Mining supporting structure

Abstract

The utility model relates to the technical field of mining, in particular to a mining supporting structure which comprises a supporting plate, and a lifting assembly is arranged at the lower end of the supporting plate and drives the supporting plate to ascend and descend. The two translation plates are symmetrically arranged on the supporting plate, and the two translation plates are driven by the driving assembly to get away from or get close to each other; the two first pressure-resistant plates are respectively arranged above the two translation plates in parallel, and each first pressure-resistant plate is connected with the corresponding translation plate through a first telescopic assembly; the supporting plate is arranged above the supporting plate and is parallel to the supporting plate; the second pressure-resistant plate is arranged above the supporting plate in parallel, the second pressure-resistant plate is connected with the supporting plate through a second telescopic assembly, the interiors of the two first pressure-resistant plates are of hollow structures, the two opposite sides of the two first pressure-resistant plates are provided with two openings, and the two ends of the second pressure-resistant plate penetrate through the two openings respectively and then are in sliding connection with the interiors of the two first pressure-resistant plates. The utility model has the advantage of adapting to different road sections.

Description

TECHNICAL FIELD

[0001] The utility model relates to mining technical field, concretely is a mine support structure. BACKGROUND

[0002] The coal mine is the area that human extracts coal resources in the coal-rich mining area, but in the coal mine roadway tunneling production operation, in order to avoid coal mine roadway top sand drop, thus needs to use supporting device to support temporarily in roadway tunneling work to roadway top, then carries out artificial reinforcement, to improve the operation efficiency and safety degree.

[0003] Therefore, the patent document discloses a kind of mining roadway supporting device (application number: 202421112206.9), including support assembly and the splicing component of being set at the top of support assembly, the top of multiple splicing components is provided with arcuate component, the inner wall of splicing component is provided with protection component, support assembly includes support one and the support two of being connected in screw thread at the bottom of support one.

[0004] The above patent document can effectively buffer, but the terrain in coal mine is complex, some sections are narrow, some sections are relatively wide, the protection component in the above patent document is relatively single, cannot be adjusted with section, leading to poor protection effect. UTILITY MODEL CONTENT

[0005] Therefore, the utility model provides a kind of mine support structure, to solve the problem of poor protection effect in prior art.

[0006] To achieve the above object, the utility model is realized by the following technical scheme: a kind of mine support structure, including:

[0007] Support plate, its lower end is provided with lifting assembly, and the lifting assembly drives support plate to lift;

[0008] Two translation plates, symmetrically set on the support plate, two translation plates are driven away or close to each other under the drive of drive assembly;

[0009] Two first compression plates, respectively parallelly set above two translation plates, each first compression plate is connected with corresponding translation plate by first telescopic assembly;

[0010] Support plate, set above the support plate and parallel with support plate;

[0011] Second compression plate, parallelly set above the support plate, and the second compression plate is connected with support plate by second telescopic assembly, the inside of two first compression plates is hollow structure, and the opposite sides of two first compression plates are two openings, and the two ends of the second compression plate respectively penetrate two openings and are slidably connected with the inside of two first compression plates.

[0012] The further improvement of the utility model lies in that the driving assembly comprises:

[0013] The first screw rod is vertically arranged on the supporting plate below the supporting plate and rotates under the driving of the motor;

[0014] The sliding block is threadedly connected with the first screw rod and penetrates through;

[0015] The two first connecting rods are hingedly connected with the two ends of the sliding block respectively, and the second ends of the two first connecting rods are hingedly connected with the two translation plates respectively.

[0016] The further improvement of the utility model lies in that the first telescopic assembly comprises:

[0017] The guide column is connected with the first compression plate at the upper end;

[0018] The guide cylinder is arranged on the translation plate, and the guide cylinder is sleeved on the guide column;

[0019] The first spring is arranged in the guide cylinder between the lower end of the guide column and the bottom of the guide cylinder.

