A safety gear debugging device

Abstract

The present invention belongs to the technical field of safety gear, and particularly relates to a safety gear debugging device, comprising: a base having a safety gear installation position; a simulated elevator guide rail for cooperating with the safety gear installed at the safety gear installation position; the simulated elevator guide rail having a lifting pin; a driving mechanism installed on the base for driving the simulated elevator guide rail to move along its extending direction, so that the lifting pin lifts the wedge block of the safety gear to contact the simulated elevator guide rail, thereby causing the other wedge block of the safety gear to compress the spring of the safety gear; a spring compression amount measuring assembly installed on the base for measuring the spring compression amount of the safety gear; when the spring compression amount reaches the target value, the limit bolt of the safety gear is tightened. The safety gear debugging device of the present invention simulates the braking stroke of the elevator safety gear by the cooperation of the simulated elevator guide rail and the safety gear to be debugged, and thus debugs the position of the safety gear components to ensure the safety and reliability of the safety gear.

Description

Technical Field

[0001] The present invention belongs to the technical field of safety tongs, and particularly relates to a safety tongs debugging device. Background Art

[0002] A safety tong is an important safety component for elevator safety protection, and its safety and reliability directly affect whether the elevator car can be safely stopped. For the safety tong structure disclosed in the patent document with the publication number CA1298214C, its safety and reliability are related to factors such as the spring force of the spring and the position of the limit bolt.

[0003] During the debugging process of the safety tongs, the position of the limit bolt is mostly adjusted manually according to the spring stiffness or empirical parameters, and it is difficult to simulate the actual working conditions of the elevator, resulting in a certain deviation between the debugging result and the actual working conditions. Summary of the Invention

[0004] Based on the above-mentioned disadvantages and deficiencies existing in the prior art, the purpose of the present invention is to provide a safety tongs debugging device.

[0005] In order to achieve the above-mentioned invention purpose, the present invention adopts the following technical solutions:

[0006] A safety tongs debugging device includes:

[0007] A base having a safety tong installation position;

[0008] A simulated elevator guide rail for cooperating with the safety tongs installed at the safety tong installation position; the simulated elevator guide rail has a lifting pin;

[0009] A driving mechanism installed on the base for driving the simulated elevator guide rail to move along its extending direction, so that the lifting pin lifts the wedge block of the safety tongs to contact the simulated elevator guide rail, thereby causing the other wedge block of the safety tongs to compress the spring of the safety tongs;

[0010] A spring compression amount measuring assembly installed on the base for measuring the spring compression amount of the safety tongs;

[0011] When the spring compression amount reaches the target value, tighten the limit bolt on the movable wedge block of the safety tongs. Among them, the limit bolt is on the movable wedge block and moves together with the movable wedge block to limit the upward movement stroke of the movable wedge block.

[0012] As a preferred solution, the spring compression amount measuring assembly includes a first measuring card, a measuring fixed block, and a second measuring card that are sequentially distributed along the spring compression direction of the safety clamp. Guide rods are respectively installed on both sides of the measuring fixed block. The first measuring card and the second measuring card are respectively slidably engaged with the corresponding guide rods. The first measuring card and the second measuring card are respectively arranged corresponding to the two ends of the spring of the safety clamp. The first measuring card is equipped with a displacement sensor and a first air cylinder. The driving end of the first air cylinder is drivingly connected to the second measuring card. When the other wedge block of the safety clamp compresses the spring of the safety clamp, the first measuring card and the second measuring card are simultaneously linked to move closer to the measuring fixed block, and the distance between the first measuring card and the second measuring card is obtained through the displacement sensor to obtain the spring compression amount.

[0013] As a preferred solution, the spring compression amount measuring assembly further includes a lifting mechanism for driving the measuring fixed block to perform lifting activities to approach or move away from the spring of the safety clamp.

[0014] As a preferred solution, the lifting mechanism includes a mounting seat, a lifting air cylinder, a lifting seat, and a guiding column. The mounting seat is installed on the base. One end of the guiding column is fixed to the mounting seat, and the other end extends to be docked with the lifting seat, and the lifting seat is in lifting fit with the guiding column. The lifting air cylinder is installed on the mounting seat, and the driving end of the lifting air cylinder is drivingly connected to the lifting seat for driving the lifting seat to rise or fall. The lifting seat is fixedly connected to the measuring fixed block.

[0015] As a preferred solution, the spring compression amount measuring assembly further includes a first linear guide rail and a first driving air cylinder installed on the base. The guide rail of the first linear guide rail is parallel to the simulated elevator guide rail. The driving end of the first driving air cylinder is drivingly connected to the mounting seat to drive the mounting seat to move along the extending direction of the guide rail of the first linear guide rail.

[0016] As a preferred solution, the spring compression amount measuring assembly further includes a calibration block for calibrating the distance between the first measuring card and the second measuring card.

[0017] As a preferred solution, spring compression amount measuring assemblies are respectively arranged on both sides of the simulated elevator guide rail.

[0018] As a preferred solution, the driving mechanism includes a driving motor, a speed reducer, and a ball screw. The driving motor is drivingly connected to the speed reducer, the speed reducer is drivingly connected to the screw of the ball screw, the nut seat of the ball screw is connected to one end of the simulated elevator guide rail, and the other end of the simulated elevator guide rail is limited by an anti-warping seat installed on the base. The nut seat of the ball screw is also installed on the base through a second linear guide rail, and the guide rail of the second linear guide rail is parallel to the simulated elevator guide rail.

[0019] As a preferred solution, the anti-warping seat includes a seat body, the seat body has a through hole for simulating the penetration of an elevator guide rail, and the seat body is provided with rolling elements for guiding the simulated elevator guide rail movably.

[0020] As a preferred solution, the safety clamp installation position includes a limit seat and a micro-motion seat arranged in sequence along the extension direction of the simulated elevator guide rail. The limit seat is used to limit the movement of the safety clamp along the pulling direction, and the micro-motion seat is used to position the safety clamp along the direction perpendicular to the simulated elevator guide rail and can realize micro-motion along with the linkage of the safety clamp.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] The safety clamp debugging device of the present invention, by simulating the cooperation between the elevator guide rail and the safety clamp to be debugged and simulating the braking stroke test, adjusts the position of the safety clamp components to ensure the safety and reliability of the safety clamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of the safety clamp debugging device according to Embodiment 1 of the present invention;

[0024] Figure 2 is a schematic structural diagram of the safety clamp installation position of the bottom plate according to Embodiment 1 of the present invention;

[0025] Figure 3 is a schematic structural diagram of the safety clamp installation position of the bottom plate according to Embodiment 1 of the present invention from another perspective;

[0026] Figure 4 is a schematic structural diagram of the safety clamp debugging device according to Embodiment 1 of the present invention from another perspective;

[0027] Figure 5 is a schematic structural diagram of the installation structure of the ball screw according to Embodiment 1 of the present invention;

[0028] Figure 6 is a schematic structural diagram of the installation structure of the limit switch according to Embodiment 1 of the present invention;

[0029] Figure 7 is a schematic structural diagram of the spring compression amount measurement assembly according to Embodiment 1 of the present invention;

[0030] Figure 8 is a schematic structural diagram of the spring compression amount measurement assembly according to Embodiment 1 of the present invention from another perspective;

[0031] Figure 9 is a schematic calibration structure diagram of the calibration block according to Embodiment 1 of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0032] In order to more clearly illustrate the embodiments of the present invention, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other accompanying drawings and other implementation methods can be obtained based on these accompanying drawings without creative work.

[0033] Embodiment 1:

[0034] like Figures 1-9 As shown, the safety clamp debugging device of this embodiment includes a base 1 and a simulated elevator guide rail 2 installed on the base 1, a driving mechanism I and a spring compression measurement assembly II.

[0035] like Figure 2 and 3 As shown, the base 1 of this embodiment has a safety clamp installation position W for installing and positioning the safety clamp 0; the safety clamp installation position W includes a limit seat W1 and a micro-motion seat W2 sequentially arranged along the extension direction of the simulated elevator guide rail, and there are two micro-motion seats W2, which are relatively distributed on both sides of the simulated elevator guide rail 2; wherein the limit seat W1 is used to limit the movement of the safety clamp along the pulling direction, and the micro-motion seat W2 is used to position the safety clamp in a direction perpendicular to the simulated elevator guide rail and can realize micro-motion in conjunction with the safety clamp; specifically, the micro-motion seat W2 includes a seat body W-1 and a positioning pin W-2, the positioning pin W-2 extends in a direction perpendicular to the simulated elevator guide rail and is slidably installed on the seat body W-1, and the positioning pin W-2 is used to lean against the clamp body of the safety clamp 0 installed on the safety clamp installation position W, thereby realizing corresponding positioning and micro-motion. wherein the two positioning pins W-2 are combined into one, and the positioning pins pass through the clamp body of the safety clamp, and a hole can be pre-opened in the corresponding clamp body.

[0036] The simulated elevator guide rail 2 of this embodiment is used to cooperate with the safety gear 0 installed on the safety gear installation position W; the simulated elevator guide rail 2 has a lifting pin 20;

[0037] The driving mechanism I of this embodiment is installed on the base 1, and is used to drive the simulated elevator guide rail 2 to move along its extension direction, so that the lifting pin 20 lifts the wedge a of the safety clamp until it contacts the simulated elevator guide rail 2, thereby causing the other wedge b of the safety clamp to compress the spring c of the safety clamp, and the spring c is an elastic member such as a disc spring, a leaf spring, a coil spring, an elastic rod, etc.

[0038] Specifically, the driving mechanism I includes a driving motor 3, a speed reducer 4, and a ball screw. The driving motor 3 is drivingly connected to the speed reducer 4, and the speed reducer 4 is drivingly connected to the screw 5a of the ball screw. The screw 5a of the ball screw is installed on the base 1 through two bearing blocks 5. The nut block 5b of the ball screw is connected to one end of the simulated elevator guide rail 2, and the other end of the simulated elevator guide rail 2 is limited by an anti-warping seat 6 installed on the base. On both sides of the nut block 5b of the ball screw, they are also respectively installed on the base 1 through second linear guide rails 7. The guide rails of the second linear guide rails 7 are parallel to the simulated elevator guide rail 2 to ensure the straightness and stability of the movement of the nut block of the ball screw. In addition, two travel switches K are also installed on the base 1 to control the movement stroke of the nut block.

[0039] Among them, the anti-warping seat 6 includes a seat body 6a. The seat body 6a has a through hole 6b for the simulated elevator guide rail to penetrate. The seat body 6a is provided with rolling elements 6c for guiding the movement of the simulated elevator guide rail. The rolling elements 6c can adopt common rolling elements such as rollers and bearings, which can not only prevent warping but also not affect the movement of the simulated elevator guide rail.

[0040] The spring compression amount measuring assembly II of this embodiment is used to measure the spring compression amount of the safety clamp. Specifically, as Figures 6-8 shown, the spring compression amount measuring assembly II includes a first measuring card 8, a measuring fixed block 9, and a second measuring card 10 that are sequentially distributed along the spring compression direction of the safety clamp. Guide rods 11 are respectively installed on both sides of the measuring fixed block 9. The first measuring card 8 and the second measuring card 10 are respectively slidably fitted on the corresponding guide rods 11. The first measuring card 8 and the second measuring card 10 are respectively arranged corresponding to both ends of the spring c of the safety clamp to measure the compression amount of the spring of the safety clamp. In addition, a displacement sensor 12 and a first cylinder 13 are installed on the first measuring card 8. The driving end of the first cylinder 13 is drivingly connected to the second measuring card 10. When another wedge block b of the safety clamp compresses the spring c of the safety clamp, the first measuring card 8 and the second measuring card 10 are simultaneously linked to move closer to the measuring fixed block 9. The distance between the first measuring card and the second measuring card is obtained through the displacement sensor 12, so as to obtain the spring compression amount.

