A locking device for a steering knuckle arm

Abstract

The utility model provides a locking device for the vertical arm of steering gear, include: fixed support, clamping component has at least two clamping pieces, each clamping piece with fixed support movably connected, form the spacing for placing the vertical arm of steering gear between at least two clamping pieces, clamping piece is used for with the vertical arm of steering gear abuts, adjust at least one clamping piece moves opposite fixed support to adjust the size of spacing, each clamping piece is correspondingly provided with a locking assembly, locking assembly with fixed support movably connected, part locking assembly movably sets up opposite fixed support to make locking assembly have the locking position of locking clamping piece on fixed support. Can adjust the position of clamping piece on fixed support according to the model of the vertical arm of steering gear, improve the application scope of locking device, can adjust the position of clamping assembly on fixed support according to the test demand, to dynamically adjust the locking degree of clamping assembly, and then stabilize the vertical arm of steering gear.

Description

Technical Field

[0001] This utility model relates to the field of steering gear testing technology, and more specifically, to a locking device for a steering gear drop arm. Background Technology

[0002] As a core component of the steering system, the steering gear directly affects the vehicle's steering response and driving experience. Testing and verification of the steering gear is a crucial step in the automotive R&D process, especially performance testing under extreme conditions and long-term durability trials, which place high demands on the steering gear.

[0003] Currently, when conducting bench tests on steering gears, the fixing of the drop arm mainly relies on traditional fixtures and the single pendulum motor of the equipment. Traditional fixtures often suffer from lateral clamping, leading to deviations in test results, and they are difficult to meet the testing requirements of various steering gear models.

[0004] There is currently no effective solution to the technical problems of poor stability and poor applicability of the existing steering gear vertical arm fixing method. Utility Model Content

[0005] The main objective of this invention is to provide a locking device for the steering gear drop arm, so as to solve the technical problems of poor stability and poor applicability of the existing steering gear drop arm fixing methods.

[0006] To achieve the above objectives, according to one aspect of the present invention, a locking device for a steering gear drop arm is provided, comprising: a fixed support for connection to a test bench; a clamping assembly having at least two clamping members, each clamping member being movably connected to the fixed support, forming a limiting space for placing the steering gear drop arm between the at least two clamping members, the clamping members abutting against the steering gear drop arm, and adjusting the movement of at least one clamping member relative to the fixed support to adjust the size of the limiting space; and a locking assembly corresponding to each clamping member, the locking assembly being movably connected to the fixed support, and a portion of the locking assembly being movably disposed relative to the fixed support to provide a locking position for locking the clamping member onto the fixed support and an unlocking position for unlocking the clamping member. When a clamping member is in the unlocking position, operating the corresponding unlocked clamping member allows the unlocked clamping member to move relative to the other clamping member to adjust the size of the limiting space.

[0007] Furthermore, the fixed support has two mounting slots for accommodating the clamping components, which are spaced apart along the length of the fixed support. When the locking assembly is in the locked position, a portion of the locking assembly extends into the mounting slot and locks the clamping components.

[0008] Furthermore, the fixed support includes: a support member having a base plate and two side plates, the two side plates being spaced apart along the length of the base plate; two pressure plates, each corresponding to one of the two side plates, the pressure plates being connected to the side plates, and a mounting groove being formed between the pressure plates and the base plate; and a locking assembly being movably connected to the pressure plates, wherein when the locking assembly is in the locked position, a portion of the locking assembly passes through the pressure plate and extends into the mounting groove to abut against the clamping member.

[0009] Furthermore, the locking assembly includes: a fastening nut, which is connected to the side of the pressure plate opposite to the side plate, and is coaxially arranged with the through hole on the side plate, the through hole communicating with the mounting groove; and a fastening bolt, which is threadedly connected to the fastening nut, and can extend into the mounting groove through the through hole.

[0010] Furthermore, the locking assembly includes a fastening bolt, which is threadedly connected to a threaded hole on the side plate. The threaded hole is connected to a mounting groove, and the fastening bolt can extend into the mounting groove through the threaded hole.

