A special heavy-duty wheeled vehicle steering tie rod ball head dismounting tool

Abstract

The application discloses a special heavy-duty wheeled vehicle steering tie rod ball head dismounting tool which is used for dismounting the connection between a back-shaped support and a tie rod ball head, the back-shaped support comprising a tie rod connecting end, a pull arm connecting end, an upper connecting plate and a lower connecting plate, and the lower connecting plate being provided with an assembling hole for connecting the tie rod ball head; the dismounting tool comprises a clamping piece, the clamping piece comprising an upper wing plate and a lower wing plate, the upper wing plate and the lower wing plate being connected with a connecting portion at the same end, a threaded hole one being arranged in the middle of the upper wing plate, a circular through hole one being arranged in the middle of the lower wing plate and being concentric with the threaded hole one, the circular through hole one having a diameter larger than that of the threaded hole one, and the distance between the upper wing plate and the lower wing plate being larger than the thickness of the upper connecting plate; and a jackscrew is threadedly connected with the threaded hole one. The application has the advantages of simple operation, time and labor saving and damage reduction to vehicle parts during the dismounting of the special heavy-duty wheeled vehicle steering tie rod ball head, simple and compact structure, and convenience in carrying and storage.

Description

Technical Field

[0001] This utility model relates to the field of vehicle maintenance technology, and in particular to a special heavy-duty wheeled vehicle steering tie rod ball joint removal tool. Background Technology

[0002] Currently, when vehicles traverse complex obstacle courses, they are prone to malfunctions such as deformation and breakage of the steering tie rod, and excessive wear of the ball joints leading to detachment. These issues cause severe vehicle vibration, excessive tire wear, and loss of steering control. The mechanical-hydraulic power steering system used in special heavy-duty wheeled vehicles differs from traditional methods in its ball joint connection at both ends of the main tie rod. One difference lies in the design of the U-shaped bracket ball joint mounting holes to balance strength and weight reduction. Another difference is the extremely confined working space for disassembly and assembly; the end of the main tie rod is almost entirely within a recess. When such malfunctions occur, disassembling the tie rod requires the coordinated efforts of several people. Personnel must crawl under the vehicle and lie flat on the ground in this confined space, using a sledgehammer to hammer the tie rod ball joint pin and tie arm for vibratory disassembly, which is physically demanding and poses a significant safety hazard of impact injuries. Directly hammering the tie rod with a sledgehammer can easily cause deformation and damage to components such as the steering tie arm, ball joint pin, tie rod, and steering shaft, and the work is time-consuming and difficult.

[0003] While tie rod ball joint removers exist both domestically and internationally, their structural designs differ significantly from the specific requirements of tie rod removal for this type of vehicle, failing to meet the needs. For example, a steering ball joint removal tool (application number 202321871397.2) involves the lower end of a support cylinder abutting against the lower end of the ball joint support. The operator holds an adjusting component in each hand and applies force towards them to remove the steering ball joint. However, this tool cannot meet the limited space required for removing the main tie rod of special heavy-duty wheeled vehicles, nor can it handle the removal of U-shaped brackets. Therefore, a dedicated, rapid repair and removal tool for steering tie rods needs to be developed. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing a special heavy-duty wheeled vehicle steering tie rod ball joint removal tool. It is simple to operate, saves time and effort during the removal of steering tie rod ball joints of special heavy-duty wheeled vehicles, and reduces damage to vehicle components. It has a simple and compact structure, making it easy to carry and store.

[0005] To achieve the above objectives, this utility model provides a special heavy-duty wheeled vehicle steering tie rod ball joint disassembly tool for disassembling the connection between a U-shaped bracket and the tie rod ball joint. The U-shaped bracket includes a tie rod connecting end and a tie arm connecting end. The tie arm connecting end is connected to the tie arm by a tie arm ball joint. An upper connecting plate and a lower connecting plate are connected between the tie rod connecting end and the tie arm connecting end to form a weight-reducing structure. The lower connecting plate is provided with an assembly hole for connecting the tie rod ball joint, and the tie rod ball joint is connected to the front axle tie rod. The upper connecting plate is provided with a ball-head disassembly hole concentric with the assembly hole. It is characterized by including a snap-fit ​​component, which comprises an upper wing plate and a lower wing plate. A connecting portion is connected to the same end of the upper and lower wing plates. A threaded hole is provided in the middle of the upper wing plate, and a through hole concentric with the threaded hole is provided in the middle of the lower wing plate. The diameter of the through hole is larger than that of the threaded hole, and the distance between the upper and lower wing plates is greater than the thickness of the upper connecting plate. A set screw is threadedly connected to the threaded hole.

[0006] Furthermore, the upper wing plate is provided with a frustum, which is concentric with the threaded hole and passes through the frustum.

[0007] Furthermore, the upper wing plate has a through hole two at one end, and the lower wing plate has a threaded hole two at the other end. The threaded hole two is concentric with the through hole two. The diameter of the through hole two is larger than that of the threaded hole two. A clamping bolt is threadedly connected to the threaded hole two. The clamping bolt passes through the through hole two and connects to the threaded hole two.

[0008] Furthermore, there are two of each of the two through holes and two of the two threaded holes, and their axes are located in the same plane parallel to the connecting plate.

[0009] Furthermore, the upper end of the set screw is provided with a wrench, and the bottom of the wrench is provided with a retaining ring.

[0010] Furthermore, the lower connecting plate is connected to a positioning block, and the positioning block has a three-hole round hole at its center. The diameter of the three-hole round hole is larger than that of the threaded hole one. The three-hole round hole round hole is fitted with the connecting thread of the ball head of the tie rod. The lower surface of the positioning block is provided with a groove, and the groove is engaged with the edge of the lower connecting plate.

[0011] Furthermore, the material of the snap-fit ​​component is chromium-molybdenum steel.

[0012] The beneficial effects of this solution can be understood from the description of the solution above: (1) Simple operation, saving time and effort and reducing damage to vehicle parts during the disassembly of the tie rod ball joint of special heavy wheeled vehicles; (2) The structure is simple and compact, making it easy to carry and store; (3) Install clamping bolts to prevent excessive tension between the upper and lower wing plates during disassembly operations, which could cause deformation of the clamping parts; (4) Set up a truncated cone to increase the length of the threaded hole, thereby increasing the force on the threaded hole and ensuring that the set screw will not deflect. (5) A positioning block is set so that the contact point between the set screw and the ball head of the tie rod is located in the three round through holes of the positioning block, which prevents slippage between the set screw and the ball head of the tie rod. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 Sectional view A-A; Figure 3 This is a schematic diagram of the disassembled U-shaped bracket structure of this utility model; Figure 4 This is a schematic diagram of the structure of the snap-fit ​​component of this utility model; Figure 5 for Figure 4 Sectional view A-A; Figure 6 This is a schematic diagram of the positioning block of this utility model; Figure 7 for Figure 6 Sectional view A-A.

[0014] In the diagram, 1. U-shaped bracket; 11. Horizontal tie rod connection end; 12. Tie arm connection end; 13. Upper connecting plate; 14. Lower connecting plate; 15. Ball head disassembly hole; 16. Tie arm ball head; 2. Horizontal tie rod ball head; 3. Clip-on piece; 31. Upper wing plate; 32. Lower wing plate; 33. Connecting part; 34. Threaded hole one; 35. Through hole one; 36. Frustum one; 37. Through hole two; 38. Threaded hole two; 4. Set screw; 5. Clamping bolt; 6. Positioning block; 61. Frustum two; 62. Through hole three; 63. Groove; 7. Horizontal tie rod; 8. Tie arm; 9. Front axle tie rod. Detailed Implementation

[0015] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to describe the solution.

[0016] like Figure 1 and 2 As shown, this embodiment is a special heavy-duty wheeled vehicle steering tie rod ball joint removal tool, used to disassemble the connection between the U-shaped bracket 1 and the tie rod ball joint 2, as follows. Figure 3As shown, the U-shaped bracket 1 includes a horizontal tie rod connecting end 11 and a tie arm connecting end 12. The horizontal tie rod connecting end 11 is connected to the horizontal tie rod 7, and the tie arm connecting end 12 is connected to the tie arm 8 by the tie arm ball head 16. An upper connecting plate 13 and a lower connecting plate 14 are connected between the horizontal tie rod connecting end 11 and the tie arm connecting end 12 to form a weight reduction structure. The lower connecting plate 14 is provided with an assembly hole for connecting the horizontal tie rod ball head 2 and connecting the front axle tie rod 9 by the horizontal tie rod ball head 2. The upper connecting plate 13 is provided with a ball head disassembly hole 15 concentric with the assembly hole.

[0017] like Figure 4 and 5 As shown, this embodiment includes a snap-fit ​​component 3, which includes an upper wing plate 31 and a lower wing plate 32. A connecting portion 33 is connected to the same end of the upper wing plate 31 and the lower wing plate 32. A threaded hole 34 is provided in the middle of the upper wing plate 31, and a through hole 35 concentric with the threaded hole 34 is provided in the middle of the lower wing plate 32. The diameter of the through hole 35 is larger than that of the threaded hole 34. A set screw 4 is threadedly connected to the threaded hole 34. A wrench is provided at the upper end of the set screw 4, and a retaining ring is provided at the bottom of the wrench. The diameter of the through hole 35 is not less than 18mm, and the diameters of the threaded hole 34 and the set screw 4 are not less than 16mm, and the strength of the set screw 4 is not less than 10.9. The distance between the upper wing plate 31 and the lower wing plate 32 is greater than the thickness of the upper connecting plate 13. The upper wing plate 31 is provided with a frustum 36, which is concentric with the threaded hole 34, and the threaded hole 34 passes through the frustum 36. The upper flange 31 has a through hole 37 at one end, and the lower flange 32 has a threaded hole 38 at the other end. The threaded hole 38 is concentric with the through hole 37, and the diameter of the through hole 37 is larger than that of the threaded hole 38. A clamping bolt 5 is threadedly connected to the threaded hole 38, passing through the through hole 37 and connecting to the threaded hole 38. The threaded hole 38 has a diameter of not less than 14mm, and the clamping bolt 5 has a strength of not less than 8.8. There are two through holes 37 and two threaded holes 38, and their axes are on the same plane parallel to the connecting part 33.

[0018] Considering the large size of the vehicle tie rod ball joint, the tight installation fit, the high strength requirements of the disassembly device, and the need to adapt to disassembly operations in various complex environments, the snap-fit ​​part 3 is made of chromium-molybdenum steel with the best strength, wear resistance, heat resistance, and cold resistance properties to ensure the performance and lifespan of the device.

[0019] As shown in 6 and 7, the lower connecting plate 14 is connected to a positioning block 6. The positioning block 6 has a second frustum 61 at its center. The second frustum 61 has a third through hole 62. The diameter of the third through hole 62 is larger than that of the first threaded hole 34. The third through hole 62 is fitted with the connecting thread of the cross tie rod ball head 2. The lower surface of the positioning block 6 has a groove 63, which is engaged with the edge of the lower connecting plate 14.

