CN205151633U - Free fall is parking brake for hoist engine - Google Patents
Free fall is parking brake for hoist engine Download PDFInfo
- Publication number
- CN205151633U CN205151633U CN201520810367.XU CN201520810367U CN205151633U CN 205151633 U CN205151633 U CN 205151633U CN 201520810367 U CN201520810367 U CN 201520810367U CN 205151633 U CN205151633 U CN 205151633U
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- CN
- China
- Prior art keywords
- parking brake
- piston
- spline housing
- outward flange
- parking
- 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 relates to a free fall is parking brake for hoist engine, its innovation point lies in: including parking brake spline housing, parking brake cylinder body, parking brake outward flange, parking brake inner flange, parking brake end cover, parking brake piston, parking brake inner friction piece and parking brake external friction plate, the parking brake spline housing is the sleeve pipe that an internal surface has spline struvture, and sheathed tube middle part and end are provided with inner flange bearing section and outward flange bearing section respectively, the inner flange bearing section of parking brake spline housing has the parking brake inner flange through the flange structural connection, and outward flange bearing section has the parking braking outward flange through the bearing supporting. The utility model discloses the advantage does: the utility model provides a free fall is parking brake for hoist engine adopts convenient to detach's structure, and is rationally distributed, and the supporting is stable, reliable.
Description
Technical field
The utility model relates to a kind of drg, particularly a kind of free-falling body winch Parking Brake.
Background technology
Winch drives reel, winding cords to complete the device of traction work by manpower or mechanical power, vertical-lift, level or inclination can drag and draw weight.It can be widely used in building, hydraulic engineering, forestry, mine, harbour etc. material lifting, flat to drag or weight operating mode is drawn on slope.
Along with the development need of society, the operating efficiency for unit in charge of construction requires also more and more higher, and the winch can putting hook is fast thereupon raw.In current fast releasing hoister machine reductor, due to its structural limitations, output torque is low, and under condition knocked off soon by empty hook, cannot realize band and carry braking, there is larger potential safety hazard.
Also occur at present a kind of can a winch with carrying braking, as number of patent application 201120455525.6 free fall type winch, it is equipped with drg I and drg II.The band that drg I is used as when winch normally runs carries braking, and drg II then for putting hook fast under free falling body state, is increased work efficiency.But it still exists certain defect: adopt one-piece construction in Brake for vehicle I, later stage maintenance, maintenance inconvenience, need whole drg I to dismantle just can carry out, impact normally runs.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of structure free-falling body winch Parking Brake simple, easy to maintenance.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of free-falling body winch Parking Brake, and its innovative point is: comprise Parking Brake spline housing, Parking Brake cylinder body, Parking Brake outward flange, Parking Brake inside flange, Parking Brake end cap, Parking Brake piston, Parking Brake inner attrition piece and Parking Brake outside friction disc; Parking Brake spline housing is the sleeve pipe that an inside face has spline structure, and the middle part of sleeve pipe and end are respectively arranged with inside flange supporting section and outward flange supporting section; The inside flange supporting section of Parking Brake spline housing is connected with Parking Brake inside flange by flange arrangement, and outward flange supporting section is supported with braking during standstill outward flange by bearing; Parking Brake cylinder body is a stepped tube-in-tube structure, and it is coaxially arranged by major diameter circular cylinder A and minor diameter circular cylinder B and forms; The two ends of Parking Brake cylinder body connect Parking Brake end cap and Parking Brake outward flange respectively by bolt; Parking Brake piston is a stepped sleeves structure being built in Parking Brake cylinder body, and it arranges an annular protrusion by annular piston body outer surface and forms; The annular piston body outer circumference surface of Parking Brake piston, annular protrusion inner side end and the circular cylinder A inner peripheral surface of Parking Brake cylinder body, the inner side end of circular cylinder B form the braking during standstill epitrochoidal chamber that is held hydraulic oil; The end of Parking Brake piston is drilled with some well-distributed spring eyes, and each spring eye is built-in with the parking piston reset spring that outer end props up Parking Brake end cap; Parking Brake inner attrition piece and Parking Brake outside friction disc is provided with in the toroidal cavity formed between Parking Brake cylinder body and Parking Brake spline housing, described Parking Brake outside friction disc is connected with Parking Brake inboard wall of cylinder block by spline structure, Parking Brake inner attrition piece is connected with Parking Brake spline housing by spline structure, and the front end of Parking Brake piston connects with Parking Brake outside friction disc.
Preferably, described major diameter circular cylinder A inwall is provided with annular seal groove A, minor diameter circular cylinder B inwall is provided with annular seal groove B, in this annular seal groove A and annular seal groove B, is inlaid with star seal ring.
The utility model advantage is: the free-falling body winch Parking Brake in the utility model adopts easy-to-dismount structure, and rationally distributed; Its Parking Brake spline housing and Parking Brake inside flange are bolted, and then arrange bearing between Parking Brake spline housing and Parking Brake outward flange, supporting stabilizer, reliable.Major diameter circular cylinder A, the minor diameter circular cylinder B inwall of Parking Brake all arrange annular seal groove, arrange star seal ring, good sealing effect, not easily leak in groove.
Accompanying drawing explanation
Fig. 1 is the utility model free-falling body winch vehicle stop brake mechanism schematic diagram.
Fig. 2 is the utility model Parking Brake spline housing structural representation.
Detailed description of the invention
As shown in Figure 1, Parking Brake spline housing 251, Parking Brake cylinder body 252, Parking Brake outward flange 253, Parking Brake inside flange 254, Parking Brake end cap 255, Parking Brake piston 256, Parking Brake inner attrition piece 257 and Parking Brake outside friction disc 258 is comprised.
