CN108423512B - Elevator speed limiter without machine room - Google Patents
Elevator speed limiter without machine room Download PDFInfo
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- CN108423512B CN108423512B CN201810180541.5A CN201810180541A CN108423512B CN 108423512 B CN108423512 B CN 108423512B CN 201810180541 A CN201810180541 A CN 201810180541A CN 108423512 B CN108423512 B CN 108423512B
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- reset
- assembly
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- brake
- plate
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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
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
- B66B5/06—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed electrical
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
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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 machine-room-less elevator speed limiter, which comprises a bracket, wherein a speed limiter switch is arranged at the upper part of the bracket, a reset screw for driving the speed limiter switch to reset is arranged on the speed limiter switch, a rope pulley component is arranged in the bracket, a brake component is arranged on one side of the rope pulley component, a stop block component which is hinged on a side wall and is used for triggering the brake component to work is also arranged in the rope pulley mechanism, a pituitary component is also arranged in one side of the stop block component, a driving rod which extends out of a side plate is arranged on one side of the stop block component, the machine-room-less elevator speed limiter further comprises a mechanical triggering reset mechanism for driving the driving rod to move, and an electric reset mechanism for driving the reset screw to drive the speed limiter switch to reset.
Description
Technical Field
The invention relates to a speed limiter for an elevator, in particular to a speed limiter for an elevator without a machine room.
Background
The elevator speed limiter is one of safety control components in an elevator safety protection system, when an elevator is in operation, the elevator overspeed and even the falling danger occur no matter what reason, and under the condition that all other safety protection devices do not work, the speed limiter and the safety tongs perform linkage action to stop the elevator car, but the current elevator cannot realize the functions of manually triggering braking, manually resetting braking and manually remotely resetting an electric switch remotely when in operation detection, and needs close-range operation, so that a lot of potential safety hazards can be caused.
Disclosure of Invention
The invention solves the technical problem of providing a machine-room-less elevator speed limiter capable of realizing remote triggering and resetting.
The technical scheme adopted for solving the technical problems is as follows: the elevator speed limiter without the machine room comprises a bracket, wherein a speed limiter switch is arranged at the upper part of the bracket, a reset screw for driving the speed limiter switch to reset is arranged on the speed limiter switch, the bracket comprises a bottom plate and a side wall, a rope pulley component is arranged in the bracket, the rope pulley component comprises a rope pulley mechanism for winding a steel wire rope and a ratchet mechanism, a brake component is arranged on one side of the rope pulley component, a stop block component hinged on the side wall and used for triggering the brake component to work is also arranged in the rope pulley mechanism, a pituitary component for driving the stop block component to rotate is also arranged in the rope pulley mechanism, a driving rod extending out of the side plate is arranged on one side of the stop block component, and the elevator speed limiter further comprises a mechanical triggering reset mechanism for driving the driving rod to move, so that the stop block body can trigger the brake component to trigger or reset, and an electrical reset mechanism for driving the reset screw to move so that the speed limiter switch to reset;
the electric reset mechanism comprises an electric trigger fixing plate fixed on the side wall, an electric reset plate capable of moving relative to the electric trigger fixing plate is arranged on the electric trigger plate, a first reset through hole for a reset screw to pass through is formed in the electric reset plate, and a first brake cable for pulling the electric reset plate to move is arranged on the electric reset plate.
Further is: the first reset through hole is a fan-shaped through hole, the arc edge of the fan-shaped through hole faces the first brake cable, third kidney-shaped holes are formed in two sides of the electric reset plate, and the electric reset plate further comprises first fixing screws which penetrate through the third kidney-shaped holes and are fixed on the electric trigger fixing plate.
Further is: the mechanical triggering reset mechanism comprises a mechanical reset plate which is arranged on the side wall and can move relative to the side wall, a second touch reset through hole is formed in the mechanical reset plate, the driving rod stretches out of the second touch reset through hole, a second brake wire is arranged on one side of the mechanical reset plate, and a third brake wire is arranged on the other side of the mechanical reset plate.
Further is: the second touch reset through hole is of a parallelogram structure, a fourth kidney-shaped hole is formed in the mechanical reset plate, the second touch reset through hole further comprises a second fixing screw, the second fixing screw penetrates through the fourth kidney-shaped hole to be fixed on the side wall, a guide kidney-shaped groove which plays a role in guiding the driving rod is further formed in the side wall, and two ends of the guide kidney-shaped groove are located between two opposite angles of the parallelogram structure.
Further is: the electric reset fixing plate, the mechanical trigger fixing plate and the mechanical reset fixing plate are respectively arranged on the side wall along the directions of the first brake cable, the second brake cable and the third brake cable, the first brake cable, the second brake cable and the third brake cable respectively penetrate through the electric reset fixing plate, the mechanical trigger fixing plate and the mechanical reset fixing plate, the first brake cable is further sleeved with a first reset spring, the first reset spring is located between the electric reset plate and the electric reset fixing plate, the second brake cable is further sleeved with a second reset spring, the second reset spring is located between the mechanical trigger fixing plate and the mechanical reset fixing plate, and the third brake cable is further sleeved with a third reset spring, and the third reset spring is located between the mechanical reset fixing plate and the mechanical reset fixing plate.
Further is: the brake assembly comprises a compression spring which is vertically arranged, the lower end of the compression spring is fixed on a bottom plate, a pawl which can be clamped into a ratchet mechanism is arranged at the upper end of the compression spring, a third through hole is formed in the lower portion of the pawl, the brake assembly further comprises a brake shoe, a first kidney-shaped hole is formed in the upper portion of the brake shoe, a fifth kidney-shaped hole is formed in the lower portion of the brake shoe, a second through hole which is formed in the upper portion of the side wall of the brake assembly and a second kidney-shaped hole which is formed in the lower portion of the side wall of the brake assembly are arranged, and the brake assembly further comprises a brake shoe shaft which penetrates through the second through hole and a brake shaft which penetrates through the second kidney-shaped hole, the pawl is arranged on the brake shaft through the third through hole, and the brake shoe is arranged on the brake shoe shaft through the fifth kidney-shaped hole, and the first kidney-shaped hole penetrates through the brake shoe shaft.
Further is: the pituitary assembly comprises a first pituitary assembly and a second pituitary assembly, the first pituitary assembly comprises a first pituitary support, one end of the first pituitary support is hinged with the rope wheel assembly, the other end of the first pituitary support is provided with a first pituitary, one side of the first pituitary is provided with a first rod which can be contacted with the stop block assembly, and the other side of the first pituitary is provided with a first connecting shaft which passes through the first pituitary support;
the second pituitary assembly comprises a second pituitary support, one end of the second pituitary support is hinged with the rope wheel assembly, the other end of the second pituitary support is provided with a second pituitary, one side of the second pituitary is provided with a second driving rod which can be contacted with the stop block assembly, the other side of the second pituitary is provided with a second linkage shaft which penetrates through the second pituitary support, and the first pituitary assembly and the second pituitary assembly are further provided with a spring mechanism for controlling the movement radius of the first pituitary assembly and the second pituitary assembly.
Further is: the rope pulley assembly is characterized by further comprising a connecting rod, the middle part of the connecting rod is installed in the middle of the rope pulley assembly through a bearing and synchronously rotates along with the rope pulley assembly, kidney-shaped limiting holes are formed in two ends of the connecting rod, and the two kidney-shaped limiting holes are respectively sleeved on the first connecting shaft and the second connecting shaft.
Further is: the spring mechanism also comprises a screw rod, a spring stop block is arranged on one side of the second pituitary body support close to the second pituitary body, a spring penetrating hole is arranged in the spring stop block, one end of the screw rod is arranged at the hinge joint of the first pituitary body support and the rope pulley component through a fixed copper block, the other end of the screw rod penetrates through the spring penetrating hole, two spring fixing washers are arranged at one end of the screw rod penetrating through the spring stop block, and the spring is sleeved on the screw rod and located between the two spring fixing washers.
Further is: the stop assembly comprises a stop body, the middle of the stop body is hinged to the side wall of the support, one end of the stop assembly is provided with a glass bead screw which is in contact with the pawl and used for blocking the pawl, and the other end of the stop assembly is provided with a set screw which is used for receiving external rotation force of the pituitary assembly.