[0011] Furthermore, the locking device also includes: a first pad, which is movably disposed between the clamping member and the pressure plate, and the pressure plate is pressed against the clamping member through the first pad; a second pad, which is connected to the base plate, and the base plate is pressed against the clamping member through the second pad; when the locking assembly is in the locking position, part of the locking assembly passes through the pressure plate and abuts against the clamping member through the first pad.

[0012] Furthermore, the locking device also includes: a third pad, which is detachably connected to the first pad and is located between the first pad and the pressure plate; when the locking assembly is in the locked position, a portion of the locking assembly passes through the pressure plate and abuts against the third pad.

[0013] Furthermore, the locking device also includes an adjusting member, which is movably connected to the side plate and can extend into the mounting groove through the side plate to push the clamping member to move.

[0014] Furthermore, the adjusting component is an adjusting screw or adjusting bolt, and the adjusting component is threadedly connected to the side plate.

[0015] Furthermore, the clamping element has an arcuate surface for abutting against the steering gear drop arm.

[0016] In this invention, both the locking assembly and the clamping member are movably connected to the fixed support, forming a limiting space between at least two clamping members. The size of this limiting space can be changed by adjusting the position of the clamping member on the fixed support. The locking assembly is used to lock the clamping member onto the fixed support. In this solution, the position of the clamping member on the fixed support can be adjusted according to the model of the steering gear drop arm to clamp the corresponding model of the steering gear drop arm, thus expanding the applicability of the locking device. Furthermore, the position of the clamping assembly on the fixed support can be adjusted according to testing requirements to dynamically adjust the locking force of the clamping assembly, thereby stabilizing and fixing the steering gear drop arm. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0018] Figure 1 A three-dimensional structural schematic diagram of the locking device in this utility model is shown;

[0019] Figure 2 A cross-sectional schematic diagram of the locking device in this utility model is shown.

[0020] The above figures include the following reference numerals:

[0021] 10. Fixed support;

[0022] 11. Supporting component; 111. Base plate; 112. Side plate; 12. Pressure plate;

[0023] 20. Clamping components;

[0024] 21. Curved surface; 22. Positioning groove;

[0025] 30. Locking assembly;

[0026] 31. Tighten the nut; 32. Tighten the bolt;

[0027] 40. First pad;

[0028] 50. Second pad;

[0029] 60. Third pad;

[0030] 70. Adjusting components;

[0031] 80. Limiting space. Detailed Implementation

[0032] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0033] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0034] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0035] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of this application is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art. In the drawings, for clarity, the thickness of layers and regions may be exaggerated, and the same reference numerals are used to denote the same devices, and therefore their description will be omitted.

[0036] Combination Figures 1 to 2 As shown, according to a specific embodiment of this application, a locking device for a steering gear drop arm is provided.

[0037] Specifically, the locking device includes a fixed support 10, a clamping assembly, and a locking assembly 30. The fixed support 10 is used to connect to a test bench. The clamping assembly has at least two clamping members 20, each clamping member 20 being movably connected to the fixed support 10. A limiting space 80 for placing the steering gear drop arm is formed between the at least two clamping members 20. The clamping members 20 are used to abut against the steering gear drop arm. Adjusting the movement of at least one clamping member 20 relative to the fixed support 10 adjusts the size of the limiting space 80. Each clamping member 20 is provided with a corresponding locking component 30. The locking component 30 is movably connected to the fixed support 10. Some locking components 30 are movably arranged relative to the fixed support 10 so that the locking component 30 has a locking position for locking the clamping member 20 onto the fixed support 10, and an unlocking position for unlocking the clamping member 20. When the clamping member 20 is in the unlocking position, operating the corresponding unlocked clamping member 20 can move the unlocked clamping member 20 relative to the other clamping member 20 to adjust the size of the limiting space 80.

[0038] In the embodiments of this application, both the locking assembly 30 and the clamping member 20 are movably connected to the fixed support 10. A limiting space 80 is formed between at least two clamping members 20. The size of the limiting space 80 can be changed by adjusting the position of the clamping member 20 on the fixed support 10. The locking assembly 30 is used to lock the clamping member 20 onto the fixed support 10. In the above solution, the position of the clamping member 20 on the fixed support 10 can be adjusted according to the model of the steering gear drop arm to clamp the corresponding model of the steering gear drop arm, thereby improving the applicability of the locking device; and the position of the clamping assembly on the fixed support 10 can be adjusted according to the testing requirements to dynamically adjust the locking force of the clamping assembly, thereby stabilizing and fixing the steering gear drop arm.

