阅读说明：本技术 一种适用于煤矿井下作业的应力测量装置 (Stress measuring device suitable for coal mine underground operation ) 是由 戴林超 张志刚 孙海涛 刘延保 赵旭生 王波 曹偈 于 2021-01-04 设计创作，主要内容包括：本发明涉及一种适用于煤矿井下作业的应力测量装置,属于煤矿开采技术领域。本发明公开了一种适用于煤矿井下作业的应力测量装置,包括采集仪与安装块,所述采集仪的一侧设置有传感器,所述采集仪后表面设置有安装块,所述安装块内侧开设有第一安装槽,且所述第一安装槽内侧底端表面开设有滑槽,所述第一安装槽内侧设置有蜗簧,所述第一安装槽内侧设置有拉绳,且所述拉绳一端固定连接蜗簧,所述拉绳远离蜗簧的一端贯穿滑槽处于安装块外侧,且所述拉绳处于安装块外侧的一端表面设置有第一限位块；通过设置了拉绳,解决了作业人员在井下使用采集仪时,由于采集仪外表面附着了大量的煤灰,导致使用时容易从手中滑落,造成设备损伤的问题,起到防止脱落的作用。(The invention relates to a stress measuring device suitable for underground coal mine operation, and belongs to the technical field of coal mining. The invention discloses a stress measuring device suitable for underground operation of a coal mine, which comprises an acquisition instrument and an installation block, wherein a sensor is arranged on one side of the acquisition instrument, the rear surface of the acquisition instrument is provided with the installation block, the inner side of the installation block is provided with a first installation groove, the bottom end surface of the inner side of the first installation groove is provided with a sliding groove, the inner side of the first installation groove is provided with a spiral spring, the inner side of the first installation groove is provided with a pull rope, one end of the pull rope is fixedly connected with the spiral spring, one end of the pull rope, far away from the spiral spring, penetrates through the sliding groove and is positioned on the outer side of the installation block, and the surface of; through having set up the stay cord, when having solved the operation personnel and using the collection appearance in the pit, because a large amount of coal ashes have been attached to the collection appearance surface, from the landing in the hand easily when leading to the use, cause the problem of equipment damage, play the effect that prevents to drop.)

1. The utility model provides a stress measurement device suitable for colliery is operation in pit, includes collection appearance (1) and installation piece (2), its characterized in that: a sensor (19) is arranged on one side of the acquisition instrument (1), an installation block (2) is arranged on the rear surface of the acquisition instrument (1), a first installation groove (3) is formed in the inner side of the installation block (2), a sliding groove (6) is formed in the bottom end surface of the inner side of the first installation groove (3), a spiral spring (5) is arranged on the inner side of the first installation groove (3), a pull rope (4) is arranged on the inner side of the first installation groove (3), one end of the pull rope (4) is fixedly connected with the spiral spring (5), one end of the pull rope (4) far away from the spiral spring (5) penetrates through the sliding groove (6) and is positioned on the outer side of the installation block (2), a first limiting block (7) is arranged on the surface of one end of the pull rope (4) positioned on the outer side of the installation block (2), a first limiting groove (8) is formed in the inner side of the first, draw-in groove (13) have been seted up to inboard one end surface of second spacing groove (9), just second spacing groove (9) inboard other end surface is provided with spring (10), the spring (10) other end is provided with second stopper (11), second stopper (11) other end is provided with kelly (12), just kelly (12) other end block draw-in groove (13) are inboard, second stopper (11) front surface is provided with shifting block (14), just shifting block (14) other end is in gathers appearance (1) outside, third spacing groove (15) have been seted up to gather appearance (1) rear surface bottom, just third spacing groove (15) inboard each other is the intercommunication with second spacing groove (9).

2. The stress measurement device suitable for the underground operation of the coal mine according to claim 1, characterized in that: second mounting groove (16) have been seted up to collection appearance (1) rear surface, thread groove (17) have been seted up to second mounting groove (16) inboard, installation piece (2) side surface is provided with screw rod (18), just the screw rod (18) other end is in thread groove (17) inboard.

3. The stress measurement device suitable for the underground operation of the coal mine according to claim 1, characterized in that: the first limiting block (7) is fixedly connected with the pull rope (4), and the length of the first limiting block (7) is nine times of the length of the third limiting groove (15).

