阅读说明：本技术 一种煤矿临时支护装置 (Temporary support device for coal mine ) 是由 王毅 黄文祥 于 2021-01-20 设计创作，主要内容包括：本发明涉及煤矿开采技术领域,公开了一种煤矿临时支护装置,包括底板和驱动单元,底板上垂直固定连接有导向板,导向板上竖向滑动连接有安装箱,安装箱上开设有第一滑移腔和第二滑移腔,安装箱上横向开设有横孔,横孔内横向滑动连接有移动杆,移动杆的两端均为斜面,第一滑移腔内同轴设有驱动柱和螺纹柱,驱动柱与第一滑移腔竖向滑动配合,螺纹柱的一端与驱动柱转动配合,螺纹柱与第一滑移腔螺纹配合,驱动柱的底端为斜面；第二滑移腔内同轴设有推动杆和立杆,立杆的一端与推动杆同轴固定连接,推动杆的底端为斜面,推动杆与第二滑移腔的顶端之间设有复位件,立杆的顶端固定连接有支护板。本发明能够提高对巷道的支撑作用,避免巷道出现坍塌。(The invention relates to the technical field of coal mining, and discloses a temporary supporting device for a coal mine, which comprises a bottom plate and a driving unit, wherein a guide plate is vertically and fixedly connected to the bottom plate, an installation box is vertically and slidably connected to the guide plate, a first sliding cavity and a second sliding cavity are formed in the installation box, a transverse hole is transversely formed in the installation box, a moving rod is transversely and slidably connected in the transverse hole, two ends of the moving rod are inclined planes, a driving column and a threaded column are coaxially arranged in the first sliding cavity, the driving column is vertically and slidably matched with the first sliding cavity, one end of the threaded column is rotatably matched with the driving column, the threaded column is in threaded fit with the first sliding cavity, and the bottom end of the driving column is an inclined plane; the intracavity is slided to the second is coaxial to be equipped with catch bar and pole setting, the one end and the coaxial fixed connection of catch bar of pole setting, and the bottom of catch bar is the inclined plane, is equipped with the piece that resets between the top in the chamber that slides of catch bar and second, and the top fixedly connected with of pole setting props up the backplate. The invention can improve the supporting effect on the roadway and avoid the collapse of the roadway.)

1. The utility model provides a colliery temporary support device, includes bottom plate and drive unit, perpendicular fixedly connected with deflector on the bottom plate, vertical sliding connection has the install bin on the deflector, drive unit is used for the vertical reciprocal slip of drive install bin, its characterized in that: the mounting box is vertically provided with a first sliding cavity and a second sliding cavity, a transverse hole is transversely formed in the mounting box, the transverse hole sequentially penetrates through the first sliding cavity and the second sliding cavity and is respectively communicated with the first sliding cavity and the second sliding cavity, a moving rod is transversely connected in the transverse hole in a sliding manner, both ends of the moving rod are inclined planes, both ends of the moving rod form a splayed structure, a driving column and a threaded column are coaxially arranged in the first sliding cavity, the driving column is vertically matched with the first sliding cavity in a sliding manner, one end of the threaded column is matched with the driving column in a rotating manner, the other end of the threaded column extends out of the top end of the first sliding cavity, the threaded column is matched with the first sliding cavity in a threaded manner, the bottom end of the driving column is an inclined plane, and the inclined plane of the driving column is parallel to the inclined plane of the moving rod; the intracavity is slided to the second is coaxial to be equipped with catch bar and pole setting, the one end and the coaxial fixed connection of catch bar of pole setting, the bottom of catch bar is the inclined plane, and the inclined plane of catch bar with another inclined plane of carriage release lever is parallel to each other, be equipped with the piece that resets between the top in the chamber that slides of catch bar and second, the top fixedly connected with of pole setting props up the backplate.

2. A coal mine temporary support device according to claim 1, wherein: the inclined plane of drive post has two, and two inclined plane longitudinal symmetry settings on the drive post, the both ends of cross bore run through in the install bin, horizontal sliding fit has left branch vaulting pole and right branch vaulting pole in the cross bore, left branch vaulting pole and right branch vaulting pole are located the both sides of carriage release lever respectively, the one end that the carriage release lever was kept away from to the left branch vaulting pole stretches out cross bore and fixedly connected with left branch fagging, the one end that the left branch vaulting pole is close to the carriage release lever is the inclined plane, and the inclined plane that carriage release lever one side was kept away from to the inclined plane on the left branch vaulting pole and drive post is parallel to each other, the one end of right branch vaulting pole is located one side of catch bar, and the one end that the catch bar was kept away from to the right branch fa.

3. A coal mine temporary support device according to claim 1, wherein: the piece that resets is the pressure spring, the diameter of pole setting is less than the diameter of pushing rod, the pressure spring is located the second intracavity that slides, and the pressure spring cover is established the pole setting outside, the both ends of pressure spring offset with the roof in pushing rod and second chamber that slides respectively.

4. A coal mine temporary support device according to claim 1, wherein: the driving unit is a hydraulic cylinder, an output shaft of the hydraulic cylinder is fixedly connected with the bottom end of the installation box, and a cylinder body of the hydraulic cylinder is fixedly connected with the bottom plate.

5. A coal mine temporary support device according to claim 1, wherein: the bottom end of the supporting and protecting plate is an arc-shaped surface protruding upwards.

6. A coal mine temporary support device according to claim 1, wherein: the top end of the threaded column is vertically and fixedly connected with a control rod, and the top end of the control rod is vertically and fixedly connected with a control plate.

Technical Field

The invention relates to the technical field of coal mining, in particular to a temporary supporting device for a coal mine.

Background

At present, in the process of underground coal mining, materials are generally conveyed and carried through a coal mine tunnel and personnel enter and exit, so that the safety of the coal mine tunnel is particularly important, the tunnel needs to be supported after the tunnel is excavated, the tunnel is prevented from collapsing, the tunnel is prevented from being blocked, normal material conveying and personnel entering and exiting are not affected, and casualties are avoided.

In order to solve the technical problems, in the prior art, a roadway is usually supported and reinforced by building a supporting structure, but in the prior art, the operation in the process of building the supporting structure is troublesome, and for the roadway needing only temporary supporting, the efficiency of building the supporting structure is low, the service time is short, and the economic cost is high; in addition, the contact between current supporting construction and the tunnel roof is compact enough, leads to the not good support effect to the tunnel top.

Disclosure of Invention

The invention aims to provide a temporary supporting device for a coal mine, which is used for improving the supporting effect on the top wall of a roadway.

In order to achieve the purpose, the invention adopts the following technical scheme: a temporary supporting device for a coal mine comprises a bottom plate and a driving unit, wherein a guide plate is vertically and fixedly connected to the bottom plate, an installation box is vertically and slidably connected to the guide plate, the driving unit is used for driving the installation box to vertically and reciprocally slide, a first sliding cavity and a second sliding cavity are vertically formed in the installation box, a transverse hole is transversely formed in the installation box, sequentially penetrates through the first sliding cavity and the second sliding cavity and is respectively communicated with the first sliding cavity and the second sliding cavity, a moving rod is transversely and slidably connected in the transverse hole, two ends of the moving rod are inclined planes, two ends of the moving rod form a splayed structure, a driving column and a threaded column are coaxially arranged in the first sliding cavity, the driving column is vertically and slidably matched with the first sliding cavity, one end of the threaded column is rotatably matched with the driving column, and the other end of the threaded column extends out of the top end of the first sliding cavity, the threaded column is in threaded fit with the first sliding cavity, the bottom end of the driving column is an inclined plane, and the inclined plane of the driving column is parallel to one inclined plane of the moving rod; the intracavity is slided to the second is coaxial to be equipped with catch bar and pole setting, the one end and the coaxial fixed connection of catch bar of pole setting, the bottom of catch bar is the inclined plane, and the inclined plane of catch bar with another inclined plane of carriage release lever is parallel to each other, be equipped with the piece that resets between the top in the chamber that slides of catch bar and second, the top fixedly connected with of pole setting props up the backplate.

The principle and the advantages of the scheme are as follows: during practical application, upwards slide along the deflector through drive unit drive install bin, thereby make the supporting plate of install bin top support the tunnel roof, avoid the tunnel roof to collapse, then rethread drive screw post rotates, and make the drive post remove downwards, the in-process of drive post remove downwards will promote the carriage release lever lateral sliding, the carriage release lever is gliding simultaneously will make catch bar and pole setting rebound, thereby drive the supporting role of supporting plate rebound and reinforcing to the tunnel roof, through twice drive supporting plate rebound and constantly strengthen the area of contact with the tunnel roof in this scheme, thereby strengthen the contact force between backplate and the tunnel top, and then the supporting role to the tunnel, make the clearance between supporting plate and the tunnel further reduce, thereby the supporting role to the tunnel is stronger.

Because the both ends of carriage release lever are the inclined plane of mutual symmetry in this scheme, and the inclined plane of the bottom of drive post and catch bar is parallel to each other with the inclined plane at carriage release lever both ends respectively, when making the drive post downstream in such setting, the inclined plane of drive post will promote the direction slip of carriage release lever to the catch bar gradually, and the gliding while of carriage release lever, will drive the catch bar rebound under the inclined plane of carriage release lever and the inclined plane of catch bar mutually supported's effect, thereby drive the backup plate rebound, and offset between the inclined plane of when the carriage release lever and the inclined plane of catch bar can also play the spacing effect of support to the catch bar, and then make the backup plate can more steady support the tunnel.

Specially adapted temporary support in this scheme, simple to operate only needs to fix the bottom plate on ground, then reciprocates through drive unit drive case to make the supporting plate support tight tunnel roof or loosen tunnel roof, more convenient like this after temporary support, remove whole strutting arrangement and support to next position.

Preferably, as an improvement, the inclined plane of drive post has two, and two inclined plane longitudinal symmetry on the drive post set up, the both ends of cross bore run through in the install bin, transverse sliding fit has left branch vaulting pole and right branch vaulting pole in the cross bore, left branch vaulting pole and right branch vaulting pole are located the both sides of carriage release lever respectively, the one end that the carriage release lever was kept away from to the left branch vaulting pole stretches out cross bore and fixedly connected with left branch vaulting pole, the one end that the left branch vaulting pole is close to the carriage release lever is the inclined plane, and the inclined plane that carriage release lever one side was kept away from to the inclined plane on the left branch vaulting pole and drive post is parallel to each other, the one end of right branch vaulting pole is located one side of catch bar, and the one end that the catch bar was kept away from to the right branch vaulting.

The inclined plane of drive post has two in this scheme, and still be equipped with left branch vaulting pole and right branch vaulting pole in the cross bore, in such setting, in-process when drive post downstream, two inclined planes of drive post can drive carriage release lever and left branch vaulting pole respectively and remove to two directions, the supporting role of left branch vaulting pole and tunnel lateral wall can be strengthened when the direction of left branch vaulting pole is slided to the direction of keeping away from the carriage release lever, and the carriage release lever moves right and enough drives catch bar downstream and strengthen the supporting role of a backplate and tunnel roof, can also promote the right branch vaulting pole to move right when the carriage release lever moves right simultaneously and strengthen the supporting role of right branch vaulting pole and tunnel right side.

This scheme not only can strengthen the support to the tunnel roof, can also strengthen the support to the tunnel lateral wall, has further improved the security.

Preferably, as an improvement, the piece that resets is the pressure spring, the diameter of pole setting is less than the diameter of pushing rod, the pressure spring is located the second intracavity that slides, and the pressure spring cover is established the pole setting outside, the both ends of pressure spring offset with the roof in pushing rod and second chamber that slides respectively.

The diameter of this scheme neutral bar is less than the diameter of catch bar, and such setting makes things convenient for embolia the pressure spring more to the both ends that make the pressure spring more make things convenient for respectively to support the roof in catch bar and second chamber of sliding.

Preferably, as an improvement, the driving unit is a hydraulic cylinder, an output shaft of the hydraulic cylinder is fixedly connected with the bottom end of the installation box, and a cylinder body of the hydraulic cylinder is fixedly connected with the bottom plate.

Adopt the pneumatic cylinder to drive the vertical slip of install bin in this scheme, its operating condition is more stable, and control is convenient.

Preferably, as an improvement, the bottom end of the supporting and protecting plate is an arc-shaped surface protruding upwards.

So set up, can make the area of contact of a backplate and tunnel roof better to can strengthen the supporting role of a backplate to the tunnel roof.

Preferably, as an improvement, a top end of the threaded column is vertically and fixedly connected with a control rod, and a top end of the control rod is vertically and fixedly connected with a control panel.

So set up, the screw thread post is conveniently rotated in setting up of control lever and control panel in this scheme.

Drawings

Fig. 1 is a longitudinal sectional view of a temporary support device for a coal mine according to a first embodiment of the invention.

Fig. 2 is a longitudinal sectional view of a coal mine temporary support device according to a second embodiment of the invention.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: roadway body 1, bottom plate 2, pneumatic cylinder 3, deflector 4, install bin 5, supporting plate 6, pole setting 7, first chamber 8 that slides, the second chamber 9 that slides, drive post 10, screw post 11, control rod 12, control plate 13, catch bar 14, pressure spring 15, right branch vaulting pole 16, right branch vaulting pole 17, carriage release lever 19, cross bore 20, left branch vaulting pole 21, left branch vaulting pole 22, bar groove 25.

Example one

The embodiment is basically as shown in the attached figure 1: the utility model provides a colliery temporary support device, includes bottom plate 2 and drive unit, perpendicular welded fastening has deflector 4 on the bottom plate 2, and deflector 4 is the rectangular plate structure, and vertical sliding connection has install bin 5 on the deflector 4, and the vertical bar groove 25 of having seted up on the deflector 4 in this embodiment, the rear side (the visual angle of figure 1) welded fastening of install bin 5 have a slider (not shown in the figure), and the slider inserts in the bar groove 25 and with the vertical sliding fit in bar groove 25.

The drive unit is used for driving 5 vertical reciprocating sliding of install bin, and the drive unit is equipped with two in this embodiment, and the drive unit is pneumatic cylinder 3, and bolt fixed connection is passed through with the bottom of install bin 5 to the output shaft of pneumatic cylinder 3, and the cylinder body and the bottom plate 2 of pneumatic cylinder 3 pass through bolt fixed connection.

In this embodiment, the installation box 5 is vertically provided with a first sliding cavity 8 and a second sliding cavity 9, the first sliding cavity 8 and the second sliding cavity 9 are arranged in parallel, the installation box 5 is provided with a transverse hole 20, and the transverse hole 20 sequentially penetrates through the first sliding cavity 8 and the second sliding cavity 9 and is communicated with the first sliding cavity 8 and the second sliding cavity 9 respectively.

Transverse sliding connection has carriage release lever 19 in the cross bore 20, and the both ends of carriage release lever 19 are the inclined plane, and the both ends of carriage release lever 19 form splayed structure, and the first intracavity of sliding is coaxial to be equipped with drive post 10 and screw thread post 11, and drive post 10 and the first 8 vertical sliding fit in chamber that slide, bearing and drive post 10 normal running fit are passed through to the one end of screw thread post 11, and the other end of screw thread post 11 stretches out the top in first chamber 8 that slides, and screw thread post 11 and the first 8 screw-thread fit in chamber that slide. In this embodiment, the top end of the threaded column 11 is vertically welded and fixed with a control rod 12, and the top end of the control rod 12 is vertically welded and fixed with a control plate 13.

The bottom of drive post 10 is the inclined plane, and the inclined plane of drive post 10 is parallel to each other with the inclined plane of carriage release lever 19 left end, the second slides and is equipped with catch bar 14 and pole setting 7 in the chamber 9 coaxially, the one end of pole setting 7 is fixed with catch bar 14 coaxial welding, the bottom of catch bar 14 is the inclined plane, and the inclined plane of catch bar 14 is parallel to each other with the inclined plane of carriage release lever 19 right-hand member, be equipped with the piece that resets between the top of catch bar 14 and the second chamber 9 that slides, the piece that resets is pressure spring 15 in this embodiment, the diameter of pole setting 7 is less than the diameter of catch bar 14, pressure spring 15 is located the second chamber 9 that slides, and pressure spring 15 cover is established in the pole setting 7 outside, the both ends of pressure spring 15 offset with the roof of catch bar.

The top end fixedly connected with of pole setting 7 props up backplate 6, and the bottom of propping up backplate 6 is the bellied arcwall face that makes progress in this embodiment.

