CN221173866U - Error proofing tool for transmission case - Google Patents
Error proofing tool for transmission case Download PDFInfo
- Publication number
- CN221173866U CN221173866U CN202322973407.XU CN202322973407U CN221173866U CN 221173866 U CN221173866 U CN 221173866U CN 202322973407 U CN202322973407 U CN 202322973407U CN 221173866 U CN221173866 U CN 221173866U
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- CN
- China
- Prior art keywords
- transmission case
- transmission
- protective cover
- unidirectional
- ratchet wheel
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 100
- 230000001681 protective effect Effects 0.000 claims abstract description 37
- 239000000463 material Substances 0.000 claims description 5
- 210000001503 joint Anatomy 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 239000012535 impurity Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- General Details Of Gearings (AREA)
Abstract
The utility model relates to an error-proofing fixture for a transmission case, which relates to the field of assembly detection fixtures, and comprises a protective cover and a unidirectional transmission assembly, wherein the unidirectional transmission assembly is arranged in the protective cover and comprises a transmission case connecting part in transmission connection with a transmission case rotating shaft and a unidirectional limiting structure for unidirectional limiting of the transmission case rotating shaft. The beneficial effects of the utility model are as follows: the output shaft of the transmission case to be tested stretches into the protective cover and is spliced with the connecting part of the transmission case. The protection casing can carry out spacingly to the transmission case testing position to protect the operator. The unidirectional transmission component has unidirectional transmission and reverse cut-off performances. Can be used for detecting the rotation direction of the transmission case and avoiding the error installation of the transmission case.
Description
Technical Field
The utility model relates to the field of assembly detection tools, in particular to an error proofing tool for a transmission case.
Background
The miscellaneous surplus transmission case of harvester is similar spare part, and two kinds of transmission case size outward appearance are the same, and work rotation direction is opposite (when the input shaft of two kinds of transmission cases rotates the same direction, the output shaft rotation direction is opposite), is difficult for distinguishing, has the wrong dress phenomenon, leads to the unable normal work of rethreshing ware, causes rethreshing ware jam, influences the complete machine performance.
Disclosure of utility model
The technical problem to be solved by the utility model is how to distinguish two gear boxes with opposite rotation directions.
The technical scheme for solving the technical problems is as follows: the utility model provides a transmission case mistake proofing frock, includes protection casing and one-way drive assembly, one-way drive assembly install in the protection casing, one-way drive assembly is including being used for the transmission case connecting portion and the one-way limit structure of one-way spacing of transmission case pivot transmission connection with the transmission case pivot.
The beneficial effects of the utility model are as follows: the output shaft of the transmission case to be tested stretches into the protective cover and is spliced with the connecting part of the transmission case. The protection casing can carry out spacingly to the transmission case testing position to protect the operator. The unidirectional transmission component has unidirectional transmission and reverse cut-off performances. Can be used for detecting the rotation direction of the transmission case and avoiding the error installation of the transmission case. Taking one of the transmission boxes as an example, when the input shaft of the transmission box rotates clockwise, the transmission box can flexibly rotate, and when the input shaft rotates anticlockwise, the output shaft is limited by the unidirectional transmission assembly, so that the input shaft cannot rotate. In the opposite case, i.e. when the input shaft is rotated anticlockwise, the rotation is flexible, and the description is not required.
On the basis of the technical scheme, the utility model can be improved as follows.
Further, the unidirectional limiting structure comprises a ratchet, a pawl and a spring, the ratchet is rotatably arranged in the protective cover, the connecting part of the transmission case is coaxially arranged on the ratchet, the middle part of the pawl is rotationally connected with the protective cover, one end of the spring is fixedly connected with the protective cover, the other end of the spring is fixedly connected with one end of the pawl, and the spring applies elastic force to the pawl to enable the other end of the pawl to be in butt joint with the side wall of the ratchet.
The beneficial effects of adopting the further scheme are as follows: the ratchet wheel can only rotate in one direction, and when the ratchet wheel rotates reversely, the pawl can be clamped between two adjacent ratchet teeth of the ratchet wheel, so that the reverse rotation of the ratchet wheel is limited. When the transmission case input shaft is rotated clockwise, the ratchet wheel can smoothly rotate; when the input shaft is rotated counterclockwise, the ratchet is restrained by the pawl so as not to be rotatable.
Further, the unidirectional transmission assembly further comprises a bearing, the bearing comprises an inner ring and an outer ring which can rotate relatively, the outer ring is fixedly connected with the protective cover, and the inner ring is fixedly connected with the ratchet wheel.
The beneficial effects of adopting the further scheme are as follows: the bearing enables the ratchet wheel to smoothly rotate in the protective cover.
Further, the outer ring is welded with the protective cover.
Further, the unidirectional transmission assembly further comprises a bearing housing, the bearing housing is fixedly connected with the protective cover, and the outer ring is fixed in the bearing housing.
The beneficial effects of adopting the further scheme are as follows: the bearing housing can protect the bearing, so that impurities are prevented from falling into the bearing, and normal rotation of the bearing is prevented from being influenced.
Further, the protection casing is the semicircle arc.
Further, the ratchet wheel is coaxially arranged with the protective cover and is positioned at one end of the protective cover.
Further, the transmission case connecting portion is coaxially disposed with the ratchet.
Optionally, the transmission case connecting part is a splined hole.
Optionally, the transmission case connecting part is a spline shaft.
Further, the protective cover and the unidirectional transmission component are both made of stainless steel materials.
Drawings
FIG. 1 is a top view of an error proofing fixture for a transmission case of the present utility model;
FIG. 2 is a right side view of the transmission case mistake proofing tool of the present utility model;
Fig. 3 is a schematic structural diagram of the error proofing fixture for the transmission case of the present utility model when the tool is inserted into the transmission case, wherein the two-dot chain line in the figure represents the transmission case.
In the drawings, the list of components represented by the various numbers is as follows:
1. A protective cover; 2. a transmission case connecting part; 3. a ratchet wheel; 4. a pawl; 5. a spring; 6. a bearing; 7. an input shaft; 8. an output shaft.
Detailed Description
The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.
As shown in fig. 1-3, the embodiment provides a transmission case mistake proofing tool, which comprises a protective cover 1 and a unidirectional transmission assembly, wherein the unidirectional transmission assembly is installed in the protective cover 1, and the unidirectional transmission assembly comprises a transmission case connecting part 2 in transmission connection with a transmission case rotating shaft and a unidirectional limiting structure for unidirectional limiting of the transmission case rotating shaft.
The output shaft 8 of the transmission case to be tested stretches into the protective cover 1 and is spliced with the transmission case connecting part 2. The protective cover 1 can limit the detection position of the transmission case and protect an operator. The unidirectional transmission component has unidirectional transmission and reverse cut-off performances. Can be used for detecting the rotation direction of the transmission case and avoiding the error installation of the transmission case. Taking one of the transmission boxes as an example, when the transmission box input shaft 7 is rotated clockwise, the transmission box input shaft can flexibly rotate, and when the transmission box input shaft 7 is rotated anticlockwise, the output shaft 8 is limited by the unidirectional transmission assembly, so that the input shaft cannot rotate. In the opposite case, i.e. when the input shaft 7 is rotated anticlockwise, a flexible rotation is possible, which means that the transmission case is not required. Therefore, the error proofing tool of the scheme can be used for distinguishing two transmission boxes with opposite transmission directions.
On the basis of the technical scheme, the one-way limiting structure comprises a ratchet wheel 3, a pawl 4 and a spring 5, wherein the ratchet wheel 3 is rotatably installed in the protective cover 1, the transmission case connecting part 2 is coaxially arranged on the ratchet wheel 3, the middle part of the pawl 4 is rotationally connected with the protective cover 1, one end of the spring 5 is fixedly connected with the protective cover 1, the other end of the spring 5 is fixedly connected with one end of the pawl 4, and the spring 5 applies elastic force for enabling the other end of the pawl 4 to be in butt joint with the side wall of the ratchet wheel 3 to the pawl 4.
The ratchet wheel 3 can only rotate in one direction, and when the ratchet wheel 3 rotates reversely, the pawl 4 can be clamped between two adjacent ratchet teeth of the ratchet wheel 3, so that the reverse rotation of the ratchet wheel 3 is limited. When the transmission case input shaft 7 is rotated clockwise, the ratchet wheel 3 can smoothly rotate; when the input shaft 7 is rotated counterclockwise, the ratchet 3 is restrained by the pawl 4 so as not to be rotatable.
On the basis of the technical scheme, the unidirectional transmission assembly further comprises a bearing 6, the bearing 6 comprises an inner ring and an outer ring which can rotate relatively, the outer ring is fixedly connected with the protection cover 1, and the inner ring is fixedly connected with the ratchet wheel 3.
The bearing 6 enables the ratchet wheel 3 to smoothly rotate in the protective cover 1.
On the basis of the technical scheme, the outer ring is welded with the protective cover 1.
On the basis of the technical scheme, the unidirectional transmission assembly further comprises a bearing housing, the bearing housing is fixedly connected with the protective cover 1, and the outer ring is fixed in the bearing housing.
The bearing housing can protect the bearing 6, so that impurities are prevented from falling into the bearing 6, and normal rotation of the bearing 6 is prevented from being influenced.
On the basis of the technical scheme, the protective cover 1 is a semicircular arc plate.
On the basis of the technical scheme, the ratchet wheel 3 and the protective cover 1 are coaxially arranged and positioned at one end of the protective cover 1.
On the basis of the technical scheme, the transmission case connecting part 2 and the ratchet wheel 3 are coaxially arranged.
On the basis of the technical scheme, the transmission case connecting part 2 is a spline hole or a spline shaft.
On the basis of the technical scheme, the protective cover 1 and the unidirectional transmission component are made of stainless steel materials.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.
Claims (10)
1. The utility model provides a transmission case mistake proofing frock, its characterized in that includes protection casing (1) and one-way drive assembly, one-way drive assembly install in protection casing (1), one-way drive assembly is including being used for the transmission case connecting portion (2) and the one-way limit structure of one-way spacing of transmission case pivot transmission connection with the transmission case pivot.
2. The transmission case mistake proofing tool according to claim 1, wherein the unidirectional limiting structure comprises a ratchet wheel (3), a pawl (4) and a spring (5), the ratchet wheel (3) is rotatably installed in the protective cover (1), the transmission case connecting portion (2) is coaxially arranged on the ratchet wheel (3), the middle portion of the pawl (4) is rotationally connected with the protective cover (1), one end of the spring (5) is fixedly connected with the protective cover (1), the other end of the spring is fixedly connected with one end of the pawl (4), and the spring (5) applies elastic force to the pawl (4) to enable the other end of the pawl (4) to be in butt joint with the side wall of the ratchet wheel (3).
3. The transmission case mistake proofing tool according to claim 2, wherein the unidirectional transmission assembly further comprises a bearing (6), the bearing (6) comprises an inner ring and an outer ring which can rotate relatively, the outer ring is fixedly connected with the protective cover (1), and the inner ring is fixedly connected with the ratchet wheel (3).
4. A transmission error proofing fixture according to claim 3, wherein the outer ring is welded to the shield (1).
5. A transmission case mistake proofing tool according to claim 3 wherein the unidirectional transmission assembly further comprises a bearing housing fixedly connected to the shield (1), the outer race being secured within the bearing housing.
6. The transmission case mistake proofing tool according to claim 2, wherein the protective cover (1) is a semicircular arc plate.
7. The transmission case mistake proofing tool according to claim 6, wherein the ratchet wheel (3) is coaxially arranged with the protective cover (1) and is positioned at one end of the protective cover (1).
8. A transmission case mistake proofing tool according to any one of claims 1-7 wherein the transmission case connection (2) is a splined hole.
9. A transmission case mistake proofing tool according to any one of claims 1-7 wherein the transmission case connection (2) is a spline shaft.
10. A transmission case error proofing tooling according to any of claims 1-7, wherein the protective cover (1) and the unidirectional transmission assembly are both made of stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322973407.XU CN221173866U (en) | 2023-11-03 | 2023-11-03 | Error proofing tool for transmission case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322973407.XU CN221173866U (en) | 2023-11-03 | 2023-11-03 | Error proofing tool for transmission case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221173866U true CN221173866U (en) | 2024-06-18 |
Family
ID=91438906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322973407.XU Active CN221173866U (en) | 2023-11-03 | 2023-11-03 | Error proofing tool for transmission case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221173866U (en) |
-
2023
- 2023-11-03 CN CN202322973407.XU patent/CN221173866U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |