CN102275796A - Emergency braking device clamped on traction wheel of traction machine - Google Patents
Emergency braking device clamped on traction wheel of traction machine Download PDFInfo
- Publication number
- CN102275796A CN102275796A CN2011101457472A CN201110145747A CN102275796A CN 102275796 A CN102275796 A CN 102275796A CN 2011101457472 A CN2011101457472 A CN 2011101457472A CN 201110145747 A CN201110145747 A CN 201110145747A CN 102275796 A CN102275796 A CN 102275796A
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- towing machine
- traction sheave
- emergency braking
- machine body
- quiet dish
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Abstract
The invention discloses an emergency braking device clamped on a traction wheel of a traction machine, belonging to ascending overspeed protection devices of lift cars. The traction machine comprises a traction machine body, a traction wheel arranged on the traction machine body and the emergency braking device. The traction machine is characterized in that an electromagnetic clamp disk type brake is adopted to serve as the emergency braking device, is arranged on a horizontal or vertical mounting bottom stud of the traction machine body, and is used for clamping the traction wheel, and the electromagnetic clamp disk type brake corresponds to a position of the traction wheel. The emergency braking device has the advantages of good sensitivity, timely response and excellent brake effect, is not only convenient to mount, but also beneficial to saving mounting space; and the effective area for braking is large, and thus, the safety in lifting operation is ensured.
Description
Technical field
The present invention relates to a kind of lift car protection device for over-speed ascending, relate in particular to a kind of emergency braking apparatus that is clamped on the towing machine traction sheave
Background technology
GB7588-2003 " elevator manufacturing and installation safety standard " is defined in when arranging elevator the car protection device for over-speed ascending must be installed; this device be used in case of emergency rapidly stop traction sheave or steel rope or to pouring weight with the stop elevator car, perhaps direct stop car.Bridge railway carriage or compartment protection device for over-speed ascending in the market is the wire holder of clamped wire rope mostly and acts directly on slipper on the traction sheave, and they are all slow from the process action that is opened to the stop car, and poor sensitivity, response are slow, have certain defective.
For example Chinese utility model patent Granted publication CN2758218Y discloses a kind of " rope brake for overspeed upgoing elevator ", its working process is: when the up hypervelocity of lift car reaches the responsiveness of velocity limiter, velocity limiter generation mechanical action, move to the snap switch direction by triggering stay cord drive frizzen, frizzen can make the snap switch action earlier, cut off the electricity supply, towing machine stall while hanger plate is moved with frizzen removable pin is broken off relations, the movable voussoir in steel rope both sides makes the front and back liner plate clamp steel rope to lower slider simultaneously.Because inertia makes the car of hypervelocity continue upward movement, be that counterweight can continue to move downward, traction steel-cable will continue to glide by drive activity voussoir like this, and the liner plate on the movable voussoir produces enough friction force to steel rope, make the counterweight stop, that is to say to make up car deceleration stop.For example the Granted publication that proposes of the applicant unit number discloses " safety catch on a kind of traction sheave that acts on towing machine " for CN201567126U again, its working process is: when elevator moves generation out of control hypervelocity, when speed reaches the mechanical action of up velocity limiter, up velocity limiter output mechanical action signal, impel the emergency braking apparatus action, through after a series of actions, the cylindrical annulated column inside face of friction lining on the emergency braking apparatus brake scotch and traction sheave fits and produces rubbing effect, because the rotatory inertia of traction sheave further drags friction lining locking, last stop traction sheave makes up car stop then.Example listed above has illustrated all no matter existing be the wire holder of clamping elevator wire rope or the slipper of direct stop traction sheave, all be with after steel rope or traction sheave contact at slipper, utilize the motional inertia of movable bodies such as counterweight, traction sheave to produce reverse friction force and come the stop car, this from brake equipment received signal → move to steel rope or traction sheave contact → to the motion process that has enough friction force stop cars certain hysteresis quality is arranged again, the effect of its braking is unsatisfactory, has potential safety hazard.