The beneficial effects of the invention are as follows: when the elevator speed limiter without the machine room is used for braking detection, even if the speed limiter does not exceed a limiting speed, the operation such as remote triggering and resetting can be performed in a manual brake line pulling mode, so that the operation is not needed to be performed manually close to the speed limiter, the safety in the braking detection is improved, the compression spring is designed to be of a vertical structure by the braking component, and the braking structure can realize the braking action on the rope pulley component only by occupying a small space on one side of the rope pulley component by the linkage design of the compression spring, the brake shoe shaft and the pawl, thereby greatly reducing the occupied space of the elevator speed limiter and enabling the elevator speed limiter to be suitable for small space use.
Drawings
Fig. 1 is a main view of an elevator governor
Fig. 2 is a schematic of an elevator governor.
Fig. 3 is an exploded view of an elevator governor.
Fig. 4 is a schematic view of a stent.
Fig. 5 is a schematic diagram of a sheave mechanism.
Fig. 6 is a schematic diagram of a first pituitary assembly.
Fig. 7 is a schematic diagram of a second pituitary assembly.
Fig. 8 is a schematic view of a spring mechanism.
FIG. 9 is a schematic diagram of block components.
Marked in the figure as: the brake shoe comprises a bracket 1, a speed limiter switch 2, a rope pulley mechanism 3, a ratchet mechanism 4, a compression spring 5, a pawl 6, a third through hole 7, a brake shoe 8, a first kidney hole 9, a fifth kidney hole 10, a second through hole 11, a second kidney hole 12, a brake shoe shaft 13, a brake shaft 14, a stop assembly 15, a stop body 151, a bead screw 152, a set screw 153, a first pituitary assembly 16, a first pituitary bracket 161, a first pituitary 162, a first lever 163, a first linkage 164, a second pituitary assembly 17, a second pituitary bracket 171, a second pituitary 172, a second lever 173, a second linkage 174, a spring stop 175, a spring mechanism 18, a screw 181, a fixed copper block 182, a spring fixing washer 183, a spring 184, a connecting rod 19, a kidney limiting hole 20, a driving rod 21, an electric trigger fixing plate 22, an electric reset plate 23, a first reset through hole 24, a first brake wire 25, a third kidney hole 26, a first fixing screw 27, a mechanical reset plate 28, a second touch reset plate 29, a second reset through hole 29, a second reset wire 30, a third reset wire 31, a third reset wire 33, a guide spring fixing screw 34, a second reset plate 32, a second reset wire fixing plate 32, a third reset wire 33, a fourth reset wire fixing screw 37, a guide spring fixing plate 32, a fourth reset wire 37, a fourth reset wire fixing screws and a guide plate.
Detailed Description
The invention is further described below with reference to the drawings and the detailed description.
The elevator speed limiter without machine room as shown in fig. 1 to 3 comprises a bracket 1, wherein a speed limiter switch 2 is arranged at the upper part of the bracket 1, a reset screw 41 for driving the speed limiter switch to reset is arranged on the speed limiter switch, the bracket 1 comprises a bottom plate and side walls, a rope pulley assembly is arranged in the bracket 1, the rope pulley assembly comprises a rope pulley mechanism 3 and a ratchet mechanism 4 which are used for winding a steel wire rope, one side of the rope pulley assembly is provided with a brake assembly, the rope pulley assembly further comprises a stop block assembly 15 hinged on the side walls and used for triggering the brake assembly to work, a pituitary assembly for driving the stop block assembly 15 to rotate is further arranged in the rope pulley mechanism 3, a driving rod 21 extending out of a side plate is arranged on one side of the stop block assembly, and the elevator speed limiter comprises a mechanical triggering reset mechanism for driving the driving rod 21 to move, so that the stop block body can trigger the brake assembly to trigger or reset, and an electrical reset mechanism for driving the reset screw 41 to move so that the speed limiter switch is subjected to reset operation; the electric reset mechanism comprises an electric trigger fixed plate 22 fixed on the side wall, an electric reset plate 23 capable of moving relative to the electric trigger fixed plate 22 is arranged on the electric trigger plate, a first reset through hole 24 through which a reset screw 41 can pass is arranged in the electric reset plate 23, a first brake wire 25 for pulling the electric reset plate 23 to move is arranged on the electric reset plate 23, particularly when a braking test is carried out, the manual control mechanical trigger reset mechanism applies trigger force to the driving rod 21, so that the driving rod 21 drives a stop block assembly to move, the interference force of the stop block assembly to the braking mechanism disappears, the braking mechanism brakes the rope pulley assembly, when the braking mechanism needs to reset, the stop block assembly recovers the interference force to the braking mechanism, so that the braking assembly resets, the braking of the rope pulley assembly disappears, the braking reset operation is realized, meanwhile, the electric reset plate 23 drives the reset screw 41 to move downwards, the circuit is enabled to reset, the elevator can continue to move, and even if the elevator can move, the speed of the elevator is not limited by the normal speed of the elevator, and the speed limiter is not required to be detected by the normal operation, and the speed limiter is not required to be detected by the manual operation, and the speed limiter is not required to be detected.
