Steering system testing tool

Abstract

The utility model discloses a steering system test tool. The steering system testing tool comprises a fixing frame, an elastic assembly and a steering engine fixing assembly, the steering engine fixing assembly is used for fixing a steering engine, the elastic assembly comprises an elastic body part, an adjusting rod and a pull rod mounting base, the elastic body part is fixed to the fixing frame, the adjusting rod is connected to the elastic body part, and the pull rod mounting base is used for being connected with a pull rod of the steering engine. The adjusting rod is sleeved with the pull rod installation base, the pull rod installation base can move in the extending direction of the adjusting rod so as to change the fixing position of the pull rod installation base and the adjusting rod, and the elastic body part applies load force to the steering engine through the adjusting rod and the pull rod installation base. The elastic body part generates elastic deformation to provide loading force for the steering engine, so that steering force needing to be overcome during steering of the steering engine is simulated; and the distance between the pull rod and the elastic body part is adjusted by adjusting the position of the pull rod mounting seat on the adjusting rod, so that steering machines of different types and sizes can be adapted.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle testing, in particular to a steering system testing tool. BACKGROUND

[0002] In the design and manufacture of vehicles, performance tests need to be conducted on the parts of the vehicle, and the performance test of the steering system is a key part, including noise test, system gap test and steering force test, etc. In the steering force test of the steering system, the testing tool usually builds a related installation structure matched with the steering machine to simulate the force that needs to be overcome in the vehicle steering process.

[0003] When different types of testing machines are replaced, the related installation structure needs to be rebuilt, and the testing tool needs to be rebuilt. The testing tool has poor universality, high cost and long development cycle, and therefore needs to be improved to adapt to the steering performance test of different types of steering machines. CONTENT OF THE UTILITY MODEL

[0004] The main purpose of the present application is to provide a steering system testing tool, which aims to solve the above technical problems existing in the prior art.

[0005] To solve the above problems, the present application provides a steering system testing tool, which comprises a fixed frame, an elastic assembly, and a steering machine fixing assembly. The steering machine fixing assembly is used for fixing the steering machine. The elastic assembly comprises an elastic body part, an adjusting rod and a pull rod mounting seat. The elastic body part is fixed on the fixed frame. The adjusting rod is connected to the elastic body part. The pull rod mounting seat is used for connecting the pull rod of the steering machine. The pull rod mounting seat is sleeved outside the adjusting rod. The pull rod mounting seat can move in the extension direction of the adjusting rod to change the fixed position of the pull rod mounting seat and the adjusting rod. The elastic body part applies a load force to the steering machine through the adjusting rod and the pull rod mounting seat.

[0006] Further, the elastic body part comprises a plurality of elastic sheets, and the plurality of elastic sheets are stacked in the extension direction of the adjusting rod. The adjusting rod is connected to the outermost elastic sheet.

[0007] Further, the pull rod mounting seat comprises a pull rod connecting part and a sleeving part. The pull rod connecting part has a pull rod through hole. The sleeving part has a sleeving hole. The pull rod connecting part is connected with the pull rod through the pull rod through hole. The sleeving part is sleeved on the adjusting rod through the sleeving hole.

[0008] Further, the turning system test tool further comprises a mounting base fixed to the middle part of the fixed frame, a plurality of first grooves are arranged on the surface of the mounting base, the first grooves are arranged on the surface of the mounting base and the steering machine fixing assembly, and the steering machine fixing assembly is connected to the mounting base through the first grooves.

[0009] Further, the steering machine fixing assembly comprises a column, a base and a fixing bolt, the fixing bolt is arranged between the base and the first groove, one end of the column is connected to the base, and the other end of the column is connected to the steering machine.

[0010] Further, the base is provided with a plurality of spaced second grooves, the second grooves are arranged on the opposite surfaces of the base, and the fixing bolt is arranged between the first groove and the second groove.

[0011] Further, the steering machine fixing assembly further comprises a clamping block, the clamping block is arranged in the first groove, and the fixing bolt is arranged between the second groove and the first groove to be connected to the clamping block.

[0012] Further, the extension direction of the second groove is perpendicular to the extension direction of the first groove, and the second groove at least partially covers the first groove.

[0013] Further, the first groove comprises a top cavity and a bottom cavity, and the size of the top cavity is smaller than the size of the bottom cavity.

[0014] Further, the number of the elastic assemblies is two, and the two elastic assemblies are fixedly connected to the opposite sides of the fixed frame.

[0015] Compared with the prior art, the turning system test tool comprises a fixed frame, an elastic assembly and a steering machine fixing assembly, the steering machine fixing assembly is used for fixing the steering machine, the elastic assembly comprises an elastic body part, an adjusting rod and a pull rod mounting seat, the elastic body part is fixed on the fixed frame, the adjusting rod is connected to the elastic body part, the pull rod mounting seat is used for connecting the pull rod of the steering machine, the pull rod mounting seat is sleeved outside the adjusting rod, the pull rod mounting seat can move in the extension direction of the adjusting rod to change the fixed position of the pull rod mounting seat and the adjusting rod, and the elastic body part applies a load force to the steering machine through the adjusting rod and the pull rod mounting seat. Through the above-mentioned implementation, the elastic body part is subjected to the action force of the pull rod mounting seat and the adjusting rod when the steering machine works, so that the elastic body part is elastically deformed, and the elastic force generated by the elastic body part is reacted to the steering machine, so as to simulate the steering force that needs to be overcome when the steering machine steers; the position of the pull rod mounting seat on the adjusting rod can adapt to different types and sizes of steering machines, so that the turning system test tool can adapt to the performance test of different types of steering machines. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of an embodiment of the steering system testing fixture provided in this application;

[0018] Figure 2 This is a schematic diagram of an embodiment of the elastic component provided in this application;

[0019] Figure 3 This is a schematic diagram of an embodiment of the tie rod mounting bracket provided in this application;

[0020] Figure 4 yes Figure 1 A magnified schematic diagram of the portion of the steering system test fixture within the dashed box shown;

[0021] Figure 5 This is a schematic diagram of an embodiment of the steering gear fixing assembly provided in this application;

[0022] Figure 6 yes Figure 4 A magnified schematic diagram of the structure within the dashed box.

[0023] Reference numerals: Steering system test fixture 1; Fixed frame 10; Elastic component 20; Elastic body 210; Elastic sheet 2110; Spring clip 2120; Roller ear 2130; Adjusting rod 220; Tie rod mounting base 230; Tie rod connecting part 2310; Tie rod through hole 2311; Sleeve part 2320; Sleeve hole 2321; Steering gear fixing assembly 30; Column 310; Base 320; Second groove 3210; Fixing bolt 330; Snap block 340; Mounting base 40; First groove 410; Top cavity 4110; Bottom cavity 4120. Detailed Implementation

[0024] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application; the use of the terms "including," "comprising," or "having" and variations thereof herein is intended to be broad and encompass the terms "consisting of" and "consisting essentially of" and variations thereof. Unless otherwise required by context, singular terms shall include pluralities and vice versa. Unless otherwise required by context, the use herein of the singular is also to be construed as a use of the plural and vice versa.

[0026] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise explicitly and specifically limited.

[0027] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearance of the phrase in various places in the specification is not necessarily all referring to the same embodiment, or to a particular embodiment, or to a particular set of embodiments. It will be explicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0028] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are a "or" relationship.

[0029] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two), and similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0030] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the embodiments of the present application.

[0031] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0032] In the design and manufacturing of vehicles, it is necessary to conduct performance tests on vehicle components. The performance test of the steering system is a key part of this, including noise testing, system clearance testing, and steering force testing. When testing the steering force of the steering system, the test fixture is usually set up with a relevant installation structure matched with the steering gear to simulate the forces that need to be overcome during the vehicle's steering process.

[0033] When changing to a different type of testing machine, the relevant installation structure needs to be rebuilt, and the testing fixtures need to be rebuilt. The testing fixtures have poor versatility, high cost, and long development cycle. Therefore, the testing fixtures need to be improved to adapt to the steering performance testing of different types of steering machines.

[0034] To address the related technical problems, this utility model provides a steering system testing fixture, see [link to relevant documentation]. Figure 1 , Figure 1 This is a schematic diagram of an embodiment of the steering system testing fixture provided in this application.

[0035] The steering system test fixture 1 includes a fixed frame 10, an elastic component 20, and a steering gear fixing component 30. The steering gear fixing component 30 is used to fix the steering gear. The elastic component 20 includes an elastic body part 210, an adjusting rod 220, and a tie rod mounting seat 230. The elastic body part 210 is fixed on the fixed frame 10. The adjusting rod 220 is connected to the elastic body part 210. The tie rod mounting seat 230 is used to connect the tie rod of the steering gear. The tie rod mounting seat 230 is sleeved on the outside of the adjusting rod 220. The tie rod mounting seat 230 can move in the extension direction of the adjusting rod 220 to change the fixed position of the tie rod mounting seat 230 and the adjusting rod 220. The elastic body part 210 applies a load force to the steering gear through the adjusting rod 220 and the tie rod mounting seat 230.

[0036] When the steering machine works, the elastic body part 210 is subjected to the force through the pull rod mounting seat 230 and the adjusting rod 220, so that the elastic body part 210 is elastically deformed, and the elastic force generated by the elastic body part 210 acts on the steering machine, thereby simulating the steering force required to be overcome by the steering machine when steering; the position of the adjusting pull rod mounting seat 230 on the adjusting rod 220 can adapt to different types and sizes of steering machines, so that the steering system test tool 1 can adapt to different types of steering machine performance tests.

[0037] In some embodiments, the fixed frame 10 is in the shape of a rectangle as a whole, and can also be in the shape of a square, etc., and the fixed frame 10 is provided with an opening at the top for installation. The elastic body part 210 is arranged along the width direction of the fixed frame 10, and the two ends of the elastic body part 210 are connected to the opposite sides of the fixed frame 10; the steering machine fixing assembly 30 is fixed to the bottom of the fixed frame 10, and the steering machine fixing assembly 30 is located in the middle of the fixed frame 10 in the length direction to be spaced from the elastic assembly 20. Preferably, the adjusting rod 220 is connected to the middle of the elastic body part 210 and extends towards the steering machine fixing assembly 30, so that the steering machine can better exert force on the elastic body part 210 through the adjusting rod 220, and the pull rod of the steering machine extends towards the elastic assembly 20 to be connected to the pull rod mounting seat 230; when different types of steering machines are replaced for testing, only the position of the pull rod mounting seat 230 on the adjusting rod 220 needs to be adjusted to adapt to the pull rod of different types and sizes of steering machines.

[0038] Preferably, the adjusting rod 220 is welded to a fixed block, the fixed block and the elastic body part 210 are provided with threaded holes, and the fixed block and the elastic body part 210 are connected and fixed through bolts, so that the adjusting rod 220 is connected to the elastic body part 210. Of course, the adjusting rod 220 can also be directly welded to the elastic body part 210, as long as the adjusting rod 220 and the elastic body part 210 are connected, so that the elastic body part 210 is elastically deformed through the adjusting rod 220.

[0039] Referring to Figure 2 , Figure 2 is a structural schematic diagram of an embodiment of the elastic assembly provided in the present application.

[0040] The elastic body part 210 comprises a plurality of elastic sheets 2110, which are arranged in a stack along the extension direction of the adjusting rod 220, and the adjusting rod 220 is connected to the elastic sheet 2110 at the outer layer. By increasing or decreasing the elastic sheets 2110 on the side away from the adjusting rod 220 of the elastic body part 210, the elastic force when the elastic body part 210 is elastically deformed can be changed, so as to adjust the load force applied by the elastic body part 210 to the steering machine; a plurality of spring clamps 2120 are further arranged on the elastic body part 210, which can fix and limit the plurality of elastic sheets 2110, so as to prevent the elastic sheets 2110 from moving. The elastic sheet 2110 can be a leaf spring, and the two ends of the leaf spring can be provided with eyelets 2130 connected to the fixed frame 10. Of course, the elastic sheet 2110 can also be connected to the fixed frame 10 in other ways.

[0041] It should be noted that the elastic body part 210 can also be a spring, and one end of the elastic body part 210 is fixed to the fixed frame 10, and the other end is connected to the adjusting rod 220, so that the steering machine can compress or stretch the spring through the pull rod mounting seat 230 and the adjusting rod 220, so that the elastic force generated by the elastic deformation of the spring provides a load force for the steering machine.

[0042] Referring again to Figure 3 , Figure 3 is a structural schematic diagram of an embodiment of the pull rod mounting seat provided by the present application.

[0043] The pull rod mounting seat 230 comprises a pull rod connecting part 2310 and a sleeving part 2320, the pull rod connecting part 2310 has a pull rod through hole 2311, the sleeving part 2320 has a sleeving hole 2321, the pull rod connecting part 2310 is connected to the pull rod through the pull rod through hole 2311, and the sleeving part 2320 is sleeved on the adjusting rod 220 through the sleeving hole 2321. The sleeving part 2320 is in a cylindrical shape, the pull rod of the steering machine extends into the pull rod through hole 2311 to be connected to the pull rod connecting part 2310; the pull rod connecting part 2310 and the pull rod of the steering machine can relatively rotate, so as to adjust the connection angle of the pull rod connecting part 2310 and the pull rod, thereby adapting to different types of steering machines; after the pull rod connecting part 2310 and the pull rod are adjusted to the angle, the pull rod connecting part 2310 and the pull rod are fixed, so as to ensure that the pull rod pushes and presses the pull rod connecting part 2310 outward or pulls and pulls the pull rod connecting part 2310 inward when the steering machine is tested, thereby pushing and pressing the elastic body part 210 outward or pulling and pulling the elastic body part 210 inward.

[0044] The sleeving part 2320 protrudes from the pull rod connecting part 2310 and is sleeved on the outer circumferential side of the adjusting rod 220 through the sleeving hole 2321, the adjusting rod 220 is provided with a thread, and after the sleeving part 2320 is adjusted to the connection position of the adjusting rod 220, the sleeving part 2320 is fixed through the nuts arranged on both sides of the sleeving part 2320.

[0045] Referring to Figure 4 and Figure 5 , Figure 4 is Figure 1 a partial enlarged structure diagram in the dashed box of the steering system test tool shown in FIG. 1, Figure 5 is a structure diagram of an embodiment of the steering engine fixing assembly provided by the present application.

[0046] The steering system test tool 1 further comprises a mounting base 40 fixed to the middle part of the fixed frame 10. The surface of the mounting base 40 is provided with a plurality of first grooves 410. The plurality of first grooves 410 are arranged on the surface of the mounting base 40 and the steering engine fixing assembly 30. The steering engine fixing assembly 30 is connected to the mounting base 40 through the first grooves 410.

[0047] The mounting base 40 is spaced apart from the fixed frame 10 in the length direction and the elastic assembly 20 to reserve installation space for the pull rod of the steering engine. The steering engine is fixed to the mounting base 40 through the steering engine fixing assembly 30. The first grooves 410 provide connection points for the steering engine fixing assembly 30 and the mounting base 40, so that the steering engine fixing assembly 30 can be adjusted in the fixed position on the mounting base 40 to adjust the installation position of the steering engine. Preferably, the extension direction of the first grooves 410 is the same as the extension direction of the elastic body part 210, i.e., both extend along the width direction of the fixed frame 10, and the first grooves 410 extend to both opposite sides of the mounting base 40. Of course, the extension direction of the first grooves 410 can also extend towards the length direction of the fixed frame 10.

[0048] The steering engine fixing assembly 30 comprises a column 310, a base 320 and a fixing bolt 330. The fixing bolt 330 is arranged between the base 320 and the first grooves 410. One end of the column 310 is connected to the base 320, and the other end of the column 310 is connected to the steering engine. The column 310 and the base 320 are integrally connected. The column 310 protrudes from the base 320, so that the steering engine fixing assembly 30 does not interfere with the mounting base 40 and the steering engine when they are mounted and connected. The column 310 has an internal thread inside to facilitate connection with the steering engine. The first grooves 410 provide connection space for the fixing bolt 330, which is used to connect and fix the base 320 and the mounting base 40.

[0049] The base 320 is provided with a plurality of spaced second grooves 3210 which pass through the opposite surfaces of the base 320, and the fixing bolt 330 is arranged between the first groove 410 and the second groove 3210. The second groove 3210 passes through the upper and lower surfaces of the base 320 and extends a certain length on the surface of the base 320; the width of the second groove 3210 is smaller than the diameter of the head of the fixing bolt 330, and the widths of the second groove 3210 and the first groove 410 are greater than the diameter of the shank of the fixing bolt 330, so that the fixing bolt 330 can fix the base 320 and the mounting base 40, and the fixing bolt 330 can move in the length direction of the second groove 3210 to adjust the mounting position.

[0050] The steering machine fixing assembly 30 further comprises a clamping block 340 which is arranged in the first groove 410, and the fixing bolt 330 is arranged between the second groove 3210 and the first groove 410 to connect with the clamping block 340. The size of the clamping block 340 is slightly smaller than the size of the first groove 410, and the clamping block 340 is provided with a threaded hole; the fixing bolt 330 passes through the first groove 410 and the second groove 3210 and extends into the threaded hole of the clamping block 340, and after the fixing bolt 330 is tightened, the base 320 is pressed and fixed on the mounting base 40, and the clamping block 340 and the fixing bolt 330 are connected together. It should be noted that the surface of the mounting base 40 is relatively rough, so when the fixing bolt 330 is tightened, the base 320 is tightly pressed on the surface of the mounting base 40, the friction between the base 320 and the mounting base 40 is relatively large and it is not easy to move relatively, and the clamping block 340 and the fixing bolt 330 are connected together, so the clamping block 340 is also not easy to move, so that the base 320 can be fixed; when the mounting position needs to be adjusted, the fixing bolt 330 is loosened to move the base 320 on the surface of the mounting base 40, and the clamping block 340 is moved in the first groove 410.

[0051] The extension direction of the second groove 3210 is perpendicular to the extension direction of the first groove 410, and the second groove 3210 at least partially covers the first groove 410. When the clamping block 340 and the base 320 do not move in the extension direction of the first groove 410, the base 320 can also be moved in the direction of the second groove 3210, so that the mounting position of the steering machine fixing assembly 30 and the steering machine can be adjusted in the extension direction of the second groove 3210.

[0052] In some embodiments, the number of the second recesses 3210 is four, which are arranged at the four corners of the base 320 respectively, so as to increase the connection stability of the base 320, and the number of the fixing bolts 330 is also four, which are arranged in the two first recesses 410 to fix the base 320 on the mounting base 40. Of course, the size of the base 320 can be adjusted so that the fixing bolts 330 are arranged in multiple first recesses 410 to fix the base 320. By adjusting the position of the fixing bolts 330 in the second recesses 3210, the mounting position of the steering machine can be adjusted to a certain extent. Of course, the number of the second recesses 3210 can also be other numbers, such as two, six, etc., and the number of the fixing bolts 330 is adjusted accordingly, which is determined according to the specific situation.

[0053] Referring again to Figure 1 and Figure 6 , Figure 1 is an embodiment structure schematic diagram of the steering system test tool provided by the present application, Figure 6 is Figure 4 the enlarged structure schematic diagram in the dashed box in FIG. 4.

[0054] The first recess 410 includes a top cavity 4110 and a bottom cavity 4120, and the size of the top cavity 4110 is smaller than that of the bottom cavity 4120, so that the first recess 410 as a whole is in the shape of a convex character. The size of the clamping block 340 is slightly smaller than that of the bottom cavity 4120, and the size of the clamping block 340 is greater than that of the top cavity 4110, so that the clamping block 340 is clamped in the bottom cavity 4120, avoiding the clamping block 340 from sliding out of the top opening of the first recess 410. When it is necessary to greatly adjust the steering machine fixing assembly 30 on the mounting base 40, the clamping block 340 can be slid out of the end of the first recess 410 and placed in the other first recess 410, and at the same time, the base 320 is moved to the corresponding first recess 410, so as to greatly adjust the mounting position of the steering machine.

[0055] The number of the elastic assemblies 20 is two, the two elastic assemblies 20 are fixedly connected to opposite sides of the fixed frame 10, and the two elastic assemblies 20 are connected to two pull rods of the steering machine. When the steering machine is tested, the steering machine drives one of the pull rods to push the pull rod mounting seat 230 to the outside of the fixed frame 10 to push the elastic body part 210, and the steering machine drives the other pull rod to pull the pull rod mounting seat 230 to the inside of the fixed frame 10 to pull the elastic body part 210, so that the elastic force generated by the elastic deformation of the elastic body part 210 is reacted to the steering machine, thereby simulating the steering force required to be overcome by the steering machine when the steering machine is steered. The number of the steering machine fixing assemblies 30 is also set to be multiple, and the steering machine fixing assemblies 30 are distributed on both sides of the mounting base 40 and are used for fixing the steering machine on both sides. In some embodiments, the number of the steering machine fixing assemblies 30 is four, two steering machine fixing assemblies 30 are arranged on each side of the mounting base 40, and the steering machine is fixed by the multiple-point mounting, so as to better adapt to different types of steering machines. Of course, the number of the steering machine fixing assemblies 30 can also be other numbers, for example, two or six, and the specific number is determined according to the situation.

