CN103663038B - Bidirectional braking device - Google Patents
Bidirectional braking device Download PDFInfo
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- CN103663038B CN103663038B CN201310697310.9A CN201310697310A CN103663038B CN 103663038 B CN103663038 B CN 103663038B CN 201310697310 A CN201310697310 A CN 201310697310A CN 103663038 B CN103663038 B CN 103663038B
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- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 23
- 241001656951 Protheca Species 0.000 claims description 15
- 230000005484 gravity Effects 0.000 claims description 3
- 125000003003 spiro group Chemical group 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 13
- 238000001035 drying Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
Bidirectional braking device of the present invention relates to a kind of elevator car braking apparatus, particularly relates to a kind of brake equipment of uplink and downlink bi-directional braking.Its objective is in order to provide a kind of good braking effect, cost-saving, can the bidirectional braking device of up braking and descending braking.Bidirectional braking device of the present invention is connected with brake safe rope by utilizing joystick.When needs are braked, safety rope pulls joystick that front square shaft and rear axis are rotated simultaneously, front safety tongs and rear safety tongs is braked simultaneously, substantially increases braking effect and insensitivity.And only need a safety rope to control joystick, save the cost of safety rope.By front axle and rear shaft drying safety tongs, be there is up braking and descending braking function simultaneously, enable the up braking of the present invention and descending braking.
Description
Technical field
The present invention relates to a kind of elevator car braking apparatus, particularly relate to a kind of brake equipment of uplink and downlink bi-directional braking.
Background technology
The safety catch of existing domestic and international production is only provided with safety tongs in the side of lift car usually, provide braking force convenient like this, but braking effect is not good.If install safety tongs in lift car both sides, then permitted to want some safety ropes traction safety tongs, along with the lifting of safety rope cost, cost also improves greatly.And when elevator run downwards exceed command speed time; the lift power that velocity limiter produces drives the safety tongs device braking be installed on car; but existing safety tongs device can only play safety guard-safeguard effect to downward overspeed elevator; do not have safety guard-safeguard effect to upwards overspeed elevator, this runs elevator and leaves potential safety hazard.
Summary of the invention
The technical problem to be solved in the present invention be to provide a kind of good braking effect, cost-saving, can the bidirectional braking device of up braking and descending braking.
Bidirectional braking device of the present invention, comprises fore shell, front square shaft portion, joystick, front safety tongs, front square shaft connecting rod, long connecting rod, back cover, rear axis portion, rear safety tongs and rear axis connecting rod.Front square shaft portion is provided with in described fore shell.Described front square shaft portion comprises front square shaft, right bearing, left bearing, front upper lever, front lower lever and " Z " template seat.The axis of described front square shaft is left and right directions, and front square shaft is fixed by right bearing and left bearing and fore shell.The cross-sectional interior of described right bearing and left bearing is square opening.Described square opening matches with square shaft cross-sectional plane, and the cross-sectional plane outside of right bearing and left bearing is circular.The bearing hole matching form of described circle and fore shell closes, and right bearing is fixedly connected with front square shaft with left bearing.Described right bearing periphery is provided with front lower lever.The rear portion of described front lower lever is flexibly connected with right bearing, and front lower lever is positioned at fore shell inside, and front lower lever is fore-and-aft direction, and the middle part of front lower lever is fixed with front lower nose bar.Described front lower nose bar is vertical with front upper lever, and the right side of front lower nose bar is fixedly connected with the left side of front lower lever, and the front portion of front lower lever is provided with front lower bearing pin.Described front lower bearing pin is fixedly connected with front lower lever, and front lower bearing pin is left and right directions.The rear portion of described front upper lever is flexibly connected with left bearing, and front upper lever is positioned at fore shell inside, and front upper lever is fore-and-aft direction, and the middle part of front upper lever is fixed with front upper nose bar.Described front upper nose bar is vertical with front upper lever, and the left side of front upper nose bar is fixedly connected with the right side of front upper lever, and the front portion of front upper lever is provided with front upper pin.Described front upper pin is fixedly connected with front upper lever, and front upper pin is left and right directions." Z " template seat is provided with between described front upper lever and front lower lever.Described " Z " template seat is fixedly connected with front square shaft, and " Z " template seat is fixedly connected with connecting panel right part.Described connecting panel is left and right directions, and the front upper side of connecting panel left side is provided with action plate in front left.In described front left, the right side of action plate is fixedly connected with the left side of connecting panel, and in front left, action plate is positioned at directly over front upper nose bar, and the front downside of connecting panel left side is provided with action plate under front right.Under described front right, the left side of action plate is fixedly connected with the right side of connecting panel, and under front right, action plate is positioned at immediately below front lower nose bar.Fore shell is fixedly connected with front safety tongs by gim peg.Described front safety tongs comprises upper casing, lower casing, left shell, right shell, right pull bar, right detent, right needle roller panel seat and right needle roller bearing plate.Described upper casing is provided with upper casing U hole, and lower casing is provided with lower casing U hole.Described upper casing U hole and lower casing U hole inner sleeve have cage guide, also comprise left lever, left detent, roll left pin holder and the needle plate that rolls left.The bottom of described right pull bar is fixedly connected with the upper surface of right detent through the right slotted hole of upper casing.The described top of right pull bar is fixedly connected with the bottom of right connecting rod, and right connecting rod top is provided with the cross through hole of left and right directions.Front lower bearing pin is provided with, cross through hole and front lower bearing pin free-running fit