Novel carrier chain wheel of bulldozer
By adopting assembled structure and anti-detachment device on the bulldozer sprocket, the problem of loosening and high usage costs in harsh environments is solved, and a higher service life and lower maintenance costs are achieved.
Patent Information
- Application Number
- CN202421995685.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-17
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-08-17
AI Technical Summary
Traditional bulldozer sprockets are prone to loosening in harsh environments, resulting in increased wear and short service life. In addition, the integrated structural design makes it necessary to replace the overall sprockets when any guide wheel is damaged, which increases the cost.
A new type of bulldozer sprocket is designed, adopting an assembled structure, which fixes the sprocket shaft by setting up anti-detachment devices and anti-loosening nuts to ensure a firm connection; at the same time, the sprocket body and the sprocket shaft can be detachedly connected, allowing the guide wheel to be replaced separately.
Effectively prevent the support sprocket from loosening, extending the service life, and reducing the cost of the support sprocket by replacing the guide wheel separately.
Smart Images
Figure CN222908927U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of excavator accessories, in particular to a novel bulldozer supporting chain wheel. Background Art
[0002] The carrier wheel is one of the four wheels and one belt of crawler engineering machinery chassis. Its main function is to support the weight of excavators and bulldozers and let the crawler tracks move along the wheels. It is mainly used in various crawler bulldozers, excavators, pavers, milling machines, rotary drilling rigs or other crawler machinery and equipment at home and abroad. The carrier wheel adopts a forged wheel body with high overall strength and long service life. The wheel rim that has been induction hardened will not crack or break even under harsh conditions.
[0003] The prior art has the following deficiencies: the drag chain wheel of a traditional bulldozer is connected and fixed with the opening of an open bracket through an optical axis. Due to the harsh working environment of engineering machinery, in addition to being squeezed by various foreign objects such as gravel, crushed stone, and stones in the soil, it is also subject to the continuous vibration generated when the bulldozer is moving and working, causing the optical axis and the bracket to loosen. After long-term use, it may not only cause the drag chain wheel to loosen, but also aggravate the wear between the sprocket wheel, the bracket and the crawler in a loose state, reducing the service life of the sprocket wheel. In addition, the traditional sprocket wheel is an integrated structural design. When any guide wheel on the sprocket wheel is damaged, the sprocket wheel as a whole cannot be used, and the sprocket wheel needs to be replaced as a whole, thereby increasing the cost of using the sprocket wheel.
[0004] Based on this, the utility model designs a novel bulldozer supporting sprocket to solve the above problems. Utility Model Content
[0005] In order to make the technical problems to be solved, technical solutions and advantages of the present invention more clear, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.
[0006] The specific technical scheme of a novel bulldozer supporting sprocket of the utility model is as follows:
[0007] A novel bulldozer sprocket comprises a sprocket shaft and a sprocket body rotatably connected to one end of the sprocket shaft, a mounting groove is arranged at the other end of the sprocket shaft, an anti-slip device is arranged on the mounting groove, an anti-loosening nut is arranged on the right side of the anti-loosening device and the anti-loosening nut is threadedly connected to the sprocket shaft, and the characteristic is that the anti-loosening device comprises two identical anti-loosening blocks, a through hole is arranged on the sprocket shaft, a screw hole is arranged on the anti-loosening block, the two anti-loosening blocks are rotatably connected to the sprocket shaft through hexagon socket bolts, a slide groove is arranged on the anti-loosening block, a sliding block is arranged on the slide groove, a positioning groove is arranged at the middle end of the sliding block, and the outer side of the positioning groove is toothed and threadedly connected to the side of the hexagon socket bolt.
