CN220830368U - Key structure for preventing coupler from moving - Google Patents
Key structure for preventing coupler from moving Download PDFInfo
- Publication number
- CN220830368U CN220830368U CN202322073636.6U CN202322073636U CN220830368U CN 220830368 U CN220830368 U CN 220830368U CN 202322073636 U CN202322073636 U CN 202322073636U CN 220830368 U CN220830368 U CN 220830368U
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- arc
- coupler
- key
- clamping block
- shaped
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- 230000008878 coupling Effects 0.000 claims description 27
- 238000010168 coupling process Methods 0.000 claims description 27
- 238000005859 coupling reaction Methods 0.000 claims description 27
- 238000006073 displacement reaction Methods 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 230000005465 channeling Effects 0.000 description 4
- 230000002265 prevention Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- Clamps And Clips (AREA)
Abstract
The utility model provides a key structure for preventing a coupler from moving, which is respectively arranged between a key groove in a flange of the coupler and a power output shaft of a motor and a power input shaft of equipment, and comprises the following components: a square key body; the arc-shaped clamping block is vertically provided with a threaded hole; the limiting assembly is provided with a limiting ridge propped against the coupler flange and an arc-shaped bottom plate attached to the arc-shaped clamping block, a connecting hole is formed in the arc-shaped bottom plate corresponding to the threaded hole, and a limiting screw penetrates through the connecting hole and the threaded hole to fix the limiting assembly with the arc-shaped clamping block; and the positioning hole is positioned at one side of the square key body, which is close to the arc-shaped clamping block, and the head end of the positioning screw on the coupler is propped against the positioning hole. The utility model can position the connecting flange of the coupler, the output shaft of the motor and the input shaft of the mechanical equipment together, does not generate displacement and the problem that the mechanical equipment does not work, is an anti-channeling key for ensuring the normal operation of the mechanical equipment, and is a protection key for safe production and inexpensiveness.
Description
Technical Field
The utility model belongs to the field of mechanical connection, and particularly relates to a key structure for preventing a coupler from moving.
Background
As is well known, the power output of the motor is generally realized by using keys, when the middle is a coupling for connection, the mounting concentricity is problematic, at the moment, the working coupling can displace along with the key, so that the coupling displaces from the middle to the two sides, and finally, the power output by the motor can not be transmitted to working mechanical equipment; the motor is unloaded and the mechanical equipment is not working.
Disclosure of utility model
It is an object of the present utility model to provide a key structure that prevents play of a coupling and provides at least the advantages that will be described later.
Another object of the present utility model is to provide a key structure for preventing the movement of the coupling, which is capable of positioning the connection flange of the coupling, the output shaft of the motor and the input shaft of the mechanical equipment together, and is free from the problems of displacement and non-operation of the mechanical equipment, is a tamper-proof key for ensuring the normal operation of the mechanical equipment, and is a tamper-proof key for safe production.
The technical scheme of the utility model is as follows:
The key structure of preventing the shaft coupling drunkenness, it sets up respectively in the shaft coupling flange between keyway and motor power output shaft and the equipment power input shaft, the key structure of preventing the shaft coupling drunkenness includes:
One end of the square key body is of an arc structure and is positioned on one side of the key slot close to the center of the coupler;
The arc-shaped clamping block is positioned at the other end of the square key body, and a threaded hole is vertically formed in the arc-shaped clamping block;
the limiting assembly is provided with a limiting ridge propped against the coupler flange and an arc-shaped bottom plate attached to the arc-shaped clamping block, a connecting hole is formed in the arc-shaped bottom plate corresponding to the threaded hole, and a limiting screw penetrates through the connecting hole and the threaded hole to fix the limiting assembly with the arc-shaped clamping block;
And the positioning hole is positioned at one side of the square key body, which is close to the arc-shaped clamping block, and the end of the positioning screw head on the coupler is propped against the positioning hole.
Preferably, in the key structure for preventing the movement of the coupling, the positioning hole is a porous connecting hole structure and is arranged along the length direction of the square key body.
Preferably, in the key structure for preventing the movement of the coupling, the square key body has a clamping shaft key surface attached to the power output shaft of the motor or the power input shaft of the device, a clamping convex key surface attached to the inner wall of the flange of the coupling, an arc-shaped end surface and a flat end surface.
