CN219242593U - Locking nut anti-return device - Google Patents
Locking nut anti-return device Download PDFInfo
- Publication number
- CN219242593U CN219242593U CN202320365591.7U CN202320365591U CN219242593U CN 219242593 U CN219242593 U CN 219242593U CN 202320365591 U CN202320365591 U CN 202320365591U CN 219242593 U CN219242593 U CN 219242593U
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- CN
- China
- Prior art keywords
- transmission shaft
- circular arc
- locking nut
- snap ring
- lock nut
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a locking nut anti-return device. The locking nut anti-retreating device comprises a driving box, wherein the driving box is pivoted with a transmission shaft, one end of the transmission shaft extending out of the driving box is sleeved with a locking bearing, the driving box is provided with a counter bore for accommodating the locking bearing, the outer side of the locking bearing is provided with a locking nut in threaded connection with the transmission shaft, the outer side of the locking nut is provided with a clamping ring sleeved with the transmission shaft, the clamping ring is fixedly connected with the locking nut through a bolt, and the transmission shaft is provided with a clamping groove for blocking the clamping ring from retreating. The utility model solves the problems that the retaining pad in the prior art is easy to break, so that the locking nut is loosened, the bearing is loosened, the abrasion of the transmission shaft is quickened, and the service life of the transmission shaft is shortened.
Description
Technical Field
The utility model relates to the technical field of mechanical equipment, in particular to a locking nut anti-return device.
Background
In the structure of the driving box body of the push bench, the bearing is an important component part, and in order to avoid looseness of the bearing, a method for adding a backstop pad by adopting double nuts is commonly used at present. However, the driving box body is in a low-speed heavy-load state in the forward and reverse transferring process, the working condition is complex, the transmission shaft is subjected to multidirectional force, the stop pad is easy to break, the locking nut is loosened, the bearing is loosened, the abrasion of the transmission shaft is accelerated, and the service life of the transmission shaft is shortened.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provides a locking nut anti-return device which can prevent a locking nut from loosening and prolong the service life of a transmission shaft.
In order to achieve the above purpose, the lock nut anti-back device of the utility model adopts the following technical scheme:
the utility model provides a lock nut anti-backing device, includes the drive box, and the drive box pin joint has the transmission shaft, and the one end that the transmission shaft stretched out the drive box has cup jointed locking bearing, and the drive box has been seted up and has been acceptd locking bearing's counter bore, and locking bearing's the outside is provided with the lock nut with transmission shaft threaded connection, the outside of lock nut is provided with the snap ring that cup joints with the transmission shaft, and the snap ring passes through bolt and lock nut rigid coupling, and the draw-in groove that blocks the snap ring and retreat is seted up to the transmission shaft.
Preferably, the snap ring is formed by encircling two circular arc rings, and each circular arc ring is provided with a plurality of bolt through holes which are uniformly distributed in the circumference.
Preferably, the snap ring is formed by encircling three circular arc rings, and each circular arc ring is provided with a plurality of bolt through holes which are uniformly distributed in the circumference.
Preferably, the snap ring is formed by encircling four circular arc rings, and each circular arc ring is provided with a plurality of bolt through holes which are uniformly distributed in the circumference.
Compared with the prior art, the utility model has the following advantages:
the clamping groove prevents the clamping ring from retreating, so that the locking nut is prevented from loosening, the locking bearing is prevented from loosening, the inner ring of the locking bearing is prevented from accelerating abrasion to the transmission shaft after the locking bearing is misplaced, and the service life of the transmission shaft is prolonged.
Drawings
FIG. 1 is a schematic view of a cage nut anti-back-out device;
FIG. 2 is an enlarged view at C of FIG. 1;
FIG. 3 is a schematic view of the structure of embodiment 1 of the snap ring;
FIG. 4 is a schematic view of the structure of embodiment 2 of the snap ring;
fig. 5 is a schematic structural view of snap ring embodiment 3.
The device comprises a driving box 1, a counter bore 11, a transmission shaft 2, a clamping groove 21, a locking bearing 3, a locking nut 4, a clamping ring 5, an arc ring 51, a bolt through hole 52 and a bolt 6.
