CN211342981U

CN211342981U - Coal mining tunneling shield structure

Info

Publication number: CN211342981U
Application number: CN202020024842.1U
Authority: CN
Inventors: 柳小军; 白金海; 侯吉; 张晓俊; 白志龙; 李永辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-07
Filing date: 2020-01-07
Publication date: 2020-08-25
Anticipated expiration: 2030-01-07

Abstract

The utility model relates to a coal mining tunnelling shield structure discloses one kind can be to the length regulation of forestope support, and makes the rubble roll the support shield structure that falls to both sides through the arcwall face of a backplate. The falling rocks fall from two sides, and potential safety hazards caused by accumulation are avoided. The bottom frame is of a rectangular frame structure, two sliding grooves are formed in two inner side surfaces of the bottom frame respectively, two sliding shafts are arranged in the bottom frame, two ends of each sliding shaft are arranged in the two sliding grooves in a sliding mode respectively, two fixing shafts are arranged in the bottom frame respectively, two ends of each fixing shaft are fixed on the two inner side surfaces of the bottom frame respectively, the two fixing shafts are close to one end of the bottom frame, the bottom ends of two scissor rods are arranged in the bottom frame, the scissor rods are formed by hinging two connecting rods at the middle part, the two ends of the bottom of each scissor rod are arranged on the two sliding shafts and the two fixing shafts respectively in a rotatable mode, a supporting plate is arranged right above the bottom frame, and grooves are formed in the bottom of the supporting plate.

Description

Coal mining tunneling shield structure

Technical Field

The utility model relates to a coal mining tunnelling shield structure relates to one kind when the coal mining tunnelling, carries out the shield structure of strutting to the roof, belongs to the coal mine equipment field. In particular to a supporting and shielding structure which can adjust the length of a front-exploring supporting plate and enable broken stones to roll down to two sides through the arc-shaped surface of a supporting and shielding plate.

Background

At present, in the colliery is synthesized in the pit and is adopted the in-process, in order to prevent the emergence of working face roof fall accident, need carry out hydraulic support to its roof usually, and to current advance support, it carries out advance support through one end articulated fagging cooperation hydraulic column mostly, fagging structure length is fixed, lead to advance support length can't be adjusted, and often need personnel to climb the height to carry out the stock anchor operation during from the operation, it carries out the operation to need personnel extra transport ladder, it is comparatively inconvenient, current excavation shield structure, it is mostly planar structure to shield the board, when shielding on its plane shield board easy overstock rubble stone, the rockfall, cause the load of shield board to increase, certain potential safety hazard has.

Notice No. CN109538272A discloses a mining tunnelling shield support for coal mine, the on-line screen storage device comprises a base, back timber and crawler attachment, the left side articulates the one end that has first branch on the base, the right side articulates the one end that has the second branch on the base, it is articulated each other in the middle of first branch and the second branch, first branch has a plurality ofly, the second branch has a plurality ofly, the other end of first branch is articulated with the second branch one end of top, the one end of second branch is articulated with the first branch one end of top, it is articulated each other in the middle of the first branch of top and the second branch, this support can't carry out the forestope and shields, its back timber department falls the stone owing to its easy long-pending of planar structure simultaneously, increase its load that receives.

Disclosure of Invention

In order to improve the condition, the utility model relates to a coal mining tunnelling shield structure provides one kind and can strut length to the forestope and adjust, and makes the rubble roll the supporting shield structure that falls to both sides through the arcwall face of a backplate. The falling rocks fall from two sides, and potential safety hazards caused by accumulation are avoided.

The utility model relates to a coal mining tunnelling shield structure is realized like this: the utility model relates to a coal mining tunneling shield structure, which comprises a front probe plate, a sliding groove, a support guard plate, a fixing lug, a bottom frame, a caster, a second fixing shaft, a connecting lug, a hydraulic cylinder, a shearing fork rod, a second sliding shaft, a second sliding groove, a fixing pin, a pin hole, a third sliding groove, a rope ladder, a third sliding shaft and a third fixing shaft, wherein the bottom frame is of a rectangular frame structure, the two inner side surfaces of the bottom frame are respectively provided with the second sliding groove, the second sliding shaft is arranged in the bottom frame, the two ends of the second sliding shaft are respectively arranged in the two second sliding grooves in a sliding way, the second fixing shaft is arranged in the bottom frame, the two ends of the second fixing shaft are respectively fixed on the two inner side surfaces of the bottom frame, the second fixing shaft is close to one end of the bottom frame, the bottom ends of the two shearing fork rods are arranged in the bottom frame, the shearing fork rod is formed by hinging two connecting rods at the middle part, the two ends of the bottom of the shearing fork, the supporting plate is arranged right above the underframe, the bottom of the supporting plate is provided with a groove, the two side groove walls of the groove are internally provided with a third sliding groove, a third sliding shaft is arranged in the groove, the two ends of the third sliding shaft are arranged in two third sliding grooves in a sliding manner, a third fixed shaft is arranged in the groove, the two ends of the third fixed shaft are fixedly connected with the two side groove walls of the groove respectively, the two ends of the top of each shearing fork rod are rotatably arranged on the third sliding shaft and the third fixed shaft respectively, a connecting lug is sleeved on the second fixed shaft and positioned between the two shearing fork rods, the fixed end of a hydraulic cylinder is hinged on a connecting lug, the telescopic end of the hydraulic cylinder is hinged with a support rod, the two ends of the support rod are fixedly connected with the two shearing fork rods respectively, the support rod is close to the top of the shearing fork rods, the top of the supporting plate is provided with a position avoiding groove, the supporting plate is provided with, the sliding groove is positioned at two sides of the avoiding groove respectively, the sliding groove penetrates through one end of the supporting guard plate, the groove walls at two sides of the sliding groove are respectively provided with a limiting groove, the supporting guard plate is provided with two groups of pin holes, the front probe plate is arranged on the supporting guard plate, the length of the front probe plate is smaller than that of the supporting guard plate, the bottom of the front probe plate is provided with two first sliding shafts, the first sliding shafts can be arranged in the sliding groove in a sliding mode, the front probe plate is provided with two groups of pin holes, the pin holes on the front probe plate correspond to the pin holes on the supporting guard plate and are fixedly connected through fixing pins, the two groups of connecting lugs are respectively arranged at the bottom of the front probe plate, one group of connecting lugs is composed of two connecting lugs, the two connecting lugs in one group are close to two ends of the front probe plate respectively, the connecting lugs are positioned in the avoiding groove on the supporting guard plate, and a connecting shaft is arranged between, the rope ladder is wound on the connecting shaft, the idler wheels are arranged at four corners of the bottom frame respectively, the front probe plate is of an arc-shaped plate structure, and the arc-shaped convex surface of the front probe plate faces upwards.

Has the beneficial effects.

Firstly, the falling rocks fall from two sides, and potential safety hazards caused by accumulation are avoided.

And secondly, the length of the forepoling support can be regulated and controlled according to requirements, and the use is convenient.

And thirdly, the device can assist personnel in ascending at the same time of advancing shield.

Fourthly, the structure is simple, the use and the operation are convenient, and the personnel can move and use the device conveniently.

Drawings

FIG. 1 is a three-dimensional structure diagram of a coal mining excavation shield structure of the present invention;

FIG. 2 is a three-dimensional structure view of the bottom frame of the coal mining excavation shield structure of the utility model;

FIG. 3 is a three-dimensional structure diagram of a supporting and protecting plate of a coal mining tunneling and shielding structure of the utility model;

FIG. 4 is a schematic structural view of a supporting plate of a coal mining excavation shield structure of the present invention;

fig. 5 is a schematic structural view of the coal mining excavation shield structure in use.

In the attached drawings

Wherein the method comprises the following steps: the device comprises a front probe plate 1, a first sliding groove 2, a supporting plate 3, a fixing lug 4, an underframe 5, a caster 6, a second fixing shaft 7, a connecting lug 8, a hydraulic cylinder 9, a scissor rod 10, a second sliding shaft 11, a second sliding groove 12, a fixing pin 13, a pin hole 14, a third sliding groove 15, a rope ladder 16, a third sliding shaft 17 and a third fixing shaft 18.

The specific implementation mode is as follows:

the utility model relates to a coal mining tunneling shield structure which is realized by a forepoling plate 1, a sliding groove 2, a support plate 3, a fixed lug 4, a chassis 5, a caster 6, a second fixed shaft 7, a connecting lug 8, a hydraulic cylinder 9, a scissor rod 10, a second sliding shaft 11, a second sliding groove 12, a fixed pin 13, a pin hole 14, a third sliding groove 15, a rope ladder 16, a third sliding shaft 17 and a third fixed shaft 18, wherein the chassis 5 is a rectangular frame structure, the two inner side surfaces of the chassis 5 are respectively provided with the second sliding groove 12, the second sliding shaft 11 is arranged in the chassis 5, the two ends of the second sliding shaft 11 are respectively arranged in the two second sliding grooves 12 in a sliding way, the second fixed shaft 7 is arranged in the chassis 5, the two ends of the second fixed shaft 7 are respectively fixed on the two inner side surfaces of the chassis 5, the second fixed shaft 7 is close to one end of the chassis 5, the bottom ends of the two scissor rods 10 are arranged in the chassis 5, the shear fork rod 10 is formed by hinging two connecting rods at the middle part, two ends of the bottom of the shear fork rod 10 are respectively rotatably arranged on a second sliding shaft 11 and a second fixing shaft 7, the supporting plate 3 is arranged right above the chassis 5, the bottom of the supporting plate 3 is provided with a groove, two side groove walls of the groove are respectively provided with a third sliding groove 15, a third sliding shaft 17 is arranged in the groove, two ends of the third sliding shaft 17 are slidably arranged in the two third sliding grooves 15, a third fixing shaft 18 is arranged in the groove, two ends of the third fixing shaft 18 are respectively fixedly connected with the groove wall at two sides of the groove, two ends of the top of the shear fork rod 10 are respectively rotatably arranged on the third sliding shaft 17 and the third fixing shaft 18, a connecting lug 8 is sleeved on the second fixing shaft and positioned between the two shear fork rods 10, a fixed end of a hydraulic cylinder 9 is hinged on the connecting lug 8, and a support rod is hinged on a telescopic end of the hydraulic cylinder 9, the two ends of the supporting rod are respectively fixedly connected with the two scissor rods 10, the supporting rod is close to the tops of the scissor rods 10, the top of the supporting and protecting plate 3 is provided with a clearance groove, the supporting and protecting plate 3 is provided with two first sliding grooves 2 which are respectively positioned at the two sides of the clearance groove, the first sliding groove 2 penetrates through one end of the supporting and protecting plate 3, the two side groove walls of the first sliding groove 2 are respectively provided with a limiting groove, the supporting and protecting plate 3 is provided with two groups of pin holes 14, the front probe plate 1 is arranged on the supporting and protecting plate 3, the length of the front probe plate 1 is smaller than that of the supporting and protecting plate 3, the bottom of the front probe plate 1 is provided with two first sliding shafts which are slidably arranged in the first sliding groove 2, the front probe plate 1 is provided with two groups of pin holes 14, the pin holes 14 on the front probe plate 1 correspond to the pin holes 14 on the supporting and are fixedly connected through fixing pins 13, and two groups of connecting lugs 8 are respectively arranged at the bottom of the front probe plate 1, the group of the connecting lugs 8 consists of two connecting lugs 8, the two connecting lugs 8 in the group are respectively close to two ends of the front detecting plate 1, the connecting lugs 8 are positioned in the avoiding grooves on the supporting plate 3, a connecting shaft is arranged between the two connecting lugs 8 in the group, a rope ladder 16 is wound on the connecting shaft, rollers are respectively arranged at four corners of the underframe 5, the front detecting plate 1 is of an arc-shaped plate structure, and the arc-shaped convex surface of the front detecting plate 1 is upward;

when the device is used, in an initial state, the second sliding shaft 11 is located at the position, close to the other end of the underframe 5, of the second sliding groove 12, the third sliding shaft 17 is correspondingly located at the position, close to the other end of the underframe 5, of the third sliding groove, the front probe plate 1 is completely arranged on the support plate 3 and is fixed through the fixing pin 13, the height of the device is the lowest at the moment, a person moves the device to a position needing front probe shielding, the fixing pin 13 is taken down, the person pulls the front probe plate 1 to enable the first sliding shaft to slide along the first sliding groove 2 to extend the front probe plate 1, then the fixing pin 13 is inserted into the pin holes 14 corresponding to the two sides to be fixed, further the length of the front probe plate 1 extending out of the support plate 3 is adjusted, the front probe support area is adjusted, then the person starts the hydraulic cylinder 9, the hydraulic rod lifts the supporting rod upwards to enable the shearing rod 10 to move upwards, and the second sliding shaft 11 and the third sliding shaft, furthermore, the supporting and protecting plate 3 and the front probe plate 1 support the top surface of the roadway and shield the excavation surface of the roadway, when a person works, the supporting and protecting plate 3 is matched with the front probe plate 1 to block falling gravels, the falling gravels are guided to slide to two sides by the arc surface of the front probe plate 1, the increase of load of the supporting and protecting plate caused by accumulation is avoided, the safety coefficient is high, meanwhile, the person can put down the rope ladder 16 wound on the connecting shaft at the position of the fixing lug 4, the person can climb the roadway without additionally erecting a telescopic ladder, and the use and the operation are convenient;

the inner walls of the two sides of the first sliding groove 2 are respectively provided with a limiting groove, and the first sliding groove can be matched with the first sliding shaft, so that the first sliding shaft is prevented from deflecting, and the pushing is stable;

the length of the front sounding board 1 is smaller than that of the supporting and protecting board 3, so that the front sounding board 1 can be conveniently stored;

reach and to advance to strut length and adjust, and make the rubble roll the purpose that falls to both sides through the arcwall face of propping backplate 3.

The above embodiments are the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Any person skilled in the art can make some modifications without departing from the scope of the invention, i.e. all equivalent modifications made according to the invention are intended to be covered by the scope of the 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. A coal mining tunneling shield structure is characterized in that: the anti-theft device is characterized by comprising a front probe plate, a first sliding groove, a supporting and protecting plate, fixing lugs, a chassis, trundles, a second fixing shaft, connecting lugs, a hydraulic cylinder, a scissor rod, a second sliding shaft, a second sliding groove, a fixing pin, a pin hole, a third sliding groove, a rope ladder, a third sliding shaft and a third fixing shaft, wherein the chassis is of a rectangular frame structure, the second sliding groove is formed in two inner side surfaces of the chassis respectively, the second sliding shaft is arranged in the chassis, two ends of the second sliding shaft are arranged in the two second sliding grooves in a sliding mode respectively, the second fixing shaft is arranged in the chassis, two ends of the second fixing shaft are fixedly arranged on the two inner side surfaces of the chassis respectively, the second fixing shaft is close to one end of the chassis, the bottom ends of the two scissor rods are arranged in the chassis, two ends of the bottom of the scissor rods are arranged on the second sliding shaft and the second fixing shaft respectively in a rotatable mode, a, the bottom of the supporting plate is provided with a groove, the two side groove walls of the groove are internally provided with a third sliding groove, a third sliding shaft is arranged in the groove, the two ends of the third sliding shaft are arranged in two third sliding grooves in a sliding manner, a third fixed shaft is arranged in the groove, the two ends of the third fixed shaft are fixedly connected with the two side groove walls of the groove respectively, the two ends of the top of each shearing fork rod are rotatably arranged on the third sliding shaft and the third fixed shaft respectively, a connecting lug is sleeved on the second fixed shaft and positioned between the two shearing fork rods, the fixed end of a hydraulic cylinder is hinged on a connecting lug, the telescopic end of the hydraulic cylinder is hinged with a support rod, the two ends of the support rod are fixedly connected with the two shearing fork rods respectively, the support rod is close to the top of the shearing fork rods, the top of the supporting plate is provided with a spacing groove, the supporting plate is provided with two first sliding grooves and is positioned on the two sides of, a sliding tray runs through the one end of a backplate, it has two sets of pinholes to prop up to open on the backplate, and the forestope is arranged in on the backplate, two slide shafts have been put to the forestope bottom, slide shaft slidable arranges a sliding tray in, it has two sets of pinholes to open on the forestope, pinhole on the forestope and the pinhole on the supporting plate are corresponding, and connect fixedly through the fixed pin, the forestope is arc platelike structure, the arc convex surface of forestope is up.

2. A coal mining excavation shield structure according to claim 1, wherein two sets of the engaging lugs are respectively disposed at the bottom of the front probe plate, one set of the engaging lugs is composed of two engaging lugs, two engaging lugs in one set are respectively close to two ends of the front probe plate, the engaging lugs are disposed in the clearance grooves on the support plate, a connecting shaft is disposed between two engaging lugs in one set, and the rope ladder is wound around the connecting shaft.

3. A coal mining excavation shield according to claim 2, wherein the length of the foreplate is less than the length of the backup plate.

4. A coal mining excavation shield arrangement according to claim 1, wherein the shear fork is formed by two connecting rods hinged at the middle.

5. The coal mining tunneling shield structure according to claim 1, wherein the first sliding groove is provided with a limiting groove on each of the two side groove walls.

6. A coal mining excavation and shielding structure according to claim 1, wherein rollers are provided at four corners of the base frame.