In view of above-mentioned prior art, the applicant has done useful design, has found solution to the problems described above, and be facts have proved it is effective, and technical scheme described below produces under this background
Summary of the invention
Task of the present invention be to provide a kind of highly sensitive, response in time, braking effect significantly, can guarantee elevator safe in utilization be clamped in emergency braking apparatus on the towing machine traction sheave.
Task of the present invention is finished like this, a kind of emergency braking apparatus that is clamped on the towing machine traction sheave, described towing machine comprises the towing machine body, is located at traction sheave and emergency braking apparatus on the towing machine body, be characterized in: described emergency braking apparatus adopts the electromagnetism caliper disk brake, this electromagnetism caliper disk brake is installed on the horizontal installation footing or vertical installation footing of towing machine body, and, be used for the described traction sheave of clamping corresponding to the position of traction sheave.
In a specific embodiment of the present invention, described electromagnetism caliper disk brake comprises quiet dish, magnet coil, Moving plate, pincers seat, first friction lining, second friction lining, retarding spring, be provided with magnet coil in the described quiet dish, be provided with retarding spring between quiet dish and the Moving plate, first friction lining is installed on the Moving plate, second friction lining is installed on the pincers seat, described first friction lining and second friction lining are positioned at the both sides of traction sheave Width, are used for the side, both sides of the described traction sheave of clamping.
In another specific embodiment of the present invention, offer mounting hole on the described quiet dish, be provided with lining in the mounting hole, be equipped with a guide rod in the lining, this guide rod by screw retention on a mount pad, described mount pad by screw retention on the horizontal installation footing or vertical installation footing of towing machine body.
In another specific embodiment of the present invention, described quiet dish, Moving plate and pincers seat are connected in turn by bolt assembly, wherein: constitute between quiet dish and the pincers seats and captive joint, constitute flexible connection between quiet dish and the Moving plate, and the working clearance of setting up between quiet dish and the Moving plate is A.
In another specific embodiment of the present invention, when described towing machine body adopted vertical installation, described electromagnetism caliper disk brake was installed on the described horizontal installation footing; When described towing machine body adopted horizontal installation, described electromagnetism caliper disk brake was installed on the described vertical installation footing.
The present invention is because after adopting said structure, the beneficial effect that has: at first, emergency braking apparatus adopts the electromagnetism caliper disk brake, when elevator moves generation out of control hypervelocity, when speed reaches the mechanical action speed of up velocity limiter, up velocity limiter output signal is cut off the electricity supply, electromagnetism caliper disk brake moment dead electricity, electromagnetic force pop-off, the Moving plate of drg and pincers seats under the application force of retarding spring by first, second friction lining is the side, both sides of clamping traction sheave immediately, and then the motion of stop car, the electrical action speed height of this emergency braking apparatus, sensitivity is good, and response is in time, braking effect is splendid, has avoided the shortcoming of existing accident brake; Secondly, when the horizontal installation of towing machine, the electromagnetism caliper disk brake is installed on the vertical installation footing of towing machine, when towing machine adopted vertical installation, the electromagnetism caliper disk brake was installed on the horizontal installation footing of towing machine, this mounting means flexibly, the footing that had both utilized towing machine to process and be not used to install, saved again in the prior art because of the shared installing space of accident brake such as wire holder is installed, therefore not only easy for installation, and saved installing space; Again, the electromagnetism caliper disk brake is clamped on the side, both sides of traction sheave Width, has not only avoided the damage of existing accident brake to steel rope or traction sheave outside face, and the payload space of braking is big, good braking effect is guaranteed the safety of elevator operation.
Description of drawings
Structural representation when Fig. 1 adopts vertical installation for towing machine body of the present invention.
Partial perspective view when Fig. 2 adopts vertical installation for towing machine body of the present invention.
Fig. 3 is the A-A cutaway view of Fig. 1 when the electromagnetism caliper disk brake is in release position.
