Guiding and supporting structure of engineering machinery buffering device

Abstract

The utility model relates to the technical field of engineering machinery, in particular to an engineering machinery buffer device guiding and supporting structure which comprises a beam frame, a threaded lead screw is rotationally connected to the interior of the beam frame through a bearing, a sleeve block is connected to the exterior of the threaded lead screw in a threaded mode, a driving block is welded to the exterior of the sleeve block, and a driving plate is welded to the top of the driving block. When the sleeve block drives the driving block to move, the corrugated pipe B on the right side of the sleeve block is lengthened, the corrugated pipe A on the left side of the sleeve block shrinks, the corrugated pipe A and the corrugated pipe B are both located outside the threaded lead screw, and the two ends of the corrugated pipe A and the two ends of the corrugated pipe B are bonded with a rubber pad A and a rubber pad B for improving the sealing performance correspondingly, so that the sealing performance between the threaded lead screw and the sleeve block is improved. And external dust and other foreign matters are prevented from making contact with the threaded lead screw, so that the service life of the threaded lead screw is prolonged, and pressing treatment on the spring is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of engineering machinery technology, specifically to a guide support structure for a buffer device in engineering machinery. Background Technology

[0002] Construction machinery refers to mechanical equipment used in earthwork construction, road construction and maintenance, mobile lifting and loading operations, and various building projects to achieve comprehensive mechanized construction. These machines are widely used in many fields, including national defense construction projects and transportation construction. When construction machinery generates significant resistance during movement and operation, it forces the guide wheels to move towards the drive wheels. When the resistance exceeds the preload of the spring, the spring is compressed to achieve a buffering function, thereby reducing the impact on structural components and the four wheels and the track.

[0003] Chinese patent application number 202320548046.1 discloses a guide support structure for a buffer device in engineering machinery. The device uses a rotating shaft, an active conical wheel, a driven conical wheel, a rotating rod, a lead screw, a threaded sleeve, a snap-fit ​​plate, and a support frame to work together to facilitate the user in moving the position of the support frame without having to manually push the support frame or compress the buffer spring, thus reducing labor costs.

[0004] However, existing guide support structures for engineering machinery buffer devices utilize active and driven conical wheels to drive the lead screw on one side of the rotating rod. During operation, long-term vibrations can easily cause misalignment between the active and driven conical wheels, preventing effective rotation of the transmission rod. Furthermore, the complex structure increases manufacturing costs and maintenance difficulty. Additionally, external dust and other foreign matter easily adhere to the active and driven conical wheels and the lead screw, causing corrosion and hindering effective compression of the spring. Therefore, a new guide support structure for engineering machinery buffer devices is needed. Utility Model Content

[0005] To address the problems in the background art, this utility model provides a guide support structure for a buffer device in engineering machinery.

[0006] The technical solution adopted by this utility model to solve its technical problem is a guide support structure for an engineering machinery buffer device, including a beam frame. A threaded screw is rotatably connected inside the beam frame via a bearing. A sleeve block is threadedly connected to the outside of the threaded screw, and a drive block is welded to the outside of the sleeve block. A drive plate is welded to the top of the drive block. A drive handle for rotating the threaded screw is inserted into the inside of the beam frame. A bellows A is screwed to the outside of the sleeve block, and the end of the bellows A away from the sleeve block is screwed to the inside of the beam frame. A bellows B is screwed to the end of the sleeve block away from the bellows A, and the end of the bellows B away from the drive block is screwed to the inside of the beam frame. Both bellows A and bellows B are located outside the threaded screw. A rubber pad A is glued to the end of both bellows A and bellows B that contacts the beam frame, and a rubber pad B is glued to the end of both bellows A and bellows B that contacts the sleeve block. When the sleeve block moves the drive block, the bellows B on the right side of the sleeve block extends, while the bellows A on the left side of the sleeve block contracts. Both bellows A and B are located outside the threaded screw, and rubber gaskets A and B are respectively bonded to both ends of bellows A and B to enhance sealing. This improves the sealing between the threaded screw and the sleeve block, preventing external dust and other foreign objects from contacting the threaded screw, thereby extending the service life of the threaded screw.

