CN203239790U - Adjustable-torque overload protection device - Google Patents
Adjustable-torque overload protection device Download PDFInfo
- Publication number
- CN203239790U CN203239790U CN 201320204018 CN201320204018U CN203239790U CN 203239790 U CN203239790 U CN 203239790U CN 201320204018 CN201320204018 CN 201320204018 CN 201320204018 U CN201320204018 U CN 201320204018U CN 203239790 U CN203239790 U CN 203239790U
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- hydraulic pressure
- overload protection
- circular cylinder
- annular
- friction plate
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Abstract
The utility model relates to an overload protection device used for an underground coal mine coal plough and a conveyor, in particular to an adjustable-torque overload protection device of a driving system. According to an existing overload protection device used for the underground coal mine coal plough and the conveyor, a spring assembly is usually adopted for exerting pressure on friction plates, and after set, transmission torque can not be adjusted. According to the technical scheme, the adjustable-torque overload protection device comprises an overload protection mechanism and a hydraulic pressure exerting device. The overload protection mechanism is composed of a shaft sleeve, an inner ring gear, friction plates and a base, an annular plunger and an annular cylinder body of the hydraulic pressure exerting device are matched to form a plunger cylinder structure, a friction plate set is installed in a cavity formed by the hydraulic pressure exerting device, the inner ring gear of the overload protection mechanism and the base of the overload protection mechanism in a linkage mode, and the annular plunger presses the friction plate set in an abutting-against mode through a belleville spring and a pressure plate. Through adjustment of liquid injecting pressure of the hydraulic pressure exerting device, the purposes of adjusting pressure among the friction plates and correcting the transmission torque are achieved, and the problems that an existing device is difficult to repair and the transmission torque can not be adjusted are solved.
Description
Technical field
The utility model relates to a kind of overload protection arrangement for colliery underground coal plough and conveyor, relates in particular to a kind of moment of torsion adjustable overloading protective gear for drive system.
Background technique
Existing overload protection arrangement for colliery underground coal plough and conveyor adopts spring assembly that friction plate is applied rated pressure more, and transmitting torque can not be adjusted after setting, and friction plate causes wearing and tearing owing to slipping protection, and transmitting torque is descended.When transmitting torque reduces, need again to demarcate returning factory after the dismounting of friction limit square device.The commutation of coal planer planning chain drive system starts frequent, and impulsive load is large, causes friction disc wear very fast, for improving Security, the reliability of equipment, improves the manufacturing efficiency of thin seam mining, and the problems referred to above are in the urgent need to address.
Summary of the invention
The purpose of this utility model is to provide a kind of moment of torsion adjustable overloading protective gear, can not on-the-spot adjustment after poor reliability, maintenance difficult and the transmitting torque that exists with the overload protection arrangement that overcomes existing colliery underground coal plough and conveyor changes etc. problem.
The technical solution adopted in the utility model is: comprise overload protecting mechanism, overload protecting mechanism is comprised of axle sleeve, ring gear, friction plate group and base; Ring gear and base sheath are contained on the axle sleeve, and the friction plate assembling fits in the cavity of axle sleeve, ring gear and base composition, and the friction plate that is connected with internal gear ring key in the friction plate group and the friction plate interval that is connected with shaft sleeve key arrange;
Also comprise the hydraulic pressure device for exerting, the hydraulic pressure device for exerting is comprised of unidirectional fluid injection joint, circular cylinder, annular plunger, belleville spring, platen, pressure gauge; The circular cylinder of hydraulic pressure device for exerting is connected and fixed by ring gear, the base of bolt and overload protecting mechanism; Circular cylinder is provided with liquid filling hole and annular hydraulic pressure cavity, and liquid filling hole is communicated with annular hydraulic pressure cavity, and the circular column stopper rod of annular plunger one end cooperates with circular cylinder annular hydraulic pressure cavity, consists of the plunger case structure; The uniform a plurality of tapped holes in circular cylinder surface, by tight fixed bolt by tapped hole to annular plunger mechanical caging; By Screw assembly unidirectional fluid injection joint is arranged in the liquid filling hole, pressure gauge is housed on the circular cylinder; The lower outer rim top of belleville spring is pressed in circular column beyond the Great Wall, and the upper inner edge top of belleville spring is pressed on the platen platen pressing friction sheet group.
Further, described circular cylinder and base all by bearing assemble on axle sleeve.
The advantage that the utlity model has is: the Security and the reliability that have improved equipment, long service life can accurately be adjusted transmitting torque according to the equipment working condition demand, after transmitting torque changes, can adjust rapidly the pressure between friction plate, transmitting torque is proofreaied and correct.
Below in conjunction with the drawings and specific embodiments the technical solution of the utility model is elaborated.
Description of drawings:
Fig. 1 represents the structural representation of moment of torsion adjustable overloading protective gear;
Fig. 2 represents the sectional view of circular cylinder;
Fig. 3 represents the sectional view of annular piston.
Among the figure: 1, axle sleeve, 2, ring gear, 3, unidirectional fluid injection joint, 4, circular cylinder, 5, bolt, 6, annular plunger, 7, belleville spring, 8, platen, 9, the friction plate group, 10, tight fixed bolt, 11, pressure gauge, 12, base.
Embodiment
Embodiment 1
Such as Fig. 1～shown in Figure 3, the utility model comprises overload protecting mechanism, and overload protecting mechanism is comprised of axle sleeve 1, ring gear 2, friction plate group 9 and base 12; Ring gear 2 is sleeved on the axle sleeve 1, friction plate group 9 is assemblied in the seal chamber of axle sleeve 1, ring gear 2, circular cylinder 4 and base 12 compositions, in the friction plate group, the friction plate that is connected with ring gear 2 by spline reaches the friction plate interval setting that is connected with axle sleeve 1 by spline;
The utility model also comprises the hydraulic pressure device for exerting, and the hydraulic pressure device for exerting is comprised of unidirectional fluid injection joint 3, circular cylinder 4, annular plunger 6, belleville spring 7, platen 8, pressure gauge 11; The circular cylinder 4 of hydraulic pressure device for exerting is fixed into one by ring gear 2 and the base 12 of bolt 5 and overload protecting mechanism;
Working principle of the present utility model is: annotated such as emulsified liquid in the annular hydraulic pressure cavity of hydraulic pressure device for exerting by unidirectional fluid injection joint 3; promoting annular plunger 6 moves axially to the right; compression belleville spring 7; then pressure is passed to friction plate group 9 by platen 8; namely regulate the liquid filling pressure of hydraulic pressure device for exerting; frictional force between friction plate is changed, reach the purpose of the transmitting torque of regulating overload protection arrangement.By the energy storage characteristic of belleville spring, mechanical energy is converted into energy of deformation stores, when friction plate generation mild wear, belleville spring 7 discharges mechanical energy, guarantees to have enough pressure between friction plate.
Be installed in the pressure of the annular hydraulic pressure cavity of the pressure gauge 11 demonstrations inside on the circular cylinder 4, when transmitting torque reaches requirement, carry out mechanical caging by 10 pairs of annular plungers 6 of the tight fixed bolt on the circular cylinder 4, prevent because the phenomenons such as device leakage cause diminishing of transmitting torque.
When pressure drop occurring in the circular cylinder 4 annular hydraulic pressure cavity, in time fluid injection is adjusted, and remains in the confidence band to guarantee transmitting torque, realizes that the moment of torsion of overload protection arrangement is adjustable.
Inject Lubricants in the cavity by the sealing that forms to axle sleeve 1, ring gear 2, circular cylinder 4 and base 12, reduced the wearing and tearing of friction plate, avoid simultaneously occurring between friction plate in the process of skidding spark, the Security that has improved equipment.
More than the detailed description technical solutions of the utility model carried out by preferred embodiment be schematic but not pro forma restriction.Those skilled in the art is on the basis of reading the utility model specification, can make amendment to the technological scheme that embodiment puts down in writing, perhaps part technical characteristics wherein is equal to replacement, and these modifications or replacement do not make the essence of appropriate technical solution break away from the scope of the utility model embodiment technological scheme.
Claims (2)
1. a moment of torsion adjustable overloading protective gear comprises overload protecting mechanism, and overload protecting mechanism is comprised of axle sleeve (1), ring gear (2), friction plate group (9) and base (12); Ring gear (2) and base (12) are sleeved on the axle sleeve (1), friction plate group (9) is assemblied in the cavity of axle sleeve (1), ring gear (2) and base (12) composition, and the friction plate that is connected with internal gear ring key in the friction plate group and the friction plate interval that is connected with shaft sleeve key arrange;
It is characterized in that: also comprise the hydraulic pressure device for exerting, the hydraulic pressure device for exerting is comprised of unidirectional fluid injection joint (3), circular cylinder (4), annular plunger (6), belleville spring (7), platen (8), pressure gauge (11); The circular cylinder of hydraulic pressure device for exerting (4) is connected and fixed by ring gear (2), the base (12) of bolt (5) with overload protecting mechanism; Circular cylinder (4) is provided with liquid filling hole and annular hydraulic pressure cavity, and liquid filling hole is communicated with annular hydraulic pressure cavity, and the circular column stopper rod of annular plunger (6) one ends cooperates with the annular hydraulic pressure cavity of circular cylinder (4), consists of the plunger case structure; The uniform a plurality of tapped holes in circular cylinder (4) surface, by tight fixed bolt (10) by tapped hole to annular plunger (6) mechanical caging; By Screw assembly unidirectional fluid injection joint (3) is arranged in the liquid filling hole, pressure gauge (11) is housed on the circular cylinder (4); The lower outer rim top of belleville spring (7) is pressed on the annular plunger (6), and the upper inner edge top of belleville spring (7) is pressed on the platen (8) platen (8) pressing friction sheet group (9).
2. a kind of moment of torsion adjustable overloading protective gear according to claim 1 is characterized in that: described circular cylinder (4) and base (12) all by bearing assemble on axle sleeve (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320204018 CN203239790U (en) | 2013-04-10 | 2013-04-10 | Adjustable-torque overload protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320204018 CN203239790U (en) | 2013-04-10 | 2013-04-10 | Adjustable-torque overload protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203239790U true CN203239790U (en) | 2013-10-16 |
Family
ID=49317093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320204018 Withdrawn - After Issue CN203239790U (en) | 2013-04-10 | 2013-04-10 | Adjustable-torque overload protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203239790U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291774A (en) * | 2013-04-10 | 2013-09-11 | 中煤张家口煤矿机械有限责任公司 | Torque-adjustable overload protection device |
| CN107956850A (en) * | 2017-12-27 | 2018-04-24 | 青岛核工机械有限公司 | A kind of adjustable antioverloading gear reducer |
| CN110905934A (en) * | 2019-12-09 | 2020-03-24 | 怀化学院 | Torque limiter and semi-direct-drive fan |
| CN110939664A (en) * | 2019-12-09 | 2020-03-31 | 怀化学院 | Hydraulic and disc spring combined type torque limiter and semi-direct-drive fan |
| US10738836B2 (en) | 2016-11-30 | 2020-08-11 | Saint-Gobain Performance Plastics Rencol Limited | Adjustable torque assembly |
-
2013
- 2013-04-10 CN CN 201320204018 patent/CN203239790U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291774A (en) * | 2013-04-10 | 2013-09-11 | 中煤张家口煤矿机械有限责任公司 | Torque-adjustable overload protection device |
| CN103291774B (en) * | 2013-04-10 | 2016-01-06 | 中煤张家口煤矿机械有限责任公司 | A kind of Torque-adjustable overload protection device |
| US10738836B2 (en) | 2016-11-30 | 2020-08-11 | Saint-Gobain Performance Plastics Rencol Limited | Adjustable torque assembly |
| CN107956850A (en) * | 2017-12-27 | 2018-04-24 | 青岛核工机械有限公司 | A kind of adjustable antioverloading gear reducer |
| CN110905934A (en) * | 2019-12-09 | 2020-03-24 | 怀化学院 | Torque limiter and semi-direct-drive fan |
| CN110939664A (en) * | 2019-12-09 | 2020-03-31 | 怀化学院 | Hydraulic and disc spring combined type torque limiter and semi-direct-drive fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131016 Effective date of abandoning: 20160106 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |