CN114104901B - Follow-up speed limiter attached to car - Google Patents
Follow-up speed limiter attached to car Download PDFInfo
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- CN114104901B CN114104901B CN202111365909.3A CN202111365909A CN114104901B CN 114104901 B CN114104901 B CN 114104901B CN 202111365909 A CN202111365909 A CN 202111365909A CN 114104901 B CN114104901 B CN 114104901B
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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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses a follow-up speed limiter attached to a lift car, which comprises a cross rod, a braking chute, a braking wedge block, a sliding seat, a compression spring, a central shaft, a friction wheel, a ratchet wheel, a centrifugal wheel, a lifting plate, an impact block, a braking wheel, an electric trigger switch, an electromagnetic action mechanism, a baffle plate and a notch plate, wherein the friction wheel is tightly rolled and attached to a guide rail; when the electric trigger switch receives a speed limiting instruction or detects overspeed, the electromagnetic actuating mechanism is triggered to drive the baffle to clamp the pawl of the ratchet, then the ratchet drives the lifting plate to rotate, and the lifting plate simultaneously generates lifting force to trigger the subsequent lifting mechanism and the safety tongs to actuate and drive the brake wheel to rotate, and the brake wheel drives the brake wedge to approach the guide rail along the brake chute through the notch and the wedge guide rod and squeeze the brake wheel; and during overspeed, the centrifugal block of the centrifugal wheel is thrown out to hook the impact plate, and then the centrifugal wheel drives the impact plate to rotate, and the lifting plate and the brake wheel rotate along with the impact plate. The speed limiter omits a steel wire rope with a through length, and can realize triggering at any speed.
Description
Technical Field
The invention belongs to the field of elevators, and particularly relates to a follow-up speed limiter attached to a car.
Background
The following speed limiter attached to the car generally includes a speed tracking portion for monitoring the car speed at a moment when the car is running and a speed limiting action portion for triggering the speed limiting action portion upon the car running speed exceeding the limit. At present, the speed tracking mode of the speed limiter is to utilize a speed limiter steel wire rope with a through length to be connected to a car, pass through a speed limiting wheel installed at a machine room floor and a tensioning wheel installed at the bottom of an elevator shaft, and throw out a centrifugal block of the speed limiting wheel to brake the speed limiting wheel to generate lifting force so as to trigger a safety tongs to act when the car is overspeed. Because the speed limiter wire rope is the logical length, lead to various rope circuit in the elevator well to be disordered and twine easily, in addition, traditional overspeed governor can only be triggered in exceeding rated speed, can't satisfy the condition that arbitrary speed triggered.
Disclosure of Invention
The invention aims to provide a follow-up speed limiter attached to a car, which has two speed limiting triggers at the same time, omits a steel wire rope with a through length, can adapt to various elevators, can realize the trigger at any speed, and increases safety redundancy.
The technical scheme adopted by the invention is as follows:
a follow-up speed limiter attached to a car, which is arranged on a car frame and comprises two groups of speed limiting trigger devices positioned at two sides of a guide rail (14); the speed limiting trigger device comprises a cross rod (7), a brake chute (27) and a brake wedge (28) matched on the brake chute (27), wherein a slide seat (31) is sleeved on the cross rod (7) in a sliding supporting manner, a compression spring (8) is sleeved on the slide seat (31), a central shaft (35) is fixedly arranged on the slide seat (31), a friction wheel (15), a ratchet wheel (16), a centrifugal wheel (17), a lifting plate (21), an impact block (23) and a brake wheel (24) are sleeved on the central shaft (35) in an axial limiting manner, the compression spring (8) compresses the slide seat (31) to enable the friction wheel (15) to be tightly rolled and attached to a guide rail (14), the friction wheel (15), the ratchet wheel (16) and the centrifugal wheel (17) are synchronously connected, the lifting plate (21), the impact block (23) and the brake wheel (24) are synchronously connected through the friction plate (40), an electric trigger switch (13) capable of detecting the rotating speed of the friction wheel (15) is arranged on the slide seat (31), an electromagnetic action mechanism (20) and a baffle plate (18) are arranged on the lifting plate (24), and a notch plate (30) is arranged on the brake wheel (24) and matched with the wedge (29) on the brake wedge (28) through the notch; the electric trigger switch (13) triggers the electromagnetic actuating mechanism (20) to drive the baffle plate (18) to clamp the pawl of the ratchet wheel (16) when receiving a speed limiting instruction or detecting overspeed, then the ratchet wheel (16) drives the lifting plate (21) to rotate, the lifting plate (21) simultaneously generates lifting force to trigger the subsequent lifting mechanism and the safety tongs to act, and drives the brake wheel (24) to rotate, and the brake wheel (24) drives the brake wedge block (28) to approach the guide rail (14) along the brake chute (27) through the notch and the wedge block guide rod (29) and extrudes the brake wheel (24); during overspeed, the centrifugal block of the centrifugal wheel (17) is thrown out to hook the impact block (23), and then the centrifugal wheel (17) drives the impact block (23) to rotate, and the lifting plate (21) and the brake wheel (24) rotate along with the impact block (23).