[0008] Furthermore, a positioning plate is provided on the left side of the sprocket wheel body, the positioning plate is fixedly connected to the sprocket wheel shaft, a first connecting rod is provided on one side of the positioning plate and the first connecting rod is plugged into the sprocket wheel body, a first fixing plate is provided on the right side of the sprocket wheel body, a second connecting rod is provided on one side of the first fixing plate, and a second fixing plate is provided on the right side of the sprocket wheel shaft, connecting nails are provided on the side surfaces of the first fixing plate and the second fixing plate, mounting holes are provided on the side surfaces of the first fixing plate and the second fixing plate, which are threadedly connected to the side mounting holes through screws.
[0009] Furthermore, the first fixing plate and the second fixing plate are both detachably connected to the support sprocket wheel shaft 1 via connecting nails.
[0010] Furthermore, the positioning plates are arranged in parallel, and the first fixing plate and the second fixing plate are arranged in parallel.
[0011] Furthermore, the top of the sliding block is spherical, the end of the sliding block is connected to a spring, and the other end of the spring is connected to the sliding groove.
[0012] Furthermore, the top of the sliding block is flush with the surface of the anti-dropping block, a magnet block is arranged at the end of the sliding block and a magnet block is also arranged at the bottom of the sliding groove.
[0013] The utility model is a novel bulldozer supporting sprocket wheel with the following advantages:
[0014] 1. By setting the anti-drop device and the anti-loosening nut, the sprocket shaft of the sprocket can be firmly fixed on the bracket, which can solve the technical problem of easy looseness between the sprocket and the bracket, making it difficult for the sprocket to fall off from the bracket due to the squeezing of foreign matter in the soil. It has practical significance and promotion value, and is expected to produce good economic benefits.
[0015] 2 By setting the positioning plate, the first connecting rod, the second connecting rod, the first fixing plate, the second fixing plate and the connecting nail, the sprocket body and the sprocket shaft can be detachably connected. Compared with the existing sprocket with an integrated design, the sprocket is an assembled structure design. When any guide wheel is damaged, the guide wheel can be replaced separately, which effectively reduces the use cost of the sprocket. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the structure of the support sprocket of the utility model;
[0017] Figure 2 It is a cross-sectional structural diagram of the support chain wheel of the utility model;
[0018] Figure 3 This is a schematic cross-sectional structure diagram of Example 1 of the utility model;
[0019] Figure 4 This is a schematic cross-sectional structure diagram of Example 2 of the present utility model;
[0020] Figure numerals: 1. sprocket shaft; 2. sprocket body; 3. anti-slip device; 4. anti-loosening nut; 5. positioning plate; 6. first connecting rod; 7. first fixing plate; 8. second fixing plate; 9. connecting nail; 10. second connecting rod; 11. anti-slip block; 12. hexagon socket bolt; 13. screw hole; 14. through hole; 15. sliding block; 16. sliding groove; 17. mounting groove; 18. positioning groove; 19. spring; 20. magnet block. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] In order to better understand the purpose, structure and function of the utility model, a new type of bulldozer supporting sprocket wheel of the utility model is further described in detail below in conjunction with the accompanying drawings.
[0023] like Figure 1-4 A novel bulldozer sprocket wheel comprises a sprocket wheel shaft 1 and a sprocket wheel body 2, wherein the sprocket wheel body 2 is arranged at one end of the sprocket wheel shaft 1 and the axes of the sprocket wheel shaft 1 and the sprocket wheel body 2 coincide, wherein the sprocket wheel body 2 is rotatably connected to the sprocket wheel shaft 1, and a mounting groove 17 is arranged on the other end of the sprocket wheel shaft 1, wherein an anti-slip device 3 is arranged on the mounting groove 17, and a locking nut 4 is arranged on the right side of the anti-slip device 3, and the locking nut 4 is threadedly connected to the sprocket wheel shaft 1, and there are at least two sets of locking nuts 4.
