CN216478527U - Connecting device of transmission and test bench with connecting device - Google Patents
Connecting device of transmission and test bench with connecting device Download PDFInfo
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- CN216478527U CN216478527U CN202122783355.0U CN202122783355U CN216478527U CN 216478527 U CN216478527 U CN 216478527U CN 202122783355 U CN202122783355 U CN 202122783355U CN 216478527 U CN216478527 U CN 216478527U
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Abstract
The utility model discloses a connecting device of a transmission and a test bench with the connecting device. The connecting device of the transmission and the test bench can ensure that the automatic transmission is well arranged on the manual transmission test bench, and overcomes the defect that the manual transmission test bench in the prior art can not be connected with the automatic transmission. The test bench with the connecting device is based on the traditional manual transmission test bench, and can be used for detecting two different types of transmissions by upgrading the test bench into a test bench which can be connected with a manual transmission and an automatic transmission through transformation.
Description
Technical Field
The utility model belongs to the field of automobile part testing, and relates to a connecting device, in particular to a connecting device for a transmission and a test bench with the connecting device.
Background
Along with the development of science and technology, the society advances, and the commercial car driver is higher and higher to driving travelling comfort's requirement, and heavy commercial car matches hydraulic automatic gearbox, receives customer's favor more and more, matches heavy commercial car driving operation of heavy hydraulic automatic gearbox simple, and the travelling comfort is high, has taken up very high proportion in some application. In the production process of the automatic transmission, because the automatic transmission test rack is expensive, the test becomes a bottleneck station due to the lack of the automatic transmission test rack, and further the production efficiency is limited. Since there is a great difference in connection manner between the automatic transmission and the manual transmission, the automatic transmission cannot be connected to the manual transmission test stand.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model aims to provide a connecting device for a transmission and a test bench and the test bench with the connecting device, and solves the technical problem that an automatic transmission cannot be connected on a manual transmission test bench in the prior art.
In order to solve the technical problems, the utility model adopts the following technical scheme to realize:
a test bench with a connecting device comprises a test bench body, wherein a speed changer connecting test part for connecting an automatic speed changer to be tested is arranged on a supporting base of the test bench body, and the speed changer connecting test part is internally provided with the connecting device of the speed changer and the test bench;
the transmission connection testing part comprises an outer shell, one end of the outer shell is closed, the other end of the outer shell is open, a power output part is arranged in the closed end of the outer shell, a connecting device mounting cavity is arranged in the open end of the outer shell, an internal spline shell type connecting piece is arranged in the connecting device mounting cavity, and the internal spline shell type connecting piece is coaxially arranged in the center of the power output part; the inner side of a connecting device of the transmission and the test bench is arranged in the inner spline shell type connecting piece, and the outer side of the connecting device of the transmission and the test bench is connected with an automatic transmission to be tested;
the device for connecting the transmission with the test bench comprises a connecting disc connected with the automatic transmission to be tested, an inner disc of the connecting disc, a shoulder and an outer disc of the connecting disc, wherein the connecting disc is integrally arranged from the middle to the edge, the outer end of an outer spline mounting shaft is arranged at the center of the inner surface of the inner disc of the connecting disc, and the inner end of the outer spline mounting shaft is coaxially arranged in an inner spline sleeve type connecting piece; a plurality of transmission front end mounting through holes are formed in the connecting disc outer disc and are uniformly distributed along the circumferential direction of the connecting disc outer disc; a speed changer centering shaft mounting hole is formed in the center of the outer surface of the connecting disc inner disc;
the inner surface of the inner spline shell type connecting piece is of an inner spline structure, and the outer surface of the outer spline mounting shaft is of an outer spline structure matched with the inner spline structure.
The utility model also has the following technical characteristics:
the coaxiality of the mounting hole of the speed changer centering shaft and the mounting shaft of the external spline is less than 0.05 mm.
The center of the outer surface of the connecting disc inner disc is also provided with a guide hole, and the guide hole is positioned on the outer side of the mounting hole of the speed changer centering shaft; the included angle between the inner wall of the outer end of the guide hole and the axial direction of the inner disc of the connecting disc is 20-30 degrees.
A plurality of lightening holes are formed in the connecting disc inner disc and are uniformly distributed along the circumferential direction of the connecting disc inner disc.