[0007] By adopting the above technical solution, when the elasticity of the spring weakens, the drive handle inside the beam frame is rotated. Then the drive handle drives the threaded screw inside the beam frame to rotate. Then the sleeve block outside the threaded screw drives the drive block to move, so that the drive block drives the drive plate to move. Then the drive plate contacts the spring and compresses the spring, increasing the elasticity of the spring.

[0008] When the sleeve block moves the drive block, the bellows B on the right side of the sleeve block is stretched, and the bellows A on the left side of the sleeve block is contracted. Both bellows A and B are located outside the threaded screw, and rubber gaskets A and B are respectively bonded to both ends of bellows A and B to increase sealing. This improves the sealing between the threaded screw and the sleeve block, prevents external dust and other foreign objects from contacting the threaded screw, and thus improves the service life of the threaded screw.

[0009] Specifically, a fixing plate is welded to the outside of the beam frame, and a guide cylinder is fixed to the inside of the fixing plate by screws. A support rod is slidably connected to the inside of the guide cylinder, and a spring is sleeved on the outside of the support rod.

[0010] By adopting the above technical solution, the spring outside the support rod can buffer the impact force on the guide cylinder.

[0011] Specifically, a drive plate is welded to one side of the spring, and a connecting plate is screwed to one side of the drive plate. A support plate is welded to the top of the connecting plate and is welded to the top right side of the drive plate.

[0012] By adopting the above technical solution, the connecting plate drives the drive plate to move, so that the drive plate comes into contact with the spring, thereby facilitating the compression of the spring.

[0013] Specifically, the drive arm has an outer surface covered with a serrated sleeve that increases friction.

[0014] By adopting the above technical solution, when the drive handle is rotated, the protruding sleeve on the outside of the drive handle increases the friction on the surface of the drive handle, thereby improving the stability of the drive handle rotation.

[0015] Specifically, a sliding sleeve is welded to the inner side of the sleeve block, and a sliding rod is slidably connected to the inner side of the sliding sleeve.

[0016] By adopting the above technical solution, when the sleeve block moves, the sliding sleeve inside the sleeve block slides outside the sliding rod welded inside the beam frame, which facilitates the limiting treatment of the sleeve block.

[0017] The beneficial effects of this utility model are:

[0018] (1) The guide support structure of the engineering machinery buffer device described in this utility model, when the elasticity of the spring weakens, rotates the drive handle inside the beam frame, and then the drive handle drives the threaded screw inside the beam frame to rotate. Then the sleeve block outside the threaded screw drives the drive block to move, so that the drive block drives the drive plate to move. Then the drive plate contacts the spring, compresses the spring, increases the elasticity of the spring, reduces the number and types of transmission structures, reduces manufacturing costs and maintenance difficulties, and avoids misalignment of the transmission structure.

[0019] (2) The guide support structure of the engineering machinery buffer device described in this utility model, when the sleeve block drives the drive block to move, the bellows B on the right side of the sleeve block is stretched and the bellows A on the left side of the sleeve block is contracted. Both the bellows A and the bellows B are located outside the threaded screw, and rubber pads A and B are respectively bonded to the ends of the bellows A and the bellows B to increase the sealing performance, thereby increasing the sealing performance between the threaded screw and the sleeve block, preventing external dust and other foreign objects from contacting the threaded screw, improving the service life of the threaded screw, and facilitating the spring compression treatment. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is a schematic diagram of the overall structure of the guide support structure of the engineering machinery buffer device according to the present invention;

[0022] Figure 2 This is a schematic diagram of the internal structure of the beam frame of the guide support structure for the buffer device of engineering machinery according to this utility model;

