Car bottom flexible buffering and overload detecting device of industrial figure dual-purpose elevator

Abstract

The utility model relates to a car bottom flexible buffering and overload detecting device of an industrial dual-purpose elevator for people, and belongs to the technical field of industrial elevators. The device structurally comprises a base, an air cylinder body, a strain rod, a bearing table and a compression spring, wherein the upper surface of the base is provided with an inclined surface, the bottom surface of the cylinder body is connected with the inclined surface, an opening in the upper end of the cylinder body is coaxially and hermetically matched with the strain rod through a sealing ring, the bottom of the strain rod is a strain sensing area, and gas sealed in the cylinder body is arranged below the strain sensing area; a lower flange is arranged on the upper surface of the cylinder body, an upper flange is in threaded connection with the periphery of the strain rod, and a compression spring is arranged between the upper flange and the lower flange; the top of the strain rod is coaxially in sliding fit with a bearing table, and the upper surface of the bearing table is a horizontal plane and is connected with the lift car movable bottom. The device can absorb and buffer a large amount of resonance generated during operation of the elevator, and the measurement precision of the weight detection device can be improved.

Description

Technical Field

[0001] The utility model relates to a flexible buffering and overload detection device for the bottom of an industrial dual-purpose elevator for people and vehicles, belonging to the technical field of industrial elevators. Background Art

[0002] Industrial lifts can be installed on large rail cranes or high-speed rail cranes in automated port yards. They are driven by racks and pinions and run in a fully open shaft. The equipment must withstand a maximum wind speed of 55m / s in non-operating conditions and an acceleration and deceleration of 1.5m / s during normal operation of the crane. 2 The emergency braking deceleration speed is 1m / s 2 , and can be used in a marine climate environment with high salt spray and high corrosion, so the safety protection requirements of the equipment are extremely high. Since the elevator adopts the gear rack intermeshing operation mode, the inevitable vibration poses a challenge to the comfort of the members and the accuracy of the overload device. Therefore, it is urgent to propose a flexible buffer and overload detection device for the car bottom to protect the safety, reliability and durability of the passengers and equipment. Summary of the Invention

[0003] The technical problem to be solved by the utility model is to provide a flexible buffering and overload detection device for the car bottom of an industrial dual-purpose elevator for people and goods, which can absorb a large amount of resonance generated during the operation of the buffer elevator and improve the measurement accuracy of the weight detection device.

[0004] In order to solve the above problems, the specific technical solutions of the present invention are as follows: a flexible buffering and overload detection device for the bottom of an industrial passenger elevator, comprising a base, a cylinder body, a strain rod, a bearing platform and a compression spring; wherein the upper surface of the base is provided with an inclined surface, the bottom surface of the cylinder body is connected to the inclined surface, the upper end opening of the cylinder body is coaxially sealed with the strain rod through a sealing ring, the bottom of the strain rod is a strain sensing area, and a gas sealed in the cylinder body is provided below the strain sensing area; a lower flange is provided on the upper surface of the cylinder body, an upper flange is threadedly connected to the outer periphery of the strain rod, and a compression spring is provided between the upper flange and the lower flange; a bearing platform is coaxially slidably fitted on the top of the strain rod, the upper surface of the bearing platform is a horizontal plane, and is connected to the movable bottom of the car.

[0005] The inclined surface of the base is 8° to 12° with respect to the horizontal plane.

[0006] The base extends horizontally outward, and a vertical sleeve is provided on the upper surface of the extended end. The upper end of the vertical sleeve coaxially slides with the inner guide rod, and the upper end of the inner guide rod is fixedly connected to a horizontal support plate, and the upper surface of the support plate is at the same height as the upper top surface of the supporting platform.

[0007] A straight connecting rod is movable on the inner guide rod through a rotating shaft, and a universal head is arranged on the straight connecting rod; one end of a bent connecting rod is connected to the side end surface on the base, and the other end of the bent connecting rod is connected to the universal head.

[0008] The overload detection device of the present application adopts a mechanical operation mode, which is reliable, stable, maintenance-resistant, and has a simple structure. Compared with the traditional rubber buffer pad method, the device can perform shock absorption and weight detection through gas compression. When the elevator is working, it can offset and absorb the vibration caused by operation, making passengers more comfortable and detection more accurate, and will not cause the movable car bottom to overturn. All components of the system are indirectly connected by bolts, which has the advantages of easy maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is the main view of this application.

[0010] Figure 2 for Figure 1 AA cross-sectional view.

[0011] Figure 3 This is the application status diagram of this application. DETAILED DESCRIPTION

[0012] like Figure 1 and Figure 2 The device, shown in Figure 1, is a flexible cushioning and overload detection device for the car floor of an industrial passenger elevator. The device comprises a base 1, a cylinder body 2, a strain rod 3, a support platform 4, and a compression spring 5. The top surface of the base 1 has an inclined surface at an angle of 8° to 12° to the horizontal. The bottom surface of the cylinder body 2 is connected to the inclined surface. The upper opening of the cylinder body 2 is coaxially sealed with the strain rod 3 via a sealing ring 6. The bottom of the strain rod 3 forms a strain sensing area, below which is a gas 7 sealed within the cylinder body 2. A lower flange 8 is provided on the top surface of the cylinder body 2. An upper flange 9 is threadedly connected to the outer periphery of the strain rod 3. A compression spring 5 is provided between the upper and lower flanges 9. The top of the strain rod 3 coaxially slides with the support platform 4. The upper surface of the support platform 4 is horizontal and connected to the drive device connecting plate. The support platform 4, arranged at an inclined angle, can decompose the force applied to the support platform 4, so that only a portion of the force is transmitted to the strain rod 3 and feedback is obtained. This prevents excessive pressure on the strain rod 3 and improves its service life.

[0013] The base 1 extends horizontally outward, and a vertical sleeve 11 is provided on the upper surface of the extended end. The upper end of the vertical sleeve 11 coaxially slides with the inner guide rod 12, and the upper end of the inner guide rod 12 is fixedly connected to a horizontal support plate 13. The upper surface of the support plate 13 is at the same height as the upper top surface of the supporting platform 4.

[0014] A straight link 14 is pivotally connected to the inner guide rod 12, and a universal joint 15 is provided on the straight link 14. A curved link 16 is connected to one end of the side surface on the base 1, and the other end of the curved link 16 is connected to the universal joint 15. The inner guide rod 12 serves as a support and guide, and the curved link 16 limits the inner guide rod 12, providing reset and anti-twist protection during car heaves or minor vibrations.

[0015] When the load platform 4 is forced downward, its tilting action decomposes the vertical force and the lateral force generated by vibration, thus providing a certain degree of shock absorption. Simultaneously, the bottom of the load platform 4 contacts the upper flange 9 of the strain rod 3, compressing the compression spring 5 and causing the strain rod 3 to move downward slightly, compressing the gas 7 at the bottom. This compression causes the strain rod 3 to deform and feedback pressure, thereby causing the control mechanism to sound an alarm if the load exceeds the limit.

[0016] like Figure 3 As shown, the car's movable floor is connected to the supporting platform 4 of the buffer and overload detection device of this application, and the base 1 is connected to the drive chassis. When the drive chassis is forced upward, the buffer and overload detection device of this application is connected to the movable floor of the car, and the unbalanced load force is decomposed by the supporting platform 4. At the same time, the inner guide rod 12 serves as a guide to ensure smooth operation of the entire system. The buffer and overload detection device of this application can be arranged in two symmetrical arrangements or in a rectangular arrangement of four.

Claims

1. A flexible buffer and overload detection device for the car bottom of an industrial passenger lift, characterized by: The invention comprises a base (1), a cylinder body (2), a strain rod (3), a bearing platform (4) and a compression spring (5); wherein the upper surface of the base (1) is provided with an inclined surface, the bottom surface of the cylinder body (2) is connected to the inclined surface, the upper end opening of the cylinder body (2) is coaxially sealed with the strain rod (3) through a sealing ring (6), the bottom of the strain rod (3) is a strain sensing area, and a gas (7) sealed in the cylinder body (2) is provided below the strain sensing area; a lower flange (8) is provided on the upper surface of the cylinder body (2), an upper flange (9) is connected to the outer periphery of the strain rod (3) by a thread, and a compression spring (5) is provided between the upper flange (9) and the lower flange (8); the top of the strain rod (3) is coaxially slidably matched with the bearing platform (4), the upper surface of the bearing platform (4) is a horizontal surface, and is connected to the movable bottom of the car.

2. The flexible buffering and overload detection device for the car bottom of an industrial passenger lift according to claim 1 is characterized in that: The inclined surface of the base (1) is 8° to 12° with the horizontal plane.

3. The flexible buffering and overload detection device for the car bottom of an industrial passenger lift according to claim 1 is characterized in that: The base (1) extends outward horizontally, and a vertical sleeve (11) is provided on the upper surface of the extension end. The upper end of the vertical sleeve (11) is coaxially slidably matched with the inner guide rod (12). The upper end of the inner guide rod (12) is fixedly connected to a horizontal support plate (13). The upper surface of the support plate (13) is at the same height as the upper top surface of the bearing platform (4).

4. The flexible buffering and overload detection device for the car bottom of an industrial passenger lift according to claim 3 is characterized in that: A straight connecting rod (14) is movable on the inner guide rod (12) through a rotating shaft, and a universal head (15) is provided on the straight connecting rod (14); one end of a bent connecting rod (16) is connected to the side end surface on the base (1), and the other end of the bent connecting rod (16) is connected to the universal head (15).

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