CN210564611U

CN210564611U - Temporary supporting structure for coal mine excavation

Info

Publication number: CN210564611U
Application number: CN201921730345.7U
Authority: CN
Inventors: 王生俊; 李钢; 赵志勇; 杨文忠; 闫谈便; 马宁
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-16
Filing date: 2019-10-16
Publication date: 2020-05-19
Anticipated expiration: 2029-10-16

Abstract

The utility model discloses temporary support structure is excavated in colliery discloses one kind and carries out temporary support through mobilizable support frame, and promotes through the pneumatic cylinder and make articulated supporting plate carry out the angle change in order to adapt to tunnel roof shape, increases the temporary support structure who supports lifting surface area. The device conveniently removes the operation, reduces personnel's work load, improves the operation effect. The fixing frame is characterized in that the fixing frame is of an arched plate-shaped structure, supporting frames are fixedly arranged on the outer side face of the fixing frame, the supporting frames on the fixing frame are connected and two parallel through a plurality of connecting rods, a plurality of connecting sleeves are arranged on the inner side face of the fixing frame, the two connecting sleeves on the two fixing frames correspond to one another, trundles are arranged at two ends of the fixing frame respectively, sliding shafts sequentially penetrate through the two corresponding connecting sleeves on the two fixing frames, a limiting block is arranged at one end of each sliding shaft, the two vertical supports are fixedly arranged on the sliding shafts, and the two vertical supports are parallel.

Description

Temporary supporting structure for coal mine excavation

Technical Field

The utility model discloses coal mine excavation temporary support structure relates to when the tunnelling, carries out the supporting construction of interim support to the tunnel roof, belongs to the coal mine equipment field. In particular to a temporary supporting structure which carries out temporary supporting through a movable supporting frame and leads a hinged supporting plate to carry out angle change through pushing of a hydraulic cylinder so as to adapt to the shape of a roadway top plate and increase the supporting stress area.

Background

The temporary support is a temporary support mode which is used for preventing rocks from falling off during underground operation and taking measures to support a top plate so that construction can be continued, a traditional temporary support device for a roadway needs to continuously increase a stand column in front for temporary support when being matched with roadway excavation for extension, the stand column is inconvenient to move, complicated in installation operation, large in workload of personnel and low in efficiency, the existing movable temporary support device for excavation mostly adopts a fixed structure and a support plate forming a shape during support, and for a temporary excavation area with an irregular roadway section, the temporary support mode can cause uneven stress points on the roadway top and even the phenomenon of empty support below the roadway top.

The notice number CN208669341U discloses a temporary supporting device for roadway excavation, which comprises a first supporting plate and a second supporting plate, wherein the opposite ends of the first supporting plate and the second supporting plate are hinged together to form a supporting plate group, supporting studs are fixedly arranged at four corners of the lower end of the first supporting plate respectively, the four supporting studs vertically extend downwards, the lower ends of the four supporting studs are embedded into the upper end of a base body pipe from top to bottom, limiting nuts are embedded and connected onto the supporting studs in a threaded manner, the lower end faces of the limiting nuts are tightly abutted to the upper end faces of the base body pipe, and the lower end of the base body pipe is provided with universal wheels through bolt connection; the supporting plate groups are hinged together, the first supporting plate of one supporting plate group in two adjacent supporting plate groups is hinged with the second supporting plate of the other supporting plate group relatively, so that the second supporting plate is arranged between the two first supporting plates in the two adjacent supporting plate groups at intervals, the supporting plate structure of the supporting device is fixed, and the irregular roadway section cannot be effectively supported during temporary supporting.

The notice number CN105350991A discloses a roadway driving temporary support device and a construction method thereof, wherein the roadway driving temporary support device comprises a U-shaped support shed, a track traveling system, a power system and a net hanging system; the U-shaped supporting shed comprises a front U-shaped steel pipe, a middle U-shaped square steel and a rear U-shaped steel pipe, wherein the front U-shaped steel pipe, the middle U-shaped square steel and the rear U-shaped steel pipe are parallel to each other and are connected by a connecting beam to form a U-shaped shed-shaped support; the front end U-shaped supporting shed structure of the supporting device is fixed and cannot change according to the requirement of the temporary supporting roadway section.

Disclosure of Invention

In order to improve the condition, the utility model discloses colliery is excavated interim supporting construction provides one kind and carries out interim support through mobilizable support frame, and promotes through the pneumatic cylinder and make articulated supporting plate carry out the angle change in order to adapt to the tunnel roof shape, increases the interim supporting construction who supports lifting surface area. The device conveniently removes the operation, reduces personnel's work load, improves the operation effect.

The utility model discloses temporary support structure is excavated in colliery is realized like this: the utility model discloses a temporary support structure for coal mining consists of a fixed support device and a movable support device, the fixed support device consists of a support frame, a connecting rod, a fixed frame and trundles, the fixed frame is an arched plate-shaped structure, the support frame is fixedly arranged on the outer side surface of the fixed frame, the two support frames on the fixed frame are connected through a plurality of connecting rods, the two fixed frames are parallel to each other, a plurality of connecting sleeves are arranged on the inner side surface of the fixed frame, the connecting sleeves on the two fixed frames are in one-to-one correspondence, the trundles are respectively arranged at the two ends of the fixed frame, the movable support device consists of a support plate, a hydraulic cylinder, a fixed sleeve, a vertical support, a through hole, a sliding shaft, a support frame, a limiting block, a sliding chute and a connecting shaft, the sliding shaft sequentially passes through the two, the two vertical supports are parallel, the vertical supports are of an arched plate-shaped structure, a plurality of fixing sleeves are arranged on the inner side surfaces of the vertical supports, the fixing sleeves are arranged on the sliding shafts in a one-to-one correspondence mode, the shape and the size of each vertical support are identical to those of the fixing frames, truckles are arranged at two ends of each vertical support respectively, a plurality of through holes are formed in the vertical parts of the vertical supports, a plurality of support guard plates are combined to form arc-shaped support plates and are arranged above the vertical supports, the arc-shaped support plates are distributed along the arc-shaped surfaces of the vertical supports, a sliding groove is formed in one end of each support guard plate, a connecting shaft is arranged at the other end of each support guard plate, the connecting shafts are slidably sleeved in the sliding grooves of the adjacent support plates, a hydraulic cylinder is arranged between each support guard plate and the vertical supports, the fixed end of the hydraulic cylinder is, and steel bars are embedded in the supporting and protecting plates.

Furthermore, the two side edges of the arc-shaped supporting plates are respectively provided with a lifting hook, the lifting hooks on the opposite surfaces of the two groups of arc-shaped supporting plates are in one-to-one correspondence, the elastic protection ribs are arranged between the two groups of arc-shaped supporting plates, and the two ends of each elastic protection rib are respectively hung and buckled on the two corresponding lifting hooks on the two groups of arc-shaped supporting plates.

Has the beneficial effects.

The supporting stress area of the irregular temporary excavation roadway surface area can be increased, a good supporting and supporting effect is achieved on the temporary supporting area, and the operation risk of operators is reduced.

And secondly, the device is convenient to move, the workload of workers is reduced, and the operation effect is improved.

Thirdly, the use and the operation are simple and convenient.

Drawings

Fig. 1 the utility model discloses the three-dimensional structure chart of temporary support structure is excavated in the colliery.

Fig. 2 the utility model discloses temporary support structure's schematic structure is excavated in colliery.

Fig. 3 the utility model discloses the three-dimensional structure chart of temporary support structure backplate is excavated in the colliery.

Fig. 4 is a three-dimensional structure diagram of the temporary supporting structure in coal mining of the utility model embodiment 2.

In the attached drawings

Wherein the method comprises the following steps: the device comprises a support frame 1, a connecting rod 2, a fixing frame 3, a supporting plate 4, a hydraulic cylinder 5, a fixing sleeve 6, a vertical support 7, a caster 8, a through hole 9, a sliding shaft 10, a supporting frame 11, a limiting block 12, a sliding groove 13, a connecting shaft 14, a lifting hook 15 and a protective rib 16.

The specific implementation mode is as follows:

example 1:

the utility model discloses temporary support structure is excavated in colliery is realized like this, by fixed support device and portable strutting arrangement, fixed support device comprises support frame 1, connecting rod 2, mount 3 and truckle 8, mount 3 is arch platelike structure, fixed support frame 1 that has put on the lateral surface of mount 3, two support frames 1 on mount 3 are connected through many connecting rods 2, two mount 3 are parallel to each other, the medial surface of mount 3 is put a plurality of adapter sleeves, and the adapter sleeves on two mounts 3 correspond one-to-one, the truckle 8 is put respectively at the both ends of mount 3, portable strutting arrangement comprises supporting plate 4, pneumatic cylinder 5, fixed cover 6, vertical support 7, through-hole 9, slide shaft 10, support 11, stopper 12, spout 13 and connecting axle 14, slide shaft 10 passes two corresponding adapter sleeves on two mounts 3 in proper order, a limiting block 12 is arranged at one end of the sliding shaft 10, two vertical supports 7 are fixedly arranged on the sliding shaft 10 and are parallel to each other, the vertical supports 7 are of an arched plate-shaped structure, a plurality of fixing sleeves 6 are arranged on the inner side surfaces of the vertical supports 7 and are arranged on the sliding shaft 10 in a one-to-one correspondence mode, the vertical supports 7 are identical to the fixing frames 3 in shape and size, casters 8 are respectively arranged at two ends of the vertical supports 7, a plurality of through holes 9 are formed in the vertical portions of the vertical supports 7, a plurality of support plates 4 are combined to form arc-shaped support plates and are arranged above the vertical supports 7, the arc-shaped support plates are distributed along the arc-shaped surfaces of the vertical supports 7, a sliding groove 13 is formed at one end of each support plate 4, a connecting shaft 14 is arranged at the other end of each support plate 4, the connecting shaft 14 is slidably sleeved in the sliding groove 13 on the adjacent support plate 4, and a hydraulic cylinder 5 is, the stiff end of pneumatic cylinder 5 with erect support 7 and be connected, the flexible end of pneumatic cylinder 5 is connected with supporting plate 4, the wearing pad has been put on the surface of supporting plate 4, the inside billet of having inlayed of supporting plate 4.

When the temporary supporting structure is used, the position of the temporary supporting structure is moved through the trundles 8, when the temporary supporting structure is close to a region needing temporary supporting, the fixed frame 3 and the supporting frame 1 are fixed in a permanent supporting roadway, then a person can push the sliding shaft 10 to enable the two supporting frames 11 fixed on the sliding shaft 10 to move towards the front end of the roadway, the sliding shaft 10 moves along the connecting sleeve on the fixed frame 3 and drives the supporting frames 11 to move to the temporary supporting region, so that the supporting plate 4 moves to the temporary supporting region, then the supporting plates 4 hinged with each other can be matched with the shape of the roadway roof of the temporary supporting region for supporting by starting the hydraulic cylinder 5, the piston rod on the hydraulic cylinder 5 extends or retracts to drive the supporting plate 4 to move, the connecting shaft 14 on the supporting plate 4 correspondingly slides in the corresponding sliding chute 13, so that the supporting plate 4 can conform to the shape of the, therefore, the supporting stress area of the irregular area is increased, and a good supporting effect is achieved on the temporary supporting area.

The through hole 9 on the vertical support 7 is used for being matched with an anchor rod to effectively fix the support frame 11, and the support frame 11 is prevented from shaking during temporary support.

Example 2:

the difference between this example and example 1 is: the two sides of the arc-shaped support plates are respectively provided with a lifting hook 15, the lifting hooks 15 on the opposite surfaces of the two groups of arc-shaped support plates are in one-to-one correspondence, a plurality of elastic protection ribs 16 are arranged between the two groups of arc-shaped support plates, and the two ends of the elastic protection ribs 16 are respectively hung and buckled on the two corresponding lifting hooks 15 on the two groups of arc-shaped support plates; when the protective device is used, the elastic protective ribs 16 protect a blank area between the two groups of arc-shaped support plates, and the risk degree of stripping of the top layer is reduced.

The surface of the supporting and protecting plate 4 is provided with a wear-resistant pad, so that the friction force between the supporting and protecting plate and the roadway top plate is improved, and the supporting stability is improved.

The design that the steel bars are embedded in the supporting plate 4 can strengthen the strength of the supporting plate 4 and improve the supporting strength.

The purposes of temporary supporting through the movable supporting frame 11, changing the angle of the hinged supporting plate 4 by pushing through the hydraulic cylinder 5 to adapt to the shape of the roadway top plate and increasing the supporting stress area are achieved.

The above embodiments are preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and any person skilled in the art can make some modifications without departing from the scope of the present invention, i.e. all equivalent modifications made by the present invention should be covered by the scope of the present invention.

It should also be noted that, unless otherwise specifically stated or limited, the terms "disposed on," "mounted on," "connected to" and "connected to" are to be construed broadly and may include, for example, a fixed connection such as a crimped connection, a riveted connection, a pinned connection, an adhesive connection, a welded connection, a removable connection such as a threaded connection, a snap connection, a hinged connection, an integral connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Claims

1. The utility model provides a temporary support structure is excavated in colliery, characterized by: the movable support device comprises a supporting plate, a hydraulic cylinder, a fixing sleeve, vertical supports, through holes, a sliding shaft, a supporting frame, a limiting block, a sliding chute and a connecting shaft, wherein the sliding shaft sequentially penetrates through the two corresponding connecting sleeves on the two fixing frames, one end of the sliding shaft is provided with the limiting block, the two vertical supports are fixedly arranged on the sliding shaft, and the two vertical supports are parallel, the vertical support is of an arched plate-shaped structure, a plurality of fixing sleeves are arranged on the inner side face of the vertical support, the fixing sleeves in one-to-one correspondence are arranged on a sliding shaft, trundles are respectively arranged at two ends of the vertical support, a plurality of through holes are formed in the vertical portion of the vertical support, a plurality of support plates are combined to form an arc-shaped support plate, the arc-shaped support plate is arranged above the vertical support, the arc-shaped support plate is distributed along the arc-shaped face of the vertical support, a sliding groove is formed in one end of each support plate, a connecting shaft is arranged at the other end of each support plate, the connecting shaft can slide and is sleeved in the sliding groove of the adjacent support plate, a hydraulic cylinder is arranged between each support plate and the vertical support, the fixed end of the.

2. The temporary support structure for coal mining according to claim 1, wherein hooks are respectively disposed on two side edges of the arc-shaped support plates, hooks on opposite surfaces of the two groups of arc-shaped support plates are in one-to-one correspondence, a plurality of elastic protection ribs are disposed between the two groups of arc-shaped support plates, and two ends of each elastic protection rib are respectively hung and buckled on the two corresponding hooks on the two groups of arc-shaped support plates.

3. The temporary support structure for coal mine excavation according to claim 1, wherein a wear pad is disposed on a surface of the support plate.

4. A temporary support structure for coal mine excavation according to claim 1 or 3, wherein steel bars are embedded inside the support shield plates.

5. A coal mine mining temporary support structure according to claim 1, wherein the vertical supports are the same in shape and size as the fixed frames.