[0039] In one exemplary embodiment of this application, the fixed support 10 has two mounting slots for accommodating the clamping member 20, which are spaced apart along the length of the fixed support 10. When the locking assembly 30 is in the locked position, a portion of the locking assembly 30 extends into the mounting slot and locks the clamping member 20.

[0040] In the embodiments of this application, the mounting groove is provided to initially limit the clamping member 20, that is, the clamping member 20 is moved along the mounting groove to change the size of the limiting space 80; part of the locking component 30 extends into the mounting groove to contact the clamping member 20 and apply a locking force, that is, by adjusting the locking component 30, the locking force is directly applied to the clamping member 20, making the clamping member 20 more firmly fixed and preventing displacement or loosening caused by external forces such as vibration and torque during the test.

[0041] The fixed support 10 can be a one-piece structure or a detachable split structure.

[0042] In one exemplary embodiment of this application, such as Figure 1 As shown, the fixed support 10 is a detachable split structure. Specifically, the fixed support 10 includes a support member 11 and a pressure plate 12. The support member 11 has a base plate 111 and two side plates 112. The two side plates 112 are spaced apart along the length of the base plate 111, that is, the support member 11 has a U-shaped structure. There are two pressure plates 12, which are arranged one-to-one with the two side plates 112. The pressure plates 12 are connected to the side plates 112, and a mounting groove is formed between the pressure plates 12 and the base plate 111. The locking assembly 30 is movably connected to the pressure plate 12. When the locking assembly 30 is in the locked position, part of the locking assembly 30 passes through the pressure plate 12 and extends into the mounting groove to abut against the clamping member 20.

[0043] In the embodiments of this application, the pressure plate 12 is detachably connected to the side plate 112. Depending on the size of the clamping member 20 and the testing requirements, the clamping member 20 can be placed on the support member 11 first, and then the pressure plate 12 can be assembled. This avoids difficulties in assembling the clamping member 20 due to its size. Furthermore, different pressure plates 12 can be used according to testing requirements to ensure the stable fixation of the clamping member 20.

[0044] Furthermore, the locking assembly 30 includes a fastening nut 31 and a fastening bolt 32. The fastening nut 31 is connected to the side of the pressure plate 12 away from the side plate 112. The fastening nut 31 is coaxially arranged with the through hole on the side plate 112. The through hole is connected to the mounting groove. The fastening bolt 32 is threadedly connected to the fastening nut 31. The fastening bolt 32 can extend into the mounting groove through the through hole.

[0045] In the embodiments of this application, the fastening nut 31 is provided to increase the connection area between the fastening bolt 32 and the pressure plate 12, so that the connection of the fastening nut 31 is more stable, thereby achieving stable locking of the clamping member 20. In addition, the pressure plate 12 is fastened by threaded connection between fastening bolts 32 and fastening bolts 32, so there is no need to open additional threaded holes on the pressure plate 12, only corresponding smooth holes are needed, thereby simplifying the process and reducing processing costs.

[0046] As an alternative implementation, the locking assembly 30 includes a fastening bolt 32, which is threadedly connected to a threaded hole on the side plate 112. The threaded hole is connected to a mounting groove, and the fastening bolt 32 can extend into the mounting groove through the threaded hole.

[0047] In one exemplary embodiment of this application, the locking device further includes: a first pad 40 and a second pad 50; the first pad 40 is movably disposed between the clamping member 20 and the pressure plate 12, and the pressure plate 12 is pressed against the clamping member 20 through the first pad 40; the second pad 50 is connected to the base plate 111, and the base plate 111 is pressed against the clamping member 20 through the second pad 50; when the locking assembly 30 is in the locked position, a portion of the locking assembly 30 passes through the pressure plate 12 and abuts against the clamping member 20 through the first pad 40.

[0048] In the embodiments of this application, the clamping member 20 is located between the first pad 40 and the second pad 50, that is, the clamping member 20 directly abuts against the first pad 40 and the second pad 50. The first pad 40 and the second pad 50 can balance the distribution of compressive stress, reduce the local stress concentration phenomenon between the fixed support 10 and the clamping member 20, thereby reducing the probability of damage to the fixed support 10 and the clamping member 20, and at the same time, enable the clamping member 20 to be more firmly locked on the fixed support 10. In addition, the position and thickness of the first pad 40 and the second pad 50 can be freely adjusted according to the test requirements and the model of the steering gear drop arm.

[0049] like Figure 2 As shown, the second pad 50 has a countersunk hole, and the base plate 111 has a first threaded hole. The second pad 50 and the base plate 111 are connected by bolts. The first pad 40 is not connected to the pressure plate 12. The clamping member 20 of the first pad 40 is moved by the movement of the fastening bolt 32, thereby locking the clamping member 20 in the mounting groove of the fixed support 10.

[0050] Preferably, both the second pad 50 and the first pad 40 are made of oil-free linear sliders, and solid lubricating particles are embedded inside the oil-free linear sliders. When adjusting the position of the clamping member 20, the fastening bolt 32 is loosened first, so that the external force drives the clamping member 20 to move relative to the oil-free linear slider. The oil-free linear slider will automatically release an appropriate amount of lubricating material to reduce the friction between the clamping member 20 and the oil-free linear slider.

[0051] Furthermore, the locking device also includes: a third pad 60, which is detachably connected to the first pad 40, and the third pad 60 is located between the first pad 40 and the pressure plate 12; when the locking assembly 30 is in the locked position, part of the locking assembly 30 passes through the pressure plate 12 and abuts against the third pad 60.

[0052] In the embodiments of this application, the third pad 60 directly abuts against the fastening bolt 32. The third pad 60 will be deformed by multiple compressions due to the position adjustment of the clamping member 20, so the third pad 60 needs to be replaced regularly to make the locking of the clamping member 20 more stable.

[0053] like Figure 2As shown, the first pad 40 is provided with a countersunk hole, the third pad 60 is provided with a second threaded hole, and the third pad 60 is connected to the first pad 40 by bolts.

[0054] In one exemplary embodiment of this application, the locking device further includes an adjusting member 70, which is movably connected to the side plate 112 and can extend into the mounting groove through the side plate 112 to push the clamping member 20 to move.

[0055] In the embodiments of this application, the clamping member 20 is finely adjusted by setting the adjusting member 70 so that the steering gear drop arm is stably clamped between the two clamping members 20.

[0056] The adjusting component 70 is a screw or bolt, and the adjusting component 70 is threadedly connected to the side plate 112.

[0057] like Figure 1 , Figure 2 As shown, the adjusting component 70 is an adjusting bolt. A nut is welded to the side of the side plate 112 opposite to the clamping component 20. The side plate 112 has a through hole that passes through the nut. The adjusting bolt is threadedly connected to the nut, and part of the adjusting bolt extends into the mounting groove to abut against the side of the clamping component 20. The side of the clamping component 20 has a positioning groove 22, and part of the adjusting bolt extends into the positioning groove 22. In addition to adjusting the position of the clamping component 20 relative to the fixed bracket, the adjusting component 70 also limits the clamping component 20 in the length direction of the fixed bracket to restrict the movement of the clamping component 20 towards the side plate 112, thereby ensuring that the steering gear drop arm is stably clamped between the two clamping components 20.

[0058] Furthermore, the clamping member 20 has an arcuate surface 21 for abutting against the steering gear vertical arm. The clamping member 20 abuts against the steering gear vertical arm through the arcuate surface 21, that is, the clamping member 20 and the steering gear vertical arm are in line contact, so as to further increase the force per unit area and make the abutment between the two more secure.

[0059] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0060] In addition to the above, it should be noted that the terms "one embodiment," "another embodiment," and "embodiment" used in this specification refer to specific features, structures, or characteristics described in connection with that embodiment, which are included in at least one embodiment described in the general description of this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this utility model.