Fig. 4 is the B-B cutaway view of Fig. 1 when the electromagnetism caliper disk brake is in braking mode.
Among the figure: 1. electromagnetism caliper disk brake, 11. quiet dishes, 12. linings, 13. magnet coils, 14. Moving plates, 15. clamp seats, 16. first friction linings, 17. second friction linings, 18. bolt assemblies, 19. retarding springs; 2. towing machine body; 3. traction sheave; 4. horizontal installation footing; 5. vertical installation footing; 6. frame; 7. mount pad; 8. guide rod.
The specific embodiment
For the inspector that the makes Patent Office especially public can be expressly understood technical spirit of the present invention and beneficial effect more, the applicant general elaborates in conjunction with the accompanying drawings in the mode of embodiment below, but to the description of embodiment all is not restriction to the present invention program, any according to the present invention's design done only for pro forma but not substantial equivalent transformation all should be considered as technical scheme category of the present invention.
See also Fig. 1 and in conjunction with Fig. 2, a kind of emergency braking apparatus that is clamped on the towing machine traction sheave, described towing machine comprises towing machine body 2, be located at traction sheave 3 and emergency braking apparatus on the towing machine body 2, the structure of described towing machine body 2 is not subjected to any restriction and belongs to known prior art, here repeat no more, the towing machine body 2 of Fig. 1 signal is provided with horizontal installation footing 4, vertical installation footing 5, described towing machine body 2 adopts the mode of vertical installation to be installed on the frame 6, described emergency braking apparatus adopts electromagnetism caliper disk brake 1, this electromagnetism caliper disk brake 1 is installed on the horizontal installation footing 4 of towing machine body 2, and, be used for the described traction sheave 3 of clamping corresponding to the position of traction sheave 3.When if towing machine body 2 adopts horizontally-mounted mode to be installed on the frame 6,1 of electromagnetism caliper disk brake is installed on the vertical installation footing 5 of towing machine body 2 (meaning not shown in the figures).Because the installation of electromagnetism caliper disk brake 1 is not subjected to towing machine body 2 vertical or horizontally-mounted influences, so install more flexible.
See also Fig. 2, Fig. 3 and Fig. 4, described electromagnetism caliper disk brake 1 comprises quiet dish 11, magnet coil 13, Moving plate 14, pincers seat 15, first friction lining 16, second friction lining 17, retarding spring 19 etc., be provided with magnet coil 13 in the described quiet dish 11, be provided with retarding spring 19 between quiet dish 11 and the Moving plate 14, first friction lining 16 sticks on the Moving plate 14, second friction lining 17 sticks on the inboard of pincers seat 15, described first friction lining 16 and second friction lining 17 are positioned at the both sides of traction sheave 3 Widths and are set in parallel, and are used for the side, both sides of the described traction sheave 3 of clamping.As shown in Figure 3, offer mounting hole on the described quiet dish 11, be provided with lining 12 in the mounting hole, be equipped with a guide rod 8 in the lining 12, on a mount pad 7, described mount pad 7 is by the horizontal installation footing 4 of screw retention at towing machine body 2 by screw retention for this guide rod 8.As shown in Figure 4, described quiet dish 11, Moving plate 14 and pincers seat 15 are connected in turn by bolt assembly 18, wherein: constitute between quiet dish 11 and the pincers seat 15 and captive joint, constitute flexible connection between quiet dish 11 and the Moving plate 14, and the working clearance of setting up between quiet dish 11 and the Moving plate 14 is A.
Please continue to consult Fig. 1, Fig. 2, Fig. 3 and Fig. 4, narrate principle of work of the present invention: under normal circumstances, the elevator traction machine energized, traction sheave 3 normal operations on the towing machine body 2, the magnet coil 13 of electromagnetism caliper disk brake 1 is in "on" position, at Moving plate 14, form magnetic loop between quiet dish 11 and the working clearance A, produce electromagnetic force, Moving plate 14 and quiet dish 11 are attracted each other, in attracting the process that moves, Moving plate 14 is moved to the left, quiet dish 11 drives pincers seat 15 and moves right along guide rod 8, the net result that moves is the both sides that working clearance A has been assigned to traction sheave 3, makes first of Moving plate 14 and pincers seat 15 inboards, second friction lining 16,17 sides, both sides of clamping traction sheave 3 no longer, traction sheave 3 can freely rotate.
