CN115898548A - Anchor rod tensile deformation monitoring and early warning device in rock stratum - Google Patents

Abstract

The invention relates to a monitoring and early warning device for tensile deformation of anchor rods in rock formations. A protective sleeve is installed on the outer wall of the stress sensor; the stress sensor is led out and installed with a wire; the end of the wire is connected with a mounting plate; the protective sleeve The outer wall of the cylinder is fixedly installed with a protective shell; the wires and the mounting plate are located in the protective shell; the middle inner wall of the stress sensor is fixedly sleeved with a convex plate; the outer wall of the protective shell is fixedly installed with a signal converter and a signal transmitter; The internal bottom surface of the protective shell is symmetrically fixed with a battery; the outer wall of the protective shell is also fixedly installed with an alarm horn, an early warning red light, an early warning spring light and an early warning green light; the surface of the mounting plate is also embedded with a display screen and a controller; It is possible to provide a monitoring and early warning device for tensile deformation of anchor rods in rock formations, in which the dynamometer has internal parts of the protective cover that are not easily damaged, the dynamometer can perform external data transmission on the tension signal, and the dynamometer can alarm the overload tension.

Description

A monitoring and early warning device for tensile deformation of anchor rods in rock formations

technical field

The invention belongs to the technical field related to monitoring equipment, and in particular relates to a monitoring and early warning device for the tensile deformation of a rock bolt in a rock formation.

Background technique

At present, my country's coal mines generally use bolt support to control the surrounding rock of the roadway. The whole or multiple roadways are supported with the same bolt type, specification and density. In fact, the lithology of the surrounding rock of different roadways is different, and the requirements for surrounding rock control are different. , the use of the same support parameters results in a great waste of support materials such as bolts. However, blindly reducing the number of anchor bolts can easily lead to roof accidents. It is necessary to accurately test the force of the anchor bolts and comprehensively evaluate their bearing conditions. The anchor dynamometer is a monitoring device used to measure the force of the anchor in the rock of the roadway. Determine the stress peak value and change of the surrounding rock of the roadway during the active period and the stable period, and then select the type and quantity of the bolt installed in a targeted manner. Therefore, the bolt dynamometer can accurately and conveniently measure the force of the bolt, which is very important for the coal mine roadway. Support selection is of great significance. The existing bolt dynamometer technology has the following problems: the protection performance of the bolt dynamometer in the industry is poor, and it is easy to damage the equipment due to the interference of external factors, thus causing unnecessary troubles; the equipment in the industry has a single function , can only simply display the measured tension, and does not have functions such as signal transmission and tension overload alarm, which leads to low applicability of the equipment.

Contents of the invention

The object of the present invention is to provide a dynamometer equipped with protective cover internal parts that are not easily damaged, the dynamometer can perform external data transmission on the tension signal, and the dynamometer can alarm the tension of the overload in the rock formation. Monitoring and early warning devices.

In order to achieve the above object, the present invention provides the following technical solutions: a monitoring and early warning device for the tensile deformation of the anchor rod in the rock formation, including a stress sensor, and a protective sleeve is installed on the outer wall of the stress sensor; Leads are installed outside the lead; the end of the lead is connected with a mounting plate; the outer wall of the protective sleeve is fixed with a protective shell; the lead and the mounting plate are located in the protective shell; the middle inner side of the stress sensor The wall is fixedly sleeved with a convex plate; the outer wall of the protective case is fixedly installed with a signal converter and a signal transmitter; the inner bottom of the protective case is symmetrically fixed with a storage battery; the outer wall of the protective case is also fixedly installed There are alarm horns, early warning red lights, early warning spring lights and early warning green lights; the surface of the mounting plate is also embedded with a display screen and a controller; the surface of the raised plate is evenly spaced and fixedly installed with vertical plates; A rotating shaft is fixedly installed on the upper end; a rotating cover plate is connected and installed on the rotating shaft; clamping plates are fixedly installed on the surface of the convex plate at uniform intervals and symmetrically; clamping blocks are clamped and installed between the clamping plates.

As a further improvement of the present invention, a power switch, a warning light reset button and a horn reset button are fixedly installed on the controller.

As a further improvement of the present invention, a telescopic rod is fixed horizontally on the front side wall of the block; a push plate is fixedly mounted on the front end of the telescopic rod; a spring is sleeved on the telescopic rod.

As a further improvement of the present invention, a signal transmission line is connected between the stress sensor and the signal converter; a signal transmission line is connected between the signal converter and the signal transmitter.

As a further improvement of the present invention, the stress sensor transmits the original stress signal to the signal converter through the signal transmission line; the signal converter transmits the converted data to the signal transmitter through the signal transmission line; the signal transmitter converts The final signal is sent to an external signal receiving device.

As a further improvement of the present invention, a signal transmission line is connected between the alarm horn and the controller; and a signal transmission line is connected between the warning red light, the warning yellow light and the warning green light and the controller.

Compared with the prior art, the beneficial effects of the present invention are: the stress sensor of the technical solution is provided with a raised disc, the raised disc is provided with a vertical plate, a clamping plate and a clamping block, and the clamping block is provided with a telescopic rod, a spring and a push By changing the different positions of the clamping blocks between the clamping plates, the push plate can be clamped with anchor rods of different diameters, which can effectively improve the use range of the equipment; the vertical plate is provided with a rotating shaft and a rotating cover plate, Cover the rotating cover on the clamping plate through the rotating shaft, so as to avoid the falling of the clamping block; the protective sleeve of this technical solution is provided with a protective shell, which can effectively prevent the internal parts from being damaged by the impact of foreign objects ; The protective shell of this technical solution is provided with a signal converter and a signal transmitter, the original data collected by the stress sensor can be converted through the signal converter, and then the signal transmitter sends the converted signal through the line, so that it can be more It is convenient for the staff to carry out statistics and management of the data; the protective shell is equipped with an alarm horn, and when the stress is overloaded, the alarm horn can emit a warning sound to remind the staff; the protective shell is also equipped with early warning red lights, early warning yellow lights and early warning green lights , through the lighting of different warning lights, it is more convenient to intuitively know whether the tension is within the safe range; the installation plate of this technical solution is provided with a display screen and a controller, and the display screen can facilitate viewing of the tension value; the controller can facilitate data exchange. Conversion and regulation of internal equipment.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the present invention.

Fig. 2 is a schematic diagram of the enlarged structure of the installation disk of the present invention.

Fig. 3 is a schematic diagram of the enlarged structure of the raised plate of the present invention.

In the figure: 1, stress sensor; 2, protective sleeve; 3, wire; 4, mounting plate; 5, protective shell; 6, convex plate; 7, signal converter; 8, signal transmitter; 9, battery; 10 1. Alarm horn; 11. Red warning light; 12. Yellow warning light; 13. Green warning light; 14. Display screen; 15. Controller; 16. Power switch; 17. Warning light reset button; 18. Horn reset button; 20 , rotating shaft; 21, rotating cover plate; 22, clamping plate; 23, clamping block; 24, telescopic rod; 25, push plate; 26, spring;

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to Figures 1-3, the present invention provides a technical solution: a monitoring and early warning device for the tensile deformation of the rock bolt in the rock formation, including a stress sensor 1, and a protective sleeve 2 is installed on the outer wall of the stress sensor 1; The sensor 1 is led out and installed with a wire 3; the end of the wire 3 is connected with a mounting plate 4; the outer wall of the protective sleeve 2 is fixed with a protective shell 5; the wire 3 and the mounting plate 4 are located in the protective shell 5; the stress sensor The middle inner side wall of 1 is fixedly sleeved with a convex plate 6; the outer wall of the protective shell 5 is fixedly installed with a signal converter 7 and a signal transmitter 8; An alarm horn 10, an early warning red light 11, an early warning reed light 12 and an early warning green light 13 are also fixedly installed on the outer wall; a display screen 14 and a controller 15 are also embedded in the surface of the mounting plate 4; There is a vertical plate 19; the upper end of the vertical plate 19 is fixedly equipped with a rotating shaft 20; the rotating shaft 20 is connected with a rotating cover plate 21; Clamping block 23 is installed; Controller 15 is fixedly equipped with power switch 16, warning light reset button 17 and horn reset button 18; A push plate 25 is fixedly installed; a spring 26 is sleeved on the telescopic rod 24; a signal transmission line is connected between the stress sensor 1 and the signal converter 7; a signal transmission line is connected between the signal converter 7 and the signal transmitter 8; the stress The sensor 1 transmits the original stress signal to the signal converter 7 through the signal transmission line; the signal converter 7 transmits the converted data to the signal transmitter 8 through the signal transmission line; the signal transmitter 8 sends the converted signal to an external signal receiver Equipment; a signal transmission line is connected between the alarm horn 10 and the controller 15;

When it is necessary to measure the stress of the anchor rod, first adjust the clamping block 23 on the clamping plate 22 to make it easy to clamp the anchor rod. Fasten the nut to fix the device on the anchor rod. At this time, the stress sensor 1 will transmit the collected stress signal to the controller 15 through the wire 3, and the controller 15 will transmit the signal to the alarm horn 10, respectively, through the internal circuit. The warning red light 11, the warning yellow light 12, the warning green light 13 and the display screen 14, the display screen 14 will display the stress information in the form of numerical values, if the stress is too large, the alarm horn 10 and the warning red light 11 will give a warning reminder at the same time, If the stress is at a critical value, the early warning yellow light 12 will give a warning reminder, and if the stress is within the normal range, the early warning green light 13 will shine; at the same time, the stress sensor 1 will transmit the collected original signal to the signal converter 7 through the line , the signal converter 7 will transmit the converted signal to the signal transmitter 8 through the line, and finally the signal transmitter 8 will send the signal to an external signal receiving device, which is convenient for the staff to carry out information statistics.

The above are only preferred examples of the present invention, and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still understand the foregoing embodiments. Modifications to the technical solutions recorded, or equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (6)

1. The utility model provides an anchor rod tensile deformation volume monitoring early warning device in rock stratum which characterized in that: the stress sensor comprises a stress sensor (1), wherein a protective sleeve (2) is sleeved on the outer side wall of the stress sensor (1); the stress sensor (1) is externally provided with a lead (3) in a leading-out manner; the tail end of the lead (3) is connected with and provided with a mounting disc (4); the outer side wall of the protective sleeve (2) is fixedly provided with a protective shell (5); the lead (3) and the mounting disc (4) are both positioned in the protective shell (5); a convex disc (6) is fixedly sleeved on the inner side wall in the middle of the stress sensor (1); the outer side wall of the protective shell (5) is fixedly provided with a signal converter (7) and a signal emitter (8); the storage batteries (9) are symmetrically and fixedly mounted on the bottom surface inside the protective shell (5); the outer side wall of the protective shell (5) is also fixedly provided with an alarm horn (10), an early warning red light (11), an early warning reed light (12) and an early warning green light (13); the surface of the mounting disc (4) is also embedded with a display screen (14) and a controller (15); vertical plates (19) are uniformly and fixedly arranged on the surface of the convex disc (6) at intervals; a rotating shaft (20) is fixedly arranged at the upper end of the vertical plate (19); a rotary cover plate (21) is connected and mounted on the rotary shaft (20); clamping plates (22) are uniformly and symmetrically fixedly arranged on the surface of the convex disc (6) at intervals; clamping blocks (23) are clamped between the clamping plates (22).

2. The device for monitoring and warning the tensile deformation of the anchor rod in the rock stratum according to claim 1, is characterized in that: and a power switch (16), an early warning lamp reset button (17) and a horn reset button (18) are fixedly mounted on the controller (15).

3. The device for monitoring and warning the tensile deformation of the anchor rod in the rock stratum according to claim 1, is characterized in that: a telescopic rod (24) is horizontally and fixedly arranged on the front side wall of the clamping block (23); a push plate (25) is fixedly arranged at the front end of the telescopic rod (24); the telescopic rod (24) is sleeved with a spring (26).

4. The device for monitoring and warning the tensile deformation of the anchor rod in the rock stratum according to claim 1, is characterized in that: a signal transmission line is connected between the stress sensor (1) and the signal converter (7); and a signal transmission line is connected between the signal converter (7) and the signal emitter (8).

5. The device for monitoring and warning the tensile deformation of the anchor rod in the rock stratum according to claim 1, is characterized in that: the stress sensor (1) transmits an original stress signal to the signal converter (7) through a signal transmission line; the signal converter (7) transmits the converted data to the signal transmitter (8) through a signal transmission line; and the signal transmitter (8) transmits the converted signal to an external signal receiving device.

6. The monitoring and early warning device for the tensile deformation of the anchor rod in the rock stratum according to claim 1, characterized in that: a signal transmission line is connected between the alarm horn (10) and the controller (15); the early warning red light (11), the early warning yellow light (12) and the early warning green light (13) are connected with signal transmission lines between the controllers (15).

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