CN212844771U - Auxiliary tool for static torsion test of movable gear sleeve - Google Patents

Abstract

The utility model discloses an auxiliary fixtures for removing tooth cover static torsion test belongs to experimental frock technical field. The auxiliary tool is used for achieving the axial positioning of the first movable gear sleeve and the second movable gear sleeve which are meshed with each other, the first movable gear sleeve is connected with an external power source, the second movable gear sleeve is connected with a half shaft, the auxiliary tool is characterized by comprising a first limiting plate and a second limiting plate which are arranged at two intervals, the first movable gear sleeve and the second movable gear sleeve are abutted to the first limiting plate and the second limiting plate after being meshed with each other, and the first movable gear sleeve and the first limiting plate are connected in a rotating mode. The utility model discloses an axial positioning who removes the tooth cover subassembly has also avoided the additional friction that leads to because axial positioning simultaneously, has improved the accuracy and the reliability of test result.

Description

Auxiliary tool for static torsion test of movable gear sleeve

Technical Field

The utility model relates to a quiet experimental frock technical field that turns round especially relates to a be used for removing the quiet auxiliary fixtures who turns round the experiment of tooth cover.

Background

The differential lock is a standard assembly of an automobile drive axle at present, and static torsion tests are carried out on all parts of the differential lock to obtain corresponding static torsion strength, so that reference can be provided for development and verification of the differential lock. At present, in order to obtain the static torsion strength of the movable gear sleeve of the differential lock, a whole bridge mode is adopted for testing, the testing cost is high, the testing period is long, and meanwhile, the half shaft is always damaged first to cause the test to be ended, so that the static torsion strength of the movable gear sleeve cannot be obtained.

During actual test, utilize two to remove the tooth cover intermeshing to form and remove the tooth cover subassembly, with removing the tooth cover subassembly whole assembly to test device on, two remove the tooth cover each other and regard as the companion's test piece of other side promptly, the semi-axis adopts the material that intensity is higher to make simultaneously, ensures not finally that the semi-axis damages earlier to the quiet torsional strength who successfully obtains removing the tooth cover. However, the two movable gear sleeves are assembled on the static torque test device and need to be axially positioned, so that the two movable gear sleeves can be kept completely meshed at any time, the torque is smoothly transmitted, and the final test result is accurate and reliable. At present, no auxiliary tool for static torsion test of the movable gear sleeve is available for solving the problem of axial positioning of the movable gear sleeve.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an auxiliary fixtures for moving tooth cover static torsion test can effectively realize the axial positioning of two meshed removal tooth covers, helps obtaining accurate and reliable test result.

In order to realize the purpose, the following technical scheme is provided:

the utility model provides an auxiliary fixtures for removing tooth cover static torsion test for realize the axial positioning that intermeshing's first removal tooth cover and second removed the tooth cover, first removal tooth cover is connected with external power source, the second removes the tooth cover and is connected with the semi-axis, auxiliary fixtures includes first limiting plate and the second limiting plate that two intervals set up, first removal tooth cover with the second remove tooth cover meshing back butt in first limiting plate with between the second limiting plate, just first removal tooth cover with rotate between the first limiting plate and be connected.

Optionally, the first moving gear sleeve is rotatably connected with the first limit plate through a thrust bearing.

Optionally, the auxiliary fixtures still include the bush, the bush is hollow T type structure, including the bush body with locate the annular protruding edge of bush body one end, annular protruding edge with footstep bearing is connected, the other end of bush body with first removal tooth cover butt.

Optionally, the auxiliary tool further comprises a deep groove ball bearing, and the deep groove ball bearing is arranged between the bushing body and the first limiting plate.

Optionally, a mounting groove is formed in the side wall of the first limiting plate, and the thrust bearing and the deep groove ball bearing are both arranged in the mounting groove.

Optionally, the auxiliary tool further comprises an annular positioning plate, wherein the positioning plate is arranged on the periphery of the bushing body, so that the deep groove ball bearing is limited between the annular convex edge and the positioning plate.

Optionally, the inner ring of the positioning plate is provided with an internal thread, the outer circumferential surface of the bushing body is provided with an external thread, and the positioning plate is arranged on the bushing body through the threaded fit between the internal thread and the external thread.

Optionally, the first limiting plate and the second limiting plate are connected through a bolt structure.

Optionally, the bolt structure is provided in plurality; the bolt structures are uniformly distributed on the same circumference with the center of the first limiting plate or the center of the second limiting plate as the circle center.