Further, two sets of speed limiting trigger devices share at least two cross bars (7), the middle of all cross bars (7) passes through and is installed on the floating block (4), the floating block (4) is installed on the fixed point through the pin shaft (3) in a swinging mode, sliding seats (31) and compression springs (8) of the two sets of speed limiting trigger devices are respectively arranged on two sides of the cross bars (7), the sliding seats (31) are simultaneously matched with all the cross bars (7), and the compression springs (8) are independently matched with all the cross bars (7).
Further, both sides of the floating block (4) on the cross rod (7) are respectively provided with a cross rod spring pad (5) and a cross rod nut (6), and the cross rod nuts (6) on both sides clamp the cross rod spring pads (5) on both sides of the floating block (4) in pairs, so that the axial positioning and the installation of the cross rod (7) on the floating block (4) are realized.
Further, two layers of end plates (9) are sleeved at two ends of the cross rod (7), the end plates (9) are simultaneously matched with all the cross rods (7), the outer layer of end plates (9) are locked through bolts (10) on the cross rods (7), the inner layer of end plates (9) are tightly pressed on the compression springs (8), adjusting bolts (11) are matched between the two layers of end plates (9), and the adjusting bolts (11) are operated to adjust gaps of the two layers of end plates (9) so as to adjust pretightening force of the compression springs (8).
Further, the brake wedge (28) is matched with a return spring (25), and the return spring (25) provides a return force for the brake wedge (28) when the brake wheel (24) is reversed, so that the notch and the wedge guide rod (29) are prevented from being blocked.
Further, one end of a central shaft (35) passes through the sliding seat (31) and abuts against the sliding seat (31) through a shaft shoulder, and the central shaft (35) is locked and fixed on the sliding seat (31) through a sliding block nut (34), a flat pad (32) and a sliding block elastic pad (33) at the end part.
Further, friction wheel (15) is overlapped on center pin (35) through bearing (42), the one end of bearing (42) supports on the flange of center pin (35), the other end is spacing by bearing end cover (43), bearing end cover (43) are installed on center pin (35) through axle head nut (44), ratchet (16) and centrifugal wheel (17) are located the outside and the inboard of friction wheel (15) respectively, striking piece (23) and brake wheel (24) are located the both sides of carrying pulling plate (21) respectively and are equipped with friction disc (40) between the three, adjust the interval through locating washer (41) between centrifugal wheel (17) and striking piece (23), locating washer (41) support on the flange of center pin (35).
Further, an adjusting nut (36), an inclined pressing plate (37), an adjusting washer (38) and a single-sided friction plate (39) which are matched with the central shaft (35) limit the brake wheel (24).
Further, the friction wheel (15) is made of friction material as a whole or a friction surface.
Further, two axisymmetric centrifugal blocks are arranged on the centrifugal wheel (17), the centrifugal blocks are connected through a synchronizing rod to realize synchronization, and the tail ends of the centrifugal blocks can be hooked with the impact blocks (23).
The beneficial effects of the invention are as follows:
the speed limiter is provided with two speed limiting triggers simultaneously, one is triggered by an electric trigger switch (13) when a speed limiting instruction is received or overspeed is detected, the other is triggered by a centrifugal wheel (17) when overspeed is detected, the triggering effects of the two are the same, the safety tongs are driven to act, a brake wedge block (28) is driven to extrude a brake wheel (24), after the brake wedge block (28) extrudes the brake wheel (24), the positive pressure of a friction wheel (15) and a guide rail (14) is improved, the brake wheel (24) is braked, the rotating speed of each rotating part on a central shaft (35) is reduced in a linkage manner, the friction wheel (15) is finally braked, the friction wheel (15) and the guide rail (14) are converted into sliding friction through rolling friction, elevator braking is increased, and after triggering braking, each part is reversed, and then the elevator can be reset.