Preferably, in the key structure for preventing the coupler from moving, the arc-shaped clamping block is provided with a connecting end face, an arc-shaped clamping face, a clamping shaft face and a connecting face, wherein the connecting end face is attached to the flat end face, the arc-shaped clamping face is attached to the inner wall of the coupler flange, the clamping shaft face is located at the bottom, and the connecting face is located at the top.
Preferably, in the key structure for preventing the coupler from moving, the arc-shaped bottom plate is attached to the connecting surface, the limiting ridge is arranged along the diameter direction of the arc-shaped bottom plate, and the cross section of the limiting ridge is trapezoid.
The utility model has the following beneficial effects:
1. One end of the traditional square key with two ends provided with an arc shape is provided with a limiting component, so that the connecting flange of the coupler is prevented from moving on the shaft.
2. Drilling holes in parallel at one end of the arc square key of the traditional two belts, wherein the limiting assembly is arranged at one end of the arc square key, and after a set screw arranged on a flange of a coupler is screwed in, the end head enters the drilling holes; preventing the connection flange of the coupling from shifting on the shaft.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.
Drawings
FIG. 1 is a schematic view of one embodiment of a key structure for preventing play of a coupling provided by the present utility model;
FIG. 2 is a schematic diagram of a limiting assembly in one embodiment of a key structure for preventing movement of a coupling according to the present utility model;
FIG. 3 is a schematic view of a square key body in an embodiment of a key structure for preventing movement of a coupling according to the present utility model;
Fig. 4 is a schematic structural view of an arc-shaped clamping block in an embodiment of a key structure for preventing a coupler from moving.
Detailed Description
The present utility model is described in further detail below with reference to the drawings to enable those skilled in the art to practice the utility model by referring to the description.
It will be understood that terms, such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1 and 2, the present utility model provides a coupling play preventing key structure provided between a key groove in a coupling flange and a motor power output shaft and a device power input shaft, respectively, the coupling play preventing key structure comprising:
one end of the square key body 1 is of an arc structure and is positioned on one side of the key slot close to the center of the coupler;
The arc-shaped clamping block 2 is positioned at the other end of the square key body 1, and a threaded hole 21 is vertically formed in the arc-shaped clamping block 2;
the limiting assembly 3 is provided with a limiting ridge 31 propped against the coupler flange and an arc-shaped bottom plate 32 attached to the arc-shaped clamping block 2, a connecting hole 33 is formed in the arc-shaped bottom plate 32 corresponding to the threaded hole 21, and a limiting screw penetrates through the connecting hole 33 and the threaded hole 21 to fix the limiting assembly 3 with the arc-shaped clamping block 1;
and the positioning hole 4 is positioned on one side of the square key body 1, which is close to the arc-shaped clamping block 2, and the end of the positioning screw on the coupler is propped against the positioning hole 4.
In an embodiment of the key structure for preventing the movement of the coupling according to the present utility model, the positioning hole 4 is a multi-hole structure and is disposed along the length direction of the square key body 1.
As shown in fig. 3, in one embodiment of the key structure for preventing the movement of the coupling according to the present utility model, the square key body 1 has a clamping key surface 11 that is attached to the motor power output shaft or the device power input shaft, a clamping convex key surface 12 that is attached to the inner wall of the coupling flange, an arc-shaped end surface 13, and a flat end surface 14.
In one embodiment of the key structure for preventing the movement of the coupling according to the present utility model, as shown in fig. 4, the arc-shaped locking block 2 has a connection end surface 22 that is attached to the flat end surface 14, an arc-shaped locking surface 23 that is attached to the inner wall of the flange of the coupling, a locking surface 24 at the bottom, and a connection surface 25 at the top.
In one embodiment of the key structure for preventing the movement of the coupling according to the present utility model, the arc-shaped bottom plate 32 is attached to the connection surface 25, the limiting ridge 31 is disposed along the diameter direction of the arc-shaped bottom plate 32, and the cross section of the limiting ridge 31 is trapezoidal.
