CN109650208B - Elevator brake device - Google Patents
Elevator brake device Download PDFInfo
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- CN109650208B CN109650208B CN201811591125.0A CN201811591125A CN109650208B CN 109650208 B CN109650208 B CN 109650208B CN 201811591125 A CN201811591125 A CN 201811591125A CN 109650208 B CN109650208 B CN 109650208B
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- sleeve
- distance
- brake
- brake block
- spring
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- 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
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
- Braking Arrangements (AREA)
Abstract
The elevator brake device is symmetrically arranged on two sides of the top of an elevator car and comprises a bottom plate, a sleeve, a spring, a brake block and a brake detection device, wherein the brake detection device comprises a battery, a motor, a connecting block, a starting pin, a guide seat, a control panel and an acceleration sensor; the sleeve is provided with a first through hole, and the brake block is provided with a second through hole; the motor, the connecting block and the starting pin are sequentially connected; the brake block can be arranged in the hollow cavity of the sleeve, a cylindrical cavity is formed in the third end part of the brake block, the first end part of the spring is arranged in the bottom plate, and the second end part of the spring is arranged in the cylindrical cavity of the brake block; the starting pin can sequentially pass through the first through hole and the second through hole and enter the cylindrical cavity of the brake block; when the starting pin moves vertically upwards until the starting pin is separated from the second end of the spring, the spring is changed from a compression state to a natural state, thrust is generated on the brake block in the horizontal direction, the brake block is ejected out of the sleeve to the inside of the brake groove, and the elevator car is braked.
Description
Technical Field
The invention relates to the technical field of elevator devices, in particular to an elevator brake device.
Background
In the life of the modern, with the rapid development of cities, elevators are widely used by high buildings in various cities, but the accident of the elevators also comes with the high buildings. The elevator mainly comprises a car, a counterweight, a steel wire rope, a driving device and a braking system, wherein the car is suspended by the steel wire rope, and the steel wire rope penetrates through the driving device to be connected with the counterweight. When the elevator has an accident, the brake system automatically clamps the steel wire rope to brake the car. If the steel wire rope is broken, the brake system cannot brake the car, and safety accidents are caused.
The device that leads to braking system can't stop the car to the fracture takes place to wire rope has appeared in the market at present, and this type of device mainly divide into two types: (1) the brake device is installed in a track of the elevator car, and when an accident happens to the elevator, the brake device is started to brake the elevator car. Because the internal space of the track of the elevator car is very narrow, the device is required to have small volume, namely the volume of parts is required to be small, so that the device has high requirements on the processing precision of the parts and high manufacturing cost, and is inconvenient to popularize and apply; (2) the brake device is arranged in the elevator car, and the device is arranged in the elevator car and occupies the internal volume of the elevator car, so that the volume which can be effectively used in the elevator car is reduced, and the operation cost of the elevator is increased; (3) the parts of the device are usually welded and fixed inside the track of the elevator car or inside the elevator car, when the device breaks down, the parts are not convenient to detach for maintenance and replacement, and the device can only be replaced integrally, so that the cost is high.
Disclosure of Invention
The invention aims to solve the technical problem and provide an elevator brake device.
The invention is realized by the following technical scheme:
the elevator brake device is symmetrically arranged on two sides of the top of an elevator car and comprises a bottom plate 2, a sleeve 3, a spring 4, a brake block 5 and a brake detection device; one end of the spring 4 is connected with the bottom plate 2, the other end of the spring is connected with the brake block 5, the brake block 5 can be arranged in the sleeve 3, and the bottom plate 2 is connected with the sleeve 3; the brake detection device is arranged on the second side surface 313 of the sleeve 3 and comprises a battery 305, a motor 306, a connecting block, a starting pin 309, a control panel 311 and an acceleration sensor 312, wherein the battery 305, the motor 306, the control panel 311 and the acceleration sensor 312 are electrically connected in sequence; the first side surface 31 of the sleeve 3 is provided with a first opening 302, the third side surface 51 of the brake block 5 is provided with a second opening 52, the bottom plate 2 is connected with the sleeve 3, the sleeve 3 is a hollow cavity with openings at two ends, the brake block 5 can be arranged in the hollow cavity of the sleeve 3, and the second opening 52 can be communicated with the first opening 302; the third end part 53 of the brake block 5 is provided with a cylindrical cavity, and the outer diameter of the second end part 42 of the spring 4 is in interference fit with the inner diameter of the cylindrical cavity of the third end part 53 of the brake block 5; the rotating shaft of the motor 306, the connecting block and the starting pin 309 are sequentially connected, a first through hole 320 is formed in the second side 313 of the sleeve 3, and a second through hole 54 is formed in the fourth side 55 of the brake block 5; the starting pin 309 can sequentially pass through the first through hole 320 and the second through hole 54 and enter a cylindrical cavity of the third end 53 of the brake block 5; the sixth side 23 of the bottom plate 2 is provided with a first groove 24, and the outer diameter of the first end portion 41 of the spring 4 is in interference fit with the inner diameter of the first groove 24.
