CN211978244U - Gearbox leakproofness detects auxiliary fixtures - Google Patents
Gearbox leakproofness detects auxiliary fixtures Download PDFInfo
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- CN211978244U CN211978244U CN202020977972.7U CN202020977972U CN211978244U CN 211978244 U CN211978244 U CN 211978244U CN 202020977972 U CN202020977972 U CN 202020977972U CN 211978244 U CN211978244 U CN 211978244U
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Abstract
The utility model belongs to the technical field of automobile transmission airtightness testing, and relates to a transmission airtightness detection auxiliary tool, which comprises a fixing frame, a driving piece, a pressing piece and two plugging pieces; one plugging piece is used for being in interference fit with a left half shaft oil seal hole of a differential of the gearbox, and the other plugging piece is used for being in interference fit with a right half shaft oil seal hole of the differential; the fixed frame is provided with a butting part for butting against one plugging piece, and the pressing piece is arranged on the fixed frame in a sliding manner, is opposite to the butting part and is used for butting against the other plugging piece; the driving piece is arranged on the fixing frame and used for driving the pressing piece to move towards the direction close to the abutting part, so that the pressing piece and the abutting part respectively abut against the two plugging pieces tightly. Through adopting the driving piece to carry out the mode of application of force to compressing tightly to and under the cooperation of mount and butt portion, can conveniently support tightly two shutoff pieces on interference fit left semi-axis oil blanket hole and the right semi-axis oil blanket hole, simple structure, convenient operation can improve work efficiency.
Description
Technical Field
The utility model belongs to the technical field of the test of motor transmission gas tightness, especially, relate to a gearbox leakproofness detects auxiliary fixtures.
Background
The gearbox needs to be tested for sealing performance before the lower production line. At present, the commonly used tightness detection method in the industry comprises air tightness detection and liquid tightness detection, and the air tightness detection is more widely applied due to the fact that gas media are convenient to obtain.
When the air tightness detection is carried out, the oil seal holes of the left half shaft and the right half shaft of the differential mechanism of the gearbox need to be sealed, then, gas pressure is applied to the inner cavity of the gearbox, and the pressure leakage condition of the gearbox shell is detected.
The existing auxiliary tool for sealing the oil sealing holes of the left half shaft and the right half shaft comprises a plugging head and a fastening assembly, wherein the plugging head in the auxiliary tool is used for sealing the oil sealing holes of the left half shaft and the right half shaft, and then the fastening assembly is used for providing clamping force for the plugging head so as to ensure that the sealing state of the gearbox is consistent with the assembly state of the whole vehicle.
However, the fastening assembly of the conventional auxiliary tool adopts a bolt connection mode to provide clamping force for the plug head, and usually needs to be screwed through a screwing tool, so that the operation is complicated and the efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: aiming at the problems of complex operation and low efficiency of the existing gearbox tightness detection auxiliary tool, the gearbox tightness detection auxiliary tool is provided.
In order to solve the technical problem, an embodiment of the utility model provides a gearbox tightness detection auxiliary tool, which comprises a fixing frame, a driving piece, a pressing piece and two plugging pieces;
one plugging piece is used for being in interference fit with a left half shaft oil seal hole of a differential of a gearbox, and the other plugging piece is used for being in interference fit with a right half shaft oil seal hole of the differential;
the fixed frame is provided with a butting part for butting against one plugging piece, and the pressing piece is arranged on the fixed frame in a sliding manner, is opposite to the butting part and is used for butting against the other plugging piece;
the driving piece is arranged on the fixing frame and used for driving the pressing piece to move towards the direction close to the abutting part, so that the pressing piece and the abutting part respectively abut against the two plugging pieces.
Optionally, the drive member comprises a resilient member;
the pressing piece comprises a propping piece and a sliding piece, the propping piece is fixedly arranged at one end of the sliding piece, and the sliding piece is connected with the fixed frame in a sliding manner;
the elastic piece is arranged between the abutting piece and the fixing frame and used for providing elastic force to drive the abutting piece to move towards the direction close to the abutting part, so that the abutting piece and the abutting part abut against the two plugging pieces respectively.