The outer side surface of the inner disc of the connecting disc between the shoulder and the lightening hole is a first transition surface, the outer side surface of the outer disc of the connecting disc between the shoulder and the mounting through hole at the front end of the transmission is a second transition surface, and the first transition surface and the second transition surface are both inwards concave arc surfaces.
And a hoisting threaded hole is formed in the external spline mounting shaft.
The transmission mounting bolt is arranged in the transmission front end mounting through hole, and the inner diameter of the transmission front end mounting through hole is 0.5-1 mm larger than the outer diameter of the transmission mounting bolt.
The utility model also protects a connecting device of the transmission and the test bench.
Compared with the prior art, the utility model has the following technical effects:
in the connecting device of the transmission and the test bench, the spline design on the external spline mounting shaft enables the front end of the automatic transmission to be easily assembled; the coaxiality of the mounting hole of the automatic transmission and the mounting shaft of the external spline is less than 0.05mm, so that the coaxiality requirements of the test bench and the automatic transmission before and after mounting can be ensured; the included angle between the inner wall of the outer end of the guide hole and the axial direction of the inner disc of the connecting disc is 20-30 degrees, so that the connecting device is convenient to be installed on a centering shaft at the front end of the automatic transmission; the first transition surface and the second transition surface realize uniform transition through an arc-shaped structure, stress concentration can be avoided, and meanwhile, the connecting device is enabled not to interfere with other structures at the front end of the automatic transmission.
According to the connecting device of the transmission and the test bench, the automatic transmission can be well arranged on the manual transmission test bench through the design, and the defect that the manual transmission test bench in the prior art cannot be connected with the automatic transmission is overcome.
The test bench with the connecting device is based on a traditional manual transmission test bench, and is upgraded into a test bench which can be connected with a manual transmission and an automatic transmission through transformation, so that the detection of two different types of transmissions can be realized.
(III) the test bench with the connecting device has the advantages of low cost, small required installation space, practicability and popularization and application prospect.
Drawings
Fig. 1 is a schematic view of the overall structure of a connecting device of a transmission and a test bed.
Fig. 2 is a schematic sectional view of the connecting device of the transmission and the test stage.
Fig. 3 is a schematic view of the overall structure of the test bench with the connecting device.
The meaning of the individual reference symbols in the figures is: 1-a supporting base, 2-a transmission connection testing part, 3-a transmission and test bench connecting device, 4-an automatic transmission to be tested and 5-a transmission mounting bolt;
201-outer shell, 202-power output part, 203-connecting device installation cavity, 204-internal spline sleeve type connecting piece;
301-connecting disc, 302-external spline mounting shaft and 303-hoisting threaded hole;
30101-inner disk of connecting disk, 30102-shoulder, 30103-outer disk of connecting disk, 30104-front end mounting through hole of speed changer, 30105-mounting hole of speed changer centering shaft, 30106-lightening hole, 30107-first transition surface, 30108-second transition surface and 30109-guide hole.
The present invention will be explained in further detail with reference to examples.
Detailed Description
It is to be noted that all the components, devices and apparatuses of the present invention, unless otherwise specified, are implemented by using components, devices and apparatuses known in the art, for example, a test bench body known in the art is used as the test bench body.
In the utility model:
the test bench main body is a test bench main body of the manual transmission.
The automatic transmission to be tested is an automatic transmission known in the art.
The power take-off of the test rig is a power take-off in a manual transmission test rig as known in the art.
The following embodiments of the present invention are provided, and it should be noted that the present invention is not limited to the following embodiments, and all equivalent changes based on the technical solutions of the present invention are within the protection scope of the present invention.
