CN201390610Y - Pin shaft anti-rotating device - Google Patents
Pin shaft anti-rotating device Download PDFInfo
- Publication number
- CN201390610Y CN201390610Y CN200920010219U CN200920010219U CN201390610Y CN 201390610 Y CN201390610 Y CN 201390610Y CN 200920010219 U CN200920010219 U CN 200920010219U CN 200920010219 U CN200920010219 U CN 200920010219U CN 201390610 Y CN201390610 Y CN 201390610Y
- Authority
- CN
- China
- Prior art keywords
- sleeve
- keyways
- pin shaft
- slideway
- keyway
- 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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Abstract
The utility model belongs to the technical field of hoisting machinery, and discloses a pin shaft anti-rotating device for a crawler crane, which is characterized in that two keyways are milled on the outer wall of the bottom of the pin shaft and are symmetrically distributed relative to the axis of the pin shaft, and an anti-rotating key is arranged in each keyway; two slideway keyways which penetrate the whole sleeve in the axial direction are milled on the inner wall of the sleeve outside the pin shaft, and are symmetrically distributed relative to the axis of the sleeve of the pin shaft, and the anti-rotating keys can freely slide along the slideway keyways on the slideway keyways of the sleeve; and when the keys are put in the keyways, the sleeve is screwed on the joint ring of a rotary table hinging lug by nuts. The utility model has the advantages of simple structure, convenient production, does not affect the sliding function of the pin shaft, has very good anti-rotating function; and when in use, the screw thread hole of the baffle at the shaft end and the screw thread hole of the joint ring of the rotary table hinging lug can be accurately aligned so as to overcome the problem that the installation of the baffle at the shaft end has inaccurate alignment.
Description
Technical field
The utility model belongs to the elevator machinery technical field, relates to a kind of bearing pin anti-rotation device that uses on crawler crane.
Background technology
At present, principal arm and turntable bonded assembly bearing pin use axle head baffle plate anti-rotation anti-channeling usually on the crawler crane, but with the method for axle head baffle plate anti-rotation, tapped bore and turntable that bearing pin penetrates on the rear axle end-stopping plate cut with scissors the accurately contraposition of tapped bore that the ear subsides encircle, so bolt can not be installed.At this moment bearing pin must be disassembled again according to making axle head baffle plate tapped bore aim at the direction that turntable hinge ear pastes the ring tapped bore and penetrate, installation process wastes time and energy, and need carry out repeatedly.
Summary of the invention
The technical problems to be solved in the utility model is to overcome existing bearing pin anti-rotation the accurately deficiency of contraposition is installed, and a kind of bearing pin anti-rotation device is provided.This device can not only prevent that bearing pin from rotating by actv., and can make the disposable contraposition of bearing pin accurate, is convenient to the installation of axle head baffle plate.
The technical solution of the utility model is:
Mill out two keyways in the bearing pin bottom outer wall, the axis of two relative bearing pins of keyway is symmetrically distributed, and an antirotation keys is housed in each keyway; Sleeve lining in the bearing pin outside in axial direction mills out two and runs through the axial slideway keyway of entire sleeve, and these two slideway keyways are the axis of bearing pin sleeve symmetrical distribution relatively also; Antirotation keys can be free to slide along the slideway keyway on the slideway keyway of sleeve; After antirotation keys is put into keyway, sleeve is screwed on the subsides ring of turntable hinge ear with bolt.
The beneficial effects of the utility model are simple in structure, and are easy to make, do not influence the function of pin slide, have the function of good anti-rotation; Can make the contraposition of axle head baffle plate tapped bore and turntable hinge ear subsides ring tapped bore accurate during use, overcome the axle head baffle plate the inaccurate problem of contraposition that exists is installed.
Description of drawings
Fig. 1 is the front view of the utility model before installation.
Fig. 2 be antirotation keys when not entering the slideway keyway left cutaway view.
Fig. 3 is the front view of antirotation keys when entering the slideway keyway.
Fig. 4 is the left cutaway view of antirotation keys when entering the slideway keyway.
Fig. 5 is the front view of the utility model when being installed on the turntable.
Among the figure: 1 keyway; 2 bearing pins; 3 antirotation keys; 4 slideway keyways; 5 sleeves; The subsides ring of 6 hinge ears.
The specific embodiment
Be described in detail specific embodiment of the utility model below in conjunction with technical scheme and accompanying drawing.
Embodiment:
In Fig. 1, earlier bearing pin 2 is inserted in the sleeves 5, to keyway 1 just in the outside of sleeve 5, if keyway 1 is corresponding with sliding keyway 4 on the sleeve 5 on the bearing pin 2, as shown in Figure 2, then antirotation keys 3 is put into the keyway 1 on the bearing pin 2, as shown in Figure 3; Otherwise, use instrument rotary pin shaft 2 corresponding with sliding keyway 4 on the sleeve 5 to keyway 1, again antirotation keys 3 is put into the keyway 1 of bearing pin 2, its left cutaway view is as shown in Figure 4.
Slidiing pin 2 to antirotation keys 3 is screwed in the subsides ring 6 that turntable cuts with scissors ear with bolt after entering in the sleeve 5 fully with sleeve 5, as shown in Figure 5, this moment, antirotation keys 3 reached the function that prevents that bearing pin 2 from rotating.
Claims (1)
1. bearing pin anti-rotation device is characterized in that: mill out two keyways (1) in bearing pin (2) bottom outer wall, two keyways (1) axis of bearing pin (2) relatively are symmetrically distributed, and an antirotation keys (3) is equipped with in each keyway (1) lining; Sleeve (5) inwall in bearing pin (2) outside in axial direction mills out two and runs through the axial slideway keyway (4) of entire sleeve (5), and these two slideway keyways (4) axis of bearing pin sleeve (5) relatively are symmetrically distributed; Antirotation keys (3) goes up at the slideway keyway (4) of sleeve (5) and is free to slide along the slideway keyway; After antirotation keys (3) is put into keyway (1), sleeve (5) is screwed on the subsides ring (6) of turntable hinge ear with bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920010219U CN201390610Y (en) | 2009-01-15 | 2009-01-15 | Pin shaft anti-rotating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920010219U CN201390610Y (en) | 2009-01-15 | 2009-01-15 | Pin shaft anti-rotating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201390610Y true CN201390610Y (en) | 2010-01-27 |
Family
ID=41597432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920010219U Expired - Fee Related CN201390610Y (en) | 2009-01-15 | 2009-01-15 | Pin shaft anti-rotating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201390610Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112977721A (en) * | 2019-12-17 | 2021-06-18 | 中国海洋石油集团有限公司 | Simple single-point mooring main bearing with locking function |
-
2009
- 2009-01-15 CN CN200920010219U patent/CN201390610Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112977721A (en) * | 2019-12-17 | 2021-06-18 | 中国海洋石油集团有限公司 | Simple single-point mooring main bearing with locking function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100127 Termination date: 20110115 |