Detailed Description
The present utility model is further illustrated in the accompanying drawings and detailed description which are to be understood as being merely illustrative of the utility model and not limiting of its scope, since various equivalent modifications to the utility model will fall within the scope of the appended claims to the skilled person after reading the utility model.
As shown in fig. 1-2, a locking nut anti-retreating device comprises a driving box 1, wherein the driving box is pivoted with a transmission shaft 2, one end of the transmission shaft extending out of the driving box is sleeved with a locking bearing 3, the driving box is provided with a counter bore 11 for accommodating the locking bearing, the outer side of the locking bearing is provided with a locking nut 4 in threaded connection with the transmission shaft, the outer side of the locking nut is provided with a clamping ring 5 sleeved with the transmission shaft, the clamping ring is fixedly connected with the locking nut through a bolt 6, and the transmission shaft is provided with a clamping groove 21 for blocking the clamping ring from retreating. For easy installation, the snap ring needs to be in a separate form, specifically, three forms as follows.
As shown in fig. 3, in embodiment 1 of the snap ring, two circular arc rings 51 are enclosed, and each circular arc ring is provided with four bolt through holes 52 uniformly distributed in circumference.
As shown in fig. 4, in embodiment 2 of the snap ring, three circular arc rings 51 are formed by encircling, and each circular arc ring is provided with three bolt through holes 52 uniformly distributed in the circumference.
As shown in fig. 5, in embodiment 3 of the snap ring, four circular arc rings 51 are enclosed, and each circular arc ring is provided with two bolt through holes 52 uniformly distributed in circumference.
The form of the snap ring is selected according to the installation operation space, and two circular arc rings are selected as far as possible to form the snap ring under the condition that the installation operation space allows.
The concrete working process and principle of the locking nut anti-return device are as follows: the circular arc ring is sequentially clamped into the clamping groove, the bolts are used for fastening the circular arc ring and the locking nuts, the clamping groove prevents the circular arc ring from retreating, so that the locking nuts are prevented from loosening, the locking bearings are prevented from being misplaced, the inner ring of the locking bearings is prevented from accelerating abrasion to the transmission shaft, and therefore the service life of the transmission shaft is prolonged.
Claims (4)
1. The utility model provides a lock nut anti-backing device, includes the drive box, and the drive box pin joint has the transmission shaft, and the one end that the transmission shaft stretched out the drive box has cup jointed locking bearing, and the counter bore of acceping locking bearing has been seted up to the drive box, and locking bearing's outside is provided with the lock nut with transmission shaft threaded connection, its characterized in that: the outside of lock nut is provided with the snap ring that cup joints with the transmission shaft, and the snap ring passes through bolt and lock nut rigid coupling, and the transmission shaft has been seted up the draw-in groove that stops the snap ring and retreated.
2. The lock nut recession preventing device according to claim 1, wherein: the snap ring is formed by encircling two circular arc rings, and each circular arc ring is provided with a plurality of bolt through holes which are uniformly distributed in the circumference.
3. The lock nut recession preventing device according to claim 1, wherein: the snap ring is formed by encircling three circular arc rings, and each circular arc ring is provided with a plurality of bolt through holes which are uniformly distributed in the circumference.
4. The lock nut recession preventing device according to claim 1, wherein: the snap ring is formed by encircling four circular arc rings, and each circular arc ring is provided with a plurality of bolt through holes which are uniformly distributed in the circumference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320365591.7U CN219242593U (en) | 2023-03-02 | 2023-03-02 | Locking nut anti-return device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320365591.7U CN219242593U (en) | 2023-03-02 | 2023-03-02 | Locking nut anti-return device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219242593U true CN219242593U (en) | 2023-06-23 |
Family
ID=86804659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320365591.7U Active CN219242593U (en) | 2023-03-02 | 2023-03-02 | Locking nut anti-return device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219242593U (en) |
-
2023
- 2023-03-02 CN CN202320365591.7U patent/CN219242593U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |