CN107285158B - Flighted piece formula elevator overspeed governor - Google Patents
Flighted piece formula elevator overspeed governor Download PDFInfo
- Publication number
- CN107285158B CN107285158B CN201710670017.1A CN201710670017A CN107285158B CN 107285158 B CN107285158 B CN 107285158B CN 201710670017 A CN201710670017 A CN 201710670017A CN 107285158 B CN107285158 B CN 107285158B
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- assembly
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 4
- 239000010959 steel Substances 0.000 claims abstract description 4
- 238000003466 welding Methods 0.000 claims description 21
- 238000010009 beating Methods 0.000 claims description 19
- 238000013016 damping Methods 0.000 claims description 12
- 239000011324 bead Substances 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 3
- 230000009471 action Effects 0.000 description 5
- 238000005457 optimization Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Classifications
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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
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
- B66B5/044—Mechanical overspeed governors
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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
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
- B66B5/24—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces by acting on guide ropes or cables
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention discloses a flighted piece type elevator speed limiter, which comprises a base frame component and a rope pulley component, wherein the base frame component comprises a base plate, a front side plate and a rear side plate which are symmetrically fixed on the base plate along the front-rear direction, the rope pulley component is arranged between the front side plate and the rear side plate, and the flighted piece type elevator speed limiter also comprises a first switch component and a rope clamping component, wherein the first switch component is fixed on the front side plate and used for triggering a first power-off signal when overspeed, and the rope clamping component is fixed on the base plate and used for clamping a speed limiter steel wire rope when overspeed. The rope clamping device has the advantages of simple structure, convenience in use, firm rope clamping and high safety.
Description
Technical Field
The invention relates to an elevator speed limiter, in particular to an eccentric wheel fling type elevator speed limiter with multiple protection functions.
Background
In recent years, the structure and the technology of the speed limiter device for the elevator are rapidly developed, and currently, the speed limiter with more use mainly comprises a pendulum type speed limiter and a centrifugal type speed limiter, and particularly, the centrifugal type speed limiter is most widely applied. The existing speed limiter consists of a bracket, a rope pulley, a ratchet wheel, a pawl, a pressing claw, a throwing block assembly, a rope pressing and beating plate assembly and the like, and the action is completed by utilizing the principle that the rotation centrifugal force is increased along with the change of the rotation speed. However, the existing speed limiter has the problems of low comprehensive protection performance, weak rope clamping and poor safety in practical application, and needs to be further perfected or improved.
Disclosure of Invention
The invention aims to provide a fling elevator speed limiter which has the advantages of simple structure, convenience in use, firm rope clamping and high safety.
The invention provides a flighted elevator speed limiter, which aims to solve the problems of low comprehensive protection performance, weak rope clamping and poor safety of the elevator speed limiter in the prior art.
Further, the invention relates to a swing type elevator speed limiter, wherein the rope pulley assembly comprises a rope pulley shaft and a rope pulley fixed on the rope pulley shaft, two eccentric wheels which are symmetrically distributed in a central mode are arranged on the front side face of the rope pulley, two swing pieces which are symmetrically distributed in a central mode are hinged between the two eccentric wheels, two adjusting devices which are symmetrically distributed in a central mode are arranged between the two swing pieces, a brake disc is arranged on the rope pulley shaft through a first bearing sleeve, the rear end of the brake disc is located between the two eccentric wheels, a brake disc is coaxially fixed at the front end of the brake disc, and the brake disc is located at the front side of the two swing pieces; two ends of the rope wheel shaft are correspondingly arranged in shaft sleeves fixedly arranged at the upper ends of the front side plate and the rear side plate respectively through second bearings.
Further, the invention relates to a flighted elevator speed limiter, wherein the first switch component comprises a switch bracket and a first switch body fixed on the switch bracket, a switch beating plate is arranged on the lower side of the switch bracket, the switch beating plate is hinged with a connecting plate arranged at the bottom of the switch bracket through a beating plate shaft, a baffle plate is arranged at the lower end of the beating plate shaft, a pre-tightening spring seat is arranged at the upper end of the beating plate shaft, a pre-tightening spring is arranged between the pre-tightening spring seat and the connecting plate, a groove is arranged at the outer end of the switch beating plate, the groove is in smooth transition with the upper side surface of the switch beating plate, and a contact of the first switch body is positioned in the groove of the switch beating plate; the first switch assembly is fixed on the front side plate through a mounting frame connected with the switch support, and the inner end of the switch beating plate penetrates through a through hole formed in the front side plate and is positioned in a notch formed in the outer edge of the brake block.
Further, the invention relates to a flighted elevator speed limiter, wherein the rope clamping assembly comprises a front support plate and a rear support plate which are symmetrically fixed on a bottom plate along the front-rear direction, and a first movable block, a second movable block, two guide rods and two movable joint bolts which are arranged between the front support plate and the rear support plate and distributed from left to right; the front support plate and the rear support plate are respectively provided with an upper strip-shaped guide hole and a lower strip-shaped guide hole, and the guide holes are offset from top to bottom to right; two through holes corresponding to the two guide holes on the front support plate and the rear support plate are formed in the first movable block, two pin shafts correspondingly penetrate through the two through holes of the first movable block and the two guide holes on the front support plate and the rear support plate, a first brake shoe is clamped on the right side of the first movable block, and a guide chute in the left-right direction is formed in the middle of the front side surface of the first movable block; the left side of the second movable block is clamped with a second brake shoe, the front and rear sides of the second movable block are correspondingly provided with a front welding plate and a rear welding plate, and the left side of the front welding plate is provided with a guide sliding block extending into the guide sliding groove; the two guide rods are vertically distributed and are hinged with the front welding plate and the rear welding plate through pin shafts, the right ends of the two guide rods correspondingly penetrate through two movable joint bolts and are screwed with nuts, and return springs and return spring seats distributed at the two ends of the return springs are respectively sleeved on the two guide rods; both ends of the two upper movable joint bolts are correspondingly hinged with the front support plate and the rear support plate; the rear end of the front support plate is also fixed with a support rod, a trigger rod is hinged on the support rod, a connecting rod is hinged on the trigger rod, the connecting rod is hinged with the second movable block, and the right end of the trigger rod extends into the brake block between the two collision blocks fixedly arranged on the outer edge of the brake block.
Further, the invention relates to a fling elevator speed limiter, wherein a second switch assembly is arranged on the front support plate and comprises a connecting plate fixed on the front support plate and a second switch body fixed on the connecting plate, and a contact of the second switch body is positioned at the lower side of a pressing plate fixedly arranged on the trigger rod.
Furthermore, the invention discloses a centrifugal vane elevator speed limiter, wherein symmetrical light body positioning beads are arranged on the outer sides of a front welding plate and a rear welding plate, and positioning holes corresponding to the light body positioning beads are formed in a front support plate and a rear support plate.
Furthermore, the invention relates to a flighted elevator speed limiter, wherein the upper end of the supporting rod is also hinged with a trigger wrench, and the trigger wrench is positioned at the upper side of the trigger rod.
Furthermore, the invention relates to a swing type elevator speed limiter, wherein two adjusting screws are rotatably arranged on a rope pulley, damping springs and damping spring seats are sequentially arranged on the front sides of the two adjusting screws, the damping spring seats are inserted into guide grooves formed in the front end faces of the adjusting screws through guide rods, and the two damping spring seats correspondingly prop against the two swing plates.
Compared with the prior art, the centrifugal vane elevator speed limiter has the following advantages: according to the invention, the base frame assembly comprises a base plate, a front side plate and a rear side plate which are symmetrically fixed on the base plate along the front-rear direction, the rope wheel assembly is erected between the front side plate and the rear side plate, and the first switch assembly and the rope clamping assembly are arranged, so that the first switch assembly is fixed on the front side plate and used for triggering a first power-off signal when overspeed occurs, and the rope clamping assembly is fixed on the base plate and used for clamping a speed limiter steel wire rope when overspeed occurs. Therefore, the swing type elevator speed limiter is simple in structure, convenient to use, firm in rope clamping and high in safety. In practical application, let elevator overspeed governor wire rope pass through rope sheave subassembly and clamp rope subassembly in proper order, when overspeed, trigger first outage signal through first switch assembly on the one hand to control system cuts off the power supply, on the other hand presss from both sides tight overspeed governor wire rope through clamp rope subassembly and makes the elevator car stop. The double protection function can effectively improve the safety of elevator operation.
The invention relates to a flighted elevator speed limiter, which is further described in detail below with reference to the specific embodiments shown in the drawings:
Drawings
Fig. 1 is a front view of a flighted elevator governor of the present invention;
Fig. 2 is a perspective view of a flighted elevator governor of the present invention;
fig. 3 is a top view of a flighted elevator governor of the present invention;
fig. 4 is a left side view of a flighted elevator governor of the present invention;
fig. 5 is a rear view of a flighted elevator governor of the present invention;
fig. 6 is a second perspective view of a flighted elevator governor of the present invention;
Fig. 7 is a front view of a sheave assembly in a flighted elevator governor of the present invention;
fig. 8 is a perspective view of a sheave assembly in a flighted elevator governor of the present invention;
FIG. 9 is a view in the A-A direction of FIG. 7;
fig. 10 is a left side view of a sheave assembly in a flighted elevator governor of the present invention
Fig. 11 is a rear view of a sheave assembly in a flighted elevator governor of the present invention;
Fig. 12 is a second perspective view of a sheave assembly in a flighted elevator governor of the present invention;
fig. 13 is an exploded view of a sheave assembly in a flighted elevator governor of the present invention;
fig. 14 is an exploded view of a sheave assembly in a flighted elevator governor of the present invention;
fig. 15 is a front view of a roping assembly in a fling elevator governor of the present invention;
fig. 16 is a perspective view of a rope clamping assembly in a flighted elevator governor of the present invention;
Fig. 17 is a top view of a roping assembly in a fling elevator governor of the present invention;
fig. 18 is a second perspective view of the rope clip assembly of the flighted elevator governor of the present invention;
Fig. 19 is an exploded view of a roping assembly in a fling elevator governor of the present invention;
Fig. 20 is an exploded view of a roping assembly in a fling elevator governor of the present invention;
Fig. 21 is a front view of a first switch assembly in a flighted elevator governor of the present invention;
fig. 22 is a perspective view of a first switch assembly of the flighted elevator governor of the present invention;
Fig. 23 is a rear view of a first switch assembly in a flighted elevator governor of the present invention;
Fig. 24 is a second perspective view of a first switch assembly of the flighted elevator governor of the present invention;
fig. 25 is a left side view of a first switch assembly in a flighted elevator governor of the present invention;
fig. 26 is a top view of a first switch assembly in a flighted elevator governor of the present invention.
Detailed Description
It should be noted that, the terms of front, back, left, right, up, down and the like in the present invention are merely described according to the drawings, so as to facilitate understanding, and do not limit the technical solution of the present invention and the scope of protection claimed.
An embodiment of the invention, illustrated in fig. 1 to 26, of a flighted elevator governor, comprises a base assembly 1 and a sheave assembly 2. The base assembly 1 specifically includes a floor 11 and front and rear side panels 12 and 13 symmetrically secured to the floor 11 in a fore-aft direction. The pulley assembly 2 is arranged between the front side plate 12 and the rear side plate 13. Simultaneously, the first switch assembly 3 and the rope clamping assembly 4 are arranged, so that the first switch assembly 3 is fixed on the front side plate 12 and is used for triggering a first power-off signal when overspeed occurs, and the rope clamping assembly 4 is fixed on the bottom plate 11 and is used for clamping a speed limiter steel wire rope when overspeed occurs. The centrifugal vane elevator speed limiter is simple in structure, convenient to use, firm in rope clamping and high in safety. In practical application, the elevator speed limiter wire rope sequentially passes through the rope wheel assembly 2 and the rope clamping assembly 4, and when overspeed occurs, on one hand, a first power-off signal is triggered through the first switch assembly 3 so as to control the system to power off, and on the other hand, the speed limiter wire rope is clamped through the rope clamping assembly 4 so as to stop the elevator car. The double protection function can effectively improve the safety of elevator operation.
As a specific embodiment, the pulley assembly 2 of the present invention specifically comprises a pulley shaft 21 and a pulley 22 fixed to the pulley shaft 21. Two eccentric wheels 23 which are distributed in a central symmetry manner are arranged on the front side surface of the rope wheel 22, two throwing pieces 24 which are distributed in a central symmetry manner are hinged between the two eccentric wheels 23, and two adjusting devices 25 which are distributed in a central symmetry manner are arranged between the two throwing pieces 24. A brake disc 27 is sleeved on the rope wheel shaft 21 through a first bearing 26, the rear end of the brake disc 27 is positioned between the two eccentric wheels 23, a brake block 28 is coaxially fixed at the front end of the brake disc 27, and the brake block 28 is positioned at the front sides of the two throwing blocks 24. The rope wheel shaft 21 is correspondingly arranged at both ends thereof in the shaft sleeve 14 fixedly arranged at the upper ends of the front side plate 12 and the rear side plate 13 through the second bearing 29. The rope pulley assembly 2 with the structure has the characteristics of simple structure and stable operation.
As an optimization, the present embodiment makes the first switch assembly 3 specifically include a switch bracket 31 and a first switch body 32 fixed to the switch bracket 31. A switch plate 33 is provided on the lower side of the switch bracket 31, and the switch plate 33 is hinged to a connecting plate 35 provided on the bottom of the switch bracket 31 through a plate shaft 34. A stopper 36 is provided at the lower end of the punch shaft 34, a pretension spring seat 37 is provided at the upper end of the punch shaft 34, and a pretension spring 38 is provided between the pretension spring seat 37 and the connecting plate 35. A groove is provided at the outer end of the switch strike plate 33 and smoothly transitions the groove with the upper side of the switch strike plate 33, so that the contact of the first switch body 32 is in the groove of the switch strike plate 33. The first switch assembly 3 is fixed on the front side plate 12 through a mounting frame 39 connected with the switch bracket 31, so that the inner end of the switch opening plate 33 passes through the through hole formed in the front side plate 12 and is positioned in the notch 281 formed in the outer edge of the brake block 28. The first switch assembly 3 with the structure has the advantages of simple structure, convenient disassembly and assembly, sensitive action and high reliability. In practical application, when the elevator runs at overspeed, the far points of the two eccentric wheels 23 on the rope pulley assembly 2 move towards the center and clamp the brake disc 27, so that the brake disc 27 drives the brake disc 28 to rotate along with the rope pulley 22, the switch opening plate 33 is shifted to one side through the side broken wall of the opening 281 when the brake disc 28 rotates, and the switch opening plate 33 triggers a power-off signal through the contact arranged in the groove when rotating, so that the control system timely performs power-off. According to the invention, the switch board 33 is hinged with the connecting plate 35 through the board shaft 34, the pre-tightening spring 38 is arranged on the board shaft 34, after the switch board 33 is stirred, the switch board 33 can be prevented from returning by itself through the pre-tightening elasticity of the pre-tightening spring 38, the reliability of triggering a power-off signal is ensured, and the safety of an elevator is enhanced.
As a further optimization, the present embodiment makes the rope clamping assembly 4 specifically include a front support plate 41 and a rear support plate 42 symmetrically fixed on the bottom plate 11 along the front-rear direction, and a first movable block 43, a second movable block 44, two guide rods 45 and two swing bolts 46 disposed between the front support plate 41 and the rear support plate 42 and distributed from left to right. The front bracket plate 41 and the rear bracket plate 42 are provided with an upper strip-shaped guide hole and a lower strip-shaped guide hole, and the guide holes are offset from top to bottom to right. Two through holes 431 corresponding to the two guide holes on the front bracket plate 41 and the rear bracket plate 42 are formed in the first movable block 43, and two pin shafts are used to correspondingly pass through the two through holes 431 of the first movable block 43 and the two guide holes on the front bracket plate 41 and the rear bracket plate 42. A first brake shoe 432 is engaged with the right side of the first movable block 43, and a guide chute 433 in the right-left direction is provided in the middle of the front side surface of the first movable block 43. A second brake shoe 441 is engaged with the left side of the second movable block 44, a front welding plate 442 and a rear welding plate 443 are provided on the front and rear sides of the second movable block 44, and a guide slider 444 extending into the guide chute 433 is provided on the left side of the front welding plate 442. The two guide rods 45 are vertically distributed and the left ends of the two guide rods 45 are hinged with the front welding plate 442 and the rear welding plate 443 through pin shafts, the right ends of the two guide rods 45 correspondingly penetrate through the two movable joint bolts 46 and are screwed with nuts, and return springs and return spring seats distributed at the two ends of the return springs are respectively sleeved on the two guide rods 45. Both ends of the two upper swing bolts 46 are hinged with the front bracket plate 41 and the rear bracket plate 42 correspondingly. Meanwhile, a supporting rod 47 is fixedly arranged at the rear end of the front support plate 41, a trigger rod 48 is hinged on the supporting rod 47, a connecting rod 49 is hinged on the trigger rod 48, the connecting rod 49 is hinged with the second movable block 44, and the right end of the trigger rod 48 extends into the space between two collision blocks 282 fixedly arranged on the outer edge of the brake block 28. The rope clamping component 4 with the structure has the advantages of simple structure, high sensitivity, firm rope clamping, safety and reliability. In practical application, when the elevator overspeed runs and the brake block 28 rotates along with the rope pulley 22, the impact block 282 on the brake block 28 presses down the trigger rod 48, the trigger rod 48 drives the second movable block 44 to move downwards through the connecting rod 49, the second movable block 44 moves leftwards under the action of the two guide rods 45 in the downward moving process, meanwhile, under the cooperation of the guide sliding block 444 and the guide sliding groove 433, the first movable block 43 moves downwards synchronously with the second movable block 44, and during the downward moving process of the first movable block 43, the first movable block 43 also moves rightwards under the action of the strip-shaped guide holes in the front support plate 41 and the rear support plate 42. The arrangement and the matching mode can lead the first movable block 43 and the second movable block 44 to synchronously move and lead the distance between the first movable block 43 and the second movable block to gradually decrease, thereby achieving the purpose of clamping the elevator speed limiter wire rope. Compared with the rope clamping structure of the existing speed limiter, the invention adopts the structure form that the first movable block 43 and the second movable block 44 synchronously and relatively move, thereby shortening the action stroke and improving the sensitivity and the reliability.
As a further optimization, the present embodiment further provides a second switch assembly 5 on the front bracket plate 41 of the rope clamping assembly 4. Let the second switch assembly 5 specifically include a connection plate 51 fixed to the front support plate 41, and a second switch body 52 fixed to the connection plate 51, and let the contacts of the second switch body 52 be located at the lower side of a pressing plate 481 fixedly disposed on the trigger lever 48. This structure sets up when the first outage signal inefficacy that first switch module 3 triggered, accessible second switch module 5 triggers the second outage signal to realized the function of multiple protection, improved the security. Meanwhile, in order to ensure the stability of the structure, the rope clamping assembly 4 is prevented from affecting the normal operation of the elevator speed limiter wire rope under the condition of non-overspeed operation of the elevator, symmetrical light body positioning beads are arranged on the outer sides of the front welding plate 442 and the rear welding plate 443 in the specific embodiment, and positioning holes corresponding to the light body positioning beads are formed in the front support plate 41 and the rear support plate 42. In addition, the present embodiment further includes a trigger wrench 410 hinged to the upper end of the support rod 47, and the trigger wrench 410 is located at an upper position of the trigger rod 48, so as to facilitate manual operation of the rope clamping assembly 4.
