Tandem type self-moving forepoling

Abstract

The invention discloses a tandem type self-moving advance support which comprises a plurality of telescopic stand columns, top beams, a sliding rail and a push-pull cylinder, each telescopic stand column is vertically arranged, the multiple telescopic stand columns are sequentially arranged in the length direction of the sliding rail, the top beam is arranged at the top of each telescopic stand column, the top beams are provided with sliding ways, and the sliding rails are arranged on the sliding rails. The slide rail penetrates through the slideway and is slidably connected with the top beam; the number of the push-and-pull cylinders is multiple, the push-and-pull cylinders and the top beams are arranged in a one-to-one correspondence mode, each push-and-pull cylinder is arranged in the length direction of the sliding rail, one end of each push-and-pull cylinder is hinged to the corresponding top beam, and the other end of each push-and-pull cylinder is connected with the sliding rail. The device has the advantages that self-moving in the length direction of the sliding rail can be achieved in a grouping control mode, the whole device is simple in structure, small in occupied space, suitable for various roadways and high in universality, an original roadway support cannot be damaged in the moving process, the stable supporting effect can still be achieved in the moving process, and the device is safer, more reliable and suitable for popularization and application. And the field operation safety can be effectively guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel support, in particular to a longitudinal self-moving advance support. Background Art

[0002] Due to the conditions of the tunnel roof, the two tunnel support methods of the coal mine fully mechanized mining face include metal arch support, anchor net support and combined support. Affected by the roof support method, the advanced support method of the fully mechanized mining face is greatly restricted.

[0003] Single-column support or unit supports are generally used in the advance area of ​​metal arch tunnels, and advance supports are not applicable. When using single-column support or unit supports, personnel need to frequently move the single-column or unit supports. The advance support area, especially the advance support area of ​​the transport tunnel, is narrow, and personal injury accidents are prone to occur during transportation. In addition, the operation time is long, the empty roof time is long, and the single-column strength is low, which has an adverse effect on the roof support.

[0004] The advance area of ​​anchor-net tunnels is typically supported by advance supports, single-column supports, or unit supports. The forward movement of the advance supports can leave the roof partially empty and damage the existing tunnel support, easily causing the roof to sink or cave in. Existing advance supports are also slow to move, bulky, and unstable, requiring adjustments during movement. This can be difficult and increase the time it takes to empty the roof, significantly impacting personal safety. Summary of the Invention

[0005] To this end, the present invention provides a longitudinal self-moving advance support to solve the above-mentioned problems in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] According to a first aspect of the present invention, a longitudinal self-moving advance support comprises a telescopic column, a top beam, a slide rail and a push-pull cylinder, wherein the number of the telescopic columns is multiple, each of the telescopic columns is vertically arranged, and the multiple telescopic columns are sequentially arranged along the length direction of the slide rail, and the top beam is provided on the top of each telescopic column, and the top beam is provided with a slide rail, and the slide rail passes through the slide rail and is slidably connected to the top beam;

[0008] There are multiple push-pull cylinders, which are arranged in a one-to-one correspondence with the top beams. Each push-pull cylinder is arranged along the length direction of the slide rail. One end of the push-pull cylinder is hinged to the top beam, and the other end of the push-pull cylinder is connected to the slide rail.

[0009] Furthermore, it also includes a mounting seat, which is arranged at one end where the push-pull cylinder is connected to the slide rail, the push-pull cylinder is hinged to the mounting seat, and the mounting seat is connected to the slide rail.

[0010] Furthermore, the mounting seat and the slide rail are connected by bolts.

[0011] Furthermore, it also includes a base, and the bottom of each telescopic column is provided with the base.

[0012] Furthermore, the slideway is arranged along the axis of the top beam.

[0013] Furthermore, there are two slide rails and two slide ways, and the two slide ways are symmetrically arranged along the axis of the telescopic column. The two slide ways are slidably connected to one slide rail respectively.

[0014] Furthermore, lifting ears are respectively provided on both sides of the top beam, the two lifting ears are symmetrically arranged along the axis of the telescopic column, and each of the lifting ears is respectively provided with the slideway.

[0015] Furthermore, the telescopic column and the push-pull cylinder are both hydraulic telescopic cylinders.

[0016] Furthermore, it also includes a hydraulic control system, which is used to drive the telescopic column and the push-pull cylinder to operate.

[0017] Furthermore, the telescopic column and the top beam are connected by a pin shaft.

[0018] The present invention has the following advantages: during use, self-movement along the length direction of the slide rail can be achieved through group control. The entire device has a simple structure, occupies a small space, can be applied to various tunnels, has strong versatility, will not damage the original tunnel support during movement, and can still achieve a stable supporting effect during movement. It is safer and more reliable and can effectively ensure the safety of on-site operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely illustrative, and those skilled in the art can derive other implementation drawings based on the provided drawings without inventive effort.

[0020] The structures, proportions, sizes, etc. illustrated in this specification are intended solely to complement the contents disclosed herein and to facilitate understanding and reading by persons skilled in the art. They are not intended to limit the conditions under which the present invention may be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportions, or adjustments in sizes, without affecting the efficacy and objectives of the present invention, shall remain within the scope of the technical contents disclosed herein.

[0021] Figure 1 A side view of a longitudinal self-moving advance support provided in some embodiments of the present invention.

[0022] Figure 2 A front view of a longitudinal self-moving advance support double-track structure provided in some embodiments of the present invention.

[0023] Figure 3 A front view of a longitudinal self-moving advance support monorail structure provided in some embodiments of the present invention.

[0024] Figure 4 A schematic diagram of the operation process of a longitudinal self-moving advance support provided in some embodiments of the present invention.

[0025] In the figure: 1. Base, 2. Telescopic column, 3. Slide, 4. Slide rail, 5. Top beam, 6. Push-pull cylinder, 7. Mounting base. DETAILED DESCRIPTION

[0026] The following describes the implementation of the present invention using specific embodiments. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. Obviously, the embodiments described are only a portion of the present invention, not all of it. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are intended to fall within the scope of protection of the present invention.

[0027] Example 1

[0028] like Figures 1 to 4 As shown, a longitudinal self-moving advance support in an embodiment of the first aspect of the present invention includes a telescopic column 2, a top beam 5, a slide rail 4 and a push-pull cylinder 6. The number of the telescopic columns 2 is multiple, and the output end of each telescopic column 2 is vertically upward. The multiple telescopic columns 2 are sequentially arranged along the length direction of the slide rail 4. The top of each telescopic column 2 is provided with a top beam 5, and the top beam 5 is provided with a slide 3. The slide rail 4 passes through the slide 3 and is slidably connected to the top beam 5.

[0029] There are multiple push-pull cylinders 6, and the push-pull cylinders 6 are arranged in a one-to-one correspondence with the top beams 5. Each push-pull cylinder 6 is arranged along the length direction of the slide rail 4. One end of the push-pull cylinder 6 is hinged to the top beam 5. Specifically, a connecting ear is provided on the top beam 5. One end of the push-pull cylinder 6 is connected to the connecting ear through a hinge shaft, and the other end of the push-pull cylinder 6 is connected to the slide rail 4.

[0030] In this embodiment, it should be noted that it also includes a base 1 and a mounting seat 7. A base 1 is provided at the bottom of each telescopic column 2; the mounting seat 7 is arranged at one end where the push-pull cylinder 6 is connected to the slide rail 4, the push-pull cylinder 6 is hinged to the mounting seat 7, and the mounting seat 7 is connected to the slide rail 4, and the mounting seat 7 and the slide rail 4 are connected by bolts.

[0031] Further, if Figure 4 As shown, the telescopic columns 2 are numbered from left to right along the length direction of the slide rail, and then the telescopic columns 2 are divided into odd groups and even groups. The steps for using the entire device are as follows:

[0032] like Figure 4 As shown in S1, when the telescopic columns 2 of the odd and even groups are in the extended state, the base 1 at the bottom and the top beam 5 at the top of each telescopic column 2 are in contact with the ground and the roof of the tunnel respectively, forming a supporting effect on the tunnel; when it is necessary to move forward, as shown in FIG. Figure 4 As shown in S2, first control the odd-numbered telescopic columns 2 to retract completely, so that the top beam 5 and the base 1 corresponding to the odd-numbered telescopic columns 2 are separated from the tunnel roof and the ground respectively. At this time, the even-numbered telescopic columns 2 form a supporting effect on the tunnel. Then control the push-pull cylinder 6 corresponding to the odd-numbered telescopic columns 2 to retract, and move the odd-numbered telescopic columns 2 forward one step along the length direction of the slide rail 4. Next, as shown in Figure 4 As shown in S3, the telescopic columns 2 of the odd group are controlled to extend, and then the telescopic columns 2 of the even group are controlled to retract, so that the top beam 5 and the base 1 corresponding to the telescopic columns 2 of the even group are separated from the tunnel roof and the ground respectively. At this time, the telescopic columns 2 of the odd group form a supporting effect on the tunnel. Then, the push-pull cylinder 6 corresponding to the telescopic columns 2 of the even group is controlled to retract, and the telescopic columns 2 of the even group are moved forward one step along the length direction of the slide rail 4; next, the telescopic columns 2 of the even group are controlled to extend. At this time, the telescopic columns 2 of the odd group and the telescopic columns 2 of the even group jointly form a supporting effect on the tunnel. Finally, all the push-pull cylinders 6 are controlled to extend, and the slide rail 4 is moved forward one step, as shown in FIG. Figure 4 As shown in S4, the entire support is moved forward one step; if it is necessary to continue moving forward, the above-mentioned forward movement steps can be repeated.

[0033] The technical effect achieved by this embodiment is: during use, self-movement along the length direction of the slide rail 4 can be achieved through group control. The entire device has a simple structure, occupies a small space, can be applied to various tunnels, has strong versatility, will not damage the original tunnel support during movement, and can still achieve stable support during movement, which is safer and more reliable and can effectively ensure the safety of on-site operations.

[0034] Example 2

[0035] This embodiment provides another longitudinal self-moving advance support, the structure of which includes all the contents of embodiment 1, and only the different parts are described below.

[0036] In this embodiment, if Figure 3 As shown, a single slide rail structure is adopted, the slide 3 is set along the axis of the top beam 5, the slide 3 is located directly above the top of the corresponding telescopic column 2, and a single slide rail 4 passes through the slide in each top beam 5 in sequence.

[0037] In this embodiment, it should be noted that the cross sections of the slideway 3 and the slide rail 4 are both rectangular, and the slideway 3 and the slide rail 4 are adapted to each other; the top beam 5 and the telescopic column 2 are connected by a pin in the middle to facilitate disassembly and assembly.

[0038] The technical effect achieved by this embodiment is: a single slide rail structure is adopted, the overall structure is simple, and the space occupied is small, which is more suitable for lanes with smaller internal spaces.

[0039] Example 3

[0040] This embodiment provides another longitudinal self-moving advance support, the structure of which includes all the contents of embodiment 1, and only the different parts are described below.

[0041] In this embodiment, if Figure 2 As shown, a double-slide rail structure is adopted, with two slide rails 4 and two slideways 3. The two slideways 3 are symmetrically arranged along the axis of the telescopic column 2, and the two slideways 3 are slidably connected to one slide rail 4 respectively.

[0042] In this embodiment, it should be noted that, lifting ears are respectively provided on both sides of the top beam 5 , the lifting ears and the top beam 5 are an integral structure, the two lifting ears are symmetrically arranged along the axis of the telescopic column 2 , and each lifting ear is respectively provided with a slide 3 .

[0043] Furthermore, in order to maintain stability, a plurality of lifting ears can be symmetrically provided on both sides of the top beam 5. Specifically, Figure 1 As shown, two lifting ears can be provided on both sides of the top beam 5 respectively.

[0044] The technical effect achieved by this embodiment is: the dual-slide rail structure is adopted, the overall structure is more stable, and the smooth operation of the entire structure can be effectively guaranteed.

[0045] Example 4

[0046] like Figures 1 to 4 As shown, this embodiment provides another longitudinal self-moving advance support, the structure of which includes all the contents of embodiment 1, and only the different parts are described below.

[0047] In this embodiment, a hydraulic control system is also included. The telescopic column 2 and the push-pull cylinder 6 are both hydraulic telescopic cylinders. The hydraulic system includes a hydraulic oil supply system and a control system. The hydraulic control system is used to supply oil to the telescopic column 2 and the push-pull cylinder 6 and drive the telescopic column 2 and the push-pull cylinder 6 to operate.

[0048] In this embodiment, it should be noted that the hydraulic system can adopt the original hydraulic system at the construction site, can be programmed using a control system, and the entire device can be controlled automatically by a program, or can be remotely controlled via the Internet.

[0049] The technical effect achieved by this embodiment is that by setting up a hydraulic control system, the entire device can be automatically operated or remotely controlled without the need for human intervention on site, which is safer and more reliable.

[0050] Although the present invention has been described in detail above using general descriptions and specific embodiments, it will be apparent to those skilled in the art that modifications and improvements may be made thereto. Therefore, such modifications and improvements, without departing from the spirit of the present invention, are intended to be within the scope of protection claimed herein.

[0051] The terms "upper", "lower", "left", "right", "middle", etc. used in this specification are only for the convenience of description and are not intended to limit the scope of the present invention. Changes or adjustments to their relative relationships should be regarded as within the scope of the present invention without substantially changing the technical content.

Claims

1. A longitudinal self-moving advance support, characterized in that: The invention comprises a telescopic column (2), a top beam (5), a slide rail (4) and a push-pull cylinder (6), wherein the number of the telescopic columns (2) is multiple, each of the telescopic columns (2) is vertically arranged, and the multiple telescopic columns (2) are sequentially arranged along the length direction of the slide rail (4), and the top of each telescopic column (2) is provided with the top beam (5), and the top beam (5) is provided with a slideway (3), and the slide rail (4) passes through the slideway (3) and is slidably connected to the top beam (5); There are multiple push-pull cylinders (6), and the push-pull cylinders (6) are arranged in a one-to-one correspondence with the top beams (5). Each push-pull cylinder (6) is arranged along the length direction of the slide rail (4). One end of the push-pull cylinder (6) is hinged to the top beam (5), and the other end of the push-pull cylinder (6) is connected to the slide rail (4).

2. A longitudinal self-moving advance support according to claim 1, characterized in that: It also includes a mounting seat (7), which is arranged at one end of the push-pull cylinder (6) connected to the slide rail (4), the push-pull cylinder (6) and the mounting seat (7) are hinged, and the mounting seat (7) is connected to the slide rail (4).

3. The longitudinal self-moving advance support according to claim 2 is characterized in that: The mounting seat (7) and the slide rail (4) are connected by bolts.

4. The longitudinal self-moving advance support according to claim 1 is characterized in that: It also includes a base (1), and the bottom of each telescopic column (2) is provided with the base (1).

5. The longitudinal self-moving advance support according to claim 1 is characterized in that: The slideway (3) is arranged along the axis of the top beam (5).

6. The longitudinal self-moving advance support according to claim 1 is characterized in that: There are two slide rails (4) and two slide ways (3), and the two slide ways (3) are symmetrically arranged along the axis of the telescopic column (2). The two slide ways (3) are respectively slidably connected to one slide rail (4).

7. The longitudinal self-moving advance support according to claim 6 is characterized in that: Lifting ears are respectively provided on both sides of the top beam (5), and the two lifting ears are symmetrically arranged along the axis of the telescopic column (2), and each lifting ear is respectively provided with the slideway (3).

8. The longitudinal self-moving advance support according to claim 1 is characterized in that: The telescopic column (2) and the push-pull cylinder (6) are both hydraulic telescopic cylinders.

9. The longitudinal self-moving advance support according to claim 8 is characterized in that: It also includes a hydraulic control system, which is used to drive the telescopic column (2) and the push-pull cylinder (6) to operate.

10. The longitudinal self-moving advance support according to claim 1 is characterized in that: The telescopic column (2) and the top beam (5) are connected by a pin shaft.

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