Said actuation pin 309 is perpendicular to the second side 313 of the sleeve 3; the connecting blocks comprise a first connecting block 307 and a second connecting block 308; the rotating shaft of the motor 306 is connected with a first connecting block 307, and the first connecting block 307, a second connecting block 308 and a starting pin 309 are sequentially connected; the second side surface 313 of the sleeve 3 is provided with a guide seat 310, the guide seat 310 is located above the first through hole 320 and is perpendicular to the second side surface 313, the top and the bottom of the guide seat 310 are both open, and the actuating pin 309 can penetrate through the top and the bottom of the guide seat 310, sequentially penetrates through the first through hole 320 and the second through hole 54, and enters into a cylindrical cavity at the third end 53 of the brake block 5.
Further, the distance between the second through hole 54 and the third end 53 is a first distance D1, the first distance D1 is 90-110mm, the distance between the second through hole 54 and the fourth end 56 of the brake block 5 is a second distance D2, the second distance D2 is 750mm, the length of the cylindrical cavity formed in the third end 53 is a first length L1, the first length L1 is greater than the first distance D1, the distance between the seventh end 318 of the sleeve 3 and the first through hole 320 of the sleeve 3 is a third distance D3, the third distance D3 is 310mm, the distance between the eighth end 319 of the sleeve 3 and the first through hole 320 of the sleeve 3 is a fourth distance D4, and the fourth distance D4 is 590 + 610 mm.
Further, the thickness of the bottom plate 2 is a first thickness TH1, the first thickness TH1 is 90-110mm, the depth of the first groove 24 of the bottom plate 2 is a first depth DE1, the first depth DE1 is 9-11mm, the natural state length of the spring 4 is a second length L2, and the second length L2 is 380-420 mm.
Further, the actuating pin 309 has a first height H1, the first height H1 is 80-100 mm; the depth of the actuating pin 309 penetrating through the second through hole 54 into the inner cylindrical cavity of the third end 53 of the brake block 5 is a second depth DE2, and the second depth DE2 is 10-20 mm; the height of the hollow inner cavity of the sleeve 3 is a second height H2, and the second height H2 is 130-150 mm; the thickness of the brake block 5 is a second thickness TH2, and the second thickness TH2 is 130-150 mm; the inner diameter of the cylindrical cavity in the third end 53 is a first inner diameter ID1, and the first inner diameter ID1 is 90-110 mm.
Further, the height of the battery 305 is a third height H3, the third height H3 is 55-75mm, the outer diameter of the motor 306 is a first outer diameter OD1, the first outer diameter OD1 is 30-50mm, the length of the first connecting block 307 is a third length L3, the third length L3 is 113 mm and 133mm, the length of the second connecting block 308 is a fourth length L4, the fourth length L4 is 30-50mm, the height of the guide seat 310 is a fourth height H4, and the fourth height H4 is 20-30 mm.
Further, the distance between the fifth end 316 of the first opening 302 and the seventh end 318 of the sleeve 3 is a fifth distance D5, and the fifth distance D5 is 290-310 mm; the distance between the sixth end 317 of the first opening 302 and the eighth end 319 of the sleeve 3 is a sixth distance D6, and the sixth distance D6 is 290-310 mm; the distance between the ninth end 521 of the second opening 52 and the third end 53 of the brake block 5 is a seventh distance D7, and the seventh distance D7 is equal to the first distance D1; the distance between the tenth end 522 of the second opening 52 and the fourth end 56 of the brake block 5 is an eighth distance D8, and the eighth distance D8 is 400 mm and 600 mm; the second opening 52 is spaced apart from the bottom of the brake block 5 by a ninth distance D9, the first opening 302 is spaced apart from the bottom surface of the hollow inner cavity of the sleeve 3 by a tenth distance D10, and the ninth distance D9 is equal to the tenth distance D10.
Further, the width of the brake block 5 is a first width W1, the internal width of the brake groove 1 is a second width W2, and the first width W1 is smaller than the second width W2.
Furthermore, a plurality of first screw holes 21 are symmetrically formed on two sides of the fifth side surface 22 of the bottom plate 2, a plurality of second screw holes 301 are correspondingly formed on two sides of the seventh end portion 318 of the sleeve 3, and screws respectively penetrate through the first screw holes 21 and the corresponding second screw holes 301 to connect and fix the bottom plate 2 and the sleeve 3.
Further, the bottom of the first side 31 of sleeve 3 sets up a plurality of first connecting sleeves 303, each first connecting sleeve 303 sets up third screw 304 respectively, the elevator car top sets up corresponding screw, and the screw passes third screw 304 and the corresponding screw of elevator car respectively, is connected sleeve 3 and elevator car fixedly.
Further, the model of the motor 306 is 40ST-M00130, and the model of the acceleration sensor 312 is MEAS 7204A.
Compared with the prior art, the invention has the following main beneficial effects: (1) the elevator braking device overcomes the technical bias of the prior art, the elevator braking devices are symmetrically arranged on the two sides of the top of the elevator car, and the overall height of the elevator braking devices is small, so that the effective running space of the elevator car is not influenced. Because the whole length and the width of the elevator car are large, the elevator brake device is arranged at the top of the elevator car, the limit on the length and the width of the elevator brake device is small, and therefore, the limit on the size of the elevator brake device is small, the requirement on the processing precision of parts of the elevator brake device can be reduced, the manufacturing cost is reduced, and the elevator brake device is convenient to popularize and apply. (2) The elevator brake device is arranged at the top of the elevator car, is positioned outside the elevator car, does not occupy the internal space of the elevator car, does not reduce the internal effective use volume of the elevator car, and does not influence the running cost of the elevator. (3) The elevator braking device overcomes the technical bias of the prior art, the elevator braking device is integrally arranged outside the elevator car, the elevator braking device is integrally detachably connected with the elevator car, and parts in the elevator braking device are not fixedly connected with the elevator car or an elevator car track. The difference of the structure of the invention from the prior art is mainly as follows: the brake block is provided with a sleeve, a brake block, a spring, a bottom plate, a starting pin, a first connecting block and a second connecting block, wherein a cylindrical cavity is formed in the end part of the brake block, the sleeve is a hollow cavity with openings at two ends, and a groove is formed in the side surface of the bottom plate. The spring and the brake block can be detachably connected, and the spring and the bottom plate can be detachably connected; the brake block and the sleeve can be detachably connected, and the bottom plate and the sleeve can be detachably connected; the motor can be dismantled with first connecting block and be connected, and first connecting block can be dismantled with the second connecting block and be connected, and the second connecting block can be dismantled with the start pin and be connected. When the elevator brake device breaks down, the parts in the elevator brake device can be detached for maintenance and replacement, the whole elevator brake device is not required to be replaced, and the maintenance cost is saved. (4) When the running acceleration of the elevator car exceeds a preset safety value, the control panel sends a signal to the motor to enable the motor to rotate and drive the first connecting block and the second connecting block to rotate respectively, the second connecting block rotates to provide vertical upward pulling force for the starting pin, the starting pin is separated from the second end part of the spring, the spring is changed from a compression state to a natural state and generates pushing force in the horizontal direction, and the brake block is ejected out of the brake groove from the sleeve under the action of the pushing force in the horizontal direction to enable the brake block to clamp the brake groove, so that the braking of the elevator car is realized, the falling accident of the elevator car is prevented, and the safety of personnel in the elevator car is ensured; (5) the invention has the advantages of convenient and safe use, simple structure, low manufacturing cost and market application prospect.
Drawings
FIG. 1 is a schematic view of the structure of the present invention
FIG. 2 is a schematic view of the structure of the bottom plate 2 of the present invention
FIG. 3 is a partial schematic view of the brake detection device of the present invention
FIG. 4 is a schematic view of the present invention in operation
FIG. 5 is a schematic view of the present invention mounted on the top of an elevator car
In the figure:
1-a brake groove; 2-a bottom plate; 21-a first screw hole; 22-fifth side; 23-a sixth side; 24-a first groove; 3-a sleeve; 301-a second screw hole; 302-a first opening; 303-a first coupling sleeve; 304-a third screw hole; 305-a battery; 306-a motor; 307-first connection block; 308-a second connection block; 309-actuating pin; 310-a guide seat; 31-a first side; 311-control panel; 312-an acceleration sensor; 313-a second side; 314-wire chase; 315-seventh side; 316-fifth end; 317-sixth end; 318-seventh end; 319-eighth end; 320-a first via; 4-a spring; 41-a first end portion; 42-a second end; 5, a brake block; 51-a third side; 52-a second opening; 521-a ninth end; 522-tenth end portion; 53-third end; 54-a second via; 55-fourth side; 56-fourth end;
Detailed Description
The invention is described in further detail below with reference to the drawings.
As shown in fig. 1 to 3, the elevator brake device is symmetrically arranged on two sides of the top of an elevator car and comprises a bottom plate 2, a sleeve 3, a spring 4, a brake block 5 and a brake detection device; one end of the spring 4 is connected with the bottom plate 2, the other end of the spring is connected with the brake block 5, the brake block 5 can be arranged in the sleeve 3, and the bottom plate 2 is connected with the sleeve 3;
specifically, the bottom plate 2 includes a fifth side 22 and a sixth side 23, the fifth side 22 is far away from the sleeve 3, and the sixth side 23 is close to the sleeve 3; the sleeve 3 comprises a first side 31, a second side 313, a seventh end 318 and an eighth end 319; the first side 31 is adjacent to the first coupling sleeve 303; the first side 31 is provided with a first opening 302, the first opening 302 comprises a fifth end 316 and a sixth end 317, the fifth end 316 is close to the bottom plate 2, and the sixth end 317 is far from the bottom plate 2; the second side surface 313 is the top surface of the sleeve 3; the two ends of the sleeve 3 are a seventh end 318 and an eighth end 319 respectively, the seventh end 318 is close to the bottom plate 2, and the eighth end 319 is far from the bottom plate 2; the first connection block 307 comprises a seventh side 315, the seventh side 315 being close to the second side 313 of the sleeve 3; the spring 4 comprises a first end portion 41 and a second end portion 42, the first end portion 41 is close to the bottom plate 2, and the second end portion 42 is far away from the bottom plate 2; the brake block 5 comprises a third side surface 51, a fourth side surface 55, a third end part 53 and a fourth end part 56; the third side 51 is close to the first connecting sleeve 303; the third side 51 is provided with a second opening 52, the second opening 52 includes a ninth end 521 and a tenth end 522, the ninth end 521 is close to the bottom plate 2, and the tenth end 522 is far away from the bottom plate 2; the fourth side surface 55 is the top surface of the brake block 5; the two ends of the brake block 5 are respectively a third end 53 and a fourth end 56, the third end 53 is close to the bottom plate 2, and the fourth end 56 is far away from the bottom plate 2.
