Supporting tool for assisting installation of steering knuckle

Abstract

The utility model relates to a supporting tool used for assisting installation of a steering knuckle, which comprises a first abutting portion used for abutting against a brake on the side of the steering knuckle, a second abutting portion used for abutting against a side auxiliary frame opposite to the steering knuckle, a connecting shaft, a first connecting block and an elastic piece, and the first abutting portion is coaxially and detachably connected with one end of the connecting shaft through the first connecting block. The second abutting part is coaxially and movably connected with the other end of the connecting shaft, and the elastic piece is arranged outside the connecting shaft in a sleeving mode and limited between the first connecting block and the second abutting part. According to the utility model, the defect that no stable and adjustable supporting workpiece exists when the existing steering knuckle is installed is overcome, and the steering knuckle is fixed at a position allowed by the design, so that the assembly angle of the steering knuckle is accurately controlled, and the steering knuckle cannot deflect due to counter-acting force in the fastening process; and the problems of poor installation of the steering wheel and vehicle deviation caused by improper assembly angle of the steering knuckle are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle body assembly, and more specifically, to a supporting tool for assisting the installation of a steering knuckle. Background Art

[0002] The steering knuckle is one of the important parts in the steering axle of an automobile. It is a bridge that ensures stable driving of the automobile and sensitively transmits the driving direction. The function of the steering knuckle is to transmit and bear the load on the front of the automobile, support and drive the front wheel to rotate around the kingpin to steer the automobile, and control the driving direction of the automobile according to the driver's wishes. It is one of the systems with the highest requirements for automobile safety index. When the steering knuckle is installed, a connecting arm extends from the lower part of the steering knuckle, and a clamping hole is opened on the connecting arm for inserting the top end of the lower arm of the front suspension. After the lower arm is inserted into the steering knuckle, it is tightened and fixed with a nut so as to transmit the wheel bounce caused by uneven road surface during driving to the lower arm shock absorbing component. Similarly, a connecting arm extends from the front part of the steering knuckle and a clamping hole is opened for inserting one end of the steering gear tie rod. After the steering tie rod is inserted into the steering knuckle, it is also tightened with a nut so as to output the user's steering intention to the wheel and transmit the road feel to the steering wheel through the steering gear.

[0003] During the assembly of the steering knuckle, when the connecting end of the lower swing arm is inserted into the extending arm on the steering knuckle side and the locking nut is tightened, the steering knuckle rotates clockwise around the fastening shaft due to the reaction force of tightening the nut, thereby driving the steering column to rotate. Since the steering wheel is installed on the steering column, it is necessary to ensure that the number of turns to the extreme position is consistent when the steering wheel is installed. Therefore, if there is no stable and adjustable supporting workpiece before installation, the steering column is easy to rotate, which will cause it to be out of the appropriate installation position of the steering wheel, which will make it difficult to center the steering wheel. In severe cases, it will cause the steering wheel to be misaligned and the vehicle to run off the track. Therefore, during the current assembly of the steering knuckle, the steering knuckle angle is mainly fixed manually, and the steering knuckle angle is adjusted by manually centering the steering wheel multiple times, and then another person is assigned to lock the fastening nut of the steering knuckle. This process requires a large number of people to balance the weight, and the manual positioning accuracy is poor, and the assembly consistency cannot be guaranteed. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiency of the existing steering knuckle that there is no stable and adjustable support workpiece when installing the steering knuckle, and to provide a support tool for assisting the steering knuckle installation. The utility model fixes the steering knuckle at a position allowed by the design, thereby achieving precise control of the steering knuckle assembly angle, and the steering knuckle will not be deflected by the reaction force during the tightening process, thereby avoiding the problem of poor steering wheel installation and vehicle deviation caused by inappropriate steering knuckle assembly angle.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A supporting tool for assisting the installation of a steering knuckle, comprising a first abutting portion for abutting a brake on the steering knuckle side, a second abutting portion for abutting a side sub-frame opposite to the steering knuckle, a connecting shaft, a first connecting block and an elastic member, wherein the first abutting portion is coaxially detachably connected to one end of the connecting shaft through the first connecting block, the second abutting portion is coaxially movably connected to the other end of the connecting shaft, and the elastic member is sleeved on the outside of the connecting shaft and limited between the first connecting block and the second abutting portion.

