CN203582383U - Automatic brake set for power-driven winches - Google Patents
Automatic brake set for power-driven winches Download PDFInfo
- Publication number
- CN203582383U CN203582383U CN201320720932.4U CN201320720932U CN203582383U CN 203582383 U CN203582383 U CN 203582383U CN 201320720932 U CN201320720932 U CN 201320720932U CN 203582383 U CN203582383 U CN 203582383U
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- CN
- China
- Prior art keywords
- brake
- gear
- nut
- transmission
- transmission shaft
- 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
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 39
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910052802 copper Inorganic materials 0.000 claims abstract description 25
- 239000010949 copper Substances 0.000 claims abstract description 25
- 238000009434 installation Methods 0.000 claims description 5
- 230000007774 longterm Effects 0.000 abstract 1
- 238000012856 packing Methods 0.000 description 7
- 238000010276 construction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- Braking Arrangements (AREA)
Abstract
The utility model discloses an automatic brake set for power-driven winches. The automatic brake set comprises a transmission gear mounted on a transmission shaft. Brake copper bushings are mounted in gaps between the ends of the transmission gear and the ends of the transmission shaft. A brake gear meshes with the transmission gear. A brake nut meshing with the transmission gear is mounted on the inner side of the brake copper bushing at one end of the transmission shaft. The edge of one end, close to the brake nut, of the brake gear is provided with a protrusion. A brake bolt with one end extending between the brake gear and the brake nut and matching with the protrusion is axially disposed on the brake nut. The automatic brake set has the advantages that braking is achieved by fitting of the protrusion with the brake nut, screwed axial surface contact of the brake gear is converted into radial point contact, the brake nut is never extruded, adhesion of the brake gear to the brake copper bushings and brake nut is avoided, engaging and disengaging for braking is smooth, and automatic braking is safe and reliable in long-term service in various conditions.
Description
Technical field
The utility model relates to a kind of dead-man's device, especially a kind of dead-man's device for motor-driven grinding mill.
Background technology
Motor-driven grinding mill is the construction equipment that sets up aerial ultra-high-tension power transmission line and lay cables underground, can carry out smoothly, easily lifting, the towages such as tower erection, wire erection at various complex conditions, be widely used in and in electric power, post and telecommunications line construction, organize vertical rod tower, motor-driven unwrapping wire, stringing, also can be at the place liftings such as building, harbour and traction weight, be applicable to field without electric field institute, easy to operate.In construction operation process, the performance of the dead-man's device of motor-driven grinding mill directly has influence on the safety of hoisting operation.
The dead-man's device of tradition motor-driven grinding mill comprises the transmission gear being arranged on transmission shaft, the gap installation shaft brake copper sheathing of transmission gear and transmission shaft, on transmission gear, be engaged with brake gear, chain brake gear and brake and add dish, between brake gear and chain brake gear and chain brake gear and brake add brake facing be all installed between dish, the brake copper sheathing inner side of transmission shaft one end is provided with the brake nut being engaged on transmission gear, between brake nut and brake gear, brake copper packing is installed.In recent years, in construction, repeatedly occur because of the motor-driven grinding mill dead-man's device weight falling accident causing that lost efficacy.By the analysis to many accidents and hoisting test repeatedly, find that former motor-driven grinding mill dead-man's device exists drawback, main manifestations is: after motor-driven grinding mill has born opposition (as hoisted in position or while grinding tail rope pulling force be greater than weight gravity), brake gear can push brake nut under the effect of screw thread, cause brake gear and brake copper packing and brake nut to be adhered, when lighter items is hung in recurrence, self-actuating brake meeting was lost efficacy, after long-time use, when brake copper packing is no longer level and smooth, consequence is more serious.
Utility model content
The utility model technical issues that need to address be to provide a kind of brake deciliter smooth and easy, under various operating modes all safe and reliable motor-driven grinding mill dead-man's devices of self-actuating brake.
For addressing the above problem, technical solution adopted in the utility model is:
A kind of motor-driven grinding mill dead-man's device, comprise the transmission gear being arranged on transmission shaft, the gap installation shaft brake copper sheathing at transmission gear and transmission shaft two ends, is engaged with brake gear on transmission gear, the brake copper sheathing inner side of transmission shaft one end is provided with the brake nut being engaged on transmission gear; Described brake gear is provided with a projection near the end face edge place of brake nut, is axially provided with one end and stretches into the brake bolt matching with projection between brake gear and brake nut on brake nut.
Improvement of the present utility model is: the front end that described brake bolt stretches out brake nut is set to the plane matching with the gear upper protruding block end face that brakes; Maximum axial angle between described projection and brake bolt is 15 °.
