First rope hydraulic rope adjusting device for deep well

Abstract

The utility model discloses a first rope hydraulic adjusting device for a deep well, which comprises a plurality of deep well first rope suspension devices and a closed-loop passive balance oil way system, each deep well first rope suspension device comprises a middle plate, the upper end of each deep well first rope suspension device is connected with a rope ring connected with a steel wire rope through an upper connecting pin, the middle plate is provided with a through groove I, and a communicating oil cylinder is arranged in the through groove I; the upper ends and the lower ends of the two side plates are symmetrically arranged on the left side and the right side of the middle plate in parallel through limiting assemblies, and through grooves II for avoiding the communicating oil cylinders are formed in the positions, corresponding to the communicating oil cylinders, of the upper portions of the side plates; the upper end of a cylinder barrel of the communicating oil cylinder is in force transmission connection with the side plate through a pressing block, and the piston end of the communicating oil cylinder is connected with a sliding block which is fixed to the middle plate. The device is composed of a closed-loop passive balance oil way system, a rope adjusting device control system and a plurality of deep well first rope suspension devices, the piston extension amount of each communicated oil cylinder can be detected in real time, and the tension of the steel wire ropes is automatically adjusted until the tension of the steel wire ropes is equal.

Description

Technical Field

[0001] This utility model discloses a hydraulic rope adjusting device for the head rope in deep wells, belonging to the technical field of mine transportation equipment. Background Technology

[0002] As shallow resources gradually decrease, resource extraction is moving towards deeper ground, and more and more wells exceeding 1,000 meters in depth are being drilled. When using existing deep well head rope suspension devices, there are problems such as heavy weight and insufficient rope adjustment distance. Furthermore, they cannot effectively provide feedback on the stroke position of the hydraulic rope adjuster cylinders on both sides and the working pressure of the rope adjustment cylinders, which can no longer meet the requirements for safe, stable, and efficient operation of the system. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model proposes a deep well head rope hydraulic adjustment device, which consists of a closed-loop passive balancing oil circuit system and multiple deep well head rope suspension devices. The suspension telescopic components of the deep well head rope suspension devices are easy to adjust, and the balancing oil circuit system can automatically adjust the tension of the wire ropes until the tension of each wire rope is equal.

[0004] To achieve the above-mentioned technical objectives, the present invention employs the following technical means:

[0005] A hydraulic rope adjusting device for a deep well head rope includes multiple deep well head rope suspension devices and a closed-loop passive balancing oil circuit system, wherein each of the deep well head rope suspension devices includes:

[0006] The middle plate has its upper end connected to the rope loop of the connecting wire rope via an upper connecting pin. The middle plate is provided with a through groove I, in which a connecting oil cylinder is placed.

[0007] Two side plates are arranged symmetrically on the left and right sides of the middle plate through limiting components at the upper and lower ends, respectively. The upper part of the side plates is provided with a through groove II to avoid the position of the connecting oil cylinder. The upper end of the cylinder of the connecting oil cylinder is connected to the side plate through a pressure block for force transmission. The piston end of the connecting oil cylinder is connected to a slider, which is fixed on the middle plate. The slider is connected to the lower part of the side plate through guide blocks on both sides to form a sliding fit connection.

[0008] The lower end of the side plate is connected to the steering fork via a central connecting pin, and the lower end of the steering fork is connected to the load.

[0009] The displacement sensor is mounted on the lower part of the side plate via a sensor bracket.

[0010] The sensor plate is fixed to the slider and can move linearly up and down with the slider.

[0011] The closed-loop passive balance oil circuit system includes a hydraulic connection component, which includes a main pipeline. The main pipeline is connected to the rodless chamber of the connecting cylinder in each of the deep well head rope suspension devices through multiple branch pipelines. Each branch pipeline is equipped with a first shut-off valve, and each end of the main pipeline is equipped with a second shut-off valve, one of which is connected to a pressure transmitter for system pressure detection.