in described cross through hole.The length of described front upper pin is greater than the thickness of right connecting rod.The right slotted hole of described upper casing is left and right directions elongated hole.Described right detent comprises pin, disc spring and disc spring pin on right Brake Block, right slipper, right braking guide rail, right Brake Block projection, right Brake Block.The bottom of described right pull bar is fixedly connected with the upper surface of right Brake Block.The left side of described right Brake Block is fixed with right slipper.The top, right side of described right Brake Block is provided with right Brake Block projection.The top, left side of described right braking guide rail is provided with the upper groove coordinated with right Brake Block projection.Described upper groove and right Brake Block projection left and right directions free-running fit.The outer face of described upper groove is provided with slotted hole on guide rail.On described guide rail, slotted hole is slotted hole in left-right direction.Described right Brake Block is sold and is fixedly connected with right Brake Block projection through slotted hole on guide rail, on right Brake Block, pin is flexibly connected with slotted hole on guide rail.Under described right Brake Block lower convexity, low groove, right Brake Block downside pin, guide rail, slotted hole and right Brake Block projection, upper groove, right Brake Block are sold, slotted hole is symmetrical up and down on guide rail.Disc spring is clamped in the described left side of right braking guide rail and the right side of right Brake Block.Described disc spring internal sleeve has disc spring pin.The right part of described disc spring pin is fixedly connected with right braking guide rail, and the left part of disc spring pin is flexibly connected with right slipper through right Brake Block.Described disc spring pin left part is provided with plunger, and right slipper is provided with the counterbore closed with plunger matching form, and the gap d 1 between the left side of plunger and right slipper is greater than the gap between right Brake Block projection and upper groove.The right side of described right braking guide rail has a down dip to the right from upper left, is matched by the left side of right needle roller bearing plate with right needle roller panel seat in the right side of right braking guide rail.Described right needle roller bearing plate is provided with needle roller.Described needle roller fore-and-aft direction is placed, and needle roller is multiple along plate length direction array.The right side of described right needle roller panel seat is vertically arranged.Described right needle roller panel seat is fixedly connected with right shell.Described right detent is identical with shape with the structure of left detent, and right detent and left detent Central Symmetry, the level height of left detent is higher than right detent.Matched with the right side of the pin holder that rolls left by the needle plate that rolls left in the left side of described left detent.The left side of the described pin holder that rolls left is fixedly connected with left shell, the bottom of left lever is fixedly connected with the upper surface of left detent through the left slotted hole of upper casing, the top of left lever is fixedly connected with the bottom of left connecting rod, and left connecting rod top is provided with the cross through hole of left and right directions.Front upper pin is provided with, cross through hole and front upper pin free-running fit in described cross through hole.The length of described front upper pin is greater than the thickness of left connecting rod.The left slotted hole of described upper casing is left and right directions elongated hole.The top of the described needle plate that rolls left is greater than the length of left detent upper surface to the left and right directions projector distance of cage guide, and the bottom of the needle plate that rolls left is less than the length of left detent lower surface to the left and right directions projector distance of cage guide.The top of described right needle roller bearing plate is less than the length of right detent upper surface to the left and right directions projector distance of cage guide, and the bottom of right needle roller bearing plate is greater than the length of right detent lower surface to the left and right directions projector distance of cage guide.Retracing spring is provided with in fore shell.Described retracing spring top is fixedly connected with fore shell top, and retracing spring bottom is fixedly connected with front upper lever, and the pulling force of retracing spring is greater than the gravity of left detent.Described fore shell, front square shaft portion, front safety tongs are identical with the planform of back cover, rear axis portion, rear safety tongs, symmetrical before and after fore shell, front square shaft portion, front safety tongs and back cover, rear axis portion, rear safety tongs.The right side of the right bearing in described rear axis portion is provided with rear axis connecting rod.Described rear axis connecting rod bottom is fixedly connected with rear axis, and rear axis connecting rod top is connected with long connecting rod rearward hinge.The right side of the right bearing in described front square shaft portion is provided with front square shaft connecting rod.Described front square shaft connecting rod top is fixedly connected with front square shaft, and front square shaft connecting rod bottom and the anterior chain connection of long connecting rod, the right side of front square shaft connecting rod is provided with joystick.Described joystick rear portion is fixedly connected with front square shaft, and joystick front portion is provided with operation hole, and joystick is fixed by operation hole and brake safe rope.
Bidirectional braking device of the present invention, wherein said fore shell left side is provided with reset portion.Described reset portion comprises train wheel bridge, location guide block, lower plate, back-guiding rod, rear cover spring, front guide rod and protheca spring.The left side of described fore shell is fixed with location guide block.Described location guide block cross-sectional plane is similar to front square shaft cross-sectional plane, fits in guide block upper surface, location and train wheel bridge front portion.Fit with front square shaft in the middle part of described train wheel bridge, the downside of location guide block is provided with lower plate.Described front guide rod is through train wheel bridge, location guide block and lower plate, and leading club head is stuck on the upper surface of train wheel bridge, is provided with front nut bottom front guide rod, and on front guide rod periphery, cover has protheca spring.Described protheca spring is stuck between front nut and the lower surface of lower plate.Described back-guiding rod, rear cover spring, back nut are identical with the shape and structure of front guide rod, protheca spring, front nut, symmetrical before and after back-guiding rod, rear cover spring, back nut and front guide rod, protheca spring, front nut.
Bidirectional braking device of the present invention, be provided with switch pressing board between wherein said left bearing and train wheel bridge, lower plate, described switch pressing board top is fixedly connected with square shaft, the midway location of switch pressing board lower surface is provided with triangular groove.Be provided with shift knob immediately below described triangular groove, when switch pressing board rotates with front square shaft, the distance between triangular groove and shift knob narrows down to triangular groove gradually and is pressed by shift knob.The bottom of described shift knob is connected with snap switch, and when pressing shift knob, snap switch cuts off the circuit of elevator.
Bidirectional braking device of the present invention, the right side of wherein said fore shell is provided with limit base.Described limit base is positioned at the upside of joystick, and when joystick is rotated upwardly to extreme higher position, limit base is blocked.
Bidirectional braking device of the present invention, the front side of wherein said left shell and right shell is provided with left cover and right cover plate.Described left cover is fixedly connected with the pin holder that rolls left.Described right cover plate is fixedly connected with right needle roller panel seat.The front end face of described left detent is provided with left pin.Described left cover is provided with the left elongated hole matched with left pin, and left pin and left elongated hole are flexibly connected.Described left elongated hole is parallel with the left side of left detent.The front end face of described right detent is provided with right pin.Described right cover plate is provided with the right elongated hole matched with right pin, and right pin and right elongated hole are flexibly connected.Described right elongated hole is parallel with the right side of right detent.
Bidirectional braking device of the present invention, wherein said lower casing is provided with caging bolt.Described caging bolt is positioned at immediately below left detent, and caging bolt is threaded through nut and lower casing, and caging bolt is connected with nut thread, and the spiro rod length of caging bolt is greater than thickness and the nut thickness sum of lower casing.
Bidirectional braking device difference from prior art of the present invention is that bidirectional braking device of the present invention is connected with brake safe rope by utilizing joystick.When needs are braked, safety rope pulls joystick that front square shaft and rear axis are rotated simultaneously, front safety tongs and rear safety tongs is braked simultaneously, substantially increases braking effect and insensitivity.And only need a safety rope to control joystick, save the cost of safety rope.By the shaft drying safety tongs of front square shaft and rear, be there is up braking and descending braking function simultaneously, enable the up braking of the present invention and descending braking.
Front square shaft can reset by the clamping plate that reset in bidirectional braking device of the present invention, and due to the effect of front square shaft connecting rod, long connecting rod and rear axis connecting rod, rear axis is resetted, and reaches the effect of the present invention that resets.The present invention controls opening and closed condition of snap switch by the rotation of switch pressing board, makes the present invention while braking, complete power-off to elevator, reaches better braking effect, and ensured the service life of drive unit for lift.The present invention, by being provided with limit base on the upside of joystick, when can prevent slipper serious wear, brakes the infringement to cage guide that panel seat friction cage guide produces.The present invention is by being provided with left pin and being provided with the left elongated hole matched with it at left cover in left detent, the guide function of left detent can be assisted, and facilitate workman to observe the upper-lower position of left braking, even be beneficial to the particular location that sensor installation detects left detent, be provided with right pin in right detent and be provided with the right elongated hole matched with it at right cover plate, the guide function of right detent can be assisted, and facilitate workman to observe the upper-lower position of right braking, be even beneficial to the particular location that sensor installation detects right detent.The present invention according to the extension elongation of the size adjustment caging bolt of elevator loading and acceleration/accel, thus can carry out mechanical position limitation to left detent by the effect of caging bolt, avoids the supercompression of disc spring to cause safety tongs work life short.
Below in conjunction with accompanying drawing, bidirectional braking device of the present invention is described further.
Accompanying drawing explanation
Fig. 1 is the right elevation of bidirectional braking device;
Fig. 2 is the left view of bidirectional braking device shown in Fig. 1;
Fig. 3 is fore shell axonometric drawing in Fig. 2;
Fig. 4 is the partial enlarged drawing at A place in Fig. 2;
Fig. 5 is the cutaway view along B-B line in Fig. 1;
Fig. 6 is the axonometric drawing of front safety tongs in Fig. 3;
Fig. 7 is the axonometric drawing installing left cover and right cover plate in Fig. 6 additional;
Fig. 8 is the front sectional view of Fig. 7.
Detailed description of the invention
As shown in Figure 1, bidirectional braking device of the present invention comprises fore shell 1, front square shaft portion 2, joystick 3, front safety tongs 4, front square shaft connecting rod 6, long connecting rod 7, back cover 8, rear axis portion 82, rear safety tongs 84 and rear axis connecting rod 86.
As shown in Fig. 1, Fig. 3 and Fig. 5, in fore shell 1 of the present invention, be provided with front square shaft portion 2.Described front square shaft portion 2 comprises front square shaft 20, right bearing 222, left bearing 212, front upper lever 21, front lower lever 22 and Z-shaped plate seat 23.The axis of described front square shaft 20 is left and right directions, and front square shaft 20 is fixed with fore shell 1 by right bearing 222 and left bearing 212.The cross-sectional interior of described right bearing 222 and left bearing 212 is square opening.Described square opening matches with front square shaft 20 cross-sectional plane, and the cross-sectional plane outside of right bearing 222 and left bearing 212 is circular.The bearing hole matching form of described circle and fore shell 1 closes, and right bearing 222 is fixedly connected with front square shaft 20 with left bearing 212.
As shown in Figure 3 and Figure 5, right bearing 222 periphery of the present invention is provided with front lower lever 22.The rear portion of described front lower lever 22 is flexibly connected with right bearing 222, and it is inner that front lower lever 22 is positioned at fore shell 1, and front lower lever 22 is fore-and-aft direction, and the middle part of front lower lever 22 is fixed with front lower nose bar 221.Described front lower nose bar 221 is vertical with front upper lever 21, and the right side of front lower nose bar 221 is fixedly connected with the left side of front lower lever 22, and the front portion of front lower lever 22 is provided with front lower bearing pin 223.Described front lower bearing pin 223 is fixedly connected with front lower lever 22, and front lower bearing pin 223 is left and right directions.The rear portion of described front upper lever 21 is flexibly connected with left bearing 212, and it is inner that front upper lever 21 is positioned at fore shell 1, and front upper lever 21 is fore-and-aft direction, and the middle part of front upper lever 21 is fixed with front upper nose bar 211.Described front upper nose bar 211 is vertical with front upper lever 21, and the left side of front upper nose bar 211 is fixedly connected with the right side of front upper lever 21, and the front portion of front upper lever 21 is provided with front upper pin 213.Described front upper pin 213 is fixedly connected with front upper lever 21, and front upper pin 213 is left and right directions.
As shown in Figure 3, Z-shaped plate seat 23 is provided with between front upper lever 21 of the present invention and front lower lever 22.Described Z-shaped plate seat 23 is fixedly connected with front square shaft 20, and Z-shaped plate seat 23 is fixedly connected with connecting panel 231 right part.Described connecting panel 231 is left and right directions, and the front upper side of connecting panel 231 left side is provided with action plate 2311 in front left.In described front left, the right side of action plate 2311 is fixedly connected with the left side of connecting panel 231, and in front left, action plate 2311 is positioned at directly over front upper nose bar 211, and the front downside of connecting panel 231 left side is provided with action plate 2312 under front right.Under described front right, the left side of action plate 2312 is fixedly connected with the right side of connecting panel 231, and under front right, action plate 2312 is positioned at immediately below front lower nose bar 221.
As shown in Figure 1 and Figure 2, fore shell 1 of the present invention is fixedly connected with front safety tongs 4 by gim peg 9, as shown in Figure 6 and Figure 8, front safety tongs of the present invention comprises upper casing 491, lower casing 492, left shell 493, right shell 494, right pull bar 410, right detent 420, right needle roller panel seat 430 and right needle roller bearing plate 431.Described upper casing 491 is provided with upper casing U hole 491a, and lower casing 492 is provided with lower casing U hole 492a.Described upper casing U hole 491a and lower casing U hole 492a inner sleeve have cage guide 48, also comprise left lever 440, left detent 450, roll left pin holder 460 and the needle plate 461 that rolls left.
As shown in Figure 6 and Figure 8, the bottom of right pull bar 410 of the present invention is fixedly connected with the upper surface of right detent 420 through upper casing right slotted hole 491b.The top of described right pull bar 410 is fixedly connected with the bottom of right connecting rod 411, and right connecting rod 411 top is provided with the cross through hole of left and right directions.Front lower bearing pin 223 is provided with, cross through hole and front lower bearing pin 223 free-running fit in described cross through hole.The length of described front upper pin 213 is greater than the thickness of right connecting rod 411.The right slotted hole 491b of described upper casing is left and right directions elongated hole.Described right detent 420 comprises pin 425, disc spring 427 and disc spring pin 427a on right Brake Block 421, right slipper 422, right braking guide rail 423, right Brake Block projection 424, right Brake Block.The bottom of described right pull bar 410 is fixedly connected with the upper surface of right Brake Block 421.The left side of described right Brake Block 421 is fixed with right slipper 422.
As shown in Figure 6 and Figure 8, the top, right side of right Brake Block 421 of the present invention is provided with right Brake Block projection 424.The top, left side of described right braking guide rail 423 is provided with the upper groove coordinated with right Brake Block projection 424.Described upper groove and right Brake Block projection 424 left and right directions free-running fit.The outer face of described upper groove is provided with slotted hole 425a on guide rail.On described guide rail, slotted hole 425a is slotted hole in left-right direction.On described right Brake Block, pin 425 is fixedly connected with right Brake Block projection 424 through slotted hole 425a on guide rail, and on right Brake Block, pin 425 is flexibly connected with slotted hole 425a on guide rail.Under described right Brake Block lower convexity 429, low groove, right Brake Block downside pin 426, guide rail, on slotted hole 426a and right Brake Block projection 424, upper groove, right Brake Block, on pin 425, guide rail, slotted hole 425a is symmetrical up and down.
As shown in Figure 6 and Figure 8, disc spring 427 is clamped in the left side of right braking guide rail 423 of the present invention and the right side of right Brake Block 421.Described disc spring 427 internal sleeve has disc spring pin 427a.The right part of described disc spring pin 427a is fixedly connected with right braking guide rail 423, and the left part of disc spring pin 427a is flexibly connected with right slipper 422 through right Brake Block 421.
As shown in Figure 8, disc spring pin 427a left part of the present invention is provided with plunger, and right slipper 422 is provided with the counterbore closed with plunger matching form, and the gap d 1 between the left side of plunger and right slipper 422 is greater than the gap between right Brake Block projection 424 and upper groove.
