CN203295104U - Break release device of block brake - Google Patents
Break release device of block brake Download PDFInfo
- Publication number
- CN203295104U CN203295104U CN2013203003661U CN201320300366U CN203295104U CN 203295104 U CN203295104 U CN 203295104U CN 2013203003661 U CN2013203003661 U CN 2013203003661U CN 201320300366 U CN201320300366 U CN 201320300366U CN 203295104 U CN203295104 U CN 203295104U
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- handle
- brake
- declutches
- iron core
- stand
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Abstract
The utility model relates to a break release device of a block brake, and belongs to the technical field of brakes. The block brake comprises a static iron core, a movable iron core, a friction assembly, coil assemblies, brake springs and the brake release device. The break release device of the block brake is characterized in that the break release device comprises a brake release handle, steel balls, a brake release pull rod, a sustaining piece and a steel ball base, handle grooves are machined in the brake release handle, the shape of the cross sections of the handle grooves is of a gradually changing type deep in the middle and shallow on the two sides, base grooves are formed in the steel ball base, the shape of the cross sections of the base grooves is also of a gradually changing type deep in the middle and shallow on the two sides, through holes are machined in the sustaining piece, the brake release handle, the sustaining piece and the steel ball base are arranged on the brake release pull rod in a sleeved mode in sequence and are locked and arranged on one side of the static iron core, the handle grooves, the through holes and the base grooves are identical in number and correspond in position, and the steel balls are arranged in a space formed by the handle grooves, the through holes and the base grooves. The break release device of the block brake has the advantages that labor is saved in operation, the service life is long, the structure is simple, machining is easy, and maintenance cost is reduced.
Description
Technical field
The utility model belongs to the drg technical field, is specifically related to the brake-releasing gear of a kind of elevator traction machine with block brake, is the improvement to the brake-releasing gear structure of existing block brake.
Background technology
In elevator standard, stipulate: if the required operating effort of car that nominal payload is housed that moves up is not more than 400N (newton), the elevator drive main frame should be installed the manual emergency handling device, can and need to keep its releasing orientation with a vitality with the hand release the brake simultaneously.the structure of the brake-releasing gear of common block brake is by Fig. 1 in the market, Fig. 2 and Fig. 3 disclose, this block brake comprises static iron core 3, moving iron core 2, friction component 1 and be located at the coil pack 4 in static iron core 3, retarding spring 5 and brake-releasing gear, described brake-releasing gear comprises the handle 6 that declutches, steel ball 7, return spring 8, the first jam nut 9, the second jam nut 10, packing ring 11 and the pull bar 12 that declutches, the centre of one end of the described handle 6 that declutches offers handle installing hole 61, peripheral surrounding around handle installing hole 61 is processed with cylindrical-conical handle grooves 62, static iron core 3 has groove on correspondence declutches the face of handle 6, on groove surface, have the dark groove 32 that cylinder adds circular cone, the quantity of the quantity of described dark groove 32 and described handle grooves 62 is identical and position is corresponding, between the two be used to described steel ball 7 is installed, one end of the described pull bar 12 that declutches is fixed on moving iron core 2, the described pull bar 12 that declutches has the other end of thread segment at the endoporus that passes successively moving iron core 2 and static iron core 3, declutch rear use the first jam nut 9 lockings of handle installing hole 61 on handle 6, described steel ball 7 is locked between described handle grooves 62 and described dark groove 32 simultaneously, and the other end end of thread segment of stretching out the pull bar 12 that declutches of the first jam nut 9 is being passed return spring 8 successively, rear use the second jam nut 10 lockings of packing ring 11, soon return spring 8 is locked at and declutches between handle 6 and packing ring 11.When elevator faults or maintenance, towing machine need to declutch, handle 6 rotations of declutching, the handle 6 that declutches drives sphere from deep to shallow the slip of handle grooves 62 with respect to steel ball 7, therefore declutch handle 6 by steel ball 7 jack-up, thereby drive the pull bar 12 that declutches, move axially, reach the purpose that declutches.The shortcoming of this brake-releasing gear is: while declutching, the handle grooves 62 of handle 6 of declutching is cliding frictions with respect to steel ball 7, form friction force, endoporus easily weares and teares, the power that declutches that applies simultaneously is relatively large, finally cause brake-releasing gear to damage, increased the frequency of maintenance or replacing drg, improve maintenance cost.
In view of above-mentioned prior art, be necessary the brake-releasing gear structure of existing block brake is improved, technical scheme described below produces under such background.
Summary of the invention
Task of the present utility model be to provide a kind of simple in structure, processing and assembling easily, long service life, rapid operation, can effectively reduce the brake-releasing gear of the block brake of maintenance cost.
task of the present utility model completes like this: a kind of brake-releasing gear of block brake, described block brake comprises static iron core, moving iron core, friction component and be located at the coil pack in static iron core, retarding spring and brake-releasing gear, be characterized in: described brake-releasing gear comprises the handle that declutches, steel ball, pull bar declutches, retention tab and steel ball stand, the centre of one end of the described handle that declutches offers the handle installing hole for installing, peripheral surrounding around handle installing hole is processed with the handle grooves of a plurality of cross sectional shapes for the shallow gradual change type in middle dark both sides, the centre of described steel ball stand also has the stand mounting hole for installing, peripheral surrounding around the stand mounting hole also is processed with the stand groove of a plurality of cross sectional shapes for the shallow gradual change type in middle dark both sides, the centre of described retention tab offers the retention tab mounting hole for installing equally, peripheral surrounding around the retention tab mounting hole is processed with a plurality of through holes, the described handle that declutches, retention tab and steel ball stand pass through respectively handle installing hole, retention tab mounting hole and stand mounting hole are sleeved on successively on the pull bar that declutches and are locked in a side of static iron core, described handle grooves, the quantity of through hole and stand groove is identical and position is corresponding, described steel ball is placed in handle grooves, in the space that through hole and stand groove three form.
In a specific embodiment of the present utility model, the handle grooves of the gradual change type that dark both sides, described centre are shallow is conical.
In another specific embodiment of the present utility model, the stand groove of the gradual change type that dark both sides, described centre are shallow is conical.
in another specific embodiment of the present utility model, described brake-releasing gear also comprises return spring, packing ring, the first jam nut and the second jam nut, one end of the described pull bar that declutches is fixed on moving iron core, the described pull bar that declutches has the other end of thread segment at the endoporus that passes successively moving iron core and static iron core, stand mounting hole on the steel ball stand, after handle installing hole on retention tab mounting hole on retention tab and the handle that declutches, with the first jam nut, lock, stretch out the other end end of thread segment of the pull bar that declutches of the first jam nut and passing successively return spring, after packing ring, with the second jam nut, lock, soon return spring is locked at and declutches between handle and packing ring.
In another specific embodiment of the present utility model, described brake-releasing gear also comprises packing ring, the first jam nut, the second jam nut, pad and wavy spring, and the end that the described pull bar that declutches has a thread segment is locked with the first jam nut and the second jam nut after the endoporus that passes successively wavy spring, moving iron core and static iron core, stand mounting hole, retention tab mounting hole, handle installing hole, pad, packing ring on the handle that declutches on retention tab on the steel ball stand.
In of the present utility model and then specific embodiment, described steel ball stand and described static iron core integral production form.
More of the present utility model and in specific embodiment, described steel ball stand and described static iron core split production form.
The utility model is due to after adopting said structure, the beneficial effect that has: at first, when declutching, rotate the handle that declutches, steel ball rolls on the vallecular cavity of handle grooves and stand groove surface respectively and from deep to shallow, with respect to brake-releasing gear of the prior art, on the handle that declutches, apply identical power, the handle that declutches in the utility model is higher by the height of jack-up than the handle that declutches of the prior art by the height of steel ball jack-up, so in order to reach the purpose that declutches, the brake-releasing gear in the utility model is more laborsaving; Secondly, what steel ball rotated formation on the vallecular cavity surface of handle grooves and stand groove is friction of rolling, and friction force is little, and is slight to the wearing and tearing of the handle that declutches, steel ball stand or static iron core, extended service life; Again, the technical program is novel, and is simple in structure, and handling ease does not change the inner structure of drg substantially, assembles up conveniently; Finally, reduce the frequency of maintenance or replacing drg, reduced maintenance cost.
The accompanying drawing explanation
Fig. 1 is the structural representation of the brake-releasing gear of block brake in prior art.
Fig. 2 is the partial schematic diagram of handle of declutching described in prior art.
Fig. 3 is the A-A cutaway view of Fig. 2.
Fig. 4 is an example structure schematic diagram of the utility model block brake brake-releasing gear.
Fig. 5 is the structural representation of retention tab described in the utility model.
Fig. 6 is the B-B cutaway view of Fig. 5.
Fig. 7 is the structural representation of steel ball stand described in the utility model.
Fig. 8 is the C-C cutaway view of Fig. 7.
Fig. 9 is another example structure schematic diagram of the utility model block brake brake-releasing gear.
In figure: 1. friction component; 2. move iron core; 3. static iron core, 32. dark grooves; 4. coil pack; 5. retarding spring; 6. handle, 61. handle installing holes, 62. handle grooves declutch; 7. steel ball; 8. return spring; 9. the first jam nut; 10. the second jam nut; 11. packing ring; The pull bar 12. declutch; 13. retention tab, 131. retention tab mounting holes, 132. through holes; 14. steel ball stand, 141. stand mounting holes, 142. stand grooves; 15. pin; 16 pads; 17. wavy spring.
The specific embodiment
For the inspector that the makes Patent Office especially public can be expressly understood technical spirit of the present utility model and beneficial effect more, the applicant general elaborates by reference to the accompanying drawings in the mode of embodiment below, but the description to embodiment is not all the restriction to technical solutions of the utility model, any according to the utility model design done only for pro forma but not substantial equivalent transformation all should be considered as the technical solution of the utility model category.
Embodiment 1
Refer to Fig. 4, Fig. 5, Fig. 6, Fig. 7 and Fig. 8, the brake-releasing gear of a kind of block brake of the utility model, described block brake comprise static iron core 3, moving iron core 2, friction component 1 and are located at coil pack 4, retarding spring 5 and the brake-releasing gear in static iron core 3.described brake-releasing gear comprises the handle 6 that declutches, steel ball 7, return spring 8, the first jam nut 9, the second jam nut 10, packing ring 11, pull bar 12 declutches, retention tab 13, steel ball stand 14 and pin 15, the centre of one end of the described handle 6 that declutches offers the handle installing hole 61 for installing, peripheral surrounding around handle installing hole 61 is processed with a plurality of cylindrical-conical handle grooves 62, four in figure, have been illustrated, on described static iron core 3, on the face of the corresponding handle 6 that declutches, have groove, in groove, be provided with steel ball stand 14, steel ball stand 14 passes through pin 15 location and installation in the groove of static iron core 3.in the centre of steel ball stand 14, have the stand mounting hole 141 for installing, peripheral surrounding around stand mounting hole 141 is processed with a plurality of cylindrical-conical stand grooves 142, four in figure, have been illustrated, between handle 6 and steel ball stand 14, also clamped retention tab 13 declutching, the centre of described retention tab 13 has the retention tab mounting hole 131 for installing equally, peripheral surrounding around retention tab mounting hole 131 is processed with four through holes 132, described handle grooves 62, in the space that through hole 132 is corresponding with the position of stand groove 142 and the three forms, steel ball 7 is installed, one end of the described pull bar 12 that declutches is fixed on moving iron core 2, the described pull bar 12 that declutches has the other end of thread segment at the endoporus that passes successively moving iron core 2 and static iron core 3, stand mounting hole 141 on steel ball stand 14, rear use the first jam nut 9 lockings of retention tab mounting hole 131 on retention tab 13 and the handle installing hole 61 on the handle 6 that declutches, be that steel ball 7 is locked and is arranged on handle grooves 62, in the space that through hole 132 and stand groove 142 threes form.Stretch out the other end end of thread segment of the pull bar 12 that declutches of the first jam nut 9 and passing successively rear use the second jam nut 10 lockings of return spring 8, packing ring 11, be about to return spring 8 and be locked at and declutch between handle 6 and packing ring 11.
Refer to Fig. 9, be used to what play reset role, not return spring 8 and changed wavy spring 17 in this embodiment, concrete difference is: the end that the described pull bar 12 that declutches has a thread segment is rear by the first jam nut 9 and the second jam nut 10 lockings at the endoporus that passes successively wavy spring 17, moving iron core 2 and static iron core 3, the stand mounting hole 141 on steel ball stand 14, the retention tab mounting hole 131 on retention tab 13, handle installing hole 61, pad 16, packing ring 16 on the handle 6 that declutches, and all the other are with the descriptions to embodiment 1.
In above two embodiment, described steel ball stand 14 can form by integral production with described static iron core 3, also can form by split production.
Below in conjunction with Fig. 4 to Fig. 9, narrate the operating principle of block brake described in the utility model:
When elevator faults or maintenance, power supply cuts off, this moment, coil pack 4 was not in running order, due to the elastic force effect of retarding spring 5, drg is locking, between static iron core 3 and moving iron core 2 due to the elastic force effect of retarding spring 5, gap between the two is A, and need to declutch to rotate the traction sheave of towing machine this moment, make elevator be in suitable position, to facilitate trapped personnel and the maintenance lift in the relief elevator.When declutching, only need to rotate the handle 6 that declutches, steel ball 7 will roll on the vallecular cavity surface of handle grooves 62 and stand groove 142 so, steel ball 7 in handle grooves 62 from deep to shallow, steel ball 7 in stand groove 142 equally also from deep to shallow, therefore declutch handle 6 by steel ball 7 jack-up, thereby drive the pull bar 12 that declutches, move axially, reach the purpose that declutches.Here, handle grooves 62 and stand groove 142 come laborsavingly than handle grooves in prior art 62 with respect to the cliding friction of steel ball 7 with respect to the friction of rolling of steel ball 7, frayed degree is little, the handle 6 that declutches is high by the height of jack-up, therefore want to reach the purpose that declutches, the power that is applied on the handle 6 that declutches is little with respect to the brake-releasing gear of prior art.
