Spraying water supply hose-cable accompanying hanging self-moving device of heading machine secondary operation following machine

Abstract

The utility model relates to a spraying water supply hose-cable accompanying hanging self-moving device of a heading machine secondary conveying following machine. In order to fill up the blank in the prior art, the lifting device of the roadheader comprises a roadheader second conveying frame, a first support, a second support, an upper pulley, a lower pulley, a steel wire rope and a plurality of lifting ring assemblies, the upper pulley and the lower pulley are fixed to the top and the lower portion of the second support respectively, and the steel wire rope is partially erected on the first support and the second support. The lower end of the first support is fixed to a tail frame of a matched belt conveyor, the lower end of the second support is fixed to a second conveying frame of the roadheader, one end of the steel wire rope is fixed to the top end of the first support, and the other end of the steel wire rope sequentially bypasses the upper pulley and the lower pulley. The heading machine is fixed on a tail frame of a matched belt conveyor and is tensioned, and a spraying water supply hose is further fixed on the heading machine following cable in an accompanying mode. The device is simple in structure, solves the problems of expansion and protection of the cable and the water supply hose, and is suitable for the heading machine.

Description

Technical Field

[0001] This utility model relates to a self-moving device for a tunneling machine's secondary transport and following spray water supply hose-cable accompaniment suspension. Background Technology

[0002] During the construction of fully mechanized tunnels, the cables and pipelines of the tunneling machine often drag on the ground. When the tunneling machine moves back and forth, the cables and pipelines need to be dragged manually, which can easily cause damage to the cables and pipelines and waste a lot of manpower.

[0003] Chinese utility model patent CN 219204059 U, published on June 16, 2023, discloses an automatic cable retraction device for a roadheader face. The device includes: a first support mounted on the roadheader, with a supporting pulley on the first support; a second support mounted on the roadheader's secondary transport frame, with an upper pulley and a lower pulley on the second support; a steel wire rope, one end of which is fixed to the secondary transport frame of the roadheader, and the other end passing sequentially around the lower pulley, upper pulley, and supporting pulley and fixed to the roadheader by a tension spring; multiple lifting ring assemblies capable of reciprocating on the steel wire rope between the first and second supports; and the roadheader cable suspended sequentially on the lifting ring assemblies. A damping element limiting the movement range of the lifting ring assemblies is provided on the steel wire rope. This utility model can automatically retract and adjust the length of the steel wire rope between the first and second supports when the roadheader moves forward or backward relative to the secondary transport frame of the roadheader, preventing the roadheader cable from dragging on the ground. The automatic cable retraction device at the tunneling face can only solve the problem of preventing the cable from dragging on the ground between the tunneling machine and the second transport frame of the tunneling machine, but it cannot solve the problem of the cable hanging and moving on the second transport frame of the tunneling machine. Moreover, the wire rope between the first and second supports is affected by its own weight, the weight of the lifting ring assembly and the cable, and is low in the middle and high on both sides, making it easy to concentrate in the middle of the wire rope. Summary of the Invention

[0004] The technical problem to be solved by this utility model is how to fill the above-mentioned gap in the prior art and provide a tunneling machine secondary transport following spray water supply hose-cable accompanying suspension self-moving device.

[0005] To solve the above-mentioned technical problems, this tunneling machine secondary transport accompanying spray water supply hose-cable self-moving device includes a tunneling machine secondary transport frame, a first support, a second support, an upper pulley, a lower pulley, a wire rope, and multiple lifting ring assemblies. The upper pulley and lower pulley are respectively fixed to the top and bottom of the second support. The wire rope is partially erected on the first and second supports. The lifting ring assemblies are suspended on the wire rope between the first and second supports by pulleys and can slide on the wire rope. The lower end of each lifting ring assembly is fixed to the tunneling machine accompanying cable. The device is characterized in that: the first support... The lower end is fixed to the tail frame of the belt conveyor, and the lower end of the second bracket is fixed to the second transport frame of the roadheader. One end of the wire rope is fixed to the top of the first bracket, and the other end passes over the upper pulley from above, then passes over the lower pulley from below, and is finally fixed to the tail support frame of the belt conveyor and tensioned. The upper edge of the upper pulley is higher than the fixing point of the wire rope at the top of the first bracket. The roadheader's following cable is also fixed with a spray water supply hose. The front end of the spray water supply hose is connected to the atomizing nozzle of the roadheader, and the rear end of the spray water supply hose is connected to the outlet of the water supply pump.

[0006] The spray water supply hose and the tunneling machine's accompanying cable can be wrapped together or secured together with external strapping.

[0007] With this design, the tunneling machine's cable and the spray water supply hose are fixed together. During operation, the spray water supply hose is filled with high-pressure water, which strengthens the support and makes it less prone to breakage and bending. It is suspended below the wire rope by the lifting ring assembly, which solves the problems of cable and water supply hose extension, suspension and protection.

[0008] When the second support of the roadheader moves back and forth on the tail frame equipped with a belt conveyor, the lower end of the second support and its upper and lower pulleys move along with it. The wire rope between the first and second supports will become longer or shorter accordingly, but will always remain taut.

[0009] Meanwhile, since the upper edge of the upper pulley is higher than the fixing point of the wire rope at the top of the first support, the shorter the wire rope between the first and second supports, the greater the inclination of the wire rope between them, making it easier for the lifting ring assembly and its cable to get closer to the first support. The structure is compact and the site is aesthetically pleasing and tidy.

[0010] As an optimization, the minimum angle between the line connecting the fixing point of the steel wire rope at the top of the first support and the upper edge of the upper pulley and the horizontal plane is equal to 1°. When the tunneling machine moves outward on the tailstock equipped with the belt conveyor to the front stop point—such as Figure 2As shown, the steel wire rope between the first and second supports is at its longest length. At this point, the angle between the line connecting the fixing point of the steel wire rope at the top of the first support and the upper edge of the upper pulley and the horizontal plane is at its minimum. Practice has shown that this minimum angle of 1° provides the best performance. With this design, when the steel wire rope between the first and second supports is at its longest length, it is closer to horizontal, facilitating cable extension between the two supports; when the steel wire rope is at its shortest length, its inclination is greater, facilitating cable retraction between the two supports.

[0011] This utility model of a tunneling machine secondary transport following spray water supply hose-cable accompanying suspension self-moving device has a simple structure and solves the problems of cable and water supply hose extension and suspension protection, making it suitable for use in tunneling machine secondary transport following. Attached Figure Description

[0012] The following description, in conjunction with the accompanying drawings, further illustrates the present invention's tunneling machine secondary transport following spray water supply hose-cable accompanying suspension self-moving device:

[0013] Figure 1 This is a schematic diagram of the semi-extended state structure of the tunneling machine's secondary transport accompanying spray water supply hose-cable accompanying suspension self-moving device;

[0014] Figure 2 This is a schematic diagram of the maximum extension state of the self-moving device of the tunneling machine's secondary transport and accompanying spray water supply hose-cable suspender.

[0015] Note: Figure 1 , 2 The drooping of the steel wire rope 6 between the first and second supports was ignored. The steel wire rope 6 between the fixing point of the top of the first support 2 and the upper edge of the upper pulley 4 coincides with the line connecting the two.

[0016] In the diagram: 1 is the second support frame of the roadheader, 2 is the first support, 3 is the second support, 4 is the upper pulley, 5 is the lower pulley, 6 is the wire rope, 7 is multiple lifting ring components, 71 is the pulley, 8 is the roadheader's following cable, 9 is the tail support frame of the belt conveyor, 10 is the spray water supply hose, 11 is the cable bracket, S is the horizontal plane, and a is the minimum angle between the line connecting the fixing point of the wire rope 6 at the top of the first support 2 and the upper edge of the upper pulley 4 and the horizontal plane S. Detailed Implementation

[0017] Implementation method one: such as Figure 1-2As shown, the tunneling machine's secondary transport and accompanying spray water supply hose-cable self-moving device includes a tunneling machine secondary transport frame 1, a first support 2, a second support 3, an upper pulley 4, a lower pulley 5, a wire rope 6, and multiple lifting ring assemblies 7. The upper pulley 4 and the lower pulley 5 are respectively fixed to the top and bottom of the second support 3. The wire rope 6 is partially erected on the first support 2 and the second support 3. The lifting ring assembly 7 is suspended on the wire rope 6 between the first support 2 and the second support 3 by pulley 71 and can slide on the wire rope 6. The lower end of each lifting ring assembly 7 is fixed to the tunneling machine's accompanying cable 8.

[0018] The lower end of the first support 2 is fixed to the tail frame 9 of the belt conveyor, and the lower end of the second support 3 is fixed to the second transport frame 1 of the roadheader. One end of the wire rope 6 is fixed to the top of the first support 2, and the other end passes over the upper pulley 4 from above, then passes over the lower pulley 5 from below, and is finally fixed to the tail support frame 9 of the belt conveyor and tensioned. The upper edge of the upper pulley 4 is higher than the fixing point of the wire rope 6 at the top of the first support 2. The roadheader's following cable is also fixed with a spray water supply hose 10. The front end of the spray water supply hose 10 is connected to the atomizing nozzle (not shown in the figure) of the roadheader, and the rear end of the spray water supply hose 10 is connected to the outlet of the water supply pump (not shown in the figure).

[0019] like Figure 2 As shown, the minimum angle α between the line connecting the fixing point of the steel wire rope 6 at the top of the first support 2 and the upper edge of the upper pulley 4 and the horizontal plane S is equal to 1°.

Claims

1. A self-moving device for a tunneling machine's secondary transport and accompanying spray water supply hose-cable, comprising a tunneling machine secondary transport frame, a first support, a second support, an upper pulley, a lower pulley, a wire rope, and multiple lifting ring assemblies. The upper pulley and lower pulley are respectively fixed to the top and bottom of the second support. The wire rope is partially supported on the first and second supports. The lifting ring assemblies are suspended from the wire rope between the first and second supports by pulleys and can slide on the wire rope. The lower end of each lifting ring assembly is fixed to the tunneling machine's accompanying cable. The device is characterized by: The lower end of the first support is fixed to the tail frame of the belt conveyor, and the lower end of the second support is fixed to the second transport frame of the roadheader. One end of the wire rope is fixed to the top of the first support, and the other end passes over the upper pulley from above, then passes over the lower pulley from below, and is finally fixed to the tail support frame of the belt conveyor and tensioned. The upper edge of the upper pulley is higher than the fixing point of the wire rope at the top of the first support. The roadheader's accompanying cable is also fixed with a spray water supply hose. The front end of the spray water supply hose is connected to the atomizing nozzle of the roadheader, and the rear end of the spray water supply hose is connected to the outlet of the water supply pump.

2. The tunneling machine secondary transport following spray water supply hose-cable accompanying suspension self-moving device according to claim 1, characterized in that: The minimum angle between the line connecting the fixing point of the steel wire rope at the top of the first support and the upper edge of the upper pulley and the horizontal plane is 1°.

Images