In order to slow down the vibration and eliminate the noise, the two adjusting screws 221 are further screwed on the rope pulley 22, and the damping springs 222 and the damping spring seats 223 are sequentially arranged on the front sides of the two adjusting screws 221, so that the damping spring seats 223 are inserted into the guide grooves formed in the front end faces of the adjusting screws 221 through guide rods, and the two damping spring seats 223 correspondingly prop against the two throwing pieces 24.
The above examples are only illustrative of the preferred embodiments of the present invention and are not intended to limit the scope of the invention as claimed, and various modifications made by those skilled in the art according to the technical solution of the present invention should fall within the scope of the invention as defined in the claims without departing from the spirit of the invention.
Claims (5)
1. The centrifugal sheet type elevator speed limiter comprises a base frame assembly (1) and a rope pulley assembly (2), wherein the base frame assembly (1) comprises a bottom plate (11) and a front side plate (12) and a rear side plate (13) which are symmetrically fixed on the bottom plate (11) along the front-rear direction, and the rope pulley assembly (2) is erected between the front side plate (12) and the rear side plate (13), and the centrifugal sheet type elevator speed limiter is characterized by further comprising a first switch assembly (3) and a rope clamping assembly (4), wherein the first switch assembly (3) is fixed on the front side plate (12) and is used for triggering a first power-off signal when overspeed occurs, and the rope clamping assembly (4) is fixed on the bottom plate (11) and is used for clamping a speed limiter steel wire rope when overspeed occurs;
The rope pulley assembly (2) comprises a rope pulley shaft (21) and a rope pulley (22) fixed on the rope pulley shaft (21), two eccentric wheels (23) which are distributed in a central symmetry manner are arranged on the front side surface of the rope pulley (22), two throwing pieces (24) which are distributed in a central symmetry manner are hinged between the two eccentric wheels (23), two adjusting devices (25) which are distributed in a central symmetry manner are arranged between the two throwing pieces (24), a brake disc (27) is sleeved on the rope pulley shaft (21) through a first bearing (26), the rear end of the brake disc (27) is positioned between the two eccentric wheels (23), and a brake disc (28) is coaxially fixed at the front end of the brake disc (27), the brake pads (28) are positioned on the front sides of the two throwing pieces (24); two ends of the rope wheel shaft (21) are correspondingly arranged in shaft sleeves (14) fixedly arranged at the upper ends of the front side plate (12) and the rear side plate (13) respectively through second bearings (29); the first switch component (3) comprises a switch bracket (31) and a first switch body (32) fixed on the switch bracket (31), a switch beating plate (33) is arranged at the lower side of the switch bracket (31), the switch beating plate (33) is hinged with a connecting plate (35) arranged at the bottom of the switch bracket (31) through a beating plate shaft (34), a baffle (36) is arranged at the lower end of the beating plate shaft (34), a pre-tightening spring seat (37) is arranged at the upper end of the beating plate shaft (34) and a pre-tightening spring (38) is arranged between the pre-tightening spring seat (37) and the connecting plate (35), a groove is arranged at the outer end of the switch beating plate (33) and enables the groove to smoothly transition with the upper side surface of the switch beating plate (33), the contact of the first switch body (32) is positioned in a groove of the switch beating plate (33); the first switch assembly (3) is fixed on the front side plate (12) through a mounting frame (39) connected with the switch bracket (31), and the inner end of the switch beating plate (33) passes through a through hole formed in the front side plate (12) and is positioned in a notch (281) formed in the outer edge of the brake plate (28); the rope clamping assembly (4) comprises a front support plate (41) and a rear support plate (42) which are symmetrically fixed on the bottom plate (11) along the front-rear direction, and a first movable block (43), a second movable block (44), two guide rods (45) and two movable joint bolts (46) which are arranged between the front support plate (41) and the rear support plate (42) and distributed from left to right; the front support plate (41) and the rear support plate (42) are respectively provided with an upper strip-shaped guide hole and a lower strip-shaped guide hole, and the guide holes are offset from top to bottom to right; two through holes (431) corresponding to the two guide holes on the front support plate (41) and the rear support plate (42) are formed in the first movable block (43), two pin shafts correspondingly penetrate through the two through holes (431) of the first movable block (43) and the two guide holes on the front support plate (41) and the rear support plate (42), a first brake shoe (432) is clamped on the right side of the first movable block (43), and a left-right direction guide chute (433) is formed in the middle of the front side surface of the first movable block (43); a second brake shoe (441) is clamped on the left side of the second movable block (44), a front welding plate (442) and a rear welding plate (443) are correspondingly arranged on the front side and the rear side of the second movable block (44), and a guide sliding block (444) extending into the guide sliding groove (433) is arranged on the left side of the front welding plate (442); the two guide rods (45) are distributed up and down and the left ends of the two guide rods are hinged with the front welding plate (442) and the rear welding plate (443) through pin shafts, the right ends of the two guide rods (45) correspondingly penetrate through the two movable joint bolts (46) and are screwed with nuts, and return springs and return spring seats distributed at the two ends of the return springs are respectively sleeved on the two guide rods (45); both ends of the two upper movable joint bolts (46) are correspondingly hinged with the front support plate (41) and the rear support plate (42); the rear end of the front support plate (41) is also fixed with a support rod (47), the support rod (47) is hinged with a trigger rod (48), the trigger rod (48) is hinged with a connecting rod (49), the connecting rod (49) is hinged with a second movable block (44), and the right end of the trigger rod (48) extends into the brake block (28) between two collision blocks (282) fixedly arranged on the outer edge of the brake block.
2. A flighted elevator speed limiter according to claim 1, characterized in that the front support plate (41) is provided with a second switch assembly (5), the second switch assembly (5) comprises a connecting plate (51) fixed on the front support plate (41) and a second switch body (52) fixed on the connecting plate (51), and the contacts of the second switch body (52) are positioned at the lower side of a pressing plate (481) fixedly arranged on the triggering lever (48).
3. The centrifugal vane elevator speed limiter according to claim 2, wherein symmetrical light body positioning beads are arranged on the outer sides of the front welding plate (442) and the rear welding plate (443), and positioning holes corresponding to the light body positioning beads are formed in the front support plate (41) and the rear support plate (42).
4. A flighted elevator governor according to claim 3, characterized in that the upper end of the supporting rod (47) is further hinged with a trigger wrench (410) and the trigger wrench (410) is located at the upper side of the trigger rod (48).
5. A flighted elevator speed limiter according to any one of claims 1-4, characterized in that two adjusting screws (221) are screwed on the rope sheave (22), the front sides of the two adjusting screws (221) are respectively provided with a damping spring (222) and a damping spring seat (223) in sequence, the damping spring seat (223) is inserted into a guide groove formed in the front end face of the adjusting screw (221) through a guide rod, and the two damping spring seats (223) correspondingly prop against the two flighted pieces (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710670017.1A CN107285158B (en) | 2017-08-08 | 2017-08-08 | Flighted piece formula elevator overspeed governor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710670017.1A CN107285158B (en) | 2017-08-08 | 2017-08-08 | Flighted piece formula elevator overspeed governor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107285158A CN107285158A (en) | 2017-10-24 |
| CN107285158B true CN107285158B (en) | 2024-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710670017.1A Active CN107285158B (en) | 2017-08-08 | 2017-08-08 | Flighted piece formula elevator overspeed governor |
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| CN (1) | CN107285158B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111874774B (en) * | 2020-08-31 | 2024-08-06 | 苏州尼隆机电科技有限公司 | Duplex braking elevator speed limiter and remote testing mechanism thereof |
| CN115448123B (en) * | 2022-09-26 | 2024-08-30 | 苏州尼隆机电科技有限公司 | Adjustable linkage control elevator speed limiter |
Citations (8)
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| Publication number | Publication date |
|---|---|
| CN107285158A (en) | 2017-10-24 |
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