As shown in Figure 6 and Figure 8, the right side of right braking guide rail 423 of the present invention has a down dip to the right from upper left, is matched by the left side of right needle roller bearing plate 431 with right needle roller panel seat 430 in the right side of right braking guide rail 423.Described right needle roller bearing plate 431 is provided with needle roller.Described needle roller fore-and-aft direction is placed, and needle roller is multiple along plate length direction array.The right side of described right needle roller panel seat 430 is vertically arranged.Described right needle roller panel seat 430 is fixedly connected with right shell 494.
As shown in Figure 6 and Figure 8, right detent 420 of the present invention is identical with shape with the structure of left detent 450, right detent 420 and left detent 450 Central Symmetry, and the level height of left detent 450 is higher than right detent 420.Matched with the right side of the pin holder 460 that rolls left by the needle plate 461 that rolls left in the left side of described left detent 450.The left side of the described pin holder 460 that rolls left is fixedly connected with left shell 493, the bottom of left lever 440 is fixedly connected with the upper surface of left detent 450 through upper casing left slotted hole 491c, the top of left lever 440 is fixedly connected with the bottom of left connecting rod 441, and left connecting rod 441 top is provided with the cross through hole of left and right directions.Front upper pin 213 is provided with, cross through hole and front upper pin 213 free-running fit in described cross through hole.The length of described front upper pin 213 is greater than the thickness of left connecting rod 441.The left slotted hole 491c of described upper casing is left and right directions elongated hole.
As shown in Figure 7, the front side of left shell 493 of the present invention and right shell 494 is provided with left cover 471 and right cover plate 472.Described left cover 471 is fixedly connected with the pin holder 460 that rolls left.Described right cover plate 472 is fixedly connected with right needle roller panel seat 430.The front end face of described left detent 450 is provided with left pin 458.Described left cover 471 is provided with the left elongated hole 471a matched with left pin 458, and left pin 458 and left elongated hole 471a are flexibly connected.Described left elongated hole 471a is parallel with the left side of left detent 450.The front end face of described right detent 420 is provided with right pin 428.Described right cover plate 472 is provided with the right elongated hole 472a matched with right pin 428, and right pin 428 and right elongated hole 472a are flexibly connected.Described right elongated hole 472a is parallel with the right side of right detent 420.
As shown in Figure 6 and Figure 8, the top of the needle plate 461 that rolls left of the present invention is greater than the length of left detent 450 upper surface to the left and right directions projector distance of cage guide 48, and the bottom of the needle plate 461 that rolls left is less than the length of left detent 450 lower surface to the left and right directions projector distance of cage guide 48.The top of described right needle roller bearing plate 431 is less than the length of right detent 420 upper surface to the left and right directions projector distance of cage guide 48, and the bottom of right needle roller bearing plate 431 is greater than the length of right detent 420 lower surface to the left and right directions projector distance of cage guide 48.
As shown in Figure 6 and Figure 8, lower casing 492 of the present invention is provided with caging bolt 492b.Described caging bolt 492b is positioned at immediately below left detent 450, caging bolt 492b is threaded through nut and lower casing 492, caging bolt 492b is connected with nut thread, and the spiro rod length of caging bolt 492b is greater than thickness and the nut thickness sum of lower casing 492.
As shown in Figure 3, retracing spring 212 is provided with in fore shell 1 of the present invention.Described retracing spring 212 top is fixedly connected with fore shell 1 top, and retracing spring 212 bottom is fixedly connected with front upper lever 21, and the pulling force of retracing spring 212 is greater than the gravity of left detent 450.
As depicted in figs. 1 and 2, fore shell 1 of the present invention, front square shaft portion 2, front safety tongs 4 are identical with the planform of back cover 8, rear axis portion 82, rear safety tongs 84, symmetrical before and after fore shell 1, front square shaft portion 2, front safety tongs 4 and back cover 8, rear axis portion 82, rear safety tongs 84.
As shown in Figure 2 and Figure 4, fore shell 1 left side of the present invention is provided with reset portion 5.Described reset portion 5 comprises train wheel bridge 51, location guide block 52, lower plate 53, back-guiding rod 54, rear cover spring 541, front guide rod 55 and protheca spring 551.The left side of described fore shell 1 is fixed with location guide block 52.Described location guide block 52 cross-sectional plane is similar to front square shaft 20 cross-sectional plane, fits in guide block 52 upper surface, location and train wheel bridge 51 front portion.Fit with front square shaft 20 in the middle part of described train wheel bridge 51, the downside of location guide block 52 is provided with lower plate 53.Described front guide rod 55 is through train wheel bridge 51, location guide block 52 and lower plate 53, and front guide rod 55 head is stuck on the upper surface of train wheel bridge 51, is provided with front nut bottom front guide rod 55, and on front guide rod 55 periphery, cover has protheca spring 551.Described protheca spring 551 is stuck between front nut and the lower surface of lower plate.Described back-guiding rod 54, rear cover spring 541, back nut are identical with the shape and structure of front guide rod 55, protheca spring 551, front nut, symmetrical before and after back-guiding rod 54, rear cover spring 541, back nut and front guide rod 55, protheca spring 551, front nut.
As shown in Fig. 2, Fig. 4 and Fig. 5, be provided with switch pressing board 24 between left bearing 212 of the present invention and train wheel bridge 51, lower plate 53, described switch pressing board 24 top is fixedly connected with square shaft, the midway location of switch pressing board 24 lower surface is provided with triangular groove.Be provided with shift knob 561 immediately below described triangular groove, when switch pressing board 24 rotates with front square shaft 20, the distance between triangular groove and shift knob 561 narrows down to triangular groove gradually and is pressed by shift knob 561.The bottom of described shift knob 561 is connected with snap switch 56, and when pressing shift knob 561, snap switch 56 cuts off the circuit of elevator.
As shown in Figure 1, the right side of the right bearing in rear axis portion 82 of the present invention is provided with rear axis connecting rod 86.Described rear axis connecting rod 86 bottom is fixedly connected with rear axis, and rear axis connecting rod 86 top is connected with long connecting rod 7 rearward hinge.
As shown in figures 1 and 3, the right side of the right bearing 222 in front square shaft portion 2 of the present invention is provided with front square shaft connecting rod 6.Described front square shaft connecting rod 6 top is fixedly connected with front square shaft 20, and front square shaft connecting rod 6 bottom and the anterior chain connection of long connecting rod 7, the right side of front square shaft connecting rod 6 is provided with joystick 3.Described joystick 3 rear portion is fixedly connected with front square shaft 20, and joystick 3 front portion is provided with operation hole, and joystick 3 is fixed by operation hole and brake safe rope.The right side of described fore shell 1 is provided with limit base 31.Described limit base 31 is positioned at the upside of joystick 3, and when joystick 3 is rotated upwardly to extreme higher position, limit base 31 is blocked.
As shown in figures 1-8, fix in the operation hole of joystick 3 front portion with safety rope during use, fore shell 1 and the upper surface of back cover 8 and the lower surface of lift car are fixed.When descending braking, safety rope upwards pulls joystick 3, front square shaft 20 is rotated and upwards drives action plate 2312 under front right.Under front right, action plate 2312 upwardly front lower nose bar 221, makes front lower lever 22 upwards rotate.The front lower bearing pin 223 of front lower lever 22 front portion upwards lifts right pull bar 410 by right connecting rod 411, right detent 420 is moved from bottom to top from right to left, distance between right detent 420 and cage guide 48 is contracted to zero gradually, right slipper 422 extrudes right Brake Block 421 to the right, right Brake Block 421 extrudes disc spring 427 to the right, causes the gap between right Brake Block projection 424 and upper groove to reduce gradually.Right detent 420 is stuck between cage guide 48 and right needle roller panel seat 430 by the friction force that the pulling force of external force and cage guide 48 provide, and makes the descending braking of front safety tongs.And rear axis portion 82 and rear safety tongs 84 are in like manner braked by the effect of front square shaft connecting rod 6, long connecting rod 7 and rear axis connecting rod 86 by joystick 3, make lift car brake.When up braking, safety rope pulls joystick 3 downwards, front square shaft 20 is rotated and drives action plate 2311 in front left to rotate.In front left, action plate 2311 is to pressing down front upper nose bar 211, and front upper lever 21 is rotated.The power that peripheral force to be changed into above-below direction by left connecting rod 441 by the front upper pin 213 of front upper lever 21 front portion promotes left lever 440 downwards, left lever 440 is made to pull left detent 450 to move from left to right from top to bottom, and rear axis portion 82 and rear safety tongs 84 are in like manner braked by the effect of front square shaft connecting rod 6, long connecting rod 7 and rear axis connecting rod 86 by joystick 3, make lift car brake.
Above-described embodiment is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; the various distortion that those of ordinary skill in the art make technical scheme of the present invention and improvement, all should fall in protection domain that claims of the present invention determines.
Claims (4)
1. a bidirectional braking device, is characterized in that: comprise fore shell (1), front square shaft portion (2), joystick (3), front safety tongs (4), front square shaft connecting rod (6), long connecting rod (7), back cover (8), rear axis portion (82), rear safety tongs (84) and rear axis connecting rod (86);
Front square shaft portion (2) is provided with in described fore shell (1), described front square shaft portion (2) comprises front square shaft (20), right bearing (222), left bearing (212), front upper lever (21), front lower lever (22) and Z-shaped plate seat (23), the axis of described front square shaft (20) is left and right directions, front square shaft (20) is fixed with fore shell (1) by right bearing (222) and left bearing (212), the cross-sectional interior of described right bearing (222) and left bearing (212) is square opening, described square opening matches with front square shaft (20) cross-sectional plane, the cross-sectional plane outside of right bearing (222) and left bearing (212) is circular, the bearing hole matching form of described circle and fore shell (1) closes, right bearing (222) is fixedly connected with front square shaft (20) with left bearing (212),
Described right bearing (222) periphery is provided with front lower lever (22), the rear portion of described front lower lever (22) is flexibly connected with right bearing (222), it is inner that front lower lever (22) is positioned at fore shell (1), front lower lever (22) is fore-and-aft direction, the middle part of front lower lever (22) is fixed with front lower nose bar (221), described front lower nose bar (221) is vertical with front upper lever (21), the right side of front lower nose bar (221) is fixedly connected with the left side of front lower lever (22), the front portion of front lower lever (22) is provided with front lower bearing pin (223), described front lower bearing pin (223) is fixedly connected with front lower lever (22), front lower bearing pin (223) is left and right directions, the rear portion of described front upper lever (21) is flexibly connected with left bearing (212), it is inner that front upper lever (21) is positioned at fore shell (1), front upper lever (21) is fore-and-aft direction, the middle part of front upper lever (21) is fixed with front upper nose bar (211), described front upper nose bar (211) is vertical with front upper lever (21), the left side of front upper nose bar (211) is fixedly connected with the right side of front upper lever (21), the front portion of front upper lever (21) is provided with front upper pin (213), described front upper pin (213) is fixedly connected with front upper lever (21), front upper pin (213) is left and right directions,
