CN203285680U - Centrifugal reverse braking device - Google Patents
Centrifugal reverse braking device Download PDFInfo
- Publication number
- CN203285680U CN203285680U CN2013202683916U CN201320268391U CN203285680U CN 203285680 U CN203285680 U CN 203285680U CN 2013202683916 U CN2013202683916 U CN 2013202683916U CN 201320268391 U CN201320268391 U CN 201320268391U CN 203285680 U CN203285680 U CN 203285680U
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- brake
- ratchet
- bearing support
- belt pulley
- braking device
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- Expired - Fee Related
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Abstract
A centrifugal reverse braking device solves the problem of high possibility of abrasion and unreliability in braking of brake components of the conventional screw pump ground driving device. The centrifugal reverse braking device comprises a reduction gearbox body, wherein a bearing support is arranged on the side surface of the reduction gearbox body; an input shaft is mounted in the bearing support; a large belt pulley is mounted on the input shaft. The centrifugal reverse braking device is characterized in that a brake housing is mounted on the reduction gearbox body; a brake body is mounted on the bearing support and comprises a circular ring and cantilevers; brake blocks are mounted among the cantilevers of the brake body; friction blocks corresponding to the brake housing are mounted on the outer sides of the brake blocks; a ratchet wheel is mounted on the brake body; a ratchet pawl matched with the ratchet wheel is mounted on the large belt pulley. The centrifugal reverse braking device has the advantages that the brake body and the brake blocks don't rotate when in normal operation so as to ensure effectiveness and reliability in braking; the instant brake force is large but dead lock is avoided, and the reverse twisting moment of a polished rod is completely automatically released; the safety of personnel and equipment is ensured to the maximum extent.
Description
Technical field
The utility model belongs to a kind of braking device, particularly a kind of centrifugal reverse rotating brake device for screw pump ground driving device.
Background technique
Screw pump ground driving device is after shutdown, and polished rod can produce high speed reverse rotation because of the oil hydraulic motor effect of the torsional-energy that stores in sucker rod and screw pump,, if can not effectively control rapidly, bring danger can for equipment and operator.So require surface drive can effectively control the polished rod counter-rotating, and want to discharge the torque force that exists in sucker rod.Existing screw pump ground driving device generally has two kinds of devices to realize above-mentioned purpose: a kind of is to adopt the mechanical type ratchet one-way clutch and install brake additional to bring the purpose that realizes braking and release.This device brake strap easily weares and teares, and need to unload manually the polished rod moment of torsion, brakes safe and reliablely not, has very large potential safety hazard.Another kind is to take oil hydraulic pump, caliper disc hydraulic pressure installation to brake, and drives the oil hydraulic pump running when it guarantees to reverse with mono-directional overrun clutch.Clutch in this device and oil hydraulic pump easily lost efficacy because of wearing and tearing, caused brake failure.
Summary of the invention
The technical problems to be solved in the utility model is, overcome the brake member that existing screw pump ground driving device exists and easily wear and tear, brake insecure problem, provide that a kind of brake member is not easy to wear, Self-tipping moment of torsion, the reliable centrifugal reverse rotating brake device of brake safe.
The utility model has a deceleration box, side at deceleration box is equipped with bearing support, input shaft is installed in bearing support, big belt pulley is installed on input shaft, its special way is, the braking shell is installed on deceleration box, brake body is installed on bearing support, described brake body consists of annulus and cantilever, between the cantilever of brake body, brake slipper is installed, the outside of brake slipper is equipped with the wearing piece corresponding with braking shell, and ratchet also is installed on brake body, and the ratchet that matches with ratchet is installed on big belt pulley.
The brake slipper Returnning spring also is installed between brake body and brake slipper, avoids brake slipper locked with the braking shell.
Stop screw also is installed on big belt pulley, between stop screw and ratchet, pawl restoring spring is installed, reliable to guarantee ratchet and click-fit.
The utility model has the advantage of:
1, brake body, brake slipper do not rotate when running well, the validity and reliability while guaranteeing braking.
2, ratchet, ratchet non-contact clutch,, without wearing and tearing, effectively mesh rapidly during braking while guaranteeing to run well.
3, wearing piece adopts semimetal asbestos base material matter, and wear-resisting, high temperature resistant, fire prevention is safe and reliable.
4, instantaneous braking force is large, but can be not locked, fully automatically discharges the polished rod reverse torque.
5, braking force changes voluntarily with the speed speed of polished rod counter-rotating,, without manual operation, unloads fast and automatically the polished rod moment of torsion, has farthest guaranteed personnel and device security.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the B-B sectional view of Fig. 1;
Fig. 4 is the C section enlarged view of Fig. 1.
Embodiment
as shown in drawings, the utility model has a deceleration box 1, in the side of deceleration box 1, bearing support 3 is installed, and by bearing, input shaft 14 is installed in bearing support 3, and input shaft 14 is connected with hollow spindle by gear, and hollow spindle is connected with polished rod, big belt pulley 7 is installed on input shaft 14, power passes to input shaft 14 by big belt pulley 7, and input shaft 14 is by the rotation of gear driven hollow spindle, braking shell 4 is installed on deceleration box 1, braking shell 4 is disc, and described braking shell 4 and bearing support 3 use bolts 2 are fixed on deceleration box 1, brake body 11 is installed on bearing support 3, brake body 11 is arranged on bearing support 3 by bearing 12, described brake body 11 consists of an annulus and four outwardly directed cantilevers, the quantity of cantilever is not limited to four, can determine according to actual needs, cantilever is in minute settings such as the outside of annulus, brake slipper 10 is installed in the space between the cantilever of brake body 11, brake slipper 10 is the strip shape body with certain radian, the shape in the space between the cantilever of its shape and brake body 11 is identical, but size is less than the space between the cantilever of brake body 11, can move radially between brake body 11 and braking shell 4, between brake body 11 and brake slipper 10, brake slipper Returnning spring 8 also is installed, brake slipper Returnning spring 8 is extension springs, and it draws brake slipper 10Xiang center, avoids brake slipper 10 locked with braking shell 4, the wearing piece corresponding with braking shell 49 is installed in the outside of brake slipper 10, and wearing piece 9 is riveted on brake slipper 10, and wearing piece 9 adopts semimetal asbestos base material matter to make, wear-resisting to improve, high temperature resistant and fireproof performance, ratchet 13 also is installed on brake body 11, is threaded between brake body 11 and ratchet 13, fixed with each other, by pawl axis 6, the ratchet 5 that matches with ratchet 13 is installed on big belt pulley 7, stop screw 15 also is installed on big belt pulley 7, between stop screw 15 and ratchet 5, pawl restoring spring 16 is installed, pawl restoring spring 16 is stage clips, it is close on ratchet 13 ratchet 5, to guarantee ratchet 13, with ratchet 5, coordinates reliably.
when polished rod, hollow spindle and big belt pulley 7 forward, ratchet 5 is separated with ratchet 13 under the effect of centrifugal force, and ratchet 5 does not mesh with the ratchet on ratchet 13, and ratchet 13 does not rotate, and brake body 11 and brake slipper 10 do not rotate yet, and braking device is not worked, when polished rod reverses, the counter-rotating of drive hollow spindle, hollow spindle drives big belt pulley 7 counter-rotatings by input shaft 14, at this moment, the ratchet 5 that is arranged on big belt pulley 7 is meshed with the ratchet on ratchet 13, ratchet 13 is with big belt pulley 7 counter-rotatings, the brake body 11 that is fixed together with ratchet 13 reverses thereupon, the pulling force that brake slipper 10 overcomes brake slipper Returnning spring 8 under the action of the centrifugal outwards gets rid of, make the wearing piece 9 in brake slipper 10 outsides produce friction with braking shell 4, big belt pulley 7 is produced braking action, after big belt pulley 7 is braked, speed reversal reduces, thereby reduce the speed reversal of hollow spindle and polished rod, when the speed reversal of big belt pulley 7 is reduced to a certain degree, brake slipper 10 resets under the effect of spring 8, break away from braking state, then, big belt pulley 7 continues counter-rotating, and brake slipper 10 repeats braking, then resets, then brakes, until again without reverse torque.
Claims (3)
1. centrifugal reverse rotating brake device, it has a deceleration box, side at deceleration box is equipped with bearing support, input shaft is installed in bearing support, big belt pulley is installed on input shaft, it is characterized in that, the braking shell is installed on deceleration box, brake body is installed on bearing support, described brake body consists of annulus and cantilever, between the cantilever of brake body, brake slipper is installed, the outside of brake slipper is equipped with the wearing piece corresponding with braking shell, ratchet also is installed on brake body, the ratchet that matches with ratchet is installed on big belt pulley.
2. centrifugal reverse rotating brake device according to claim 1, is characterized in that, the brake slipper Returnning spring also is installed between brake body and brake slipper.
3. centrifugal reverse rotating brake device according to claim 1, is characterized in that, stop screw also is installed on big belt pulley, between stop screw and ratchet, pawl restoring spring is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202683916U CN203285680U (en) | 2013-05-17 | 2013-05-17 | Centrifugal reverse braking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202683916U CN203285680U (en) | 2013-05-17 | 2013-05-17 | Centrifugal reverse braking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203285680U true CN203285680U (en) | 2013-11-13 |
Family
ID=49542046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202683916U Expired - Fee Related CN203285680U (en) | 2013-05-17 | 2013-05-17 | Centrifugal reverse braking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203285680U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106065872A (en) * | 2016-08-12 | 2016-11-02 | 华能湖南岳阳发电有限责任公司 | One power plant blower fan anti-reverse mechanism and method thereof |
| CN106968643A (en) * | 2017-05-19 | 2017-07-21 | 大庆市晟威机械制造有限公司 | A kind of screw pump direct-driving device of utilization hydraulic braking polished rod |
| CN107477113A (en) * | 2017-09-20 | 2017-12-15 | 盘锦中舜石油机械有限公司 | A kind of double-brake surface drive decelerator |
-
2013
- 2013-05-17 CN CN2013202683916U patent/CN203285680U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106065872A (en) * | 2016-08-12 | 2016-11-02 | 华能湖南岳阳发电有限责任公司 | One power plant blower fan anti-reverse mechanism and method thereof |
| CN106968643A (en) * | 2017-05-19 | 2017-07-21 | 大庆市晟威机械制造有限公司 | A kind of screw pump direct-driving device of utilization hydraulic braking polished rod |
| CN107477113A (en) * | 2017-09-20 | 2017-12-15 | 盘锦中舜石油机械有限公司 | A kind of double-brake surface drive decelerator |
| CN107477113B (en) * | 2017-09-20 | 2023-08-18 | 盘锦中舜石油机械有限公司 | Dual-brake ground driving device speed reducer |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131113 Termination date: 20200517 |