External gate opening measuring device for hydraulic hoist

Abstract

The utility model provides an external gate opening measuring device for a hydraulic hoist, which comprises a first fixed slide rail hoop, the first fixed slide rail hoop is fixedly connected with the front end of a cylinder body of the hydraulic hoist, and an external sliding opening device is selectively mounted on the first fixed slide rail hoop in a matched manner through a slide rail ring. A rope collecting device is installed at the front end of the external sliding opening device and fixedly connected with an extension rod through a steel wire rope, the bottom of the extension rod is installed on a second fixed sliding rail hoop in a sliding fit mode, and the second fixed sliding rail hoop is fixedly connected with the front end of a hydraulic hoist push-pull rod. The external opening degree measuring device has the advantages that the external opening degree measuring device can be longitudinally and transversely adjusted by adjusting the installation position, the problem of accurate measurement of the opening degree of the gate can be effectively solved, reliability is improved, and meanwhile due to the fact that the opening degree measuring device is external, maintenance time can be effectively shortened.

Description

Technical Field

[0001] The utility model relates to the field of ship lock operation monitoring, in particular to a hydraulic hoist external gate opening measuring device. Background Art

[0002] At present, ship locks use miter gates to block the water flow to form a lock chamber, and use the principle of communicating vessels to make the water level of this lock chamber level with the upper lock chamber or the lower lock chamber to meet the needs of ships passing through the lock. The function of the miter gate is to block the water flow according to demand, to adjust the water level of the adjacent lock chamber and to resist the impact of the water flow, so the operating reliability of the hydraulic system is very high.

[0003] Working principle of hydraulic gate hoist: The hydraulic gate hoist is a new type of opening and closing machine that integrates machinery, electricity and hydraulics. It is based on a hydraulic cylinder and consists of hydraulic oil, an electric motor, an oil tank, an oil filter, a hydraulic control valve, etc. Its basic principle is: the electric motor is used as the power source, and the electric motor drives the oil pump to output pressure oil, and drives the piston rod through the oil circuit system and other components. The piston rod is connected to the gate, and the liquid pressure is used as the power to push the piston to lift the gate. The relevant key components are as follows: Hydraulic control cabinet: All data collection, display, control and other functions are realized through this control cabinet, and its core is the PLC device. Hydraulic gate hoist: The piston rod is connected to the gate, and the liquid pressure is used as the power to push the piston to lift the gate.

[0004] The gate opening is a very important data in the gate operation process, and the equipment used for opening acquisition is called an opening meter, which is widely used in water conservancy projects. The gate opening meter usually uses a gate opening sensor (displacement sensor) for measurement, and collects the encoder value through a special measurement and control instrument, so as to accurately measure the displacement value, so as to achieve the purpose of real-time measurement and control of the displacement of the measured object. At present, the hydraulic system of the ship lock uses a built-in rope collection device in conjunction with an encoder to collect the opening. The encoder collects the mechanical rotation signal of the rope collection device, and converts the mechanical rotation signal into an electrical signal and transmits it to the opening meter, and then uses the opening meter to display and process the data.

[0005] Although the built-in opening meter is integrated with the oil cylinder, which reduces the installation workload on site, it is expensive and inconvenient to repair on site. In addition, statistics on the status of built-in opening measuring devices in recent years have found the following problems:

[0006] It is easy to cause frequent oil leakage of hydraulic gate hoist. The sealing rubber parts of the hydraulic system age too quickly, causing frequent faults such as oil leakage, gate sliding, and gate opening delay. The most frequent fault is the seal of the encoder transmission mechanism of the existing built-in opening meter that measures the gate opening. After the seal of this fault point ages, it will cause serious leakage of the oil cylinder and the pressure of the hydraulic circuit will drop, affecting the normal operation of the hydraulic gate hoist.

[0007] Inconvenient maintenance and repair. When oil leakage, rope breakage, or data collection equipment failure occurs, the oil cylinder must be manually disassembled before replacement can be performed. This is a very tedious and risky task, which affects the accuracy of daily maintenance and debugging. Daily maintenance cannot go deep into the hydraulic cylinder, and it is impossible to monitor whether the mechanical mechanism has any faults. At the same time, the collected opening value is indirectly reflected by the displacement of the piston rod of the gate hoist, and the actual opening value of the gate cannot be accurately reflected during debugging. Utility Model Content

[0008] The technical problem to be solved by the utility model is to provide an external gate opening measuring device for a hydraulic gate hoist. This device has the characteristics of realizing longitudinal and lateral adjustment of the external opening measuring device by adjusting the installation position, which can effectively solve the problem of accurate measurement of the gate opening and improve reliability. At the same time, since the opening measuring device is external, the maintenance time can be effectively reduced.