On the basis of the above, as shown in fig. 1, the first reset through hole 24 is a fan-shaped through hole, the circular arc edge of the fan-shaped through hole faces the first brake cable 25, the third kidney-shaped holes 26 are arranged on two sides of the electric reset plate 23, the first reset through hole further comprises a first fixing screw 27, the first fixing screw 27 is fixed on the electric trigger fixing plate 22 through the third kidney-shaped holes 26, the electric reset plate 23 can move along a certain direction between the third kidney-shaped holes 26 and the first fixing screw 27 due to the arrangement of the third kidney-shaped holes 26, and the fan-shaped through hole is designed so that no matter where the initial position of the reset screw 41 is, the reset through hole can reset to the same position under the driving of the fan-shaped through hole, so that the accuracy of the reset operation is ensured.
On the basis, as shown in fig. 1, the mechanical triggering reset mechanism comprises a mechanical reset plate 28 which is arranged on the side wall and can move relative to the side wall, a second touch reset through hole 29 is formed in the mechanical reset plate 28, the driving rod 21 extends out of the second touch reset through hole 29, a second brake wire 30 is arranged on one side of the mechanical reset plate 28, a third brake wire 31 is arranged on the other side of the mechanical reset plate 28, the second touch reset through hole 29 is of a parallelogram structure, a fourth kidney hole 32 is formed in the mechanical reset plate 28, the mechanical reset mechanism further comprises a second fixing screw 33, the second fixing screw 33 penetrates through the fourth kidney hole 32 and is fixed on the side wall, a guide kidney groove 34 which plays a guiding role on the driving rod 21 is further formed in the side wall, two ends of the guide kidney groove 34 are positioned between two opposite angles of the parallelogram structure, when a brake trigger is carried out, the second brake wire 30 is manually pulled, the mechanical reset plate 28 moves towards the second brake wire 30, the driving rod 21 moves towards the direction of the second brake wire 30, the driving rod 21 makes the reset plate move towards the direction of the rope pulley, the reset assembly is required to move towards the direction of the second brake wire 31, and the reset assembly is enabled to move towards the direction of the reset assembly, the reset assembly is enabled to be enabled to move towards the direction of the parallelogram assembly, and the reset assembly is enabled to stop assembly, the reset assembly is enabled to move towards the direction of the reset assembly, and the reset assembly is enabled to move towards the direction of the brake wire 31, and the reset assembly is enabled to move towards the direction and the direction, and the reset assembly is enabled to move towards the direction line.
On the basis of the above, as shown in fig. 1, the side wall is respectively provided with an electric reset fixing plate 38, a mechanical trigger fixing plate 39 and a mechanical reset fixing plate 40 along the directions of the first brake cable 25, the second brake cable 30 and the third brake cable 31, the first brake cable 25, the second brake cable 30 and the third brake cable 31 respectively pass through the electric reset fixing plate 38, the mechanical trigger fixing plate 39 and the mechanical reset fixing plate 40, the first brake cable 25 is further sleeved with a first reset spring 35, the first reset spring 35 is positioned between the electric reset plate 23 and the electric reset fixing plate 38, the second brake cable 30 is further sleeved with a second reset spring 36, the second reset spring 36 is positioned between the mechanical trigger fixing plate 39 and the mechanical reset fixing plate 28, the third brake cable 31 is further sleeved with a third reset spring 37, the third return spring 37 is located between the mechanical return fixing plate 40 and the mechanical return fixing plate 28, and the first return spring 35, the second return spring 36 and the third return spring 37 are arranged so that when the three brake wires pull the electrical return plate 23, the mechanical trigger fixing plate 39 and the mechanical return fixing plate 40 to perform the triggering and returning actions respectively, the electrical return plate 23, the mechanical trigger fixing plate 39 and the mechanical return fixing plate 40 can return to the original positions, thereby performing the next round of triggering or returning operation, and because the first return through hole 24 is a fan-shaped through hole, the second return through hole 29 is a parallelogram structure, so that after the electrical return plate 23, the mechanical trigger fixing plate 39 and the mechanical return fixing plate 40 are returned, the return screw 41 and the driving rod 21 triggered by the electrical return plate 23, the mechanical trigger fixing plate 39 and the mechanical return fixing plate 40 do not generate a returning condition, thereby reducing the likelihood of false triggers.