4. The stress measurement device suitable for the underground operation of the coal mine according to claim 1, characterized in that: the diameter of the inner side of the first limiting groove (8) is the same as that of the inner side of the clamping groove (13), and the diameter of the section of the clamping rod (12) is nine times of the diameter of the inner side of the clamping groove (13).

5. The stress measurement device suitable for the underground operation of the coal mine according to claim 1, characterized in that: the second limiting block (11) is fixedly connected with the spring (10), and a groove is formed in the surface of one end, located on the spring (10), of the second limiting block (11).

6. The stress measurement device suitable for the underground operation of the coal mine according to claim 1, characterized in that: the shifting block (14) is fixedly connected with the second limiting block (11), and an anti-skidding rubber sleeve is arranged on the outer surface of one end, located on the outer side of the acquisition instrument (1), of the shifting block (14).

7. The stress measurement device suitable for the underground operation of the coal mine according to claim 2, characterized in that: the mounting block (2) is fixedly connected with the screw rod (18), and anti-skid grains are arranged on the surface of the mounting block (2).

Technical Field

The invention belongs to the technical field of coal mining, and relates to a stress measuring device suitable for coal mine underground operation.

Background

Mining induced stress refers to stress formed after redistribution in rock mass under the influence of mining engineering. Most coal mines have complex geological structures and fault development, so that stress distribution and change are extremely complex. In recent years, with the annual increase of coal mining depth (the average increase of 10-30 m per year), the influence of horizontal stress and structural stress in coal-rock mass ground stress is gradually increased; and the impact risk of the coal seam, the roof and the combined structure thereof is obviously enhanced due to the deep high stress environment, and the daily safe and efficient production of the deep coal mine is seriously influenced. Therefore, the method can accurately measure the underground stress of the coal mine, and has an extremely important role in guaranteeing the safe mining of the coal mine by analyzing the distribution characteristics and the distribution rules of the underground stress of the coal mine.

At present, a coal mine stress measuring device is needed to be used when stress measurement is carried out under a coal mine, but the existing coal mine stress measuring device still has defects. When a measuring instrument or a collecting instrument in the existing coal mine stress measuring device is used, due to the fact that coal mine underground dust is serious, a large amount of coal dust is attached to the outer surface of the instrument, the instrument easily slips from a hand when in use, and equipment is damaged.

Disclosure of Invention

In view of the above, the present invention is directed to a stress measuring device suitable for underground coal mine operation.

In order to achieve the purpose, the invention provides the following technical scheme: a stress measuring device suitable for underground operation of a coal mine comprises an acquisition instrument and an installation block, wherein a sensor is arranged on one side of the acquisition instrument, the installation block is arranged on the rear surface of the acquisition instrument, a first installation groove is formed in the inner side of the installation block, a sliding groove is formed in the bottom end surface of the inner side of the first installation groove, a spiral spring is arranged on the inner side of the first installation groove, a pull rope is arranged on the inner side of the first installation groove, one end of the pull rope is fixedly connected with the spiral spring, one end of the pull rope, far away from the spiral spring, penetrates through the sliding groove and is positioned on the outer side of the installation block, a first limiting block is arranged on the surface of one end of the pull rope, positioned on the outer side of the installation block, a first limiting groove is formed in the inner side of the first limiting block, a second limiting groove is formed in, the spring other end is provided with the second stopper, the second stopper other end is provided with the kelly, just the kelly other end block draw-in groove is inboard, second stopper front surface is provided with the shifting block, just the shifting block other end is in gathers the appearance outside, gather appearance rear surface bottom and seted up the third spacing groove, just the third spacing inslot side is each other to be linked together with the second spacing groove.

As a preferable technical scheme of the present invention, a second mounting groove is formed in the rear surface of the collecting instrument, a threaded groove is formed in the inner side of the second mounting groove, a screw is disposed on the surface of one side of the mounting block, and the other end of the screw is located in the inner side of the threaded groove.

As a preferable technical scheme of the present invention, the first limiting block is fixedly connected to the pull rope, and the length of the first limiting block is nine times of the zero point of the length of the third limiting groove.