The key structure provided by the utility model is arranged on a power output shaft of a motor, one end with a limiting component and an arc-shaped clamping block is arranged on one side close to the motor, key grooves of a connecting flange of a coupler are aligned with keys on the shaft, and a hand hammer is used for putting in place; the other key structure is arranged on an input shaft of the mechanical equipment, and one end with the limiting component and the arc-shaped clamping block is arranged on one side close to the equipment; aligning the key slot of the connecting flange of the coupler with the key on the shaft, and putting the hammer into place; the power transmission teeth of the coupler are aligned, and the shafts of the motor, the coupler and the mechanical equipment are concentrically adjusted. The motor and the mechanical equipment are fixed. After the installation position of the coupler flange is adjusted to be qualified, the limit edge of the limit component is abutted against the tail end of the coupler flange, and the arc-shaped bottom plate is connected with the connecting surface of the arc-shaped clamping block by using a fixing screw, so that the first safety of the channeling-preventing key is realized; the self-contained set screw on the coupler is screwed down, and the automatic bolt head is abutted against the channeling prevention hole center of the set hole, so that the second channel of channeling prevention safety of the channeling prevention key is realized. At the moment, the power of the motor is not displaced through the connecting flange between the coupler and the power input shaft of the mechanical equipment, and the power transmission work is not middle.
The utility model has the following advantages:
1. the traditional square key can only play a role in transmitting power; the utility model not only can transmit power, but also can firmly connect the power shaft with the connecting flange together to stably transmit power.
2. The traditional square key has a smooth surface, is not beneficial to limiting a set screw, and once the center displacement and the like are encountered, the connecting flange can move along with the power shaft, so that power transmission is interrupted; the utility model can not generate flange movement and power transmission interruption due to the influence of factors such as center displacement and the like.
The flange anti-channeling key can find the concentricity, namely the center, of the motor and the input shaft of the mechanical equipment according to the rotation of the power shaft.
The utility model has the following three characteristics:
1. And positioning holes are aligned and positioned by positioning screws and positioning holes on the flange.
2. The anti-channeling limit clamp is characterized in that a limit edge is used for preventing a connecting flange of the coupler from generating displacement on a power shaft.
3. The circumferential channeling prevention of the arc-shaped clamping blocks is realized.
Although embodiments of the present utility model have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the utility model would be readily apparent to those skilled in the art, and accordingly, the utility model is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (5)
1. Prevent key structure of shaft coupling drunkenness, it sets up respectively in the shaft coupling flange between keyway and motor power output shaft and the equipment power input shaft, its characterized in that includes:
One end of the square key body is of an arc structure and is positioned on one side of the key slot close to the center of the coupler;
The arc-shaped clamping block is positioned at the other end of the square key body, and a threaded hole is vertically formed in the arc-shaped clamping block;
the limiting assembly is provided with a limiting ridge propped against the coupler flange and an arc-shaped bottom plate attached to the arc-shaped clamping block, a connecting hole is formed in the arc-shaped bottom plate corresponding to the threaded hole, and a limiting screw penetrates through the connecting hole and the threaded hole to fix the limiting assembly with the arc-shaped clamping block;
And the positioning hole is positioned at one side of the square key body, which is close to the arc-shaped clamping block, and the end of the positioning screw head on the coupler is propped against the positioning hole.
2. The key structure for preventing a coupler from moving according to claim 1, wherein the positioning hole is a multi-hole structure and is provided along a length direction of the square key body.
3. The key structure for preventing a coupler from moving according to claim 2, wherein said square key body has a snap key face which is fitted to said motor power output shaft or said equipment power input shaft, a snap convex key face which is fitted to an inner wall of said coupler flange, an arc-shaped end face and a flat end face.
4. A key structure for preventing a coupler from moving according to claim 3, wherein said arc-shaped block has a connection end face fitted to said flat end face, an arc-shaped catching face fitted to an inner wall of said coupler flange, a catching face at a bottom portion and a connection face at a top portion.
5. The key structure for preventing a coupler from moving according to claim 4, wherein the arc-shaped bottom plate is attached to the connecting surface, the limit ridge is arranged along the diameter direction of the arc-shaped bottom plate, and the cross section of the limit ridge is trapezoidal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322073636.6U CN220830368U (en) | 2023-08-03 | 2023-08-03 | Key structure for preventing coupler from moving |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322073636.6U CN220830368U (en) | 2023-08-03 | 2023-08-03 | Key structure for preventing coupler from moving |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220830368U true CN220830368U (en) | 2024-04-23 |
Family
ID=90727077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322073636.6U Active CN220830368U (en) | 2023-08-03 | 2023-08-03 | Key structure for preventing coupler from moving |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220830368U (en) |
-
2023
- 2023-08-03 CN CN202322073636.6U patent/CN220830368U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |