Mine single hydraulic prop protection device

Abstract

The application discloses a mine single hydraulic prop protection device, which comprises a supporting assembly, a monitoring assembly and a reinforcing assembly, wherein the supporting assembly is arranged on the hydraulic prop, the supporting assembly is used for pressing the monitoring assembly on a cross beam, and the cross beam is used for supporting a mine layer; the monitoring assembly is arranged on the supporting assembly and comprises a mounting sleeve, a cavity is arranged in the mounting sleeve, a pressure sensor is arranged in the cavity, a pressing device is arranged on the mounting sleeve and is used for pressing the pressure sensor, and a controller is connected with the pressure sensor and is used for monitoring the pressure degree of the pressure sensor. Thus, the monitoring is accurate, the cost is lower, and the device is more suitable for use on a large number of single hydraulic props.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of hydraulic prop equipment, in particular to a mine single hydraulic prop protection device. BACKGROUND

[0002] The single hydraulic prop refers to a single collapsible prop that generates working resistance by using liquid pressure and realizes column lifting and unloading.

[0003] The single hydraulic prop is suitable for horizontal or gently inclined strata with an inclination angle less than 250 degrees, and requires that the floor is not too soft, the periodic pressure of the roof is obvious, and the immediate roof is easy to collapse. In the actual use process, multiple single hydraulic props arranged side by side are needed to support the roof beam in the mining layer. In order to ensure the safety of the working environment, the roof beam and the hydraulic prop in the mining layer need to be monitored.

[0004] In the related art, the protection and monitoring of the hydraulic prop are mainly to monitor the change of the inclination angle of the hydraulic prop to reflect whether the roof beam is deformed and whether there is a risk of collapse in the mining layer. However, when collecting the angle change of the hydraulic prop, a gyroscope is used for monitoring, which has the problem of not obvious dynamic change, which easily leads to inaccurate measurement data. If a tilt sensor is directly used, the cost is high and it is not suitable for use on a large number of single hydraulic props. SUMMARY

[0005] The present application aims to at least solve one of the above technical problems in the art to some extent.

[0006] To this end, one object of the present application is to provide a mine single hydraulic prop protection device that is not only accurate and low in cost, but also suitable for use on a large number of single hydraulic props.

[0007] To achieve the above object, the first aspect of the present application provides a mine single hydraulic prop protection device, comprising: a supporting assembly and a monitoring assembly, wherein the supporting assembly is arranged on the hydraulic prop, the supporting assembly is used to press the monitoring assembly on the cross beam, and the cross beam is used to support the mine layer; the monitoring assembly is arranged on the supporting assembly, and the monitoring assembly comprises: a mounting sleeve, an internal cavity is arranged in the mounting sleeve; a pressure sensor, the pressure sensor is arranged in the cavity; a pressing device, the pressing device is arranged on the mounting sleeve, and the pressing device comprises: a first pressing plate, a column, a second pressing plate and a first spring, wherein the first pressing plate is arranged outside the mounting sleeve, the first pressing plate is used to be pressed on the cross beam when the hydraulic prop rises; the second pressing plate is arranged in the cavity, and the second pressing plate is used to apply pressure to the pressure sensor; the column connects the first pressing plate and the second pressing plate; the first spring is sleeved on the column, and the first spring connects the first pressing plate and the mounting sleeve; a controller, the controller is connected with the pressure sensor, and the controller is used to monitor the pressure degree of the pressure sensor.

[0008] The mine single hydraulic prop protection device according to the present application is not only accurate in monitoring, but also lower in cost, and is more suitable for use on a large number of single hydraulic props.

[0009] In addition, the mine single hydraulic prop protection device according to the present application can have the following additional technical features:

[0010] In an embodiment of the present application, the supporting assembly comprises: a first clamp, a connecting rod and a second spring, wherein the first clamp is sleeved on the hydraulic prop, the connecting rod is connected with the clamp, and the second spring connects the clamp and the connecting rod, and the mounting sleeve is hinged on the connecting rod.

[0011] In an embodiment of the present application, the first pressing plate is embedded with a ball, and the ball is used to roll on the cross beam when the hydraulic prop rises.

[0012] In an embodiment of the present application, an alarm lamp is arranged outside the mounting sleeve, and the alarm lamp is connected with the controller.

[0013] In an embodiment of the present application, the mine single hydraulic prop protection device further comprises a reinforcing assembly, the reinforcing assembly is arranged on the hydraulic prop, and the reinforcing assembly comprises: a second clamp, a supporting rod and a supporting plate, wherein the second clamp is sleeved on the hydraulic prop, one end of the supporting rod is hinged with the second clamp, and the other end of the supporting rod is hinged with the supporting plate.