[0020] The further improvement of the utility model lies in that the lifting assembly comprises:

[0021] The plurality of supporting legs are uniformly arranged below the supporting plate, and the supporting box is arranged below each supporting leg, and the lower end of the supporting leg penetrates through the top of the supporting box;

[0022] The plurality of racks correspond to the plurality of supporting legs one by one, and the rack is connected with the supporting leg;

[0023] The plurality of first gears correspond to the plurality of racks one by one and are rotatably arranged in the corresponding supporting box, the first gear is engaged with the rack, and one of the first gears rotates under the driving of the driving member.

[0024] The further improvement of the utility model lies in that the driving member comprises:

[0025] The second gear is rotatably arranged in the supporting box, and the diameter of the second gear is greater than that of the first gear;

[0026] The first rotating shaft is rotatably arranged in the supporting box, the third gear is arranged on the first rotating shaft, the diameter of the third gear is smaller than that of the second gear, and the first rotating shaft is provided with the first hand wheel after the end of the first rotating shaft extends out of the supporting box.

[0027] The further improvement of the utility model lies in that the driving member further comprises:

[0028] The ratchet wheel is arranged on the first rotating shaft.

[0029] The pawl is rotatably mounted in the support box, with its first end adapted to the ratchet. A second spring is provided on the lower surface of the second end of the pawl, and the lower end of the second spring is connected to the mounting plate inside the support box.

[0030] A further improvement of this utility model is that the driving component further includes a second screw, which is disposed on the support box. The lower end of the second screw is threadedly connected to and passes through the top of the support box. The lower end of the second screw is disposed opposite to the second end of the pawl. A second handwheel is disposed at the upper end of the second screw.

[0031] A further improvement of this invention is that the motor is a reversible motor.

[0032] The technological advancements achieved by this utility model due to the adoption of the above technical solution are as follows:

[0033] This utility model provides a mine support structure. Based on the actual height of the roadway, a lifting assembly is activated, which lifts the support plate until it reaches a suitable height. After height adjustment, a drive assembly is activated, which moves two sliding plates closer together or further apart to adjust to a suitable width. During movement, the sliding plates can be moved synchronously by a first telescopic assembly, which moves two first pressure-resistant plates simultaneously. In the event of rockfalls, spalling, or other dangerous situations in the roadway, the first and second pressure-resistant plates will quickly absorb the impact from above. Simultaneously, the first and second telescopic assemblies fully utilize their crucial buffering and energy-absorbing functions. Compared to existing technologies, this structure effectively adapts to different road sections and improves protection. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a schematic diagram of the overall structure of the support structure described in this utility model;

[0036] Figure 2 This is a schematic diagram of the drive assembly of the support structure described in this utility model;

[0037] Figure 3 This is a schematic diagram of the lifting assembly of the support structure described in this utility model;

[0038] Figure 4 This is a schematic diagram of the driving component of the support structure described in this utility model.

[0039] Reference Signs List:

[0040] 10-support plate, 11-translation plate, 12-first compression plate, 13-branch plate, 14-second compression plate, 20-driving assembly, 21-first screw, 22-motor, 23-sliding block, 24-first connecting rod, 30-first telescopic assembly, 31-guide column, 32-guide cylinder, 33-first spring, 40-lifting assembly, 41-support leg, 42-rack, 43-first gear, 44-support box, 50-driving member, 51-second gear, 52-first rotating shaft, 521-first hand wheel, 53-third gear, 54-ratchet wheel, 55-ratchet pawl, 551-second spring, 552-mounting plate, 56-second screw, 561-second hand wheel. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, specific details, such as specific system structures, technologies and the like, are given in the following description for explanation but not for limitation, so that the embodiments of the utility model can be thoroughly understood. However, those skilled in the art should know that the utility model can also be implemented in other embodiments without the specific details. In other cases, detailed description of well-known systems, devices, circuits and methods is omitted to avoid unnecessary details to hinder the description of the utility model.

[0042] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, specific details, such as specific system structures, technologies and the like, are given in the following description for explanation but not for limitation, so that the embodiments of the utility model can be thoroughly understood. However, those skilled in the art should know that the utility model can also be implemented in other embodiments without the specific details. In other cases, detailed description of well-known systems, devices, circuits and methods is omitted to avoid unnecessary details to hinder the description of the utility model. Figure 1 to the drawings Figure 4 It can be known that a mine supporting structure mainly comprises the following parts or components: a support plate 10, a translation plate 11, a first compression plate 12, a branch plate 13, and a second compression plate 14.