[0023] In the diagram: 1. Fixed plate; 2. Guide cylinder; 3. Spring; 4. Support rod; 5. Beam frame; 6. Support plate; 7. Drive plate; 8. Connecting plate; 9. Protruding sleeve; 10. Drive handle; 11. Sliding sleeve; 12. Rubber pad A; 13. Threaded screw; 14. Sliding rod; 15. Bellows A; 16. Drive block; 17. Sleeve block; 18. Rubber pad B; 19. Bellows B. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] To increase the elasticity of spring 3, as one embodiment of this utility model, such as Figure 1 , Figure 2 As shown, the guide support structure of the engineering machinery buffer device of this utility model includes a beam frame 5. A threaded screw 13 is rotatably connected inside the beam frame 5 via a bearing. A sleeve block 17 is threadedly connected to the outside of the threaded screw 13, and a drive block 16 is welded to the outside of the sleeve block 17. A drive plate 7 is welded to the top of the drive block 16. A drive handle 10 for driving the threaded screw 13 to rotate is inserted into the inside of the beam frame 5. A bellows A15 is screwed to the outside of the sleeve block 17, and the bellows A15 is away from the sleeve block 17. One end of the sleeve 17 is screwed to the inner side of the beam frame 5. The end of the sleeve 17 away from the bellows A15 is screwed to the bellows B19, and the end of the bellows B19 away from the drive block 16 is screwed to the inner side of the beam frame 5. The bellows A15 and the bellows B19 are both located outside the threaded screw 13. The ends of the bellows A15 and the bellows B19 that contact the beam frame 5 are both bonded with rubber pads A12, and the ends of the bellows A15 and the bellows B19 that contact the sleeve 17 are both bonded with rubber pads B18.

[0026] When in use, when the elasticity of spring 3 weakens, the drive handle 10 inside the beam frame 5 is rotated. Then the drive handle 10 drives the threaded screw 13 inside the beam frame 5 to rotate. Then the sleeve block 17 outside the threaded screw 13 drives the drive block 16 to move, so that the drive block 16 drives the drive plate 7 to move. Then the drive plate 7 contacts the spring 3 and compresses the spring 3, increasing the elasticity of the spring 3.

[0027] When the sleeve 17 moves the drive block 16, the bellows B19 on the right side of the sleeve 17 is stretched and the bellows A15 on the left side of the sleeve 17 is contracted. Both the bellows A15 and B19 are located outside the threaded rod 13, and rubber gaskets A12 and B18, which increase the sealing performance, are respectively bonded to both ends of the bellows A15 and B19. This improves the sealing performance between the threaded rod 13 and the sleeve 17, prevents external dust and other foreign objects from contacting the threaded rod 13, and thus improves the service life of the threaded rod 13.

[0028] To cushion the impact force received by the guide cylinder 2, for example, such as Figure 1 As shown, the present invention also includes a fixing plate 1 welded to the outside of the beam frame 5, and a guide cylinder 2 is screwed on the inside of the fixing plate 1. A support rod 4 is slidably connected to the inside of the guide cylinder 2, and a spring 3 is sleeved on the outside of the support rod 4.

[0029] During use, the spring 3 outside the support rod 4 can buffer the impact force on the guide cylinder 2.

[0030] To compress spring 3, for example, such as Figure 1 As shown, the present invention also includes a drive plate 7 welded to one side of the spring 3, and a connecting plate 8 screwed to one side of the drive plate 7. A support plate 6 welded to the top of the connecting plate 8 and the top right side of the drive plate 7 is also welded to it.

[0031] During use, the connecting plate 8 drives the drive plate 7 to move, so that the drive plate 7 contacts the spring 3, which facilitates the compression of the spring 3. The support rod 4 is slidably connected to the drive plate 7 and the support plate 6, and the end of the support rod 4 away from the guide cylinder 2 extends to the outside of the support plate 6.

[0032] To improve the stability of the drive shaft 10 rotation, for example, such as Figure 1 As shown, the present invention also includes a protruding sleeve 9 for increasing friction, which is adhered to the outer surface of the drive handle 10.