The brake detection device is arranged on the second side surface 313 of the sleeve 3, the brake detection device comprises a battery 305, a motor 306, a first connecting block 307, a second connecting block 308, a starting pin 309, a guide seat 310, a control panel 311 and an acceleration sensor 312, and the battery 305, the motor 306, the control panel 311 and the acceleration sensor 312 are electrically connected in sequence; the first side surface 31 of the sleeve 3 is provided with a first opening 302, the third side surface 51 of the brake block 5 is provided with a second opening 52, the bottom plate 2 is connected with the sleeve 3, the sleeve 3 is a hollow cavity with openings at two ends, the brake block 5 can be arranged in the hollow cavity of the sleeve 3, and the second opening 52 can be communicated with the first opening 302; the third end part 53 of the brake block 5 is provided with a cylindrical cavity, and the outer diameter of the second end part 42 of the spring 4 is in interference fit with the inner diameter of the cylindrical cavity of the third end part 53 of the brake block 5; the rotating shaft of the motor 306 is connected with a first connecting block 307, the first connecting block 307, a second connecting block 308 and a starting pin 309 are sequentially connected, and the starting pin 309 is perpendicular to a second side surface 313 of the sleeve 3; the top and the bottom of the guide seat 310 are both open, and a first through hole 320 is formed in the second side surface 313 of the sleeve 3 corresponding to the bottom of the guide seat 310; the fourth side 55 of the brake block 5 is provided with a second through hole 54; the starting pin 309 can penetrate through the top and the bottom of the guide seat 310, sequentially pass through the first through hole 320 and the second through hole 54, and enter a cylindrical cavity of the third end 53 of the brake block 5; the sixth side 23 of the bottom plate 2 is provided with a first groove 24, and the outer diameter of the first end portion 41 of the spring 4 is in interference fit with the inner diameter of the first groove 24.
Specifically, as shown in fig. 5, the elevator brake devices are symmetrically arranged on two sides of the top of the elevator car.
Specifically, the first opening 302 is communicated with the hollow cavity of the sleeve 3, the second opening 52 is communicated with the cylindrical cavity of the third end portion 53, and the first opening 302 and the second opening 52 can be communicated.
Specifically, the outer diameter of the second end 42 of the spring 4 is in interference fit with the inner diameter of the cylindrical cavity of the third end 53 of the brake block 5, and the coupling holding force of the second end 42 of the spring 4 and the cylindrical cavity of the third end 53 of the brake block 5 is large, so that the second end 42 of the spring 4 can be stably connected with the third end 53 of the brake block 5.
Specifically, the outer diameter of the first end 41 of the spring 4 is in interference fit with the inner diameter of the first groove 24, and the coupling holding force of the first end 41 of the spring 4 and the first groove 24 of the base plate 2 is large, so that the first end 41 of the spring 4 can be stably connected with the first groove 24 of the base plate 2.
Specifically, the second end 42 of the spring 4 is first installed in the cylindrical cavity of the third end 53 of the brake block 5, so that the second end 42 of the spring 4 is located right below the second through hole 54 of the brake block 5, and at this time, the actuating pin 309 passes through the first through hole 320 and is located in the hollow cavity of the sleeve 3. Then, the spring 4 is installed in the hollow cavity of the sleeve 3 together with the brake block 5, and then a horizontal pushing force is applied to the fourth end 56 of the brake block 5, so that the brake block 5 moves toward the actuating pin 309. When the brake block 5 moves to the position where the second opening 52 can communicate with the first opening 302, the user can insert an iron rod through the first opening 302 and the second opening 52, so that the iron rod is perpendicular to the second opening 52, and the iron rod acts on the ninth end 521 of the second opening 52, and by applying a horizontal external force to the iron rod, the brake block 5 moves in the horizontal direction toward the actuating pin 309. When the iron rod touches the starting pin 309, the second through hole 54 is located right below the starting pin 309, and at this time, the starting pin 309 sequentially passes through the first through hole 320 of the sleeve 3 and the second through hole 54 of the brake block 5, and the second end 42 of the spring 4 is clamped. Then, the first end 41 of the spring 4 is installed in the first groove 24 of the base plate 2, so that the first end 41 of the spring 4 is connected and fixed with the first groove 24. Finally, the bottom plate 2 and the sleeve 3 are fixed by screws.
