WO2020006888A1

WO2020006888A1 - Steel wire rope tension automatic balancing device for long-distance rope adjustment

Info

Publication number: WO2020006888A1
Application number: PCT/CN2018/106893
Authority: WO
Inventors: 曹国华; 朱真才; 李康杰; 彭维红; 花纯利; 汤裕; 李翔; 张新
Original assignee: 中国矿业大学; 徐州秩润矿山设备科技有限公司
Priority date: 2018-07-06
Filing date: 2018-09-21
Publication date: 2020-01-09
Also published as: CN108861962A

Abstract

Disclosed is a steel wire rope tension automatic balancing device for long-distance rope adjustment. The steel wire rope tension automatic balancing device is mainly composed of several basic mounting modules mounted in a force transmitting frame (3) after being connected by means of a sleeve (2-4). The basic mounting module comprises two rotary drum rope storage means (1), two planet carriers (2-2) arranged inside the rotary drum rope storage means (1), and four bevel gear transmission mechanisms (2) mounted at two sides of the rotary drum rope storage means (1). The force transmitting frame (3) is mainly composed of a force transmitting shaft (3-1), a side longitudinal beam (3-2), an intermediate longitudinal beam (3-3), a cross beam, angle steel (3-4) and a stand column (3-5). The bevel gear transmission mechanism (2) comprises a set of engaged bevel gears where the angle included between axes thereof is 90 degrees. A bevel pinion (2-1) is mounted, by means of a bearing, on branches (2-2-1) circumferentially and uniformly distributed on the planet carrier (2-2), a tail end of each branch is fixedly connected to an end cover of the rotary drum rope storage means (1), an inner side of the planet carrier (2-2) is mounted on the force transmitting shaft (3-1) by means of a bearing, and an outer side of the planet carrier (2-2) is mounted in a groove (1-1-1) of the planet carrier.

Description

Automatic tension balancing device for steel wire rope with large distance adjustment

Technical field

The invention relates to a steel wire rope tension automatic balancing device for large-range rope adjustment, and is particularly suitable for automatic tension balancing of the hoisting steel wire rope in a multi-rope hoisting of a super-deep vertical shaft hoisting system of a coal mine and a super high-rise building high-speed elevator.

Background technique

With the increase in the amount of coal mining, the vertical shaft is developing in a deeper direction, and the tonnage of the lifting container is also increasing. At the same time, as the building height is increased, the lift distance of the elevator is continuously increased. Therefore, higher requirements are raised for the safety of the lifting and the distance of the rope, and the tension balance of the lifting wire rope becomes very important.

At present, the wire rope tension equalization device mainly applied on the market is designed based on the Pascal principle. The balance is achieved by connecting hydraulic cylinders, the adjustment length is limited, and there is a leakage problem. There is also a tension equalization device designed based on the principle of lever arm balance, which has a short adjustment distance and a large amount of manual adjustment work.

Summary of the invention

In order to overcome the shortcomings of the short adjustment distance of the wire rope tension equalization device on the market, which is no longer suitable for the lifting of ultra-deep vertical shafts and super-high buildings, the present invention provides a steel wire rope tension automatic balancing device for long-distance rope adjustment, which can realize ultra-deep coal mines. The tension of the hoisting wire rope is automatically balanced during the multi-rope hoisting operation of the vertical shaft hoisting system and the ultra-high building high-speed elevator, so that the hoisting process is safe and reliable.