[0061] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0062] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A locking device for a steering gear drop arm, characterized in that, include: Fixed support (10) is used to connect to the test bench; A clamping assembly having at least two clamping members (20), each clamping member (20) being movably connected to the fixed support (10), a limiting space (80) for placing a steering gear drop arm being formed between the at least two clamping members (20), the clamping members (20) being used to abut against the steering gear drop arm, and adjusting at least one clamping member (20) relative to the fixed support (10) to adjust the size of the limiting space (80); A locking assembly (30) is provided for each clamping member (20). The locking assembly (30) is movably connected to the fixed support (10). Some of the locking assemblies (30) are movably arranged relative to the fixed support (10) so that the locking assembly (30) has a locking position for locking the clamping member (20) on the fixed support (10) and an unlocking position for unlocking the clamping member (20). When the clamping member (20) is in the unlocking position, operating the corresponding unlocked clamping member (20) can move the unlocked clamping member (20) relative to the other clamping member (20) to adjust the size of the limiting space (80).

2. The locking device for the steering gear drop arm according to claim 1, characterized in that, The fixed support (10) has two mounting slots for accommodating the clamping member (20), the two mounting slots being spaced apart along the length of the fixed support (10). When the locking assembly (30) is in the locked position, a portion of the locking assembly (30) extends into the mounting slot and locks the clamping member (20).

3. The locking device for the steering gear drop arm according to claim 2, characterized in that, The fixed support (10) includes: The support member (11) has a base plate (111) and two side plates (112), the two side plates (112) being spaced apart along the length direction of the base plate (111); Pressure plate (12), there are two pressure plates (12), the two pressure plates (12) are arranged one-to-one with the two side plates (112), the pressure plate (12) is connected to the side plate (112), and the mounting groove is formed between the pressure plate (12) and the bottom plate (111); The locking assembly (30) is movably connected to the pressure plate (12). When the locking assembly (30) is in the locking position, a portion of the locking assembly (30) passes through the pressure plate (12) and extends into the mounting groove to abut against the clamping member (20).

4. The locking device for the steering gear drop arm according to claim 3, characterized in that, The locking assembly (30) includes: A fastening nut (31) is connected to the side of the pressure plate (12) away from the side plate (112). The fastening nut (31) is coaxially arranged with the through hole on the side plate (112), and the through hole is connected to the mounting groove. A fastening bolt (32) is threadedly connected to the fastening nut (31), and the fastening bolt (32) can extend into the mounting groove through the through hole.

5. The locking device for the steering gear drop arm according to claim 3, characterized in that, The locking assembly (30) includes: A fastening bolt (32) is threadedly connected to a threaded hole on the side plate (112). The threaded hole is connected to the mounting groove, and the fastening bolt (32) can extend into the mounting groove through the threaded hole.

6. The locking device for the steering gear drop arm according to claim 3, characterized in that, The locking device further includes: A first pad (40) is movably disposed between the clamping member (20) and the pressure plate (12), and the pressure plate (12) is pressed against the clamping member (20) through the first pad (40); The second pad (50) is connected to the base plate (111), and the base plate (111) is pressed against the clamping member (20) through the second pad (50); When the locking assembly (30) is in the locking position, a portion of the locking assembly (30) passes through the pressure plate (12) and then abuts against the clamping member (20) through the first pad (40).

7. The locking device for the steering gear drop arm according to claim 6, characterized in that, The locking device further includes: A third pad (60) is detachably connected to the first pad (40) and is located between the first pad (40) and the pressure plate (12). When the locking assembly (30) is in the locking position, a portion of the locking assembly (30) passes through the pressure plate (12) and abuts against the third pad (60).

8. The locking device for the steering gear drop arm according to claim 3, characterized in that, The locking device further includes: An adjusting member (70) is movably connected to the side plate (112). The adjusting member (70) can extend into the mounting groove through the side plate (112) to push the clamping member (20) to move.

9. The locking device for the steering gear drop arm according to claim 8, characterized in that, The adjusting component (70) is an adjusting screw or adjusting bolt, and the adjusting component (70) is threadedly connected to the side plate (112).

10. The locking device for a steering gear drop arm according to any one of claims 1-9, characterized in that, The clamping member (20) has an arcuate surface (21) for abutting against the steering gear arm.

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