The beneficial effect that adopts technique scheme to produce is:
The projection that the utility model is arranged on by matching on brake gear completes brake with the brake bolt being arranged on brake nut, the screwing type axial vane surface contact that becomes brake gear in brake process is radial point contact, brake nut is subject to less than extruding, stopped the situation that brake gear and brake copper packing and brake nut are adhered, brake is deciliter smooth and easy, under various operating modes, use for a long time, self-actuating brake is all safe and reliable.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model brake nut and brake gear side TV structure schematic diagram;
Wherein: 1, brake copper sheathing, 2, brake nut, 3, brake gear, 4, brake facing, 6, brake adds dish, 7, transmission gear, 8, brake copper sheathing, 9, transmission shaft, 10, copper sheathing, 11, interlocking brake gear, 12, projection, 13, brake bolt.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
This is novel is to improve on the basis of existing dead-man's device, existing dead-man's device has born after opposition (as hoisted in position or while grinding tail rope pulling force be greater than weight gravity), brake gear can push brake nut under the effect of screw thread, cause brake gear and brake copper packing and brake nut to be adhered, when lighter items is hung in recurrence, self-actuating brake meeting was lost efficacy, and while using for a long time rear braking copper packing unsmooth, consequence is more serious.The utility model dead-man's device is that the screwing type axial vane surface contact of brake gear is become to radial point contact, has removed brake copper packing, on brake gear, projection is set, and rotary stopper brake bolt is set on brake nut.Its concrete structure is as described below:
As shown in Figure 1, this novel transmission gear 7 that comprises, brake copper sheathing 1, 8, brake nut 2, brake gear 3, brake facing 4, interlocking brake gear 11, copper sheathing 10, dish 6 and transmission shaft 9 are added in brake, described transmission gear 7 is terrace (ladder-type) gear, and only in the end on one-level halfpace, teeth are set, this transmission gear 7 is arranged on transmission shaft, brake copper sheathing 1 is arranged in the space of axle head transmission gear and transmission shaft 9, dish 6 is added in brake, copper sheathing 10, brake gear 3, brake nut 2 successively order is arranged on transmission gear 7, during installation, by close teeth one side, started to install, from brake facing 4 and interlocking brake gear 11, be arranged on copper sheathing 10, install after copper sheathing 10, brake facing 4 and interlocking brake gear 11 are installed again, brake facing is positioned at the both sides of interlocking brake gear.Brake gear 3 arranges projection 12 near the end face edge place of brake nut 2, is axially provided with brake bolt 13 on brake nut 2, and one end of brake bolt 13 is stretched between brake gear and brake nut, and the brake that matched with projection.
In the present embodiment, the part that brake bolt front end stretches out brake nut is provided with plane (bolt 13 that is about to brake polishes flat with projection 12 contacts site), coordinates with the side of the projection arranging on brake nut, also can add bullet pad and prevent from getting loose.After self-actuating brake installation, need to check that self-actuating brake is deciliter smooth and easy, fluent.Maximum axial angle between projection and brake bolt is set to 15 °, and as shown in Figure 2, the gear that brakes can rotate within the scope of 15 °, realizes the conversion of self-actuating brake degree of tightness.
Claims (2)
1. a motor-driven grinding mill dead-man's device, comprise the transmission gear (7) being arranged on transmission shaft (9), the gap installation shaft brake copper sheathing at transmission gear and transmission shaft two ends, on transmission gear, be engaged with brake gear, the brake copper sheathing inner side of transmission shaft one end is provided with the brake nut being engaged on transmission gear; It is characterized in that: described brake gear is provided with a projection (12) near the end face edge place of brake nut, on brake nut, be axially provided with one end and stretch into the brake bolt (13) matching with projection between brake gear and brake nut.
2. motor-driven grinding mill dead-man's device according to claim 1, is characterized in that: the front end that described brake bolt (13) stretches out brake nut is set to the plane matching with the gear upper protruding block end face that brakes; Maximum axial angle between described projection (12) and brake bolt (13) is 15 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320720932.4U CN203582383U (en) | 2013-11-15 | 2013-11-15 | Automatic brake set for power-driven winches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320720932.4U CN203582383U (en) | 2013-11-15 | 2013-11-15 | Automatic brake set for power-driven winches |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203582383U true CN203582383U (en) | 2014-05-07 |
Family
ID=50580334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320720932.4U Expired - Fee Related CN203582383U (en) | 2013-11-15 | 2013-11-15 | Automatic brake set for power-driven winches |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203582383U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106672834A (en) * | 2017-03-13 | 2017-05-17 | 泰州市昊鑫电力机具有限公司 | Brake braking device |
| CN108249330A (en) * | 2018-01-18 | 2018-07-06 | 浙江省送变电工程有限公司 | 10kN light automotives are twisted |
-
2013
- 2013-11-15 CN CN201320720932.4U patent/CN203582383U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106672834A (en) * | 2017-03-13 | 2017-05-17 | 泰州市昊鑫电力机具有限公司 | Brake braking device |
| CN108249330A (en) * | 2018-01-18 | 2018-07-06 | 浙江省送变电工程有限公司 | 10kN light automotives are twisted |
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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: 20140507 Termination date: 20181115 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |