Clamping structure for main shaft of engineering vehicle
By designing a clamping structure including threaded rods and guide rods, the problem of inconvenient adjustment of the spindle clamping device of engineering vehicles in the prior art is solved, and stable clamping and adaptation of different models of shaft bodies is achieved, which improves the Stability of clamping.
Patent Information
- Application Number
- CN202420893692.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-28
- Publication Date
- 2024-12-17
- Estimated Expiration
- Not applicable · inactive patent
Smart Images
Figure CN222177450U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of main shaft assembly of engineering vehicles, in particular to a clamping structure for the main shaft of an engineering vehicle. Background Art
[0002] The main shaft of an engineering vehicle refers to the shaft that drives the front and rear wheels of the vehicle. It has the important functions of bearing the weight of the vehicle, transmitting driving force and torque. The main shaft is usually made of high-strength alloy steel or cast iron, and has sufficient strength and rigidity to cope with loads and impacts under various working conditions. The main shaft is connected to the vehicle chassis through bearings, allowing the vehicle to run smoothly.
[0003] In the prior art, in the process of assembling the main shaft of an engineering vehicle onto the bottom plate of the engineering vehicle, the main shaft of the vehicle needs to be stably clamped, and different types of shafts have different diameters. The clamping parts inside the clamping device are not convenient for flexible adjustment, which affects the adaptability of the clamping of shafts of different diameters and affects the stability of the clamping. Utility Model Content
[0004] The purpose of the utility model is to solve the problem in the prior art that different types of shaft diameters are different, the clamping parts inside the clamping device are not convenient for flexible adjustment, which affects the adaptability of clamping shafts of different types of diameters and affects the stability of clamping, and a clamping structure for the main shaft of an engineering vehicle is proposed.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A clamping structure for an engineering vehicle main shaft comprises a base, a support base and a cylinder, wherein the support base is fixedly connected to the upper surface of the base, the cylinder is fixedly connected to the upper surface of the support base, a plurality of clamping blocks are arranged around the inside of the cylinder, a plurality of clamping blocks are rotatably connected to threaded rods on opposite sides thereof, a plurality of threaded rings are fixedly connected around the inside of the cylinder, a plurality of threaded rods are respectively threadedly connected to the inside of a plurality of threaded rings, and a plurality of threaded rods are fixedly connected to the ends thereof away from the clamping blocks with rotating handles.
[0007] Preferably, the edges of the plurality of clamping blocks are respectively provided with rounded corners, the inner walls of the plurality of clamping blocks are arranged as arc surfaces, and balls are respectively arranged inside the plurality of clamping blocks for rolling.
[0008] Preferably, a plurality of connecting blocks are fixedly connected to the side walls of the clamping blocks, a plurality of guide rods are fixedly connected to the side walls of the connecting blocks, a plurality of guide holes are opened around the interior of the cylinder, and the plurality of guide rods are slidably arranged on the inner walls of the plurality of guide holes.
[0009] Preferably, the rod walls of the plurality of guide rods at one end away from the connecting block extend to the outside of the cylinder respectively and are fixedly connected with a stopper respectively.
[0010] Preferably, the inner wall of the cylinder located in the guide hole is fixedly connected with a wear-resistant guide ring, the rod wall of the guide rod is slidably arranged on the inner wall of the wear-resistant guide ring, and a plurality of scale lines are arranged on the rod wall of the guide rod.
[0011] Preferably, a universal wheel is fixedly connected to the bottom of the base.
[0012] Compared with the prior art, the utility model provides a clamping structure for a main shaft of an engineering vehicle, which has the following beneficial effects:
[0013] 1. The clamping structure for the main shaft of the engineering vehicle drives the threaded rod along the inside of the threaded ring and the drill hole by rotating the handle, and drives the clamping block to move. By adjusting the gap between multiple clamping blocks, the main shafts of engineering vehicles of different sizes can be stably clamped. When the clamping block moves, the guide rod slides along the inside of the guide hole, which can ensure the stability of the clamping block when it moves.
[0014] 2. The clamping structure of the main shaft of the engineering vehicle can reduce the loss of the guide rod through the wear-resistant guide ring, the block limits the guide rod, and the scale line can observe the position of the guide rod more clearly, which can make the clamping more stable. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the structure of a clamping structure for a main shaft of an engineering vehicle proposed by the utility model;
[0016] Figure 2 for Figure 1 A schematic diagram of the structure of the local A part;
[0017] Figure 3 for Figure 2 Structural stereogram of the middle clamping block.
