Auxiliary device for moving forepoling

Abstract

The utility model relates to a forepoling moving auxiliary device which comprises two bases hinged with first pushing jacks and telescopic stand columns which are arranged on the bases and abut against the top face of a roadway, and the first pushing jacks are connected with a left frame / a right frame of a first set of supports. After the first pushing jack stretches out and the base is pushed in place, the stand column is driven to stretch out and draw back, so that the stand column is lifted to support a roadway top plate, the first pushing jack shrinks, meanwhile, the second pushing jack located between the first set of supports and the second set of supports stretches out, and the first pushing jack pulls the left frame and the right frame to move forwards; the left frame and the right frame are moved in a push-pull combined mode instead of a push-pull combined mode, so that the problem of direction deviation in the forepoling moving process is reduced; through the arrangement of the adjusting jack, the angle of the stand column is adjusted by adjusting stretching and retracting of the jack, so that the stand column forms prop column support, and a fulcrum and enough friction force are provided for the pushing process.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of forepoling, especially to the field of forepoling support moving, and specifically relates to a forepoling support moving auxiliary device. BACKGROUND

[0002] The forepoling support is also called forepoling support, which is a kind of support measure taken in advance of the working face excavation to ensure the stability of the tunnel engineering excavation. The forepoling support adopts a type of 2-arch 1-group arrangement, and each group of supports is symmetrically arranged in the roadway as left and right arches, and the distance of three groups of supports is not less than 20m.

[0003] The moving mode of the forepoling support is that the front and rear supports are mutual fulcrums and step forward. During the use of the forepoling support, the first group of supports is lowered, the second and third groups of supports are used as fulcrums, the first group of supports is pushed forward by the extension of the push-moving jack between the first and second groups of supports, and the moving action of the first group of supports is completed; after the first group of supports is moved to the position, the top plate is supported, the second group of supports is lowered, and the first group of supports is used as the fulcrum, the second group of supports is pulled forward by the contraction of the push-moving jack between the first and second groups of supports, and the moving action of the second group of supports is completed. In this way, the moving action of the third group of supports is completed.

[0004] However, in the actual process, the first group of supports needs the push-moving jack between the first and second groups of supports to extend to push the movement of the first group of supports, and the direction deviation of the supports is prone to occur during the process of moving the supports. CONTENT OF THE UTILITY MODEL

[0005] The utility model provides a forepoling support moving auxiliary device, which gives the first group of supports a guiding action by pulling the first group of supports to move forward, thereby reducing the problem of direction deviation of the supports during the process of moving the supports.

[0006] The utility model is a kind of forepoling support moving auxiliary device, which is realized by the following technical solutions, including the base that is hinged with first push-moving jack, and the telescopic column that is set on the base and is on the roadway top surface, and the adjusting jack that is hinged on the base and pushes the rotation of column, the first push-moving jack is connected with the left arch / right arch of first group of supports.

[0007] In use, the first push-moving jack is extended, the base is pushed to the position, the column is made to extend by driving, the column is raised to support the roadway top plate, the first push-moving jack is retracted, the second push-moving jack between the first and second groups of supports is extended, the left arch / right arch is pulled forward by the first push-moving jack, the moving mode of the left arch / right arch is changed to the combination of pushing and pulling, thereby reducing the problem of direction deviation during the process of moving the forepoling support.

[0008] Preferably, two bases are provided, and the two bases are connected with the left frame and the right frame respectively.

[0009] The two bases ensure that the left frame and the right frame are pulled by the bases, thereby further reducing the problem of direction deviation during the process of moving the forepoling support.

[0010] Preferably, a disc is fixed to the top surface of the column.

[0011] The disc is provided to increase the support area.

[0012] Preferably, the column is hinged to the base, and an adjusting jack for pushing the column to rotate is further hinged to the base.

[0013] The adjusting jack is provided to adjust the angle of the column by adjusting the extension and retraction of the adjusting jack, so that the column forms a raking support to provide a fulcrum and sufficient friction for the pushing process.

[0014] Preferably, a vertical plate is fixed to the upper end surface of the base, and the adjusting jack is hinged to the vertical plate.

[0015] The vertical plate is provided to adjust the height position of the adjusting jack.

[0016] Preferably, a recess is formed in the base, a first rotating shaft is arranged in the recess and is hinged to the column, and the column is inserted into the recess and is connected with the first rotating shaft.

[0017] The recess is provided to position the column.

[0018] Preferably, a baffle is further arranged in front of the recess on the base.

[0019] The baffle is provided to block the sand and stones from entering the recess, thereby avoiding the influence of the sand and stones on the rotation of the column.

[0020] Preferably, the column comprises a jack.

[0021] The utility model discloses beneficial effect is: the first push and go jack stretches out, pushes the base to be in position after, drive the column telescoping, makes the column rise and supports the roadway roof, the first push and go jack contracts, and the second push and go jack between the first group of support and the second group of support stretches out simultaneously, and the first push and go jack pulls left frame and right frame and moves forward, makes the left frame and right frame's frame moving mode by the pushing frame moving changes into the frame moving of push and pull combination, thereby reduces the problem of direction deviation in the process of the advanced support frame moving, appears, through the setting of disc, it is convenient to increase the support area, through the setting of adjusting jack, through the extension of adjusting jack, the angle of column is adjusted, makes the column form the column support, provides the fulcrum and enough friction for the push and go process. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the structure schematic diagram of the utility model;

[0023] Figure 2 It is Figure 1 It is the part of the advanced support frame moving auxiliary device section view;

[0024] The figure shows that:

[0025] 1, column, 2, base, 3, adjusting jack, 4, first push and go jack, 5, first group of support, 6, second group of support, 7, baffle, 8, disc, 9, vertical board, 10, right frame. DETAILED DESCRIPTION

[0026] In order to clearly illustrate the technical features of the scheme, the following through specific implementation, the scheme is described.

[0027] Refer to the accompanying Figures 1-2 The utility model discloses a kind of advanced support frame moving auxiliary device, the auxiliary device is located in the front of first group of support 5, auxiliary device includes two bases 2 corresponding with first group of support 5 Settings, two bases 2 are respectively corresponding with left frame and right frame 10 Settings, first hinge shaft is hinged on base 2, and first push and go jack 4 extending in front-back direction is arranged, the rear end of first push and go jack 4 is hinged with corresponding left frame / right frame 10 by second hinge shaft, first hinge shaft extends along the arrangement direction of left frame and right frame 10, and second hinge shaft extends along height direction.

[0028] Recess is set in base 2, baffle 7 is also provided in the front of recess in base 2, first pivot shaft is arranged in recess, and telescopic column 1 is hinged with first pivot shaft, column 1 is inserted into recess and is connected with first pivot shaft, column 1 is jack, disc 8 is fixedly connected on the top surface of column 1, column 1 stretches upwards, and disc 8 is on the top surface of roadway.

[0029] The upper end surface of the base 2 is fixed with a vertical plate 9, the vertical plate 9 is hinged with an adjusting jack 3, the adjusting jack 3 is connected to the stand column 1, the adjusting jack 3 is located between the stand column 1 and the vertical plate 9, and the vertical plate 9 is located behind the stand column 1.

[0030] In use, the first push jack 4 is extended, the base 2 is pushed to the position, the stand column 1 is driven to extend and retract, the stand column 1 is lifted to support the roof of the roadway, the first push jack 4 is retracted, the second push jack between the first group of supports 5 and the second group of supports 6 is extended, the first push jack 4 pulls the left frame and the right frame 10 to move forward, the moving frame mode of the left frame and the right frame 10 is changed from the pushing moving frame mode to the pushing and pulling combined moving frame mode, so that the problem of direction deviation in the process of moving the advanced support is reduced; the disc 8 is arranged to facilitate increasing the supporting area; the adjusting jack 3 is arranged, the angle of the stand column 1 is adjusted by the extension and retraction of the adjusting jack 3, the stand column 1 forms a raking column support, and the pushing process is provided with a fulcrum and sufficient friction.

[0031] Of course, the above description is not limited to the above examples, and the technical features not described in the utility model can be realized by or using the prior art, which will not be repeated here; the above examples and the drawings are only used to illustrate the technical scheme of the utility model and are not limited to the utility model, the preferred embodiments are described in detail, and those skilled in the art should understand that the changes, modifications, additions or replacements made by those skilled in the art within the essential scope of the utility model do not deviate from the purpose of the utility model, and should also belong to the protection scope of the claims of the utility model.

Claims

1. An advanced support frame shifting auxiliary device, characterized in that: The base (2) is hinged with a first push jack (4), and a stand (1) is arranged on the base (2) and is topped to the roof surface of the roadway, and the first push jack (4) is connected with the left frame / right frame (10) of the first group of supports (5).

2. The advance support shield assist device of claim 1, wherein: The base (2) is provided with two, and the two bases (2) are connected with the left frame and the right frame (10) respectively.

3. The advance support shield assist device of claim 1, wherein: The top surface of the stand (1) is fixedly connected with a disc (8).

4. The advance support shield assist device of claim 1, wherein: The stand (1) is hinged on the base (2), and an adjusting jack (3) for pushing the stand (1) to rotate is further hinged on the base (2).

5. The advance support shield assist device of claim 4, wherein: The upper end surface of the base (2) is fixedly connected with a vertical plate (9), and the adjusting jack (3) is hinged on the vertical plate (9).

6. The advance support shield assist device of claim 1, wherein: A recess is arranged on the base (2), a first rotating shaft is arranged in the recess and is hinged with the stand (1), and the stand (1) is inserted into the recess and is connected with the first rotating shaft.

7. The advance support shield assist device of claim 6, wherein: The base (2) is further provided with a baffle (7) located in front of the recess.

8. The advance support shield assist device of claim 1, wherein: The stand (1) comprises a jack.

Images