As a preferable technical scheme of the invention, the diameter of the inner side of the first limit groove is the same as that of the inner side of the clamping groove, and the diameter of the section of the clamping rod is nine times of zero of the diameter of the inner side of the clamping groove.

As a preferable technical scheme of the invention, the second limiting block is fixedly connected with the spring, and a groove is formed in the surface of one end, positioned on the spring, of the second limiting block.

As a preferable technical scheme of the invention, the shifting block is fixedly connected with the second limiting block, and an anti-skid rubber sleeve is arranged on the outer surface of one end of the shifting block, which is positioned outside the acquisition instrument.

As a preferable technical scheme of the invention, the mounting block is fixedly connected with the screw rod, and the surface of the mounting block is provided with anti-skid grains.

The invention has the beneficial effects that:

1. through having set up the stay cord, when having solved the operation personnel and using the collection appearance in the pit, because a large amount of coal ashes have been attached to the collection appearance surface, from the landing in the hand easily when leading to the use, cause the problem of equipment damage, play the effect that prevents to drop.

2. Through having set up the screw rod, solved and gathered the appearance and when long-time use in the pit, the stay cord is infected with coal ash very easily and needs regularly clean, only needs to rotate the installation piece and just can accomplish the installation and the dismantlement of installation piece, is convenient for clean alone the stay cord, plays convenient to detach's effect.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.

Drawings

For the purposes of promoting a better understanding of the objects, aspects and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:

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

FIG. 2 is a schematic view of the back structure of the acquisition instrument of the present invention;

FIG. 3 is a schematic side view of the acquisition instrument of the present invention;

FIG. 4 is an enlarged view of the structure of FIG. 2 at A according to the present invention;

FIG. 5 is an enlarged view of the structure of FIG. 2 at B according to the present invention;

FIG. 6 is an enlarged view of the structure of FIG. 3 at C according to the present invention;

reference numerals: 1-collecting instrument; 2-mounting the block; 3-a first mounting groove; 4-pulling a rope; 5-a volute spring; 6-a chute; 7-a first limiting block; 8-a first limiting groove; 9-a second limiting groove; 10-a spring; 11-a second stopper; 12-a clamping rod; 13-a card slot; 14-a shifting block; 15-a third limiting groove; 16-a second mounting groove; 17-thread groove; 18-a screw; 19-sensor.

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.

Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the invention thereto; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.

Referring to fig. 1 to 5, a stress measuring device suitable for underground operation of a coal mine comprises an acquisition instrument 1 and an installation block 2, wherein one side of the acquisition instrument 1 is provided with a sensor 19, the rear surface of the acquisition instrument 1 is provided with the installation block 2, the inner side of the installation block 2 is provided with a first installation groove 3, the bottom end surface of the inner side of the first installation groove 3 is provided with a chute 6, the inner side of the first installation groove 3 is provided with a spiral spring 5, the inner side of the first installation groove 3 is provided with a pull rope 4, one end of the pull rope 4 is fixedly connected with the spiral spring 5, the end of the pull rope 4 far away from the spiral spring 5 penetrates through the chute 6 and is positioned at the outer side of the installation block 2, the surface of the pull rope 4 at the outer side of the installation block 2 is provided with a first limiting block 7, the inner side of the first limiting block 7 is provided with a first, a spring 10 is arranged on the surface of the other end of the inner side of the second limiting groove 9, a second limiting block 11 is arranged at the other end of the spring 10, a clamping rod 12 is arranged at the other end of the second limiting block 11, the other end of the clamping rod 12 is clamped on the inner side of a clamping groove 13, a shifting block 14 is arranged on the front surface of the second limiting block 11, the other end of the shifting block 14 is positioned on the outer side of the acquisition instrument 1, a third limiting groove 15 is arranged at the bottom end of the rear surface of the acquisition instrument 1, and the inner side of the third limiting groove 15 is;

when the acquisition instrument 1 needs to be used, firstly, the shifting block 14 is shifted to be positioned at one end outside the acquisition instrument 1, the shifting block 14 drives the clamping rod 12 to synchronously move along the inner side of the second limiting groove 9 through the second limiting block 11, at the moment, the spring 10 is stressed to contract, when the shifting block 14 is shifted to a specified position, one end, positioned at the inner side of the clamping groove 13, of the clamping rod 12 completely leaves the inner side of the clamping groove 13 and is positioned at the inner side of the second limiting groove 9, the first limiting block 7 is pulled to approach the third limiting groove 15, the first limiting block 7 drives the pull rope 4 to slide along the inner side of the sliding groove 6, simultaneously, the pull rope 4 pulls the spiral spring 5 to deform under stress, at the moment, the first limiting block 7 is moved in and out of the inner side of the third limiting groove 15 to enable the first limiting groove 8 and the clamping groove 13 to be positioned on the same horizontal line, the shifting block 14 is loosened, at the, at the moment, the hand can pass through the inner side of the pull rope 4 to use the acquisition instrument 1, and the operation is finished; through having set up stay cord 4, solved the operation personnel when using collection appearance 1 in the pit, because collection appearance 1 surface has adhered to a large amount of coal ashes, from the landing in the hand easily when leading to the use, cause the problem of equipment damage, play the effect that prevents to drop.

Referring to fig. 3 and 6, a second mounting groove 16 is formed in the rear surface of the collecting instrument 1, a threaded groove 17 is formed in the inner side of the second mounting groove 16, a screw 18 is arranged on the surface of one side of the mounting block 2, and the other end of the screw 18 is located in the inner side of the threaded groove 17;

when the mounting block 2 needs to be detached independently, firstly, the mounting block 2 is rotated, the mounting block 2 drives the screw rod 18 to rotate synchronously, the screw rod 18 moves horizontally to the outer side under the action of the internal thread on the inner side of the thread groove 17, and when the screw rod 18 completely leaves the inner side of the thread groove 17, the mounting block 2 can be detached, and the operation is completed; through having set up screw rod 18, solved collection appearance 1 and when using in the pit for a long time, stay cord 4 is infected with the coal ash very easily and needs regularly clean, only needs to rotate installation piece 2 and just can accomplish the installation and the dismantlement of installation piece 2, is convenient for clean alone stay cord 4, plays convenient to detach's effect.

Referring to fig. 4 and 5, a stress measuring device suitable for underground operation of a coal mine is disclosed, in which a first limiting block 7 is fixedly connected with a pull rope 4, and the length of the first limiting block 7 is nine times of the length of a third limiting groove 15; through having set up length and being first stopper 7 of nine times of third spacing groove 15 length zero point, be favorable to first stopper 7 better place in third spacing groove 15 inboardly, promote the placement effect.

Referring to fig. 4 and 5, a stress measuring device for coal mine downhole operation is disclosed, in which the diameter of the inner side of the first limiting groove 8 is the same as the diameter of the inner side of the locking groove 13, and the diameter of the section of the locking rod 12 is nine times of the zero point of the diameter of the inner side of the locking groove 13; be the kelly 12 of first spacing groove 8 and draw-in groove 13 inboard diameter zero point nine times through having set up the cross sectional diameter, be favorable to the kelly 12 better run through 8 block draw-in grooves 13 inboards of first spacing groove, promoted the effect of running through.

Referring to fig. 5, a stress measuring device suitable for underground operation of a coal mine is disclosed, in which a second limiting block 11 is fixedly connected to a spring 10, and a groove is formed on a surface of the second limiting block 11 at one end of the spring 10; through having set up the notched second stopper 11 of one end, be favorable to second stopper 11 better with spring 10 fixed connection, promoted the connection effect.

Referring to fig. 5, a stress measuring device suitable for underground operation of a coal mine is disclosed, in which a shifting block 14 is fixedly connected with a second limiting block 11, and an anti-skid rubber sleeve is arranged on the outer surface of one end of the shifting block 14, which is located at the outer side of an acquisition instrument 1; through having set up the anti-skidding rubber sleeve that shifting block 14 is in collection appearance 1 outside one end, increase frictional force when being favorable to stirring shifting block 14 has promoted the effect of stirring.

Referring to fig. 6, a stress measuring device suitable for underground operation of a coal mine is disclosed, in which an installation block 2 is fixedly connected with a screw 18, and the surface of the installation block 2 is provided with anti-skid threads; through the anti-skidding line that has set up 2 outside surfaces of installation piece, increase frictional force when being favorable to rotating installation piece 2 promotes and rotates the effect.

Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.