The technical solution adopted by the present invention to solve its technical problems is: It is mainly composed of several basic installation modules connected through a sleeve and installed in a force transmission frame. The basic installation module includes two drum rope storage devices and two drums. The planet carrier inside the rope storage device and four bevel gear transmission mechanisms installed on both sides of the drum rope storage device; the drum rope storage device includes a drum wheel body, and a helical groove is arranged on a rim portion of the drum wheel body The winding directions of the steel wire ropes on the two drum rope storage devices of each basic installation module are opposite. The rope ends of the steel wire ropes are fixed on the outside of the rim, the inside of the drum wheel body is provided with a planet carrier groove, and the drum wheel body is installed on the hub. There is an end cover; the power transmission frame is mainly composed of a force transmission shaft, a side longitudinal beam, a middle longitudinal beam, a cross beam, an angle steel and an upright column. The structural frame of the equal-sized accommodation space, the number of accommodation spaces is the same as the number of the basic installation modules, and the force transmission shaft is transversely arranged in the middle of the structure frame, and the force transmission shaft passes through multiple middle and longitudinal beams And the accommodation space on both sides thereof, the two ends are finally installed on the side longitudinal beams through bearings, the power transmission shafts of adjacent basic installation modules are installed in the same sleeve through the bearings, and the columns are connected to the lifting container; The mechanism includes a meshing bevel gear set with a shaft intersection angle of 90 degrees. The meshing bevel gear set includes a plurality of small bevel gears and two large bevel gears on both sides thereof, and the force transmission shaft passes through the inside of the large bevel gears; the same basic installation module The large bevel gears between the two drum rope storage devices are directly connected back-to-back, and the large bevel gears at both ends are fixed to the side longitudinal beams; the large bevel gears between adjacent basic installation modules cross the middle and longitudinal beams of the power transmission frame and Sleeve connection; the planet carrier has a plurality of branches that are evenly distributed in the circumferential direction, and a small bevel gear of a bevel gear transmission mechanism is installed on each branch through a bearing, and the end of the branch is fixedly connected to the end cover of the drum rope storage device. The inner side of the bracket is mounted on the force transmission shaft through a bearing, and the outer side of the planet carrier is mounted in the groove of the planet carrier of the drum rope storage device.

Compared with the prior art, the long-distance wire rope tension automatic balancing device of the present invention adjusts the rotation angle of the drum rope storage device, shrinks or releases the stored wire rope, adjusts the length of the wire rope, and balances the tension on the wire rope. With a large amount of rope storage, it can achieve large rope adjustment distance, simple structure, modular installation, safe operation, and long service life. It is especially suitable for steel rope tension balance in ultra-deep vertical shafts with large load lifting containers and ultra-high building high-speed elevators. .

BRIEF DESCRIPTION OF THE DRAWINGS

The invention is further described below with reference to the drawings and embodiments.

FIG. 1 is a schematic plan view of the present invention using two basic installation modules as an example.

Fig. 2 is a schematic plan view of the present invention using three basic installation modules as an example.

FIG. 3 is a schematic structural diagram of a basic installation module in an embodiment of the present invention.

Fig. 4 is a sectional view taken along A-A in Fig. 3.

FIG. 5 is a top view of a power transmission frame using two basic installation modules as an example.

FIG. 6 is a top view of a power transmission frame using three basic installation modules as an example.

FIG. 7 is an isometric view of the planet carrier in the embodiment of the present invention.

FIG. 8a is a front view of a roller wheel body in the embodiment of the present invention.

Fig. 8b is a side view of the drum wheel body in the embodiment of the present invention.

FIG. 9 is a schematic structural diagram of a steel wire rope connected to a drum rope storage device.

In the picture: 1. Roller rope storage device, 1-1, roller wheel body, 1-1-1, planet carrier groove, 1-1-2, rope groove, 1-1-3, stiffener, 1-1 -4, lightening hole, 1-1-5, through hole, 2, bevel gear transmission mechanism, 2-1, small bevel gear, 2-2, planet carrier, 2-2-1, branch, 2-2-2 Threaded holes, 2-3, large bevel gears, 2-4, sleeves, 3, force transmission frame, 3-1, force transmission shaft, 3-2, side longitudinal beams, 3-3, middle longitudinal beams, 3 -4, angle steel, 3-5, column, 4, wire rope, 4-1, rope head.

detailed description

In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are part of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

FIG. 1 shows an embodiment of a tension equalization device, which is composed of two basic installation modules connected through a sleeve 2-4. Referring to FIG. 3, each basic installation module includes two drum rope storage devices 1. The planet carrier 2-2 inside the drum rope storage device 1 and four bevel gear transmission mechanisms 2 installed on both sides of the drum rope storage device 1; the basic installation module is fixed on the force transmission shaft 3-1 of the force transmission frame 3, and The force shaft 3-1 is provided with a step in the mounting bearing portion, and a groove is provided on the step to install the elastic retaining ring to fix the bearing, and the mounting bearing portion is finished in steps; the planet carrier 2-2 is fixed in the middle of the drum by an end cover; further Ground, a dust cover can be provided between the two drum rope storage devices 1 and between the drum rope storage device 1 and the side longitudinal beams 3-2 and the middle longitudinal beams 3-3 of the force transmission frame 3. FIG. 4 is a cross-sectional view of AA in FIG. 3, showing a cross-sectional view of the tension equalization device in the middle of the drum rope storage device 1. It can be seen that the bevel gear transmission mechanism 2 includes a meshing bevel gear set with a shaft intersection angle of 90 degrees, and the embodiment meshes The bevel gear set includes a plurality of small bevel gears 2-1 and two large bevel gears 2-3 on both sides thereof. The small bevel gears 2-1 are fixed on the branch 2-2-1 of the planet carrier 2-2. Rotate around the axis, but cannot move axially; the planet carrier 2-2 is inserted into the planet carrier groove 1-1-1 of the drum rope storage device 1, and is positioned by the planes at both ends of the branch 2-2-1; the two ends are large The bevel gear 2-3 is machined with a key groove, and the sleeve 2-4 is connected by a key. The two bevel gears 2-3 in the middle of the drum rope storage device 1 are connected back to back by high-strength bolts. The planet carrier 2-2 and the large The bevel gear 2-3 can rotate freely around the shaft; the middle of the large bevel gear 2-3 is provided with a groove to install an elastic retaining ring to fix the bearing. Since this large bevel gear 2-3 does not bear radial loads, the large bevel gear 2 -3 Thinned in the middle, leaving only a few spokes.

FIG. 5 is a power transmission frame 3 of the embodiment of FIG. 1. The power transmission frame 3 mainly includes a power transmission shaft 3-1, two side longitudinal beams 3-2, a middle longitudinal beam 3-3, and six beams. , Consisting of several angle steels 3-4 and four columns 3-5, side longitudinal beams 3-2, middle longitudinal beams 3-3, beams and columns 3-5 are connected by angle steels 3-4 to form two equally-sized accommodations The structural frame of the space. The number of accommodating spaces is consistent with the number of basic installation modules. The force transmission shaft 3-1 is horizontally arranged in the middle of the structure frame. The transmission shaft 3-1 passes through the middle and longitudinal beams and the two The receiving space on the side is finally installed on the side longitudinal beam 3-2 through bearings, and the power transmission shafts 3-1 of two adjacent basic installation modules are installed in the same sleeve 2-4 through the bearings; the load is transmitted through the power transmission shaft 3-1 is transmitted to the side longitudinal beam 3-2 and the middle longitudinal beam 3-3, and the longitudinal beam passes the angle steel 3-4 to transmit the load to the column 3-5 through bolts, and the column 3-5 is directly connected to the lifting container , To transfer the load to the load-bearing parts of the lifting container (such as buckets, cars).

FIG. 7 shows a planet carrier 2-2 in the embodiment. The planet carrier 2-2 has four branches 2-2-1 evenly distributed in the circumferential direction, and each branch 2-2-1 is provided with a bevel gear at Stepped shaft, the end of the branch 2-2-1 is provided with a threaded hole 2-2-2 for fixed connection with the end cover of the drum rope storage device 1, and a bevel gear is mounted on each branch 2-2-1 through a bearing The small bevel gear 2-1 of the transmission mechanism 2 and the planetary carrier 2-2 can change the number of branches 2-2-1 of the planetary carrier 2-2 according to the actual situation, and increase or decrease the number of small bevel gears 2-1. The inside of the end planet carrier 2-2 of the branch 2-2-1 is mounted on the force transmission shaft 3-1 through a bearing, and the outside of the planet carrier 2-2 is installed in the planet carrier groove 1-1-1 of the drum rope storage device 1. 1 within. The inner side of the planet carrier 2-2 is provided with a groove for installing an elastic retaining ring to further fix the bearing. The two ends of the branch 2-2-1 and the planet carrier recess 1-1-1 are ground to increase the contact area.

The drum rope storage device 1 in the embodiment shown in FIGS. 8a and 8b includes a drum wheel body 1-1, and a rim portion of the drum wheel body 1-1 is provided with a spiral-shaped rope groove 1-1-2, each The winding direction of the steel wire rope 4 on the two drum rope storage devices 1 of the basic installation module is opposite. One end of the steel wire rope 4 is cast with a rope head 4-1, and is wound around the rope groove 1-1-2 by the winding method shown in FIG. The rope head 4-1 of 4 is fixed to the outside of the rim through the through hole 1-1-5 on the spokes; the inside of the roller wheel body 1-1 is provided with a planet carrier groove 1-1-1, and the roller wheel body 1- An end cap is attached to the hub of 1. Preferably, a rib 1-1-3 is provided on the edge of the spoke of the drum wheel body 1-1, and a reducing hole 1-1-4 is provided in the middle of the reinforcing rib 1-1-3 to reduce the overall weight; specifically, The hub of the roller wheel body 1-1 is drilled with a screw hole for installing an end cover to fix the planet carrier 2-2.

The bearing described in the embodiment is a needle roller bearing. The inner and outer rings are allowed to be separated. The outer ring is fixed by an elastic retaining ring in the hole, and the inner ring is fixed by the elastic retaining ring of the shaft.

The embodiment of FIG. 1 is a multi-degree-of-freedom system. The principle of automatic equalization of the steel wire rope tension for large-range rope adjustment is as follows:

When the tension of the steel wire rope is uneven during the lifting process, the drum rope storage device 1 increases or decreases the length of the wire rope 4 by rotating, thereby changing the tension on the wire rope 4. After the adjustment is completed, the drum rope storage device 1 no longer rotates; At this time, the torque acting on the drum wheel body 1-1 by the wire rope 4 is balanced by the large bevel gears 2-3 at both ends of the planet carrier 2-2; the large bevel gear 2-3 shares a small hammer gear 2-1. Since the small bevel gear 2-1 is stationary and the torque is balanced, the large bevel gear 2-3 at both ends of the planet carrier 2-2 provides the same torque; the large bevel gear 2-3 between the drum rope storage device 1 is connected back to back by bolts, Or it can be connected through the sleeve 2-4 with a key. The two large bevel gears 2-3 are balanced by force, and the torque is the same in the opposite direction. Therefore, the adjacent roller wheels 1-1 bear the same torque; further, because the rope grooves 1-1-2 have the same diameter, the tension of the wire ropes on the adjacent roller wheels 1-1 is the same; the same.

In the above embodiment, two basic modules and four steel wire ropes 4 are taken as an example. During actual use, installation modules may be added or removed according to actual requirements. FIG. 2 shows an automatic tension equalizing device with three basic installation modules, and the working principle is the same as that of the embodiment in FIG. 1. FIG. 6 is a structural diagram of a power transmission frame 3 of an embodiment of an automatic tension equalizing device installed with three basic installation modules. The difference from the structure of the power transmission frame 3 of the embodiment of FIG. 1 shown in FIG. 5 is that an accommodation is added. space.

The above are only preferred embodiments of the present invention, and do not limit the present invention in any form. Any simple modifications and equivalent changes made to the above embodiments in accordance with the technical essence of the present invention fall into the present invention. Within the scope of the invention.

Claims

The utility model relates to an automatic balancing device for tension of a steel wire rope with a large distance, which is mainly composed of several basic installation modules connected through a sleeve (2-4) and installed in a force transmission frame (3). Including two drum rope storage devices (1), two planet carriers (2-2) arranged inside the drum rope storage devices (1), and four bevel gear transmission mechanisms installed on both sides of the drum rope storage devices (1) (2);

The drum rope storage device (1) includes a drum wheel body (1-1), and a rim portion of the drum wheel body (1-1) is provided with a spiral-shaped rope groove (1-1-2). The winding directions of the wire ropes (4) on the two drum rope storage devices (1) where the module is installed are opposite. The rope ends (4-1) of the wire ropes (4) are fixed on the outside of the rim. The inside is provided with a planet carrier groove (1-1-1), and an end cover is installed on the hub of the drum wheel body (1-1);

The power transmission frame (3) is mainly composed of a power transmission shaft (3-1), a side longitudinal beam (3-2), a middle longitudinal beam (3-3), a cross beam, an angle steel (3-4) and an upright (3 -5) composition, the side longitudinal beam (3-2), the middle longitudinal beam (3-3), the crossbeam and the column (3-5) are connected by angle steel (3-4) to form a plurality of equal-sized accommodation spaces Structure frame, the number of accommodating spaces is the same as the number of basic installation modules. The force transmission axis (3-1) is horizontally arranged in the middle of the structure frame, and the force transmission axis (3-1) passes through multiple middle and longitudinal beams (3 -3) and the accommodating spaces on both sides thereof, the two ends are finally installed on the side longitudinal beam (3-2) through bearings, and the power transmission shafts (3-1) of adjacent basic installation modules are installed on the same sleeve (through bearings) 2-4), the upright (3-5) is connected with the lifting container;

The bevel gear transmission mechanism (2) includes a meshing bevel gear set with a shaft intersection angle of 90 degrees, and the meshing bevel gear set includes a plurality of small bevel gears (2-1) and two large bevel gears (2) on both sides thereof. -3), the force transmission shaft (3-1) passes through the inside of the large bevel gear (2-3); the large bevel gear (2-3) between the two drum rope storage devices (1) of the same basic installation module is back to back Directly connected, the large bevel gears (2-3) at both ends are fixed on the side longitudinal beam (3-2); the large bevel gears (2-3) between adjacent basic installation modules cross the force transmission frame (3) The middle longitudinal beam (3-3) is connected with the sleeve (2-4);

The planet carrier (2-2) has a plurality of branches (2-2-1) evenly distributed in the circumferential direction, and a small cone of a bevel gear transmission mechanism (2) is mounted on each branch (2-2-1) through a bearing. The end of the gear (2-1), the branch (2-2-1) is fixedly connected to the end cover of the drum rope storage device (1), and the inside of the planet carrier (2-2) is mounted on the force transmission shaft (3- 1), the outer side of the planet carrier (2-2) is installed in the planet carrier groove (1-1-1) of the drum rope storage device (1).
The device for automatically adjusting the tension of a steel wire rope with a large distance according to claim 1, wherein the large bevel gear (2-3) between the adjacent basic installation modules is fixed to the sleeve (2) by a key. -4), key grooves are processed on the large bevel gear (2-3); the large bevel gears (2-3) at both ends of the same basic mounting module are fixed back to back by high-strength bolts on the side longitudinal beam (3-2) The middle part of the large bevel gear (2-3) is provided with a groove for mounting an elastic retaining ring for fixing the bearing.
The device for automatically adjusting the tension of a steel wire rope with a large distance according to claim 1, characterized in that: the edges of the spokes of the drum wheel body (1-1) are provided with reinforcing ribs (1-1-3) to strengthen A relief hole (1-1-4) is provided in the middle of the rib (1-1-3), and a screw hole for installing an end cover is drilled on the hub of the drum wheel body (1-1).
The automatic tension balancing device for steel wire ropes for large-range rope adjustment according to claim 1, characterized in that: between the drum rope storage devices (1) and between the drum rope storage devices (1) and the force transmission frame (3) A dust cover is provided between each of the longitudinal beams.
The automatic tension balancing device for a steel wire rope with large distance adjustment according to claim 1, characterized in that the angle steel (3-4) is connected to the longitudinal beam, the vertical column (3-5) and the cross beam through high-strength bolts. ; The lifting container connected to the upright (3-5) is a bucket or a car.
The device for automatically adjusting the tension of a steel wire rope with large distances according to claim 1, characterized in that: the power transmission shaft (3-1) has a step in the mounting bearing portion, and the step is provided for mounting an elastic stop Groove in the circle.
The long-distance wire rope tension automatic balancing device according to claim 1, characterized in that the inner side of the planet carrier (2-2) is provided with a groove for installing an elastic retaining ring.
The device for automatically adjusting the tension of a steel wire rope with a large distance according to claim 1, wherein the planet carrier (2-2) has four branches (2-2-1), and each branch ( 2-2-1) The mounting bevel gear is a stepped shaft, and the end of the branch is provided with a threaded hole (2-2-2) for fixing the end cover.
The device for automatically adjusting the tension of a steel wire rope with a large distance according to claim 1, wherein the bearings are all needle roller bearings, and the inner ring and the outer ring are separated, and the outer ring is fixed by a hole with an elastic retaining ring. The ring is fixed by the shaft with an elastic retaining ring.