Portable speed limiter dynamic test triggering device
By using a portable speed governor dynamic test triggering device, which simulates the high-speed operation of the speed governor using components such as a fixed clamp and a convex ball shaft, the problem of the elevator speed governor failing to trigger was solved, and the linkage test of the safety clamp was realized, thus reducing the modification cost.
Patent Information
- Application Number
- CN202420715284.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-09
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2034-04-09
AI Technical Summary
The existing elevator speed governors lack high-speed triggering devices, making it impossible to conduct speed governor-safety gear linkage tests. This results in failure to meet the new inspection standards and increases the economic burden of replacing the speed governors.
Design a portable speed limiter dynamic test triggering device. Through the combination of a fixed clamp, a convex ball shaft, a power spring and a limiting pawl, the clamp is disengaged by a pull line, so that the convex ball shaft triggers the speed limiter mechanical device under the action of the power spring, simulating high-speed running conditions.
It enables convenient speed limiter-safety gear linkage testing without replacing the speed limiter, meeting the new inspection standards and reducing modification costs.
Smart Images
Figure CN223687884U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of speed limiter, concretely to a portable speed limiter dynamic test trigger device. BACKGROUND
[0002] The elevator speed limiter is one of the safety protection devices of the elevator, which monitors and controls the speed of the elevator car. When the elevator overspeeds, runs out of control or the suspension device breaks, the elevator runs at a speed exceeding 115% of the rated speed, a signal can be sent in time, and then a mechanical action is generated to cut off the power supply circuit, so that the traction machine brakes. If the elevator still cannot be braked, the safety gear installed at the bottom of the car acts to quickly stop the elevator car on the guide rail and keep it in a stationary state, thereby avoiding accidents of personnel injury and equipment damage.
[0003] The "Elevator Manufacturing and Installation Safety Specification Part 1: Passenger Elevators and Cargo Elevators" (GB / T 7588.1-2020, implemented on July 1, 2022, hereinafter referred to as "new edition of manufacturing standard") and "Elevator Supervision and Inspection and Periodic Inspection Rules" (TSG T7001-2023, implemented on April 2, 2023, with a transition period of 1 year, hereinafter referred to as "new edition of inspection rules") stipulate that for elevators with a rated speed of not more than 4.0 m / s, the elevator car should be loaded with a load of 125% of the rated load when descending at the rated speed to perform the speed limiter-safety gear linkage test.
[0004] For newly manufactured and installed elevators, the elevator manufacturer has designed and produced speed limiters with high-speed dynamic test triggering function according to the requirements of the relevant standards and inspection rules. During the installation supervision and inspection, the high-speed rotating speed limiter can be triggered when the elevator is descending at the rated speed, thereby realizing the high-speed heavy load speed limiter-safety gear test. However, for elevators not manufactured according to the new edition of the manufacturing standard and the new edition of the inspection rules, if the speed limiter does not have a high-speed triggering device during subsequent modification and major repair supervision and inspection, the speed limiter must be replaced to meet the requirements of the new edition of the inspection rules, which greatly increases the economic burden of the user and causes serious waste. UTILITY MODEL CONTENTS
[0005] The utility model aims to provide a portable speed limiter dynamic test triggering device to solve the problem that the speed limiter of the existing elevator does not have a high-speed triggering device and cannot perform the speed limiter-safety gear linkage test.
[0006] To achieve the above object, the utility model provides the following technical scheme: A portable speed limiter dynamic test trigger device, including fixed clamping upper cover plate, the bottom surface of fixed clamping upper cover plate is installed two fixed clamping plates, one of the fixed clamping plates is equipped with hand screw, the board surface of another fixed clamping plate is installed two support plates, the opposite position of two support plates is respectively equipped with through -hole, the through -hole is slidably penetrated with convex ball axle, one end of convex ball axle is fixedly installed with convex ball, the top of two support plates is fixedly installed with convex ball axle upper cover plate, the outer lateral wall of two support plates is fixedly sleeved with clamping plate, the clamping plate and the support plate away from convex ball are fixedly connected with power spring, the power spring is sleeved on the outside of convex ball axle, the fixed clamping upper cover plate is installed with rotating shaft, the rotating shaft is sleeved with limit pawl, one end of limit pawl is abutted with clamping plate, the other end of limit pawl is connected with pull wire, the fixed clamping upper cover plate is equipped with pull wire hole, the pull wire hole is equipped with pull ring, and the pull wire is connected with pull ring.