When the elevator operation produces hypervelocity, when speed reaches the mechanical action of up velocity limiter (not shown), up velocity limiter output action signal, cut off the power supply of this elevator traction machine, the magnet coil 13 instantaneous dead electricity of electromagnetism caliper disk brake 1, the instantaneous electromagnetic attraction that loses between quiet dish 11 and the Moving plate 14, Moving plate 14 is under the thrust of retarding spring 19, rely on traction sheave 3, the braking force of retarding spring 19 oppositely promotes quiet dish 11 again and deviates from Moving plate 14, moving of quiet dish 11 drives 15 motions of pincers seat again, pincers seat 15 is moved to Moving plate 14 directions, so pincers seat 15 also relies on traction sheave 3, make the side, both sides that first friction lining 16 on the Moving plate 14 and second friction lining 17 on the pincers seat 15 clamp traction sheave 3, thereby stop traction sheave 3, the steel rope stop motion of the feasible traction of the friction force between traction sheave 3 and steel rope car, then lift car stop motion, avoid car to rush to summit, reach the purpose of emergency braking, in this process, 1 response of this electromagnetism caliper disk brake in time, and than the wire holder in the prior art or to act on the slipper of traction sheave more direct, the stop traction sheave has demonstrated fully safety efficiently.
In sum, technical scheme provided by the present invention has overcome the shortcoming in the prior art, has reached goal of the invention, has embodied the described technique effect of applicant
Claims (5)
1. emergency braking apparatus that is clamped on the towing machine traction sheave, described towing machine comprises towing machine body (2), is located at traction sheave (3) and emergency braking apparatus on the towing machine body (2), it is characterized in that: described emergency braking apparatus adopts electromagnetism caliper disk brake (1), this electromagnetism caliper disk brake (1) is installed on the horizontal installation footing (4) or vertical installation footing (5) of towing machine body (2), and, be used for the described traction sheave of clamping (3) corresponding to the position of traction sheave (3).
2. the emergency braking apparatus that is clamped on the towing machine traction sheave according to claim 1, it is characterized in that described electromagnetism caliper disk brake (1) comprises quiet dish (11), magnet coil (13), Moving plate (14), pincers seats (15), first friction lining (16), second friction lining (17), retarding spring (19), be provided with magnet coil (13) in the described quiet dish (11), be provided with retarding spring (19) between quiet dish (11) and the Moving plate (14), first friction lining (16) is installed on the Moving plate (14), second friction lining (17) is installed on the pincers seats (15), described first friction lining (16) and second friction lining (17) are positioned at the both sides of traction sheave (3) Width, are used for the side, both sides of the described traction sheave of clamping (3).
3. the emergency braking apparatus that is clamped on the towing machine traction sheave according to claim 2, it is characterized in that offering mounting hole on the described quiet dish (11), be provided with lining (12) in the mounting hole, be equipped with a guide rod (8) in the lining (12), this guide rod (8) by screw retention on a mount pad (7), described mount pad (7) by screw retention on the horizontal installation footing (4) or vertical installation footing (5) of towing machine body (2).
4. the emergency braking apparatus that is clamped on the towing machine traction sheave according to claim 2, it is characterized in that described quiet dish (11), Moving plate (14) and pincers seats (15) are connected in turn by bolt assembly (18), wherein: constitute between quiet dish (11) and the pincers seat (15) and captive joint, constitute flexible connection between quiet dish (11) and the Moving plate (14), and the working clearance of setting up between quiet dish (11) and the Moving plate (14) is A.
