CN218211705U

CN218211705U - Rotating torque test tool

Info

Publication number: CN218211705U
Application number: CN202122370021.0U
Authority: CN
Inventors: 杨亮
Original assignee: Borgwarner Tts Beijing Co ltd
Current assignee: Borgwarner Tts Beijing Co ltd
Priority date: 2021-09-28
Filing date: 2021-09-28
Publication date: 2023-01-03
Anticipated expiration: 2031-09-28

Abstract

The utility model belongs to the technical field of test fixture's technique and specifically relates to a turning moment test fixture is related to, turning moment test fixture includes the ejector pin, be provided with the hexagonal piece on the ejector pin, sliding sleeve is equipped with the sleeve on the ejector pin, be provided with the mounting that is used for fixed sleeve on the sleeve, be provided with the inflation spline subassembly on the sleeve, the inflation spline subassembly opens the back and cooperates with the internal spline joint of input shaft, be provided with on the ejector pin and be used for ordering about the open inflation piece of inflation spline subassembly. This application has the effect that reduces the development cost of frock.

Description

Rotating torque test tool

Technical Field

The application relates to the technical field of test tools, in particular to a rotating torque test tool.

Background

The transfer case is a device for distributing the power of an engine, can output the power to a rear shaft or simultaneously output the power to a front shaft and the rear shaft, is an accessory on a four-wheel drive vehicle, and needs to measure the starting torque of the transfer case in the design and manufacturing process of the transfer case so as to ensure that the starting torque of the transfer case meets the requirement.

In the related technology, the tool is arranged into an external spline matched with an internal spline of an input shaft of the transfer case, and a hexagonal block for mounting a torque wrench is arranged on the external spline; when the starting torque of the transfer case is measured, the torque wrench and the input shaft of the transfer case are connected by the tool matched with the internal spline of the input shaft of the transfer case, and the input shaft is rotated by the torque wrench to measure the starting torque of the transfer case.

Aiming at the related technologies, the inventor thinks that the specifications of internal splines of different transfer case input shafts are different, and needs to design various input shaft fixing tools to fix the input shafts with different specifications, so that the tool development cost is increased.

SUMMERY OF THE UTILITY MODEL

In order to reduce the development cost of frock, this application provides the turning moment test fixture.

The application provides a turning moment test fixture adopts following technical scheme:

turning torque test fixture, including the ejector pin, be provided with the hexagonal piece on the ejector pin, the slip cap is equipped with the sleeve on the ejector pin, be provided with the mounting that is used for fixed sleeve on the sleeve, be provided with inflation spline assembly on the sleeve, inflation spline assembly opens the back and cooperates with the internal spline joint of input shaft, be provided with on the ejector pin and be used for ordering about the open inflation piece of inflation spline assembly.

Through adopting above-mentioned technical scheme, place the inflation spline subassembly in the transfer case input shaft internal spline, sliding sleeve, expand expansion spline subassembly through the inflation piece and open and cooperate with the internal spline joint, it is fixed with the sleeve through the mounting, be connected torque spanner and hexagonal piece, the turning torque spanner, measure the start-up moment of transfer case, through the internal spline joint of inflation spline subassembly with the transfer case input shaft commonly used, so that reduce because of the different and multiple frock of needs of the internal spline specification of transfer case input shaft, the development cost of frock has been reduced, and reduced the chaotic possibility of the field management that the frock caused too much.

Optionally, the expansion spline subassembly establishes the fixing support on the sleeve including the cover, be provided with the retaining member that is used for locking fixing support on the sleeve, fixing support circumferential direction is provided with a plurality of spline lamellas, the axis of rotation and the fixing support diameter place circle of spline lamella are tangent, the spline lamella is used for cooperating with the internal spline joint of input shaft.

Through adopting above-mentioned technical scheme, through ordering about the spline lamella towards keeping away from the ejector pin direction and sliding, the internal spline joint of spline lamella and input shaft through the different turned angle of spline lamella to the realization is to the joint of the internal spline of different input shafts.

Optionally, the locking member includes a locking sleeve sleeved at one end of the sleeve, and the locking sleeve abuts against the fixed support.

Through adopting above-mentioned technical scheme, through the lock sleeve with fixing support locking on the sleeve to fixing support.

Optionally, clamping rings are arranged at two ends of the fixing support, a first clamping groove matched with the clamping ring in a clamped mode is formed in the sleeve, a second clamping groove matched with the clamping ring in a clamped mode is formed in the locking sleeve, and the clamping rings at two ends of the fixing support are clamped with the first clamping groove and the second clamping groove respectively.

Through adopting above-mentioned technical scheme, the joint circle difference joint at fixing support both ends is on first joint groove and second joint groove, and further fixed effect of strengthening to fixing support.

Optionally, a fixing block used for being connected with the inner spline groove of the input shaft in a clamped mode is arranged on the spline clack, and the fixing block is located on one side, away from the sleeve, of the spline clack.

By adopting the technical scheme, the fixing block is clamped with the inner spline of the input shaft after the spline flap is unfolded, so that the tool is connected with the inner spline of the input shaft conveniently.

Optionally, an inclined plane is disposed at one end of the spline flap far away from the fixing support, and a distance from one end of the inclined plane close to the fixing support to the axis of the sleeve is smaller than a distance from one end of the inclined plane far away from the fixing support to the axis of the sleeve.

Through adopting above-mentioned technical scheme, being provided with of inclined plane does benefit to the expansion of spline lamella, reduces because of the coarse possibility that causes with the ejector pin butt of ejector pin when spline lamella expandes.

Optionally, the fixing piece includes a nut disposed on one end of the sleeve far away from the expansion spline assembly, and the nut is in threaded connection with the ejector rod.

Through adopting above-mentioned technical scheme, handheld sleeve rotates the ejector pin, adjusts nut's relative position to realize the relative slip between sleeve and the ejector pin, nut and ejector pin threaded connection rotate the auto-lock of ejector pin back ejector pin and nut, so that sleeve and ejector pin fixed.

Optionally, the expansion part comprises a circular truncated cone arranged at one end, close to the expansion spline assembly, of the ejector rod, one end, small in diameter, of the circular truncated cone is connected with the ejector rod, and the spline clack extends to the side wall of the circular truncated cone.

Through adopting above-mentioned technical scheme, the spline lamella slides on the round platform lateral wall, expandes the spline lamella through the inclined plane of round platform lateral wall to the cooperation of the internal spline joint of inflation spline subassembly and input shaft.

In summary, the present application includes at least one of the following beneficial technical effects:

the expansion spline assembly is placed in an internal spline of an input shaft of the transfer case, a sleeve is slid, the expansion spline assembly is expanded and unfolded through an expansion piece to be matched with the internal spline in a clamping mode, the sleeve is fixed through a fixing piece, a torque wrench is connected with a hexagonal block, the torque wrench is rotated to measure the starting torque of the transfer case, and the expansion spline assembly is clamped with the internal spline of the input shaft of the common transfer case, so that the requirement of various tools due to different specifications of the internal spline of the input shaft of the transfer case is reduced, the development cost of the tools is reduced, and the possibility of field management confusion caused by too many tools is reduced;

through ordering about the spline lamella to keep away from the ejector pin direction and slide, the internal spline joint of spline lamella and input shaft through the turned angle of the difference of spline lamella to the realization is to the joint of the internal spline of different input shafts.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a partial cross-sectional view of an embodiment of the present application.

FIG. 3 is a schematic structural view of an expansion spline assembly of an embodiment of the present application.

