Special tool for correcting toe-in of torsion beam of automobile
By designing a hollow hydraulic jack tool, the four-wheel alignment problem caused by torsion beam deformation was solved, flexible and fast torsion beam correction operation was achieved, and the safety and handling of the car were improved.
Patent Information
- Application Number
- CN202422721843.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-11-08
AI Technical Summary
In the prior art, deformation of the torsion beam structure of an automobile causes changes in the toe angle of the four-wheel alignment, resulting in unstable driving, drifting, tail swinging and tire wear, affecting safety, stability and economy.
A hollow hydraulic jack tool was designed, including a cylinder, a plunger, a sleeve, a left hook and a right hook. Through the combination of different structures, flexible and rapid switching of operating states can be achieved to adapt to different torsion beam correction requirements.
It improves the operational efficiency and safety of torsion beam toe correction, ensures consistent operating force, avoids angle deviation, and enhances the safety and handling of the vehicle.
Smart Images
Figure CN223418199U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of automobile maintenance tools, in particular to the special tool for correcting toe-in of automobile torsion beam. BACKGROUND
[0002] When the chassis is subjected to severe jolt or external impact, the chassis suspension structure changes in varying degrees or even deforms, the deformation and change of the torsion beam structure can cause serious change of the toe-in angle contained in four-wheel positioning, which can cause the automobile to run to drift, spin, deviate and seriously uneven wear of the tire, increase the rolling resistance, increase the fuel consumption, and thus reduce the safety, stability, controllability and economy of the automobile running. SUMMARY
[0003] The utility model provides special tool for correcting toe-in of automobile torsion beam, and aims at solving the defects of prior art and effectively correcting the deformation of toe-in of torsion beam.
[0004] The utility model adopts the technical scheme that:
[0005] The special tool for correcting toe-in of automobile torsion beam, the hollow hydraulic jack includes cylinder body, the plunger passes through the cylinder body axle hole, and the plunger has plunger axle hole;Its characterized in that:
[0006] The sleeve is arranged on the outer fixed sleeve of the cylinder body, and the outer periphery of the sleeve is provided with two or more left hooks;
[0007] The part of the left side end of the main rod that protrudes from the plunger axle hole has a convex wall, the outer diameter of the convex wall is greater than the hole diameter of the plunger axle hole and less than the outer diameter of the plunger;
[0008] The part of the right side end of the main rod that protrudes from the plunger axle hole is fixed with the right hook body, and the outer periphery of the right hook body is provided with two or more right hooks;
[0009] When correcting the positive toe-in of the torsion beam:
[0010] The cylinder body is placed in the middle of the torsion beam, the two ends of the left iron chain are hung on the left hook, the two ends of the right iron chain are hung on the right hook, the left iron chain is wound around the left side of the torsion beam, and the right iron chain is wound around the right side of the torsion beam;
[0011] When correcting the negative toe-in of the torsion beam:
[0012] The cylinder body is placed in the middle of the torsion beam, the left top pipe is sleeved outside the convex wall of the main rod, and the right end face of the right hook body is abutted against the right end face of the cylinder body;
[0013] The left end face of the left top pipe abuts against the left side of the torsion beam, and the right end face of the right top pipe abuts against the right side of the torsion beam.
[0014] The portion of the right end portion of the main rod extending out of the plunger shaft hole is provided with an external thread, and the right pull hook body is screwed and fixed on the external thread.
[0015] A sleeve is provided on the outer fixed sleeve of the cylinder body, and a left retractor is arranged on the outer periphery of the left hoop of the sleeve; the right hoop of the sleeve is located on the right side, and the two ends of more than two connecting rods evenly distributed around the circumference are respectively screwed in the screw holes of the left hoop and the right hoop with threads, thereby connecting the left hoop and the right hoop.
[0016] It has two or more groups of circumferentially evenly distributed guide grooves, each of which is located between two parallel guide rods. The left end of the guide rod is screwed into the screw hole on the right end surface of the right hoop and is fixedly connected to the right hoop; the right retractor passes through the guide groove.
[0017] The right end of the guide rod is screwed into the screw hole on the left end surface of the right support ring and is fixedly connected to the right support ring. The right support ring has an axial hole. When correcting the negative toe of the torsion beam, the right top tube passes through the axial hole of the right support ring.