[0056] In summary, the steering system test tool 1 of the utility model utilizes the elastic force generated by the elastic deformation of the elastic body part 210 to simulate the load force received by the steering machine when the steering machine is steered, the number of the elastic sheets 2110 is increased or decreased to adjust the elastic force of the elastic body part 210, the fixed position of the pull rod mounting seat 230 on the adjusting rod 220 is adjusted, so that the pull rod mounting seat 230 is connected to the pull rod of the steering machine of different types and sizes, the first groove 410 and the second groove 3210 are arranged to easily adjust the position of the steering machine fixing assembly 30, the mounting position of the steering machine on the fixed frame 10 is adjusted, so as to adapt to the mounting of the steering machine of different types and sizes. The steering system test tool 1 of the utility model has the advantages of simple structure, low cost, easy to build and strong universality, and can be used for the steering performance test of different types of steering machines.

[0057] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the description of the present application. Especially, as long as there is no structural conflict, each technical feature mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A steering system test fixture, characterized by, The turning system test tool comprises a fixed frame, an elastic assembly, and a steering machine fixing assembly for fixing a steering machine, the elastic assembly comprises an elastic body part, an adjusting rod, and a pull rod mounting seat, the elastic body part is fixed on the fixed frame, the adjusting rod is connected to the elastic body part, and the pull rod mounting seat is used for connecting a pull rod of the steering machine, the pull rod mounting seat is sleeved outside the adjusting rod, the pull rod mounting seat can move in the extension direction of the adjusting rod to change the fixed position of the pull rod mounting seat and the adjusting rod, and the elastic body part applies a load force to the steering machine through the adjusting rod and the pull rod mounting seat.

2. The test fixture of claim 1, wherein, The elastic body part comprises a plurality of elastic sheets, and the plurality of elastic sheets are arranged in a stacked manner along the extension direction of the adjusting rod, and the adjusting rod is connected to the elastic sheet on the outer layer.

3. The steering system test fixture of claim 1, wherein, The pull rod mounting seat comprises a pull rod connecting part and a sleeving part, the pull rod connecting part has a pull rod through hole, the sleeving part has a sleeving hole, the pull rod connecting part is connected with the pull rod through the pull rod through hole, and the sleeving part is sleeved on the adjusting rod through the sleeving hole.

4. The steering system test fixture of claim 1, wherein, The turning system test tool further comprises a mounting base, the mounting base is fixed to the middle part of the fixed frame, a plurality of first grooves are arranged on the surface of the mounting base in a spaced manner, the plurality of first grooves are arranged on the surface connected with the steering machine fixing assembly of the mounting base, and the steering machine fixing assembly is connected with the mounting base through the first grooves.

5. The test fixture of claim 4, wherein, The steering machine fixing assembly comprises a stand, a base, and a fixing bolt, the fixing bolt is arranged between the base and the first groove, one end of the stand is connected with the base, and the other end of the stand is connected with the steering machine.

6. The test fixture of claim 5, wherein, The base is provided with a plurality of spaced second grooves, the second grooves penetrate through the opposite surfaces of the base, and the fixing bolt is arranged between the first groove and the second groove.

7. The test fixture of claim 6, wherein, The steering machine fixing assembly further comprises a clamping block, the clamping block is located in the first groove, and the fixing bolt is arranged between the second groove and the first groove to be connected with the clamping block.

8. The test fixture of claim 6, wherein, The extension direction of the second groove is perpendicular to the extension direction of the first groove, and the second groove at least partially covers the first groove.

9. The test fixture of claim 4, wherein, The first groove comprises a top cavity and a bottom cavity, and the size of the top cavity is smaller than that of the bottom cavity.

10. The test fixture of any one of claims 1 to 9, wherein, The number of the elastic assemblies is two, and the two elastic assemblies are fixedly connected to the opposite sides of the fixed frame. The turning system test tool comprises a fixed frame, an elastic assembly, and a steering machine fixing assembly for fixing a steering machine, the elastic assembly comprises an elastic body part, an adjusting rod, and a pull rod mounting seat, the elastic body part is fixed on the fixed frame, the adjusting rod is connected to the elastic body part, and the pull rod mounting seat is used for connecting a pull rod of the steering machine, the pull rod mounting seat is sleeved outside the adjusting rod, the pull rod mounting seat can move in the extension direction of the adjusting rod to change the fixed position of the pull rod mounting seat and the adjusting rod, and the elastic body part applies a load force to the steering machine through the adjusting rod and the pull rod mounting seat.

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