[0007] As a preferred technical scheme of the utility model: the fixed clamping upper cover plate is installed with fixed pin shaft, the fixed pin shaft is connected with reset spring between limit pawl, and the reset spring is arranged close to pull wire position.
[0008] As a preferred technical scheme of the utility model: the fixed clamping upper cover plate is detachably installed with positioning pin, and the positioning pin is arranged close to the middle position of limit pawl.
[0009] As a preferred technical scheme of the utility model: the end of convex ball axle away from convex ball is sleeved with limit plate.
[0010] As a preferred technical scheme of the utility model: the convex ball axle upper cover plate is equipped with strip -shaped mouth, the clamping plate top is fixedly installed with support rod, and the support rod end is penetrated through strip -shaped mouth.
[0011] The utility model discloses the beneficial effects of the above technical scheme are as follows: the utility model simple structure, clever design, through the fixed clamping plate installation is in the structure spare of no trigger device limiter, utilizes pull wire to drive limit pawl and clamping plate to separate, and then realizes convex ball axle under the action of power spring, drives convex ball to move to the mechanical device on trigger limiter, makes safety tongs action, reaches the purpose of testing, convenient operation, and the practicality is stronger. ACCURACY OF DRAWINGS
[0012] Fig. 1 It is the main body structure schematic drawing of the utility model portable speed limiter dynamic test trigger device;
[0013] Fig. 2 It is the front structure schematic drawing of the utility model.
[0014] In the figure: 1, fixed clamping plate; 2, fixed clamping upper cover plate; 3, hand screw; 4, support plate; 5, convex ball shaft; 6, convex ball shaft upper cover plate; 7, convex ball; 8, clamping plate; 9, power spring; 10, rotating shaft; 11, limit pawl; 12, pull ring; 13, limit plate; 14, positioning pin; 15, fixed pin shaft; 16, reset spring; 17, support rod. DETAILED DESCRIPTION
[0015] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and should not be understood as a limitation of the present application. In the description of the present application, it should be understood that the terms "upper", "lower", "front", "upper surface" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore should not be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be understood as a limitation of the present application. In the present application, unless otherwise specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or can communicate with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0016] Please refer to Figs. 1-2 The present application provides an embodiment: a portable speed limiter dynamic test triggering device, comprising a fixed clamping upper cover plate 2, the bottom surface of the fixed clamping upper cover plate 2 is provided with two fixed clamping plates 1, the two fixed clamping plates 1 are symmetrically arranged along the central axis of the fixed clamping upper cover plate 2, one of the two fixed clamping plates 1 is provided with a hand screw 3, the two fixed clamping plates 1 are clamped on the structure plate of the speed limiter, and the hand screw 3 is used for fixing, so as to install the fixed clamping plate 1.
[0017] The surface of the other fixed clamping plate 1 is provided with two support plates 4, the two support plates 4 are symmetrically arranged along the central axis of the fixed clamping plate 1. The opposite positions of the two support plates 4 are respectively provided with through holes, the convex ball shaft 5 is slidably penetrated in the through holes, one end of the convex ball shaft 5 is fixedly provided with the convex ball 7, the other end of the convex ball shaft 5 is sleeved with the limit plate 13, and the top of the two support plates 4 is fixedly provided with the convex ball shaft upper cover plate 6.
[0018] The convex ball shaft 5 is arranged on the outer side wall of the two support plates 4 and is fixedly sleeved with a clamping plate 8, the clamping plate 8 is fixedly connected with the support plate 4 far away from the convex ball 7, and a power spring 9 is sleeved outside the convex ball shaft 5, and the power spring 9 provides power for the movement of the convex ball 7.
[0019] A strip-shaped opening is formed in the convex ball shaft upper cover plate 6, a supporting rod 17 is fixedly installed on the top of the clamping plate 8, the end of the supporting rod 17 penetrates through the strip-shaped opening, and the supporting rod 17 is slidably arranged in the strip-shaped opening, so that the movement of the convex ball shaft 5 is effectively limited, and the clamping plate 8 is conveniently restored to the working position through the supporting rod 17.
[0020] A rotating shaft 10 is installed on the fixed clamping upper cover plate 2, a limiting pawl 11 is sleeved on the rotating shaft 10, one end of the limiting pawl 11 abuts against the clamping plate 8, and the other end of the limiting pawl 11 is connected with a pull wire, a pull wire hole is formed in the fixed clamping upper cover plate 2, and a pull ring 12 is arranged at the pull wire hole, and the pull wire is connected with the pull ring 12.
[0021] A fixed pin shaft 15 is installed on the fixed clamping upper cover plate 2, a return spring 16 is connected between the fixed pin shaft 15 and the limiting pawl 11, the return spring 16 is arranged close to the pull wire, and a positioning pin 14 is detachably installed on the fixed clamping upper cover plate, and the positioning pin 14 is arranged close to the middle position of the limiting pawl 11. The return spring 16 and the positioning pin 14 are arranged, so that the limiting pawl 11 is stably arranged at the working position.
[0022] Specific embodiment: when the new version of the test regulation is carried out under the heavy load, the speed of the speed limiter-safety pawl linkage test, first, the two fixed clamping plates 1 are clamped to the structure plate of the speed limiter, and are adjusted to the appropriate position, and the hand screw 3 is tightened, so that the whole device is fixed to the speed limiter.
[0023] During the field test, the positioning pin 14 is removed, the elevator is controlled to run at the rated speed to the appropriate floor, then the pull wire is manually pulled and kept, the limiting pawl 11 rotates around the rotating shaft 10 under the action of the pull wire, so that the limiting pawl 11 is separated from the clamping plate 8, the clamping plate 8 drives the convex ball shaft 5 to move along the through hole under the action of the power spring 9, and finally drives the convex ball 7 to trigger the mechanical device on the speed limiter, so that the steel wire rope on the speed limiter pulls the safety pawl mechanism, the safety pawl is actuated, and the test purpose is achieved.
[0024] The embodiments of the utility model are described in detail in combination with the drawings, but the utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the utility model, and still fall within the protection scope of the utility model.
Claims
1. A portable speed limiter dynamic test trigger device, characterized in that: The utility model provides a fixing clamp upper cover plate (2), the bottom surface of the fixing clamp upper cover plate (2) is equipped with two fixing clamp plates (1), one of the fixing clamp plates (1) is equipped with hand screw (3), the board surface of the other fixing clamp plate (1) is equipped with two support plates (4), the opposite position of two support plates (4) is equipped with through -hole respectively, the through -hole is slidably penetrated with convex ball axle (5), one end of convex ball axle (5) is fixedly installed with convex ball (7), the top of two support plates (4) is fixedly installed with convex ball axle upper cover plate (6); The convex ball axle (5) is fixedly sleeved with the clamping plate (8) on the outer side wall of two support plates (4), the clamping plate (8) and the support plate (4) away from the convex ball (7) are fixedly connected with the power spring (9), the power spring (9) is sleeved on the convex ball axle (5) outside; The fixing clamp upper cover plate (2) is installed with the rotating shaft (10), the rotating shaft (10) is sleeved with the limit pawl (11), one end of the limit pawl (11) is abutted with the clamping plate (8), the other end of the limit pawl (11) is connected with the pull wire, the fixing clamp upper cover plate (2) is equipped with pull wire hole, the pull wire hole is equipped with the pull ring (12), the pull wire is connected with the pull ring (12).
2. The portable speed limiter dynamic test trigger device according to claim 1, characterized in that: The fixing clamp upper cover plate (2) is installed with the fixed pin shaft (15), the fixed pin shaft (15) is connected with the limit pawl (11) between reset spring (16), the reset spring (16) is close to the pull wire position setting.
3. A portable speed limiter dynamic test trigger device according to claim 2, characterized in that: The fixing clamp upper cover plate (2) is detachably installed with the positioning pin (14), the positioning pin (14) is close to the middle position setting of limit pawl (11).
4. The portable speed limiter dynamic test trigger device according to claim 1, characterized in that: The convex ball axle (5) is sleeved with the limit plate (13) away from the convex ball (7) one end.
5. The portable speed limiter dynamic test trigger device according to claim 1, characterized in that: The convex ball axle upper cover plate (6) is equipped with strip mouth, the clamping plate (8) top fixed installation has the support rod (17), the support rod (17) end is penetrated through strip mouth.