As shown in Figure 2, Parking Brake spline housing 251 is the sleeve pipe that an inside face has spline structure, and the middle part of sleeve pipe and end are respectively arranged with inside flange supporting section 2511 and outward flange supporting section 2512; The inside flange supporting section 2511 of Parking Brake spline housing 251 is connected with Parking Brake inside flange 254 by flange arrangement, and outward flange supporting section 2512 is supported with braking during standstill outward flange 253 by bearing.
Parking Brake cylinder body 252 is a stepped tube-in-tube structure, and it is coaxially arranged by major diameter circular cylinder A and minor diameter circular cylinder B and forms; The two ends of Parking Brake cylinder body 252 connect Parking Brake end cap 255 and Parking Brake outward flange 253 respectively by bolt.
As the utility model embodiment more specifically: be provided with annular seal groove A2521 on major diameter circular cylinder A inwall, minor diameter circular cylinder B inwall is provided with annular seal groove B2522, in this annular seal groove A2521 and annular seal groove B2522, is inlaid with star seal ring.
Parking Brake piston 256 is a stepped sleeves structure being built in Parking Brake cylinder body 252, and it arranges an annular protrusion by annular piston body outer surface and forms; The annular piston body outer circumference surface of Parking Brake piston 256, annular protrusion inner side end and the circular cylinder A inner peripheral surface of Parking Brake cylinder body, the inner side end of circular cylinder B form the braking during standstill epitrochoidal chamber that is held hydraulic oil.
The end of Parking Brake piston 256 is drilled with some well-distributed spring eyes, and each spring eye is built-in with the parking piston reset spring 259 that outer end props up Parking Brake end cap; Parking Brake inner attrition piece 257 and Parking Brake outside friction disc 258 is provided with in the toroidal cavity formed between Parking Brake cylinder body 252 and Parking Brake spline housing 251, Parking Brake outside friction disc 258 is connected with Parking Brake cylinder body 252 inwall by spline structure, Parking Brake inner attrition piece 257 is connected with Parking Brake spline housing 251 by spline structure, and the front end of Parking Brake piston 256 connects with Parking Brake outside friction disc 258.
Principle of work:
Reel normal working:
Injection liquid force feed in braking during standstill epitrochoidal chamber, the deformation power of Parking Brake piston overpowers parking retracing spring, pushes open to the left by Parking Brake piston, makes Parking Brake outside friction disc leave Parking Brake inner attrition piece; Parking Brake spline housing freely rotates, and then torque transfer is realized the work of reel to reel.
Parked state:
Parking Brake piston moves to the right under the effect of parking retracing spring, makes Parking Brake outside friction disc be close to Parking Brake inner attrition piece; And then locking Parking Brake spline housing, and then the rotation of control inputs axle, realize the braking of reel.
Claims (2)
1. a free-falling body winch Parking Brake, is characterized in that: comprise Parking Brake spline housing, Parking Brake cylinder body, Parking Brake outward flange, Parking Brake inside flange, Parking Brake end cap, Parking Brake piston, Parking Brake inner attrition piece and Parking Brake outside friction disc;
Parking Brake spline housing is the sleeve pipe that an inside face has spline structure, and the middle part of sleeve pipe and end are respectively arranged with inside flange supporting section and outward flange supporting section; The inside flange supporting section of Parking Brake spline housing is connected with Parking Brake inside flange by flange arrangement, and outward flange supporting section is supported with braking during standstill outward flange by bearing;
Parking Brake cylinder body is a stepped tube-in-tube structure, and it is coaxially arranged by major diameter circular cylinder A and minor diameter circular cylinder B and forms; The two ends of Parking Brake cylinder body connect Parking Brake end cap and Parking Brake outward flange respectively by bolt;
Parking Brake piston is a stepped sleeves structure being built in Parking Brake cylinder body, and it arranges an annular protrusion by annular piston body outer surface and forms;
The annular piston body outer circumference surface of Parking Brake piston, annular protrusion inner side end and the circular cylinder A inner peripheral surface of Parking Brake cylinder body, the inner side end of circular cylinder B form the braking during standstill epitrochoidal chamber that is held hydraulic oil; The end of Parking Brake piston is drilled with some well-distributed spring eyes, and each spring eye is built-in with the parking piston reset spring that outer end props up Parking Brake end cap;
Parking Brake inner attrition piece and Parking Brake outside friction disc is provided with in the toroidal cavity formed between Parking Brake cylinder body and Parking Brake spline housing, described Parking Brake outside friction disc is connected with Parking Brake inboard wall of cylinder block by spline structure, Parking Brake inner attrition piece is connected with Parking Brake spline housing by spline structure, and the front end of Parking Brake piston connects with Parking Brake outside friction disc.
2. free-falling body winch Parking Brake according to claim 1, it is characterized in that: described major diameter circular cylinder A inwall is provided with annular seal groove A, minor diameter circular cylinder B inwall is provided with annular seal groove B, in this annular seal groove A and annular seal groove B, is inlaid with star seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520810367.XU CN205151633U (en) | 2015-10-20 | 2015-10-20 | Free fall is parking brake for hoist engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520810367.XU CN205151633U (en) | 2015-10-20 | 2015-10-20 | Free fall is parking brake for hoist engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205151633U true CN205151633U (en) | 2016-04-13 |
Family
ID=55687349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520810367.XU Expired - Fee Related CN205151633U (en) | 2015-10-20 | 2015-10-20 | Free fall is parking brake for hoist engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205151633U (en) |
-
2015
- 2015-10-20 CN CN201520810367.XU patent/CN205151633U/en not_active Expired - Fee Related
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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: 20160413 Termination date: 20161020 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |