21 that cooperates with the protrusion 20 is opened on the inner wall of the stabilizing groove 19.

[0044] In this embodiment, the positioning mechanism and the driving mechanism are taken into account, which can facilitate the maintenance of the overload protector. However, the stability of the front shell 6 after installation is ignored. Therefore, by setting a stabilizing mechanism, while pushing the front shell 6 to move closer to the protector body 1, the stabilizing block 18 and the protrusion 20 will also enter the stabilizing groove 19 and the recess 21 respectively, which will strengthen the stability of the front shell 6 and the side of the protector body 1, thereby improving the stability of the front shell 6 after installation.

[0045] Working principle: When the front shell 6 needs to be opened for maintenance, by rotating the twisting block 12, the traction rod 13 and the traction block 14 will rotate around the bearing 22. The transmission rod 15 will rotate synchronously with the twisting block 12. At the same time, as the transmission rod 15 rotates, it will come into contact with the pressing block 16. Under the influence of the pressing, the two pressing blocks 16 will move to the side away from each other, and at the same time drive the connecting rod 17 and the linkage block 9 to move closer to the spring 23. The linkage block 9 will drive the positioning rod 10 away from the inside of the positioning hole 11, thus releasing the restriction on the fixing block 6. At this time, the front shell 6 is pulled away from the protector body 1, separating the front shell 6 from the protector body 1, so that maintenance can be carried out inside the protector body 1.

[0046] During installation, by aligning the positions of the locking block 7 and the slot 8, push the front shell 6 towards the side closer to the protector body 1. This will cause the front shell 6 to move the fixing block 6, allowing the locking block 7 to enter the corresponding slot 8. Then, release the screwing block 12. The elastic force generated by the spring 23 will push the linkage block 9 and the positioning rod 10 away from the spring 23, allowing the positioning rod 10 to enter the positioning hole 11, thus completing the positioning of the fixing block 6 and completing the installation of the front shell 6.

[0047] As the front shell 6 is pushed to move closer to the protector body 1, the stabilizing block 18 and the protrusion 20 will also enter the stabilizing groove 19 and the recess 21 respectively, strengthening the stability of the front shell 6 and the side of the protector body 1, thereby improving the stability of the front shell 6 after installation.

[0048] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A buried stone machine overload protector, comprising a protector body (1) and a front shell (2) located on one side of the protector body (1), characterized in that: The circumference side of the protector body (1) is fixedly connected with a first positioning ring (3), the circumference side of the front shell (2) is fixedly installed with a second positioning ring (4), the top and bottom of the first positioning ring (3) are fixedly connected with butt blocks (5), the top and bottom of the second positioning ring (4) are fixedly connected with fixed blocks (6), one side of the butt block (5) is fixedly connected with a clamping block (7), one side of the fixed block (6) is provided with a clamping groove (8) matched with the clamping block (7), and the inside of the fixed block (6) is provided with a positioning mechanism. The positioning mechanism comprises two linkage blocks (9) arranged in the inside of the fixed block (6), and the side, close to each other, of the two linkage blocks (9) is fixedly connected with a positioning rod (10), one end of the positioning rod (10) penetrates into the inside of the clamping groove (8), the two sides of the clamping block (7) are provided with positioning holes (11) matched with the positioning rod (10), and one side of the positioning rod (10) is provided with a driving mechanism. A stabilizing mechanism is fixedly arranged on one side of the first positioning ring (3).

2. The buried-stone overload protector according to claim 1, characterized in that: The driving mechanism comprises a twisting block (12) arranged on one side of the butt block (5), one side of the twisting block (12) is fixedly connected with a traction rod (13), one end of the traction rod (13) penetrates into the inside of the fixed block (6) and is fixedly connected with a traction block (14), one side of the traction block (14) is fixedly connected with two transmission rods (15), the inside of the fixed block (6) is provided with two extrusion blocks (16), one side of the extrusion block (16) is fixedly connected with a connecting rod (17), and one end of the connecting rod (17) is fixedly connected with one side of the linkage block (9).

3. The stone bur overloader protector of claim 1, wherein: The stabilizing mechanism comprises four stabilizing blocks (18) fixedly connected on one side of the first positioning ring (3), one side of the second positioning ring (4) is provided with a stabilizing groove (19) matched with the stabilizing block (18), the outer surface of the stabilizing block (18) is fixedly connected with a convex block (20), and the inner wall of the stabilizing groove (19) is provided with a groove (21) matched with the convex block (20).

4. The buried-stone overload protector according to claim 2, characterized in that: The surface of the traction rod (13) is sleeved with a bearing (22), and one side of the twisting block (12) is rotatably connected with one side of the fixed block (6) through the bearing (22).

5. The buried-stone overload protector of claim 1, wherein: One side of the linkage block (9) is fixedly connected with a spring (23), and one end of the spring (23) is fixedly connected with the inner wall of the fixed block (6).

6. The stone bur overloader protector of claim 1, wherein: The top and bottom of the linkage block (9) are fixedly connected with sliding blocks (24), and the inner wall of the fixed block (6) is provided with sliding grooves (25) matched with the sliding blocks (24). The top and bottom of the linkage block (9) are fixedly connected with sliding blocks (24), and the inner wall of the fixed block (6) is provided with sliding grooves (25) matched with the sliding blocks (24).

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