The speed limiter omits a steel wire rope with a through length, so that the elevator shaft is relatively tidy, the rope winding risk is reduced, and the speed limiter can be suitable for various elevators (a common single-shaft single-car, a double-sub elevator, a circulating elevator and the like); the speed limiter can realize triggering at any speed, not only can meet the requirements of anti-falling protection, but also can meet the requirements of anti-collision protection; besides the safety clamp braking protection, the speed limiter can also be braked by a friction wheel (15), so that safety redundancy is increased.
Drawings
Fig. 1 is an overall schematic of a follower governor attached to a car in an embodiment of the present invention.
Fig. 2 is a front view of a follower governor attached to a car in an embodiment of the present invention.
Fig. 3 is a top view of a follower governor attached to a car in an embodiment of the present invention.
Fig. 4 is a right side view of the following governor attached to the car in an embodiment of the present invention.
Fig. 5 is an shafting diagram of a speed limit trigger in an embodiment of the present invention.
In the figure: 1-a base; 2-L-shaped blocks; 3-pin shafts; 4-a slider; 5-a cross bar spring pad; 6-a cross bar nut; 7-a cross bar; 8-compressing a spring; 9-end plates; 10-bolts; 11-adjusting bolts; 12-bending the plate; 13-an electrical trigger switch; 14-a guide rail; 15-friction wheel; 16-ratchet wheel; 17-a centrifuge wheel; 18-a baffle; 19-baffle frame; 20-an electromagnetic action mechanism; 21-a lifting plate; 22-connecting plates; 23-bump block; 24-braking wheel; 25-a return spring; 26-spring end plates; 27-a braking chute; 28-brake wedge; 29-wedge guide bar; 30-slot plate; 31-a slide; 32-flat pad; 33-a slider spring pad; 34-a slider nut; 35-central axis; 36-adjusting the nut; 37-inclined pressing plate; 38-an adjusting washer; 39—single-sided friction plate; 40-friction plate; 41-positioning washers; 42-bearing; 43-bearing end cap; 44-shaft end nut.
Detailed Description
The invention is further described below with reference to the drawings and examples.
As shown in fig. 1 to 5, a follower speed limiter attached to a car is mounted on a car frame and includes two sets of speed limiting trigger devices located on both sides of a guide rail 14; the speed limiting trigger device comprises a cross rod 7, a braking chute 27 and a braking wedge 28 matched on the braking chute 27, wherein a slide seat 31 is sleeved on the cross rod 7 in a sliding supporting manner, a pressing spring 8 is sleeved on the slide seat 31, a central shaft 35 is fixedly installed on the slide seat 31, a friction wheel 15, a ratchet wheel 16, a centrifugal wheel 17, a lifting plate 21, a striking block 23 and a braking wheel 24 are sleeved on the central shaft 35 in an axial limiting manner, the pressing spring 8 presses the slide seat 31 to enable the friction wheel 15 to be tightly and rotatably attached to a guide rail 14, the friction wheel 15, the ratchet wheel 16 and the centrifugal wheel 17 are synchronously connected, the lifting plate 21, the striking block 23 and the braking wheel 24 are synchronously connected through a friction plate 40, an electric trigger switch 13 capable of detecting the rotating speed of the friction wheel 15 is arranged on the slide seat 31, the electric trigger switch 13 is installed on the slide seat 31 through a bending plate 12, an electromagnetic actuating mechanism 20 and a baffle 18 are arranged on the lifting plate 21, the baffle 18 is supported and guided by a baffle frame 19 on the lifting plate 21, the lifting plate 21 is connected with the lifting mechanism and a safety tongs through a connecting plate 22, a notch plate 30 is arranged on the braking wheel 24, and the notch plate 30 is matched with a guide rod 29 on the braking wedge 28 through a notch; when the electric trigger switch 13 receives a speed limiting instruction or detects overspeed, the electromagnetic actuating mechanism 20 is triggered to drive the baffle 18 to clamp the pawl of the ratchet 16, then the ratchet 16 drives the lifting plate 21 to rotate, the lifting plate 21 simultaneously generates lifting force to trigger the subsequent lifting mechanism and the safety tongs to act, the brake wheel 24 is driven to rotate, and the brake wheel 24 drives the brake wedge 28 to approach the guide rail 14 along the brake chute 27 through the notch and the wedge guide rod 29 and to squeeze the brake wheel 24; during overspeed, the centrifugal block of the centrifugal wheel 17 is thrown out to hook the impact block 23, and then the centrifugal wheel 17 drives the impact block 23 to rotate, and the lifting plate 21 and the brake wheel 24 rotate along with the impact block 23. The speed limiter has two speed limiting triggers simultaneously, one is triggered by the electric trigger switch 13 when receiving a speed limiting instruction or detecting overspeed, the other is triggered by the centrifugal wheel 17 when overspeed, the triggering effects of the two triggers are the same, the safety tongs are driven to act, the brake wedge 28 is driven to squeeze the brake wheel 24, after the brake wedge 28 squeezes the brake wheel 24, the positive pressure of the friction wheel 15 and the guide rail 14 is improved, the brake wheel 24 is braked, the rotating speed of each rotating part on the central shaft 35 is reduced in a linkage manner, the friction wheel 15 is finally stopped, the friction wheel 15 and the guide rail 14 are converted into sliding friction from rolling friction, elevator braking is increased, and after triggering braking, each part is reversed, and the elevator can be reset.