Description of reference numerals: 1. a top rod; 2. a hexagonal block; 3. a sleeve; 4. a fixed support; 5. a spline lobe; 6. a locking sleeve; 7. a clamping ring; 8. a first clamping groove; 9. a second clamping groove; 10. a fixed block; 11. a bevel; 12. a nut; 13. a circular truncated cone; 14. a first connection block; 15. a second connecting block; 16. and fixing the pin.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a rotating torque test tool. Referring to fig. 1, turning moment test fixture includes ejector pin 1, the one end of ejector pin 1 is fixed with hexagonal piece 2, sliding sleeve is equipped with sleeve 3 on the ejector pin 1, sleeve 3's slip direction is along ejector pin 1's length direction, be provided with the mounting that is used for fixed sleeve 3 on the sleeve 3, the one end of keeping away from hexagonal piece 2 on the sleeve 3 is provided with inflation spline assembly, inflation spline assembly opens the back and cooperates with the internal spline joint of input shaft, be provided with on the ejector pin 1 and be used for ordering about the open inflation piece of inflation spline assembly.

Referring to fig. 2, the expansion spline assembly comprises a fixed support 4 sleeved on a sleeve 3, the outer side wall of the fixed support 4 is flush with the outer side wall of the sleeve 3, clamping rings 7 are fixed at two ends of the fixed support 4, a locking member for locking the fixed support 4 is arranged on the sleeve 3, the locking member comprises a locking sleeve 6 sleeved at one end of the sleeve 3, a first clamping groove 8 in clamping fit with the clamping ring 7 is formed in the sleeve 3, a second clamping groove 9 in clamping fit with the clamping ring 7 is formed in the locking sleeve 6, and the clamping rings 7 at two ends of the fixed support 4 are respectively clamped with the first clamping groove 8 and the second clamping groove 9; fixed bearing 4 circumferential direction is connected with a plurality of spline lamella 5, and the rotation axis of spline lamella 5 is tangent with the circle that fixed bearing 4 diameter formed, and spline lamella 5 is used for cooperating with the internal spline joint of input shaft. The clamping ring 7 at one end of the fixed support 4 is clamped with the first clamping groove 8 on the sleeve 3, and the fixed support 4 is fixed by clamping the second clamping groove 9 on the locking sleeve 6 with the clamping ring 7 at the other end of the fixed support 4.

Referring to fig. 3, be fixed with a plurality of first connecting blocks 14 on fixing support 4, both sides on the spline lamella 5 all are fixed with second connecting block 15, second connecting block 15 is located the one end that spline lamella 5 is close to fixing support 4, be fixed with fixed pin 16 on two second connecting blocks 15, fixed pin 16 rotates and connects on first connecting block 14, the axis of rotation of fixed pin 16 is tangent with fixing support 4 diameter place circle, integrated into one piece has the fixed block 10 that is used for the internal spline recess joint with the input shaft on the spline lamella 5, fixed block 10 is located one side that sleeve 3 was kept away from to spline lamella 5. The end of the spline flap 5 away from the fixed support 4 is set to be an inclined plane 11, and the distance from the end of the inclined plane 11 close to the fixed support 4 to the axis of the sleeve 3 is less than the distance from the end of the inclined plane 11 away from the fixed support 4 to the axis of the sleeve 3. Through rotating spline lamella 5, open spline lamella 5, fixed block 10 on the spline lamella 5 cooperates with the internal spline recess joint of input shaft, opens the angle through the difference, realizes the internal spline joint to the input shaft of unidimensional.

The fixing piece comprises a nut 12 fixed on one end of the sleeve 3 far away from the expansion spline assembly, and the nut 12 is in threaded connection with the ejector rod 1. The expansion piece comprises a circular truncated cone 13 fixed at one end, close to the expansion spline assembly, of the ejector rod 1, one end, small in diameter, of the circular truncated cone 13 is fixed at the end portion of the ejector rod 1, the spline flap 5 extends to the side wall of the circular truncated cone 13, the diameter of the end, small in diameter, of the circular truncated cone 13 is smaller than that of the sleeve 3, and the diameter of the end, large in diameter, of the circular truncated cone 13 is larger than that of the sleeve 3. The circular truncated cone 13 is placed in an internal spline of the input shaft, the spline petals 5 slide on the side wall of the circular truncated cone 13, the spline petals 5 are unfolded and are clamped and tightly abutted with the internal spline of the input shaft after being unfolded, and the internal spline of the input shaft of the common transfer case, namely the internal spline with the diameter of 31-43mm, can be compatible.