Optionally, the bolt structure includes a bolt and a nut, a first through hole and a second through hole are respectively formed in the first limiting plate and the second limiting plate, the first through hole is axially communicated with the second through hole, and the bolt passes through the first through hole and the second through hole and then is locked by the nut.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model provides an auxiliary fixtures through with two intermeshing's removal tooth cover spacing between first limiting plate and second limiting plate, realized axial positioning, ensure that two remove the tooth cover meshing completely, the moment of torsion can be smoothly transmitted to the second by first removal tooth cover; meanwhile, the first movable gear sleeve is rotationally connected with the first limiting plate, so that additional friction between the first movable gear sleeve and the first limiting plate caused by axial positioning is avoided, that is, torque output by an external power source can be completely transmitted to the first movable gear sleeve, a static torque test is smoothly completed, and the accuracy and reliability of a test result are improved; the auxiliary tool is simple in structure, convenient to install and low in test cost.

Drawings

Fig. 1 is a schematic structural diagram of an auxiliary tool for a static torsion test of a movable gear sleeve in an embodiment of the present invention;

fig. 2 is a cross-sectional view of the structure shown in fig. 1.

Reference numerals:

100. a first moving gear sleeve; 200. a second movable gear sleeve;

30. a first limit plate; 40. a second limiting plate; 50. a thrust bearing; 60. a deep groove ball bearing; 70. a bushing; 80. a bolt structure; 90. positioning a plate;

31. mounting grooves; 71. a bushing body; 72. an annular convex edge; 81. a bolt; 82. and a nut.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description of the present invention and simplification of description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; either mechanically or electrically. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1 and fig. 2, the present embodiment discloses an auxiliary tool for a static torsion test of a movable gear sleeve, which includes two first limiting plates 30 and two second limiting plates 40 arranged at intervals along a first direction, wherein a movable gear sleeve assembly is formed after the first movable gear sleeve 100 and the second movable gear sleeve 200 are engaged with each other, and the movable gear sleeve assembly abuts against between the first limiting plate 30 and the second limiting plate 40 to complete axial positioning; the first direction is parallel to the axial direction of the movable gear sleeve component; the first movable gear sleeve 100 is connected with an external power source, namely, a driving motor of the static torsion testing device, and the second movable gear sleeve 200 is connected with a half shaft and further connected to the fixed end of the static torsion testing device; further, the first movable gear sleeve 100 is rotatably connected with the first limiting plate 30, so as to ensure that the first movable gear sleeve 100 does not generate additional friction with the first limiting plate 30 during axial positioning, that is, to ensure that the torque of the external power source can be completely transmitted to the first movable gear sleeve 100.

The auxiliary tool provided by the embodiment realizes axial positioning by limiting the two mutually meshed moving gear sleeves between the first limiting plate 30 and the second limiting plate 40, ensures that the two moving gear sleeves are completely meshed, and can smoothly transmit torque from the first moving gear sleeve 100 to the second moving gear sleeve 200; meanwhile, the first movable gear sleeve 100 is rotatably connected with the first limiting plate 30, so that additional friction between the first movable gear sleeve 100 and the first limiting plate 30 caused by axial positioning is avoided, that is, torque output by an external power source can be completely transmitted to the first movable gear sleeve 100, a static torque test is smoothly completed, and the accuracy and reliability of a test result are improved; the auxiliary tool is simple in structure, convenient to install and low in test cost.

The first moving gear sleeve 100 is rotatably connected with the first limit plate 30 through a thrust bearing 50; the thrust bearing 50 can bear a certain axial load to ensure that the auxiliary tool is stable in axial positioning, and meanwhile, the first movable gear sleeve 100 can rotate relative to the first limiting plate 30 to avoid generating additional friction. The auxiliary tool further comprises a bushing 70, one end of the bushing 70 is connected with the thrust bearing 50, and the other end of the bushing 70 is abutted against the first movable gear sleeve 100; when the external power source drives the first moving sleeve 100 to rotate, the bushing 70 rotates together with the first moving sleeve 100 by means of the thrust bearing 50, and additional friction is prevented from being generated. Specifically, the bushing 70 has a hollow T-shaped structure, and includes a bushing body 71 and an annular flange 72 disposed at one end of the bushing body 71, the annular flange 72 is connected to the thrust bearing 50, and the other end of the bushing body 71 abuts against the first moving sleeve 100.

Optionally, a deep groove ball bearing 60 is further arranged between the bushing 70 and the first limiting plate 30; specifically, the outer ring of the deep groove ball bearing 60 is arranged on the first limiting plate 30 in an interference fit manner, and the bushing body 71 is arranged on the inner ring of the deep groove ball bearing 60 in an interference fit manner, so that the assembly of the deep groove ball bearing 60 between the first limiting plate 30 and the bushing 70 is realized. The arrangement of the deep groove ball bearing 60 can further improve the reliability of the rotational connection between the first movable gear sleeve 100 and the first limiting plate 30, and fully ensure that no friction torque is generated between the first movable gear sleeve and the first limiting plate. Specifically, a mounting groove 31 is provided on a side wall of the first stopper plate 30, and the thrust bearing 50 and the deep groove ball bearing 60 are disposed in the mounting groove 31.