Furthermore, the distance between the second through hole 54 and the third end 53 is a first distance D1, the first distance D1 is 90-110mm, the distance between the second through hole 54 and the fourth end 56 of the brake block 5 is a second distance D2, the second distance D2 is 730-750mm, the length of the cylindrical cavity formed in the third end 53 is a first length L1, and the first length L1 is greater than the first distance D1.
Further, the distance between the seventh end 318 of the sleeve 3 and the first through hole 320 of the sleeve 3 is a third distance D3, and the third distance D3 is 290 mm and 310 mm; the distance between the eighth end 319 of the sleeve 3 and the first through hole 320 of the sleeve 3 is a fourth distance D4, and the fourth distance D4 is 590-610 mm.
Further, the thickness of the bottom plate 2 is a first thickness TH1, and the first thickness TH1 is 90-110 mm; the depth of the first groove 24 of the bottom plate 2 is a first depth DE1, and the first depth DE1 is 9-11 mm.
Further, the natural state length of the spring 4 is a second length L2, and the second length L2 is 380-420 mm.
Specifically, after the bottom plate 2 is fixedly connected to the sleeve 3, the length of the spring 4 is a third length L3, the third length L3 is equal to the first depth DE1 plus a third distance D3, and the third length L3 of the spring 4 is smaller than the natural second length L2 of the spring 4, so that the spring 4 is in a compressed state.
Specifically, the motor 306 is mounted horizontally on top of the battery 305.
Specifically, the height of the actuating pin 309 is a first height H1, and the first height H1 is 80-100 mm.
Specifically, the depth of the actuating pin 309 passing through the second through hole 54 into the inner cylindrical cavity of the third end portion 53 of the brake block 5 is a second depth DE2, and the second depth DE2 is 10-20 mm.
Specifically, the height of the hollow inner cavity of the sleeve 3 is a second height H2, and the second height H2 is 130 mm and 150 mm.
Specifically, the thickness of the brake block 5 is a second thickness TH2, and the second thickness TH2 is 150 mm.
Specifically, the brake block 5 and the sleeve 3 are in clearance fit.
Specifically, the inner diameter of the cylindrical cavity inside the third end portion 53 is the first inner diameter I D1, and the first inner diameter ID1 is 90-110 mm.
Specifically, the height of the battery 305 is a third height H3, the third height H3 is 55-75mm, the outer diameter of the motor 306 is a first outer diameter OD1, the first outer diameter OD1 is 30-50mm, the length of the first connecting block 307 is a third length L3, the third length L3 is 113-133mm, the length of the second connecting block 308 is a fourth length L4, the fourth length L4 is 30-50mm, the height of the guide seat 310 is a fourth height H4, and the fourth height H4 is 20-30 mm.
Specifically, the distance between the fifth end 316 of the first opening 302 and the seventh end 318 of the sleeve 3 is a fifth distance D5, and the fifth distance D5 is 290-310 mm; the distance between the sixth end 317 of the first opening 302 and the eighth end 319 of the sleeve 3 is a sixth distance D6, and the sixth distance D6 is 290-310 mm.
Specifically, the distance between the ninth end 521 of the second opening 52 and the third end 53 of the brake block 5 is a seventh distance D7, and the seventh distance D7 is equal to the first distance D1; the distance between the tenth end 522 of the second opening 52 and the fourth end 56 of the brake block 5 is an eighth distance D8, and the eighth distance D8 is 400 mm and 600 mm.
Specifically, the second opening 52 is spaced apart from the bottom of the brake block 5 by a ninth distance D9, the first opening 302 is spaced apart from the bottom surface of the hollow inner cavity of the sleeve 3 by a tenth distance D10, and the ninth distance D9 is equal to the tenth distance D10, so that the second opening 52 and the first opening 302 can communicate after the brake block 5 is installed in the hollow inner cavity of the sleeve 3.
Specifically, the user can insert an iron stick through the second opening 52, perpendicular to the second opening 52, and act on the ninth end 521 of the second opening 52. By applying a horizontal external force to the iron rod, the brake block 5 and the spring 4 are moved in the horizontal direction toward the actuating pin 309. The seventh distance D7 is equal to the first distance D1 so that the second end 42 of the spring 4 is directly below the second through hole 54 when the iron rod touches the second end 42 of the spring 4.
Specifically, after the first end 41 of the spring 4 is received in the first groove 24 of the base plate 2, the base plate 2 and the sleeve 3 are fixed by screwing. The actuating pin 309 penetrates the top and bottom of the guide seat 310 and can sequentially penetrate the first through hole 320 of the sleeve 3 and the second through hole 54 of the brake block 5, and the actuating pin 309 can clamp the second end 42 of the spring 4, so that the spring 4 is in a compressed state.