[0014] In one embodiment of the present application, the hydraulic prop top shaft is connected with a top cover, and the top cover is used for clamping on the cross beam when the hydraulic prop rises.

[0015] Additional aspects and advantages of the present application will be made apparent by the following description and the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0016] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, including the accompanying drawings, wherein:

[0017] Figure 1 is a structural schematic diagram of a mine single hydraulic prop protection device according to an embodiment of the present application;

[0018] Figure 2 is an internal schematic diagram of a monitoring assembly according to an embodiment of the present application;

[0019] Figure 3 is a schematic diagram of a mine single hydraulic prop protection device installation process according to an embodiment of the present application.

[0020] As shown in the drawings:

[0021] 1, support assembly; 11, first clamp; 12, connecting rod; 13, second spring; 2, monitoring assembly; 21, mounting sleeve; 22, pressure sensor; 23, pressing device; 231, first pressing plate; 232, second pressing plate; 233, stand; 234, first spring; 24, controller; 25, ball; 26, alarm lamp; 3, hydraulic prop; 4, top cover; 5, cross beam; 6, reinforcing assembly; 61, second clamp; 62, support rod; 63, support plate. DETAILED DESCRIPTION

[0022] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0023] The mine single hydraulic prop protection device according to the embodiments of the present application is described below in combination with the drawings.

[0024] The mine single hydraulic prop protection device provided by the embodiments of the present application can be applied in the mining industry, such as the condition of hard floor, obvious periodic pressure of roof, and easy-to-collapse surrounding rock of immediate roof, and can be specifically installed on a mine single hydraulic prop to monitor the change of the inclination angle of the hydraulic prop.

[0025] Figure 1 is a structural schematic diagram of a mine single hydraulic prop protection device according to an embodiment of the present application.

[0026] As shown in Figure 1 , the mine single hydraulic prop protection device according to the embodiment of the present application can include a support assembly 1 and a monitoring assembly 2.

[0027] Among them, the support assembly 1 is arranged on the hydraulic prop 3, the support assembly 1 is used to press the monitoring assembly 2 on the cross beam 5, the cross beam 5 is used to support the mine layer to prevent the mine layer from falling, the monitoring assembly 2 is arranged on the support assembly 1, the monitoring assembly 2 is used to monitor the pressure change caused by the position change of the cross beam 5, the top of the hydraulic prop 3 is connected with the top cover 4, the top cover 4 is used to be clamped on the cross beam 5 when the hydraulic prop 3 rises.

[0028] It should be noted that the cross beam 5 is erected by relevant staff in advance and is used to support the top mine layer to prevent the top mine layer from falling or even collapsing.

[0029] As a possible case, the top cover 4 can include a support cover plate and support columns, wherein the number of support columns is four and is arranged at four corners of the support cover plate, when the top cover 4 rises to the cross beam 5 along with the hydraulic prop 3, the support cover plate is in contact with the bottom of the cross beam 5, and the four support columns are clamped on both sides of the cross beam 5 to improve the stability of the top cover 4 after being in contact with the cross beam 5.

[0030] The support plate and the support column described in the embodiment of the present application can be connected by welding.

[0031] As a possible case, the number of support assemblies 1 is two, and the two support assemblies 1 are oppositely arranged, and the number of corresponding monitoring assemblies 2 is also two.

[0032] In order to clearly describe the above embodiment, in an embodiment of the present application, the monitoring assembly 2 can include a mounting sleeve 21, a pressure sensor 22, a pressing device 23, a controller 24 and an alarm lamp 26.

[0033] Among them, the mounting sleeve 21 is internally provided with a cavity, the pressure sensor 22 is arranged in the cavity, the pressing device 23 is arranged on the mounting sleeve 21, the pressing device 23 presses the pressure sensor 22, the controller 24 is connected with the pressure sensor 22, the controller 24 is used to monitor the pressure degree of the pressure sensor 22, the mounting sleeve 21 is externally provided with the alarm lamp 26, the alarm lamp 26 is connected with the controller 24, when the pressure value monitored by the pressure sensor 22 changes beyond the threshold value, the controller 24 controls the alarm lamp 26 to light up.

[0034] It should be noted that the pressure sensor 22 is arranged at the bottom of the cavity, and the pressing device 23 is arranged on the mounting sleeve 21 in an up-down movable manner. In the non-working state, that is, when the pressing device 23 is not used, the bottom of the pressing device 23 is not in contact with the pressure sensor 22.

[0035] As a possible case, the alarm lamp 26 is internally provided with a buzzer connected with the controller. When the controller controls the alarm lamp 26 to light up, the controller controls the buzzer to sound, so as to prompt the relevant staff.

[0036] The pressing device 23 described in the embodiments of the present application can include a first pressing plate 231, a column 233, a second pressing plate 232, and a first spring 234.

[0037] The first pressing plate 231 is arranged outside the mounting sleeve 21, and is used to press on the cross beam 5 when the hydraulic prop 3 rises. The second pressing plate 232 is arranged in the cavity, and is used to press on the pressure sensor 22. The column 233 connects the first pressing plate 231 and the second pressing plate 232. The first spring 234 is sleeved on the column 233, and connects the first pressing plate 231 and the mounting sleeve 21.

[0038] It should be noted that when the first pressing plate 231 is not pressed on the cross beam 5, the second pressing plate 232 is elastically supported by the first spring 234, so that the second pressing plate 232 is not in contact with the pressure sensor 22.

[0039] In the embodiments of the present application, by fixing the support assembly 1 on the hydraulic prop 3, and hinging the monitoring assembly 2 on the support assembly 1, when the hydraulic prop 3 is raised until the top cover 4 is clamped on the cross beam 5, the monitoring assembly 2 is pressed on the cross beam 5 under the action of the support assembly 1, and the downward pressure generated by the cross beam 5 is monitored in real time. When the cross beam 5 deviates, the corresponding downward pressure changes, which causes the pressure data monitored by the monitoring assembly 2 to change, and the relevant staff or the inspection personnel are prompted by the alarm lamp 26 to check, so as to reduce the security risks.

[0040] Specifically, when the hydraulic prop 3 is installed in the condition that the bottom plate is hard, the periodic pressure of the top plate is obvious, and the surrounding rock directly on the top is easy to collapse, it is necessary to monitor the vertical state of the hydraulic prop 3 at all times, that is, by installing the mine single hydraulic prop protection device in the embodiments of the present application.

[0041] During installation, the relevant staff first fix the support assembly 1 on the upper part of the hydraulic prop 3, and then the relevant staff controls the hydraulic prop 3 to rise until the top cover 4 is clamped on the cross beam 5.

[0042] When the hydraulic prop 3 is rising, the support assembly 1 with the monitoring assembly 2 rises until the monitoring assembly 2 is pressed against the cross beam 5, that is, the first pressing plate 231 is pressed against the cross beam 5, the first pressing plate 231 presses the second pressing plate 232, and the second pressing plate 232 is pressed against the pressure sensor 22 until the rising of the hydraulic prop 3 is completed.

[0043] At this time, the pressing device 23 presses the pressure sensor 22, the pressure sensor 22 transmits the pressure data to the controller 24, and when the cross beam 5 is deformed or deviated, the value detected by the pressure sensor 22 changes. When the changed pressure value exceeds the preset threshold range, the controller 24 controls the alarm lamp 26 to light up to remind the relevant staff or inspectors that there is a safety hazard at this place and the hidden danger needs to be eliminated in time.

[0044] The pressure sensor involved in the embodiment of the application does not need to directly detect the pressure between the cross beam 5 and the hydraulic prop 3, so a large-range pressure sensor is not needed. Compared with the high-cost inclination sensor, the inclination sensor with the existing accuracy of 1-2 degrees has a cost of two or three hundred yuan, and the inclination sensor with the accuracy of more than 0.1 degrees has a higher single cost. Therefore, the mining single hydraulic prop protection device in the embodiment of the application has a lower manufacturing cost and is more suitable for use on the mining single hydraulic prop, especially on a large number of single hydraulic props arranged side by side, and the advantage is more obvious.

[0045] In an embodiment of the application, the support assembly 1 can include a first clamp 11, a connecting rod 12, and a second spring 13, wherein the first clamp 11 is sleeved on the hydraulic prop 3, the connecting rod 12 is connected with the first clamp 11, the second spring 13 connects the first clamp 11 and the connecting rod 12, and the mounting sleeve 21 is hinged to the connecting rod 12.

[0046] It should be noted that the first clamp 11 is detachable, that is, the first clamp 11 includes two half clamps, and the two half clamps are pivotally connected. The two half clamps are sleeved on the hydraulic prop 3 and are fastened on the hydraulic prop by fasteners.

[0047] The fastener described in the embodiment of the application is a fastenable bolt or a quick-release bolt. When the first clamp 11 is fastened on the hydraulic prop 3, the first clamp 11 needs to be tightly locked on the hydraulic prop 3. In addition, a rubber pad can be arranged on the inner wall of the two half clamps to ensure that the first clamp 11 is locked while avoiding damage to the outer wall of the hydraulic prop 3.

[0048] Specifically, as shown in FIGS. 1 and 2, Figure 3 When the support assembly 1 is fixed to the upper part of the hydraulic prop 3, the height of the monitoring assembly 2 on the connecting rod 12 needs to be greater than the height of the top cover 4, so that the monitoring assembly 2 can be pressed against the cross beam 5.

[0049] Firstly, the relevant staff will embrace two half hoops hydraulic prop 3, and lock, and then lift the hydraulic prop 3, make the support assembly 1 follow the hydraulic prop 3 and rise, when the monitoring assembly 2 touches the crossbeam 5, the hydraulic prop 3 continues to rise, then the connecting rod 12 is stressed, pushes the monitoring assembly 2 and moves on the crossbeam 5, makes the monitoring assembly 2 move on the crossbeam 5 towards the position away from the top cover 4, when the top cover 4 is clamped on the crossbeam 5, the hydraulic prop 3 rises and ends.

[0050] At this time, the monitoring assembly 2 is pressed on the crossbeam 5, the connecting rod 12 is limited by the pulling force of the second spring 13, so that the monitoring assembly 2 is fixed on the crossbeam 5 and cannot move horizontally, which ensures the stability of the monitoring assembly 2 when monitoring pressure.

[0051] It should be noted that, in order to ensure that the first pressing plate 231 moves smoothly on the crossbeam 5 under the action of the support assembly 1, the rolling ball 25 can be embedded in the first pressing plate 231.

[0052] Specifically, when the support assembly 1 rises with the hydraulic prop 3 until the monitoring assembly 2 contacts the crossbeam 5, the rolling ball 25 on the first pressing plate 231 contacts the crossbeam 5, and when the hydraulic prop 3 continues to rise, the monitoring assembly 2 is pushed away from the top cover 4, at this time, the rolling ball 25 rolls on the crossbeam 5, so that the first pressing plate 231 moves more smoothly on the crossbeam 5.

[0053] As a possible case, the rolling ball 25 can be provided with double rows, and each row of rolling balls 25 can be provided with 2, 3, 4, 5, 6, 7, 8, 9 or more.

[0054] In an embodiment of the present application, the above-mentioned mine single hydraulic prop protection device can further comprise a reinforcing assembly 6, and the reinforcing assembly 6 is arranged on the hydraulic prop 3, and the specific position can be arranged at the lower part of the hydraulic prop 3.

[0055] Specifically, the reinforcing assembly 6 comprises a second clamp 61, a support rod 62 and a support plate 63.

[0056] Among them, the second clamp 61 is sleeved on the hydraulic prop 3, one end of the support rod 62 is hinged with the second clamp 61, and the other end of the support rod 62 is hinged with the support plate 63.

[0057] It should be noted that the second clamp 61 is detachable, that is, the second clamp 61 comprises two half hoops, and the two half hoops are pivotally connected, the two half hoops are sleeved on the lower part of the hydraulic prop 3, and are fastened on the hydraulic prop 3 by fasteners. The above-mentioned fastener is a fastening bolt or a quick release bolt.

[0058] The rubber pad is arranged on the inner wall of the second hoop 61 to prevent damage to the outer wall of the hydraulic prop 3 when the second hoop 61 is locked.

[0059] The number of the support rods 62 and the support plates 63 is at least three, and the support rods 62 are equidistantly distributed on the second hoop 61.

[0060] It should be noted that the hinge between the support rod 62 and the support plate 63 and the hinge between the support rod 62 and the second hoop 61 are provided with damping knobs with locking function.

[0061] Specifically, when the relevant staff sets the reinforcing assembly 6 on the hydraulic prop 3, the relevant staff sets the second hoop 61 on the lower part of the hydraulic prop 3, and ensures that the height of the set position is less than the vertical height of the support rod 62, so as to ensure that the support rod 62 can abut against the support plate 63 in contact with the ground. After determining the approximate position, the relevant staff tightens the fastener to fix the second hoop 61 on the lower part of the hydraulic prop 3.

[0062] Then, the relevant staff adjusts the support rod 62 to drive the stop support plate 63 to move and make the support plate 63 contact with the ground, so that the support plate 63 is tightly attached to the ground. Then, the relevant staff tightens the damping knob to fix the position of the support rod 62 and the support plate 63, and completes the adjustment of the reinforcing assembly 6.

[0063] The reinforcing assembly 6 can keep the hydraulic prop 3 vertical. When the hydraulic prop 3 is pressed by an inclined force, the support rod 62 in the reinforcing assembly 6 is stressed and presses the support plate 63, so that the stability of the hydraulic prop 3 is higher, and the pressure monitoring of the monitoring assembly 2 on the upper part of the hydraulic prop 3 is more accurate.

[0064] Moreover, since the reinforcing assembly 6 is additionally arranged on the hydraulic prop 3, the pressure of the hydraulic prop 3 on the ground is reduced by the additional support plates 63, so as to avoid the risk of sinking of the hydraulic prop 3 when the hydraulic prop 3 is used on soft ground, and further improve the use safety of the hydraulic prop 3.

[0065] In summary, the mine single hydraulic prop protection device according to the embodiment of the present application is not only accurate in monitoring, but also lower in cost, and is more suitable for use on a large number of single hydraulic props.

[0066] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0067] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0068] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0069] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0070] In the description of the specification, the description using the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" etc. means that the particular feature, structure, material or characteristic being described is included in at least one embodiment or example of the present application. The illustrative appearances of the above-mentioned terms in various places in the specification are not necessarily referred to the same embodiment or example. Moreover, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples. Furthermore, the terms "comprise", "comprising", "include", "including", "contain", "containing" or variations thereof are used inclusively and do not exclude the additional inclusion of unrecited features, structures, materials, or characteristics.

[0071] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary and are not to be interpreted as limiting the present application, and ordinary skilled people in the art can make changes, modifications, replacements and variations to the above-described embodiments within the scope of the present application.

Claims

1. A guard for a mine single hydraulic prop, characterised in that, The utility model relates to a kind of hydraulic support monitoring device, including: Supporting assembly (1) and monitoring assembly (2), wherein, The supporting assembly (1) is arranged on hydraulic prop (3), the supporting assembly (1) is used to press the monitoring assembly (2) on crossbeam (5), the crossbeam (5) is used to support seam; The monitoring assembly (2) is arranged on the supporting assembly (1), and the monitoring assembly (2) includes: Mounting sleeve (21), a cavity is arranged inside the mounting sleeve (21); Pressure sensor (22), the pressure sensor (22) is arranged in the cavity; Pressing device (23), the pressing device (23) is arranged on the mounting sleeve (21), and the pressing device (23) includes: first pressing plate (231), second pressing plate (232), stand (233) and first spring (234), wherein, The first pressing plate (231) is arranged outside the mounting sleeve (21); The second pressing plate (232) is arranged in the cavity, wherein the second pressing plate (232) is used to exert pressure on the pressure sensor (22); The stand (233) connects the first pressing plate (231) and the second pressing plate (232); The first spring (234) is sleeved on the stand (233), and the first spring (234) is connected with the first pressing plate (231) and the mounting sleeve (21); Controller (24), the controller (24) is connected with the pressure sensor (22), and the controller (24) is used to monitor the pressure degree of the pressure sensor (22); The supporting assembly (1) includes: first clamp (11), connecting rod (12) and second spring (13), wherein the first clamp (11) is sleeved on the hydraulic prop (3);The connecting rod (12) is connected with the clamp (11);The second spring (13) is connected with the clamp (11) and the connecting rod (12);Wherein, the mounting sleeve (21) is hinged on the connecting rod (12); Ball (25) is embedded on the first pressing plate (231), and the ball (25) is used to roll on the crossbeam (5) when the hydraulic prop (3) rises.

2. The mine single hydraulic prop guard as claimed in claim 1, characterized in that, Alarm lamp (26) is arranged outside the mounting sleeve (21), and the alarm lamp (26) is connected with the controller (24).

3. The mine single hydraulic prop guard as claimed in claim 1, characterized in that, It also includes reinforcing assembly (6), and the reinforcing assembly (6) is arranged on the hydraulic prop (3), and the reinforcing assembly (6) includes: second clamp (61), support rod (62) and support plate (63), wherein, The second clamp (61) is sleeved on the hydraulic prop (3); One end of the support rod (62) is hinged with the second clamp (61), and the other end of the support rod (62) is hinged with the support plate (63).

4. The mine single hydraulic prop guard as claimed in claim 1, wherein, The top of the hydraulic prop (3) is hinged with top cover (4), and the top cover (4) is used to be clamped on the crossbeam (5) when the hydraulic prop (3) rises.

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