CN203294991U - Coupling structure - Google Patents
Coupling structure Download PDFInfo
- Publication number
- CN203294991U CN203294991U CN2013202930237U CN201320293023U CN203294991U CN 203294991 U CN203294991 U CN 203294991U CN 2013202930237 U CN2013202930237 U CN 2013202930237U CN 201320293023 U CN201320293023 U CN 201320293023U CN 203294991 U CN203294991 U CN 203294991U
- Authority
- CN
- China
- Prior art keywords
- bearing
- axle
- mandrel
- end cap
- pressure pad
- 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 - Lifetime
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Abstract
A coupling structure comprises a mandrel (3) which is a through shaft. Bearings (7) are installed at one end of the mandrel (3), a guide wheel (1) is installed on the outer portion of each bearing (7), an end cover (2) is installed on the upper portion of each bearing (7), the other end of the mandrel (3) is provided with external threads, a pressure pad (10) is installed on the mandrel (3) through a locking nut (8), and the mandrel (3) is fixed to an installation plate through an eccentric bushing (11), the locking nut (8) and the pressure pad (10). The coupling structure is simple and has dust-proof and rust-proof performance. The mode that the threads are machined at the end of the mandrel is used for replacing the mode that bolts are used for fixation, and therefore the bolts are saved. Furthermore, the diameter of the threads can be increased according to actual requirements so as to increase strength, and therefore the accident that idler wheels fall due to bolt fracture is avoided.
Description
Technical field
The utility model relates to the tooth bar clutch in various soaring device, the especially building hoist on a kind of construction machinery and equipment.
Background technology
at present, in the building hoist of SC series, the behind of wheel and rack all needs to install one or more sets backgears, be commonly called as the tooth bar clutch, but most designs is all to be connected with logical axle by bolt at present, by eccentric bushing, adjust the distance at roller and the tooth bar back side, restriction due to design size, the gear that adopts also can only adopt the screw rod of M24 fastening to the full extent, but, because the impulse force that the wheel and rack engaged transmission produces is powerful, tend to cause bolt abruption, cause roller from falling from high altitude, bring great potential safety hazard for on-the-spot personnel.
Summary of the invention
The purpose of this utility model is in order to overcome the deficiency of old-fashioned building hoist clutch, reduces because of building hoist because the impact in operational process causes the clutch bolt abruption probability that causes clutch to come off.
The technical scheme that its technical matters that solves the utility model adopts is:
A kind of clutch structure, comprise axle, described axle is axis, an end in described axle is installed bearing, at the outside guide wheel of installing of bearing, on the top of bearing, end cap is installed respectively, the other end of described axle is provided with outside thread, by jam nut, pressure pad is installed on described axle, by eccentric bushing, jam nut, pressure pad, axle is fixed on adapter plate.
The through type lubricating cup is set on end cap described in the utility model, the hole back-up ring is set between end cap and bearing, the top of end cap is provided with circlip for shaft.But the bearing by lubricating cup way roller the north adds grease.
The end that axle described in the utility model is installed end cap is provided with interior hexagonal groove, and described jam nut one end arranges packing ring.
The beneficial effects of the utility model:
Simple in structure, dustproof antirust, adopt the axle head machining screw and do not adopt the fixing mode of bolt, save bolt, and can strengthen according to actual needs diameter of thread, to gain in strength, avoided freeing because bolt fracture causes the accident that roller falls.
The accompanying drawing explanation
Fig. 1 is mounting structure schematic diagram of the present utility model.
Fig. 2 is axle schematic diagram of the present utility model.
Fig. 3 is dustproof gland schematic diagram of the present utility model.
Fig. 4 is roller schematic diagram of the present utility model.
1. guide wheel 2. end cap 3. axle 4. circlip for shaft 5. through type lubricating cup 6. holes back-up ring 7. bearing 8. jam nut 9. packing ring 10. pressure pad 11. eccentric bushings in Fig. 1.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
As shown in the figure, a kind of clutch structure, axle 3 is set, axle 3 is processed as to the axis structure, bearing 7 is installed on axle 3, at the outer installation guide wheel 1 of bearing 7, end cap 2 is installed on top at bearing 7, axle 3 one ends are processed with outside thread, by jam nut 8, gland 11, packing ring 10 are installed on to an end of axle 3, by eccentric bushing 11, jam nut 8, pressure pad 10, axle 3 are fixed on adapter plate.
On end cap 2 in the utility model, through type lubricating cup 5 is set, by lubricating cup 5, gives bearing 7 charging-up lubricant oils, hole back-up ring 6 is set between end cap 2 and bearing 7, the top of end cap 2 is provided with circlip for shaft 4.An end that is provided with from seal installation end lid 2 away from an end of end cap 2 between axle 3 and guide wheel 1 is provided with spring card slot, can end cap 2 be fixed on axle 3 by elastic circlip, the end face of axle 3 is provided with interior hexagonal recess, can use inner-hexagon spanner to rotate or stationary spindle.Jam nut 8 one ends arrange packing ring 9.
As shown in the figure, the guide wheel outside of Novel backrest wheel is smooth structure, and the inner one side of roller 2 has boss, can prevent the bearing end float misalignment, and the other end is provided with draw-in groove, can circlip be installed by draw-in groove, prevents the bearing play.
After the utility model Product Assembly is good, also need to coordinate installation with the driver plate of building hoist, after installing firmly, need to utilize eccentric bushing 11 to adjust the gap at guide pulley surface and the tooth bar back side, what eccentric sleeves adopted is the crescent special wrench, during the fastening lock jack panel, need to adopt the inner-hexagon spanner stationary spindle, drive axle 3 when preventing nut rotation and rotate.
Installation process of the present utility model is as follows:
A kind of Novel backrest wheel, comprise axle, described axle is the axis structure, on described roller shaft, bearing is installed, outside described bearing, roller is installed, roller shaft one end is provided with outside thread, by jam nut, pad, eccentric bushing, axle is fixed on adapter plate, by eccentric bushing, adjusts the gap at roller and the tooth bar back side; The axle other end is provided with draw-in groove, and the inner-hexagon spanner groove is fixed on end cap on axle by circlip, and bearing is exposed, by inner-hexagon spanner, rotates or stationary spindle, with fastening nut.
Claims (3)
1. clutch structure, it is characterized in that: comprise axle (3), described axle (3) is axis, an end in described axle (3) is installed bearing (7), respectively at the outside guide wheel (1) of installing of bearing (7), end cap (2) is installed on top at bearing (7), the other end of described axle (3) is provided with outside thread, by jam nut (8), pressure pad (10) is installed on to described axle (3) upper, by eccentric bushing (11), jam nut (8), pressure pad (10), axle (3) is fixed on adapter plate.
2. a kind of clutch structure according to claim 1, it is characterized in that: through type lubricating cup (5) is set on described end cap (2), hole back-up ring (6) is set between end cap (2) and bearing (7), and the top of end cap (2) is provided with circlip for shaft (4).
3. a kind of clutch structure according to claim 1 and 2 is characterized in that: the end that described axle (3) is installed end cap (2) is provided with interior hexagonal groove, and described jam nut (8) one ends arrange packing ring (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202930237U CN203294991U (en) | 2013-05-27 | 2013-05-27 | Coupling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202930237U CN203294991U (en) | 2013-05-27 | 2013-05-27 | Coupling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203294991U true CN203294991U (en) | 2013-11-20 |
Family
ID=49571022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202930237U Expired - Lifetime CN203294991U (en) | 2013-05-27 | 2013-05-27 | Coupling structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203294991U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106429718A (en) * | 2016-08-24 | 2017-02-22 | 无锡科通工程机械制造有限公司 | Back gear mechanism used for lift |
-
2013
- 2013-05-27 CN CN2013202930237U patent/CN203294991U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106429718A (en) * | 2016-08-24 | 2017-02-22 | 无锡科通工程机械制造有限公司 | Back gear mechanism used for lift |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131120 |