On the basis of the above, as shown in fig. 2 and 3, the brake assembly comprises a compression spring 5 which is vertically arranged, the lower end of the compression spring 5 is fixed on a bottom plate, a pawl 6 which can be clamped into a ratchet mechanism 4 is arranged at the upper end of the compression spring 5, a third through hole 7 is arranged at the lower part of the pawl 6, the brake assembly further comprises a brake shoe 8, a first kidney-shaped hole 9 is arranged at the upper part of the brake shoe 8, a fifth kidney-shaped hole 10 is arranged at the lower part of the brake shoe 8, a second through hole 11 which is arranged at the upper part and a second kidney-shaped hole 12 which is arranged at the lower part are arranged on the side wall of the brake assembly, a brake shoe shaft 13 which passes through the second through hole 11 and a brake shaft 14 which passes through the second kidney-shaped hole 12 are arranged, the pawl 6 is arranged on the brake shaft 14 through the third through hole 7, the brake shoe 8 is arranged on the brake shoe shaft 13 through the fifth kidney-shaped hole 10, the first kidney-shaped hole 9 passes through the brake shoe shaft 13, a stop assembly 15 which is hinged on the side wall and is used for stopping the pawl 6, a speed limiter assembly 3 is arranged in the elevator driving mechanism, and a speed limiter assembly is arranged on the elevator driving mechanism as follows: when the elevator reaches the speed limit of the speed limiter, the descending speed of the elevator is increased, so that the rotating speed of the rope pulley assembly is increased, namely the centrifugal force borne by the pituitary assembly is increased, the movement radius of the pituitary assembly is increased, the pituitary assembly firstly collides with the speed limiter switch 2, the power supply of the elevator is cut off, the traction machine brake acts, and the elevator is stopped; if the action of a traction machine brake is not timely or invalid, the pituitary assembly continuously rotates to the driving rod 21 of the stop assembly 15, so that the stop assembly 15 rotates, the stop assembly 15 loses the blocking force to the pawl 6, the pawl 6 is clamped into the ratchet mechanism 4 under the driving of the compression spring 5, at the moment, the ratchet mechanism 4 still continuously rotates downwards for a certain distance along with the rope pulley mechanism 3, so that the pawl 6 drives the compression spring 5 to downwards, and simultaneously drives the brake shaft 14 to move to the lower part of the second kidney-shaped hole 12 when downwards pressing, so that the brake shoe 8 is mounted on the brake shaft 14 through the fifth kidney-shaped hole 10, so that the lower end of the brake shoe 8 moves downwards along with the direction of the rope pulley assembly under the limit of the first kidney-shaped hole 9, and a steel wire rope in the rope pulley assembly is clamped for playing a braking role.
On the basis of the above, as shown in fig. 5 to 7, the pituitary assembly comprises a first pituitary assembly 16 and a second pituitary assembly 17, the first pituitary assembly 16 comprises a first pituitary support 161, one end of the first pituitary support 161 is hinged with the rope pulley assembly, the other end of the first pituitary support 161 is provided with a first pituitary 162, one side of the first pituitary 162 is provided with a first beating rod 163 which can be contacted with the stop assembly 15, and the other side of the first pituitary 162 is provided with a first connecting shaft 164 which passes through the first pituitary support 161; the second pituitary assembly 17 comprises a second pituitary support 171, one end of the second pituitary support 171 is hinged with the rope wheel assembly, the other end of the second pituitary support 171 is provided with a second pituitary 172, one side of the second pituitary 172 is provided with a second beating rod 173 which can be contacted with the stop assembly 15, the other side of the second pituitary 172 is provided with a second linkage shaft 174 which passes through the second pituitary support 171, the first pituitary assembly 16 and the second pituitary assembly 17 are also provided with a spring mechanism 18 which is used for controlling the movement radius of the first pituitary assembly 16 and the second pituitary assembly 17, when the rope wheel assembly rotates normally, the movement radius of the first pituitary assembly 16 and the second pituitary assembly 17 is small under the action of the spring mechanism 18, so that the pituitary assembly can not beat the stop assembly 15 in the rotating process, thereby triggering the subsequent braking assembly, when the elevator exceeds the limiting speed of the speed limiter, the speed of the elevator car is increased, the rotation speed of the rope wheel assembly increases, so that the centrifugal force of the first pituitary assembly 16 and the second pituitary assembly 17 is increased, and the second pituitary assembly 17 can be triggered by the second pituitary assembly 17, and the second pituitary assembly 17 can be triggered by the accurate, and the second pituitary assembly can be triggered by the second pituitary assembly 17, and the second pituitary assembly can be triggered by the second pituitary assembly, and the second pituitary assembly can be triggered by the speed, and the second pituitary assembly, and the brake assembly can be triggered by the speed.
On the basis of the above, as shown in fig. 5, the device further comprises a connecting rod 19, the middle part of the connecting rod 19 is installed in the middle of the rope pulley assembly through a bearing and synchronously rotates along with the rope pulley assembly, two ends of the connecting rod 19 are respectively provided with kidney-shaped limiting holes 20, the two kidney-shaped limiting holes 20 are respectively sleeved on a first connecting shaft 164 and a second connecting shaft 174, and the arrangement of the connecting rod 19 can limit the movement radius of the first pituitary assembly 16 and the second pituitary assembly 17, so that after the movement radius of the first pituitary assembly 16 and the second pituitary assembly 17 is increased, the movement radius of the first pituitary assembly 16 and the second pituitary assembly 17 can only be within the limit range of the kidney-shaped limiting holes 20, and therefore, the first beating rod 163 or the second beating rod 173 can accurately beat the speed limiter switch 2 and the stop assembly 15 under overspeed conditions.
On the basis of the above, as shown in fig. 8, the spring mechanism 18 further comprises a screw rod 181, a spring stop 175 is arranged on one side of the second pituitary body support 171 near the second pituitary body support 172, a spring through hole is arranged in the spring stop 175, one end of the screw rod 181 is arranged at the hinge position of the first pituitary body support 161 and the rope pulley component through a fixed copper block 182, the other end of the screw rod 181 penetrates through the spring through hole, two spring fixing washers 183 are arranged on one end of the screw rod 181 penetrating through the spring stop 175, the springs 184 are sleeved on the screw rod 181 and are positioned between the two spring fixing washers 183, in the normal rotation process, the opposite ends of the first pituitary body support 161 and the second pituitary body support 171 are acted by the springs 184, so that the first pituitary body support 161 and the second pituitary body support 171 rotate within a small movement radius range, and the centrifugal force increased by the first pituitary body component 16 and the second pituitary body component 17 overcomes the spring 184 force, so that the movement radius of the first pituitary body component 16 and the second pituitary body component 17 is increased, and the second pituitary body component 172 is increased, and the brake component 173 is not braked, and the brake component is driven by the brake component is not started, and the brake component is stopped, 15 is stopped, and the brake component is not braked.
On the basis of the above, as shown in fig. 9, the stop assembly 15 includes a stop body 151, the middle part of the stop body 151 is hinged to the side wall of the bracket 1, one end of the stop assembly 15 is provided with a bead screw 152 contacting with the pawl 6 for blocking the pawl 6, the other end of the stop assembly 15 is provided with a set screw 153 for receiving the external rotation force of the pituitary assembly, in the original state, the end of the bead screw 152 of the stop assembly 15 is in contact with the pawl 6, so that the pawl 6 cannot be blocked in the ratchet mechanism 4, when the end of the set screw 153 is subjected to the external force given by the pituitary assembly, the stop body 151 rotates around the hinge point, so that the interference force of the bead screw 152 to the pawl 6 disappears, and the brake assembly is triggered to perform the braking operation.
While the foregoing is directed to embodiments of the present invention, other and further details of the invention may be had by the present invention, it should be understood that the foregoing description is merely illustrative of the present invention and that no limitations are intended to the scope of the invention, except insofar as modifications, equivalents, improvements or modifications are within the spirit and principles of the invention.
