CN213039306U

CN213039306U - Automatic-installation double-support supporting device for coal mine excavation

Info

Publication number: CN213039306U
Application number: CN202022212994.7U
Authority: CN
Inventors: 赵奇; 牛志明
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-07
Filing date: 2020-10-07
Publication date: 2021-04-23
Anticipated expiration: 2030-10-07

Abstract

The utility model provides an automatic mounting double-support supporting device for coal mine excavation, which comprises a mounting frame, a first supporting component and a second supporting component, wherein the mounting frame comprises a bottom plate, a top plate and a side plate, the middle position of the top plate is provided with an opening, the first supporting mechanism comprises a supporting cylinder which is opened to form sliding guide fit, a vertical hydraulic cylinder for connecting the lower end surface of a boss and the upper end surface of the top plate is arranged between the lower end surface of the boss and the upper end surface of the top plate, the second supporting mechanism comprises a supporting block which is arranged in the supporting cylinder and is matched with the supporting cylinder, the supporting block and the supporting cylinder form sliding guide fit, the upper end surface of the bottom plate is provided with a chute, a sliding block which is matched with the chute is arranged in the chute, the sliding block is provided with two supporting rods which are arranged symmetrically left and right, the supporting cylinder is driven to move upwards by the hydraulic cylinder, and is supported and protected by the supporting cylinder and the supporting block at the same time, so that the safety performance is high.

Description

Automatic-installation double-support supporting device for coal mine excavation

Technical Field

The utility model relates to a coal mining technical field, concretely relates to coal mine excavates with double bracing supporting device of automatic installation.

Background

The coal mine is a reasonable space excavated by human beings when excavating geological layers rich in coal, generally comprises a roadway, a well cave and an excavation surface, wherein the coal is the most main solid fuel and is one of combustible organic rocks, the coal mine is very important to be supported in the excavation and exploitation process of the coal mine, in the prior art, the stability in coal mining is ensured by adopting simple hydraulic support, although the roof rock layer can be effectively supported to a certain degree, the stability is poor, and the hydraulic system is easy to have the phenomenon of failure, so that a double-support protection mechanism is necessary for ensuring the inexhaustible underground operation, and therefore, the double-support supporting device for the automatic installation for coal mine excavation, which has the advantages of ingenious structure, simple principle, convenience in use and higher safety, is necessary to be designed.

SUMMERY OF THE UTILITY MODEL

For solving prior art's not enough, the utility model aims at providing a structure is ingenious, the principle is simple, use convenient, the higher colliery of security excavates with automatic installation's dual bracing supporting device, aims at solving the technical problem that the simple utilization hydraulic pressure supports the protection security performance difference among the prior art.

In order to achieve the technical purpose, the utility model adopts the following technical scheme.

An automatic-installation double-support supporting device for coal mine excavation comprises an installation frame, a first supporting member and a second supporting member, wherein the installation frame comprises a bottom plate, a top plate and side plates for connecting the bottom plate and the top plate, the bottom plate, the top plate and the side plates form a rectangular closed structure, an opening is formed in the middle of the top plate, the first supporting mechanism comprises a supporting cylinder which penetrates through the rectangle from top to bottom, the supporting cylinder and the opening form sliding guide fit, a boss which extends outwards and horizontally is arranged at the top of the supporting cylinder, a vertical hydraulic cylinder for connecting the lower end face of the boss and the upper end face of the top plate is arranged between the lower end face of the boss and the upper end face of the top plate, the hydraulic cylinder is provided with four supporting blocks which are respectively positioned at four corner positions of the supporting cylinder, the second supporting mechanism comprises a supporting block which is arranged in the supporting cylinder and matched with the supporting cylinder, the horizontal spout about the bottom plate up end is seted up, be provided with the slider rather than the adaptation in the spout, the slider is provided with two and bilateral symmetry arranges, be provided with the branch that is used for connecting both between slider and the supporting shoe, branch one end is connected with the slider is articulated and the length direction of articulated shaft axial perpendicular to spout that this articulated junction constitutes, the length direction of articulated shaft axial perpendicular to spout that the other end is connected with the supporting shoe is articulated and should articulated junction constitutes, slide through driving two sliders and be close to each other, make the supporting shoe upward movement, keep away from the slip each other through driving two sliders, make the supporting shoe downstream.

As a further optimization or improvement of the present solution.

The middle position of the sliding groove along the length direction is fixedly provided with a double-end motor, one output shaft of the double-end motor is coaxially and fixedly provided with a first screw rod and the other output shaft of the double-end motor is coaxially and fixedly provided with a second screw rod, the screw pitch of the first screw rod is equal to that of the second screw rod, the spiral direction of the first screw rod is opposite to that of the second screw rod, one sliding block is sleeved on the first screw rod and forms threaded connection matching with the first screw rod, and the other sliding block is sleeved on the second.

As a further optimization or improvement of the present solution.

And the lower end surface of the bottom plate is provided with high-strength universal wheels close to the four corner parts.

As a further optimization or improvement of the present solution.