Optionally, the device further comprises a rotating shaft and a driving rod;
the driving rod is rotatably connected with the sliding piece through the rotating shaft and is abutted against the fixed frame;
when the driving rod rotates relative to the sliding part, the driving rod rotates relative to the fixed frame, and the rotating shaft is driven to move towards the direction far away from the plugging piece under the counter-acting force of the fixed frame.
Optionally, the elastic element is a cylindrical spring sleeved on the sliding element, and the abutting element and the driving rod are respectively located at two sides of the fixing frame.
Optionally, the fastening member is provided with a mounting hole, and one end of the sliding member passes through the mounting hole and is fixedly connected with the fastening member through a fastener.
Optionally, the elastic member is provided with a first elastic part and a second elastic part, and the first elastic part is provided with a first elastic part and a second elastic part.
Optionally, a first positioning portion is disposed on the blocking piece, a second positioning portion is disposed on the abutting portion and the pressing piece, and the first positioning portion is in nested fit with the corresponding second positioning portion.
Optionally, the blocking piece comprises a first shaft section and a second shaft section which are coaxially connected, and the shaft diameter of the second shaft section is smaller than that of the first shaft section; the second shaft section of the plugging piece is in interference fit with the left half shaft oil sealing hole, and the first shaft section on the plugging piece is used for abutting against the end face of the hole wall of the left half shaft oil sealing hole; the second shaft section of the other plugging piece is in interference fit with the right half shaft oil sealing hole, and the first shaft section on the other plugging piece is used for abutting against the end face of the hole wall of the right half shaft oil sealing hole.
Optionally, a cavity is arranged on the abutting piece, the mounting hole is communicated with the cavity, and the cavity is used for accommodating the fastener and positioning the plugging piece.
Optionally, a limiting boss is arranged on the sliding part, one side of the limiting boss is used for being matched with the fastening piece to fix the abutting piece on the sliding part, and the other side of the limiting boss is used for limiting the sliding limit position of the sliding part by the fixing frame.
The embodiment of the utility model provides a gearbox leakproofness detects auxiliary fixtures, through adopting the driving piece to carry out the mode of application of force to compressing tightly to and under the cooperation of mount and butt portion, can conveniently support tightly two shutoff pieces on the left semi-axis oil blanket hole of the differential mechanism of gearbox and the right semi-axis oil blanket hole with interference fit, simple structure, convenient operation can improve work efficiency.
Drawings
Fig. 1 is a reference diagram illustrating a use state of an auxiliary tool for detecting the sealing performance of a transmission according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of the gearbox tightness detection auxiliary tool in FIG. 1;
fig. 3 is a cross-sectional view of the transmission seal detection auxiliary tool of fig. 2.
The reference numerals in the specification are as follows:
1. a fixed mount;
2. a drive member; 21. an elastic member;
3. a compression member; 31. an abutting piece; 311. a cavity; 32. a slider; 321. a limiting boss;
4. a blocking member; 41. a first positioning portion; 42. a first shaft section; 43. a second shaft section; 44. a shielding cover; 441. a groove;
5. a gearbox;
6. an abutting portion;
7. a fastener;
8. a rotating shaft;
9. a drive rod;
10. a gasket;
20. a second positioning portion.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
As shown in fig. 1-2, the gearbox sealing performance detection auxiliary tool provided by the embodiment of the present invention includes a fixing frame 1, a driving member 2, a pressing member 3, and two plugging members 4;
one block piece 4 is used for being in interference fit with a left half shaft oil seal hole (not shown) of a differential of the gearbox 5, and the other block piece 4 is used for being in interference fit with a right half shaft oil seal hole (not shown) of the differential;
the fixed frame 1 is provided with a butting part 6 for butting against one plugging piece 4, and the pressing piece 3 is arranged on the fixed frame 1 in a sliding way, is opposite to the butting part 6 and is used for butting against the other plugging piece 4;
on the mount 1 was located to driving piece 2, driving piece 2 was used for the drive to compress tightly piece 3 and moves towards the direction that is close to butt portion 6 to make and compress tightly piece 3 and butt portion 6 support two shutoff pieces 4 tightly respectively.
During the use, with two shutoff pieces 4 respectively interference fit on the left half axle oil blanket hole and the right half axle oil blanket hole of the differential mechanism of gearbox 5, with butt portion 6 and a shutoff piece 4 butt, compress tightly 3 orientation through the drive of driving piece 2 drive and remove near butt portion 6's direction, under the effect of the drive power of driving piece 2, make to compress tightly 3 and butt portion 6 and can support two shutoff pieces 4 respectively tightly, in order to prevent to carry out the sealing performance test to gearbox 5, two shutoff pieces 4 deviate from the oil blanket hole that corresponds.
The embodiment of the utility model provides a gearbox leakproofness detects auxiliary fixtures compares with prior art, through adopting driving piece 2 to compressing tightly 3 modes that carry out the application of force to and under the cooperation of mount 1 and butt portion 6, can conveniently support tightly two shutoff pieces 4 on the left half axle oil blanket hole of the differential mechanism of gearbox 5 and the right half axle oil blanket hole with interference fit, simple structure, convenient operation can improve work efficiency.
Wherein, the plug 4 can carry out the adaptation according to the gearbox of different models to be suitable for the gearbox of different models, and mount 1 can remain unchanged, and driving piece 2 and compressing tightly 3 also can remain unchanged even, has realized gearbox leakproofness detects auxiliary fixtures's universalization, the cost is reduced.
In an embodiment, the fixing frame 1 can be formed by welding a square tube and a steel plate, and plays a role in supporting and connecting the driving piece 2, the pressing piece 3 and the abutting part 6, so that sufficient reaction force is provided for the driving piece 2, the pressing piece 3 and the abutting part 6.
In an embodiment, as shown in fig. 2 and 3, the driving member 2 comprises an elastic member 21;
the pressing piece 3 comprises a propping piece 31 and a sliding piece 32, the propping piece 31 is fixedly arranged at one end of the sliding piece 32, and the sliding piece 32 is connected with the fixed frame 1 in a sliding way;
the elastic member 21 is disposed between the abutting member 31 and the fixing frame 1, and the elastic member 21 is used for providing an elastic force to drive the abutting member 31 to move toward a direction close to the abutting portion 6, so that the abutting member 31 and the abutting portion 6 respectively abut against the two plugging members 4. By adopting the elastic force driving mode of the elastic member 21, the abutting member 31 and the abutting portion 6 can be abutted against the two plugging members 4 respectively and conveniently.
For example, the elastic member 21 may be a compressed spring, the compressed spring is in a compressed state in an initial state, after the two plugging members 4 are respectively in interference fit with the left half-shaft oil seal hole and the right half-shaft oil seal hole of the differential of the transmission 5, the abutting portion 6 abuts against one plugging member 4, the pressing member 3 moves toward a direction close to the abutting portion 6 under the action of elastic force until abutting against the other plugging member 4, and at this time, the elastic force of the compressed spring acts on the plugging member 4 as a force for abutting against the plugging member 4, and the abutting effect on the two plugging members 4 is achieved together with the abutting portion 6.
In an embodiment, as shown in fig. 2, the auxiliary tool for gearbox tightness detection further includes a rotating shaft 8 and a driving rod 9;
the driving rod 9 is rotatably connected with the sliding part 32 through the rotating shaft 8 and is abutted against the fixed frame 1;
when actuating lever 9 rotates for slider 32, actuating lever 9 rotates for mount 1, and drive pivot 8 under the reaction force of mount 1 and remove towards the direction of keeping away from shutoff piece 4, so that slider 32 slides towards the direction of keeping away from shutoff piece 4, so that shutoff piece 4 rather than the butt is kept away from to retaining piece 31, realize that gearbox leakproofness detects auxiliary fixtures and separates from two shutoff pieces 4, realized supporting tight shutoff piece 4 fast and from the effect of quick separation on shutoff piece 4 together with elastic component 21, and the work efficiency is improved, and the time is saved.
Specifically, as shown in fig. 2, the axial direction of the rotating shaft 8 is perpendicular to the direction in which the slider 32 slides.
In one embodiment, as shown in fig. 2, the end of the driving rod 9 connected to the sliding member 32 directly abuts against the fixing frame 1, and no other parts are required to be added, so that the structure of driving the sliding member 32 away from the block piece 4 is more compact.
In an embodiment, as shown in fig. 2, the elastic element 21 is a cylindrical spring sleeved on the sliding element 32, and the abutting element 31 and the driving rod 9 are respectively located at two sides of the fixing frame 1. The driving rod 9 can be conveniently operated by the arrangement mode.
In one embodiment, as shown in fig. 3, the abutting member 31 is provided with a mounting hole (not labeled), and one end of the sliding member 32 passes through the mounting hole and is fixedly connected with the abutting member 31 through the fastening member 7. The abutting member 31 and the sliding member 32 are of a split structure (i.e. the abutting member 31 and the sliding member 32 are of two independent structures), so that the elastic member 21 can be conveniently sleeved on the sliding member 32.
The fastening member 7 may be a nut, which facilitates the fixed connection between the sliding member 32 and the fastening member 31.
In one embodiment, as shown in fig. 2, the gearbox tightness detection auxiliary tool further includes a gasket 10, the gasket 10 is disposed between the elastic member 21 and the fixing frame 1,
of course, the gasket 10 can also be arranged between the elastic member 21 and the abutting member 31,
or the gaskets 10 are arranged between the elastic element 21 and the fixed frame 1 and between the elastic element 21 and the abutting element 31. The pads 10 with different thicknesses are replaced according to the requirements of clamping the plugging member, so that the elastic force of the elastic member 21 acting on the abutting member 31 when the abutting member 31 abuts on the corresponding plugging member 4 can be different.
In an embodiment, as shown in fig. 3, the blocking member 4 is provided with a first positioning portion 41, the abutting portion 6 and the pressing member 3 are respectively provided with a second positioning portion 20, and the first positioning portion 41 is nested and matched with the corresponding second positioning portion 20. The abutting parts 6 and the pressing pieces 3 can be conveniently positioned and abutted on the corresponding plugging pieces 4 by arranging the first positioning parts 41 and the second positioning parts 20.
In one embodiment, as shown in fig. 2, the blocking member 4 comprises a first shaft section 42 and a second shaft section 43 which are coaxially connected, wherein the shaft diameter of the second shaft section 43 is smaller than that of the first shaft section 42; the second shaft section 43 of the plugging piece 4 is in interference fit with the left half shaft oil seal hole, and the first shaft section 42 on the plugging piece is used for abutting against the end face of the hole wall of the left half shaft oil seal hole; the second shaft section 43 of the other plugging piece 4 is in interference fit with the right half shaft oil sealing hole, and the first shaft section 42 on the other plugging piece is used for abutting against the end face of the hole wall of the right half shaft oil sealing hole. By setting the shaft diameter of the second shaft section 43 to be smaller than the shaft diameter of the first shaft section 42, the plugging member 4 can be conveniently installed and positioned on the corresponding oil sealing hole.
In one embodiment, as shown in fig. 3, the abutting member 31 is provided with a cavity 311, and a mounting hole (not labeled) is communicated with the cavity 311, the cavity 311 is used for accommodating the fastening member 7 and for positioning the plugging member 4. The positioning and tightening of the plugging piece 4 can be facilitated by the cavity 311, and the fastener 7 can be conveniently installed by the cavity 311, so that one end of the sliding piece 32, which penetrates through the installation hole, is fixedly connected with the tightening piece 31.
In an embodiment, as shown in fig. 3, the sliding part 32 is provided with a limiting boss 321, one side of the limiting boss 321 is used for cooperating with the fastening part 7 to fix the fastening part 31 on the sliding part 32, and the other side of the limiting boss 321 is used for limiting the sliding limit position of the sliding part 32 by the fixing frame 1. The limiting boss 321 is provided on the sliding member 32, so that the abutting member 31 can be fixed on the sliding member 32 by being matched with the fastening member 7, and can be stopped by the fixing frame 1, thereby limiting the sliding distance of the sliding member 32 (when moving in a direction away from the abutting portion 6).
In one embodiment, as shown in fig. 1 to 3, the blocking piece 4 is provided with a shielding cover 44, a side of the shielding cover 44 facing the transmission case 5 is provided with a partial groove 441 surrounding the periphery of the blocking piece 4 and used for being embedded into the housing of the transmission case 5, and when the blocking piece 4 is in interference fit with a corresponding oil sealing hole, the shielding portion 44 covers the housing of the transmission case 5 to perform a sealing function.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A gearbox leakproofness detection auxiliary tool is characterized by comprising a fixing frame, a driving piece, a pressing piece and two plugging pieces;
one plugging piece is used for being in interference fit with a left half shaft oil seal hole of a differential of a gearbox, and the other plugging piece is used for being in interference fit with a right half shaft oil seal hole of the differential;
the fixed frame is provided with a butting part for butting against one plugging piece, and the pressing piece is arranged on the fixed frame in a sliding manner, is opposite to the butting part and is used for butting against the other plugging piece;
the driving piece is arranged on the fixing frame and used for driving the pressing piece to move towards the direction close to the abutting part, so that the pressing piece and the abutting part respectively abut against the two plugging pieces.
2. The gearbox tightness detection auxiliary tool according to claim 1, wherein the driving member comprises an elastic member;
the pressing piece comprises a propping piece and a sliding piece, the propping piece is fixedly arranged at one end of the sliding piece, and the sliding piece is connected with the fixed frame in a sliding manner;
the elastic piece is arranged between the abutting piece and the fixing frame and used for providing elastic force to drive the abutting piece to move towards the direction close to the abutting part, so that the abutting piece and the abutting part abut against the two plugging pieces respectively.
3. The gearbox tightness detection auxiliary tool according to claim 2, further comprising a rotating shaft and a driving rod;
the driving rod is rotatably connected with the sliding piece through the rotating shaft and is abutted against the fixed frame;
when the driving rod rotates relative to the sliding part, the driving rod rotates relative to the fixed frame, and the rotating shaft is driven to move towards the direction far away from the plugging piece under the counter-acting force of the fixed frame.
4. The gearbox tightness detection auxiliary tool according to claim 3, wherein the elastic member is a cylindrical spring sleeved on the sliding member, and the abutting member and the driving rod are respectively located on two sides of the fixing frame.
5. The gearbox tightness detection auxiliary tool according to claim 4, wherein the abutting member is provided with a mounting hole, and one end of the sliding member penetrates through the mounting hole and is fixedly connected with the abutting member through a fastening member.
6. The gearbox tightness detection auxiliary tool according to claim 2, further comprising a gasket, wherein the gasket is arranged between the elastic member and the fixing frame and/or between the elastic member and the abutting member.
7. The gearbox tightness detection auxiliary tool according to claim 1, wherein a first positioning portion is arranged on the blocking piece, a second positioning portion is arranged on the abutting portion and the pressing piece respectively, and the first positioning portion is in nested fit with the corresponding second positioning portion.
8. The gearbox tightness detection auxiliary tool according to claim 1, wherein the plugging piece comprises a first shaft section and a second shaft section which are coaxially connected, and the shaft diameter of the second shaft section is smaller than that of the first shaft section; the second shaft section of the plugging piece is in interference fit with the left half shaft oil sealing hole, and the first shaft section on the plugging piece is used for abutting against the end face of the hole wall of the left half shaft oil sealing hole; the second shaft section of the other plugging piece is in interference fit with the right half shaft oil sealing hole, and the first shaft section on the other plugging piece is used for abutting against the end face of the hole wall of the right half shaft oil sealing hole.
9. The gearbox tightness detection auxiliary tool according to claim 5, wherein a cavity is formed in the abutting member, the mounting hole is communicated with the cavity, and the cavity is used for accommodating the fastening member and positioning the plugging member.
10. The gearbox tightness detection auxiliary tool according to claim 5, wherein a limiting boss is arranged on the sliding part, one side of the limiting boss is used for being matched with the fastening piece to fix the abutting piece on the sliding part, and the other side of the limiting boss is used for limiting the sliding limit position of the sliding part by the fixing frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020977972.7U CN211978244U (en) | 2020-06-01 | 2020-06-01 | Gearbox leakproofness detects auxiliary fixtures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020977972.7U CN211978244U (en) | 2020-06-01 | 2020-06-01 | Gearbox leakproofness detects auxiliary fixtures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211978244U true CN211978244U (en) | 2020-11-20 |
Family
ID=73370126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020977972.7U Active CN211978244U (en) | 2020-06-01 | 2020-06-01 | Gearbox leakproofness detects auxiliary fixtures |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211978244U (en) |
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2020
- 2020-06-01 CN CN202020977972.7U patent/CN211978244U/en active Active
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