Claims (8)
1. The utility model provides a no computer lab elevator overspeed governor, includes support (1), and overspeed governor switch (2) are installed on support (1) upper portion, be provided with on the overspeed governor switch and order about reset screw (41) that overspeed governor switch reset, support (1) include bottom plate and lateral wall, its characterized in that: the rope pulley assembly is arranged in the support (1), the rope pulley assembly comprises a rope pulley mechanism (3) and a ratchet mechanism (4) which are used for winding a steel wire rope, one side of the rope pulley assembly is provided with a brake assembly, the rope pulley assembly further comprises a stop block assembly (15) hinged to the side wall and used for triggering the brake assembly to work, a pituitary assembly which drives the stop block assembly (15) to rotate is further arranged in the rope pulley mechanism (3), one side of the stop block assembly is provided with a driving rod (21) which stretches out of the side plate, the rope pulley assembly further comprises a mechanical triggering reset mechanism which drives the driving rod (21) to move, and the stop block assembly can trigger the brake assembly to trigger or reset, and further comprises an electrical reset mechanism which drives a reset screw (41) to move so that the speed limiting switch performs reset operation;
the electric reset mechanism comprises an electric trigger fixed plate (22) fixed on the side wall, an electric reset plate (23) capable of moving relative to the electric trigger fixed plate (22) is arranged on the electric trigger fixed plate, a first reset through hole (24) through which a reset screw (41) can pass is arranged in the electric reset plate (23), and a first brake cable (25) for pulling the electric reset plate (23) to move is arranged on the electric reset plate (23);
the first reset through hole (24) is a fan-shaped through hole, the arc edge of the fan-shaped through hole faces the first brake cable (25), third kidney-shaped holes (26) are formed in two sides of the electric reset plate (23), the electric reset plate further comprises first fixing screws (27), and the first fixing screws (27) penetrate through the third kidney-shaped holes (26) to be fixed on the electric trigger fixing plate (22);
the brake assembly comprises a compression spring (5) which is vertically arranged, the lower end of the compression spring (5) is fixed on a bottom plate, a pawl (6) which can be clamped into a ratchet mechanism (4) is arranged at the upper end of the compression spring (5), a third through hole (7) is formed in the lower portion of the pawl (6), the brake assembly further comprises a brake shoe (8), a first kidney-shaped hole (9) is formed in the upper portion of the brake shoe (8), a fifth kidney-shaped hole (10) is formed in the lower portion of the brake shoe (8), a second through hole (11) which is arranged on the upper portion and a second kidney-shaped hole (12) which is arranged on the lower portion are arranged on the side wall of the brake assembly, a brake shoe shaft (13) which penetrates through the second through hole (11) and a brake shaft (14) which penetrates through the second kidney-shaped hole (12) are arranged on the brake shaft (14), and the brake shoe (8) is arranged on the brake shaft (14) through the fifth kidney-shaped hole (10).
2. The machine-roomless elevator governor of claim 1, wherein: the mechanical triggering reset mechanism comprises a mechanical reset plate (28) which is arranged on the side wall and can move relative to the side wall, a second touch reset through hole (29) is formed in the mechanical reset plate (28), the driving rod (21) stretches out of the second touch reset through hole (29), a second brake wire (30) is arranged on one side of the mechanical reset plate (28), and a third brake wire (31) is arranged on the other side of the mechanical reset plate (28).
3. The machine-roomless elevator governor of claim 2, wherein: the second touch reset through hole (29) is of a parallelogram structure, a fourth kidney-shaped hole (32) is formed in the mechanical reset plate (28), the mechanical reset touch reset through hole further comprises a second fixing screw (33), the second fixing screw (33) penetrates through the fourth kidney-shaped hole (32) to be fixed on the side wall, a guide kidney-shaped groove (34) which plays a guide role in the driving rod (21) is further formed in the side wall, and two ends of the guide kidney-shaped groove (34) are located between two opposite angles of the parallelogram structure.
4. A machine-roomless elevator governor as defined in claim 3, wherein: the electric reset fixing plate (38), the mechanical trigger fixing plate (39) and the mechanical reset fixing plate (40) are respectively arranged on the side wall along the directions of the first brake cable (25), the second brake cable (30) and the third brake cable (31), the first brake cable (25), the second brake cable (30) and the third brake cable (31) respectively penetrate through the electric reset fixing plate (38), the mechanical trigger fixing plate (39) and the mechanical reset fixing plate (40), the first brake cable (25) is further sleeved with a first reset spring (35), the first reset spring (35) is located between the electric reset plate (23) and the electric reset fixing plate (38), the second brake cable (30) is further sleeved with a second reset spring (36), the second reset spring (36) is located between the mechanical trigger fixing plate (39) and the mechanical reset fixing plate (28), the third brake cable (31) is further sleeved with a third reset spring (37), and the third reset spring (37) is located between the mechanical reset fixing plate (40) and the mechanical reset fixing plate (28).