[0018] In the figure: 1 base, 2 support seat, 3 cylinder, 4 universal wheel, 5 clamping block, 6 threaded rod, 7 threaded ring, 8 turning handle, 9 ball bearing, 10 connecting block, 11 guide rod, 12 stopper, 13 wear-resistant guide ring, 14 scale line. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0020] Reference Figure 1-3A clamping structure for a main shaft of an engineering vehicle comprises a base 1, a support base 2 and a cylinder 3. The support base 2 is fixedly connected to the upper surface of the base 1, the cylinder 3 is fixedly connected to the upper surface of the support base 2, a plurality of clamping blocks 5 are arranged around the inside of the cylinder 3, threaded rods 6 are rotatably connected to the opposite sides of the plurality of clamping blocks 5, a plurality of threaded rings 7 are fixedly connected around the inside of the cylinder 3, a plurality of threaded rods 6 are respectively threadedly connected to the inside of the plurality of threaded rings 7, a plurality of threaded rods 6 are respectively fixedly connected to the inside of the plurality of threaded rings 7, a plurality of threaded rods 6 are respectively fixedly connected to the ends of the plurality of threaded rods 6 away from the clamping blocks 5, and a universal wheel 4 is fixedly connected to the bottom of the base 1.
[0021] The edges of the plurality of clamping blocks 5 are respectively provided with rounded corners, the inner walls of the plurality of clamping blocks 5 are arranged as arc surfaces, and balls 9 are respectively arranged inside the plurality of clamping blocks 5 for rolling.
[0022] The side walls of the clamping blocks 5 are fixedly connected with connecting blocks 10, and the side walls of the connecting blocks 10 are fixedly connected with guide rods 11. The cylinder 3 is surrounded by a plurality of guide holes, and the guide rods 11 are slidably arranged on the inner walls of the plurality of guide holes.
[0023] When in use, the threaded rod 6 can be driven by rotating the handle 8 along the inside of the threaded ring 7 and the drill hole, which can drive the clamping block 5 to move. By adjusting the gaps between the multiple clamping blocks 5, the main shafts of engineering vehicles of different sizes can be stably clamped. When the clamping block 5 moves, the guide rod 11 slides along the inside of the guide hole, which can ensure the stability of the clamping block 5 when moving. The ball 9 can reduce the friction between the main shaft of the engineering vehicle and the clamping block 5. The universal wheel 4 facilitates the adjustment of the base 1.
[0024] In order to make the clamping more stable, Figure 1-3 As shown, the rod walls of multiple guide rods 11 at one end away from the connecting block 10 extend to the outside of the cylinder 3 and are fixedly connected with a stopper 12 respectively. The inner wall of the cylinder 3 located in the guide hole is fixedly connected with a wear-resistant guide ring 13. The rod wall of the guide rod 11 is slidably set on the inner wall of the wear-resistant guide ring 13, and a plurality of scale lines 14 are provided on the rod wall of the guide rod 11.
[0025] The wear-resistant guide ring 13 can reduce the loss of the guide rod 11, the stopper 12 can limit the guide rod 11, and the scale line 14 can more clearly observe the position of the guide rod 11, which can make the clamping more stable.
[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A clamping structure for a main shaft of an engineering vehicle, comprising a base (1), a support seat (2) and a cylinder (3), characterized in that: The support seat (2) is fixedly connected to the upper surface of the base (1); the cylinder (3) is fixedly connected to the upper surface of the support seat (2); a plurality of clamping blocks (5) are arranged around the inside of the cylinder (3); the sides of the plurality of clamping blocks (5) facing away from each other are rotatably connected to threaded rods (6); a plurality of threaded rings (7) are fixedly connected around the inside of the cylinder (3); the plurality of threaded rods (6) are respectively threadedly connected to the inside of the plurality of threaded rings (7); and the ends of the plurality of threaded rods (6) facing away from the clamping blocks (5) are respectively fixedly connected to rotating handles (8).
2. The clamping structure for a main shaft of an engineering vehicle according to claim 1, characterized in that: The edges of the plurality of clamping blocks (5) are respectively provided with rounded corners, the inner walls of the plurality of clamping blocks (5) are arranged as arc surfaces, and balls (9) are respectively arranged inside the plurality of clamping blocks (5) for rolling.
3. The clamping structure for a main shaft of an engineering vehicle according to claim 1, characterized in that: The side walls of the plurality of clamping blocks (5) are respectively fixedly connected with connecting blocks (10), the side walls of the plurality of connecting blocks (10) are respectively fixedly connected with guide rods (11), the interior of the cylinder (3) is surrounded by a plurality of guide holes, and the plurality of guide rods (11) are respectively slidably arranged on the inner walls of the plurality of guide holes.
4. The clamping structure for a main shaft of an engineering vehicle according to claim 3, characterized in that: The rod walls of the plurality of guide rods (11) at one end facing away from the connection block (10) respectively extend to the outside of the cylinder (3) and are respectively fixedly connected to a stopper (12).
5. The clamping structure for a main shaft of an engineering vehicle according to claim 3, characterized in that: The inner wall of the cylinder (3) located in the guide hole is fixedly connected with a wear-resistant guide ring (13), the rod wall of the guide rod (11) is slidably arranged on the inner wall of the wear-resistant guide ring (13), and a plurality of scale lines (14) are arranged on the rod wall of the guide rod (11).
6. The clamping structure for a main shaft of an engineering vehicle according to claim 1, characterized in that: A universal wheel (4) is fixedly connected to the bottom of the base (1).