CN111942990A - Cage stall and rope breakage dual-protection device - Google Patents
Cage stall and rope breakage dual-protection device Download PDFInfo
- Publication number
- CN111942990A CN111942990A CN202010775396.2A CN202010775396A CN111942990A CN 111942990 A CN111942990 A CN 111942990A CN 202010775396 A CN202010775396 A CN 202010775396A CN 111942990 A CN111942990 A CN 111942990A
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- China
- Prior art keywords
- rope
- protection device
- rack
- cage
- stall
- 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.)
- Pending
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- 230000009977 dual effect Effects 0.000 claims description 10
- 230000009471 action Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- KAATUXNTWXVJKI-UHFFFAOYSA-N cypermethrin Chemical compound CC1(C)C(C=C(Cl)Cl)C1C(=O)OC(C#N)C1=CC=CC(OC=2C=CC=CC=2)=C1 KAATUXNTWXVJKI-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
- B66B5/24—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces by acting on guide ropes or cables
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
- B66B5/044—Mechanical overspeed governors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/12—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions in case of rope or cable slack
Abstract
The double protection device for the stalling and the rope breakage of the cage comprises a rack, wherein a stalling protection device and a rope breakage protection device which are arranged up and down are arranged on the rack, one guide rope freely hangs down on each of two sides of the rack, the stalling protection device comprises two guide wheels which are arranged on one side of the rack in front and at the back and clamp the corresponding side guide rope, a centrifugal releaser is arranged on a rotating shaft of one of the guide wheels, and a stalling catcher which is used for clamping the two guide ropes and is started through the centrifugal releaser is arranged on the rack; the broken rope protection device comprises a pull rod, and a broken rope catcher which clamps two guide ropes and is started through the pull rod is arranged on the rack. The braking and parking device can brake and park when the cage stalls, and can also brake and park when the cage is broken, so that safety accidents caused by the fact that the cage falls out of control are avoided, and the operation is safe and reliable.
Description
Technical Field
The invention relates to a mining cage, in particular to a dual protection device for cage stall and rope breakage.
Background
A cage is a vehicle for lifting materials and personnel in a vertical mine. At present, a cage is only provided with a rope breaking protection mechanism, namely, when a rope for lifting the cage is broken, the rope breaking protection mechanism arranged on the cage is braked to prevent the cage from falling. However, in the lifting process of the cage, the falling speed of the cage often exceeds the standard specification requirement due to various reasons, and finally the cage falls out of control to cause safety accidents and operation danger.
Disclosure of Invention
The invention aims to solve the technical problems and provides a cage stall and rope breakage dual protection device which can brake and stop a cage when the cage stalls and can also brake and stop the cage when a rope is broken, so that safety accidents caused by the fact that the cage falls out of control are avoided, and the operation is safe and reliable.
The technical solution of the invention is as follows:
cage stall, disconnected rope duplicate protection device, including the frame, its special character lies in: the stall protection device comprises two guide wheels which are arranged at one side of the frame in a front-back mode and clamp the corresponding side guide rope, a centrifugal releaser is arranged on a rotating shaft of one of the guide wheels, and a stall catcher which is used for clamping the two guide ropes and is started through the centrifugal releaser is arranged on the frame; the broken rope protection device comprises a pull rod, and a broken rope catcher which clamps two guide ropes and is started through the pull rod is arranged on the rack.
Preferably, the centrifugal releaser is composed of a shell, two sliding shafts which are radially and symmetrically arranged in the shell and penetrate out of the shell, sliding blocks fixedly arranged at the inner ends of the sliding shafts, and springs which are sleeved on the sliding shafts and connected between the corresponding side sliding blocks and the inner wall of the shell.
Preferably, the stall catcher is composed of an oil pump arranged on the rack, an oil cylinder arranged on the rack and connected with the oil pump through a pipeline, an oil valve arranged on the pipeline and close to the centrifugal releaser, first shifting forks hinged to two sides of the rack and connected with piston rods of the oil cylinder at tail ends, first tapered slideways arranged on two sides of the rack and narrow at the top and wide at the bottom, and two first wedge-shaped clamping plates arranged in the first tapered slideways, respectively arranged on the front side and the rear side of the guide rope and connected with the head ends of the first shifting forks on the corresponding sides.
Further preferably, the cylinder body of the oil cylinder is hinged with the rack, and when the shifting fork rotates, the oil cylinder rotates in a self-adaptive mode.
Preferably, the head end of the first shifting fork is inserted into the first wedge-shaped clamping plate.
Preferably, the oil valve is hinged with an L-shaped pressing plate on one side, one side of the L-shaped pressing plate is attached to the end of the starting button of the oil valve, the other side of the L-shaped pressing plate is attached to the outer circular surface of the centrifugal releaser, and a torsional spring which enables the L-shaped pressing plate to keep the starting button of the oil valve in a pressed state is arranged on a hinged shaft where the L-shaped pressing plate is located.