[0012] Beneficial effects: This utility model consists of a closed-loop passive balancing oil circuit system, a rope adjusting device control system, and multiple deep well head rope suspension devices, which can detect the piston extension of each connected oil cylinder in real time. The closed-loop passive balancing oil circuit system is equipped with a pressure transmitter to detect the system pressure. The above sensor signals can be processed by the rope adjusting device control system to provide the working status of the head rope and related warning signals, facilitating user operation and ensuring the safe, stable, and efficient operation of the system.

[0013] In one optional embodiment, the upper ends of the two side plates are provided with a first limiting component, which includes:

[0014] Two baffles are symmetrically arranged on the outside of the two side plates and near the upper end of the through groove II. Bolt holes for bolts to pass through are provided on both the baffles and the pressure block.

[0015] The first bolt connector passes through the through groove II, the pressure block and the two baffles at the upper end of the two side plates. The end of the first bolt connector abuts against the baffle through a screw-on nut.

[0016] The lower ends of the two side plates are provided with a second limiting component, which is a second bolt connector connected between the two side plates.

[0017] Beneficial effect: The two side plates are arranged symmetrically on the left and right sides of the middle plate through the limiting components at both ends, so that a rectangular hollow frame is formed between the two side plates.

[0018] In one optional embodiment, the lower part of the side plate is provided with a through groove III, and guide blocks on both sides of the slider extend into the through groove III to form a sliding fit.

[0019] Beneficial effects: The upper end of the connecting cylinder is connected to the side plate through the force transmission between the pressure block and the side plate. The piston rod end of the connecting cylinder abuts against the bottom of the through groove I of the middle plate. The guide blocks on both sides of the slider form a sliding fit with the through groove III of the side plate, which can make the relative movement between the middle plate and the side plate more stable.

[0020] In one optional embodiment, the upper end of the cylinder of the communicating cylinder is provided with a lifting lug, which is sleeved on the first bolted connector.

[0021] Beneficial effects: The pin at the tail of the hydraulic cylinder is only used to relieve pressure and prevent the hydraulic cylinder from falling down, making it easy to replace the hydraulic cylinder, and it is not subjected to force during use.

[0022] In one optional embodiment, the rodless chamber port of the communicating cylinder is provided with a one-way hydraulic damper.

[0023] Beneficial effects: The oil port of the rope adjusting cylinder is equipped with a one-way hydraulic damping hole, which can reduce the vibration of the rope adjusting device during operation without affecting the rapid pressurization of the cylinder; at the same time, it can greatly reduce the impact caused by the sudden loss of pressure in the cylinder when the connecting oil pipe is accidentally broken.

[0024] In one optional embodiment, the connecting cylinder is a single-stage pressure cylinder, and the cylinder body and piston rod are made of 20SiMn material, with the piston rod having a hollow piston rod structure.

[0025] In one alternative embodiment, the two side panels are made of Q690D or HG70 material.

[0026] In an alternative embodiment, the middle plate is manufactured using Q690D or HG70.

[0027] In an optional embodiment, both the upper connecting pin and the middle connecting pin are made of 35CrMo or 42CrMo material.

[0028] Beneficial effects: The cylinder and piston rod are made of new high-strength materials, and the main components of the rope adjusting device, such as the side plate, middle plate, and connecting pin, are also made of high-strength materials, which can greatly increase the rope adjusting distance. Under the same load and self-weight as the original rope adjusting device, the rope adjusting distance can be increased by more than 50%.

[0029] In one alternative embodiment, an arc plate for limiting the movement of the connecting cylinder is fixed on the outer wall of the side plate.

[0030] Beneficial effect: Setting an arc plate on the outer side of the side plate can prevent displacement caused by uneven force on the connecting cylinder. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of the hydraulic rope adjusting device for the head rope in deep wells according to this utility model;

[0032] Among them, 1. Rope ring; 5. Middle plate; 6. Side plate; 17. Lower connecting pin; 18. Closed-loop passive balance oil circuit system;

[0033] Figure 2 This is a longitudinal sectional view of the head rope suspension device for deep wells;

[0034] Among them, 2. upper connecting pin; 3. baffle; 4. pressure block; 7. slider; 8. partition; 9. middle connecting pin; 10. reversing fork;

[0035] Figure 3 This is a partially enlarged schematic diagram of the upper limit component on the side plate;

[0036] Figure 4 This is a side view of the head rope suspension device for a deep well.