The upper end surface of the boss is embedded with a first pressure sensor which protrudes outwards, the upper end surface of the supporting block is embedded with a second pressure sensor which protrudes outwards, and a display used for displaying the pressure of the first pressure sensor and the pressure of the second pressure sensor is further arranged on the mounting frame.

Compared with the prior art, the utility model beneficial effect lie in:

1. the structure is ingenious, the principle is simple, the use is convenient and fast, the supporting cylinder and the supporting block are adopted for simultaneous supporting, double supporting is realized, and the safety performance is higher;

2. the supporting cylinder is driven to lift by a hydraulic cylinder, the supporting block is driven to lift by a screw rod, different driving forms are adopted, the probability of simultaneous failure is greatly reduced, and the safety performance is further improved;

3. carry out pressure detection and carry out the reading by the display by pressure sensor and show, can adjust the holding power that makes a supporting cylinder and supporting shoe provide unanimously to when breaking down, the holding power that a supporting cylinder or supporting shoe provided will reduce to near zero, is convenient for to the judgement of trouble, is favorable to operation personnel's maintenance, further promotes the security.

Drawings

In order to illustrate the embodiments of the present invention more clearly, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious to those skilled in the art that other drawings can be obtained based on these drawings without inventive work.

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of the mounting bracket;

FIG. 3 is a matching view of the support cylinder, the support block and the mounting frame;

FIG. 4 is a view of the support cylinder in cooperation with a hydraulic cylinder;

fig. 5 is a matching view of the supporting block and the screw rod.

Fig. 6 is a schematic structural diagram of the first pressure sensor, the second pressure sensor and the display.

Labeled as:

10. a mounting frame; 11. a base plate; 12. a top plate; 13. a side plate; 14. a universal wheel; 15. opening the mouth; 16. a chute;

20. a first support member; 21. a support cylinder; 22. a boss; 23. a hydraulic cylinder;

30. a second support member; 31. a support block; 32. a slider; 33. a strut; 34. a double-headed motor; 35. a first screw rod; 36. a second screw rod;

40a, a first pressure sensor; 40b, a second pressure sensor; 41. a display.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, the ordinary skilled in the art can obtain all other embodiments without creative work, which all belong to the protection scope of the present invention.

Referring to fig. 1 to 6, an automatic installation double-support supporting device for coal mining comprises an installation frame 10, a first support member 20 and a second support member 30, wherein the installation frame 10 comprises a bottom plate 11, a top plate 12 and a side plate 13 connecting the bottom plate 11 and the top plate 12, the bottom plate 11, the top plate 12 and the side plate 13 form a rectangular closed structure, an opening 15 is formed in the middle of the top plate 12, the first support member 20 comprises a rectangular support cylinder 21 penetrating up and down, the support cylinder 21 and the opening 15 form a sliding guide fit, a boss 22 extending horizontally outwards is arranged at the top of the support cylinder 21, a vertical hydraulic cylinder 23 connecting the lower end surface of the boss 22 and the upper end surface of the top plate 12 is arranged between the lower end surface of the boss 22 and the upper end surface of the top plate 12, the hydraulic cylinder 23 is provided with four support blocks 31 respectively located at four corner positions of the support cylinder 21, the second support member 30 comprises support blocks 31 arranged, the supporting block 31 and the supporting cylinder 21 form sliding guide fit, the tops of the supporting block 31 and the supporting cylinder are flush in the initial state, in order to drive the supporting block 31 to slide up and down, the upper end surface of the bottom plate 11 is provided with a left-right horizontal sliding groove 16, a sliding block 32 matched with the sliding groove 16 is arranged in the sliding groove 16, the sliding block 32 is provided with two supporting rods 33 which are arranged symmetrically left and right, the sliding block 32 and the supporting block 31 are connected by a supporting rod 33, one end of the supporting rod 33 is hinged with the sliding block 32, the axial direction of a hinge shaft formed at the hinged connection is vertical to the length direction of the sliding groove 16, the axial direction of a hinge shaft formed at the other end of the hinge connection with the supporting block 31 is vertical to the length direction of the sliding groove 16, the supporting block 31 is moved up by driving the two sliding, the support cylinder 21 and the support block 31 simultaneously support the top of the rock layer of the roadway.

Specifically, in order to drive the sliding blocks 32 to slide close to or away from each other, the middle position of the sliding chute 16 along the length direction is fixedly provided with a double-end motor 34, one output shaft of the double-end motor 34 is coaxially and fixedly provided with a first screw rod 35, the other output shaft of the double-end motor 34 is coaxially and fixedly provided with a second screw rod 36, the screw pitches of the first screw rod 35 and the second screw rod 36 are equal, and the spiral directions are opposite, one sliding block 16 is sleeved on the first screw rod 35 and forms threaded connection matching with the first screw rod, the other sliding block 16 is sleeved on the second screw rod 36 and forms threaded connection matching with the second screw rod, and the driving of the sliding block 16 is realized through the driving of the double-end motor.

The supporting principle is that the supporting block 31 is flush with the top of the supporting cylinder 21 in an initial state, when double support is needed for the top of the rock stratum of the roadway, the hydraulic cylinder 23 is started, the hydraulic cylinder 23 drives the supporting cylinder 21 to slide upwards along the opening 15 until the supporting cylinder 21 is in contact support with the top of the rock stratum of the roadway, then the double-end motor 34 is started, the double-end motor 34 drives the first screw rod 35 and the second screw rod 36 to rotate synchronously, the two sliding blocks 32 move synchronously and mutually close to each other along the sliding groove 16, the supporting block 31 slides upwards along the supporting cylinder 21 until the supporting block 31 is in contact support with the top of the rock stratum of the roadway, and the supporting block 31 and the supporting cylinder 21 are used for simultaneous supporting and protection; the supporting cylinder is driven by the hydraulic cylinder to lift, the supporting block is driven by the screw rod to lift, different driving forms are adopted, the probability of simultaneous failure is greatly reduced, and the safety performance is further improved.

Refer to fig. 2, conduct the utility model discloses the scheme of more optimizing, for the convenience of the removal of whole equipment, bottom plate 11's lower terminal surface is close to four corner positions and installs the universal wheel 14 of high strength, and the meaning of taking this scheme lies in, and the removal performance of being convenient for in the tunnel promotes its mobility, convenient to use.

Referring to fig. 6, as a more complete solution of the present invention, in order to facilitate the supporting force provided by the supporting block 31 and the supporting cylinder 21 to be consistent, a first pressure sensor 40a protruding outward is embedded in the upper end surface of the boss 22, a second pressure sensor 40b protruding outward is embedded in the upper end surface of the supporting block 31, a display 41 for displaying the pressure of the first pressure sensor 40a and the second pressure sensor 40b is further disposed on the mounting frame 10, the supporting force provided by the supporting cylinder 21 and the supporting block 31 can be detected through the display 41, when the supporting force provided by the supporting cylinder 21 or the supporting block 31 is smaller, the supporting cylinder 21 or the supporting block 31 is driven to move upward until the readings of the first pressure sensor 40a and the second pressure sensor 40b are equal, which means that the supporting force provided by the supporting cylinder and the supporting block can be consistent by adjusting, and when breaking down, the holding power that a supporting cylinder or supporting shoe provided will reduce to nearly zero, is convenient for to the judgement of trouble, is favorable to operation personnel's maintenance, further promotes the security.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention; various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a colliery is excavated with double bracing supporting device of automatic installation which characterized in that: the support device comprises a mounting frame, a first support component and a second support component, wherein the mounting frame comprises a bottom plate, a top plate and side plates for connecting the bottom plate and the top plate, the bottom plate, the top plate and the side plates form a rectangular closed structure, an opening is formed in the middle of the top plate, the first support mechanism comprises a support cylinder which penetrates through the support cylinder up and down in a rectangular manner, the support cylinder and the opening form sliding guide fit, a boss which extends horizontally outwards is arranged at the top of the support cylinder, a vertical hydraulic cylinder for connecting the lower end face of the boss and the upper end face of the top plate is arranged between the lower end face of the boss and the upper end face of the top plate, the hydraulic cylinders are provided with four hydraulic cylinders which are respectively positioned at four corner positions of the support cylinder, the second support mechanism comprises a support block which is arranged in the support cylinder and is matched with the support cylinder in a sliding guide, be provided with the slider rather than the adaptation in the spout, the slider is provided with two and bilateral symmetry arranges, be provided with between slider and the supporting shoe and be used for connecting branch between them, branch one end is connected with the slider is articulated and the length direction of articulated shaft axial perpendicular to spout that this articulated junction constitutes, the length direction of articulated shaft axial perpendicular to spout that the other end is connected with the supporting shoe is articulated and the articulated shaft axial that this articulated junction constitutes through driving two sliders and being close to each other and slide, make the supporting shoe upward movement, keep away from the slip each other through driving two sliders, make the supporting shoe downward movement.

2. The automatic mounting double-support supporting device for coal mining excavation according to claim 1, wherein: the middle position of the sliding groove along the length direction is fixedly provided with a double-end motor, one output shaft of the double-end motor is coaxially and fixedly provided with a first screw rod and the other output shaft of the double-end motor is coaxially and fixedly provided with a second screw rod, the screw pitch of the first screw rod is equal to that of the second screw rod, the spiral direction of the first screw rod is opposite to that of the second screw rod, one sliding block is sleeved on the first screw rod and forms threaded connection matching with the first screw rod, and the other sliding block is sleeved on the second.

3. An automatically installed double bracing support device for coal mining excavation according to claim 1 or 2, wherein: and the lower end surface of the bottom plate is provided with high-strength universal wheels close to the four corner parts.

4. The automatic mounting double-support supporting device for coal mining excavation according to claim 3, wherein: the upper end surface of the boss is embedded with a first pressure sensor which protrudes outwards, the upper end surface of the supporting block is embedded with a second pressure sensor which protrudes outwards, and a display used for displaying the pressure of the first pressure sensor and the pressure of the second pressure sensor is further arranged on the mounting frame.