Preferably, the broken rope catcher is composed of second shifting forks hinged on two sides of the frame and connected with the pull rods at tail ends, second tapered slideways arranged on two sides of the frame and narrow at the top and wide at the bottom, two second wedge-shaped clamping plates arranged in the second tapered slideways and respectively arranged on the front side and the rear side of the guide rope and connected with the head ends of the second shifting forks on the corresponding sides, and a tension spring connected between the frame and the second shifting forks.
Preferably, the head end of the second shifting fork is inserted into the second wedge-shaped clamping plate.
The invention has the beneficial effects that:
because install stall protection device and disconnected rope protection device that arrange about the frame, fixed mounting is at the mine well head and through the guide rope that the frame both sides were freely hung down, when the cage took place the stall condition, stall protection device braked the parking to the guide rope, when the cage took place to break the rope condition, disconnected rope protection device braked the parking to the guide rope, and stall protection and the protection of rope breakage link each other, carried out dual protection to the cage, avoided the cage whereabouts out of control and took place the incident, operation safe and reliable.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a left side view of the stall protection device of FIG. 1;
FIG. 3 is a schematic view of the centrifugal releaser of FIG. 1;
FIG. 4 is a graph of the position of the centrifugal release and oil valve of FIG. 1;
FIG. 5 is a left side view of the ripcord protection device of FIG. 1;
in the figure: 1-a rack, 2-a guide rope, 3-a guide wheel, 4-a centrifugal releaser, 5-an oil pump, 6-an oil cylinder, 7-an oil valve, 8-a first shifting fork, 9-a first tapered slideway, 10-a first wedge-shaped splint, 11-an L-shaped pressing plate, 12-a torsion spring, 13-a pull rod, 14-a second shifting fork, 15-a second tapered slideway, 16-a second wedge-shaped splint, 17-a tension spring, 401-a shell, 402-a sliding shaft, 403-a sliding block and 404-a spring.
Detailed Description
As shown in fig. 1-5, the double protection device for stalling and rope breaking of a cage comprises a frame 1, a stalling protection device and a rope breaking protection device which are arranged up and down are arranged on the frame 1, one guide rope 2 freely hangs down on each side of the frame 1, the stalling protection device comprises two guide wheels 3 which are arranged on one side of the frame 1 in a front-back mode and clamp the corresponding side guide rope 2, a centrifugal releaser 4 is arranged on a rotating shaft of one of the guide wheels 3, the centrifugal releaser 4 is composed of a shell 401, two sliding shafts 402 which are radially and symmetrically arranged in the shell 401 and penetrate through the shell 401, sliding blocks 403 which are fixedly arranged at the inner ends of the sliding shafts 402, springs 404 which are sleeved on the sliding shafts 402 and connected between the corresponding side sliding blocks 403 and the inner wall of the shell 401, a stall catcher which is used for clamping two guide ropes 2 and started by the centrifugal releaser 4 is arranged on the frame 1, the stall catcher is composed of an oil pump 5 arranged on a frame 1, an oil cylinder 6 hinged on the frame 1 and connected with the oil pump 5 through a pipeline, an oil valve 7 arranged on the pipeline and close to a centrifugal releaser 4, first shifting forks 8 hinged on two sides of the frame 1 and connected with the piston rods of the oil cylinder 6 at the tail ends, first tapered slideways 9 arranged on two sides of the frame 1 and narrow at the top and wide at the bottom, two first wedge-shaped clamping plates 10 arranged in the first tapered slideways 9 and respectively arranged on the front side and the rear side of a guide rope 2 and spliced with the head ends of the first shifting forks 8 on the corresponding sides, one side of the oil valve 7 is hinged with an L-shaped pressing plate 11, one side of the L-shaped pressing plate 11 is attached to the starting button end of the oil valve 7, the other side of the L-shaped pressing plate 11 is attached to the outer circular surface of the centrifugal releaser 4, a torsion spring 12 for holding the start button of the oil valve 7 pressed by the L-shaped pressure plate 11 is attached to a hinge shaft of the L-shaped pressure plate 11. The broken rope protection device comprises a pull rod 13, a broken rope catcher which is started by installing and clamping two guide ropes 2 on a rack 1 and by the pull rod 13 is composed of a second shifting fork 14 hinged on two sides of the rack 1 and connected with the pull rod 13 at the tail end, a second tapered slideway 15 arranged on two sides of the rack 1 and narrow at the top and wide at the bottom, two second tapered clamping plates 16 installed in the second tapered slideway 15 and respectively arranged on the front side and the rear side of the guide ropes 2 and spliced with the head end of the second shifting fork 14 on the corresponding side, and a tension spring 17 connected between the rack 1 and the second shifting fork 14.