Further optionally, the auxiliary tool further includes a positioning plate 90, where the positioning plate 90 is an annular structure and is disposed on the periphery of the bushing body 71, so as to limit the deep groove ball bearing 60 between the annular convex edge 72 and the positioning plate 90. Specifically, the locating plate 90 is arranged on the periphery of the bushing body 71 through a threaded structure, an inner ring of the locating plate 90 is provided with an inner thread, an outer thread is arranged on the periphery of the bushing body 71, the locating plate 90 can be close to the deep groove ball bearing 60 along the axial direction through the threaded fit between the inner thread and the outer thread, the limiting operation of the deep groove ball bearing 60 is achieved, and the installation stability of the deep groove ball bearing 60 is ensured.

The first limiting plate 30 and the second limiting plate 40 are connected through a bolt structure 80, so that stable assembly between the movable gear sleeve assembly and the auxiliary tool is guaranteed. Optionally, the first limiting plate 30 and the second limiting plate 40 are both circular structures, and circular through holes are respectively formed in the centers of the first limiting plate 30 and the second limiting plate 40, so as to realize connection between an external power source and the first movable gear sleeve 100 and connection between the second movable gear sleeve 200 and the half shaft. Further, the bolt structures 80 are arranged in a plurality of numbers, and the bolt structures 80 are uniformly distributed on the same circumference which takes the center of the first limiting plate 30 or the second limiting plate 40 as the circle center, so that the connection stability of the two limiting plates is improved. Alternatively, in the present embodiment, three bolt structures 80 are provided. Specifically, bolt structure 80 includes bolt 81 and the nut 82 that the cooperation was used, sets up first through-hole and second through-hole on first limiting plate 30 and the second limiting plate 40 respectively, first through-hole and second through-hole axial intercommunication, and the figure of the two and bolt 81 figure one-to-one, and bolt 81 passes in proper order and carries out the lock through nut 82 behind first through-hole and the second through-hole and attaches, has realized the axial positioning of removal facing subassembly between two limiting plates.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims (10)

1. The utility model provides an auxiliary fixtures for moving tooth cover static torsion test for realize the axial positioning of intermeshing's first removal tooth cover (100) and second removal tooth cover (200), first removal tooth cover (100) are connected with external power source, second removal tooth cover (200) are connected with the semi-axis, a serial communication port, auxiliary fixtures includes first limiting plate (30) and second limiting plate (40) that two intervals set up, first removal tooth cover (100) with second removal tooth cover (200) meshing back butt in first limiting plate (30) with between second limiting plate (40), just first removal tooth cover (100) with rotate between first limiting plate (30) and connect.

2. The auxiliary tool according to claim 1, wherein the first moving gear sleeve (100) is rotatably connected with the first limiting plate (30) through a thrust bearing (50).

3. The auxiliary tool according to claim 2, further comprising a bushing (70), wherein the bushing (70) is of a hollow T-shaped structure and comprises a bushing body (71) and an annular convex edge (72) arranged at one end of the bushing body (71), the annular convex edge (72) is connected with the thrust bearing (50), and the other end of the bushing body (71) is abutted to the first movable gear sleeve (100).

4. The auxiliary tool according to claim 3, further comprising a deep groove ball bearing (60), wherein the deep groove ball bearing (60) is arranged between the bushing body (71) and the first limiting plate (30).

5. The auxiliary tool according to claim 4, wherein a mounting groove (31) is formed in a side wall of the first limiting plate (30), and the thrust bearing (50) and the deep groove ball bearing (60) are both arranged in the mounting groove (31).

6. The auxiliary tool according to claim 4, further comprising an annular positioning plate (90), wherein the positioning plate (90) is arranged on the periphery of the bushing body (71) to limit the deep groove ball bearing (60) between the annular convex edge (72) and the positioning plate (90).

7. The auxiliary tool according to claim 6, wherein an inner ring of the positioning plate (90) is provided with an inner thread, an outer thread is arranged on an outer circumferential surface of the bushing body (71), and the positioning plate (90) is arranged on the bushing body (71) through thread fit between the inner thread and the outer thread.

8. The auxiliary tool according to claim 1, wherein the first limiting plate (30) and the second limiting plate (40) are connected through a bolt structure (80).

9. The auxiliary tool according to claim 8, characterized in that a plurality of bolt structures (80) are provided; the plurality of bolt structures (80) are uniformly distributed on the same circumference with the center of the first limiting plate (30) or the second limiting plate (40) as the center of a circle.

10. The auxiliary tool according to claim 8, wherein the bolt structure (80) comprises a bolt (81) and a nut (82), the first limiting plate (30) and the second limiting plate (40) are respectively provided with a first through hole and a second through hole, the first through hole is axially communicated with the second through hole, and the bolt (81) passes through the first through hole and the second through hole and then is locked by the nut (82).

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