As shown in fig. 1 to 5, in the present embodiment, two sets of speed limiting trigger devices share at least two cross bars 7, the middle of all cross bars 7 passes through and is mounted on a slider 4, the slider 4 is swingably mounted on a fixed point through a pin 3, the sliding seats 31 and the compression springs 8 of the two sets of speed limiting trigger devices are respectively provided on both sides of the cross bars 7, the sliding seats 31 are simultaneously fitted on all cross bars 7, and the compression springs 8 are individually fitted on each cross bar 7. The floating block 4 is C-shaped and is arranged on the L-shaped block 2 in a swinging way through the pin shaft 3, and the L-shaped block 2 and the braking chute 27 are arranged on the car frame through the base 1. The arrangement ensures that two groups of speed limiting triggering devices of the device can adaptively swing according to the trend of the guide rail 14, and ensures the positive pressure of the friction wheel 15 and the guide rail 14.
As shown in fig. 1 to 5, in this embodiment, two sides of the slider 4 on the cross rod 7 are provided with a cross rod spring pad 5 and a cross rod nut 6, and the cross rod nuts 6 on two sides clamp the cross rod spring pad 5 on two sides of the slider 4, so as to realize axial positioning and installation of the cross rod 7 on the slider 4. This arrangement ensures a symmetrical installation.
As shown in fig. 1 to 5, in this embodiment, two layers of end plates 9 are sleeved at two ends of the cross rod 7, the end plates 9 are simultaneously matched with all the cross rods 7, the outer layer of end plates 9 are locked by bolts 10 on the cross rod 7, the inner layer of end plates 9 are pressed on the compression springs 8, adjusting bolts 11 are matched between the two layers of end plates 9, and the adjusting bolts 11 are operated to adjust the gap between the two layers of end plates 9 so as to adjust the pretightening force of the compression springs 8. The adjusting bolt 11 is operated to adjust the positive pressure of the friction wheel 15 on the guide rail 14, so that the friction wheel 15 is ensured not to slip during operation.
As shown in fig. 1 to 5, in the present embodiment, the brake wedge 28 cooperates with a return spring 25, and the return spring 25 provides a return force to the brake wedge 28 when the brake wheel 24 is reversed, preventing the notch and the wedge guide 29 from seizing. The return spring 25 is mounted on a spring end plate 26, and the spring end plate 26 is mounted on the car frame through the base 1. The reliability is improved.
As shown in fig. 1 to 5, in the present embodiment, one end of a center shaft 35 passes through a slider 31 and abuts on the slider 31 through a shoulder, and the center shaft 35 is locked and fixed on the slider 31 through a slider nut 34, a flat pad 32 and a slider spring pad 33 at the end.
As shown in fig. 1 to 5, in the present embodiment, the friction wheel 15 is sleeved on the central shaft 35 through a bearing 42, one end of the bearing 42 abuts against a flange of the central shaft 35, the other end of the bearing 42 is limited by a bearing end cover 43, the bearing end cover 43 is mounted on the central shaft 35 through a shaft end nut 44, the ratchet wheel 16 and the centrifugal wheel 17 are respectively positioned on the outer side and the inner side of the friction wheel 15, the striking block 23 and the brake wheel 24 are respectively positioned on the two sides of the pulling plate 21, friction plates 40 are arranged between the two, the space between the centrifugal wheel 17 and the striking block 23 is adjusted through a positioning washer 41, and the positioning washer 41 abuts against the flange of the central shaft 35.
