CN216004837U

CN216004837U - Elevator overspeed governor subassembly and elevator

Info

Publication number: CN216004837U
Application number: CN202122250183.0U
Authority: CN
Inventors: 马理想; 周元林; 王振宇; 周佳; 秦健聪
Original assignee: Dongnan Elevator Co Ltd
Current assignee: Dongnan Elevator Co Ltd
Priority date: 2021-09-17
Filing date: 2021-09-17
Publication date: 2022-03-11
Anticipated expiration: 2031-09-17

Abstract

The utility model discloses an elevator overspeed governor subassembly and elevator, the elevator includes the car, leading rail, safety tongs and elevator overspeed governor subassembly, elevator overspeed governor subassembly is including installing the last guide pulley bracket in the elevator well, install the last guide pulley on last guide pulley bracket, install in the elevator well and with a plurality of guide bracket that last guide pulley bracket parallel set up, install on guide bracket and with leading rail parallel set's tensioning guide rail, sliding connection is in the frame on tensioning guide rail, install the overspeed governor on the frame, wire rope on the rope sheave of last guide pulley and overspeed governor, a tip is fixed in the safety tongs handle on the wire rope, safety tongs handle sets up with the safety tongs linkage of car. The well bottom is located to the balancing weight, and the tensile force is conveniently adjusted, and multiplicable or reduction balancing weight come to adjust the tension size, and is convenient, swift, and reducible maintainer amount of labour provides maintenance efficiency.

Description

Elevator overspeed governor subassembly and elevator

Technical Field

The utility model belongs to the elevator equipment field, in particular to elevator overspeed governor subassembly and elevator.

Background

The problem of tensioning of elevator governor systems is a frequently encountered problem in elevator installation and use, and when the elevator runs at a large lifting height and a large acceleration or runs obliquely, how to ensure the normal function of the governor is always the direction of technical improvement. Various brands of elevator manufacturers are devoted to the design of the governor system tensioning structure. In the safety device of the elevator, a speed limiter-safety system is an extremely important safety component, when the running speed of an elevator car reaches the action speed of the speed limiter of the elevator, the speed limiter blocks a steel wire rope, the car still continues to run at the moment, and the steel wire rope blocks and is immovable, so that a safety tongs linkage mechanism arranged on a car frame can be pulled and lifted in a linkage manner, the safety tongs are made to act, and the car is stopped by a tong column guide rail. In the prior art, elevator overspeed governor generally adopts cantilever type overspeed governor or spring overspeed governor to be fixed in pit ground, but all has following problem:

1. once the tensioner is selected, the tension is fixed and difficult to adjust; the weight of a heavy hammer of the swing arm type tensioning device is fixed, the fulcrum and the distance are basically fixed, and the tensioning force is not adjustable; the tension is provided by the spring, and once the length of the steel wire rope is determined, the tension is also determined to be unchanged;

2. the steel wire rope can extend due to stress, and the swing arm type tensioning device can droop, so that misoperation of a switch is easily caused; the elongation of the spring is reduced, and the tension of the steel wire rope is synchronously reduced;

3. in an elevator with a large lifting height, because the height is large and the length of a steel wire rope is large, the speed limiter drives the tension device to act when acting due to insufficient tension of the tension device and dead weight of the steel wire rope, and then safety action is influenced;

4. the overspeed governor is generally installed at top computer lab, in the high elevator of big promotion, if the overspeed governor breaks down or the malfunction, personnel need climb very big height and just can reach the top and operate or overhaul, influence efficiency, increase personnel's amount of labour.

Disclosure of Invention

The utility model aims at providing an elevator overspeed governor subassembly has strengthened wire rope's tension controllability and convenient operation nature, has promoted the convenience of elevator overspeed governor subassembly inspection and operation, has better economic nature and practical function.

In order to solve the technical problem, the utility model adopts the following technical scheme: the utility model provides an elevator overspeed governor subassembly, it including install in the elevator well last guide pulley support, install in go up last guide pulley on the guide pulley support, install in the elevator well and with go up a plurality of guide rail brackets that guide pulley bracket parallel set up, install in on the guide rail bracket and with leading guide rail parallel set up tensioning guide rail, sliding connection in frame on the tensioning guide rail, install in overspeed governor on the frame, around in go up the guide pulley with wire rope, a tip on the rope sheave of overspeed governor are fixed in safety tongs handle on the wire rope, safety tongs handle sets up with the safety tongs linkage of car.

Preferably, the guide rail bracket is fixedly mounted on the main guide rail, and the main guide rail is used for guiding the car.

Preferably, the elevator governor assembly further includes a limit stop that prevents the frame from falling off.

Furthermore, the limiting part comprises a limiting switch arranged on the frame, and an upper limiting impact bow and a lower limiting impact bow arranged on the tensioning guide rail.

Furthermore, the upper limit impact bow and the lower limit impact bow are positioned on the same tensioning guide rail and on the same side of the tensioning guide rail, and one limit switch is arranged on the frame and positioned between the upper limit impact bow and the lower limit impact bow.

Preferably, the elevator governor assembly includes a counterweight fixed to the frame.

Further, the counterweight is fixed at the lower end of the frame.

Preferably, the elevator governor assembly includes a frame guide shoe fixedly mounted to an outer side of the frame, the frame guide shoe being clamped to the tensioning rail.

Furthermore, a clamping groove is arranged on the side surface of the frame guide shoe, which faces the tensioning guide rail, and the clamping groove is clamped on the tensioning guide rail.

The utility model discloses a safety tongs handle drives when safety tongs handle does not drive the action, safety tongs with main guide rail slidable relatively works as the safety tongs handle drives during the action, safety tongs seizes the car is stopped to main guide rail system.

The beneficial effects of the utility model reside in that: the counterweight block is arranged at the bottom of the well, the tension force is convenient to adjust, the counterweight block can be increased or decreased to adjust the tension force, and the operation is convenient and rapid; can adapt to equivalent elongation of the steel wire rope; when the steel wire rope stretches in a small range, the frame slides a small amount along the tensioning guide rail, and the tension of the steel wire rope is kept unchanged; in the high elevator of big promotion, the influence of wire rope dead weight to carrying the action is difficult to the quantization, and the experimental adjustment many times of needs of on-the-spot actual tension, the increase and decrease of control balancing weight, convenient operation, reducible maintainer amount of labour provides maintenance efficiency.

Drawings

Fig. 1 is a schematic view of the structure of the elevator governor assembly of the present invention shown in fig. 1 (the car and the safety gear are prior art, not the focus of the present invention, and are not described herein and not shown in the drawings);

FIG. 2 is an illustration of the installation of the upper guide wheel and upper guide wheel bracket of the present invention;

fig. 3 is an assembly diagram of the steel wire rope, the tensioning guide rail, the guide rail bracket, the speed limiter, the upper limit impact bow, the frame guide shoe, the frame, the limit switch, the lower limit impact bow and the counterweight of the utility model.

Detailed Description

The invention will be described in detail below with reference to an exemplary embodiment shown in the drawings:

as shown in fig. 1-3, the elevator includes a car, a main guide rail, a safety gear and an elevator speed limiter assembly, the elevator speed limiter assembly includes an upper guide wheel bracket 1 installed in an elevator shaft, an upper guide wheel 2 installed on the upper guide wheel bracket, a plurality of guide rail brackets 5 installed in the elevator shaft and arranged in parallel with the upper guide wheel bracket, a tensioning guide rail 4 installed on the guide rail brackets and arranged in parallel with the main guide rail, a frame 9 connected to the tensioning guide rail in a sliding manner, a speed limiter 6 installed on the frame, a steel wire rope 3 wound around rope wheels of the upper guide wheel and the speed limiter, a safety gear handle 02 having one end fixed on the steel wire rope, a limiting part for preventing the frame from falling off, a counterweight 12 fixed on the frame, and a frame guide shoe 8 fixedly installed outside the frame. The safety gear handle 02 is linked with the safety gear of the car, the guide rail bracket is fixedly arranged on the main guide rail 01, and the main guide rail is used for guiding the car. The limiting part comprises a limiting switch 10 arranged on the frame, an upper limiting impact bow and a lower limiting impact bow arranged on the tensioning guide rail. The upper limit impact bow 7 and the lower limit impact bow 11 are positioned on the same tensioning guide rail and on the same side of the tensioning guide rail, and one limit switch is arranged on the frame and positioned between the upper limit impact bow and the lower limit impact bow. The balancing weight is fixed at the lower end of the frame. The frame guide shoe is clamped on the tensioning guide rail. The side surface of the frame guide shoe, which faces the tensioning guide rail, is provided with a clamping groove, and the clamping groove is clamped on the tensioning guide rail.

The safety tongs are clamped on the main guide rail, when the safety tongs handle does not drive the safety tongs to act, the safety tongs and the main guide rail can slide relatively, and when the safety tongs handle drives the safety tongs to act, the safety tongs clamp the main guide rail to brake the lift car.