[0037] Among them, 11 is the connecting cylinder; 12 is the sensor sensing plate; 13 is the sensor bracket; 14 is the cylinder tail connecting pin; 15 is the arc plate; and 16 is the displacement sensor.

[0038] Figure 5 This is a schematic diagram of a closed-loop passive balanced oil circuit system.

[0039] Among them, 18-1, one-way hydraulic damper; 18-2, first shut-off valve; 18-3, branch pipeline; 18-4, main pipeline; 18-5, pressure transmitter;

[0040] Figure 6 This is a structural diagram of the middle plate;

[0041] Among them, 19, through groove I;

[0042] Figure 7 This is a structural schematic diagram of the side panel;

[0043] Among them, 20 is through slot II; 21 is through slot III;

[0044] Figure 8 This is the front view of the slider of this utility model;

[0045] Figure 9 This is a longitudinal sectional view of the slider;

[0046] Figure 10 This is the front view of the pressure block;

[0047] Figure 11 This is a longitudinal sectional view of the briquette. Detailed Implementation

[0048] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. Example

[0049] like Figure 1 Taking four units as an example. A hydraulic rope adjusting device for deep wells includes multiple deep well head rope suspension devices and a closed-loop passive balancing oil circuit system, wherein each of the deep well head rope suspension devices includes:

[0050] The middle plate 5 has its upper end connected to the rope ring 1 of the connecting steel wire rope via the upper connecting pin 2. The middle plate is provided with a through groove I, and the connecting oil cylinder 11 is placed in the through groove I.

[0051] Two side plates 6 are arranged symmetrically on the left and right sides of the middle plate 5 through limiting components at their upper and lower ends. The upper part of the side plate 6 is provided with a through groove II to avoid the connecting oil cylinder 11. The upper end of the cylinder of the connecting oil cylinder 11 is connected to the side plate 6 through a pressure block 4. The piston end of the connecting oil cylinder 11 is connected to a slider 7. The slider 7 is fixed on the middle plate 5. The two sides of the slider 7 are connected to the lower part of the side plate 6 through guide blocks.

[0052] The lower end of the side plate 6 is connected to the reversing fork 10 via the central connecting pin 9, and the lower end of the reversing fork 10 is connected to the load.

[0053] Displacement sensor 16 is mounted on the lower part of side plate 6 via sensor bracket;

[0054] The sensor plate 12 is fixed to the slider 7 and can move linearly up and down with the slider 7.

[0055] The closed-loop passive balance oil circuit system includes a hydraulic connection component, which includes a main pipeline 18-4. The main pipeline 18-4 is connected to the rodless cavity of the connecting cylinder 11 in each of the deep well head rope suspension devices through multiple branch pipelines 18-3.

[0056] Each of the branch pipes 18-3 is equipped with a first shut-off valve 18-2, and each end of the main pipe 18-4 is equipped with a second shut-off valve, one of which is connected to a pressure transmitter 18-5 for system pressure detection.

[0057] This invention comprises a closed-loop passive balancing oil circuit system, a rope adjusting device control system, and multiple deep-well head rope suspension devices, capable of real-time detection of the piston extension of each connected cylinder. The closed-loop passive balancing oil circuit system is equipped with a pressure transmitter to detect system pressure. The above sensor signals are processed by the rope adjusting device control system to provide the head rope's working status and relevant warning signals, facilitating user operation and ensuring safe, stable, and efficient system operation.

[0058] As a further preferred embodiment of this example 1, the upper ends of the two side plates are provided with a first limiting component, which includes:

[0059] Two baffles are symmetrically arranged on the outside of the two side plates and near the upper end of the through groove II. Bolt holes for bolts to pass through are provided on both the baffles and the pressure block.

[0060] The first bolt connector passes through the through groove II, the pressure block and the two baffles at the upper end of the two side plates. The end of the first bolt connector abuts against the baffle through a screw-on nut.

[0061] The lower ends of the two side plates are provided with second limiting components, which are second bolt connectors connecting the two side plates. The two side plates are arranged parallel and symmetrically on the left and right sides of the middle plate through the limiting components at both ends, so that a rectangular hollow frame is formed between the two side plates.

[0062] Depend on Figure 2 and Figure 3 As shown, the single-frame head rope suspension device consists of a middle plate 6 and a side plate 7 connected by a baffle 3, a slider 7, a partition 8, a central connecting pin 9, and a connecting cylinder 11 to form a pull-out buckle structure. The sensor sensing plate 12 is fixed to the slider 7 and moves linearly with the slider 7. The sensor bracket 13 is fixed to the side plate 6 by adhesive bonding or bolts. The displacement sensor 16 is installed on the sensor bracket 13 to detect the distance to the sensor sensing plate 12 and calculate the actual adjustment distance of the rope adjusting device.

[0063] The upper end of the middle plate 6 is connected to the upper rope ring 1 via the upper connecting pin 2, and is connected to the lower container four corner plates via the reversing fork 10 and the lower connecting pin. Multiple such structures plus a closed-loop passive balance oil circuit system form a deep well head rope hydraulic adjustment device.

[0064] As a further preferred embodiment of this example, the lower part of the side plate is provided with a through groove III, and guide blocks on both sides of the slider extend into the through groove III to form a sliding fit. The upper end of the connecting cylinder is connected to the side plate through a pressure block, and the piston rod end of the connecting cylinder abuts against the bottom of the through groove I of the middle plate. The guide blocks on both sides of the slider form a sliding fit with the through groove III on the side plate, which makes the relative movement between the middle plate and the side plate more stable. Example

[0065] The difference between this embodiment and embodiment 1 is that the upper end of the cylinder of the connecting cylinder is provided with a lifting lug, which is sleeved on the first bolt connector. In this embodiment, the pin at the tail of the cylinder is only used to prevent the cylinder from falling down when the cylinder is depressurized, so as to facilitate the replacement of the cylinder and is not subjected to force during use. Example

[0066] The difference between this embodiment and Embodiments 1 and 2 is that the rodless chamber port of the connecting cylinder is equipped with a one-way hydraulic damper. The rope adjusting cylinder port is equipped with a one-way hydraulic damping hole, which can reduce the vibration of the rope adjusting device during operation without affecting the rapid pressurization of the cylinder; at the same time, it can greatly reduce the impact caused by the sudden loss of pressure in the cylinder when the connecting oil pipe is accidentally broken.

[0067] As a further preferred embodiment of the technical solutions in Embodiments 1 and 2, the connecting cylinder is a single-stage pressure cylinder, and the cylinder body and piston rod are made of 20SiMn material, with the piston rod having a hollow piston rod structure. The two side plates are made of Q690D or HG70 material. The middle plate is made of Q690D or HG70 material. Both the upper and lower connecting pins are made of 35CrMo or 42CrMo material.

[0068] The cylinder and piston rod of this utility model are made of new high-strength materials. The main components of the rope adjusting device, such as the side plate, middle plate, and connecting pin, are also made of high-strength materials, which can greatly increase the rope adjusting distance. Under the same load and self-weight as the original rope adjusting device, the rope adjusting distance can be increased by more than 50%. Example

[0069] The difference between this embodiment and the three embodiments described above is that an arc plate for limiting the position of the cylinder of the connecting oil cylinder is fixed on the outer wall of the side plate at the position of the rectangular hollow frame. Providing an arc plate on the outer side of the side plate can prevent displacement caused by uneven force on the connecting oil cylinder.

[0070] The working principle of this deep well head rope hydraulic adjustment device is as follows: Whether in motion or at rest, as long as there is a tension difference among the wire ropes, the wire rope with higher tension compresses the connecting cylinder through the middle plate 5, slider 7, side plate 6, and pressure block 4, causing the piston rod of the connecting cylinder 11 to compress, the suspension to extend, and the tension of the wire rope to decrease. The oil in the cylinder then enters the connecting cylinder with lower tension through the connecting pipe, causing its piston rod to extend outwards. This extends the suspension through the slider 7, middle plate 5, pressure block 4, and side plate 6, increasing the tension of the wire rope. The movement of the connecting cylinders stops only when the tension of each wire rope is equal. Simultaneously, displacement sensors can detect the piston extension distance of each cylinder. Because a closed-loop system is used, when the total piston extension distance of all cylinders changes, the system can analyze the changes in value to determine if there is a leak, the leak rate and magnitude, and remind the user to perform relevant maintenance operations. In addition, the differences between the lifting wire ropes can be analyzed based on the sum of the extension amounts of the hydraulic cylinders of the two rope adjusting devices connected to the same lifting rope on both sides of the container. If the user needs to adjust the ropes, the optimal rope adjustment amount difference between each rope can be provided.

Claims

1. A hydraulic rope adjusting device for the head rope in deep wells, characterized in that, It includes multiple deep well head rope suspension devices and a closed-loop passive balancing oil circuit system, wherein each of the deep well head rope suspension devices includes: The middle plate has its upper end connected to the rope loop of the connecting wire rope via an upper connecting pin. The middle plate is provided with a through groove I, in which a connecting oil cylinder is placed. Two side plates are arranged symmetrically on the left and right sides of the middle plate through limiting components at the upper and lower ends, respectively. The upper part of the side plates is provided with a through groove II to avoid the connecting oil cylinder at the position of the connecting oil cylinder. The upper end of the cylinder of the connecting oil cylinder is connected to the side plate through a pressure block for force transmission. The piston end of the connecting oil cylinder is connected to a slider, which is fixed on the middle plate. The slider is connected to the lower part of the side plate through guide blocks on both sides. The lower end of the side plate is connected to the steering fork via a central connecting pin, and the lower end of the steering fork is connected to the load. The displacement sensor is mounted on the lower part of the side plate via a sensor bracket. The sensor plate is fixed to the slider and can move linearly up and down with the slider. The closed-loop passive balance oil circuit system includes a hydraulic connection component, which includes a main pipeline. The main pipeline is connected to the rodless chamber of the connecting cylinder in each of the deep well head rope suspension devices through multiple branch pipelines. Each branch pipeline is equipped with a first shut-off valve, and each end of the main pipeline is equipped with a second shut-off valve, one of which is connected to a pressure transmitter for system pressure detection.

2. The hydraulic rope adjusting device for the head rope in deep wells according to claim 1, characterized in that, The upper ends of the two side panels are provided with a first limiting assembly, which includes: Two baffles are symmetrically arranged on the outside of the two side plates and near the upper end of the through groove II. Bolt holes for bolts to pass through are provided on both the baffles and the pressure block. The first bolt connector passes through the through groove II, the pressure block and the two baffles at the upper end of the two side plates. The end of the first bolt connector abuts against the baffle through a screw-on nut. The lower ends of the two side plates are provided with a second limiting component, which is a second bolt connector connected between the two side plates.

3. The hydraulic rope adjusting device for the head rope in deep wells according to claim 1, characterized in that, The lower part of the side plate is provided with a through groove III, and guide blocks on both sides of the slider extend into the through groove III to form a sliding fit.

4. The hydraulic rope adjusting device for the head rope in deep wells according to claim 2, characterized in that, The upper end of the cylinder of the connecting cylinder is provided with a lifting lug, which is sleeved on the first bolt connector.

5. The hydraulic rope adjusting device for the head rope in deep wells according to claim 1, characterized in that, The rodless chamber port of the connecting cylinder is equipped with a one-way hydraulic damper.

6. The hydraulic rope adjusting device for the head rope in deep wells according to claim 1, characterized in that, The connected hydraulic cylinder is a single-stage pressure cylinder, and the cylinder body and piston rod are made of 20SiMn material, with the piston rod having a hollow piston rod structure.

7. The hydraulic rope adjusting device for the head rope in deep wells according to claim 1, characterized in that, The two side panels are made of Q690D or HG70 material.

8. The hydraulic rope adjusting device for the head rope in deep wells according to claim 1, characterized in that, The middle plate is manufactured using Q690D or HG70.

9. The hydraulic rope adjusting device for the head rope in deep wells according to claim 1, characterized in that, Both the upper and lower connecting pins are made of 35CrMo or 42CrMo material.

10. The hydraulic rope adjusting device for the head rope in deep wells according to claim 1, characterized in that, An arc plate for limiting the movement of the connecting oil cylinder is fixed on the outer wall of the side plate.

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