[0024] In the present invention, a positioning plate 5 is provided on the left side of the sprocket wheel body 2, and the positioning plate 5 is arranged in parallel. The positioning plate 5 is used to limit the sprocket wheel body 2, and the positioning plate 5 is fixedly connected to the sprocket wheel shaft 1. A first connecting rod 6 is provided on one side of the positioning plate 5, and the first connecting rod 6 is plugged into the sprocket wheel body 2. The sprocket wheel body 2 is positioned by setting the first connecting rod 6. The sprocket wheel body 2 and the positioning plate 5 are connected through the first connecting rod 6, wherein a first fixing plate 7 is provided on the right side of the sprocket wheel body 2, and a second connecting rod 10 is provided on one side of the first fixing plate 7. The sprocket wheel body 2 and the first fixing plate 7 are connected through the second connecting rod 10. Connection, a second fixing plate 8 is arranged on the right side of the sprocket wheel shaft 1, and connecting nails 9 are arranged on the sides of the first fixing plate 7 and the second fixing plate 8, wherein the first fixing plate 7 and the second fixing plate 8 are detachably connected to the sprocket wheel shaft 1 through the connecting nails 9, and the first fixing plate 7 and the second fixing plate 8 are arranged in parallel. The first fixing plate 7 and the second fixing plate 8 are arranged to facilitate the assembly and disassembly of the sprocket wheel body 2, wherein mounting holes are arranged on the sides of the first fixing plate 7 and the second fixing plate 8, which are threadedly connected to the side mounting holes by screws, so that the first fixing plate 7 and the second fixing plate 8 are respectively fixedly connected to the sprocket wheel shaft 1 and the sprocket wheel body 2.
[0025] In the utility model, the anti-slip device 3 includes two identical anti-slip blocks 11, a through hole 14 is provided on the sprocket wheel shaft 1, and the length direction of the through hole 14 is perpendicular to the length direction of the sprocket wheel shaft 1, a screw hole 13 is provided on the anti-slip block 11, and the screw hole 13 is correspondingly connected to the through hole 14, wherein the two anti-slip blocks 11 are rotatably connected to the sprocket wheel shaft 1 through the hexagon socket bolt 12, and a slide groove 16 is also provided on the anti-slip block 11, and the length direction of the slide groove 16 is perpendicular to the length direction of the screw hole 13, and the slide groove 16 is connected to the screw hole 13, wherein a sliding block 15 is provided on the slide groove 16, and the length of the slide groove 16 is greater than the length of the sliding block 15, and a positioning groove 18 is provided at the middle end of the sliding block 15, and the outer side of the positioning groove 18 is toothed and threadedly connected to the side of the hexagon socket bolt 12.
[0026] Example 1
[0027] In the utility model, a new type of bulldozer sprocket wheel is provided, in which the top of the sliding block 15 is spherical, the end of the sliding block 15 is connected to a spring 19, the other end of the spring 19 is connected to a slide groove 16, and the spring 19 is arranged to press the positioning groove 18, so that the positioning groove 18 is threadedly connected to the hexagon socket bolt 12, wherein the top of the sliding block 15 is spherical, which helps foreign matter to slide off the spherical surface and prevents foreign matter from running into the sliding block 15 and causing damage to the equipment.
[0028] Example 2
[0029] In the utility model, a novel bulldozer sprocket wheel is provided, wherein the top of the sliding block 15 is flush with the surface of the anti-slip block 11, a magnet block 20 is provided at the end of the sliding block 15 and a magnet block 20 is also provided at the bottom of the slide groove 16, and the two magnet blocks 20 of the same level repel each other, so that the positioning groove 18 is threadedly connected with the hexagon socket bolt 12, wherein the top of the sliding block 15 is flush with the surface of the anti-slip block 11, which can prevent the sliding block 15 exposed to the air from contacting with foreign objects, thereby improving the service life of the equipment.
[0030] The working principle of the utility model is as follows: a new type of bulldozer sprocket wheel, the installer connects two anti-slip blocks in the installation groove through hexagonal bolts, the hexagonal bolts pass through the screw holes and the through holes to install the anti-slip device on the sprocket wheel shaft, by pressing the sliding block, the hexagonal bolts are not in contact with the positioning groove, and then when the sliding block is loosened, the hexagonal bolts and the positioning groove are restored to threaded connection, wherein two groups of anti-loosening nuts are connected to the sprocket wheel shaft, one group of anti-loosening nuts moves to the left to clamp the anti-slipping device, and the other group of anti-loosening nuts clamps the sprocket wheel shaft.