[0018] The utility model is beneficial in that:
[0019] The utility model can flexibly and quickly switch the use state to meet different correction requirements when performing the torsion beam toe-in correction operation, is simple to operate, improves work efficiency, and ensures a safe stress state.
[0020] Compared to existing solutions that use only a jack, the force exerted by the jack's extended plunger is greater than the pulling force exerted by the plunger's retraction, resulting in different forces in both directions. This makes it difficult for workers to control the force and may lead to deviations in the angle. Other existing solutions, such as combining a chain hoist with a jack, or using only a chain hoist, are inconvenient to operate and have different forces in both directions. However, the present invention utilizes the outward pushing force of the plunger, ensuring a constant pulling force in both directions. This makes it easier for workers to control the force and prevents deviations in the angle. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0022] Figure 1 This is the first use state of the utility model;
[0023] Figure 2 This is the second use state of the utility model;
[0024] Figure 3 is the deformation state 1 of the torsion beam;
[0025] Figure 4 is the second deformation state of the torsion beam;
[0026] Figure 5 is the third deformation state of the torsion beam;
[0027] Figure 6 This is the fourth deformation state of the torsion beam. DETAILED DESCRIPTION
[0028] In order to more clearly illustrate the technical solution of the present invention, the following will briefly introduce the drawings required for the description. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other embodiments can be obtained based on these drawings without inventive work. In order to facilitate understanding of the present invention, the following will be described in more detail with reference to the drawings and specific embodiments.
[0029] It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more elements can be present in between. When an element is described as being "connected" to another element, it can be directly connected to the other element, or one or more elements can be present in between. The terms "upper", "lower", "inner", "outer", "bottom", etc. used in this specification indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", "third", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.
[0030] like Figure 1 、 Figure 2 As shown:
[0031] The hollow hydraulic jack comprises a cylinder body 1, a plunger 11 passing through a cylinder body axial hole 10, and the plunger 11 has a plunger axial hole 12. An external hydraulic pump can control the plunger 11 to expand and contract in the cylinder body axial hole 10.
[0032] A sleeve 3 is fixedly sleeved outside the cylinder body 1. The outer periphery of the left hoop 31 of the sleeve 3 is provided with more than two left retractor hooks 34 evenly distributed around the circumference. The right hoop 32 of the sleeve 3 is located on the right side. The two ends of more than two connecting rods 33 evenly distributed around the circumference are screwed into the screw holes of the left hoop 31 and the right hoop 33 with threads, thereby connecting the left hoop 31 and the right hoop 33.
[0033] There are more than two groups of circumferentially evenly distributed guide grooves, each guide groove is located between two parallel guide rods 7, the left end of the guide rod 7 is screwed into the screw hole on the right end face of the right hoop 33 and is fixedly connected to the right hoop 33, the right end of the guide rod 7 is screwed into the screw hole on the left end face of the right support ring 71 and is fixedly connected to the right support ring 71, and the right support ring 71 has an axial hole 72.
[0034] The connecting rod 33 and the right supporting ring 71 are connecting members for providing strength to the structure.
[0035] The main rod 2 is movably inserted into the plunger shaft hole 12.
[0036] The part of the left end of the main rod 2 that extends out of the plunger shaft hole 12 has a convex wall 21, the outer diameter of the convex wall 21 is greater than the hole diameter of the plunger shaft hole 12 and smaller than the outer diameter of the plunger 11.
[0037] The part of the right end of the main rod 2 that extends out of the plunger shaft hole 12 has an external thread, the right hook body 23 is screwed and fixed on the external thread, the outer periphery of the right hook body 23 is provided with two or more groups of right hooks 24 corresponding to the guide grooves, the right hooks 24 are circumferentially distributed, the right hooks 24 pass through the guide grooves, and the guide grooves guide the movement of the right hooks 24.
[0038] In actual use:
[0039] As shown in the torsion beam deformation state one Figure 3 and as shown in the torsion beam deformation state three Figure 5 , the working condition is pulling, and the toe of the torsion beam is corrected.