[0033] When in use, when the drive handle 10 is rotated, the stud sleeve 9 on the outside of the drive handle 10 increases the friction on the surface of the drive handle 10 and improves the stability of the rotation of the drive handle 10.

[0034] For example, to limit the movement of the sleeve 17, such as... Figure 2 As shown, the present invention also includes a sliding sleeve 11 welded to the inner side of the sleeve block 17, and a sliding rod 14 slidably connected to the inner side of the sliding sleeve 11.

[0035] When in use, as the sleeve 17 moves, the sliding sleeve 11 inside the sleeve 17 slides outside the sliding rod 14 welded inside the beam frame 5, which facilitates the limiting treatment of the sleeve 17.

[0036] In use, when the elasticity of spring 3 weakens, the drive handle 10 inside the beam frame 5 is rotated. The drive handle 10 then drives the threaded screw 13 inside the beam frame 5 to rotate. The sleeve 17 outside the threaded screw 13 then drives the drive block 16 to move, causing the drive block 16 to move the drive plate 7. The drive plate 7 then contacts the spring 3, compressing it and increasing its elasticity. This simplifies the number and types of transmission components, reduces manufacturing costs and maintenance difficulty. Simultaneously, when the sleeve 17 drives the drive block 16 to move... The bellows B19 on the right side of the sleeve 17 is elongated, while the bellows A15 on the left side of the sleeve 17 is contracted. Both bellows A15 and B19 are located outside the threaded rod 13, and rubber gaskets A12 and B18 are respectively bonded to both ends of the bellows A15 and B19 to increase sealing. This improves the sealing between the threaded rod 13 and the sleeve 17, prevents external dust and other foreign objects from contacting the threaded rod 13, thereby increasing the service life of the threaded rod 13 and facilitating the compression treatment of the spring 3.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A guide support structure for a buffer device in engineering machinery, characterized in that, The structure includes a beam frame (5), inside which a threaded screw (13) is rotatably connected via bearings. A sleeve (17) is threadedly connected to the outside of the threaded screw (13), and a drive block (16) is welded to the outside of the sleeve (17). A drive plate (7) is welded to the top of the drive block (16). A drive handle (10) for rotating the threaded screw (13) is inserted into the inside of the beam frame (5). A bellows A (15) is screwed to the outside of the sleeve (17), and the end of the bellows A (15) away from the sleeve (17) is screwed to the inside of the beam frame (5). The end of the sleeve block (17) away from the bellows A (15) is screwed with a bellows B (19), and the end of the bellows B (19) away from the drive block (16) is screwed to the inner side of the beam frame (5). The bellows A (15) and the bellows B (19) are both located outside the threaded screw (13). The ends of the bellows A (15) and the bellows B (19) that contact the beam frame (5) are both bonded with rubber pads A (12). The ends of the bellows A (15) and the bellows B (19) that contact the sleeve block (17) are both bonded with rubber pads B (18).

2. The guide support structure for a buffer device of engineering machinery according to claim 1, characterized in that, The beam frame (5) is welded to the outside with a fixing plate (1), and the fixing plate (1) is fixed to the inside with screws by a guide cylinder (2). The guide cylinder (2) is slidably connected to a support rod (4), and a spring (3) is sleeved on the outside of the support rod (4).

3. The guide support structure for a buffer device in engineering machinery according to claim 2, characterized in that, A drive plate (7) is welded to one side of the spring (3), and a connecting plate (8) is screwed to one side of the drive plate (7). A support plate (6) is welded to the top of the connecting plate (8) and welded to the top right side of the drive plate (7).

4. The guide support structure for a buffer device of engineering machinery according to claim 1, characterized in that, The outer surface of the drive handle (10) is covered with a tack sleeve (9) that increases friction.

5. The guide support structure for a buffer device of engineering machinery according to claim 1, characterized in that, The inner side of the sleeve (17) is welded with a sliding sleeve (11), and a sliding rod (14) is slidably connected to the inner side of the sliding sleeve (11).

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