CN203717592U - Anti-loosening device for locking nut - Google Patents
Anti-loosening device for locking nut Download PDFInfo
- Publication number
- CN203717592U CN203717592U CN201420044124.5U CN201420044124U CN203717592U CN 203717592 U CN203717592 U CN 203717592U CN 201420044124 U CN201420044124 U CN 201420044124U CN 203717592 U CN203717592 U CN 203717592U
- Authority
- CN
- China
- Prior art keywords
- round
- nut
- circular groove
- floating seal
- adjusting sleeve
- Prior art date
- 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.)
- Expired - Fee Related
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- Bolts, Nuts, And Washers (AREA)
Abstract
The utility model relates to an anti-loosening device used for preventing a locking nut from loosening in a boring machine, and aims to provide the anti-loosening device for the locking nut, which is simple in structure and prevents the nut from loosening. The anti-loosening device for the locking nut disclosed by the utility model comprises two round nuts and a stop washer positioned between the two round nuts; a cutting head is arranged at the front end of the boring machine; a floating sealing seat is arranged at the rear end of the cutting head; an annular groove is formed in the inner wall, contacted with the floating sealing seat, of the cutting head; the round nuts are arranged in the annular groove; the two round nuts are arranged in parallel; the round nuts and the floating sealing seat are coaxially arranged; the stop washer is arranged between the two round nuts; the round nut positioned on the right side abuts the left end surface of the floating sealing seat; a floating seating frame is fixedly arranged on the right end surface of the floating sealing seat; the anti-loosening device for the locking nut also comprises an adjustment sleeve; the adjustment sleeve is positioned in the annular groove; the adjustment sleeve and the round nuts are arranged coaxially; the adjustment sleeve is tightly contacted with the round nut positioned on the left side and the annular groove respectively.
Description
Technical field
The utility model relates to a kind of locking device, particularly relates to a kind ofly preventing for development machine the locking device that locking nut is loosening.
Background technique
Development machine operates in down-hole, the working environment of down-hole is very severe, front end at development machine is provided with cutting head 4 ', sometimes need cutting head 4 ' to cut hard rock stratum, in cutting process, the body of development machine can produce violent rocking, as shown in Figure 1, be provided with floating seal seat 5 ' in the rear end of cutting head 4 ', on the inwall that cutting head 4 ' contacts with floating seal seat 5 ', offer a circular groove 6 ', floating seal frame 7 ' is installed on the right side of floating seal seat 5 ', and floating seal seat 5 ' is coaxially installed with floating seal frame 7 ', two round nuts 1 ' that are coaxially installed with on the left side of floating seal seat 5 ', two round nuts 1 ' are placed in circular groove 6 ' side by side, and be positioned at the nut 1 ' on right side near the placement of floating seal seat 5 ', between nut 1 ' on the left of being positioned at and the left side of circular groove 6 ', leave gap, and be provided with lock washer 2 ' between two round nuts 1 ', by the locking effect of the lock washer 2 ' between two round nuts 1 ', floating seal seat 5 ' is closely connected with floating seal frame 7 '.But in the cutting process of development machine, due to the strenuous vibration of body, make round nut 1 ' loosening gradually, cause round nut 1 ' to 5 ' the locking effect inefficacy of floating seal seat, and then cause floating seal seat 5 ' to be moved to the left, between floating seal seat 5 ' and floating seal frame 7 ', occur gap, along with the carrying out of cutting, it is large that gap can become gradually, thereby generation leakage of oil, cause the dry friction of bearing 8 ', the wearing and tearing of aggravation bearing 8 ', cause the damage of bearing 8 '.
Model utility content
The technical problems to be solved in the utility model is to provide a kind of simple in structure, locking nut locking device of effectively preventing nut loosening.
The utility model locking nut locking device, comprise two round nuts and the lock washer between two round nuts, front end at development machine is provided with cutting head, be provided with floating seal seat in the rear end of described cutting head, on the inwall that described cutting head contacts with described floating seal seat, offer a circular groove, in described circular groove, be provided with two round nuts, described two round nuts are placed in circular groove side by side, two round nuts and floating seal seat are coaxially installed, between described two round nuts, be provided with lock washer, be positioned at the round nut on right side near the left side of floating seal seat, between the round nut in left side and the left side of circular groove, leave gap, the right side of described floating seal seat is installed with floating seal frame, also comprise adjusting sleeve, in the gap of wherein said adjusting sleeve between the round nut in left side and the left side of circular groove, described adjusting sleeve and round nut are coaxially installed, the left side close contact of the right side of described adjusting sleeve and the round nut in left side, the right side close contact of the left side of described adjusting sleeve and described circular groove.
The utility model locking nut locking device, the outer peripheral surface of wherein said adjusting sleeve and the inner peripheral surface of described circular groove fit tightly.
The utility model locking nut locking device difference from prior art is that the utility model locking nut locking device also comprises adjusting sleeve, the adjusting sleeve coaxial with round nut is also installed in described circular groove, like this on the basis of original mechanism, increase an adjusting sleeve, because floating seal frame is fixedly mounted in development machine, floating seal seat is closely connected with floating seal frame, be positioned at the round nut on right side and the left side close contact of floating seal seat, two round nuts are positioned at the leftmost side of circular groove, gapped between the round nut on right side and the right side of circular groove, adjusting sleeve is positioned at described gap, and the right side of described adjusting sleeve and the left side close contact of round nut that is positioned at left side, the right side close contact of the left side of described adjusting sleeve and described circular groove, thereby make round nut realize axially locating in axial direction, in the time that round nut is loosening because body vibration rotates, will be adjusted cover withstands, thereby keep the position of round nut in circular groove to keep motionless, effectively place the loosening of round nut, and then avoid forming excessive gap because nut loosening causes sealing between floating seat and sealing floating shelf, cause the generation of Leakage.
Described in the utility model locking nut locking device, the outer peripheral surface of adjusting sleeve and the inner peripheral surface of described circular groove fit tightly, and adjusting sleeve is fixed in circular groove firmly, prevent thereby can play better fixing round nut the effect that round nut is loosening.
Below in conjunction with accompanying drawing, locking nut locking device of the present utility model is described further.
Brief description of the drawings
Fig. 1 is the plan view that the round nut of development machine in prior art is locked floating seal seat;
Fig. 2 is the utility model locking nut locking device plan view.
Embodiment
As shown in Figure 2, the utility model locking nut locking device comprises two round nuts 1, lock washer 2 between two round nuts, be provided with cutting head 4 at the front end of development machine, be provided with floating seal seat 5 in the rear end of cutting head 4, on the inwall that cutting head 4 contacts with floating seal seat 5, offer a circular groove 6, in circular groove 6, be provided with two round nuts 1, two round nuts 1 are placed in circular groove 6 side by side, round nut 1 is positioned on the left side of floating seal seat 5, and two round nuts 1 are coaxially installed with floating seal seat 5, between two round nuts 1, be provided with lock washer 2, and be positioned at the round nut 1 on right side near the placement of floating seal seat 5, between the round nut 1 in left side and the left side of circular groove 6, leave gap, the right side of floating seal seat 5 is installed with floating seal frame 7, also comprise adjusting sleeve 3, adjusting sleeve 3 is positioned at circular groove 6, adjusting sleeve 3 is coaxially installed with round nut 1, the right side of adjusting sleeve 3 and the left side close contact of round nut 1 that is positioned at left side, the right side close contact of the left side of adjusting sleeve 3 and circular groove 6, the inner peripheral surface of the outer peripheral surface of adjusting sleeve 3 and circular groove 6 fits tightly.
The utility model locking nut locking device, on the basis of original mechanism, increase an adjusting sleeve 3, because floating seal frame 7 is fixedly mounted in development machine, floating seal seat 5 is closely connected with floating seal frame 7, be positioned at the round nut 1 on right side and the left side close contact of floating seal seat 5, two round nuts 1 are positioned at the leftmost side of circular groove 6, gapped between the round nut 1 on right side and the right side of circular groove 6, adjusting sleeve 3 is positioned at described gap, and the right side of adjusting sleeve 3 and the left side close contact of round nut 1 that is positioned at left side, the right side close contact of the left side of adjusting sleeve 3 and described circular groove 6, thereby make round nut 1 realize axially locating in axial direction, in the time that round nut 1 is loosening because body vibration rotates, will be adjusted cover 6 withstands, thereby keep the position of round nut 1 in circular groove 6 to keep motionless, effectively place the loosening of round nut 1, and then avoid causing sealing between floating seat 5 and sealing floating shelf 7 because nut 1 is loosening forming excessive gap, thereby avoid the generation of Leakage, also can prevent the damage of bearing 8 simultaneously.
Above-described embodiment is described preferred implementation of the present utility model; not scope of the present utility model is limited; do not departing under the prerequisite of the utility model design spirit; various distortion and improvement that those of ordinary skill in the art make the technical solution of the utility model, all should fall in the definite protection domain of the utility model claims.
Claims (2)
1. a locking nut locking device, comprise two round nuts (1) and be positioned at the lock washer (2) between two round nuts (1), be provided with cutting head (4) at the front end of development machine, be provided with floating seal seat (5) in the rear end of described cutting head (4), on the inwall that described cutting head (4) contacts with described floating seal seat (5), offer circular groove (6), in described circular groove (6), be provided with two round nuts (1), described two round nuts (1) are placed in circular groove (6) side by side, two round nuts (1) are coaxially installed with floating seal seat (5), between described two round nuts (1), be provided with lock washer (2), be positioned at the round nut (1) on right side near the left side of floating seal seat, between round nut (1) on the left of being positioned at and the left side of circular groove (6), leave gap, the right side of described floating seal seat (5) is installed with floating seal frame (7), it is characterized in that: also comprise adjusting sleeve (3), gap between round nut (1) and the left side of circular groove (6) on the left of described adjusting sleeve (3) is arranged in, described adjusting sleeve (3) is coaxially installed with round nut (1), the left side close contact of the round nut (1) in the right side of described adjusting sleeve (3) and left side, the right side close contact of the left side of described adjusting sleeve (3) and described circular groove (6).
2. locking nut locking device according to claim 1, is characterized in that: the inner peripheral surface of the outer peripheral surface of described adjusting sleeve (3) and described circular groove (6) fits tightly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420044124.5U CN203717592U (en) | 2014-01-23 | 2014-01-23 | Anti-loosening device for locking nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420044124.5U CN203717592U (en) | 2014-01-23 | 2014-01-23 | Anti-loosening device for locking nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203717592U true CN203717592U (en) | 2014-07-16 |
Family
ID=51156750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420044124.5U Expired - Fee Related CN203717592U (en) | 2014-01-23 | 2014-01-23 | Anti-loosening device for locking nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203717592U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020029803A1 (en) * | 2018-08-08 | 2020-02-13 | 徐州徐工基础工程机械有限公司 | Cutting apparatus of tunneling machine, and tunneling machine |
-
2014
- 2014-01-23 CN CN201420044124.5U patent/CN203717592U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020029803A1 (en) * | 2018-08-08 | 2020-02-13 | 徐州徐工基础工程机械有限公司 | Cutting apparatus of tunneling machine, and tunneling machine |
| AU2019320140B2 (en) * | 2018-08-08 | 2023-02-02 | Xuzhou Xugong Foundation Construction Machinery Co., Ltd. | Cutting apparatus of tunneling machine, and tunneling machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140716 Termination date: 20160123 |
|
| EXPY | Termination of patent right or utility model |