CN220039838U - Pull rod structure for testing steering gear - Google Patents

Abstract

The utility model discloses a pull rod structure for testing a steering gear, which comprises a rod body, wherein the rod body comprises: the outer sleeve comprises a solid section and a pipe body section which are connected in the axial direction, and the inner wall of the pipe body section is provided with an internal thread; the outer wall of pull rod has the external screw thread to make pull rod and body section screw thread fit, be provided with first retaining member on the pull rod, first retaining member and body section keep away from the tip cooperation of entity section, with the first end of locking pull rod. Through carrying out split type design to the body of rod, make the pull rod of body of rod carry out threaded connection with the outer tube to can adjust the length of the body of rod, and then make the body of rod carry out the adaptation with the steering gear of different grade type, need not to change the steering gear of new type of adaptation of new body of rod, like this, can save tester's test time, reduce the loss of body of rod and foil gage, save test cost, simultaneously, use same pull rod, can also reduce the introduction of variable, thereby reduced test error, make test data more accurate.

Description

Pull rod structure for testing steering gear

Technical Field

The utility model relates to the technical field of vehicle part testing, in particular to a pull rod structure for testing a steering gear.

Background

When a new vehicle-type steering gear is designed, a designed steering gear is required to be subjected to a rack force test, and when the test is performed, a strain gauge is required to be stuck on an inner pull rod matched with the steering gear so as to test whether the rack force of the steering gear meets the requirement.

In the prior art, the testing mode is to prepare a new inner pull rod matched with the new inner pull rod and scrape an electroplated layer on the new inner pull rod and paste a new strain gauge when testing a newly designed steering gear of a new vehicle type each time, and then install the new inner pull rod pasted with the strain gauge on a tensile testing machine for calibration.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides a pull rod structure for testing a steering gear, which can save testing time, reduce consumption of a pull rod and a strain gauge, save testing cost and reduce testing errors.

According to the embodiment of the utility model, the pull rod structure for testing the steering gear comprises a rod body, wherein the rod body comprises: the outer sleeve comprises a solid section and a pipe body section which are connected in the axial direction, and the inner wall of the pipe body section is provided with an internal thread; the outer wall of pull rod has the external screw thread to make pull rod and body section screw thread fit, be provided with first retaining member on the pull rod, first retaining member and body section keep away from the tip cooperation of entity section, with the first end of locking pull rod.

According to the pull rod structure for testing the steering gear, disclosed by the embodiment of the utility model, the pull rod of the rod body is in threaded connection with the outer sleeve through split design, so that the aim of adjusting the whole length of the rod body is fulfilled, the rod body can be matched with different types of steering gears without changing a new rod body to adapt to the new types of steering gears, thus the testing time of a tester can be saved, the loss of the rod body and a strain gauge can be reduced, the testing cost can be saved, and meanwhile, the same pull rod can be used for reducing the introduction of variables, so that the testing error is reduced, and the testing data is more accurate.

In addition, the pull rod structure for testing the steering gear can also have the following additional technical characteristics:

in some embodiments, the outer diameter of the pipe section is less than the diameter of the solid section.

In some embodiments, the first locking member is a lock nut.

In some embodiments, the outer side of the pipe section has a clamping structure with a clamping surface, the clamping surface is provided with a plurality of clamping surfaces, the plurality of clamping surfaces are arranged around the circumference of the pipe section, and two adjacent clamping surfaces are connected.

In some embodiments, the pull rod structure for testing a steering gear further comprises a first steering joint, the outer sleeve further comprises a spherical hinge section, the spherical hinge section is connected to one end of the solid section away from the pipe body section, and the first steering joint is hinged with the spherical hinge section.

In some embodiments, the ball pivot segment includes a ball head and a transition segment connected between the ball head and the solid segment, the transition segment having a diameter that gradually increases in a direction from the ball head to the solid segment.

In some embodiments, the first steering joint comprises a ball head inner seat and a stud, the ball head inner seat is provided with a ball hinge groove hinged with the ball head, the stud is connected to one end of the ball head inner seat away from the outer sleeve, and the stud is used for being in transmission connection with the steering gear.

In some embodiments, the outer wall of the stud has external threads that mate with the diverter threads.

In some embodiments, the outer diameter of the ball head inner seat gradually decreases in a direction of the first steering joint toward the outer sleeve.

In some embodiments, the pull rod structure for testing the steering gear further comprises a second steering joint, the second steering joint is in transmission connection with the pull rod, and a second locking piece is arranged on the second steering joint and used for locking the second end of the pull rod.

In some embodiments, the second locking member is a lock nut.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

FIG. 1 is a front view of a tie rod structure for diverter testing in accordance with an embodiment of the present utility model;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

fig. 3 is a schematic diagram of a structure for diverter testing according to an embodiment of the present utility model.

Reference numerals:

100. the pull rod structure is used for testing the steering gear;

1. a rod body; 11. an outer sleeve; 12. a pull rod; 111. a solid segment; 112. a pipe section; 113. a spherical hinge section; 1121. a clamping structure; 1131. ball head; 1132. a transition section;

2. the strain gauge is adhered to the position;

3. a first steering joint; 31. an inner seat of the ball head; 32. a stud; 311. spherical hinge grooves;

4. a first locking member; 5. and the second locking piece.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

A tie rod structure 100 for diverter testing according to an embodiment of the present utility model is described below with reference to fig. 1-3.

As shown in fig. 1 to 3, a tie rod structure 100 for testing a steering gear according to an embodiment of the present utility model includes a rod body 1, the rod body 1 including: the outer sleeve 11 and the pull rod 12, wherein the outer sleeve 11 comprises a solid section 111 and a pipe body section 112 which are connected in the axial direction, and the inner wall of the pipe body section 112 is provided with internal threads; the outer wall of the pull rod 12 is externally threaded such that the pull rod 12 is threadedly engaged with the pipe section 112, the pull rod 12 being provided with a first locking member 4, the first locking member 4 being engaged with the end of the pipe section 112 remote from the solid section 111 to lock the first end of the pull rod 12. In this embodiment, the rod body 1 and the steering gear are matched to enable the steering gear to be tested normally, wherein the pull rod 12 in the rod body 1 is provided with external threads, the inner wall of the pipe body section 112 of the outer sleeve 11 is provided with internal threads, one end of the pull rod 12 close to the pipe body section 112 is a first end, the first end of the pull rod 12 and the pipe body section 112 of the outer sleeve 11 are in threaded connection, and thus the pull rod 12 and the pipe body section 112 relatively rotate, the whole length of the rod body 1 can be adjusted, so that the rod body 1 can be matched with different types of steering gears for testing, the universality and universality of the rod body 1 are enhanced, meanwhile, in order to ensure the connection stability of the threaded connection position, in order to ensure that the adjusted rod body 1 cannot deform or break in the testing, the threaded connection of the pull rod 12 and the pipe body section 112 is locked by arranging the first locking piece 4 on the pull rod 12, and the separation of the pull rod 12 and the pipe body section 112 is prevented, and the normal testing is ensured.

Further, in the installation process, the length of the rod body 1 is adjusted in a left-right half adjusting mode, namely, the pull rod 12 and the outer sleeve 11 simultaneously rotate relatively until no shake occurs between the pull rod 12 and the outer sleeve 11, and finally, the rod body is locked through the first locking piece 4.

In some embodiments, such as shown in fig. 1, a strain gauge attachment 2 is provided on the tie rod 1, and a strain gauge can be attached to the tie rod 12 to detect the rack force of the tested steering gear.

According to the pull rod structure 100 for testing the steering gear, the pull rod 12 of the rod body 1 is in threaded connection with the outer sleeve 11 through split design of the rod body 1, so that the whole length of the rod body 1 is adjusted, the rod body 1 can be matched with different types of steering gears, a new rod body 1 does not need to be replaced to be matched with a new type of steering gears, thus test time of a tester can be saved, loss of the rod body 1 and a strain gauge is reduced, test cost is saved, and meanwhile, the same pull rod 12 is used, variable introduction can be reduced, test errors are reduced, and test data are more accurate.

In one embodiment of the utility model, as shown in fig. 1-3, the outer diameter of the tube section 112 is smaller than the diameter of the solid section 111 to mate with the tie rod 12 and the first locking member 4.

In one embodiment of the present utility model, as shown in fig. 1 to 3, the first locking member 4 is a lock nut. The locking nut can be used for effectively fastening the connection between the pull rod 12 and the outer sleeve 11, so that the situation that the pull rod 12 and the outer sleeve 11 rotate relatively in the testing process to separate and fall off the connection part is avoided.

In one embodiment of the utility model, as shown in fig. 1-3, the outer side of the pipe section 112 has a clamping structure 1121, the clamping structure 1121 has a clamping surface, the clamping surface is provided with a plurality of clamping surfaces, the plurality of clamping surfaces are arranged around the circumference of the pipe section 112, and adjacent two clamping surfaces are connected. In this embodiment, the clamping structure 1121 can facilitate the testing personnel to lock the connection between the pull rod 12 and the pipe body section, for example, as shown in fig. 2 and 3, the clamping structure 1121 has six clamping surfaces, so that the outer side surface of the pipe body section 112 is formed into a hexagonal mating surface, meanwhile, the first locking member is a locking nut, when the locking nut is locked, the testing personnel can use two wrenches to respectively clamp the clamping structure 1121 and the locking nut, and apply opposite forces to the two wrenches, so that the locking nut and the pipe body section 112 are abutted against the end surface of the solid section 111, and further increase the moment between the locking nut and the end surface, thereby achieving the locking effect.

In some embodiments, the first locking member 4 may be provided as other fasteners, which are not particularly limited herein.

In one embodiment of the present utility model, as shown in fig. 1 to 3, the pull rod structure 100 for testing a steering gear further includes a first steering joint 3, the outer sleeve 11 further includes a spherical hinge section 113, the spherical hinge section 113 is connected to an end of the solid section 111 remote from the pipe section 112, and the first steering joint 3 is hinged to the spherical hinge section 113. In this embodiment, the first steering joint 3 is used for connecting the rod body 1 and the steering gear, wherein the outer sleeve 11 of the rod body 1 is hinged with the first steering joint 3 through the spherical hinge section 113, so that when testing is performed, the spherical hinge joint can absorb vibration generated during testing, the influence of the vibration on the steering gear and the rod body 1 is reduced, meanwhile, the spherical hinge joint can enable the connection between the rod body 1 and the steering gear to have a certain activity, and stress concentration at the joint is avoided, so that damage to the rod body 1 is caused.

In one embodiment of the present utility model, as shown in fig. 1 to 3, the spherical hinge segment 113 includes a ball head 1131 and a transition segment 1132, the transition segment 1132 is connected between the ball head 1131 and the solid segment 111, and the diameter of the transition segment 1132 gradually increases in the direction from the ball head 1131 to the solid segment 111. In this embodiment, the transition section 1132 is configured to facilitate the quick connection between the rod body 1 and the outer sleeve 11, for example, as shown in fig. 2, the transition section 1132 is an inclined plane, and in the direction from the ball head 1131 to the solid section 111, the inclined plane extends toward the outer side of the outer sleeve 11, so that, on one hand, the inclined plane can play a role in guiding connection, and on the other hand, the structural strength of the outer sleeve 11 in the axial direction can be enhanced.

In one embodiment of the present utility model, as shown in fig. 1 to 3, the first steering joint 3 includes a ball socket 31 and a stud 32, the ball socket 31 has a ball socket recess 311 hinged with a ball 1131, the stud 32 is connected to an end of the ball socket 31 remote from the outer sleeve 11, and the stud 32 is used for driving connection with a steering gear. In this embodiment, the spherical hinge groove 311 can cooperate with the ball 1131 to clamp and limit the ball 1131, so as to ensure the connection stability; the stud 32 is connected to the steering gear and transmits the force transmitted from the steering gear, for example, as shown in fig. 1, the diameter of the stud 32 is smaller than that of the ball socket 31, so that the stud 32 is convenient to connect to the steering gear.

Further, the outer wall of the stud 32 has an external thread which is in threaded engagement with the diverter, and the stud 32 is in threaded engagement with the diverter to ensure connection stability.

Still further, in the direction that the first steering joint 3 faces the outer sleeve 11, the outer diameter of the ball inner seat 31 gradually decreases, so that after the ball 1131 is matched with the ball inner seat 31, the ball inner seat 31 can give enough clamping force to the ball 1131, and the ball 1131 can be prevented from falling out of the ball inner seat 31, so that the connection is invalid.

In one embodiment of the present utility model, as shown in fig. 1 to 3, the tie rod structure 100 for testing a steering gear further includes a second steering joint, which is in driving connection with the tie rod 12, and on which a second locking member 5 is provided, the second locking member 5 being used for locking a second end of the tie rod 12. In this embodiment, the second steering joint is used for connecting the pull rod 12, so that the pull rod 12 is connected with the test bench of the second steering joint, and the second locking member 5 fastens the connection between the pull rod 12 and the second steering joint, so as to ensure the connection stability.

In one embodiment of the present utility model, as shown in fig. 1 to 3, the second locking member 5 is a lock nut. The locking nut can be used for effectively fastening the connection between the pull rod 12 and the second steering joint, so that the situation that the pull rod 12 and the second steering joint rotate relatively in the testing process to separate and fall off at the connection position is avoided.

Other constructions and operations of the tie rod structure 100 for diverter testing according to embodiments of the present utility model are known to those of ordinary skill in the art and will not be described in detail herein.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A pull rod structure for diverter testing, characterized by comprising a rod body (1), the rod body (1) comprising:

an outer sleeve (11), the outer sleeve (11) comprising a solid section (111) and a tube body section (112) connected in an axial direction, an inner wall of the tube body section (112) having an internal thread;

the utility model provides a pull rod (12), the outer wall of pull rod (12) has the external screw thread, so that pull rod (12) with body section (112) screw thread cooperation, be provided with first retaining member (4) on pull rod (12), first retaining member (4) with body section (112) keep away from the tip cooperation of entity section (111), in order to lock the first end of pull rod (12).

2. The tie rod structure for diverter testing according to claim 1, characterized in that the outer diameter of the tube section (112) is smaller than the diameter of the solid section (111).

3. Pull rod construction for diverter tests according to claim 1, characterized in that the first locking member (4) is a lock nut.

4. The tie rod structure for diverter testing according to claim 1, characterized in that the outer side of the pipe section (112) has a clamping structure (1121), the clamping structure (1121) has clamping surfaces, the clamping surfaces are provided in plurality, a plurality of the clamping surfaces are provided around the circumference of the pipe section (112), and adjacent two of the clamping surfaces are connected.

5. The pull rod structure for testing a steering gear according to claim 1, further comprising a first steering joint (3), wherein the outer sleeve (11) further comprises a spherical hinge section (113), the spherical hinge section (113) is connected to an end of the solid section (111) far away from the pipe section (112), and the first steering joint (3) is hinged to the spherical hinge section (113).

6. The tie rod structure for diverter testing according to claim 5, characterized in that the spherical hinge section (113) comprises a ball head (1131) and a transition section (1132), the transition section (1132) being connected between the ball head (1131) and the solid section (111), the diameter of the transition section (1132) gradually increasing in the direction of the ball head (1131) to the solid section (111).

7. The tie rod structure for testing of a steering gear according to claim 6, characterized in that the first steering joint (3) comprises a ball head inner seat (31) and a stud (32), the ball head inner seat (31) having a ball hinge groove (311) hinged with the ball head (1131), the stud (32) being connected at an end of the ball head inner seat (31) remote from the outer sleeve (11), the stud (32) being for driving connection with a steering gear; the outer wall of the stud (32) has external threads that mate with the diverter threads.

8. Tie rod structure for diverter testing according to claim 7 characterized in that the outer diameter of the ball head inner seat (31) gradually decreases in the direction of the first diverting joint (3) towards the outer sleeve (11).

9. The pull rod structure for testing a steering gear according to claim 1, further comprising a second steering joint in driving connection with the pull rod (12), wherein a second locking member (5) is arranged on the second steering joint, and the second locking member (5) is used for locking a second end of the pull rod (12).

10. Pull rod construction for diverter tests according to claim 9, characterized in that the second locking element (5) is a lock nut.