FIG. 4 is a schematic diagram of the present invention in operation. Specifically, the acceleration sensor 312 is used to detect elevator car acceleration and send elevator car acceleration measurements to the control panel 311. When the measured value of the acceleration of the elevator car is greater than the preset safety value, the control panel 311 sends a signal to the motor 306, so that the motor 306 works, the motor 306 rotates and drives the first connecting block 307 and the second connecting block 308 to rotate respectively, and when the second connecting block 308 rotates to a position where the seventh side 315 and the second side 313 form an included angle of 45 degrees, a vertically upward pulling force can be provided for the starting pin 309, so that the starting pin 309 moves vertically upward. After the starting pin 309 moves vertically upwards until the spring 4 is completely separated from the second end 42 of the spring 4, the spring 4 changes from the compressed state to the natural state, the spring 4 generates thrust towards the direction of the brake groove 1 on the brake block 5 in the horizontal direction, so that the brake block 5 is ejected out of the sleeve 3 into the brake groove 1, and the fourth end 56 of the brake block 5 is clamped in the brake groove 1, thereby realizing the braking of the elevator car.
Preferably, the spring 4 has a first spring constant K1, and the first spring constant K1 is 294N/mm or more.
Preferably, the spring 4 is deformed by a first deformation amount X1, and the first deformation amount X1 is 50mm or more.
Preferably, the elastic force generated by the spring 4 is a first elastic force F1, and the first elastic force F1 is equal to a first elastic coefficient K1 multiplied by a first deformation amount X1. Therefore, the first elastic force F1 is 14700N or more.
Further, the brake block 5 is T-shaped.
Specifically, the brake block 5 is T-shaped, so that the contact area between the fourth end portion 56 of the brake block 5 and the inside of the brake groove 1 can be increased, the friction force between the surface of the fourth end portion 56 and the inside surface of the brake groove 1 can be increased, and the braking force of the braking system can be increased.
Preferably, the material of the surface of the fourth end 56 of the brake block 5 and the material of the inner surface of the brake groove 1 are high manganese alloys, the dynamic friction factor between the surface of the fourth end 56 of the brake block 5 and the inner surface of the brake groove 1 is a first dynamic friction factor u, and the first dynamic friction factor u is 0.6-0.9.
The vertical frictional force generated between the surface of the fourth end 56 of the brake block 5 of each elevator brake apparatus and the inner surface of the brake groove 1 is a first frictional force F which is equal to a first elastic force F1 multiplied by a dynamic friction factor u. Therefore, the first frictional force F is 8820N or more.
Specifically, the elevator braking devices are symmetrically arranged on two sides of the top of the elevator car, namely two elevator braking devices are arranged on the top of the elevator car. The vertical friction force generated by each elevator brake device is more than 8820N, so the vertical friction force generated by the two elevator brake devices is more than 17640N.
Typically the elevator has a full load weight within 1300kg and the resulting gravity is within 12740N. Therefore, the vertical friction force generated by the two elevator braking devices is larger than the gravity force when the elevator is fully loaded. Therefore, the elevator brake device can realize the braking of the elevator car and ensure the safety of personnel in the elevator car.
Specifically, the motor 306 rotates and drives the first connecting block 307 and the second connecting block 308 to rotate, and when the second connecting block 308 rotates until the seventh side 315 forms a 45-degree included angle with the second side 313, the control panel 311 sends a signal to the motor 306, so that the motor 306 stops rotating.
Specifically, the rotating shaft of the motor 306 is centrally connected to the first connecting block 307.
Specifically, the motor 306 is a servo motor.
Specifically, the width of the brake block 5 is a first width W1, the inner width of the brake groove 1 is a second width W2, and the first width W1 is smaller than the second width W2.
Specifically, the first width W1 is smaller than the second width W2, so that the fourth end 56 of the brake block 5 can completely enter the inside of the brake groove 1 and fully contact with the inside of the brake groove 1, and the braking effect of the braking system is better.
Furthermore, a plurality of first screw holes 21 are symmetrically formed on two sides of the fifth side surface 22 of the bottom plate 2, a plurality of second screw holes 301 are correspondingly formed on two sides of the seventh end portion 318 of the sleeve 3, and screws respectively penetrate through the first screw holes 21 and the corresponding second screw holes 301 to connect and fix the bottom plate 2 and the sleeve 3.
Specifically, the screws respectively pass through the first screw hole 21 and the second screw hole 301 to connect and fix the base plate 2 and the sleeve 3.
Further, the bottom of the first side 31 of sleeve 3 sets up a plurality of first connecting sleeves 303, each first connecting sleeve 303 sets up third screw 304 respectively, the elevator car top sets up corresponding screw, and the screw passes third screw 304 and the corresponding screw of elevator car respectively, is connected sleeve 3 and elevator car fixedly.
Specifically, when the braking system breaks down, can dismantle sleeve 3 from the elevator car, conveniently maintain or change braking system.
In particular, the second side 313 of the sleeve 3 is provided with a raceway 314 for receiving a cable.
Further, the model of the motor 306 is 40ST-M00130, and the model of the acceleration sensor 312 is MEAS 7204A.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications and equivalent changes made according to the technical spirit of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An elevator brake device, its characterized in that: the elevator brake devices are symmetrically arranged on two sides of the top of the elevator car and comprise a bottom plate (2), a sleeve (3), a spring (4), a brake block (5) and a brake detection device; one end of the spring (4) is connected with the bottom plate (2), the other end of the spring is connected with the brake block (5), the brake block (5) can be arranged in the sleeve (3), and the bottom plate (2) is connected with the sleeve (3); the brake detection device is arranged on the second side surface (313) of the sleeve (3), and comprises a battery (305), a motor (306), a connecting block, a starting pin (309), a control panel (311) and an acceleration sensor (312), wherein the battery (305), the motor (306), the control panel (311) and the acceleration sensor (312) are electrically connected in sequence; a first opening (302) is formed in a first side face (31) of the sleeve (3), a second opening (52) is formed in a third side face (51) of the brake block (5), the bottom plate (2) is connected with the sleeve (3), the sleeve (3) is a hollow cavity with two open ends, the brake block (5) can be installed in the hollow cavity of the sleeve (3), and the second opening (52) can be communicated with the first opening (302); a cylindrical cavity is formed in the third end portion (53) of the brake block (5), and the outer diameter of the second end portion (42) of the spring (4) is in interference fit with the inner diameter of the cylindrical cavity of the third end portion (53) of the brake block (5); the rotating shaft of the motor (306), the connecting block and the starting pin (309) are sequentially connected, a first through hole (320) is formed in the second side surface (313) of the sleeve (3), and a second through hole (54) is formed in the fourth side surface (55) of the brake block (5); the starting pin (309) can sequentially pass through the first through hole (320) and the second through hole (54) and enter a cylindrical cavity of the third end part (53) of the brake block (5); a first groove (24) is formed in the sixth side face (23) of the bottom plate (2), and the outer diameter of the first end portion (41) of the spring (4) is in interference fit with the inner diameter of the first groove (24);
the first end part (41) of the spring (4) is connected with the bottom plate (2), the second end part (42) is connected with the brake block (5), and the starting pin (309) sequentially penetrates through the first through hole (320) of the sleeve (3) and the second through hole (54) of the brake block (5) and clamps the second end part (42) of the spring (4) to enable the spring (4) to be in a compressed state; when acceleration sensor (312) detect elevator car acceleration and are greater than preset safe value, control panel (311) send signal to motor (306), make motor (306) work, motor (306) rotate and drive the connecting block respectively, start round pin (309) rotate, and provide vertical ascending pulling force for start round pin (309), after start round pin (309) vertical upward movement to completely separate with spring (4) second tip (42), spring (4) become natural state from the compression state, spring (4) produce the thrust towards brake groove (1) direction at the horizontal direction to brake block (5), make inside brake block (5) pop out to brake groove (1) from sleeve (3), make brake block (5) fourth tip (56) block brake groove (1), thereby realize elevator car braking.
2. The elevator brake of claim 1, wherein the actuating pin (309) is perpendicular to the second side (313) of the sleeve (3); the connecting blocks comprise a first connecting block (307) and a second connecting block (308); the rotating shaft of the motor (306) is connected with a first connecting block (307), and the first connecting block (307), a second connecting block (308) and a starting pin (309) are sequentially connected; sleeve (3) second side (313) sets up guide holder (310), guide holder (310) are located first through-hole (320) top and perpendicular with second side (313), the equal opening in guide holder (310) top and bottom, start round pin (309) can run through guide holder (310) top and bottom, pass first through-hole (320) and second through-hole (54) in proper order to enter brake block (5) third tip (53) cylindrical cavity.
3. The elevator brake device according to claim 1, wherein the distance between the second through hole (54) and the third end (53) is a first distance D1, the first distance D1 is 90-110mm, the distance between the second through hole (54) and the fourth end (56) of the brake block (5) is a second distance D2, the second distance D2 is 730-750mm, the length of the cylindrical cavity formed by the third end (53) is a first length L1, the first length L1 is greater than the first distance D1, the distance between the seventh end (318) of the sleeve (3) and the first through hole (320) of the sleeve (3) is a third distance D3, the third distance D3 is 290-310mm, the distance between the eighth end (319) of the sleeve (3) and the first through hole (320) of the sleeve (3) is a fourth distance D4, and the fourth distance D4 is 590 mm.
4. The elevator brake device according to claim 1, wherein the thickness of the bottom plate (2) is a first thickness TH1, the first thickness TH1 is 90-110mm, the depth of the first groove (24) of the bottom plate (2) is a first depth DE1, the first depth DE1 is 9-11mm, the natural state length of the spring (4) is a second length L2, and the second length L2 is 380-420 mm.
