CN217300632U - Novel triangular space is strutted from moving device - Google Patents

Abstract

The utility model discloses a novel triangular area supporting self-moving device, which comprises a first supporting unit and a connecting component, wherein the first supporting unit can vertically extend and retract and the connecting component is arranged on the first supporting unit and is parallel to the moving direction of the first supporting unit; the second supporting unit comprises second supporting pieces which are connected to the connecting component in a matching mode, and the number of the second supporting pieces is not less than one; the propelling unit comprises a first propelling piece which is arranged between the first supporting piece and the second supporting piece and can change the distance between the first supporting piece and the second supporting piece; the first supporting unit and the second supporting unit in the utility model form a supporting structure of a triangular area, the propelling unit is used for propelling the distance change of the first supporting unit and the second supporting unit, and the movement of the whole device in the horizontal direction of the fully mechanized mining face can be realized by matching the telescopic change in the supporting units; therefore, the device integrally plays a role in supporting the coal mine roof in real time and can synchronously follow along with the process of withdrawing the hydraulic supports one by one.

Description

Novel triangular space is strutted from moving device

Technical Field

The utility model relates to a colliery is combined and is adopted equipment technical field, especially relates to a novel triangular space is strutted from moving device.

Background

In the coal mine production, in the process of removing the hydraulic support on the fully mechanized mining face, a space formed by the support to be removed, the shield support, the side roof of the old pond and the surrounding rock is called as a triangular area. This area is the accident prone site where the racks are withdrawn.

At present, one or more modes of a single hydraulic prop, I-steel (hinged top beam), a wood pile and a shield support are generally adopted for supporting and protecting a triangular area, the process has a series of problems of high labor intensity, low supporting and protecting strength, low production efficiency, multiple potential safety hazards, high construction cost and the like, and the support withdrawal of the fully mechanized mining face is always a weak link and a difficult point of safety management of coal mine enterprises.

In recent years, coal mine enterprises produce a series of independent topic switches by a production line, a traditional process is replaced by a method of replacing part of single pillars with shield supports and withdrawing the supports with hydraulic support adjusting and moving devices, supporting roofs of triangular region supporting devices replace manpower to make the single pillars to match with I-shaped steel supporting, and supporting mechanization of a fully mechanized mining face is not formed.

SUMMERY OF THE UTILITY MODEL

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract of the specification and the title of the application to avoid obscuring the purpose of this section, the abstract of the specification and the title of the application, and such simplifications or omissions are not intended to limit the scope of the invention.

In view of the above-mentioned problem that exists of current novel triangular space struts from moving device, provided the utility model discloses.

Therefore, the utility model aims at providing a novel triangular space is strutted from moving device, its problem that is used for solving the problem of strutting of triangular space and triangular space are strutted from moving device and are removed.

In order to solve the technical problem, the utility model provides a following technical scheme: a novel triangular area supporting self-moving device comprises a first supporting unit, a second supporting unit and a propelling unit, wherein the first supporting unit comprises a first supporting piece capable of extending and retracting along the vertical direction and a connecting assembly arranged on the first supporting piece and parallel to the moving direction of the first supporting piece; the second supporting unit comprises second supporting pieces which are connected to the connecting assembly in a matching mode, and the number of the second supporting pieces is not less than 1; and the propelling unit comprises a first propelling piece which is arranged between the first supporting piece and the second supporting piece and can change the distance between the first supporting piece and the second supporting piece.

As a novel triangular space is strutted from an optimal selection scheme who moves device, wherein: the first supporting piece comprises a first base piece positioned at the bottom, a first telescopic piece vertically arranged on the first base piece and a first top supporting piece connected to the top of the first telescopic piece; the first telescopic piece can push the first top support piece to move up and down; the second supporting piece comprises a second base piece positioned at the bottom, a second telescopic piece vertically arranged on the second base piece and a second top supporting piece connected to the top of the second telescopic piece; the second telescopic piece can push the second top support piece to move up and down.

The upper end of the first telescopic piece is a telescopic end, and the first top support piece is connected with the telescopic end of the first telescopic piece; the upper end of the second telescopic piece is a telescopic end, and the second top support piece is connected to the telescopic end of the second telescopic piece.

As a novel triangular space is strutted from an optimal selection scheme who moves device, wherein: spacing spout has been seted up in the lateral wall of first top support piece and second top support piece, coupling assembling can cooperate the slip in the spacing spout.

As a novel triangular space is strutted from preferred scheme who moves device, wherein: a limiting sliding groove is formed in the side wall of the second top supporting piece, and the connecting assembly can slide in the limiting sliding groove in a matched mode.

As a novel triangular space is strutted from an optimal selection scheme who moves device, wherein: the overall length of the connecting assembly is greater than the sum of the overall lengths of the first supporting unit and the second supporting unit in the moving direction; and limiting parts are arranged on the side walls of the two ends of the connecting component.

As a novel triangular space is strutted from preferred scheme who moves device, wherein: the overall length of the connecting assembly is greater than the sum of the overall lengths of the second supporting units in the moving direction; one end of the connecting component is connected to the end part side wall of the first supporting component, and the other end of the connecting component is provided with a limiting part.

As a novel triangular space is strutted from an optimal selection scheme who moves device, wherein: the limiting sliding groove is arranged in parallel to the moving direction of the first base part and the second base part and is provided with at least one limiting sliding groove in parallel; the radial section of the limiting sliding groove is I-shaped, and a limiting bulge is arranged in the middle of the groove cavity of the limiting sliding groove.

As a novel triangular space is strutted from an optimal selection scheme who moves device, wherein: the first propelling part is provided with a fixed end and a telescopic end, the fixed end of the first propelling part is connected to the end side wall of the first supporting part, and the telescopic end of the first propelling part is connected to the end side wall of the second supporting part.

As a novel triangular space is strutted from preferred scheme who moves device, wherein: the propelling unit further comprises a second propelling piece which is arranged between the adjacent second supporting pieces; the second propelling part is provided with a fixed end and a telescopic end, the fixed end of the second propelling part is connected to the end side wall of the second supporting part, and the telescopic end of the second propelling part is connected to the adjacent end side wall of the second supporting part.

The utility model has the advantages that:

the first supporting unit and the second supporting unit in the utility model form a supporting structure of a triangular area, the two supporting units are respectively provided with a vertically-installed telescopic piece, so that the supporting of a coal mine roof plate and the required contraction of the device during movement can be realized, the propelling unit is used for propelling the change of the distance between the first supporting unit and the second supporting unit, and the movement of the whole device in the horizontal direction of a fully mechanized mining working surface can be realized by matching the telescopic change in the supporting units; therefore, the device integrally plays a role in supporting the coal mine roof in real time and can synchronously follow along with the process of withdrawing the hydraulic supports one by one.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor. Wherein:

fig. 1 is a view illustrating a retraction scenario of a hydraulic support according to a first embodiment of the present invention.

Fig. 2 is a view showing the supporting effect of the triangular area supporting self-moving device after the hydraulic support is retracted according to the first embodiment of the present invention.

Fig. 3 is a top view of the hydraulic support retracting according to the first embodiment of the present invention.

Fig. 4 is a structural diagram of a novel triangular-area supporting self-moving device of a single-unit second supporting member and a first supporting unit according to a first embodiment of the present invention.

Fig. 5 is a bottom view structural diagram of the novel triangular space supporting self-moving device according to the first embodiment of the present invention.

Fig. 6 is a single structure diagram of the first supporting member and the second supporting member of the novel triangular space supporting self-moving device according to the first embodiment of the present invention.

Fig. 7 is a schematic view of a sectional plane structure of a limiting groove of a novel triangular area supporting self-moving device according to a second embodiment of the present invention.

Fig. 8 is a diagram showing the moving and supporting action state of the novel triangular area supporting and self-moving device according to the second embodiment of the present invention.

Fig. 9 is a schematic view of the overall structure of the novel triangular area supporting self-moving device of the first embodiment of the present invention, which has a lateral supporting and "T" connecting assembly.

Fig. 10 is a structural view of the connection between two sets of second supporting members and the first supporting unit of the novel triangular space supporting self-moving device according to the second embodiment of the present invention.

Fig. 11(a) -11 (j) are diagrams illustrating the operation process of the first supporting unit and the second supporting unit of the novel triangular-area supporting self-moving device according to the second embodiment of the present invention, which alternately support and move.

Fig. 12 is a schematic view of the complete structure of the novel triangular area supporting self-moving device according to the first embodiment of the present invention.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanying the present invention are described in detail below with reference to the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from the specific details set forth herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Furthermore, the references herein to "one embodiment" or "an embodiment" refer to a particular feature, structure, or characteristic that may be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Furthermore, the present invention will be described in detail with reference to the drawings, and in the detailed description of the embodiments of the present invention, for convenience of illustration, the sectional view showing the device structure will not be enlarged partially according to the general scale, and the drawings are only examples, which should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.

In coal mine production, after the stoping of a fully mechanized mining face (stoping face) is finished, along with the forward advancing of the coal mining work, hydraulic supports and other devices arranged on the fully mechanized mining face need to be sequentially withdrawn. In the process of removing the hydraulic supports one by one, a triangular vacant area needing to be supported circularly is formed between the end head of the working face and the (next) hydraulic support to be removed, and the triangular vacant area is called a triangular area for short. The area is a place where accidents of withdrawing the hydraulic support are frequent due to lack of support. Therefore, in the process of withdrawing the hydraulic supports one by one, temporary jacking and supporting are needed to be carried out on the coal mine roof at the triangular area, and collapse of a coal mine roadway and other roof disasters are prevented.

Example 1

Referring to fig. 1 to 8, for the first embodiment of the present invention, a novel triangular space supporting self-moving device is provided, which includes a first supporting unit 100, a second supporting unit 200 and a propelling unit 300, wherein the three units constitute a combined structure. For the convenience of the following structural description and the use description, the three-dimensional space in which the device is defined in the present embodiment has three orthogonal directions, namely, the longitudinal direction, the transverse direction and the vertical direction. The horizontal direction of the front and back advancing of the supporting self-moving device is the longitudinal direction, the other horizontal direction vertical to the longitudinal direction is the transverse direction, and the direction vertical to the longitudinal and transverse planes is the vertical direction.

Based on this, the timbering self-moving device comprises a first timbering unit 100 and a second timbering unit 200, which are arranged front and back in the longitudinal direction (i.e. in the longitudinal direction, the second timbering unit 200 is always positioned in front of the first timbering unit 200 or the first timbering unit 100 is always positioned in front of the second timbering unit 200), where "front" is the traveling direction of the timbering self-moving device.

In the present embodiment, the description will be given taking as an example "the second support unit 200 is always located in front of the first support unit 100". Specifically, the first supporting unit 100 and the second supporting unit 200 can respectively perform respective lifting actions, the propelling unit 300 can realize the change of the distance between the first supporting unit 100 and the second supporting unit 200, the continuous support of the coal mine roof is realized through the alternate lifting and matching of the two supporting units, and the stable walking under the alternate support condition is realized through the propelling unit 300.

The first supporting unit 100 comprises a first supporting member 101 capable of extending vertically and a connecting assembly 102 arranged on the first supporting member 101 and parallel to the moving direction of the first supporting member 101, wherein the first supporting member 101 can lift up and down along the horizontal direction to support a coal mine roof, the connecting assembly 102 is connected to the side wall of the first supporting member 101c on the first supporting member 101 in a matching mode and used for being connected with a second supporting member 201, the second supporting unit 200 and the first supporting unit 100 form a mutually matched whole, and the connecting assembly 102 extends along the advancing direction (namely, the horizontal direction) of the first supporting member 101.

The second supporting unit 200 includes a second supporting member 201, and the structure and function of the second supporting member 201 are the same as those of the first supporting member 101.

The pushing unit 300 includes a first pushing member 301 disposed between the first support 101 and the second support 201, and the first pushing member 301 is located in the traveling direction (i.e. longitudinal direction) of the first support unit 100 and the second support unit 200, and is used for changing the distance between the first support 101 and the second support 201, i.e. for the forward movement of the whole device. Has a fixed end connected to the end side wall of the first top support 101c and a telescopic end connected to the end side wall of the second top support 201 c.

The structure of the "first support member 101" will be described in detail below:

specifically, the first supporting member 101 includes a first base member 101a located at the bottom, a first telescopic member 101b vertically disposed on the first base member 101a, and a first top supporting member 101c connected to the top of the first telescopic member 101 b. The first base part 101a is a base of the first traveling unit 101, directly contacts with the ground, and supports the upper structure of the first traveling unit 101, and the shape of the first base part is not particularly limited, and may be a block or other structural form capable of supporting and fixing. The first extensible member 101b is a vertically extensible member, and is a hydraulic cylinder, preferably a (multi-stage) extensible hydraulic cylinder. The end of the first extensible member 101b that can be extended and retracted is an extensible end.

The lower extreme of first extensible member 101b is connected with the top lateral wall of first basic component 101a, and this "connection" can be fixed, articulated or detachable connection, and it can finally to guarantee that first extensible member 101b can reciprocate in the flexible first piece 101c of pushing up of vertical direction, and the preferred mode installation of directly fixing in this scheme. Further, the upper end of the first telescopic member 101b is connected to the first top support member 101 c.

The first top supporting member 101c is a top beam of the first supporting member 101, which may be a steel beam arranged longitudinally, and is used for directly supporting the lower surface of the coal mine roof to play a role in supporting. Preferably, first extensible member 101b can be a plurality of (the utility model discloses the drawing demonstrates for example with two, but does not restrict the protection scope), according to vertically carrying out interval arrangement, each first extensible member 101 b's flexible end is connected to first jacking piece 101 c's bottom jointly to can control first jacking piece 101 c's lift jointly through the synchronous flexible of a plurality of first extensible members 101b, thereby control first jacking piece 101c whether jack-up colliery roof.

In this embodiment, the first supporting member 101 and the second supporting member 201 have the same structure. Therefore, corresponding to the second supporting member 201, a second base member 201a located at the bottom, a second telescopic member 201b vertically disposed on the second base member 201a, and a second top supporting member 201c disposed at the upper end of the second telescopic member 201b are included. The connection relationship and the function of the second base part 201a, the second expansion part 201b and the first supporting part 101 are the same, and detailed description thereof is omitted.

Further, a limiting sliding groove X is formed in the side walls of the second top supporting piece 101c and the second top supporting piece 201c, and the connecting assembly 102 can slide in the limiting sliding groove X in a matched manner. Specifically, the limiting sliding groove X is formed in parallel with the moving direction of the first base part 101a and the second base part 201a, and is formed in parallel with at least one of the limiting sliding grooves, and the number of the limiting sliding grooves is consistent with that of the rod bodies of the connecting assembly 102. In this embodiment, the number of the single lines is taken as an example for explanation. The limiting sliding groove X is used for being connected with the connecting assembly 102, so that the second supporting unit 200 can be matched with the first supporting unit 100 to form an integrated linkage structure. That is, the connecting assembly 102 can be matched and slid in the limiting sliding groove X in the side walls of the second top-supporting member 101c and the second top-supporting member 201c, when the second top-supporting member 101c or the second telescopic member 201b is contracted, the first base member 101a or the second base member 201a is separated from the working ground, and the first supporting unit 100 or the second supporting unit 200 can be integrally suspended on the connecting assembly 102.

Further, in this embodiment, the overall length of the connecting assembly 102 is greater than the total length of the first supporting unit 100 and the second supporting unit 200 in the moving direction by not less than one "step" of a single movement of the first supporting unit 100 or the second supporting unit 200. And both ends of the rod body of the connecting component 102 are provided with limiting parts 102a for limiting, and at the moment, the whole connecting component 102 is in an I shape. As shown in figures 4-6.

It should be noted that, in this embodiment, only the side wall of the second top supporting member 201c may be provided with a limiting sliding groove X, and the connecting assembly 102 is slidably fitted in the limiting sliding groove X. Specifically, the limiting sliding groove X is formed in parallel with the moving direction of the first base part 101a and the second base part 201a, and is formed in parallel with at least one of the limiting sliding grooves, and the number of the limiting sliding grooves is consistent with that of the rod bodies of the connecting assembly 102. The limiting sliding groove X is used for being connected with the connecting assembly 102, so that the second supporting unit 200 can be matched with the first supporting unit 100 to form an integrated linkage structure. That is, the connecting assembly 102 is slidably fitted in the limiting sliding groove X in the sidewall of the second top supporting member 201c, when the second telescopic member 201b is retracted, the second base member 201a is separated from the working ground, and the second supporting unit 200 can be integrally suspended on the connecting assembly 102.

In this case, one end of the connecting assembly 102 is fixedly connected to the end side wall of the first supporting member 101, one end of the rod body of the connecting assembly 102, which is far away from the first supporting member 101, is provided with a limiting member 102a, the overall length of the limiting member 102a is greater than the sum of the overall lengths of the second supporting unit 200 in the moving direction of the device, and the length of the limiting member 102a is not less than one "step" length of a single movement of the first supporting unit 100 or the second supporting unit 200. At this point, the connecting assembly 102 is "T" shaped, as shown in FIG. 9.

Wherein, the number of the limiting sliding grooves X is matched with the shape and number of the rod body of the connecting component 102, and here, "shape matching" can be understood as: the radial cross section of the connecting assembly 102 and the radial cross section of the limiting chute X can be combined and connected, in this embodiment, the radial cross section of the connecting assembly 102 is i-shaped, and correspondingly, the section of the groove cavity of the limiting chute X is i-shaped, as shown in fig. 7, that is, the width between the middle limiting protrusions X1 at the two sides of the groove cavity is smaller than the width of the upper end and the lower end of the groove cavity, so that the side wall of the i-shaped rod body can be limited at the upper end or the lower end of the i-shaped limiting chute X. Preferably, when the connecting assembly 102 is in a free state, the i-shaped rod body is located at the lower end of the limiting sliding groove X, the distance from the top of the rod body to the top of the limiting sliding groove X is a, and when the connecting assembly 102 is stressed, the distance from the bottom of the rod body to the bottom of the limiting sliding groove X is a. The term "matching" means that the number of the limiting sliding grooves X is the same as the number of the rods of the connecting assembly 102 passing through the second top supporting member 201c, and in this embodiment, the connecting assembly 102 of a single rod is taken as an example, that is, the number of the limiting sliding grooves X and the number of the rods of the connecting assembly 102 passing through the second top supporting member 201c are both 1. When the number of the rods is equal to or greater than 2, the protection scope of the embodiment is also included.

Furthermore, the cross bar at the end of the two rod bodies of the connecting assembly 102 passing through the second supporting member 201c is the limiting member 102a, and the limiting member 102a is disposed to facilitate assembling the plurality of second supporting members 201 in the connecting assembly 102, and also to intercept the second supporting member 201 at the end, so as to prevent the rod bodies of the connecting assembly 102 from falling off from the limiting sliding groove X, and to drive the connecting assembly 102 to move synchronously with the first supporting unit 100 and the second supporting unit 200 during the moving process.

Further, the first base member 101a and the second base member 202a are connected by the first pushing member 301. The arrangement direction of the first supporting part 101 and the second supporting part 201 is consistent with the telescopic direction of the first propelling part 301, so that the first supporting unit 100 or the second supporting unit 200 can keep moving in the longitudinal direction when the first propelling part 301 is telescopic. It should be noted that the first pushing member 301 has a telescopic end and a fixed end, preferably, the fixed end is fixed on the sidewall of the hinge base M at the lower end of the first supporting member 101c, and the telescopic end is connected to the sidewall of the hinge base M at the lower end of the second supporting member 201c, and it should be noted that the telescopic direction of the first supporting member 201c is the forward or backward direction of the device.

In this embodiment, taking a single connection assembly 102 and a single second support member 201 as an example, the moving manner of the first support member 101 or the second support member 201 is as follows: when the first telescopic member 101b of the first supporting member 101 is contracted, because the first top supporting member 101c is connected with the connecting assembly 102 and the first pushing member 301, when the first base member 101a is contracted and lifted by the first telescopic member 101b to fall off the working surface, at this time, although the first top supporting member 101c is in contact with the coal mine roof, the coal mine roof does not generate pressure on the coal mine roof, and therefore, when the first pushing member 301 is started at this time, the first supporting member 101 and the connecting assembly 102 connected with the first supporting member 101 slide and displace due to relative immobility of the second supporting member 201. The same is true of the movement of the second support member 201, but the first support member 101 is required to support the coal mine roof. The requirements for the displacement of the first support 101 or the second support 201 are: one of the two must be ensured to jack up the coal mine roof while the other contracts and moves.

Preferably, in order to ensure that the first pushing member 301 can have enough pushing/pulling force to drive the first supporting member 101 or the second supporting member 201 during operation, a set of mutually parallel first pushing members 301 may be symmetrically disposed between the first supporting member 101c and the second supporting member 201 c. The two first pushing members 301 which are symmetrically arranged can also ensure that the first supporting member 101 or the second supporting member 201 can be kept stable in the process of advancing under the condition of keeping synchronization, so that instability or lane change is prevented.

Further, in order to ensure that the first supporting member 101 and the second supporting member 201 can have a larger step (i.e. a distance of one movement thereof, preferably a gap width formed after one hydraulic support is retracted), it is necessary to ensure that: when the first pushing member 301 is contracted to the shortest length, the opposite inner end surfaces of the first top support 101c and the second top support 102c are closest. This ensures that the maximum extension and retraction length of the first pusher 301 itself is equal to the maximum step distance between the first support 101 and the second support 201.

As shown in fig. 8, the first supporting unit 100 and the second supporting unit 200 can respectively perform respective lifting action and walking action, and the function that the self-moving supporting device can also advance on the premise of continuously jacking the roof of the coal mine is realized through intermittent rotation and cooperation between the two supporting units, and the specific implementation process is as follows:

s1: in the initial state, the first telescopic member 101b and the second telescopic member 201b are both in an extended state, and the first telescopic member 101b and the second telescopic member 201b respectively prop the first top support member 101c and the second top support member 201c against the lower surface of the coal mine roof. And initially, the first supporting unit 100 and the second supporting unit 200 are far away from each other, the first pushing member 301 is in an extended state, and the first supporting unit 100 is close to the limiting member 102a at one end of the connecting member 102.

S2: the first telescopic member 101b is firstly contracted (the second telescopic member 201b is kept still), the first telescopic member pulls the first base member 101a to be lifted up to be separated from the working surface, the first top supporting member 101c is pulled to be sunk to be separated from the top supporting surface, the first supporting unit 100 is hung and suspended by the connecting assembly 102 at the moment, and the pressure of the coal mine roof acts on the second top supporting plate 201c in the second supporting unit 200.

S3: the first pushing member 301 is controlled to contract, and the second base member 102a is stably pressed between the coal mine roof and the working surface and is kept still due to the pressure of the second top supporting member 201 c; when the first pushing member 301 is retracted, the first support unit 100 is pushed to slide on the connecting assembly 102 and approach the second support unit 200 by a step.

S4: after the first supporting unit 100 is integrally slid forward by a step distance and stopped, the first telescopic member 101b is controlled to extend, the first base member 101a at the bottom is lowered again on the working surface, the first top supporting member 101c at the top is pushed up again to be lifted, and the coal mine roof is jacked up again.

S5: when the second telescopic member 201b is retracted (keeping the first telescopic member 101b still), it pulls the second base member 201a to be lifted up and separated from the working surface, pulls the second top support member 201c to sink down and separate from the top support surface, at this time, the second support unit 200 is suspended by the connecting assembly 102, and the pressure of the coal mine roof acts on the first top support member 101c in the first support unit 100.

S6: then, the first pushing member 301 is controlled to extend, and the first base member 101a is stably pressed between the coal mine roof and the working face and is kept still due to the pressure of the first supporting member 101 c; when the first pushing member 301 is extended, it pushes the second supporting unit 200 to slide on the connecting assembly 102 and move away from the first supporting unit 100 by a step distance, so as to pull the first supporting unit 100 which follows by the step distance again. In this step, the sidewall of the second supporting member 201c of the second supporting unit 200 contacts the limiting member 102a of the connecting member 102, and pushes the connecting member 102 to move forward.

S7: after the second supporting unit 200 is integrally moved forward by a step distance and stopped, the second telescopic member 201b is controlled to extend, and the coal mine roof is jacked up again.

Through the above steps S1-S7, a cycle of operation is completed. If the cyclic action is used for periodic reciprocating, the device can continuously move forwards on the premise of continuously jacking the coal mine roof.

Example 2

Referring to fig. 8, a second embodiment of the present invention is different from the first embodiment in that: the first supporting unit 100 further comprises a first lateral member 103, the first lateral member 103 comprises a first lateral plate 103a and a first lateral supporting member 103b hinged to one end of the first lateral plate 103a, one end of the first lateral plate 103a far away from the first lateral supporting member 103b is hinged to the end side wall of the first top supporting member 101c, and one end of the first lateral supporting member 103b far away from the first lateral plate 103a is hinged to the end side wall of the first base member 101 a.

The second supporting unit 200 further comprises a second lateral member 202, the second lateral member 202 comprises a second lateral plate 202a and a second lateral support member 202b hinged to one end of the second lateral plate 202a, one end of the second lateral plate 202a far away from the second lateral support member 202b is hinged to the end side wall of the second top support member 201c, and one end of the second lateral support member 202b far away from the second lateral plate 202a is hinged to the end side wall of the second base member 201 a.

Further, the first lateral member 103 and the second lateral member 202 are used for lateral support of the coal mine roadway by the support device. Specifically, the first lateral member 103 is disposed at a lateral side of the first supporting unit 100, and the "lateral side" may include two lateral sides of the first supporting unit 100 and a side wall of the retreating side, and a lateral single side is taken as an example in this embodiment. In a coal mine roadway, since the hydraulic support adopts the lateral support plate, similar lateral pieces (namely the first lateral piece 103 and the second lateral piece 202) are also arranged in the support unit in order to keep the protection effect of the movable support, and it should be noted that the lateral pieces are not only used for lateral protection of the device, but also improve the support effect of the support unit.

Specifically, the first lateral support 103b and the second lateral support 202b are telescopic devices, preferably hydraulic cylinders or hydraulic push rods. Since the top support heights of the first support unit 100 and the second support unit 200 are the same, the structures and the top support heights of the first lateral member 103 and the second lateral member 202 are also the same, taking the first lateral member 103 as an example, that is, the first lateral member 103 is supported by the first lateral support member 103b, and the top support angle of the first lateral member 103 is determined by the telescopic length of the second lateral support member 202 b.

It should be further noted that the first lateral member 103 may also be specifically two lateral support plates with hinged end portions, the two lateral support plates are always in a hinged and folded state, the opening and closing process is driven by the first telescopic member 101b, and a lateral support effect on the side wall of the coal mine roadway can also be achieved.

The rest of the structure is the same as that of embodiment 1.

Example 3

Referring to fig. 10 to 12, a third embodiment of the present invention is different from the first and second embodiments in that: in the device, the second supporting unit 200 comprises at least 1 second supporting member 201, and when the number of the second supporting members 201 is two or more, the second supporting members 201 are distributed in parallel in the longitudinal direction; the multiple sets of second supporting members 201 have a more stable self-moving effect.

Further, since the number of the second supporting members 201 is greater than 1, the pushing unit 300 further includes a second pushing member 302, and the second pushing member 302 is disposed between the adjacent second supporting members 201; the second pushing member 302 has a fixed end connected to the end sidewall of the second supporting member 201c and a telescopic end connected to the end sidewall of the adjacent second supporting member 201 c. The second pushing member 302 is used for changing the distance between the adjacent second top supporting members 201c, and specifically, it has a fixed end and a telescopic end, the fixed end is fixed or hinged on the side wall of the hinge base M at the lower end of one second top supporting member 201c, and the telescopic end is fixed or hinged on the side wall of the hinge base M at the lower end of another adjacent second top supporting member 201c, and its function is the same as that of the first pushing member 301. This will not be described in detail.

In this embodiment, two second supporting members 201 are used, the connecting assembly 102 is disposed in an i-shape, and the first supporting unit 100 and the second supporting unit 200 move in the following manner: when the first telescopic member 101b of the first supporting member 101 is contracted, since the first top supporting member 101c is connected to the connecting assembly 102 and the first pushing member 301, when the first base member 101a is contracted and lifted by the first telescopic member 101b to fall off the working surface, the first top supporting member 101c is in contact with the coal mine roof but does not generate pressure on the coal mine roof, so that when the first pushing member 301 is started, the first supporting member 101 and the connecting assembly 102 connected thereto are subjected to sliding displacement due to relative immobility of the second supporting member 201. The same is true of the movement process of the first and second supporting members 201, but the coal mine roof is supported by the first supporting member 101 and the second supporting member 201. When the second supporting member 201 moves, the second telescopic member 201b thereof is contracted, the second base member 201a at the bottom thereof is lifted, the top portions of the first supporting member 101 and the first second supporting member 201 are forced and kept still, and the second pushing member 302 is extended, so that the second supporting member 201 is far away from the first supporting member 101 and the first second supporting member 201, thereby generating a displacement step. The requirements for the displacement of the first support 101 or the plurality of second supports 201 are: one of the top supporting pieces must be ensured to shrink and move, and the other top supporting pieces jack up the coal mine roof.

In this embodiment, the overall supporting and moving process is described by taking two second supporting members 201 as an example, and with reference to fig. 11(a) to 11(j), the specific implementation process is as follows:

s1: in an initial state, the first telescopic member 101b and the two second telescopic members 201b are both in an extended state, and the first top supporting member 101c and the two groups of second top supporting members 201c are respectively supported on the lower surface of the coal mine roof by the three members. And initially the first and second support units 100 and 200 are moved away from each other, the first pusher 301 being in an extended state and the second pusher 302 being in a retracted state.

S2: the first telescopic member 101b is first contracted (keeping the two sets of second telescopic members 201b still), and then pulls the first base member 101a to be lifted up and separated from the working surface, the first supporting unit 100 at this time is hung and suspended by the connecting assembly 102 (at this time, the top of the first supporting member 101c is in contact with the coal mine roof, but no force is applied to each other), and the pressure of the coal mine roof acts on the two sets of second supporting plates 201c in the second supporting unit 200.

S3: the first pushing member 301 is controlled to contract, and the second base member 102a is stably pressed between the coal mine roof and the working surface and is kept still due to the bearing pressure of the two groups of second supporting members 201 c; when the first propelling member 301 is contracted, the first supporting unit 100 is pushed to approach the second supporting unit 200 by one step.

S4: after the first supporting unit 100 is integrally slid forward by a step distance and stopped, the first telescopic member 101b is controlled to extend, the first base member 101a at the bottom is lowered again on the working surface, the first top supporting member 101c jacks up the coal mine roof again, and the coal mine roof is jointly propped by the first supporting member 101c and the coal mine roof.

S5: the second telescopic member 201b in the second group of supporting members at the end of the connecting assembly 102 is contracted (keeping the first telescopic member 101b and the first group of second telescopic member 201b still), so that the second group of second base member 201a is pulled to be lifted and separated from the working surface, at this time, the second group of second supporting members 201 are hung and suspended by the connecting assembly 102 (due to the existence of the distance a, the top of the second group of second supporting members 201c is not in contact with the coal mine roof, so that no friction resistance exists, and the movement is more convenient), and the pressure of the coal mine roof acts on the first supporting members 101c in the first supporting unit 100 and the second supporting members 201c of the first group of second supporting units 200.

S6: and then the second pushing member 302 is controlled to extend, and the second supporting member 201 of the second group is pushed out away from the first supporting member 201 of the second group by a step distance as the second supporting member 201c of the first group is pressed and kept still.

S7: controlling the second group of second telescopic members 201b to extend, lowering the second base member 201a at the bottom on the working surface again, and jacking the coal mine roof again by the second jacking member 101c at the top;

s8: then, the first group of second telescopic members 201b is contracted again (the first telescopic member 101b and the second group of second telescopic members 201b are kept still), so that the second group of second base members 201a is pulled to be lifted and separated from the working surface, at this time, the first group of second supporting members 201 are hung and suspended by the connecting assembly 102 (due to the existence of the distance a, the tops of the first group of second supporting members 201c are not contacted with the roof of the coal mine), and the pressure of the roof of the coal mine acts on the first supporting members 101c in the first supporting unit 100 and the second supporting members 201c of the second group of second supporting units 200.

S9: and then the first pushing member 301 is controlled to extend, the second pushing member 302 contracts, and the first supporting member 101 of the first group is integrally pushed out away from the first supporting member 101 by a step distance because the first supporting member 101c is pressed and kept still.

S10: controlling the first group of second telescopic members 201b to extend, lowering the second base member 201a at the bottom on the working surface again, and jacking the coal mine roof again by the second jacking members 101c at the top;

through the above steps S1-S10, a moving cycle with two sets of the second supporting members 201 can be completed. When there are multiple sets of the second supporting members 201, the movement of the other second supporting members 201 can be completed later. If the cyclic action is used for periodic reciprocating, the device can continuously move forwards on the premise of continuously jacking the coal mine roof. When the second supporting members 201 have more groups, the steps S1 to S7 are also performed, wherein the first supporting unit 100 is moved, the connecting member 102 is left by one step, the second supporting members 201 are moved one by one from the end far away from the first supporting plate 101c, and the steps S9 to S10 are repeated cyclically to complete the overall moving support.

Therefore, with the forward advance of coal mining work, even if the hydraulic support is continuously and sequentially withdrawn, the device can continuously follow the coal mining work in time to fill up the vacant positions formed after the hydraulic support is withdrawn, and therefore the roof safety of the triangular area can be continuously guaranteed in the follow-up process.

It should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims (10)

1. The utility model provides a novel triangular space is strutted from moving device which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,

the device comprises a first supporting unit (100) and a connecting assembly (102), wherein the first supporting unit (101) can stretch and retract along the vertical direction, and the connecting assembly (102) is arranged on the first supporting unit (101) and is parallel to the moving direction of the first supporting unit;

a second support unit (200) comprising second support members (201) fittingly connected to the connection assembly (102), the number of the second support members (201) being not less than 1; and the number of the first and second groups,

the propelling unit (300) comprises a first propelling part (301) which is arranged between the first supporting part (101) and the second supporting part (201) and can change the distance between the first supporting part and the second supporting part.

2. The novel triangular space supporting self-moving device according to claim 1, characterized in that: the first supporting piece (101) comprises a first base piece (101a) positioned at the bottom, a first telescopic piece (101b) vertically arranged on the first base piece (101a) and a first top supporting piece (101c) connected to the top of the first telescopic piece (101 b);

the first telescopic piece (101b) can push the first top support piece (101c) to move up and down;

the second supporting part (201) comprises a second base part (201a) positioned at the bottom, a second telescopic part (201b) vertically arranged on the second base part (201a) and a second top supporting part (201c) connected to the top of the second telescopic part (201 b);

the second telescopic piece (201b) can push the second top support piece (201c) to move up and down.

3. The novel triangular space supporting self-moving device according to claim 2, characterized in that: the upper end of the first telescopic part (101b) is a telescopic end, and the first top support part (101c) is connected with the telescopic end of the first telescopic part (101 b);

the upper end of the second telescopic piece (201b) is a telescopic end, and the second top support piece (201c) is connected to the telescopic end of the second telescopic piece (201 b).

4. The novel triangular space supporting self-moving device according to claim 3, characterized in that: spacing spout (X) have been seted up in the lateral wall of first top support piece (101c) and second top support piece (201c), coupling assembling (102) can the cooperation slide in spacing spout (X).

5. The novel triangular space supporting self-moving device according to claim 3, characterized in that: a limiting sliding groove (X) is formed in the side wall of the second top supporting piece (201c), and the connecting assembly (102) can slide in the limiting sliding groove (X) in a matched mode.

6. The novel triangular space supporting self-moving device according to claim 4, characterized in that: the overall length of the connecting component (102) is greater than the sum of the overall lengths of the first supporting unit (100) and the second supporting unit (200) in the moving direction;

the side walls of the two ends of the connecting component (102) are provided with limit pieces (102 a).

7. The novel triangular area supporting self-moving device according to claim 5, characterized in that: the overall length of the connecting component (102) is greater than the sum of the overall lengths of the second supporting unit (200) in the moving direction;

one end of the connecting component (102) is connected to the end side wall of the first supporting component (101), and the other end of the connecting component is provided with a limiting piece (102 a).

8. The novel triangular area supporting self-moving device according to any one of claims 4 to 7, characterized in that: the limiting sliding groove (X) is arranged in parallel to the moving direction of the first base part (101a) and the second base part (201a), and is provided with at least one limiting sliding groove in parallel;

the radial section of the limiting sliding groove (X) is I-shaped, and a limiting bulge (X1) is arranged in the middle of the groove cavity of the limiting sliding groove.

9. The novel triangular area supporting self-moving device according to any one of claims 2 to 7, characterized in that: the first propelling part (301) is provided with a fixed end and a telescopic end, the fixed end of the first propelling part is connected to the end side wall of the first supporting part (101c), and the telescopic end of the first propelling part is connected to the end side wall of the second supporting part (201 c).

10. The novel triangular space supporting self-moving device according to claim 9, characterized in that: the propulsion unit (300) further comprises second propulsion members (302), the second propulsion members (302) being arranged between adjacent second support members (201);

the second propelling part (302) is provided with a fixed end and a telescopic end, the fixed end of the second propelling part is connected to the end side wall of the second top supporting part (201c), and the telescopic end of the second propelling part is connected to the end side wall of the adjacent second top supporting part (201 c).

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