[0043] In the utility model, the lower end of the support plate 10 is provided with a lifting assembly 40, the lifting assembly 40 drives the support plate 10 to lift; two translation plates 11 are symmetrically and slidably arranged on the support plate 10, and the two translation plates 11 are driven to move away from or close to each other by a driving assembly 20; two first compression plates 12 are respectively arranged in parallel above the two translation plates 11, and each first compression plate 12 is connected with the corresponding translation plate 11 through a first telescopic assembly 30; the branch plate 13 is fixedly arranged above the support plate 10 and is parallel to the support plate 10; the second compression plate 14 is arranged in parallel above the branch plate 13, and the second compression plate 14 is connected with the branch plate 13 through a second telescopic assembly (not marked in the figure); the two first compression plates 12 are hollow structures, and the opposite sides of the two first compression plates 12 are two openings, and the two ends of the second compression plate 14 penetrate through the two openings and are slidably connected with the two first compression plates 12.

[0044] Specifically, the support plate 13 is connected with the support plate 10 through the side plate, so as to be fixed.

[0045] As an embodiment, the first anti-pressure plate 12 is connected with the support plate 10 through the side plate, and the second anti-pressure plate 14 is connected with the support plate 10 through the side plate. Figure 2 It can be known that the driving assembly 20 comprises a first screw rod 21 vertically arranged on the support plate 10 below the support plate 13 and rotating under the driving of a motor 22; a sliding block 23 is threadedly connected with the first screw rod 21 and penetrates through; two first connecting rods 24 are respectively hinged with two ends of the sliding block 23 at first ends, and are respectively hinged with two translation plates 11 at second ends.

[0046] The motor 22 drives the first screw rod 21 to rotate, the first screw rod 21 drives the sliding block 23 to ascend and descend, the sliding block 23 drives the two translation plates 11 to approach or move away from each other through the two first connecting rods 24, and the two translation plates 11 can drive the two first anti-pressure plates 12 to move synchronously through the first telescopic assembly 30, so as to effectively adapt to road sections of different widths.

[0047] Specifically, the motor 22 is a forward and reverse motor 22.

[0048] As an embodiment, the first anti-pressure plate 12 is connected with the support plate 10 through the side plate, and the second anti-pressure plate 14 is connected with the support plate 10 through the side plate. Figure 2 It can be known that the first telescopic assembly 30 comprises a guide column 31, an upper end of the guide column 31 being connected with the first anti-pressure plate 12; a guide cylinder 32 is fixedly arranged on the translation plate 11, the guide cylinder 32 being sleeved on the guide column 31; a first spring 33 is arranged in the guide cylinder 32 between a lower end of the guide column 31 and a bottom of the guide cylinder 32.

[0049] Once a dangerous condition such as rockfall or rib spalling occurs in the roadway, the rockfall or rib spalling will fall on the two first anti-pressure plates 12, the two first anti-pressure plates 12 will vibrate up and down, the guide column 31 will vibrate up and down in the guide cylinder 32, and the first spring 33 can be contracted or relaxed, so as to effectively buffer, and the first anti-pressure plate 12 and the second anti-pressure plate 14 can be arched.

[0050] Specifically, the first telescopic assembly 30 and the second telescopic assembly have the same structure, that is, the rockfall or rib spalling will fall on the two first anti-pressure plates 12 and the second anti-pressure plate 14, and the first telescopic assembly 30 and the second telescopic assembly can effectively buffer.