5. The elevator brake device according to claim 1, wherein: the actuating pin (309) has a first height H1, the first height H1 being 80-100 mm; the depth of the actuating pin (309) passing through the second through hole (54) into the inner cylindrical cavity of the third end (53) of the brake block (5) is a second depth DE2, the second depth DE2 is 10-20 mm; the height of the hollow inner cavity of the sleeve (3) is a second height H2, and the second height H2 is 130-150 mm; the thickness of the brake block (5) is a second thickness TH2, and the second thickness TH2 is 130 mm and 150 mm; the third end portion (53) has an inner cylindrical cavity with an inner diameter ID1, the first inner diameter ID1 being 90-110 mm.
6. The elevator brake device according to claim 2, wherein the height of the battery (305) is a third height H3, the third height H3 is 55-75mm, the outer diameter of the motor (306) is a first outer diameter OD1, the first outer diameter OD1 is 30-50mm, the length of the first connecting block (307) is a third length L3, the third length L3 is 113-133mm, the length of the second connecting block (308) is a fourth length L4, the fourth length L4 is 30-50mm, the height of the guide seat (310) is a fourth height H4, and the fourth height H4 is 20-30 mm.
7. The elevator brake device according to claim 1, wherein: the distance between the fifth end (316) of the first opening (302) and the seventh end (318) of the sleeve (3) is a fifth distance D5, and the fifth distance D5 is 310 mm; the distance between the sixth end (317) of the first opening (302) and the eighth end (319) of the sleeve (3) is a sixth distance D6, and the sixth distance D6 is 290 mm and 310 mm; the distance between the ninth end (521) of the second opening (52) and the third end (53) of the brake block (5) is a seventh distance D7, and the seventh distance D7 is equal to the first distance D1; the distance between the tenth end (522) of the second opening (52) and the fourth end (56) of the brake block (5) is an eighth distance D8, and the eighth distance D8 is 400 mm and 600 mm; the distance between the second opening (52) and the bottom of the brake block (5) is a ninth distance D9, the distance between the first opening (302) and the bottom surface of the hollow inner cavity of the sleeve (3) is a tenth distance D10, and the ninth distance D9 is equal to the tenth distance D10.
8. An elevator brake apparatus according to claim 1, 2, 3, 4, 5, 6 or 7, wherein: the width of the brake block (5) is a first width W1, the internal width of the brake groove (1) is a second width W2, and the first width W1 is smaller than the second width W2.
9. An elevator brake apparatus according to claim 1, 2, 3, 4, 5, 6 or 7, wherein: a plurality of first screw holes (21) are symmetrically formed in two sides of a fifth side surface (22) of the bottom plate (2), a plurality of second screw holes (301) are correspondingly formed in two sides of a seventh end portion (318) of the sleeve (3), and screws respectively penetrate through the first screw holes (21) and the corresponding second screw holes (301) to connect and fix the bottom plate (2) and the sleeve (3); the utility model discloses a set up sleeve (3) first side (31) bottom and set up a plurality of first connecting sleeve (303), each first connecting sleeve (303) sets up third screw (304) respectively, the elevator car top sets up and corresponds the screw, and the screw passes third screw (304) and elevator car respectively and corresponds the screw, is connected sleeve (3) and elevator car fixedly.
10. An elevator brake apparatus according to claim 1, 2, 3, 4, 5, 6 or 7, wherein: the model of the motor (306) is 40ST-M00130, and the model of the acceleration sensor (312) is MEAS 7204A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811591125.0A CN109650208B (en) | 2018-12-25 | 2018-12-25 | Elevator brake device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811591125.0A CN109650208B (en) | 2018-12-25 | 2018-12-25 | Elevator brake device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109650208A CN109650208A (en) | 2019-04-19 |
| CN109650208B true CN109650208B (en) | 2020-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811591125.0A Expired - Fee Related CN109650208B (en) | 2018-12-25 | 2018-12-25 | Elevator brake device |
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| CN (1) | CN109650208B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| HU172582B (en) * | 1971-03-11 | 1978-10-28 | Istvan Balint | Collecting control for elevators on semicondur devices |
| ES2129480T3 (en) * | 1993-10-18 | 1999-06-16 | Inventio Ag | BRAKING SAFETY DEVICE FOR ELEVATOR CABINS. |
| JP3532349B2 (en) * | 1996-06-11 | 2004-05-31 | 三菱電機株式会社 | Elevator safety equipment |
| JPH10338434A (en) * | 1997-06-04 | 1998-12-22 | Hitachi Ltd | Hydraulic elevator |
| AT501326B1 (en) * | 2005-01-21 | 2008-06-15 | Wittur Gmbh | EMERGENCY BRAKING EQUIPMENT FOR A LIFT CABIN |
| JP5371718B2 (en) * | 2009-12-02 | 2013-12-18 | 株式会社日立製作所 | Elevator |
-
2018
- 2018-12-25 CN CN201811591125.0A patent/CN109650208B/en not_active Expired - Fee Related
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| CN109650208A (en) | 2019-04-19 |
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