Example 1:
the embodiment provides a connecting device of a transmission and a test bench, as shown in fig. 1 to 3, comprising a connecting disc 301, an inner connecting disc 30101, a shoulder 30102 and an outer connecting disc 30103, wherein the connecting disc 301 is integrally arranged in sequence from the middle to the edge, and an outer spline mounting shaft 302 is arranged at the center of the inner surface of the inner connecting disc 30101; a plurality of transmission front end mounting through holes 30104 are formed in the connecting disc outer disc 30103, and the plurality of transmission front end mounting through holes 30104 are uniformly distributed along the circumferential direction of the connecting disc outer disc 30103; a transmission centering shaft mounting hole 30105 is formed in the center of the outer surface of the connecting disc inner disc 30101;
the coaxiality of the transmission centering shaft mounting hole 30105 and the external spline mounting shaft 302 is less than 0.05 mm;
a guide hole 30109 is further formed in the center of the outer surface of the connecting disc inner disc 30101, and the guide hole 30109 is located on the outer side of the transmission centering shaft mounting hole 30105; the included angle between the inner wall of the outer end of the guide hole 30109 and the axial direction of the connecting disc inner disc 30101 is 20-30 degrees;
a plurality of lightening holes 30106 are formed in the connecting disc inner disc 30101, and the lightening holes 30106 are uniformly distributed along the circumferential direction of the connecting disc inner disc 30101;
the outer side face of a connecting disc inner disc 30101 between the shoulder 30102 and the lightening hole 30106 is a first transition face 30107, the outer side face of a connecting disc outer disc 30103 between the shoulder 30102 and the transmission front end mounting through hole 30104 is a second transition face 30108, and the first transition face 30107 and the second transition face 30108 are both inwards concave arc-shaped faces;
a lifting threaded hole 303 is formed in the external spline mounting shaft 302.
In this embodiment, the number of the transmission front end mounting through holes 30104 is 12, and the number of the lightening holes 30106 is 6.
Example 2:
the embodiment provides a test bench with a connecting device, as shown in fig. 1 to 3, comprising a supporting base 1, a transmission connection testing part 2 for connecting an automatic transmission 4 to be tested is arranged on the supporting base 1, and the transmission connection testing part 2 is internally provided with the connecting device 3 of the transmission and the test bench in the embodiment 1;
the transmission connection testing part 2 comprises an outer shell 201, one end of the outer shell 201 is closed, the other end of the outer shell 201 is open, a power output part 202 is arranged in the closed end of the outer shell 201, a connecting device installation cavity 203 is arranged in the open end of the outer shell 201, an inner spline shell type connecting piece 204 is arranged in the connecting device installation cavity 203, and the inner spline shell type connecting piece 204 is coaxially arranged at the center of the power output part 202; the inner spline shell type connecting piece 204 is internally provided with the inner side of a connecting device 3 of the speed changer and the test bench, and the outer side of the connecting device 3 of the speed changer and the test bench is connected with an automatic speed changer 4 to be tested;
the connecting device 3 of the transmission and the test bench comprises a connecting disc 301 connected with an automatic transmission 4 to be tested, a connecting disc inner disc 30101, a shoulder 30102 and a connecting disc outer disc 30103 which are sequentially and integrally arranged from the middle to the edge, the outer end of an external spline mounting shaft 302 is arranged at the center of the inner surface of the connecting disc inner disc 30101, and the inner end of the external spline mounting shaft 302 is coaxially arranged in an internal spline sleeve type connecting piece 204; a plurality of transmission front end mounting through holes 30104 are formed in the connecting disc outer disc 30103, and the plurality of transmission front end mounting through holes 30104 are uniformly distributed along the circumferential direction of the connecting disc outer disc 30103;
the internal surface of internal spline shell connection spare 204 is internal spline structure, and external spline installation axle 302 surface is the external spline structure with internal spline structure assorted, and in this embodiment, the spline design makes the automatic transmission front end easily assemble on manual test bench.
In this embodiment, the number of the transmission front end mounting holes 30104 is 12.
As a specific scheme of this embodiment, a transmission centering shaft mounting hole 30105 is arranged at the center of the outer surface of the connecting disc inner disc 30101, and the coaxiality between the transmission centering shaft mounting hole 30105 and the external spline mounting shaft 302 is less than 0.05mm, so that the coaxiality requirement between the test bench and the automatic transmission before and after installation can be ensured.
As a specific scheme of this embodiment, a guide hole 30109 is further formed in the center of the outer surface of the connecting disc inner disc 30101, and the guide hole 30109 is located outside the transmission centering shaft mounting hole 30105; the included angle between the inner wall of the outer end of the guide hole 30109 and the axial direction of the connecting disc inner disc 30101 is 20-30 degrees. In the present embodiment, the guide hole 30109 allows the connecting device to be easily attached to a centering shaft at the front end of the automatic transmission.
As a specific scheme of this embodiment, a plurality of lightening holes 30106 are formed in the connecting disc inner disc 30101, and the plurality of lightening holes 30106 are uniformly arranged along the circumferential direction of the connecting disc inner disc 30101, in this embodiment, the number of the lightening holes 30106 is 6, and the lightening holes 30106 are provided to facilitate the lightening of the connecting device.
As a specific scheme of this embodiment, the outer side surface of the inner disk 30101 of the connection pad between the shoulder 30102 and the lightening hole 30106 is a first transition surface 30107, the outer side surface of the outer disk 30103 of the connection pad between the shoulder 30102 and the transmission front end mounting through hole 30104 is a second transition surface 30108, and the first transition surface 30107 and the second transition surface 30108 are both inward-recessed arc surfaces. In this embodiment, the first transition surface 30107 and the second transition surface 30108 achieve uniform transition by a circular arc structure, and can avoid stress concentration while preventing the connecting device from interfering with other structures at the front end of the automatic transmission.
As a specific scheme of this embodiment, a transmission mounting bolt 5 is disposed in the transmission front end mounting through hole 30104, and an inner diameter of the transmission front end mounting through hole 30104 is 0.5mm to 1mm larger than an outer diameter of the transmission mounting bolt 5, so as to avoid mounting interference caused by a machining tolerance of a mounting part.
As a concrete scheme of this embodiment, set up hoist and mount screw hole 303 in the external spline installation axle 302, in this embodiment, set up hoist and mount screw hole 303 and make connecting device easily hoist and mount.
The installation and working process of the utility model is as follows:
first, the coupling device 3 of the transmission and the test stand is mounted in advance to the front end of the automatic transmission 4 to be tested through the transmission centering shaft mounting hole 30105 and the transmission mounting bolt 5.
Secondly, the automatic transmission 4 to be tested, on which the connecting device is mounted, is pushed to the transmission connection testing part 2, after an internal spline on the external spline mounting shaft 302 is aligned and matched with an external spline on the internal spline shell type connecting piece 204, the automatic transmission 4 to be tested is pushed into the connecting device mounting cavity 203, after the automatic transmission 4 to be tested is ensured to be stable, a shell of the automatic transmission 4 to be tested is tightly attached to a mounting surface of the shell 201, then the shell 201 is screwed, and the automatic transmission 4 to be tested is assembled on a modified manual testing bench.
Thirdly, after the assembly is completed, the power output part 202 is started to perform the test, and after the test is completed, the tested automatic transmission 4 and the connecting device 3 of the transmission and the test bench are detached from the test bench.
Claims (8)
1. A test bench with a connecting device comprises a test bench body, wherein a transmission connecting test part (2) for connecting an automatic transmission (4) to be tested is arranged on a supporting base (1) of the test bench body, and the test bench is characterized in that a connecting device (3) of the transmission and the test bench is arranged in the transmission connecting test part (2);
the transmission connection testing part (2) comprises an outer shell (201), one end of the outer shell (201) is closed, the other end of the outer shell (201) is open, a power output part (202) is arranged in the closed end of the outer shell (201), a connecting device installation cavity (203) is arranged in the open end of the outer shell (201), an internal spline sleeve type connecting piece (204) is arranged in the connecting device installation cavity (203), and the internal spline sleeve type connecting piece (204) is coaxially arranged at the center of the power output part (202); the inner side of a connecting device (3) of the speed changer and the test bench is arranged in the inner spline shell type connecting piece (204), and the outer side of the connecting device (3) of the speed changer and the test bench is connected with an automatic speed changer (4) to be tested;
the connecting device (3) of the transmission and the test bench comprises a connecting disc (301) connected with an automatic transmission (4) to be tested, the connecting disc (301) is sequentially and integrally provided with a connecting disc inner disc (30101), a shoulder (30102) and a connecting disc outer disc (30103) from the middle to the edge, the outer end of an outer spline mounting shaft (302) is arranged at the center of the inner surface of the connecting disc inner disc (30101), and the inner end of the outer spline mounting shaft (302) is coaxially mounted in an inner spline sleeve type connecting piece (204); a plurality of transmission front end mounting through holes (30104) are formed in the connecting disc outer disc (30103), and the transmission front end mounting through holes (30104) are uniformly distributed along the circumferential direction of the connecting disc outer disc (30103); a transmission centering shaft mounting hole (30105) is formed in the center of the outer surface of the connecting disc inner disc (30101).
2. The test rack with connection device of claim 1, wherein the transmission centering shaft mounting hole (30105) is less than 0.05mm coaxial with the externally splined mounting shaft (302).
3. The test bench with connecting device according to claim 1, characterized in that the center of the outer surface of the connecting disc inner disc (30101) is further provided with a guide hole (30109), and the guide hole (30109) is positioned outside the transmission centering shaft mounting hole (30105); the included angle between the inner wall of the outer end of the guide hole (30109) and the axial direction of the connecting disc inner disc (30101) is 20-30 degrees.
4. The test bench with the connecting device as claimed in claim 1, wherein the connecting disc inner disc (30101) is provided with a plurality of lightening holes (30106), and the lightening holes (30106) are uniformly distributed along the circumferential direction of the connecting disc inner disc (30101).
5. The test bench with connecting device according to claim 4, characterized in that the outer side of the inner disk (30101) of the connecting disk between the shoulder (30102) and the lightening hole (30106) is a first transition surface (30107); the outer side surface of a connecting disc outer disc (30103) between the shoulder (30102) and the transmission front end mounting through hole (30104) is a second transition surface (30108); the first transition surface (30107) and the second transition surface (30108) are both inwards concave arc surfaces.
6. The test bench with connection device as claimed in claim 1, wherein said externally splined mounting shaft (302) has a threaded lifting hole (303) formed therein.
7. The test bench with the connecting device according to claim 1, wherein the derailleur mounting bolt (5) is arranged in the derailleur front end mounting through hole (30104), and the inner diameter of the derailleur front end mounting through hole (30104) is 0.5-1 mm larger than the outer diameter of the derailleur mounting bolt (5).
8. A connecting device of a transmission and a test bench is characterized by comprising a connecting disc (301), wherein the connecting disc (301) is provided with a connecting disc inner disc (30101), a shoulder (30102) and a connecting disc outer disc (30103) which are integrally arranged from the middle to the edge in sequence, and an external spline mounting shaft (302) is arranged in the center of the inner surface of the connecting disc inner disc (30101); a plurality of transmission front end mounting through holes (30104) are formed in the connecting disc outer disc (30103), and the transmission front end mounting through holes (30104) are uniformly distributed along the circumferential direction of the connecting disc outer disc (30103); a transmission centering shaft mounting hole (30105) is formed in the center of the outer surface of the connecting disc inner disc (30101);
the coaxiality of the speed changer centering shaft mounting hole (30105) and the external spline mounting shaft (302) is less than 0.05 mm;
the center of the outer surface of the connecting disc inner disc (30101) is also provided with a guide hole (30109), and the guide hole (30109) is positioned on the outer side of a speed changer centering shaft mounting hole (30105); the included angle between the inner wall of the outer end of the guide hole (30109) and the axial direction of the connecting disc inner disc (30101) is 20-30 degrees;
a plurality of lightening holes (30106) are formed in the connecting disc inner disc (30101), and the lightening holes (30106) are uniformly distributed along the circumferential direction of the connecting disc inner disc (30101);
the outer side surface of an inner disc (30101) of a connecting disc between the shoulder (30102) and the lightening hole (30106) is a first transition surface (30107), the outer side surface of an outer disc (30103) of the connecting disc between the shoulder (30102) and a mounting through hole (30104) at the front end of the transmission is a second transition surface (30108), and the first transition surface (30107) and the second transition surface (30108) are both inwards concave arc-shaped surfaces;
and a hoisting threaded hole (303) is formed in the external spline mounting shaft (302).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122783355.0U CN216478527U (en) | 2021-11-12 | 2021-11-12 | Connecting device of transmission and test bench with connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122783355.0U CN216478527U (en) | 2021-11-12 | 2021-11-12 | Connecting device of transmission and test bench with connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216478527U true CN216478527U (en) | 2022-05-10 |
Family
ID=81450524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122783355.0U Active CN216478527U (en) | 2021-11-12 | 2021-11-12 | Connecting device of transmission and test bench with connecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216478527U (en) |
-
2021
- 2021-11-12 CN CN202122783355.0U patent/CN216478527U/en active Active
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