[0051] As an embodiment, the first anti-pressure plate 12 is connected with the support plate 10 through the side plate, and the second anti-pressure plate 14 is connected with the support plate 10 through the side plate. Figure 3It can be known that the lifting assembly 40 comprises a plurality of support legs 41 which are uniformly and fixedly arranged below the support plate 10, each of the support legs 41 is provided with a support box 44 below, and the lower end of the support leg 41 penetrates the top of the support box 44; a plurality of racks 42 correspond to the plurality of support legs 41 one by one, the rack 42 is connected with the support leg 41; a plurality of first gears 43 correspond to the plurality of racks 42 one by one and are rotatably arranged in the corresponding support box 44, the first gear 43 is engaged with the rack 42, and one of the first gears 43 rotates under the driving of the driving member 50. The driving member 50 comprises a second gear 51 which is rotatably arranged in the support box 44, the diameter of the second gear 51 is greater than that of the first gear 43; a first rotating shaft 52 is rotatably arranged in the support box 44, the third gear 53 is arranged on the first rotating shaft 52, the diameter of the third gear 53 is smaller than that of the second gear 51, and the first rotating shaft 52 extends out of the support box 44 and is provided with a first hand wheel 521 at the end.

[0052] Rotating the first hand wheel 521, the first hand wheel 521 drives the third gear 53 to rotate, the third gear 53 drives the second gear 51 to rotate, the second gear 51 drives the first gear 43 to rotate, the first gear 43 drives the rack 42 to lift, the rack 42 drives the support leg 41 to lift, and the plurality of support legs 41 synchronously lift, and the plurality of support legs 41 drive the support plate 10 to lift, which can effectively adapt to different heights.

[0053] Specifically, the pinion (third gear 53) drives the large gear (second gear 51), and then the large gear (second gear 51) drives another pinion (first gear 43), and finally the pinion (first gear 43) drives the rack 42 to realize the lifting transmission structure which can be multi-stage speed reduction, that is, when the pinion (third gear 53) drives the large gear (second gear 51), the rotation speed of the large gear (second gear 51) is reduced but the torque is increased, and when the subsequent large gear (second gear 51) drives another pinion (first gear 43), the torque is further amplified.

[0054] In the embodiment, the description is combined with the drawings Figure 4 It can be known that the driving member 50 further comprises a ratchet wheel 54 which is fixedly arranged on the first rotating shaft 52; the middle part of the pawl 55 is rotatably arranged in the support box 44, the first end of the pawl 55 is matched with the ratchet wheel 54, the second end of the pawl 55 is fixedly provided with the second spring 551 on the lower surface, and the lower end of the second spring 551 is connected with the mounting plate 552 in the support box 44. The driving member 50 further comprises a second screw rod 56 which is arranged on the support box 44, the lower end of the second screw rod 56 is threadedly connected with the top of the support box 44 and penetrates the top, the lower end of the second screw rod 56 is arranged opposite to the second end of the pawl 55, and the upper end of the second screw rod 56 is fixedly provided with the second hand wheel 561.

[0055] Rotating the second hand wheel 561, the second hand wheel 561 drives the second screw rod 56 to descend, the lower end of the second screw rod 56 presses the second end of the ratchet pawl 55, the second spring 551 contracts, at this time, the first end of the ratchet pawl 55 is separated from the ratchet wheel 54, the first rotating shaft 52 can be rotated, thereby driving the supporting leg 41 to ascend or descend, when positioning is required, rotating the second hand wheel 561, the second hand wheel 561 drives the second screw rod 56 to ascend, the lower end of the second screw rod 56 is separated from the second end of the ratchet pawl 55, the second spring 551 relaxes, at this time, the first end of the ratchet pawl 55 is clamped on the ratchet wheel 54, the first rotating shaft 52 cannot be rotated, and locking of the first rotating shaft 52 is completed, so that the supporting leg 41 cannot fall down.

[0056] The utility model provides a kind of mine supporting structure, when using, specific operating process is as follows:

[0057] According to the actual height of the roadway, the lifting assembly 40 is started, the lifting assembly 40 drives the supporting plate 10 to lift until it is adjusted to the appropriate height, after the height adjustment is completed, the driving assembly 20 is turned on, the driving assembly 20 drives the two translation plates 11 to move closer to each other or farther away from each other, so as to be adjusted to the appropriate width, and when the translation plates 11 move, the two first compression plates 12 can be synchronously moved by the first telescopic assembly 30, once rockfall, rib spalling and other dangerous conditions occur in the roadway, the first compression plate 12 and the second compression plate 14 will rapidly receive the impact force from the top respectively, at the same time, the first telescopic assembly 30 and the second telescopic assembly fully play the key role of buffering and energy absorption, which can effectively adapt to different road sections and improve the protection effect.

[0058] It should be noted that, in this patent application, relational terms such as first and second and the like can merely be used to distinguish one entity or action from another, without necessarily requiring or implying that there is any such actual relationship or order between these entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof are intended to cover non-exclusive inclusions, so that a process, method, article, or apparatus including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article, or apparatus, without more limitations, the statement "comprises a limited element" does not exclude the presence of additional identical elements in the process, method, article, or apparatus including the element.

[0059] The above examples are only used to illustrate the technical solutions of the present application, and are not limited thereto; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can still be modified, or some technical features therein can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. A mining support structure, characterized in that, include: A support plate, with a lifting assembly at its lower end, the lifting assembly driving the support plate to rise and fall; Two translation plates are symmetrically arranged on the support plate, and the two translation plates move away from or closer to each other under the drive of the drive assembly; Two first pressure-resistant plates are respectively arranged in parallel above two translation plates, and each first pressure-resistant plate is connected to the corresponding translation plate through a first telescopic component; A support plate is disposed above the support plate and parallel to the support plate; The second pressure-resistant plate is arranged parallel to the support plate above it. The second pressure-resistant plate is connected to the support plate through the second telescopic component. The two first pressure-resistant plates have a hollow structure inside. There are two openings on the opposite sides of the two first pressure-resistant plates. The two ends of the second pressure-resistant plate pass through the two openings respectively and are slidably connected to the inside of the two first pressure-resistant plates.

2. The mining support structure according to claim 1, characterized in that, The driving component includes: The first screw is vertically mounted on the support plate below the support plate and rotates under the drive of the motor; The slider is threadedly connected to and passes through the first screw. The first ends of the two first connecting rods are respectively hinged to the two ends of the slider, and the second ends of the two first connecting rods are respectively hinged to the two translation plates.

3. A mining support structure according to claim 1, characterized in that, The first telescopic component includes: The guide post is connected at its upper end to the first pressure-resistant plate; A guide cylinder is disposed on the translation plate, and the guide cylinder is sleeved on the guide post; The first spring is disposed inside the guide cylinder between the lower end of the guide post and the bottom of the guide cylinder.

4. A mining support structure according to claim 1, characterized in that, The lifting assembly includes: Multiple support legs are evenly arranged below the support plate, and a support box is provided below each support leg. The lower end of the support leg passes through the top of the support box. Multiple racks correspond one-to-one with multiple support legs, and the racks are connected to the support legs; Multiple first gears, corresponding one-to-one with multiple racks, are rotatably mounted in corresponding support boxes. The first gears mesh with the racks, and one of the first gears rotates under the drive of the drive component.

5. A mining support structure according to claim 4, characterized in that, The driving component includes: The second gear is rotatably mounted inside the support box, and the diameter of the second gear is larger than that of the first gear. A first rotating shaft is rotatably disposed inside the support box. A third gear is disposed on the first rotating shaft. The diameter of the third gear is smaller than that of the second gear. A first handwheel is disposed at the end of the first rotating shaft after it extends out of the support box.

6. A mining support structure according to claim 5, characterized in that, The driving component further includes: A ratchet is mounted on the first rotating shaft; The pawl is rotatably mounted in the support box, with its first end adapted to the ratchet. A second spring is provided on the lower surface of the second end of the pawl, and the lower end of the second spring is connected to the mounting plate inside the support box.

7. A mining support structure according to claim 6, characterized in that, The driving component also includes a second screw, which is disposed on the support box. The lower end of the second screw is threadedly connected to and passes through the top of the support box. The lower end of the second screw is disposed opposite to the second end of the pawl. A second handwheel is disposed at the upper end of the second screw.

8. A mining support structure according to claim 2, characterized in that, The motor is a reversible motor.

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