[0041] Among them, the spring compression amount measuring assembly II further includes a lifting mechanism, which is used to drive the measuring fixed block to move up and down to approach or move away from the spring of the safety clamp. Specifically, the lifting mechanism includes a mounting seat 14, a lifting cylinder 15, a lifting seat 16 and a guiding column 17. The mounting seat 14 is installed on the base 1. One end of the guiding column 17 is fixed to the mounting seat 14, and the other end extends to be docked with the lifting seat 16, and the lifting seat 16 is in lifting cooperation with the guiding column 17; the lifting cylinder 15 is installed on the mounting seat 14, and the driving end of the lifting cylinder 15 is drivingly connected to the lifting seat 16 for driving the lifting seat 16 to rise or fall; the lifting seat 16 is fixedly connected to the measuring fixed block 9. In addition, the spring compression amount measuring assembly further includes a first linear guide rail 18 and a first driving cylinder 19 installed on the base 1. The guide rail of the first linear guide rail 18 is parallel to the simulated elevator guide rail 2, and the driving end of the first driving cylinder 19 is drivingly connected to the mounting seat 14 to drive the mounting seat 14 to move along the extending direction of the guide rail of the first linear guide rail; so as to measure and reset the spring compression amount of the safety clamp.

[0042] As Figure 9 shown, the spring compression amount measuring assembly II of this embodiment further includes a calibration block 21, which is used to calibrate the distance between the first measuring card 8 and the second measuring card 10 before each measurement of the spring compression amount, so as to ensure the accuracy of each measurement of the spring compression amount.

[0043] In addition, for the safety clamp debugging device of this embodiment, spring compression amount measuring assemblies are respectively installed on both sides of the simulated elevator guide rail, so as to perform position debugging on the two-way safety clamp and improve the debugging efficiency.

[0044] For the safety clamp debugging device of this embodiment, by controlling the output torque of the driving motor, starting the driving motor to drive the simulated elevator guide rail to lift the safety clamp, when the spring compression amount reaches the target value, just tighten the limit bolt d on the movable wedge block of the safety clamp to complete the debugging of the safety clamp.

[0045] Embodiment 2:

[0046] The difference between the safety clamp debugging device of this embodiment and that of Embodiment 1 lies in:

[0047] The spring compression amount measuring assembly installed on one side of the simulated elevator guide rail is omitted, and the spring compression amount of the one-way safety clamp can be measured, simplifying the structure and meeting the requirements of different application scenarios;

[0048] Other structures can refer to Embodiment 1.

[0049] Embodiment 3:

[0050] The difference between the safety clamp debugging device of this embodiment and that of Embodiment 1 lies in:

[0051] The driving mechanism can also adopt commonly used existing driving parts or driving mechanisms, as long as it can achieve rapid driving of the rotation of the lead screw of the ball screw;

[0052] Other structures can refer to Embodiment 1.

[0053] The above description only elaborates in detail on the preferred embodiments and principles of the present invention. For those of ordinary skill in the art, according to the idea provided by the present invention, there will be changes in the specific implementation manners, and these changes should also be regarded as the protection scope of the present invention.

Claims

1. A safety gear debugging device, characterized in that, include: Base, with safety clamp mounting position; Simulate the elevator guide rail, used to cooperate with the safety clamp installed on the safety clamp installation position; The simulated elevator guide rail has a lifting pin; A driving mechanism is installed on the base and is used to drive the simulated elevator guide rail to move along its extension direction, so that the lifting pin lifts the wedge of the safety clamp to contact the simulated elevator guide rail, thereby causing the other wedge of the safety clamp to compress the spring of the safety clamp; The spring compression measuring assembly is installed on the base and is used to measure the spring compression of the safety clamp; When the spring compression reaches the target value, tighten the limit bolt on the active wedge of the safety clamp; The spring compression measurement assembly comprises a first measuring card, a measuring fixed block and a second measuring card which are sequentially distributed along the spring compression direction of the safety clamp, guide rods are respectively installed on both sides of the measuring fixed block, and the first measuring card and the second measuring card are respectively slidably matched with the corresponding guide rods; the first measuring card and the second measuring card are respectively arranged corresponding to the two ends of the spring of the safety clamp; the first measuring card is installed with a displacement sensor and a first cylinder, and the driving end of the first cylinder is drivingly connected to the second measuring card; when the other wedge block of the safety clamp compresses the spring of the safety clamp, the first measuring card and the second measuring card are simultaneously linked to move closer to the measuring fixed block, and the distance between the first measuring card and the second measuring card is obtained by the displacement sensor to obtain the spring compression.

2. The safety gear debugging device according to claim 1, characterized in that, The spring compression measurement assembly also includes a lifting mechanism, which is used to drive the measurement fixed block to perform lifting activities to approach or move away from the spring of the safety clamp.

3. The safety gear debugging device according to claim 2, characterized in that, The lifting mechanism includes a mounting seat, a lifting cylinder, a lifting seat and a guide column. The mounting seat is installed on the base, one end of the guide column is fixed to the mounting seat, and the other end extends to dock with the lifting seat, and the lifting seat is lifted and lowered in coordination with the guide column; the lifting cylinder is installed on the mounting seat, and the driving end of the lifting cylinder is connected to the lifting seat for driving the lifting seat to rise or fall; the lifting seat is fixedly connected to the measuring fixed block.

4. The safety tong debugging device according to claim 3, characterized in that, The spring compression measurement assembly also includes a first linear guide rail and a first driving cylinder installed on the base. The guide rail of the first linear guide rail is parallel to the simulated elevator guide rail. The driving end of the first driving cylinder is connected to the mounting seat to drive the mounting seat to move along the extension direction of the guide rail of the first linear guide rail.

5. The safety gear debugging device according to claim 1, characterized in that, The spring compression measurement assembly also includes a calibration block for calibrating the distance between the first measurement card and the second measurement card.

6. A safety gear debugging device according to any one of claims 1-5, characterized in that, Spring compression measurement assemblies are respectively provided on both sides of the simulated elevator guide rail.

7. The safety gear debugging device according to claim 1, characterized in that, The driving mechanism includes a driving motor, a reducer and a ball screw. The driving motor is drivingly connected to the reducer, the reducer is drivingly connected to the screw of the ball screw, the nut seat of the ball screw is connected to one end of the simulated elevator guide rail, and the other end of the simulated elevator guide rail is limited by an anti-warping seat installed on the base; the nut seat of the ball screw is also installed on the base through a second linear guide rail, and the guide rail of the second linear guide rail is parallel to the simulated elevator guide rail.

8. A safety gear debugging device according to claim 7, characterized in that, The anti-tilt seat comprises a seat body, the seat body has a through hole for simulating the penetration of the elevator guide rail, and the seat body is provided with a rolling element for movably guiding the simulated elevator guide rail.

9. A safety gear debugging device according to any one of claims 1-5, characterized in that, The safety clamp installation position includes a limit seat and a micro-motion seat which are sequentially arranged along the extension direction of the simulated elevator guide rail. The limit seat is used to limit the movement of the safety clamp along the pulling direction, and the micro-motion seat is used to position the safety clamp along the direction perpendicular to the simulated elevator guide rail and can realize micro-motion in conjunction with the safety clamp.

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