5. the emergency braking apparatus that is clamped on the towing machine traction sheave according to claim 1 and 2, when it is characterized in that described towing machine body (2) adopts vertical installation, described electromagnetism caliper disk brake (1) is installed on the described horizontal installation footing (4); When described towing machine body (2) adopted horizontal installation, described electromagnetism caliper disk brake (1) was installed on the described vertical installation footing (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101457472A CN102275796A (en) | 2011-06-01 | 2011-06-01 | Emergency braking device clamped on traction wheel of traction machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101457472A CN102275796A (en) | 2011-06-01 | 2011-06-01 | Emergency braking device clamped on traction wheel of traction machine |
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| Publication Number | Publication Date |
|---|---|
| CN102275796A true CN102275796A (en) | 2011-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101457472A Pending CN102275796A (en) | 2011-06-01 | 2011-06-01 | Emergency braking device clamped on traction wheel of traction machine |
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| Country | Link |
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| CN (1) | CN102275796A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104291180A (en) * | 2014-07-30 | 2015-01-21 | 苏州汉森华纳节能科技有限公司 | Elevator guiding wheel |
| CN108750891A (en) * | 2018-08-10 | 2018-11-06 | 秦川机床工具集团股份公司 | A kind of planetary gear driver |
| CN108814408A (en) * | 2018-08-10 | 2018-11-16 | 中国建筑科学研究院有限公司建筑机械化研究分院 | Limiter of speed of saving oneself applied to window cleaning equipment elevator |
| CN111824895A (en) * | 2019-04-15 | 2020-10-27 | 杭州沪宁电梯部件股份有限公司 | Accidental car movement protection device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1528652A (en) * | 2003-10-14 | 2004-09-15 | 曾晓东 | Belt-drive elevator dragging machine |
| CN101225862A (en) * | 2008-01-29 | 2008-07-23 | 苏州通润驱动设备股份有限公司 | Dish type brake |
| CN201647765U (en) * | 2010-04-22 | 2010-11-24 | 苏州通润驱动设备股份有限公司 | Emergency braking device used on traction sheave of traction machine |
| CN202107401U (en) * | 2011-06-01 | 2012-01-11 | 苏州通润驱动设备股份有限公司 | Emergency braking device clamped on traction sheave of tractor |
-
2011
- 2011-06-01 CN CN2011101457472A patent/CN102275796A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1528652A (en) * | 2003-10-14 | 2004-09-15 | 曾晓东 | Belt-drive elevator dragging machine |
| CN101225862A (en) * | 2008-01-29 | 2008-07-23 | 苏州通润驱动设备股份有限公司 | Dish type brake |
| CN201647765U (en) * | 2010-04-22 | 2010-11-24 | 苏州通润驱动设备股份有限公司 | Emergency braking device used on traction sheave of traction machine |
| CN202107401U (en) * | 2011-06-01 | 2012-01-11 | 苏州通润驱动设备股份有限公司 | Emergency braking device clamped on traction sheave of tractor |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104291180A (en) * | 2014-07-30 | 2015-01-21 | 苏州汉森华纳节能科技有限公司 | Elevator guiding wheel |
| CN108750891A (en) * | 2018-08-10 | 2018-11-06 | 秦川机床工具集团股份公司 | A kind of planetary gear driver |
| CN108814408A (en) * | 2018-08-10 | 2018-11-16 | 中国建筑科学研究院有限公司建筑机械化研究分院 | Limiter of speed of saving oneself applied to window cleaning equipment elevator |
| CN108814408B (en) * | 2018-08-10 | 2020-07-24 | 中国建筑科学研究院有限公司建筑机械化研究分院 | Self-rescue speed limiter applied to window cleaning machine winch |
| CN111824895A (en) * | 2019-04-15 | 2020-10-27 | 杭州沪宁电梯部件股份有限公司 | Accidental car movement protection device |
| CN111824895B (en) * | 2019-04-15 | 2024-06-04 | 杭州沪宁电梯部件股份有限公司 | Unexpected protection device that removes of car |
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Application publication date: 20111214 |