In sum, technical scheme provided by the utility model has overcome the shortcoming in the prior art, has reached goal of the invention, has embodied the described technique effect of applicant.
Claims (7)
1. the brake-releasing gear of a block brake, described block brake comprises static iron core (3), moving iron core (2), friction component (1) and be located at the coil pack (4) in static iron core (3), retarding spring 5 and brake-releasing gear, it is characterized in that: described brake-releasing gear comprises the handle that declutches (6), steel ball (7), pull bar (12) declutches, retention tab (13) and steel ball stand (14), the centre of one end of the described handle that declutches (6) offers the handle installing hole (61) for installing, peripheral surrounding around handle installing hole (61) is processed with the handle grooves (62) of a plurality of cross sectional shapes for the shallow gradual change type in middle dark both sides, the centre of described steel ball stand (14) also has the stand mounting hole (141) for installing, peripheral surrounding around stand mounting hole (141) also is processed with the stand groove (142) of a plurality of cross sectional shapes for the shallow gradual change type in middle dark both sides, the centre of described retention tab (13) offers the retention tab mounting hole (131) for installing equally, peripheral surrounding around retention tab mounting hole (131) is processed with a plurality of through holes (132), the described handle that declutches (6), retention tab (13) and steel ball stand (14) are respectively by handle installing hole (61), retention tab mounting hole (131) and stand mounting hole (141) are sleeved on the side that static iron core (3) was gone up and be locked in to the pull bar that declutches (12) successively, described handle grooves (62), the quantity of through hole (132) and stand groove (142) is identical and position is corresponding, described steel ball (7) is placed in handle grooves (62), in the space that through hole (132) and stand groove (142) three form.
2. the brake-releasing gear of block brake according to claim 1, is characterized in that the handle grooves (62) of the gradual change type that dark both sides, described centre are shallow is for conical.
3. the brake-releasing gear of block brake according to claim 1, is characterized in that the stand groove (142) of the gradual change type that dark both sides, described centre are shallow is for conical.
4. the brake-releasing gear of block brake according to claim 1, it is characterized in that described brake-releasing gear also comprises return spring (8), packing ring (11), the first jam nut (9) and the second jam nut (10), one end of the described pull bar that declutches (12) is fixed on moving iron core (2), the described pull bar that declutches (12) has the other end of thread segment at the endoporus that passes successively moving iron core (2) and static iron core (3), stand mounting hole (141) on steel ball stand (14), after handle installing hole (61) on retention tab mounting hole (131) on retention tab (13) and the handle that declutches (6), with the first jam nut (9), lock, stretch out the other end end of thread segment of the pull bar that declutches (12) of the first jam nut (9) and passing successively return spring (8), after packing ring (11), with the second jam nut (10), lock, being about to return spring (8) is locked between the handle that declutches (6) and packing ring (11).
5. the brake-releasing gear of block brake according to claim 1, it is characterized in that described brake-releasing gear also comprises packing ring (11), the first jam nut (9), the second jam nut (10), pad (16) and wavy spring (17), the end that the described pull bar that declutches (12) has thread segment is passing wavy spring (17) successively, the endoporus of moving iron core (2) and static iron core (3), stand mounting hole (141) on steel ball stand (14), retention tab mounting hole (131) on retention tab (13), handle installing hole (61) on handle (6) declutches, pad (16), after packing ring (11), with the first jam nut (9) and the second jam nut (10), lock.
6. the brake-releasing gear of block brake according to claim 1, is characterized in that described steel ball stand (14) and described static iron core (3) integral production form.
7. the brake-releasing gear of block brake according to claim 1, is characterized in that described steel ball stand (14) and described static iron core (3) split production form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203003661U CN203295104U (en) | 2013-05-29 | 2013-05-29 | Break release device of block brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203003661U CN203295104U (en) | 2013-05-29 | 2013-05-29 | Break release device of block brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203295104U true CN203295104U (en) | 2013-11-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203003661U Expired - Lifetime CN203295104U (en) | 2013-05-29 | 2013-05-29 | Break release device of block brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203295104U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113602994A (en) * | 2021-09-29 | 2021-11-05 | 苏州通润驱动设备股份有限公司 | Brake for traction machine and manufacturing method thereof |
-
2013
- 2013-05-29 CN CN2013203003661U patent/CN203295104U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113602994A (en) * | 2021-09-29 | 2021-11-05 | 苏州通润驱动设备股份有限公司 | Brake for traction machine and manufacturing method thereof |
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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 |
Granted publication date: 20131120 |
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| CX01 | Expiry of patent term |