[0007] When the steering knuckle is installed, when the connecting end of the lower swing arm is inserted into the protruding arm on the steering knuckle side and the locking nut is tightened, the brake on the steering knuckle side rotates clockwise around the tightening shaft due to the reaction force of tightening the nut, which will drive the steering column to rotate. Therefore, this process needs to ensure the relative stability of the steering knuckle side and the opposite side. When the steering knuckle is installed, the first abutting part of the utility model abuts against the flat end surface of the brake on the steering knuckle side, and the second abutting part abuts against the subframe on the opposite side of the steering knuckle. The connecting shaft fixes the positions of the two, and the elastic member forms an abutting force between the first abutting part and the second abutting part, so that the steering knuckle is fixed at the position allowed by the design, thereby achieving precise control of the steering knuckle assembly angle, and the steering knuckle will not be deflected by the reaction force during the tightening process, thereby avoiding the problems of poor steering wheel installation and vehicle deviation due to inappropriate steering knuckle assembly angle. The utility model has a movable connection between the connecting shaft and the second abutting portion. Through the compression of the elastic member, the length of the connecting shaft can be adjusted in the axial direction, which also increases the stability of the tool and adapts to the flexible assembly of different distances between the steering knuckle and the subframe of different vehicle models.

[0008] Furthermore, a slot is formed on the side wall of the second abutting portion, and the other end of the connecting shaft is movable through the slot. A latch is also inserted into the other end of the connecting shaft for limiting the connecting shaft from coming out of the slot.

[0009] Furthermore, a pull ring is provided at the end of the latch.

[0010] One end of the connecting shaft is inserted into the slot and limited by a latch, which can facilitate the disassembly and assembly of the connecting shaft and the second abutment portion, and is convenient for later maintenance of the device; in addition, due to space limitations between the installation position and construction operations, the second abutment portion can be abutted against a specified position of the subframe, and the connecting shaft can be adjusted in length with a certain margin in the slot by compressing the elastic member, which can more flexibly cope with size differences between different structural surfaces. After the first abutment portion is abutted and installed in place, the compression of the elastic member is released. Since the elastic member has a certain amount of compression, it can provide a certain axial support force after release, so as to enhance the stability of the tool after installation and improve the universality of the tool in flexible production.

[0011] Furthermore, the first connecting block includes a threaded rod threadedly connected to the first abutting portion, and a threaded sleeve threadedly connected to the other end of the threaded rod, and the connecting shaft is fixedly connected to the threaded sleeve.

[0012] Furthermore, the first connecting block also includes a positioning nut threadedly connected to the threaded rod, and the positioning nut is located between the first abutting portion and the threaded sleeve.

[0013] It should be noted that by adjusting the length of the threaded sleeve and the threaded rod, the length between the first abutment portion and the second abutment portion can be changed. A positioning nut is provided at the connection between the threaded sleeve and the threaded rod. When the connecting shaft is adjusted to an appropriate length, the positioning nut is then tightened onto the end face of the threaded sleeve, so that the connection between the threaded sleeve and the threaded rod is more stable, ensuring that the overall length of the threaded sleeve and the threaded rod will not change under the action of the positioning nut during use.

[0014] Furthermore, the first abutment portion includes a first abutment head for abutting against the brake end face on the steering knuckle side, and a first buffer pad arranged at the end of the first abutment head, and the first abutment head is coaxially and detachably connected to one end of the connecting shaft through a first connecting block.

[0015] Furthermore, the first abutment joint is a frustum-shaped abutment block, and the first buffer pad is arranged on the bottom surface of the first abutment joint.

[0016] It should be noted that the first buffer pad can be fixed to the first abutment joint by bolts. The first buffer pad can be a rubber pad, which can avoid scratches caused by collision between the first abutment joint and the surface of the abutment joint on the steering knuckle side brake. The first abutment joint is designed as a frustum-shaped abutment block, which is convenient for tool installation and increases the contact area with the abutment joint on the steering knuckle side brake, which can increase the supporting friction force, reduce the relative sliding between the first abutment joint and the steering knuckle side brake, and is more stable when used.

[0017] Furthermore, the second abutment portion includes a second abutment joint for abutting the subframe cross arm, a second buffer pad arranged at one end of the second abutment joint, and a limiting sleeve coaxially connected to the other end of the second abutment joint, a groove is opened on the side wall of the second abutment joint, and the connecting shaft passes through the limiting sleeve and movably passes through the groove.

[0018] Furthermore, an end portion of the second abutment joint connected to one end of the second buffer pad is an L-shaped abutment groove, and the second buffer pad is conformally covered on the surface of the L-shaped abutment groove.

[0019] It should be noted that, since the opposite side of the steering knuckle is the subframe, the side end surface of the subframe is a rod-shaped structure and there is no suitable support point, the end of the second abutment joint is set as an L-shaped abutment groove, which is a contoured design of the side end surface of the subframe, can effectively increase the contact area between the second abutment joint and the subframe, and the L-shaped abutment groove can be hung on the subframe, with better support stability and consistency; the second buffer pad can be fixed to the second abutment joint by bolts, and the second buffer pad can be a rubber pad, which can avoid scratches caused by collision between the second abutment joint and the surface of the subframe.

[0020] Furthermore, the elastic member is a spring. It should be noted that when the spring is located between the first connecting member and the second abutting portion, the spring has an initial compression amount, so that a certain abutting force can be formed in the axial direction.

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] (1) When the steering knuckle is installed, the first abutting portion of the utility model abuts against the flat end surface of the brake on the steering knuckle side, and the second abutting portion abuts against the subframe on the opposite side of the steering knuckle. The connecting shaft fixes the positions of the two, and the elastic member forms an abutting force between the first abutting portion and the second abutting portion, so that the steering knuckle is fixed at a position allowed by the design, thereby achieving precise control of the steering knuckle assembly angle. The steering knuckle will not be deflected by the reaction force during the tightening process, thereby avoiding the problem of poor steering wheel installation and vehicle deviation due to inappropriate steering knuckle assembly angle.

[0023] (2) The connection between the connecting shaft and the second abutment portion of the utility model is in the form of a movable connection. Through the compression action of the elastic member, the length of the connecting shaft can be adjusted in the axial direction, which also increases the stability of the tool and adapts to the flexible assembly of different distances between the steering knuckle and the subframe of different vehicle models. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the application scenario of the utility model;

[0025] Figure 2 It is a schematic diagram of the structure of the utility model;

[0026] Figure 3 It is an application schematic diagram of the utility model.

[0027] The illustrations are as follows:

[0028] 1-first abutment portion, 11-first abutment head, 12-first buffer pad, 2-second abutment portion, 20-slot, 21-latch pin, 22-second abutment head, 23-second buffer pad, 24-limiting sleeve, 3-connecting shaft, 4-first connecting block, 41-threaded rod, 42-threaded sleeve, 43-positioning nut, 5-elastic member, 100-steering knuckle, 101-brake, 200-locking nut, 300-subframe, 301-lower swing arm, 500-extending arm. DETAILED DESCRIPTION

[0029] The utility model is further described below in conjunction with specific implementation methods. The drawings are only used for exemplary descriptions, and are only schematic diagrams, not actual pictures, and cannot be understood as limitations on this patent; in order to better illustrate the embodiments of the utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0030] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0031] Example 1

[0032] This embodiment is applied to the assembly process of the vehicle steering knuckle 100:

[0033] like Figure 1 As shown, during the assembly process of the steering knuckle 100, when the connecting end of the lower swing arm 301 of the sub-frame 300 on the side opposite to the steering knuckle is inserted into the extending arm 500 on the steering knuckle side, the brake 101 on the steering knuckle side is located between the lower swing arm 301 and the extending arm 500, and is connected and fixed by tightening the locking nut 200. When the locking nut 200 is tightened, the steering knuckle 100 will rotate clockwise around the fastening axis of the locking nut 200 due to the reaction force of the nut tightening, thereby driving the steering column of the steering knuckle 100 to rotate, which will cause it to be out of the appropriate installation position of the steering wheel, which will make it difficult to center the steering wheel, and in severe cases, will cause the steering wheel to be misaligned, the vehicle to run off the track, and other problems; therefore, in this assembly process, it is necessary to ensure that the brake 101 on the steering knuckle side and the sub-frame 300 on the opposite side are relatively stable.

[0034] like Figure 2 As shown, in order to solve the application problem, the present embodiment provides a supporting tool for assisting the installation of a steering knuckle, including a first abutting portion 1 for abutting the brake 101 on the side of the steering knuckle 100, a second abutting portion 2 for abutting the side sub-frame 300 opposite to the steering knuckle 100, a connecting shaft 3, a first connecting block 4 and an elastic member 5. The first abutting portion 1 is coaxially and detachably connected to one end of the connecting shaft 3 through the first connecting block 4, the second abutting portion 2 is coaxially and movably connected to the other end of the connecting shaft 3, and the elastic member 5 is sleeved on the outside of the connecting shaft 3 and limited between the first connecting block 4 and the second abutting portion 2.

[0035] In this embodiment, the elastic member 5 is a spring. It should be noted that when the spring is located between the first connecting member and the second abutting portion 2, the spring has an initial compression amount, so that a certain abutting force can be formed in the axial direction.

[0036] like Figure 1 and Figure 3 As shown, when the support tool of this embodiment is installed on the steering knuckle 100, the first abutting portion 1 abuts on the flat end surface of the brake 101 on the steering knuckle side, and the second abutting portion 2 abuts on the subframe 300 on the opposite side of the steering knuckle 100. The connecting shaft 3 realizes the position fixation of the two, and the elastic member 5 realizes the formation of abutting force between the first abutting portion 1 and the second abutting portion 2, so that the steering knuckle 100 is fixed at a position allowed by the design, thereby achieving precise control of the assembly angle of the steering knuckle 100. The steering knuckle 100 will not be deflected by the reaction force during the tightening process, avoiding the problem of poor steering wheel installation and vehicle deviation caused by inappropriate assembly angle of the steering knuckle 100. In this embodiment, the connecting shaft 3 and the second abutting portion 2 are in the form of active connection. Through the compression of the elastic member 5, the length of the connecting shaft 3 can be compressibly adjusted in the axial direction, which also increases the stability of the tool and adapts to the flexible assembly of different spacings between the steering knuckle 100 and the subframe 300 of different vehicle models.

[0037] like Figure 2 As shown, a slot 20 is formed on the side wall of the second abutting portion 2 , and the other end of the connecting shaft 3 is movable through the slot 20 . A latch 21 is inserted at the other end of the connecting shaft 3 for limiting the connecting shaft 3 from slipping out of the slot 20 .

[0038] In this embodiment, a pull ring is further provided at the end of the latch pin 21 .

[0039] like Figure 2As shown, one end of the connecting shaft 3 is inserted into the slot 20 and is limited by the latch 21, which can facilitate the disassembly and assembly of the connecting shaft 3 and the second abutting portion 2, and is convenient for the maintenance of the device in the later stage; in addition, due to the space limitation of the installation position and the construction operation, the second abutting portion 2 can be abutted to the specified position of the sub-frame 300, and the length of the connecting shaft 3 can be adjusted with a certain margin in the slot 20 by compressing the elastic member 5, which can more flexibly cope with the size difference between different structural surfaces. After the first abutting portion 1 is abutted and installed in place, the compression of the elastic member 5 is released. Since the elastic member 5 has a certain amount of compression, it can provide a certain axial supporting force after being released, so as to enhance the stability of the tool after installation and improve the universality of the tool in flexible production.

[0040] like Figure 2 As shown, the first connecting block 4 includes a threaded rod 41 threadedly connected to the first abutting portion 1 , and a threaded sleeve 42 threadedly connected to the other end of the threaded rod 41 , and the connecting shaft 3 is fixedly connected to the threaded sleeve 42 .

[0041] like Figure 2 As shown, the first connection block 4 further includes a positioning nut 43 threadedly connected to the threaded rod 41 , and the positioning nut 43 is located between the first abutting portion 1 and the threaded sleeve 42 .

[0042] It should be noted that by adjusting the length of the threads of the threaded sleeve 42 and the threaded rod 41, the length between the first abutment portion 1 and the second abutment portion 2 can be changed. A positioning nut 43 is provided at the connection between the threaded sleeve 42 and the threaded rod 41. When the connecting shaft 3 is adjusted to a suitable length, the positioning nut 43 is then tightened onto the end face of the threaded sleeve 42, so that the connection between the threaded sleeve 42 and the threaded rod 41 is more stable, ensuring that the overall length of the threaded sleeve 42 and the threaded rod 41 will not change under the action of the positioning nut 43 during use.

[0043] Example 2

[0044] This embodiment is similar to Embodiment 1, except that in this embodiment:

[0045] like Figure 2 As shown, the first abutment portion 1 includes a first abutment head 11 for abutting the end surface of the steering knuckle side brake 101, and a first buffer pad 12 arranged at the end of the first abutment head 11. The first abutment head 11 is coaxially and detachably connected to one end of the connecting shaft 3 through the first connecting block 4.

[0046] In this embodiment, the first abutment head 11 is a frustum-shaped abutment block, and the first buffer pad 12 is disposed on the bottom surface of the first abutment head 11 .

[0047] It should be noted that the first buffer pad 12 can be fixed to the first abutment 11 by bolts. The first buffer pad 12 can be a rubber pad, which can prevent the first abutment 11 from colliding with the surface of the abutment point on the steering knuckle side brake 101 and causing scratches. The first abutment 11 is designed as a frustum-shaped abutment block, which is convenient for tool installation and increases the contact area with the abutment point on the steering knuckle side brake 101, which can increase the supporting friction force and reduce the relative sliding between the first abutment 11 and the steering knuckle side brake 101, making it more stable when used.

[0048] The other structures and principles of this embodiment are the same as those of Embodiment 1.

[0049] Example 3

[0050] This embodiment is similar to Embodiment 2, except that

[0051] like Figure 2 As shown, the second abutment portion 2 includes a second abutment joint 22 for abutting the cross arm of the sub-frame 300, a second buffer pad 23 provided at one end of the second abutment joint 22, and a limiting sleeve 24 coaxially connected to the other end of the second abutment joint 22, a slot 20 is provided on the side wall of the second abutment joint 22, and the connecting shaft 3 passes through the limiting sleeve 24 and movably passes through the slot 20.

[0052] like Figure 2 and Figure 3 As shown, the end portion of the second abutting head 22 connected to one end of the second buffer pad 23 is an L-shaped abutting groove, and the second buffer pad 23 is conformally covered on the surface of the L-shaped abutting groove.

[0053] It should be noted that, since the opposite side of the steering knuckle 100 is the sub-frame 300, the side end surface of the sub-frame 300 is a rod-shaped structure and has no suitable support point, the end of the second abutment joint 22 is set as an L-shaped abutment groove, which is a contoured design of the side end surface of the sub-frame 300, can effectively increase the contact area between the second abutment joint 22 and the sub-frame 300, and the L-shaped abutment groove can be hung on the sub-frame 300, with better support stability and consistency; the second buffer pad 23 can be fixed to the second abutment joint 22 by bolts, and the second buffer pad 23 can be a rubber pad, which can avoid the second abutment joint 22 from colliding with the surface of the sub-frame 300 and causing scratches.

[0054] The other structures and principles of this embodiment are the same as those of Embodiment 2.

[0055] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A support tool for assisting the installation of a steering knuckle, characterized in that: The invention comprises a first abutting portion (1) for abutting against a brake on the steering knuckle side, a second abutting portion (2) for abutting against a side sub-frame opposite to the steering knuckle, a connecting shaft (3), a first connecting block (4) and an elastic member (5); the first abutting portion (1) is coaxially detachably connected to one end of the connecting shaft (3) through the first connecting block (4); the second abutting portion (2) is coaxially movably connected to the other end of the connecting shaft (3); and the elastic member (5) is sleeved on the outside of the connecting shaft (3) and limited between the first connecting block (4) and the second abutting portion (2).

2. A supporting tool for assisting the installation of a steering knuckle according to claim 1, characterized in that: A slot (20) is formed on the side wall of the second abutting portion (2), and the other end of the connecting shaft (3) is movably connected to the slot (20). A latch (21) is inserted into the other end of the connecting shaft (3) for preventing the connecting shaft (3) from slipping out of the slot (20).

3. A supporting tool for assisting the installation of a steering knuckle according to claim 2, characterized in that: A pull ring is also provided at the end of the latch pin (21).

4. A supporting tool for assisting the installation of a steering knuckle according to claim 1, characterized in that: The first connecting block (4) comprises a threaded rod (41) threadedly connected to the first abutting portion (1), and a threaded sleeve (42) threadedly connected to the other end of the threaded rod (41), and the connecting shaft (3) is fixedly connected to the threaded sleeve (42).

5. A supporting tool for assisting the installation of a steering knuckle according to claim 4, characterized in that: The first connection block (4) further comprises a positioning nut (43) threadedly connected to the threaded rod (41), and the positioning nut (43) is located between the first abutment portion (1) and the threaded sleeve (42).

6. A supporting tool for assisting the installation of a steering knuckle according to claim 1, characterized in that: The first abutment portion (1) comprises a first abutment joint (11) for abutting against the brake end face on the steering knuckle side, and a first buffer pad (12) provided at the end of the first abutment joint (11); the first abutment joint (11) is coaxially and detachably connected to one end of the connecting shaft (3) via the first connecting block (4).

7. A supporting tool for assisting the installation of a steering knuckle according to claim 6, characterized in that: The first abutment head (11) is a frustoconical abutment block, and the first buffer pad (12) is arranged on the bottom surface of the first abutment head (11).

8. A supporting tool for assisting the installation of a steering knuckle according to claim 2, characterized in that: The second abutting portion (2) comprises a second abutting joint (22) for abutting against a sub-frame cross arm, a second buffer pad (23) provided at one end of the second abutting joint (22), and a limiting sleeve (24) coaxially connected to the other end of the second abutting joint (22), the notch (20) being provided on a side wall of the second abutting joint (22), and the connecting shaft (3) passing through the limiting sleeve (24) and movably passing through the notch (20).

9. A supporting tool for assisting the installation of a steering knuckle according to claim 8, characterized in that: An end portion of the second abutment head (22) connected to one end of the second buffer pad (23) is an L-shaped abutment groove, and the second buffer pad (23) is conformally covered on the surface of the L-shaped abutment groove.

10. A supporting tool for assisting the installation of a steering knuckle according to claim 1, characterized in that: The elastic member (5) is a spring.

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