The implementation principle of the rotating torque testing tool in the embodiment of the application is as follows: placing a circular truncated cone 13 into an internal spline of an input shaft, holding a sleeve 3 by hand, rotating a nut 12 to enable an ejector rod 1 to move, extruding a spline petal 5 of an expansion spline assembly by the circular truncated cone 13 on the ejector rod 1, connecting the spline petal 5 with the internal spline of the input shaft of the transfer case in an interference manner under expansion, rotating a hexagonal rod at the end part of the ejector rod 1 through a torque wrench, and measuring the starting torque of the transfer case; and (3) reversely rotating the nut 12 after the measurement is finished, so that the ejector rod 1 moves, loosening the compression of the expansion spline on the internal spline of the input shaft, and taking out the tool.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. Turning moment test fixture, its characterized in that: including ejector pin (1), be provided with hexagonal piece (2) on ejector pin (1), the slip cap is equipped with sleeve (3) on ejector pin (1), be provided with the mounting that is used for fixed sleeve (3) on sleeve (3), be provided with inflation spline assembly on sleeve (3), inflation spline assembly opens the back and cooperates with the internal spline joint of input shaft, be provided with on ejector pin (1) and be used for ordering about the open inflation piece of inflation spline assembly.

2. The turning moment test fixture according to claim 1, characterized in that: expansion spline subassembly establishes fixing support (4) on sleeve (3) including the cover, be provided with the retaining member that is used for locking fixing support (4) on sleeve (3), fixing support (4) circumferential direction is provided with a plurality of spline lamella (5), the axis of rotation of spline lamella (5) is tangent with fixing support (4) diameter place circle, spline lamella (5) are used for cooperating with the internal spline joint of input shaft.

3. The turning moment test tool according to claim 2, characterized in that: the retaining member is including establishing lock sleeve (6) at sleeve (3) one end, lock sleeve (6) and fixing support (4) butt.

4. The turning moment test fixture according to claim 3, characterized in that: the both ends of fixing support (4) all are provided with joint circle (7), set up on sleeve (3) with joint circle (7) joint complex first joint groove (8), set up on lock sleeve (6) with joint circle (7) joint complex second joint groove (9), the joint circle (7) at fixing support (4) both ends respectively with first joint groove (8) and second joint groove (9) joint.

5. The turning moment test tool according to claim 2, characterized in that: be provided with on spline lamella (5) and be used for with fixed block (10) of the internal spline recess joint of input shaft, fixed block (10) are located spline lamella (5) and keep away from one side of sleeve (3).

6. The turning moment test tool according to claim 2, characterized in that: the spline petal (5) keep away from the one end of fixing support (4) and set up to inclined plane (11), the distance that the one end that inclined plane (11) is close to fixing support (4) reaches sleeve (3) axis is less than inclined plane (11) and keeps away from the distance of one end of fixing support (4) to sleeve (3) axis.

7. The turning moment test tool according to claim 1, characterized in that: the fixing piece comprises a nut (12) which is arranged on the sleeve (3) and is far away from one end of the expansion spline assembly, and the nut (12) is in threaded connection with the ejector rod (1).

8. The turning moment test tool according to claim 2, characterized in that: the expansion piece comprises a circular truncated cone (13) which is arranged at one end, close to the expansion spline assembly, of the ejector rod (1), one end, small in diameter, of the circular truncated cone (13) is connected with the ejector rod (1), and the spline clack (5) extends to the side wall of the circular truncated cone (13).