The specific implementation process is as follows: during practical application, carry the temporary support device in this embodiment to in needing to support the tunnel main part 1 of strutting to fix bottom plate 2 through instrument such as bolt, earth anchor, then drive pneumatic cylinder 3, make the output shaft of pneumatic cylinder 3 upwards stretch out and drive install bin 5 upwards slide along deflector 4, thereby make the supporting plate 6 of install bin 5 top carry out preliminary support to the tunnel roof, avoid the tunnel roof to collapse.

Initially, the left end and the right end of the moving rod 19 respectively abut against the inclined surface of the bottom end of the driving column 10 and the inclined surface of the bottom end of the pushing rod 14, and the top end of the inclined surface of the pushing rod 14 is located in the transverse hole 20, while the inclined surface of the driving column 10 does not completely enter the transverse hole 20.

Then, the driving column 10 moves downwards by driving the threaded column 11 to rotate, and in the process that the driving column 10 moves downwards, the inclined surface of the driving column 10 gradually pushes the movable rod 19 to slide towards the direction of the push rod 14, and when the movable rod 19 slides, the push rod 14 is pushed to move upwards under the mutual matching action of the inclined surface of the movable rod 19 and the inclined surface of the push rod 14, so as to drive the supporting plate 6 to move upwards, so that the supporting plate 6 supports the roadway body 1 again, the supporting effect of the supporting plate 6 on the top wall of the roadway body 1 is improved, and the inclined surface of the movable rod 19 abuts against the inclined surface of the push rod 14, so that the supporting plate 6 can support the roadway body 1 more stably. The supporting plate 6 is finely adjusted by the upward movement of the push rod 14, so that the supporting plate 6 can be more compactly contacted and pressed on the roadway body 1.

In this embodiment, the contact area between the supporting plate 6 and the top wall of the roadway body 1 is continuously increased by driving the supporting plate 6 to move upwards twice, so that the extrusion force between the supporting plate 6 and the top wall of the roadway body is increased, the supporting effect on the roadway is further increased, the gap between the supporting plate 6 and the roadway is further reduced, and the supporting effect on the roadway is stronger.

Example two

As shown in fig. 2, a temporary support device for coal mine is different from the first embodiment in that: the inclined plane of drive post 10 has two, and two inclined planes on the drive post 10 are vertical symmetry to be set up, and the both ends of cross bore 20 run through in install bin 5, and horizontal sliding fit has left branch vaulting pole 21 and right branch vaulting pole 16 in the cross bore 20, and left branch vaulting pole 21 and right branch vaulting pole 16 are located the both sides of carriage release lever 19 respectively.

The one end that the movable rod 19 was kept away from to left branch vaulting pole 21 stretches out cross bore 20 and welded fastening has left support plate 22, the right-hand member of left branch vaulting pole 21 is the inclined plane, the inclined plane on the left branch vaulting pole 21 is parallel to each other with the inclined plane of drive post 10 left end, the one end of right branch vaulting pole 16 is located the right side of catch bar 14, and the one end that catch bar 14 was kept away from to right support plate 17 stretches out cross bore 20 and welded fastening has right support plate 17, all be equipped with the spring between left support plate 22 and the install bin 5 and between right support plate 17 and the.

In this embodiment, the number of the inclined surfaces of the driving column 10 is two, and a left support rod 21 and a right support rod 16 are further disposed in the transverse hole 20, in such an arrangement, when the driving column 10 moves downward, the two inclined surfaces of the driving column 10 respectively drive the moving rod 19 and the left support rod 21 to move in two directions, when the left support rod 21 slides in a direction away from the moving rod 19, the supporting effect between the left support plate 22 and the left side wall of the roadway body 1 is enhanced, and when the moving rod 19 moves rightward, the pushing rod 14 can be driven to move downward to enhance the supporting effect between the supporting plate 6 and the top wall of the roadway body 1, and when the moving rod 19 moves rightward, the right support rod 16 can be driven to move rightward to enhance the supporting effect between the right support plate 17 and the right side wall of the roadway.

This scheme not only can strengthen the support to 1 roof of tunnel main part, can also strengthen the support to 1 both sides wall of tunnel main part, has further improved the security.

The foregoing is merely an example of the present invention and common general knowledge in the art of designing and/or characterizing particular aspects and/or features is not described in any greater detail herein. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several variations and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.