[0009] In order to realize the above-mentioned technical features, the purpose of the utility model is achieved as follows: an external gate opening measuring device for a hydraulic gate hoist, characterized in that it comprises a first fixed slide rail hoop, the first fixed slide rail hoop is fixedly connected to the front end of the hydraulic gate hoist cylinder body, an external sliding opening device is selectively installed on the first fixed slide rail hoop through a slide rail ring, a rope collecting device is installed at the front end of the external sliding opening device, the rope collecting device is fixedly connected to the extension rod through a steel wire rope, the bottom of the extension rod is installed on the second fixed slide rail hoop through a sliding fit, and the second fixed slide rail hoop is fixedly connected to the front end of the push-pull rod of the hydraulic gate hoist.

[0010] The first fixed slide rail clamp and the second fixed slide rail clamp have the same structure;

[0011] The first fixed slide rail clamp includes an aluminum alloy body, with limit plates arranged on both sides of the aluminum alloy body, locking bolts for locking the aluminum alloy body on the hydraulic gate opener are fixed on the limit plates, and a slide rail ring for sliding cooperation with an external sliding opening device is fixed in the middle of the aluminum alloy body, and positioning pin holes are evenly arranged in a circle on the slide rail ring.

[0012] The external sliding opening device comprises a sliding opening device body, a support box body is arranged at the bottom of the sliding opening device body, the support box body is supported on the first fixed slide rail clamp, a bottom positioning hole is arranged in the middle part of the support box body, and a rope collecting device is arranged at the front end of the sliding opening device body.

[0013] The extension rod includes a slide groove, a rectangular block is fixed at the bottom end of one side of the slide groove, a through hole is processed on the rectangular block, the through hole is selectively installed on the slide rail ring of the second fixed slide rail clamp through a positioning pin, a sliding positioning block is slidably installed inside the slide groove, a telescopic interface is installed inside the sliding positioning block, and the telescopic end of the telescopic interface is connected to the wire rope.

[0014] An encoder is arranged inside the external sliding opening device, and the encoder cooperates with the wire rope and detects the pulled-out length of the wire rope to measure the gate opening data.

[0015] The support box body cooperates with the positioning pin shaft on the slide rail ring through the positioning pin.

[0016] The utility model has the following beneficial effects:

[0017] 1. The device of the utility model has the characteristics of realizing longitudinal and lateral adjustment of the opening instrument by adjusting the installation position, which can improve the accuracy of opening measurement during the operation of the hydraulic gate hoist, and effectively avoid the risk of opening measurement error caused by vibration during the operation of the hydraulic gate hoist. At the same time, since it is an external opening measurement device, it can reduce the later maintenance time and reduce costs.

[0018] 2. The utility model provides an external gate opening measuring device for a hydraulic gate hoist, which is a special opening measuring device designed according to the structure of the hydraulic gate hoist and can replace the built-in opening meter to measure the opening of the hydraulic gate hoist, thereby preventing the hydraulic gate hoist from failing due to a failure of the built-in opening meter.

[0019] 3. The fixed slide rail ring can be installed on the hydraulic gate hoist to meet the measurement requirements at any position in the longitudinal direction.

[0020] 4. The above-mentioned external opening meter can cooperate with the telescopic receiving hole through the front-end rope collection device to meet the needs of hydraulic gate opening measurement.

[0021] 5. The above-mentioned sliding positioning block can conveniently realize fine adjustment of the lateral position of the extension rod, thereby meeting the measurement requirements of different positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0023] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model.

[0024] Figure 2 This is a three-dimensional diagram showing the installation of the utility model.

[0025] Figure 3 This is a three-dimensional diagram of the first fixed slide rail clamp of the utility model.

[0026] Figure 4 This is a three-dimensional diagram of the external sliding opening device of the utility model.

[0027] Figure 5 It is a three-dimensional diagram of the extension rod of the utility model.

[0028] In the figure: first fixed rail clamp 1, external sliding opening device 2, rope collecting device 3, extension rod 4, wire rope 5, sliding positioning block 6, second fixed rail clamp 7, hydraulic hoist cylinder 8, hydraulic hoist push-pull rod 9;

[0029] Aluminum alloy body 101, limit plate 102, locking bolt 103, slide rail ring 104;

[0030] Sliding opening device body 201, support box body 202, bottom positioning hole 203;

[0031] Telescopic interface 401 , rectangular block 402 , through hole 403 , sliding groove 404 . DETAILED DESCRIPTION

[0032] The embodiments of the present utility model are further described below in conjunction with the accompanying drawings.

[0033] See also Figure 1-5 , the external gate opening measuring device of the hydraulic gate hoist is characterized in that it includes a first fixed slide rail clamp 1, the first fixed slide rail clamp 1 is fixedly connected to the front end of the hydraulic gate hoist cylinder body 8, the first fixed slide rail clamp 1 is selectively matched with an external sliding opening device 2 through a slide rail ring 104, the front end of the external sliding opening device 2 is equipped with a rope collecting device 3, the rope collecting device 3 is fixedly connected to the extension rod 4 through a wire rope 5, the bottom of the extension rod 4 is mounted on the second fixed slide rail clamp 7 through sliding matching, and the second fixed slide rail clamp 7 is fixedly connected to the front end of the hydraulic gate hoist push-pull rod 9. By adopting this device, the measurement accuracy can be achieved by adjusting the external sliding opening device 2 and the extension rod 4, which can improve the working efficiency of the opening measurement during the operation of the equipment, and effectively avoid the risk of failure of the built-in opening meter to fail to work during the operation of the equipment. At the same time, the extension rod 4 can move in a small range to meet the adjustment of the device offset on site, reducing the risk of collision with other equipment and facilities. During specific use, the entire first fixed slide rail clamp 1 is installed on the front end of the hydraulic gate hoist cylinder body 8, and then the position of the external sliding opening device 2 at the first fixed slide rail clamp 1 is adjusted according to the measurement position. The installation position of the extension rod 4 can be adjusted through the sliding positioning block 6, and the installation position of the extension rod 4 on the second fixed slide rail clamp 7 can be adjusted to make it able to adapt well to the opening measurement of the hydraulic gate hoist at different positions.

[0034] Furthermore, the first fixed slide rail clamp 1 and the second fixed slide rail clamp 7 adopt the same structure; the first fixed slide rail clamp 1 includes an aluminum alloy body 101, and limit plates 102 are arranged on both sides of the aluminum alloy body 101. The limit plates 102 are fixed with locking bolts 103 for locking the aluminum alloy body 101 on the hydraulic gate hoist. A slide rail ring 104 for sliding cooperation with the external sliding opening device 2 is fixed in the middle of the aluminum alloy body 101, and the slide rail ring 104 is evenly arranged with positioning pin holes in a circumferential manner. The first fixed slide rail clamp 1 and the second fixed slide rail clamp 7 can be used for cooperation and installation on the hydraulic gate hoist, so as to adapt well to the measurement of the hydraulic gate hoist. The slide rail ring 104 facilitates the subsequent adjustment of the circumferential installation position of the installed external sliding opening device 2 and the extension rod 4, so as to adapt to the needs of different installation positions. By adopting the installation method of the positioning pin shaft, the convenience of installation and adjustment is improved.

[0035] Furthermore, the external sliding opening device 2 includes a sliding opening device body 201, a support box 202 is provided at the bottom of the sliding opening device body 201, the support box 202 is supported on the first fixed slide rail clamp 1, a bottom positioning hole 203 is provided in the middle of the support box 202, and a rope collecting device 3 is provided at the front end of the sliding opening device body 201. The above-mentioned external sliding opening device 2 can conveniently cooperate with the encoder inside it to realize the measurement of the opening. In the specific working process, the subsequent winding and retracting of the wire rope 5 can be realized through the rope collecting device 3.

[0036] Furthermore, the extension rod 4 includes a slide groove 404, a rectangular block 402 is fixed at the bottom end of one side of the slide groove 404, a through hole 403 is processed on the rectangular block 402, and the through hole 403 is selectively installed on the slide rail ring of the second fixed slide rail clamp 7 through a positioning pin, and a sliding positioning block 6 is slidably installed inside the slide groove 404, and a telescopic interface 401 is installed inside the sliding positioning block 6, and the telescopic end of the telescopic interface 401 is connected to the wire rope 5. The above-mentioned extension rod 4 can achieve the adjustment of the longitudinal extension length, thereby ensuring that the two ends of the wire rope 5 remain parallel to the axis, thereby ensuring the accuracy of subsequent measurements. The structure of the slide groove 404 ensures that the lateral position of the extension rod 4 can be adjusted.

[0037] Furthermore, an encoder is provided inside the external sliding opening device 2, and the encoder cooperates with the wire rope 5 and detects the pulled-out length of the wire rope 5 to measure the gate opening data. Through the cooperation between the wire rope 5 and the encoder, the opening can be measured in the subsequent working process.

[0038] Furthermore, the support box body 202 cooperates with the positioning pin shaft on the slide rail ring 104 through the positioning pin. The support box body 202 can be used to adjust the installation position of the external sliding opening device 2 on the first fixed slide rail clamp 1.

[0039] The specific working process and principle of the device of the utility model are as follows:

[0040] When measuring the opening of the hydraulic gate hoist, the measurement personnel install the first fixed slide rail clamp 1 on the cylinder body 8 of the hydraulic gate hoist, move the external sliding device 2 longitudinally to a suitable position, and position the external sliding device 2 on the slide rail ring 104 of the first fixed slide rail clamp 1 through the positioning pin, pull the wire rope 5 out of the rope collection device 3, and then fix the other end of the wire rope 5 to the telescopic interface 401;

[0041] When the hydraulic gate hoist is working, the push-pull rod of the hydraulic gate hoist drives the second fixed slide rail clamp 7 to move, and then drives the wire rope 5 to move. The encoder in the external sliding opening device 2 receives the signal of the wire rope 5 and records the opening information.

[0042] When it is necessary to fine-tune the lateral position, the sliding positioning block 6 is moved to adjust the position of the telescopic interface 401 inside the slide groove 404. After the adjustment is in place, the sliding positioning block 6 is fixed, and the extended length of the telescopic interface 401 is adjusted to achieve the adjustment of the longitudinal position. The sliding characteristics of the sliding positioning block 6 are used to improve the measurement accuracy during the measurement of the hydraulic gate hoist. At the same time, since it is an external opening measurement device, the maintenance time is minimized.

Claims

1. External gate opening measuring device of hydraulic hoist, characterized in that: The invention comprises a first fixed slide rail hoop (1), the first fixed slide rail hoop (1) being fixedly connected to the front end of a hydraulic gate hoist cylinder body (8), an external sliding opening device (2) being selectively mounted on the first fixed slide rail hoop (1) via a slide rail ring (104), a rope collecting device (3) being mounted on the front end of the external sliding opening device (2), the rope collecting device (3) being fixedly connected to an extension rod (4) via a steel wire rope (5), the bottom of the extension rod (4) being mounted on a second fixed slide rail hoop (7) via a sliding fit, and the second fixed slide rail hoop (7) being fixedly connected to the front end of a hydraulic gate hoist push-pull rod (9).

2. According to claim 1, the external gate opening measuring device of the hydraulic hoist is characterized in that: The first fixed slide rail hoop (1) and the second fixed slide rail hoop (7) have the same structure; The first fixed slide rail clamp (1) comprises an aluminum alloy body (101), with limit plates (102) being arranged on both sides of the aluminum alloy body (101), locking bolts (103) being fixed on the limit plates (102) for locking the aluminum alloy body (101) on the hydraulic gate hoist, and a slide rail ring (104) being fixed in the middle of the aluminum alloy body (101) for slidingly cooperating with an external sliding opening device (2), and positioning pin holes being evenly arranged in a circumference on the slide rail ring (104).

3. According to claim 2, the external gate opening measuring device of the hydraulic hoist is characterized in that: The external sliding opening device (2) comprises a sliding opening device body (201), a support box body (202) is arranged at the bottom of the sliding opening device body (201), the support box body (202) is supported on the first fixed slide rail clamp (1), a bottom positioning hole (203) is arranged at the middle part of the support box body (202), and a rope collecting device (3) is arranged at the front end of the sliding opening device body (201).

4. According to claim 2, the external gate opening measuring device of the hydraulic hoist is characterized in that: The extension rod (4) comprises a slide groove (404), a rectangular block (402) is fixed at the bottom end of one side of the slide groove (404), a through hole (403) is processed on the rectangular block (402), the through hole (403) is selectively installed on the slide rail ring of the second fixed slide rail clamp (7) through a positioning pin, a sliding positioning block (6) is slidably installed inside the slide groove (404), a telescopic interface (401) is installed inside the sliding positioning block (6), and the telescopic end of the telescopic interface (401) is connected to the wire rope (5).

5. According to claim 2, the external gate opening measuring device of the hydraulic hoist is characterized in that: An encoder is arranged inside the external sliding opening device (2), and the encoder cooperates with the steel wire rope (5) and detects the pulled-out length of the steel wire rope (5) to measure the gate opening data.

6. According to claim 3, the external gate opening measuring device of the hydraulic hoist is characterized in that: The support box body (202) cooperates with the positioning pin shaft on the slide rail ring (104) via the positioning pin.

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