[0031] A novel bulldozer sprocket wheel. When the sprocket wheel body needs to be replaced, the maintenance personnel unscrew the screws on the side of the first fixing plate, remove the first fixing plate from one end of the sprocket wheel body, and then remove the sprocket wheel body from the end of the sprocket shaft for replacement. Then the new sprocket wheel body is slid to the end of the sprocket shaft, the positioning plate limits the sprocket wheel body, the first connecting rod is inserted into the sprocket wheel body to form a positioning treatment for the first connecting rod, and then the sprocket wheel body is fixed with screws. The sprocket wheel is designed as an assembled structure. When any guide wheel is damaged, the guide wheel can be replaced separately, which effectively reduces the use cost of the sprocket wheel.
[0032] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present invention.
Claims
1. A novel bulldozer sprocket wheel, comprising a sprocket wheel shaft (1) and a sprocket wheel body (2) rotatably connected to one end of the sprocket wheel shaft (1), a mounting groove (17) is arranged at the other end of the sprocket wheel shaft (1), an anti-slip device (3) is arranged on the mounting groove (17), a locking nut (4) is arranged on the right side of the anti-slip device (3), and the locking nut (4) is threadedly connected to the sprocket wheel shaft (1), characterized in that: The anti-slip device (3) comprises two identical anti-slip blocks (11), a through hole (14) is provided on the sprocket wheel shaft (1), a screw hole (13) is provided on the anti-slip block (11), the two anti-slip blocks (11) are rotatably connected to the sprocket wheel shaft (1) through a hexagon socket bolt (12), a slide groove (16) is provided on the anti-slip block (11), a sliding block (15) is provided on the slide groove (16), a positioning groove (18) is provided at the middle end of the sliding block (15), and the outer side of the positioning groove (18) is toothed and threadedly connected to the side of the hexagon socket bolt (12).
2. A novel bulldozer carrier sprocket according to claim 1, characterized in that: A positioning plate (5) is arranged on the left side of the sprocket wheel body (2), the positioning plate (5) is fixedly connected to the sprocket wheel shaft (1), a first connecting rod (6) is arranged on one side of the positioning plate (5), and the first connecting rod (6) is plugged into the sprocket wheel body (2), a first fixing plate (7) is arranged on the right side of the sprocket wheel body (2), a second connecting rod (10) is arranged on one side of the first fixing plate (7), a second fixing plate (8) is arranged on the right side of the sprocket wheel shaft (1), connecting nails (9) are arranged on the side surfaces of the first fixing plate (7) and the second fixing plate (8), mounting holes are arranged on the side surfaces of the first fixing plate (7) and the second fixing plate (8), and are threadedly connected to the side mounting holes by screws.
3. A novel bulldozer carrier sprocket according to claim 2, characterized in that: The first fixing plate (7) and the second fixing plate (8) are both detachably connected to the sprocket wheel shaft (1) via connecting pins (9).
4. A novel bulldozer carrier sprocket according to claim 2, characterized in that: The positioning plates (5) are arranged in parallel, and the first fixing plate (7) and the second fixing plate (8) are arranged in parallel.
5. A novel bulldozer carrier sprocket according to claim 4, characterized in that: The top end of the sliding block (15) is spherical, the end of the sliding block (15) is connected to a spring (19), and the other end of the spring (19) is connected to the sliding groove (16).
6. A novel bulldozer carrier sprocket according to claim 4, characterized in that: The top of the sliding block (15) is flush with the surface of the anti-dropping block (11), a magnet block (20) is arranged at the end of the sliding block (15), and a magnet block (20) is also arranged at the bottom of the sliding groove (16).