阅读说明：本技术 一种张力平衡悬挂装置 (Tension balance suspension device ) 是由 姚建南 朱昱 朱维南 张福豹 张旭东 刘建鹏 于 2019-11-22 设计创作，主要内容包括：本发明涉及一种张力平衡悬挂装置,包括至少两个张力平衡单元,所述张力平衡单元包括绳环、平衡油缸、至少一个磁流变阻尼器以及换向叉；所述平衡油缸包括内容有液压油的油缸体以及一端插接于所述油缸体中的活塞杆；所述平衡油缸的两端分别连接绳环、换向叉,并且所述绳环、换向叉位于所述平衡油缸的中轴线上；所述磁流变阻尼器的两端分别与所述平衡油缸的两端刚性连接；所述各张力平衡单元的油缸体均与一连通油管连通,从而各油缸体内的液压油可经由连通油管流动于各张力平衡单元的油缸体之间。该装置既能平衡钢丝绳之间的张力,也能有效的抑制钢丝绳的振动,保证了提升系统的稳定性。(The invention relates to a tension balance suspension device, which comprises at least two tension balance units, wherein each tension balance unit comprises a rope ring, a balance oil cylinder, at least one magneto-rheological damper and a reversing fork; the balance oil cylinder comprises an oil cylinder body containing hydraulic oil and a piston rod with one end inserted in the oil cylinder body; two ends of the balance oil cylinder are respectively connected with a rope ring and a reversing fork, and the rope ring and the reversing fork are positioned on the central axis of the balance oil cylinder; two ends of the magnetorheological damper are respectively and rigidly connected with two ends of the balance oil cylinder; the oil cylinder bodies of the tension balancing units are communicated with a communicating oil pipe, so that hydraulic oil in the oil cylinder bodies can flow between the oil cylinder bodies of the tension balancing units through the communicating oil pipe. The device can balance the tension between the steel wire ropes, can also effectively inhibit the vibration of the steel wire ropes, and ensures the stability of a lifting system.)

1. A tension balance suspension device is characterized by comprising at least two tension balance units, wherein each tension balance unit comprises a rope ring, a balance oil cylinder, at least one magneto-rheological damper and a reversing fork; the balance oil cylinder comprises an oil cylinder body containing hydraulic oil and a piston rod with one end inserted in the oil cylinder body; two ends of the balance oil cylinder are respectively connected with a rope ring and a reversing fork, and the rope ring and the reversing fork are positioned on the central axis of the balance oil cylinder; two ends of the magnetorheological damper are respectively and rigidly connected with two ends of the balance oil cylinder; the oil cylinder bodies of the tension balancing units are communicated with a communicating oil pipe, so that hydraulic oil in the oil cylinder bodies can flow between the oil cylinder bodies of the tension balancing units through the communicating oil pipe.

2. The tension balance suspension device according to claim 1, wherein the magnetorheological damper comprises a magnetorheological cylinder body filled with magnetorheological fluid, a piston body and a piston shaft, the piston shaft is inserted into the magnetorheological cylinder body, one end of the piston shaft is positioned outside the magnetorheological cylinder body to form a connecting end, the piston body is connected with the part of the piston shaft positioned in the magnetorheological cylinder body, a gap is reserved between the piston body and the inner wall of the magnetorheological cylinder body, and an excitation coil connected with an external power supply is wound in the middle of the piston body; when the piston body reciprocates in the magnetorheological cylinder body, the magnetorheological fluid flows in the gap in a reciprocating mode.

3. The tension balance suspension device according to claim 2, wherein the rope ring and the reversing fork are respectively connected with a first connecting pin and a second connecting pin, one end of the balance oil cylinder is connected with the rope ring through the first connecting pin, and the other end of the balance oil cylinder is connected with the reversing fork through the second connecting pin; one end of the magnetorheological damper is connected with the first connecting pin, and the other end of the magnetorheological damper is connected with the second connecting pin, so that two ends of the magnetorheological damper are respectively and rigidly connected with two ends of the balance oil cylinder; the balance oil cylinder and the magnetorheological damper are arranged between the rope ring and the reversing fork in parallel.

4. The tension balance suspension device as claimed in claim 2, wherein the magnetorheological cylinder has a plurality of insertion grooves in the inner side wall, and the adjustment block with an iron part is inserted into the insertion grooves.

5. A tension balance suspension device as claimed in claim 4, wherein the end of the adjusting block opposite to the inside of the magnetorheological cylinder body is provided with a first inclined surface and a second inclined surface, and the first inclined surface and the second inclined surface respectively face two directions of the reciprocating flow of the magnetorheological fluid in the gap.

6. The tension balance suspension device according to claim 4, wherein a leakage hole in the side wall of the magnetorheological cylinder body is communicated with the side wall of the insertion groove far away from the adjusting block, and the other port of the leakage hole is communicated with the interior of the magnetorheological cylinder body.

7. The tension balance suspension device according to claim 4, wherein the end of the adjusting block opposite to the interior of the magnetorheological cylinder body is coated with an iron sheet, and the iron sheet is the iron part.

8. The tension balance linkage as recited in claim 2, wherein a hollow cylinder coaxial with the magnetorheological cylinder is disposed on a side of the magnetorheological cylinder remote from the connecting end, and the other end of the piston shaft extends out of the magnetorheological cylinder into the hollow cylinder.

Technical Field

The invention relates to a tension balancing device, in particular to a tension balancing suspension device based on a magnetorheological damper.

Background

Due to the characteristics of ultra-depth, high speed, heavy load, strong time variation, large inertia and the like, the deep mine hoisting system is easy to cause severe fluctuation and sudden change of dynamic load due to vibration under multi-disturbance excitation, can cause huge impact on a hoisting container, and seriously threatens the hoisting safety. Therefore, it is necessary to suppress the vibration of the wire rope to ensure the smooth operation of the hoist container.

At present, for the aspect of parameter optimization of the vibration suppression of mine lifting, no effective execution device is available for controlling the vibration generated in the lifting process. Especially in ultra-deep well lifting, due to a plurality of factors such as large end load, high lifting speed, large stress change of a steel wire rope and the like, the negligible vibration in a common mine becomes abnormally severe in ultra-deep well lifting.

Disclosure of Invention

The invention aims to provide a tension balance suspension device based on a magneto-rheological damper, aiming at the defects and shortcomings of the prior art, so that the vibration of a deep mine hoisting system is inhibited, and the safe and stable operation of the hoisting system is ensured.

In order to achieve the purpose, the invention adopts the following technical scheme:

a tension balance suspension device comprises at least two tension balance units, wherein each tension balance unit comprises a rope ring, a balance oil cylinder, at least one magnetorheological damper and a reversing fork; the balance oil cylinder comprises an oil cylinder body containing hydraulic oil and a piston rod with one end inserted in the oil cylinder body; two ends of the balance oil cylinder are respectively connected with a rope ring and a reversing fork, and the rope ring and the reversing fork are positioned on the central axis of the balance oil cylinder; two ends of the magnetorheological damper are respectively and rigidly connected with two ends of the balance oil cylinder; the oil cylinder bodies of the tension balancing units are communicated with a communicating oil pipe, so that hydraulic oil in the oil cylinder bodies can flow between the oil cylinder bodies of the tension balancing units through the communicating oil pipe.

The tension balance suspension device is further designed in that the magnetorheological damper comprises a magnetorheological cylinder body, a piston body and a piston shaft, wherein the magnetorheological cylinder body is filled with magnetorheological fluid, the piston shaft is inserted in the magnetorheological cylinder body, one end of the piston shaft is positioned outside the magnetorheological cylinder body to form a connecting end, the piston body is connected with the part of the piston shaft positioned in the magnetorheological cylinder body, a gap is reserved between the piston body and the inner wall of the magnetorheological cylinder body, and an excitation coil connected with an external power supply is wound in the middle of the piston body; when the piston body reciprocates in the magnetorheological cylinder body, the magnetorheological fluid flows in the gap in a reciprocating mode.

The tension balance suspension device is further designed in that the rope ring and the reversing fork are respectively connected with a first connecting pin and a second connecting pin, one end of the balance oil cylinder is connected with the rope ring through the first connecting pin, and the other end of the balance oil cylinder is connected with the reversing fork through the second connecting pin; one end of the magnetorheological damper is connected with the first connecting pin, and the other end of the magnetorheological damper is connected with the second connecting pin, so that two ends of the magnetorheological damper are respectively and rigidly connected with two ends of the balance oil cylinder; the balance oil cylinder and the magnetorheological damper are arranged between the rope ring and the reversing fork in parallel.

The tension balance suspension device is further designed in that a plurality of insertion grooves are formed in the inner side wall of the magnetorheological cylinder body, and adjusting blocks with iron parts are inserted into the insertion grooves.

The tension balance suspension device is further designed in that the end part of the adjusting block, which is opposite to the inner part of the magnetorheological cylinder body, is provided with a first inclined surface and a second inclined surface, and the first inclined surface and the second inclined surface respectively face two directions of the magnetorheological fluid flowing back and forth in the gap.

The tension balance suspension device is further designed in that a side wall of the insertion groove, which is far away from the adjusting block, is communicated with a drainage hole in the side wall of the magnetorheological cylinder body, and the other port of the drainage hole is communicated with the interior of the magnetorheological cylinder body.

The tension balance suspension device is further designed in that the end part of the adjusting block opposite to the inner part of the magnetorheological cylinder body is coated with an iron sheet, and the iron sheet is the iron part.

The tension balance suspension device is further designed in that one side, far away from the connecting end, of the magnetorheological cylinder body is provided with a hollow cylinder coaxial with the magnetorheological cylinder body, and the other end of the piston shaft extends out of the magnetorheological cylinder body to the hollow cylinder.

The invention has the beneficial effects that: the invention has the advantages of difficult instability, extremely small external energy required, simple structure, rapid response (millisecond level), large output force and continuously adjustable damping force; the adjusting block with the iron part is arranged on the inner side wall of the magnetorheological damper, and the magnetic field generated by the excitation coil of the magnetorheological damper is utilized to attract the adjusting block, so that the cross-sectional area of a gap between the piston body and the inner side wall of the magnetorheological damper can be reduced, the excitation coil can greatly increase the damping force of the magnetorheological fluid when the magnetorheological fluid passes through the gap with smaller power consumption, and the damping force adjusting range of the magnetorheological damper is enlarged.

Drawings

Fig. 1 is a schematic structural view of embodiment 1 of the present invention.

Fig. 2 is a schematic view of the damper structure of the present invention.

FIG. 3 is a schematic view of the internal structure of the magnetorheological damper of the embodiment 2.

Fig. 4 is a partial structural diagram of fig. 3 at B.

FIG. 5 is a diagram illustrating an application state of the embodiment.

Detailed Description

In order to make the objects and technical solutions of the present invention easier to understand, the present invention will be described and explained below with reference to specific embodiments.