5. The machine-roomless elevator governor of claim 1, wherein: the pituitary assembly comprises a first pituitary assembly (16) and a second pituitary assembly (17), the first pituitary assembly (16) comprises a first pituitary support (161), one end of the first pituitary support (161) is hinged with the rope pulley assembly, the other end of the first pituitary support (161) is provided with a first pituitary (162), one side of the first pituitary (162) is provided with a first beating rod (163) which can be contacted with the stop assembly (15), and the other side of the first pituitary (162) is provided with a first connecting shaft (164) which penetrates through the first pituitary support (161);
the second pituitary assembly (17) comprises a second pituitary support (171), one end of the second pituitary support (171) is hinged with the rope wheel assembly, a second pituitary (172) is mounted at the other end of the second pituitary support (171), a second beating rod (173) which can be contacted with the stop assembly (15) is arranged on one side of the second pituitary (172), a second linkage shaft (174) which penetrates through the second pituitary support (171) is arranged on the other side of the second pituitary (172), and a spring mechanism (18) which is used for controlling the movement radius of the first pituitary assembly (16) and the second pituitary assembly (17) is further arranged on the first pituitary assembly (16) and the second pituitary assembly (17).
6. The machine-roomless elevator governor of claim 5, wherein: the rope pulley assembly is characterized by further comprising a connecting rod (19), the middle part of the connecting rod (19) is installed in the middle of the rope pulley assembly through a bearing and synchronously rotates along with the rope pulley assembly, waist-shaped limiting holes (20) are formed in two ends of the connecting rod (19), and the two waist-shaped limiting holes (20) are respectively sleeved on a first connecting shaft (164) and a second connecting shaft (174).
7. The machine-roomless elevator governor of claim 6, wherein: the spring mechanism (18) comprises a screw rod (181), a spring stop block (175) is arranged on one side, close to the second pituitary body (172), of the second pituitary body support (171), a spring passing hole is formed in the spring stop block (175), one end of the screw rod (181) is installed at the hinge joint of the first pituitary body support (161) and the rope pulley assembly through a fixed copper block (182), the other end of the screw rod (181) passes through the spring passing hole, two spring fixing washers (183) are arranged at one end, penetrating through the spring stop block (175), of the screw rod (181), and the spring (184) is sleeved on the screw rod (181) and is located between the two spring fixing washers (183).
8. The machine-roomless elevator governor of claim 1, wherein: the stop assembly (15) comprises a stop body (151), the middle of the stop body (151) is hinged to the side wall of the support (1), one end of the stop assembly (15) is provided with a wave bead screw (152) which is in contact with the pawl (6) and used for blocking the pawl (6), and the other end of the stop assembly (15) is provided with a set screw (153) which is used for receiving external rotation force of the pituitary assembly.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810180541.5A CN108423512B (en) | 2018-03-05 | 2018-03-05 | Elevator speed limiter without machine room |
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| CN108423512B true CN108423512B (en) | 2023-06-13 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110963387B (en) | 2018-09-29 | 2022-06-10 | 奥的斯电梯公司 | Overspeed protection switch, speed limiter assembly and elevator system |
| CN111268532B (en) | 2018-12-04 | 2022-08-30 | 奥的斯电梯公司 | Overspeed protection switch, overspeed governor assembly, and elevator system |
| CN110217667B (en) * | 2019-06-13 | 2023-12-05 | 苏州尼隆机电科技有限公司 | Direct-push reset elevator speed limiter |
| CN110282520B (en) * | 2019-07-09 | 2021-05-04 | 宁波元吉智能科技有限公司苏州分公司 | Manual testing device |
| CN110316635B (en) * | 2019-07-09 | 2021-02-02 | 宁波元吉智能科技有限公司苏州分公司 | Manual resetting device |
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| JP2002020056A (en) * | 2000-07-03 | 2002-01-23 | Toshiba Elevator Co Ltd | Speed governor for elevator |
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