[0040] As shown in the torsion beam deformation state one Figure 3 , at this time, the left side 101 of the torsion beam 100 deforms outward, and the lower part of the left side 101 needs to be corrected inward.
[0041] Therefore, the structure as shown in Figure 1 is used:
[0042] The cylinder body 1 is placed in the middle of the torsion beam 100, tilted, the two ends of the left iron chain 4 are hung on the left hook 34, and the two ends of the right iron chain 5 are hung on the right hook 24, the left iron chain 4 is wound around the lower part of the left side 101, and the right iron chain 5 is wound around the top end of the right side 102.
[0043] Then the hollow hydraulic jack drives the plunger 11 to move left in the cylinder shaft hole 10.
[0044] Since the lengths of the right iron chain 5, the right hook 24, and the main rod 2 are fixed, the plunger 11 is pushed left, and the convex wall 21 is pushed, and the plunger 11 cannot move left. Therefore, the cylinder body 1 moves right, the left hook 34 on the left sleeve hoop 31 of the sleeve 3 fixed on the cylinder body 1 moves right, the left iron chain 4 moves right as shown by the arrow, thereby pulling the lower part of the left side 101 of the torsion beam 100 right, that is, correcting the lower part of the left side 101 inward. In this state, the right iron chain 5 is wound around the top end of the right side 102, and the right iron chain 5 cannot move.
[0045] As shown in Figure 5The torsion beam is shown in deformation state three. At this time, the left side 101 and the right side 102 of the torsion beam 100 are deformed outward, and the lower parts of the left side 101 and the right side 102 need to be corrected inward.
[0046] Then use Figure 1 The structure:
[0047] Place the cylinder 1 in the middle of the torsion beam 100, horizontally, with the two ends of the left chain 4 hung on the left hook 34, and the two ends of the right chain 5 hung on the right hook 24. The left chain 4 is wrapped around the lower part of the left side 101, and the right chain 5 is wrapped around the lower part of the right side 102.
[0048] Then the hollow hydraulic jack drives the plunger 11 to push to the left in the cylinder shaft hole 10.
[0049] same Figure 3 In principle, the left iron chain 4 moves to the right as shown by the arrow, thereby pulling the lower part of the left side 101 of the torsion beam 100 to the right, that is, correcting the lower part of the left side 101 inward, and the right iron chain 5 moves to the left as shown by the arrow, thereby pulling the lower part of the right side 102 of the torsion beam 100 to the left, that is, correcting the lower part of the right side 102 inward.
[0050] like Figure 4 The torsion beam deformation state 2 and the Figure 6 The fourth deformation state of the torsion beam shown is the top working condition, which corrects the negative toe of the torsion beam.
[0051] like Figure 4 The torsion beam is in the second deformation state shown. At this time, the left side 101 of the torsion beam 100 is deformed inwards, and the lower part of the left side 101 needs to be corrected outwards.
[0052] Then use Figure 2 The structure:
[0053] Place the cylinder body 1 in the middle of the torsion beam 100 and tilt it. The left top tube 8 is sleeved on the outside of the convex wall 21 of the main rod 2 and presses against the left end face 13 of the plunger 11. The right top tube 9 passes through the axial hole 72 of the right support ring 71 and presses against the right end face of the right hook body 23 until the right hook body 23 and the main rod 2 move to the left and the right hook body 23 presses against the right end face of the cylinder body 1.
[0054] The left end surface of the left top tube 8 presses against the lower portion of the left side 101 , and the right end surface of the right top tube 9 presses against the top end of the right side 102 .
[0055] Then the hollow hydraulic jack drives the plunger 11 to push to the left in the cylinder shaft hole 10, and the left top pipe 8 pushes to the left. Since the length from the left end face of the cylinder 1 to the right end face of the right top pipe 9 is unchanged, the distance between the left end face of the left top pipe 8 and the right end face of the right top pipe 9 becomes longer.
[0056] The right end face of the right top tube 9 presses against the top of the right side 102, which is not moving. Then the lower part of the left side 101 is pushed outward by the left end face of the left top tube 8 as shown by the arrow, and the lower part of the left side 101 is corrected outward.
[0057] like Figure 6 The torsion beam is in deformation state four. At this time, the left side 101 and the right side 102 of the torsion beam 100 are deformed inwards, and the lower part of the left side 101 and the lower part of the right side 102 need to be corrected outwards.
[0058] Then use Figure 2 The structure:
[0059] Place the cylinder body 1 in the middle of the torsion beam 100, horizontally, with the left top tube 8 sleeved on the outside of the convex wall 21 of the main rod 2, pressing against the left end face 13 of the plunger 11, and the right top tube 9 passing through the axial hole 72 of the right support ring 71, pressing against the right end face of the right hook body 23, until the right hook body 23 and the main rod 2 move to the left, and the right hook body 23 presses against the right end face of the cylinder body 1.
[0060] The left end surface of the left top tube 8 abuts against the lower portion of the left side 101 , and the right end surface of the right top tube 9 abuts against the lower portion of the right side 102 .
[0061] same Figure 4 Then, the hollow hydraulic jack drives the plunger 11 to push to the left in the cylinder shaft hole 10, and the lower part of the left side 101 is pushed outward by the left end surface of the left jacking tube 8 as shown by the arrow, that is, the lower part of the left side 101 is corrected outward, and the lower part of the right side 102 is pushed outward by the right end surface of the right jacking tube 9 as shown by the arrow, that is, the lower part of the right side 102 is corrected outward.
[0062] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other. The above description of the disclosed embodiments enables professionals and technicians in this field to implement or use the utility model. Various modifications to these embodiments will be obvious to professionals and technicians in this field. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A special tool for toe-in correction of a torsion beam of an automobile, wherein the hollow hydraulic jack comprises a cylinder body, a plunger passing through an axial hole of the cylinder body, and a plunger axial hole; the characteristics are: A sleeve is provided on the fixed sleeve outside the cylinder body, and two or more left hooks are provided on the outer periphery of the sleeve; The portion of the left end of the main rod extending out of the plunger shaft hole has a convex wall, the outer diameter of the convex wall is larger than the hole diameter of the plunger shaft hole and smaller than the outer diameter of the plunger; The right end of the main rod extending out of the plunger shaft hole is fixed with a right retractor body, and the outer periphery of the right retractor body is provided with two or more groups of right retractors; When correcting the toe-in of the torsion beam: Place the cylinder in the middle of the torsion beam, hang the two ends of the left chain on the left hook, hang the two ends of the right chain on the right hook, wrap the left chain around the left side of the torsion beam, and wrap the right chain around the right side of the torsion beam; When correcting the negative toe of the torsion beam: Place the cylinder body in the middle of the torsion beam, with the left top tube sleeved outside the convex wall of the main rod and pressed against the left end face of the plunger, and the right top tube pressed against the right end face of the right pull hook body, which in turn presses against the right end face of the cylinder body; The left end surface of the left top tube presses against the left side of the torsion beam, and the right end surface of the right top tube presses against the right side of the torsion beam.
2. The special tool for toe correction of a torsion beam of an automobile according to claim 1, characterized in that: The portion of the right end portion of the main rod extending out of the plunger shaft hole is provided with an external thread, and the right pull hook body is screwed and fixed on the external thread.
3. The special tool for toe correction of a torsion beam of an automobile according to claim 1, characterized in that: A sleeve is provided on the outer fixed sleeve of the cylinder body, and a left retractor is arranged on the outer periphery of the left hoop of the sleeve; the right hoop of the sleeve is located on the right side, and the two ends of more than two connecting rods evenly distributed around the circumference are respectively screwed in the screw holes of the left hoop and the right hoop with threads, thereby connecting the left hoop and the right hoop.
4. The tool for toe correction of a torsion beam of an automobile according to claim 3, characterized in that: It has two or more groups of circumferentially evenly distributed guide grooves, each of which is located between two parallel guide rods. The left end of the guide rod is screwed into the screw hole on the right end surface of the right hoop and is fixedly connected to the right hoop; the right retractor passes through the guide groove.
5. The special tool for toe correction of a torsion beam of an automobile as claimed in claim 3, characterized in that: The right end of the guide rod is screwed into the screw hole on the left end surface of the right support ring and is fixedly connected to the right support ring. The right support ring has an axial hole. When correcting the negative toe of the torsion beam, the right top tube passes through the axial hole of the right support ring.