A deep shaft multi-rope hoisting dynamic balancing device

Abstract

The utility model discloses a kind of deep shaft multi-rope hoisting dynamic balancing devices, including multiple deep shaft multi-rope suspension devices and communicating vessel, each deep shaft multi-rope suspension device includes middle plate, its upper end is connected with the rope ring of connecting steel wire rope, middle plate is equipped with the through slot I of placing communicating oil cylinder;Two side plates, parallel symmetrical arrangement are in the left and right sides of middle plate, side plate upper end is fixed with middle plate, side plate lower end is connected with reversing fork, the lower end of reversing fork connects load;The position of side plate upper part corresponding communicating oil cylinder is equipped with through slot II;The force transmission connection between the upper end of the cylinder barrel of communicating oil cylinder and side plate is through cushion block, the piston end of communicating oil cylinder is connected with sliding block, and sliding block is connected on middle plate;Side plate lower part is equipped with through slot III, two guide blocks are symmetrically equipped on the both sides of sliding block, guide block extends into through slot III, and the part of guide block and through slot III contact is equipped with rolling body.The utility model realizes multi-rope tension dynamic balance, and has the advantages of small wear, long service life.

Description

Technical Field

[0001] This utility model belongs to the field of mining machinery technology, specifically relating to a balancing device for a deep vertical shaft multi-rope hoisting system. Background Technology

[0002] In deep vertical shaft multi-rope hoisting systems, multiple wire ropes are prone to tension imbalance due to differences in length, uneven load, or environmental factors (temperature, humidity), which can lead to accidents such as rope breakage and cage tilting.

[0003] Traditional balancing devices are mostly statically adjustable (such as counterweights and mechanical balance beams), which cannot dynamically adjust the tension in real time, and are complex in structure and difficult to maintain.

[0004] Existing multi-rope dynamic balancing devices suffer from problems such as heavy weight and insufficient rope adjustment distance, which can no longer meet the requirements for safe, stable and efficient operation of the system. Furthermore, the movement between the slider and the side plate is based on sliding friction, resulting in significant wear and affecting service life. Utility Model Content

[0005] To address the above technical problems, this utility model proposes a dynamic balancing device for multi-rope hoisting in deep vertical shafts. Under the same load and self-weight, the stroke of the original rope adjusting device can be increased by more than 50%. At the same time, the structure is reasonably stressed, which improves the service life. It can solve the problems of equipment wear, operating vibration and safety hazards caused by uneven tension of multiple hoisting wire ropes.

[0006] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution: A dynamic balancing device for multi-rope hoisting in deep vertical shafts includes multiple multi-rope suspension devices for deep vertical shafts and a communicating vessel, wherein each of the multi-rope suspension devices for deep vertical shafts includes: The middle plate has its upper end connected to the rope loop of the connecting steel wire rope via an upper connecting pin. The middle plate is provided with a through groove I, and a connecting oil cylinder is placed in the through groove I. Two side plates are arranged symmetrically on the left and right sides of the middle plate. The upper part of the side plates is fixed to the middle plate by a fixing component, and the lower part of the side plates is connected to the reversing fork to form a rectangular hollow frame. The lower end of the reversing fork is connected to the load. 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 cylinder is connected to the side plate through a pad block for force transmission. The piston end of the connecting cylinder is connected to a slider, which is connected to the bottom of the through groove I on the middle plate. The lower part of the side plate is provided with a through groove III, and two guide blocks are symmetrically provided on both sides of the slider. The guide blocks extend into the through groove III, and the part of the guide block that contacts the through groove III is provided with a rolling element. Rolling friction is formed between the guide block and the side plate. The communicating vessel includes a main pipeline, which is connected to the rodless chamber of the communicating cylinder in each of the deep well head rope suspension devices via multiple branch pipelines; each branch pipeline is equipped with a first shut-off valve, and the main pipeline is equipped with a second shut-off valve.

[0007] Beneficial effects: This utility model consists of a communicating vessel and a multi-rope suspension device for deep vertical shafts. Under the same load, the rope adjustment distance of the suspension device is increased by more than 50%, while the equipment weight is close to that of the old-style suspension device. It achieves dynamic tension balance of multiple ropes with an error range of ≤5%, reducing wire rope wear by more than 50%. The communicating vessel can adjust the tension of the wire ropes until the tension of each wire rope is equal.

[0008] Meanwhile, the slider is equipped with rolling elements that generate relative rolling friction with the side plates, which greatly reduces wear and improves service life.

[0009] In a preferred embodiment of the present invention, the rolling element includes: a hinge shaft fixedly connected to the guide block; and a roller sleeved on the hinge shaft.

[0010] In a preferred embodiment of this utility model, the upper ends of the two side plates are provided with a first limiting component, 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 pad. The first bolt connector passes through the through groove II, the two pads 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.

[0011] In a preferred embodiment of this utility model, the upper end of the cylinder of the connecting cylinder is provided with a lifting lug, which is sleeved on the first bolt connector.

[0012] In a preferred embodiment of this utility model, the connecting cylinder is a single-stage pressure cylinder, and the cylinder body and piston rod are made of 20SiMn material, and the piston rod is a hollow piston rod structure.

[0013] Beneficial effects: The cylinder barrel and piston rod are made of new high-strength materials such as 20SiMn, which can effectively reduce the weight of the hydraulic cylinder and increase the stroke of the hydraulic cylinder; the piston rod of the connecting cylinder adopts a hollow structure and the increased diameter increases the stability of the hydraulic cylinder.

[0014] In a preferred embodiment of this utility model, the two side plates are made of Q690D or HG70 material.

[0015] In a preferred embodiment of this utility model, the middle plate is made of Q690D or HG70 material.

[0016] In a preferred embodiment of this utility model, both the upper connecting pin and the lower connecting pin are made of 35CrMo or 42CrMo material.

[0017] Beneficial effects: The main components of the rope adjusting device, such as the side plate, middle plate, and connecting pin, are all made of high-strength materials, such as Q690, 42CrMo, and BS650MCK2, which can greatly increase the rope adjusting distance.

[0018] In a preferred embodiment of the present invention, the side plate is characterized by having an arc plate fixed on its outer wall for limiting the position of the connecting oil cylinder.

[0019] 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

[0020] Figure 1 This is a schematic diagram of the structure of the multi-rope hoisting dynamic balancing device for deep vertical shafts of this utility model; Among them, 1. rope loop; 18. communicating vessels; Figure 2 A schematic diagram of a multi-rope suspension device for a single deep vertical shaft. Among them, 2. upper connecting pin; 3. baffle; 4. pad block; 7. slider; 8. partition plate; 9. middle connecting pin; 10. reversing fork; 11. connecting cylinder; 12. cylinder tail connecting pin; 13. arc plate; Figure 3 This is a partially enlarged schematic diagram of the upper limit component on the side plate; Figure 4 This is a schematic diagram of the structure of the middle plate of this utility model; Among them, 19, through groove I; Figure 5 This is a structural schematic diagram of the side panel; Among them, 20 is through slot II; 21 is through slot III; Figure 6 This is the front view of the slider of this utility model; Figure 7 for Figure 6 AA section view; Figure 8 for Figure 7 BB section view; Among them, 7-1, slider body; 7-2, roller; 7-3, hinge shaft; Figure 9 This is the front view of the pad block; Figure 10 This is a longitudinal sectional view of the pad block.

[0021] Figure 11 This is a schematic diagram of the oil circuit for a communicating vessel. Detailed Implementation

[0022] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. Example

[0023] like Figure 1 As shown, a deep vertical shaft multi-rope hoisting dynamic balancing device consists of a communicating vessel and multiple deep vertical shaft multi-rope suspension devices. Figure 1 Take four aircraft as an example.

[0024] Depend on Figure 2 As shown, the single-frame deep vertical shaft multi-rope suspension device consists of a wedge-shaped rope ring 1, an upper connecting pin 2, a baffle plate 3, a pad block 4, a middle plate 5, a side plate 6, a slider 7, a partition plate 8, a middle connecting pin 9, a reversing fork 10, a connecting cylinder 11, a cylinder tail connecting pin 12, and an arc plate 13.

[0025] Among them, the middle plate 5 is connected to the rope loop of the connecting steel wire rope through the upper connecting pin 2 at its upper end. The middle plate 5 is provided with a through groove I, and the connecting oil cylinder 11 is placed in the through groove I. Two side plates 6 are arranged in parallel and symmetrically on the left and right sides of the middle plate 5. The upper end of the side plate 6 is fixed to the middle plate 5 by a fixing component, and the lower end of the side plate 6 is connected to the reversing fork 10 to form a rectangular hollow frame. The lower end of the reversing fork 10 is connected to the load. The upper part of the side plate 6 is provided with a through groove II to avoid the connecting oil cylinder 11 at the position corresponding to the position of the connecting oil cylinder 11. The upper end of the cylinder of the connecting cylinder 11 is connected to the side plate 6 through the pad block 4 for force transmission. The piston end of the connecting cylinder 11 is connected to the slider 7, and the slider 7 is connected to the bottom of the through groove I on the middle plate. The lower part of the side plate 6 is provided with a through groove Ⅲ, and two guide blocks are symmetrically provided on both sides of the slider 7. The guide blocks extend into the through groove Ⅲ, and the part of the guide block that contacts the through groove Ⅲ is provided with a rolling element, and rolling friction is formed between the guide block and the side plate. The communicating vessel includes a main pipeline, which is connected to the rodless chamber of the communicating cylinder in each of the deep well head rope suspension devices via multiple branch pipelines; each branch pipeline is equipped with a first shut-off valve, and the main pipeline is equipped with a second shut-off valve.

[0026] This utility model comprises a communicating vessel and a multi-rope suspension device for deep vertical shafts. Under the same load, the rope adjustment distance of the balancing device is increased by more than 50%, while the equipment weight is close to that of the old-style balancing device. It achieves dynamic tension balance of multiple ropes with an error range of ≤5%, reducing wire rope wear by more than 50%. The communicating vessel can adjust the tension of the wire ropes until the tension of each wire rope is equal. Simultaneously, the rolling elements on the slider and the relative rolling friction between them and the side plates greatly reduce wear and improve service life.

[0027] As a further preferred embodiment of this example 1, such as Figure 3 As shown, the slider consists of a slider body 7-1, a hinge shaft 7-2, and a roller 7-3. During installation, the roller 7-3 presses against the inner surface of the square groove inside the side plate. When the slider moves relative to the side plate, the roller rotates, changing the original sliding friction to rolling friction, which greatly reduces the wear between them and increases the service life.

[0028] 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: Two baffles are symmetrically arranged on the outer sides 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 pads. A first bolt connector traverses the through groove II, the two pads, and the two baffles at the upper ends of the two side plates. The end of the first bolt connector abuts against the baffle via a screw-in nut. A second limiting assembly is provided at the lower end of the two side plates, which is a second bolt connector 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 assemblies at both ends, forming a rectangular hollow frame between the two side plates.

[0029] As a further preferred embodiment of this embodiment 1, the upper end of the cylinder of the connecting cylinder is provided with a lifting lug, which is sleeved on the first bolt connector.

[0030] As a further preferred embodiment of this example, 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 structure. Using novel high-strength materials such as 20SiMn for both the cylinder body and piston rod effectively reduces the cylinder weight while increasing the cylinder stroke; the hollow structure of the connecting cylinder piston rod, with its increased diameter, enhances the cylinder's stability.

[0031] As a further preferred embodiment of this example, the two side plates are made of Q690D or HG70 material. The middle plate is also made of Q690D or HG70. Both the upper and lower connecting pins are made of 35CrMo or 42CrMo material. The main components of the rope adjusting device, such as the side plates, middle plate, and connecting pins, are all made of high-strength materials, such as Q690, 42CrMo, and BS650MCK2, which can greatly increase the rope adjusting distance.

[0032] Example 2

[0033] The difference between this embodiment and the previous embodiment 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.

[0034] The working principle of this utility model of multi-rope hoisting dynamic balancing device for deep vertical shafts 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 greater tension compresses the connecting cylinder through the middle plate 5, slider 7, side plate 6, and pad 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 enters the connecting cylinder with less tension through the connecting pipe, causing its piston rod to extend outward, which shortens the suspension through the slider 7, middle plate 5, pad 4, and side plate 6, increasing the tension of the wire rope. The movement of the connecting cylinder stops only when the tension of each wire rope is equal.

[0035] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A dynamic balancing device for multi-rope hoisting in deep vertical shafts, characterized in that, This includes multiple deep vertical shaft multi-rope suspension devices and communicating vessels, wherein each of the deep vertical shaft multi-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. The upper part of the side plates is fixed to the middle plate by a fixing component, and the lower part of the side plates is connected to the reversing fork to form a rectangular hollow frame. The lower end of the reversing fork is connected to the load. 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 cylinder is connected to the side plate through a pad block for force transmission. The piston end of the connecting cylinder is connected to a slider, which is connected to the bottom of the through groove I on the middle plate. The lower part of the side plate is provided with a through groove III, and two guide blocks are symmetrically provided on both sides of the slider. The guide blocks extend into the through groove III, and the part of the guide block that contacts the through groove III is provided with a rolling element. Rolling friction is formed between the guide block and the side plate. The communicating vessel includes a main pipeline, which is connected to the rodless chamber of the communicating cylinder in each of the deep well head rope suspension devices via multiple branch pipelines; each branch pipeline is equipped with a first shut-off valve, and the main pipeline is equipped with a second shut-off valve.

2. The deep vertical shaft multi-rope hoisting dynamic balancing device according to claim 1, characterized in that, The rolling element includes: The hinge pin is fixedly connected to the guide block; The roller is fitted onto the hinge shaft.

3. The deep vertical shaft multi-rope hoisting dynamic balancing device 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 pad. The first bolt connector passes through the through groove II, the two pads 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.

4. The deep vertical shaft multi-rope hoisting dynamic balancing device 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 deep vertical shaft multi-rope hoisting dynamic balancing device 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.

6. The deep vertical shaft multi-rope hoisting dynamic balancing device according to claim 1, characterized in that, The two side panels are made of Q690D or HG70 material.

7. The deep vertical shaft multi-rope hoisting dynamic balancing device according to claim 1, characterized in that, The middle plate is manufactured using Q690D or HG70.

8. The deep vertical shaft multi-rope hoisting dynamic balancing device according to claim 1, characterized in that, Both the upper and lower connecting pins are made of 35CrMo or 42CrMo material.

9. The deep vertical shaft multi-rope hoisting dynamic balancing device 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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