As shown in fig. 1 to 5, in the present embodiment, the brake wheel 24 is restrained by an adjusting nut 36, an inclined pressing plate 37, an adjusting washer 38 and a single-sided friction plate 39 which are fitted on the center shaft 35.
In this embodiment, friction wheel 15 is made of a friction material as a whole or a friction surface.
In this embodiment, two axisymmetric centrifugal blocks are arranged on the centrifugal wheel 17, the centrifugal blocks are connected by a synchronizing rod to realize synchronization, and the tail ends of the centrifugal blocks can be hooked with the impact blocks 23.
The speed limiter omits a steel wire rope with the through length, so that the elevator shaft is relatively tidy, the rope winding risk is reduced, and the speed limiter can be suitable for various different elevators such as a common single shaft single car, a double-sub elevator, a circulating elevator and the like; the speed limiter can realize triggering at any speed, not only can meet the requirements of anti-falling protection, but also can meet the requirements of anti-collision protection; besides the safety clamp braking protection, the speed limiter can also be braked by the friction wheel 15, so that safety redundancy is increased.
It will be understood that modifications and variations will be apparent to those skilled in the art from the foregoing description, and it is intended that all such modifications and variations be included within the scope of the following claims.
Claims (10)
1. A follower governor attached to a car, characterized by: the speed limiting trigger devices are arranged on the car frame and comprise two groups of speed limiting trigger devices positioned on two sides of the guide rail (14); the speed limiting trigger device comprises a cross rod (7), a brake chute (27) and a brake wedge (28) matched on the brake chute (27), wherein a slide seat (31) is sleeved on the cross rod (7) in a sliding supporting manner, a compression spring (8) is sleeved on the slide seat (31), a central shaft (35) is fixedly arranged on the slide seat (31), a friction wheel (15), a ratchet wheel (16), a centrifugal wheel (17), a lifting plate (21), an impact block (23) and a brake wheel (24) are sleeved on the central shaft (35) in an axial limiting manner, the compression spring (8) compresses the slide seat (31) to enable the friction wheel (15) to be tightly rolled and attached to a guide rail (14), the friction wheel (15), the ratchet wheel (16) and the centrifugal wheel (17) are synchronously connected, the lifting plate (21), the impact block (23) and the brake wheel (24) are synchronously connected through the friction plate (40), an electric trigger switch (13) capable of detecting the rotating speed of the friction wheel (15) is arranged on the slide seat (31), an electromagnetic action mechanism (20) and a baffle plate (18) are arranged on the lifting plate (24), and a notch plate (30) is arranged on the brake wheel (24) and matched with the wedge (29) on the brake wedge (28) through the notch; the electric trigger switch (13) triggers the electromagnetic actuating mechanism (20) to drive the baffle plate (18) to clamp the pawl of the ratchet wheel (16) when receiving a speed limiting instruction or detecting overspeed, then the ratchet wheel (16) drives the lifting plate (21) to rotate, the lifting plate (21) simultaneously generates lifting force to trigger the subsequent lifting mechanism and the safety tongs to act, and drives the brake wheel (24) to rotate, and the brake wheel (24) drives the brake wedge block (28) to approach the guide rail (14) along the brake chute (27) through the notch and the wedge block guide rod (29) and extrudes the brake wheel (24); during overspeed, the centrifugal block of the centrifugal wheel (17) is thrown out to hook the impact block (23), and then the centrifugal wheel (17) drives the impact block (23) to rotate, and the lifting plate (21) and the brake wheel (24) rotate along with the impact block (23).
2. The follower speed limiter attached to a car of claim 1, wherein: the two groups of speed limiting triggering devices share at least two cross bars (7), the middle of all the cross bars (7) passes through and are installed on the floating blocks (4), the floating blocks (4) are installed on fixed points in a swinging mode through the pin shafts (3), sliding seats (31) and compression springs (8) of the two groups of speed limiting triggering devices are respectively arranged on two sides of the cross bars (7), the sliding seats (31) are simultaneously matched with all the cross bars (7), and the compression springs (8) are independently matched with all the cross bars (7).