Z-shaped plate seat (23) is provided with between described front upper lever (21) and front lower lever (22), described Z-shaped plate seat (23) is fixedly connected with front square shaft (20), Z-shaped plate seat (23) is fixedly connected with connecting panel (231) right part, described connecting panel (231) is left and right directions, the front upper side of connecting panel (231) left side is provided with action plate in front left (2311), in described front left, the right side of action plate (2311) is fixedly connected with the left side of connecting panel (231), in front left, action plate (2311) is positioned at directly over front upper nose bar (211), the front downside of connecting panel (231) left side is provided with action plate (2312) under front right, under described front right, the left side of action plate (2312) is fixedly connected with the right side of connecting panel (231), under front right, action plate (2312) is positioned at immediately below front lower nose bar (221),
Fore shell (1) is fixedly connected with front safety tongs (4) by gim peg (9), described front safety tongs comprises upper casing (491), lower casing (492), left shell (493), right shell (494), right pull bar (410), right detent (420), right needle roller panel seat (430) and right needle roller bearing plate (431), described upper casing (491) is provided with upper casing U hole (491a), lower casing (492) is provided with lower casing U hole (492a), described upper casing U hole (491a) and lower casing U hole (492a) inner sleeve have cage guide (48), also comprise left lever (440), left detent (450), roll left pin holder (460) and the needle plate that rolls left (461),
The bottom of described right pull bar (410) is fixedly connected with the upper surface of right detent (420) through the right slotted hole of upper casing (491b), the top of described right pull bar (410) is fixedly connected with the bottom of right connecting rod (411), right connecting rod (411) top is provided with the cross through hole of left and right directions, front lower bearing pin (223) is provided with in described cross through hole, cross through hole and front lower bearing pin (223) free-running fit, the length of described front upper pin (213) is greater than the thickness of right connecting rod (411), the right slotted hole of described upper casing (491b) is left and right directions elongated hole, described right detent (420) comprises right Brake Block (421), right slipper (422), right braking guide rail (423), right Brake Block projection (424), right Brake Block sells (425), disc spring (427) and disc spring pin (427a), the bottom of described right pull bar (410) is fixedly connected with the upper surface of right Brake Block (421), the left side of described right Brake Block (421) is fixed with right slipper (422),
The top, right side of described right Brake Block (421) is provided with right Brake Block projection (424), the top, left side of described right braking guide rail (423) is provided with the upper groove coordinated with right Brake Block projection (424), described upper groove and right Brake Block projection (424) left and right directions free-running fit, the outer face of described upper groove is provided with slotted hole on guide rail (425a), on described guide rail, slotted hole (425a) is slotted hole in left-right direction, described right Brake Block is sold (425) to be fixedly connected with right Brake Block projection (424) through slotted hole on guide rail (425a), right Brake Block is sold (425) to be flexibly connected with slotted hole on guide rail (425a), described right Brake Block lower convexity (429), low groove, right Brake Block downside pin (426), slotted hole (426a) and right Brake Block projection (424) under guide rail, upper groove, right Brake Block sells (425), on guide rail, slotted hole (425a) is symmetrical up and down,
Disc spring (427) is clamped in the described left side of right braking guide rail (423) and the right side of right Brake Block (421), described disc spring (427) internal sleeve has disc spring pin (427a), the right part of described disc spring pin (427a) is fixedly connected with right braking guide rail (423), and the left part of disc spring pin (427a) is flexibly connected with right slipper (422) through right Brake Block (421);
Described disc spring pin (427a) left part is provided with plunger, right slipper (422) is provided with the counterbore closed with plunger matching form, and the gap d 1 between the left side of plunger and right slipper (422) is greater than the gap between right Brake Block projection (424) and upper groove;
The right side of described right braking guide rail (423) has a down dip to the right from upper left, matched by the left side of right needle roller bearing plate (431) with right needle roller panel seat (430) in the right side of right braking guide rail (423), described right needle roller bearing plate (431) is provided with needle roller, described needle roller fore-and-aft direction is placed, needle roller is multiple along plate length direction array, the right side of described right needle roller panel seat (430) is vertically arranged, and described right needle roller panel seat (430) is fixedly connected with right shell (494);
Described right detent (420) is identical with shape with the structure of left detent (450), right detent (420) and left detent (450) Central Symmetry, the level height of left detent (450) is higher than right detent (420), matched by the right side of the needle plate that rolls left (461) with the pin holder that rolls left (460) in the left side of described left detent (450), the left side of the described pin holder that rolls left (460) is fixedly connected with left shell (493), the bottom of left lever (440) is fixedly connected with the upper surface of left detent (450) through the left slotted hole of upper casing (491c), the top of left lever (440) is fixedly connected with the bottom of left connecting rod (441), left connecting rod (441) top is provided with the cross through hole of left and right directions, front upper pin (213) is provided with in described cross through hole, cross through hole and front upper pin (213) free-running fit, the length of described front upper pin (213) is greater than the thickness of left connecting rod (441), the left slotted hole of described upper casing (491c) is left and right directions elongated hole,
The top of the described needle plate that rolls left (461) is greater than the length of left detent (450) upper surface to the left and right directions projector distance of cage guide (48), the roll left bottom of needle plate (461) is less than the length of left detent (450) lower surface to the left and right directions projector distance of cage guide (48), the top of described right needle roller bearing plate (431) is less than the length of right detent (420) upper surface to the left and right directions projector distance of cage guide (48), the bottom of right needle roller bearing plate (431) is greater than the length of right detent (420) lower surface to the left and right directions projector distance of cage guide (48),
Fore shell is provided with retracing spring in (1), described retracing spring top is fixedly connected with fore shell (1) top, retracing spring bottom is fixedly connected with front upper lever (21), and the pulling force of retracing spring is greater than the gravity of left detent (450);
Described fore shell (1), front square shaft portion (2), front safety tongs (4) are identical with the planform of back cover (8), rear axis portion (82), rear safety tongs (84), symmetrical before and after fore shell (1), front square shaft portion (2), front safety tongs (4) and back cover (8), rear axis portion (82), rear safety tongs (84);
The right side of the right bearing of described rear axis portion (82) is provided with rear axis connecting rod (86), described rear axis connecting rod (86) bottom is fixedly connected with rear axis, and rear axis connecting rod (86) top is connected with long connecting rod (7) rearward hinge;
The right side of the right bearing (222) of described front square shaft portion (2) is provided with front square shaft connecting rod (6), described front square shaft connecting rod (6) top is fixedly connected with front square shaft (20), front square shaft connecting rod (6) bottom and long connecting rod (7) anterior chain connection, the right side of front square shaft connecting rod (6) is provided with joystick (3), described joystick (3) rear portion is fixedly connected with front square shaft (20), joystick (3) front portion is provided with operation hole, and joystick (3) is fixed by operation hole and brake safe rope;
Described lower casing (492) is provided with caging bolt (492b), described caging bolt (492b) is positioned at immediately below left detent (450), caging bolt (492b) is threaded through nut and lower casing (492), caging bolt (492b) is connected with nut thread, and the spiro rod length of caging bolt (492b) is greater than thickness and the nut thickness sum of lower casing (492).
2. bidirectional braking device according to claim 1, it is characterized in that: described fore shell (1) left side is provided with reset portion (5), described reset portion (5) comprises train wheel bridge (51), location guide block (52), lower plate (53), back-guiding rod (54), rear cover spring (541), front guide rod (55) and protheca spring (551);
The left side of described fore shell (1) is fixed with location guide block (52), described location guide block (52) cross-sectional plane is similar to front square shaft (20) cross-sectional plane, fit in guide block (52) upper surface, location and train wheel bridge (51) front portion, fit with front square shaft (20) in described train wheel bridge (51) middle part, the downside of location guide block (52) is provided with lower plate (53), described front guide rod (55) is through train wheel bridge (51), location guide block (52) and lower plate (53), front guide rod (55) head is stuck on the upper surface of train wheel bridge (51), front guide rod (55) bottom is provided with front nut, on front guide rod (55) periphery, cover has protheca spring (551), described protheca spring (551) is stuck between front nut and the lower surface of lower plate, described back-guiding rod (54), rear cover spring (541), back nut and front guide rod (55), protheca spring (551), the shape and structure of front nut is identical, back-guiding rod (54), rear cover spring (541), back nut and front guide rod (55), protheca spring (551), symmetrical before and after front nut.
3. bidirectional braking device according to claim 2, it is characterized in that: described left bearing (212) and train wheel bridge (51), switch pressing board (24) is provided with between lower plate (53), described switch pressing board (24) top is fixedly connected with square shaft, the midway location of switch pressing board (24) lower surface is provided with triangular groove, shift knob (561) is provided with immediately below described triangular groove, when switch pressing board (24) rotates with front square shaft (20), distance between triangular groove and shift knob (561) narrows down to triangular groove gradually and is pressed by shift knob (561), the bottom of described shift knob (561) is connected with snap switch (56), when pressing shift knob (561), snap switch (56) cuts off the circuit of elevator.
4. bidirectional braking device according to claim 3, it is characterized in that: the right side of described fore shell (1) is provided with limit base (31), described limit base (31) is positioned at the upside of joystick (3), when joystick (3) is rotated upwardly to extreme higher position, limit base (31) is blocked.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310697310.9A CN103663038B (en) | 2013-12-17 | 2013-12-17 | Bidirectional braking device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310697310.9A CN103663038B (en) | 2013-12-17 | 2013-12-17 | Bidirectional braking device |
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| CN103663038A CN103663038A (en) | 2014-03-26 |
| CN103663038B true CN103663038B (en) | 2016-03-23 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109911739B (en) * | 2019-03-18 | 2024-02-09 | 杭州优迈科技有限公司 | Bidirectional safety tongs for elevator and elevator |
| CN113233281B (en) * | 2021-03-26 | 2022-03-01 | 科捷智能科技股份有限公司 | Connecting rod type anti-falling control method |
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| EP1902993A1 (en) * | 2006-09-19 | 2008-03-26 | Wittur AG | Auto resetting mechanism for a BCU type brake arresting device |
| CN101979298A (en) * | 2010-10-20 | 2011-02-23 | 日立电梯（中国）有限公司 | Elevator safety stop trigger device |
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