A bulldozer roll-over prevention device
By installing angle and height adjustment structures on bulldozers, the problem of the inability to adjust existing anti-rollover structures has been solved, achieving multi-angle support and height adaptation, thus improving the anti-rollover effect and operational safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINING XINYUNDA MACHINERY EQUIPMENT MANUFACTURING CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-06-26
AI Technical Summary
The existing anti-rollover structure of bulldozers cannot be adjusted in angle and height, and cannot adapt to different working postures and terrain conditions, resulting in the loss of anti-rollover function under certain working conditions.
The device employs angle and height adjustment structures, including components such as servo motors, hydraulic cylinders, damping spring rods, and auxiliary wheels, to achieve angle and height adjustment of the bulldozer anti-rollover device, enhancing the device's applicability and stability.
The bulldozer anti-rollover device features multi-angle support and height adjustment, improving its anti-rollover capability, ease of use, and safety, while also enhancing its fixation strength and durability.
Smart Images
Figure CN224412663U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of engineering machinery safety protection technology, specifically, it relates to a bulldozer anti-rollover device. Background Technology
[0002] Bulldozers, widely used in construction, mining, and water conservancy, often operate in complex terrains and harsh environments, such as slopes and uneven ground. Under these conditions, bulldozers are prone to rollover accidents due to factors such as shifted center of gravity and insufficient ground traction.
[0003] A side-tipping unloading machine anti-tipping device, with announcement number CN221875833U, effectively solves the problem that traditional anti-tipping barriers cannot limit the movement of cargo vehicles of different sizes. It includes a side-tipping loading platform, characterized in that multiple anti-tipping barriers are installed on one side of the platform. One side of the platform has an installation groove, one side of which has a snap-fit groove, and one side of which has a through groove. A baffle is fixed to the other side of the platform. This invention has a clever structure and is easy to use. Through the use of snap-fit blocks, protrusions, and insert plates, the anti-tipping barriers can be disassembled and their positions adjusted by the limiting action of the snap-fit blocks and protrusions. Through the use of spring rods and compression springs, when the insert plate is not yet inserted into the slot, the snap-fit blocks and protrusions remain inside the slot under the action of the compression springs, preventing them from slipping under gravity.
[0004] However, the aforementioned patents also have the following problems: The anti-rollover structure is typically installed vertically on both sides of the bulldozer's boom. While this installation method is relatively simple, it reveals many problems in actual use. Firstly, because the angle cannot be adjusted, it is difficult to fully adapt to the bulldozer's support needs under different operating postures and terrain conditions. Secondly, the anti-rollover structure cannot be adjusted in height according to the bulldozer's height. When the bulldozer is digging or pushing at different depths, its height changes, and the fixed-height anti-rollover structure cannot adapt to these changes in time. This means that under certain operating conditions, the anti-rollover structure may not be in effective contact with the ground, thus losing its anti-rollover function.
[0005] In view of this, this utility model is proposed. Utility Model Content
[0006] To solve the aforementioned technical problem of the inability to adjust the angle of the anti-rollover structure, the basic concept of the technical solution adopted by this utility model is as follows:
[0007] A bulldozer anti-rollover device, comprising:
[0008] The first fixing plate is installed on both sides of the bulldozer.
[0009] An angle adjustment structure includes a first adjustment part and a second adjustment part. The first adjustment part includes a second limiting frame plate disposed outside a first fixed plate. A servo motor is fixedly installed on one outer wall of the second limiting frame plate. A rotating shaft is rotatably installed inside the second limiting frame plate. The output shaft of the servo motor is fixedly connected to one end of the rotating shaft through a coupling. The second adjustment part includes a third connecting plate fixedly installed on one outer wall of the first fixed plate. A second connecting plate is fixedly installed on one outer wall of the third connecting plate. A fixing sleeve is fixedly installed on the outer wall of the second connecting plate. The inner wall of the fixing sleeve is fixedly connected to the outer wall of the rotating shaft.
[0010] In a preferred embodiment of the present invention, a first hydraulic cylinder is fixedly installed on the top of the first fixed plate, a first hydraulic push rod is provided at the bottom of the first fixed plate, the output end of the first hydraulic cylinder is fixedly connected to one end of the telescopic inner rod of the first hydraulic push rod, a first connecting plate is provided at the bottom of the first fixed plate, and the other end of the telescopic inner rod of the first hydraulic push rod is fixedly connected to the top of the first connecting plate.
[0011] In a preferred embodiment of this utility model, two sets of first damping spring rods are fixedly installed between the first fixing plate and the first connecting plate, two sets of second fixing plates are fixedly installed at the bottom of the first connecting plate, a third fixing plate is fixedly installed at the bottom of the second fixing plate, and two sets of fourth fixing plates are provided at the bottom of the first fixing plate. Four sets of second damping spring rods are fixedly installed between each set of third fixing plates and fourth fixing plates.
[0012] In a preferred embodiment of the present invention, a first limiting frame plate is fixedly installed at the bottom of the fourth fixing plate, and an auxiliary wheel is rotatably installed inside the first limiting frame plate, with the outer wall of the auxiliary wheel in close contact with the ground.
[0013] In a preferred embodiment of this utility model, a fourth connecting plate is fixedly installed on one outer wall of the second limiting frame plate, an adhesive plate is pasted on one inner wall of the fourth connecting plate, six sets of first threaded grooves are opened inside the fourth connecting plate, a limiting bolt is spirally installed inside the first threaded groove, and a hexagonal nut is spirally installed on the outer wall of the limiting bolt.
[0014] In a preferred embodiment of the present invention, a set of fifth fixing plates are fixedly installed on the top and bottom of the second limiting frame plate, and an elastic plate is fixedly installed on one side of the outer wall of the fifth fixing plate, with one end of the elastic plate fixedly connected to the outer wall of the second connecting plate.
[0015] In a preferred embodiment of this utility model, the outer wall surface of the auxiliary wheel has a toothed block structure with uneven surfaces.
[0016] Compared with the prior art, the present invention has the following advantages:
[0017] 1. To achieve the purpose of adjusting the angle of the device, expanding the tilt angle of the device, providing support for the bulldozer at multiple angles, improving the support effect of the device, improving the anti-rollover capability of the device, and improving the ease of use of the device.
[0018] 2. To achieve the purpose of height adjustment of the anti-rollover structure, meet the installation requirements of different bulldozers, improve the applicability of the device, improve the anti-rollover effect of the device on bulldozers, and improve the safety of the device in use.
[0019] 3. To achieve the purpose of fixing the device to the bulldozer, improve the connection effect between devices, enhance the fixing strength of the device, improve the durability of the device, and optimize the user experience of the device.
[0020] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description
[0021] In the attached diagram:
[0022] Figure 1 This is a schematic diagram of the structure of this utility model;
[0023] Figure 2 This is a schematic diagram of the first connecting plate structure of this utility model;
[0024] Figure 3 This is a schematic diagram of the auxiliary wheel structure of this utility model;
[0025] Figure 4 This is a schematic diagram showing the disassembled second limiting frame plate and fixing sleeve of this utility model;
[0026] Figure 5 This is a schematic diagram showing the disassembled second limiting frame plate and fifth fixing plate of this utility model;
[0027] Figure 6 This is a schematic diagram of the fourth connecting plate structure of this utility model.
[0028] In the diagram: 10. First fixing plate; 11. First hydraulic cylinder; 12. First hydraulic push rod; 13. First connecting plate; 14. First damping spring rod; 15. Second fixing plate; 16. Third fixing plate; 17. Second damping spring rod; 18. Fourth fixing plate; 19. First limiting frame plate; 20. Auxiliary wheel; 21. Second limiting frame plate; 22. Servo motor; 23. Rotating shaft; 24. Fixing sleeve; 25. Second connecting plate; 26. Third connecting plate; 27. Fourth connecting plate; 28. Adhesive plate; 29. First threaded groove; 30. Limiting bolt; 31. Hexagonal nut; 32. Fifth fixing plate; 33. Elastic plate. Detailed Implementation
[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.
[0030] Example 1: A bulldozer anti-rollover device, specifically as follows Figure 1 , Figure 4 and Figure 5 As shown, the device includes a first fixed plate 10, which is disposed on both sides of the bulldozer; and an angle adjustment structure, which includes a first adjustment part and a second adjustment part. The first adjustment part includes a second limiting frame plate 21 disposed outside the first fixed plate 10. A servo motor 22 is fixedly installed on one outer wall of the second limiting frame plate 21, and a rotating shaft 23 is rotatably installed inside the second limiting frame plate 21. The output shaft of the servo motor 22 is fixedly connected to one end of the rotating shaft 23 via a coupling. The second adjustment part includes a third connecting plate 26 fixedly installed on one outer wall of the first fixed plate 10. A second connecting plate 25 is fixedly installed on one outer wall of the third connecting plate 26, and a fixing sleeve 24 is fixedly installed on the outer wall of the second connecting plate 25. The inner wall of the fixing sleeve 24 is fixedly connected to the outer wall of the rotating shaft 23. The angle of the device is adjusted by using the angle adjustment structure. The servo motor 22 is started, which drives the rotating shaft 23 to rotate, thereby adjusting the tilt angle of the fixing sleeve 24, the second connecting plate 25, and the third connecting plate 26, thus adjusting the tilt angle of the first fixed plate 10.
[0031] Based on the above, the structure of the first fixed plate 10, the second limiting frame plate 21, the servo motor 22, the rotating shaft 23, the fixed sleeve 24, the second connecting plate 25 and the third connecting plate 26 achieves the purpose of adjusting the angle of the device, expanding the tilt angle of the device, providing support for the bulldozer at various angles, improving the support effect of the device, improving the anti-rollover capability of the device, and improving the ease of use of the device.
[0032] Example 2: Based on Example 1, specifically as follows... Figure 1 and Figure 2 As shown, a first hydraulic cylinder 11 is fixedly mounted on the top of the first fixed plate 10, and a first hydraulic push rod 12 is provided at the bottom of the first fixed plate 10. The output end of the first hydraulic cylinder 11 is fixedly connected to one end of the telescopic inner rod of the first hydraulic push rod 12. A first connecting plate 13 is provided at the bottom of the first fixed plate 10, and the other end of the telescopic inner rod of the first hydraulic push rod 12 is fixedly connected to the top of the first connecting plate 13. Activating the first hydraulic cylinder 11 drives the first hydraulic push rod 12 to move, thereby pushing the first connecting plate 13 up and down.
[0033] Specifically, such as Figure 1 , Figure 2 and Figure 3 As shown, two sets of first damping spring rods 14 are fixedly installed between the first fixed plate 10 and the first connecting plate 13. Two sets of second fixed plates 15 are fixedly installed at the bottom of the first connecting plate 13. A third fixed plate 16 is fixedly installed at the bottom of the second fixed plate 15. Two sets of fourth fixed plates 18 are provided at the bottom of the first fixed plate 10. Four sets of second damping spring rods 17 are fixedly installed between each set of third fixed plates 16 and fourth fixed plates 18. The first damping spring rods 14 provide auxiliary support for the first connecting plate 13, the second fixed plates 15 connect and fix the first connecting plate 13 and the third fixed plate 16, and the second damping spring rods 17 support and connect the third fixed plate 16 and the fourth fixed plate 18.
[0034] Specifically, such as Figure 1 , Figure 2 and Figure 3 As shown, a first limiting frame plate 19 is fixedly installed at the bottom of the fourth fixed plate 18. An auxiliary wheel 20 is rotatably installed inside the first limiting frame plate 19, and the outer wall of the auxiliary wheel 20 is in close contact with the ground. The first limiting frame plate 19 limits the auxiliary wheel 20, and the auxiliary wheel 20 assists in moving the bulldozer.
[0035] Based on the above, the structure consisting of the first fixed plate 10, the first hydraulic cylinder 11, the first hydraulic push rod 12, the first connecting plate 13, the first damping spring rod 14, the second fixed plate 15, the third fixed plate 16, the second damping spring rod 17, the fourth fixed plate 18, the first limiting frame plate 19, and the auxiliary wheel 20 achieves the purpose of height adjustment of the anti-rollover structure, meets the installation requirements of different bulldozers, improves the applicability of the device, enhances the anti-rollover effect of the device on bulldozers, and improves the safety of the device in use.
[0036] Example 3: Based on Examples 1 and 2, specifically as follows... Figure 1 , Figure 4 , Figure 5 and Figure 6As shown, a fourth connecting plate 27 is fixedly installed on one outer wall of the second limiting frame plate 21, and an adhesive plate 28 is pasted on one inner wall of the fourth connecting plate 27. Six sets of first threaded grooves 29 are formed inside the fourth connecting plate 27. Limiting bolts 30 are screwed into the inside of the first threaded grooves 29, and hexagonal nuts 31 are screwed onto the outer wall of the limiting bolts 30. The inside of the second limiting frame plate 21 is connected to the side wall of the bulldozer, so that the adhesive plate 28 is tightly attached to the side wall of the bulldozer. The limiting bolts 30 are screwed into the inside of the first threaded grooves 29, and into the threaded grooves on the side wall of the bulldozer. The hexagonal nuts 31 are screwed onto the outer wall of the limiting bolts 30, thus limiting and fixing the limiting bolts 30.
[0037] Specifically, such as Figure 1 , Figure 4 and Figure 5 As shown, a set of fifth fixing plates 32 are fixedly installed at the top and bottom of the second limiting frame plate 21. An elastic plate 33 is fixedly installed on one outer wall of the fifth fixing plate 32, and one end of the elastic plate 33 is fixedly connected to the outer wall of the second connecting plate 25. The second connecting plate 25 is provided with auxiliary support through the fifth fixing plate 32 and the elastic plate 33.
[0038] Specifically, such as Figure 2 and Figure 3 As shown, the outer surface of the auxiliary wheel 20 has a toothed structure with uneven surfaces. This increases the friction between the auxiliary wheel 20 and the ground.
[0039] In summary, the structure of the auxiliary wheel 20, the second limiting frame plate 21, the fourth connecting plate 27, the adhesive plate 28, the first threaded groove 29, the limiting bolt 30, the hexagonal nut 31, the fifth fixing plate 32, and the elastic plate 33 achieves the purpose of fixing the device to the bulldozer, improving the connection effect between devices, enhancing the fixing strength of the device, improving the durability of the device, and optimizing the user experience of the device.
[0040] Working principle: The angle adjustment structure includes a first adjustment part and a second adjustment part. In the first adjustment part, the second limiting frame plate 21 is installed outside the first fixed plate 10, and a servo motor 22 is mounted on it. The output shaft of the motor is connected to one end of the internal rotating shaft 23 through a coupling.In the second adjustment section, the third connecting plate 26 is fixed to one side of the first fixed plate 10, and the second connecting plate 25 is installed on it. The fixing sleeve 24 on the outer wall of the second connecting plate 25 is fixed to the outer wall of the rotating shaft 23. When the servo motor 22 is started, its output shaft drives the rotating shaft 23 to rotate. The rotating shaft 23 drives the fixing sleeve 24, the second connecting plate 25, and the third connecting plate 26 to adjust their tilt angles, thereby adjusting the tilt angle of the first fixed plate 10 to adapt to different working conditions and anti-rollover requirements. The top of the first fixed plate 10 is fixed with a first hydraulic cylinder 11, and the bottom is provided with a first hydraulic push rod 12. The output end of the cylinder is fixed to one end of the push rod extension rod, and the other end of the push rod extension rod is fixed to the top of the first connecting plate 13. When the first hydraulic cylinder 11 is started, it drives the first hydraulic push rod 12 to move, pushing the first connecting plate 13 to move up and down, realizing the vertical movement of the device and providing power support for anti-rollover. The first fixed plate 10 and the first connecting plate 13 Two sets of first damping spring rods 14 are fixed between the first connecting plate 13 and the ground to provide auxiliary support, buffer and disperse the force, and enhance the stability of the device. Two sets of second fixing plates 15 are fixed to the bottom of the first connecting plate 13, and a third fixing plate 16 is fixed to the bottom of the first fixing plate 13. Two sets of fourth fixing plates 18 are provided at the bottom of the first fixing plate 10. Four sets of second damping spring rods 17 are fixed between each set of third fixing plates 16 and fourth fixing plates 18 to support and connect the third fixing plates 16 and fourth fixing plates 18, further enhancing the anti-rollover capability of the device. A first limiting frame plate 19 is fixed to the bottom of the fourth fixing plate 18, and an auxiliary wheel 20 is rotatably installed inside it. The outer wall of the auxiliary wheel 20 is in close contact with the ground. The first limiting frame plate 19 limits the auxiliary wheel 20, and the auxiliary wheel 20 assists in the movement of the bulldozer. The outer wall surface of the auxiliary wheel 20 has a toothed structure with uneven texture. This structure can increase the stability of the auxiliary wheel 20. The friction with the ground provides better grip during bulldozer movement, preventing slippage and rollover. A fourth connecting plate 27 is fixed to one outer wall of the second limiting frame plate 21, and an adhesive plate 28 is pasted on its inner wall. Six sets of first threaded grooves 29 are opened inside, and limiting bolts 30 are spirally installed in the grooves. Hexagonal nuts 31 are spirally installed on the outer wall of the bolts, connecting the inside of the second limiting frame plate 21 to the side wall of the bulldozer, so that the adhesive plate 28 is tightly attached to the side wall. The limiting bolts 30 are spirally installed in the first threaded grooves 29 and the threaded grooves of the bulldozer side wall, and then fixed with hexagonal nuts 31 to ensure a stable connection between the device and the bulldozer. A set of fifth fixing plates 32 are fixed to the top and bottom of the second limiting frame plate 21, and elastic plates 33 are fixed to its outer wall. One end of the elastic plate 33 is fixed to the outer wall of the second connecting plate 25. The fifth fixing plates 32 and elastic plates 33 provide auxiliary support for the second connecting plate 25, enhancing the overall structural stability of the device.
[0041] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.
Claims
1. A bulldozer anti-rollover device, characterized in that, include: The first fixing plate (10) is set on both sides of the bulldozer; An angle adjustment structure includes a first adjustment part and a second adjustment part. The first adjustment part includes a second limiting frame plate (21) disposed outside the first fixed plate (10). A servo motor (22) is fixedly installed on one side of the outer wall of the second limiting frame plate (21). A rotating shaft (23) is rotatably installed inside the second limiting frame plate (21). The output shaft of the servo motor (22) is fixedly connected to one end of the rotating shaft (23) through a coupling. The second adjustment part includes a third connecting plate (26) fixedly installed on one side of the outer wall of the first fixed plate (10). A second connecting plate (25) is fixedly installed on one side of the outer wall of the third connecting plate (26). A fixing sleeve (24) is fixedly installed on the outer wall of the second connecting plate (25). The inner wall of the fixing sleeve (24) is fixedly connected to the outer wall of the rotating shaft (23).
2. The bulldozer anti-rollover device according to claim 1, characterized in that, A first hydraulic cylinder (11) is fixedly installed on the top of the first fixed plate (10), and a first hydraulic push rod (12) is provided at the bottom of the first fixed plate (10). The output end of the first hydraulic cylinder (11) is fixedly connected to one end of the telescopic inner rod of the first hydraulic push rod (12). A first connecting plate (13) is provided at the bottom of the first fixed plate (10), and the other end of the telescopic inner rod of the first hydraulic push rod (12) is fixedly connected to the top of the first connecting plate (13).
3. The bulldozer anti-rollover device according to claim 1, characterized in that, Two sets of first damping spring rods (14) are fixedly installed between the first fixed plate (10) and the first connecting plate (13). Two sets of second fixed plates (15) are fixedly installed at the bottom of the first connecting plate (13). A third fixed plate (16) is fixedly installed at the bottom of the second fixed plate (15). Two sets of fourth fixed plates (18) are provided at the bottom of the first fixed plate (10). Four sets of second damping spring rods (17) are fixedly installed between each set of third fixed plates (16) and fourth fixed plates (18).
4. The bulldozer anti-rollover device according to claim 3, characterized in that, The bottom of the fourth fixed plate (18) is fixedly installed with a first limiting frame plate (19), and an auxiliary wheel (20) is rotatably installed inside the first limiting frame plate (19). The outer wall of the auxiliary wheel (20) is in close contact with the ground.
5. The bulldozer anti-rollover device according to claim 1, characterized in that, A fourth connecting plate (27) is fixedly installed on one side of the outer wall of the second limiting frame plate (21), and an adhesive plate (28) is pasted on one side of the inner wall of the fourth connecting plate (27). Six sets of first threaded grooves (29) are opened inside the fourth connecting plate (27). Limiting bolts (30) are spirally installed inside the first threaded grooves (29), and hexagonal nuts (31) are spirally installed on the outer wall of the limiting bolts (30).
6. The bulldozer anti-rollover device according to claim 1, characterized in that, A set of fifth fixing plates (32) are fixedly installed on the top and bottom of the second limiting frame plate (21). An elastic plate (33) is fixedly installed on one side of the outer wall of the fifth fixing plate (32). One end of the elastic plate (33) is fixedly connected to the outer wall of the second connecting plate (25).
7. The bulldozer anti-rollover device according to claim 4, characterized in that, The outer wall surface of the auxiliary wheel (20) has a toothed block structure with uneven texture.