The working principle of the invention is as follows:
the machine frame 1 is fixedly installed at the top of the cage, the upper ends of the two guide ropes 2 are fixed at the wellhead of a mine, the winch is connected with the pull rod 13 and used for releasing the cage downwards through the mine, the second shifting fork 14 overcomes the elasticity of the tension spring 17 to drive the second wedge-shaped clamping plates 16 to move downwards, so that the two second wedge-shaped clamping plates 16 are separated from the guide ropes 2, and the guide wheels 3 rolling downwards along the guide ropes 2 drive the centrifugal releasers 4 to rotate.
When the descending speed of the cage 1 exceeds 12m/s, the centrifugal force generated by the sliding block 403 in the centrifugal releaser 4 overcomes the elastic force of the spring 404, the sliding block 403 radially pushes the sliding shaft 402 outwards, the sliding shaft 402 pulls the L-shaped pressing plate 11 to rotate against the torsion of the torsion spring 12, the button of the L-shaped pressing plate 11, which is separated from the oil valve 7, conducts a pipeline connected between the oil pump 5 and the oil cylinder 6, the oil cylinder 6 extends out of a piston rod to push the first shifting fork 8 to rotate, the head end of the shifting fork 8 upwards lifts the two first wedge-shaped clamping plates 10 arranged in front and at the back of the corresponding side, and under the guiding action of the first tapered slideway 9 with the narrow upper part and the wide part, the two first wedge-shaped clamping plates 10 arranged in front and at the back are mutually close to clamp the guide rope 2, and under the friction force action.
When the stay cord of connecting pull rod 13 through the winch broke, extension spring 17 kick-backs and drives second wedge splint 16 upward movement through second shift fork 14, under the guiding action of narrow second cone slide 15 wide down in the top, two second wedge splint 16 that arrange from beginning to end are close to each other with the centre gripping of direction rope 2, under the frictional force effect of second wedge splint 16 and direction rope 2, slow down the cage to the parking and carry out the protection of restricting absolutely.
When the stall protection is started, the pull rope connected with the pull rod 13 through the winch is necessarily in a loose state, and the rope breakage protection is started along with the pull rope; when the rope breaking protection is started, the descending speed of the cage inevitably exceeds 12m/s, and the stall protection is started along with the rope breaking protection, so that the stall protection and the rope breaking protection are linked with each other to carry out double protection on the cage.
The above description is only exemplary of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. Cage stall, disconnected rope duplicate protection device, including the frame, its characterized in that: the stall protection device comprises two guide wheels which are arranged at one side of the frame in a front-back mode and clamp the corresponding side guide rope, a centrifugal releaser is arranged on a rotating shaft of one of the guide wheels, and a stall catcher which is used for clamping the two guide ropes and is started through the centrifugal releaser is arranged on the frame; the broken rope protection device comprises a pull rod, and a broken rope catcher which clamps two guide ropes and is started through the pull rod is arranged on the rack.
2. The cage stall, rope break dual protection device of claim 1, wherein: the centrifugal releaser is composed of a shell, two sliding shafts which are radially and symmetrically arranged in the shell and penetrate out of the shell, sliding blocks fixedly arranged at the inner ends of the sliding shafts, and springs sleeved on the sliding shafts and connected between the corresponding side sliding blocks and the inner wall of the shell.
3. The cage stall, rope break dual protection device of claim 1, wherein: the stall catcher is composed of an oil pump arranged on a rack, an oil cylinder arranged on the rack and connected with the oil pump through a pipeline, an oil valve arranged on the pipeline and close to the centrifugal releaser, first shifting forks hinged on two sides of the rack, the tail ends of the first shifting forks are connected with piston rods of the oil cylinder, first tapered slideways arranged on two sides of the rack and narrow at the top and wide at the bottom, and two first wedge-shaped clamping plates arranged in the first tapered slideways, respectively arranged on the front side and the rear side of a guide rope, and connected with the head ends of the first shifting forks on the corresponding sides.
4. The cage stall, rope break dual protection device of claim 3, wherein: the cylinder body of the oil cylinder is hinged with the frame.
5. The cage stall, rope break dual protection device of claim 3, wherein: the head end of the first shifting fork is inserted into the first wedge-shaped clamping plate.
6. The cage stall, rope break dual protection device of claim 1, wherein: the oil valve is characterized in that an L-shaped pressing plate is hinged to one side of the oil valve, one side of the L-shaped pressing plate is attached to the end of a starting button of the oil valve, the other side of the L-shaped pressing plate is attached to the outer circular surface of the centrifugal releaser, and a torsional spring which enables the L-shaped pressing plate to keep the starting button of the oil valve in a pressing state is mounted on a hinged shaft where the L-shaped pressing plate is located.
7. The cage stall, rope break dual protection device of claim 1, wherein: the broken rope catcher is composed of second shifting forks which are hinged on two sides of the rack, the tail ends of the second shifting forks are connected with the pull rod, second tapered slideways which are arranged on two sides of the rack and are narrow at the top and wide at the bottom, two second wedge-shaped clamping plates which are arranged in the second tapered slideways, are respectively arranged on the front side and the rear side of the guide rope and are connected with the head ends of the second shifting forks on the corresponding sides, and a tension spring connected between the rack and the second shifting forks.
8. The cage stall, rope break dual protection device of claim 7, wherein: the head end of the second shifting fork is inserted into the second wedge-shaped clamping plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010775396.2A CN111942990A (en) | 2020-08-05 | 2020-08-05 | Cage stall and rope breakage dual-protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010775396.2A CN111942990A (en) | 2020-08-05 | 2020-08-05 | Cage stall and rope breakage dual-protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111942990A true CN111942990A (en) | 2020-11-17 |
Family
ID=73339488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010775396.2A Pending CN111942990A (en) | 2020-08-05 | 2020-08-05 | Cage stall and rope breakage dual-protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111942990A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2677353Y (en) * | 2002-08-07 | 2005-02-09 | 唐锡庆 | Traction machine |
| JP2005104653A (en) * | 2003-09-30 | 2005-04-21 | Toshiba Elevator Co Ltd | Elevator |
| CN2813554Y (en) * | 2005-07-13 | 2006-09-06 | 唐锡庆 | Automatic controlling hydraulic speed-limiting antifalling locking device for hanging cage |
| CN101327884A (en) * | 2008-07-09 | 2008-12-24 | 中煤第五建设公司 | Anti-drop bucket for shaft sinking |
| CN202729513U (en) * | 2012-05-29 | 2013-02-13 | 新疆维吾尔自治区煤炭科学研究所 | Falling protector for rope-breakage car running in vertical shaft single rope cage |
| CN204022184U (en) * | 2014-06-13 | 2014-12-17 | 吴家集 | Velocity limiter safety tongs device |
| EP3181503A1 (en) * | 2015-12-15 | 2017-06-21 | DualLift GmbH | Rope catch, and lift installation with the same |
| CN108046082A (en) * | 2017-12-12 | 2018-05-18 | 中国矿业大学 | Deep vertical large-tonnage hoisting container Multipoint synchronous braking system and its method of work |
| KR101887142B1 (en) * | 2017-10-23 | 2018-08-09 | 주식회사 송산특수엘리베이터 | Safety Apparatus of Super Size Elevator for Extremely Heavy Load |
| CN109160397A (en) * | 2018-11-12 | 2019-01-08 | 杨传前 | Rail mounted velocity response catching device applied to elevator safety protection |
| CN212222086U (en) * | 2020-08-05 | 2020-12-25 | 锦州大可矿山机械制造有限公司 | Cage stall and rope breakage dual-protection device |
-
2020
- 2020-08-05 CN CN202010775396.2A patent/CN111942990A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2677353Y (en) * | 2002-08-07 | 2005-02-09 | 唐锡庆 | Traction machine |
| JP2005104653A (en) * | 2003-09-30 | 2005-04-21 | Toshiba Elevator Co Ltd | Elevator |
| CN2813554Y (en) * | 2005-07-13 | 2006-09-06 | 唐锡庆 | Automatic controlling hydraulic speed-limiting antifalling locking device for hanging cage |
| CN101327884A (en) * | 2008-07-09 | 2008-12-24 | 中煤第五建设公司 | Anti-drop bucket for shaft sinking |
| CN202729513U (en) * | 2012-05-29 | 2013-02-13 | 新疆维吾尔自治区煤炭科学研究所 | Falling protector for rope-breakage car running in vertical shaft single rope cage |
| CN204022184U (en) * | 2014-06-13 | 2014-12-17 | 吴家集 | Velocity limiter safety tongs device |
| EP3181503A1 (en) * | 2015-12-15 | 2017-06-21 | DualLift GmbH | Rope catch, and lift installation with the same |
| KR101887142B1 (en) * | 2017-10-23 | 2018-08-09 | 주식회사 송산특수엘리베이터 | Safety Apparatus of Super Size Elevator for Extremely Heavy Load |
| CN108046082A (en) * | 2017-12-12 | 2018-05-18 | 中国矿业大学 | Deep vertical large-tonnage hoisting container Multipoint synchronous braking system and its method of work |
| CN109160397A (en) * | 2018-11-12 | 2019-01-08 | 杨传前 | Rail mounted velocity response catching device applied to elevator safety protection |
| CN212222086U (en) * | 2020-08-05 | 2020-12-25 | 锦州大可矿山机械制造有限公司 | Cage stall and rope breakage dual-protection device |
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