Specifically, the method comprises the following steps: the upper guide wheel bracket 1 is fixed on a main guide rail of the elevator through a special pressure guide plate for the elevator, the upper guide wheel 2 is arranged on the upper guide wheel bracket 1, and the combination of the upper guide wheel bracket 1 and the upper guide wheel 2 is arranged in the top layer area of a hoistway; tensioning guide rail 4 has two, all install on leading guide rail 01 through guide rail bracket 5, guide rail bracket 5 has two and sets up with leading guide rail parallel, go up the spacing bow 7 that hits, the spacing bow 11 that hits is installed on one of them row of tensioning guide rail 4 down, overspeed governor 6 is connected with frame 9, frame guide shoe 8 has 4, install respectively in frame 9 four corners, and frame guide shoe 8 card respectively goes into on tensioning guide rail 4, there are 2 frame guide shoe 8 on every tensioning guide rail 4, limit switch 10 installs on frame 9, correspond the spacing bow 7 that hits, the spacing bow 11 one side that hits is down. Tensioning guide rail 4, guide rail support 5, overspeed governor 6, upper limit hit bow 7, frame guide shoe 8, frame 9, limit switch 10, lower limit hits bow 11, and a plurality of balancing weights 12 are installed in the well pit.

The action principle is as follows: the steel wire rope 3 upwards rounds the upper guide wheel 2 from the safety gear handle 02, downwards passes through the rope wheel on the speed limiter 6, and then upwards rounds the safety gear handle to form a ring. When the elevator runs, the steel wire rope 3 is driven to move through the safety tongs handle, the steel wire rope 3 runs along the guide wheels of the upper guide wheel 2 and the speed limiter 6, when the car runs overspeed, the steel wire rope 3 synchronously runs overspeed, the guide wheel driving the speed limiter 6 runs overspeed and is rotated to enable the card on the speed limiter 6 to move, the steel wire rope 3 is locked, and as the steel wire rope 3 is locked and fixed, the tension of the steel wire rope 3 is enough, the safety tongs handle arranged on the car frame can be lifted in a linkage manner, the safety tongs move, and the main guide rail of the tongs column stops the car.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. An elevator governor assembly, characterized by: it including install in the elevator well last guide pulley bracket, install in go up last guide pulley on the guide pulley bracket, install in the elevator well and with go up a plurality of guide rail brackets that guide pulley bracket parallel set up, install in on the guide rail bracket and with leading guide rail parallel set's tensioning guide rail, sliding connection in frame on the tensioning guide rail, install in overspeed governor on the frame, wind in go up the guide pulley with wire rope, an end on the rope sheave of overspeed governor are fixed in safety tongs handle on the wire rope, safety tongs handle sets up with the safety tongs linkage of car.

2. The elevator governor assembly of claim 1, wherein: the guide rail bracket is fixedly arranged on the main guide rail, and the main guide rail is used for guiding the car.

3. The elevator governor assembly of claim 1, wherein: the elevator governor assembly also includes a limit stop that prevents the frame from falling.

4. The elevator governor assembly of claim 3, wherein: the limiting part comprises a limiting switch arranged on the frame, and an upper limiting impact bow and a lower limiting impact bow which are arranged on the tensioning guide rail.

5. The elevator governor assembly of claim 4, wherein: the upper limit impact bow and the lower limit impact bow are positioned on the same tensioning guide rail and on the same side of the tensioning guide rail, and one limit switch is arranged on the frame and positioned between the upper limit impact bow and the lower limit impact bow.

6. The elevator governor assembly of claim 1, wherein: the elevator governor assembly includes a counterweight fixed to the frame.

7. The elevator governor assembly of claim 6, wherein: the balancing weight is fixed at the lower end of the frame.

8. The elevator governor assembly of claim 1, wherein: the elevator speed limiter assembly comprises a frame guide shoe fixedly mounted on the outer side of the frame, and the frame guide shoe is clamped on the tensioning guide rail.

9. The elevator governor assembly of claim 8, wherein: and a clamping groove is arranged on the side surface of the frame guide shoe, which faces the tensioning guide rail, and the clamping groove is clamped on the tensioning guide rail.

10. An elevator, its includes car, main guide rail, safety tongs and elevator overspeed governor assembly, its characterized in that: the elevator speed limiter assembly is the elevator speed limiter assembly in any one of claims 1 to 9, the safety gear is clamped on the main guide rail, when the safety gear handle does not drive the safety gear to act, the safety gear and the main guide rail can slide relatively, and when the safety gear handle drives the safety gear to act, the safety gear clamps the main guide rail to brake the car.