[0020] like Figure 1 and 2As shown, during operation, first insert the positioning block 6 between the upper connecting plate 13 and the lower connecting plate 14, and then connect the connecting thread of the ball head 2 of the tie rod 2 through the three-round hole 62 in the center of the positioning block 6. Then, rotate the set screw 4 to slightly extend it beyond the lower surface of the upper wing plate 31, and then insert the cavity of the snap-fit ​​3 into the upper connecting plate 13. Locate the ball head disassembly hole 15 of the upper connecting plate 13 from the end of the set screw 4 that slightly extends beyond the upper wing plate 31. Secure it with two clamping bolts 5 passing through the two-round hole 37 and the two-threaded hole 38 respectively.

[0021] Then, rotate the set screw 4 so that it passes through the ball head disassembly hole 15 and the through hole 35 in sequence. Then, use a wrench or socket to turn the set screw 4 so that the thrust end of the set screw 4 enters the through hole 62 of the positioning block 6 and pushes the tie rod ball head 2, so that the tie rod ball head 2 disengages from the U-shaped bracket 1, completing the disassembly.

[0022] The technical features of this utility model not described can be implemented by or using existing technology, and will not be repeated here. Of course, the above description is not a limitation of this utility model, and this utility model is not limited to the examples above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model should also be within the protection scope of this utility model.

Claims

1. A special heavy-duty wheeled vehicle steering tie rod ball joint disassembly tool, used to disassemble the connection between a U-shaped bracket and the tie rod ball joint, wherein the U-shaped bracket includes a tie rod connecting end and a tie arm connecting end, the tie arm connecting end is connected to the tie arm by a tie arm ball joint, and an upper connecting plate and a lower connecting plate are connected between the tie rod connecting end and the tie arm connecting end to form a weight-reducing structure; the lower connecting plate is provided with an assembly hole for connecting the tie rod ball joint and connecting the tie rod ball joint to the front axle tie rod, and the upper connecting plate is provided with a ball joint disassembly hole concentric with the assembly hole, characterized in that... The device includes a snap-fit ​​component, which comprises an upper wing plate and a lower wing plate. The upper and lower wing plates are connected to a connecting part at the same end. A threaded hole is provided in the middle of the upper wing plate, and a through hole concentric with the threaded hole is provided in the middle of the lower wing plate. The diameter of the through hole is larger than that of the threaded hole, and the distance between the upper and lower wing plates is greater than the thickness of the upper connecting plate. A set screw is threadedly connected to the threaded hole.

2. The special heavy-duty wheeled vehicle steering tie rod ball joint removal tool according to claim 1, characterized in that, The upper wing plate is provided with a frustum, which is concentric with the threaded hole, and the threaded hole passes through the frustum.

3. The special heavy-duty wheeled vehicle steering tie rod ball joint removal tool according to claim 1, characterized in that, The upper wing plate has a through hole two at one end, and the lower wing plate has a threaded hole two at the other end. The threaded hole two is concentric with the through hole two. The diameter of the through hole two is larger than that of the threaded hole two. A clamping bolt is threadedly connected to the threaded hole two. The clamping bolt passes through the through hole two and connects to the threaded hole two.

4. A special heavy-duty wheeled vehicle steering tie rod ball joint removal tool according to claim 3, characterized in that, There are two of each of the two through holes and two of the two threaded holes, and their axes are located on the same plane parallel to the connecting plate.

5. A special heavy-duty wheeled vehicle steering tie rod ball joint removal tool according to claim 1, characterized in that, The upper end of the set screw is provided with a wrench, and the bottom of the wrench is provided with a retaining ring.

6. A special heavy-duty wheeled vehicle steering tie rod ball joint removal tool according to claim 1, characterized in that, The lower connecting plate is connected to a positioning block. The positioning block has a second frustum at its center and a third through hole. The diameter of the third through hole is larger than that of the first threaded hole. The third through hole is fitted with the connecting thread of the ball head of the tie rod. The lower surface of the positioning block has a groove that engages with the edge of the lower connecting plate.

7. A special heavy-duty wheeled vehicle steering tie rod ball joint removal tool according to claim 1, characterized in that, The snap-fit ​​connector is made of chromium-molybdenum steel.

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