3. The follower speed limiter attached to a car of claim 2, wherein: the two sides of the floating block (4) on the cross rod (7) are respectively provided with a cross rod spring pad (5) and a cross rod nut (6), and the cross rod nuts (6) on the two sides clamp the cross rod spring pads (5) on the two sides of the floating block (4) in pairs, so that the axial positioning and the installation of the cross rod (7) on the floating block (4) are realized.
4. The follower speed limiter attached to a car of claim 2, wherein: two layers of end plates (9) are sleeved at two ends of the cross rod (7), the end plates (9) are simultaneously matched with all the cross rods (7), the outer layer of end plates (9) are locked through bolts (10) on the cross rods (7), the inner layer of end plates (9) are tightly pressed on the compression springs (8), adjusting bolts (11) are matched between the two layers of end plates (9), and the adjusting bolts (11) are operated to adjust the gap between the two layers of end plates (9) so as to adjust the pretightening force of the compression springs (8).
5. The follower speed limiter attached to a car of claim 1, wherein: the brake wedge (28) is matched with a return spring (25), and the return spring (25) provides a return force for the brake wedge (28) when the brake wheel (24) is reversed, so that the notch and the wedge guide rod (29) are prevented from being blocked.
6. The follower speed limiter attached to a car of claim 1, wherein: one end of a central shaft (35) passes through the sliding seat (31) and abuts against the sliding seat (31) through a shaft shoulder, and the central shaft (35) is locked and fixed on the sliding seat (31) through a sliding block nut (34), a flat pad (32) and a sliding block elastic pad (33) at the end part.
7. The follower speed limiter attached to a car of claim 1, wherein: the friction wheel (15) is sleeved on the central shaft (35) through a bearing (42), one end of the bearing (42) is propped against a flange of the central shaft (35), the other end of the bearing is limited by a bearing end cover (43), the bearing end cover (43) is installed on the central shaft (35) through a shaft end nut (44), a ratchet wheel (16) and a centrifugal wheel (17) are respectively positioned on the outer side and the inner side of the friction wheel (15), a striking block (23) and a brake wheel (24) are respectively positioned on two sides of a lifting plate (21) and are provided with friction plates (40), a space is adjusted between the centrifugal wheel (17) and the striking block (23) through a positioning gasket (41), and the positioning gasket (41) is propped against the flange of the central shaft (35).
8. The follower speed limiter attached to a car of claim 1, wherein: the brake wheel (24) is limited by an adjusting nut (36), an inclined pressing plate (37), an adjusting washer (38) and a single-sided friction plate (39) which are matched with the central shaft (35).
9. The follower speed limiter attached to a car of claim 1, wherein: the friction wheel (15) is made of friction material as a whole or a friction surface.
10. The follower speed limiter attached to a car of claim 1, wherein: two axisymmetric centrifugal blocks are arranged on the centrifugal wheel (17), the centrifugal blocks are connected through a synchronizing rod to realize synchronization, and the tail ends of the centrifugal blocks can be hooked with the impact blocks (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111365909.3A CN114104901B (en) | 2021-11-18 | 2021-11-18 | Follow-up speed limiter attached to car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111365909.3A CN114104901B (en) | 2021-11-18 | 2021-11-18 | Follow-up speed limiter attached to car |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114104901A CN114104901A (en) | 2022-03-01 |
| CN114104901B true CN114104901B (en) | 2023-05-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111365909.3A Active CN114104901B (en) | 2021-11-18 | 2021-11-18 | Follow-up speed limiter attached to car |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2264897B1 (en) * | 2005-07-08 | 2007-11-01 | Orona, S. Coop. | OVERVOLTAGE DETECTOR MECHANISM IN LIFTING EQUIPMENT, SAFETY DEVICE FOR ACTION AGAINST OVERVOLTAGE AND LIFTING DEVICE. |
| CN103264938A (en) * | 2013-05-15 | 2013-08-28 | 宁波欧菱电梯配件有限公司 | Motion testing driving mechanism |
| JP6326600B2 (en) * | 2014-12-10 | 2018-05-23 | フジテック株式会社 | Elevator governor |
| CN108455403B (en) * | 2018-03-22 | 2023-12-01 | 南通中力科技有限公司 | Car follow-up elevator speed limiter |
| CN110182665B (en) * | 2019-06-18 | 2024-04-02 | 广州广日电梯工业有限公司 | Speed limiting protection device, elevator and method thereof |
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2021
- 2021-11-18 CN CN202111365909.3A patent/CN114104901B/en active Active
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| Publication number | Publication date |
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| CN114104901A (en) | 2022-03-01 |
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