Drilling stress meter
By introducing guide components and elastic connection components into the drilling stress gauge, the problem of poor level during drilling stress gauge installation is solved, and more accurate stress monitoring is achieved.
Patent Information
- Application Number
- CN202421230488.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-05-31
AI Technical Summary
In the prior art, the drilling stress gauge cannot guarantee the installation level during installation, resulting in large errors in monitoring results and even monitoring errors.
A drilling stress gauge is designed, including a stress gauge body, a guide assembly and an elastic connection assembly. The guide assembly is arranged on the side of the stress gauge body, and presses it toward the side wall of the monitoring hole through the elastic connection assembly, making it abutting with the side wall, ensuring that the stress gauge moves in a direction parallel to the axial direction of the monitoring hole.
Through this design, the installation level of the drilling stress gauge is improved, monitoring errors are reduced, and the accuracy of monitoring results is ensured.
Smart Images
Figure CN222481675U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of drilling stress monitoring, in particular to a drilling stress meter. Background Art
[0002] Mine stress monitoring is to install borehole stress gauges during the mining process and analyze the data to effectively support and protect the next section of the working face. However, when installing the borehole stress gauge, the horizontality of the borehole stress gauge cannot be grasped, which leads to large errors in the monitoring results and even monitoring errors. Therefore, how to improve the installation horizontality of the borehole stress gauge when installing the borehole stress gauge is an urgent problem to be solved in the industry. Utility Model Content
[0003] The utility model provides a drilling stress gauge, which is used to solve the defect in the prior art that the drilling stress gauge cannot ensure the installation horizontality during installation.
[0004] The utility model provides a drilling stress gauge, comprising a stress gauge body, a guide assembly and an elastic connection assembly; the stress gauge body is used to collect stress data; the guide assembly is arranged on the side of the stress gauge body, and an installation gap is formed between the guide assembly and the stress gauge body; the elastic connection assembly is arranged in the installation gap, and the two ends of the elastic connection assembly are respectively connected to the stress gauge body and the guide assembly, and are used to press the guide assembly against the side wall of the monitoring hole, so that the guide assembly abuts against the side wall of the monitoring hole.
[0005] According to the drilling stress gauge provided by the utility model, the elastic connection assembly includes a connecting piece and a first elastic piece; the connecting piece is detachably connected to the stress gauge body; the first elastic piece is arranged between the connecting piece and the guide assembly, and the two ends of the first elastic piece are respectively connected to the connecting piece and the guide assembly, so as to press the guide assembly toward the side wall of the monitoring hole.
[0006] According to the drilling stress gauge provided by the utility model, the stress gauge body forms a limiting groove; the connecting member includes a connecting plate and an insert plate; the connecting plate is connected to one end of the first elastic member on a side facing the guide assembly; the insert plate is vertically connected to the connecting plate; and the side of the insert plate away from the connecting plate is arranged in the limiting groove.
[0007] The drilling stress gauge provided by the utility model comprises two insert plates, which are arranged along the width direction of the stress gauge body, and are respectively connected to two opposite edges of the connecting plate, and the insert plates correspond to the limiting grooves one by one.
[0008] According to the drilling stress gauge provided by the utility model, the stress gauge body is provided with the limiting groove along the length direction of the stress gauge body.
[0009] According to the drilling stress gauge provided by the utility model, a ball is arranged on the side of the guide component away from the elastic connection component, and the rolling direction of the ball is parallel to the length direction.
[0010] According to the drilling stress gauge provided by the utility model, the guide assembly includes a baffle; the baffle is an arc-shaped structure, the concave surface of the baffle is connected to the elastic connection assembly, and the ball is arranged on the side of the baffle away from the elastic connection assembly.
[0011] According to the drilling stress gauge provided by the utility model, the baffle is provided with at least two rows of ball groups, and the two rows of ball groups are arranged around the length direction; the ball group includes at least two balls, and the two balls are arranged along the length direction.
[0012] According to the drilling stress gauge provided by the utility model, the baffle is a rubber plate or a silicone plate.
[0013] According to the drilling stress gauge provided by the utility model, the stress gauge body includes an oil pressure pillow stress gauge and a shell; the shell has a accommodating cavity inside, and the shell is formed with a first opening and a second opening; the shell is connected to the elastic connection component; the oil pressure pillow stress gauge is used to collect stress data, and the oil pressure pillow stress gauge has a head and a tail; the head corresponds to the first opening, and the tail corresponds to the second opening, so that the integrated steel wire of the tail passes through the second opening.
[0014] The borehole stress gauge provided by the utility model can realize the collection of stress data in the monitoring hole by setting the stress gauge body, and can also transmit the stress data to the comprehensive mining working face. Through the analysis of stress data, the next section of the comprehensive mining working face can be effectively supported and protected. By setting a guide component on the side of the stress gauge body, and connecting the stress gauge body with the guide component by setting an elastic connection component, in the process of installing the borehole stress gauge in the monitoring hole, the elastic connection component can press the guide component to the side wall of the detection hole, so that the side of the guide component away from the elastic connection component abuts against the side wall of the monitoring hole, ensuring that the borehole stress gauge always moves in a direction parallel to the axial direction of the monitoring hole, avoiding the borehole stress gauge from moving in a direction deviating from the axial direction, improving the installation level of the borehole stress gauge, and solving the problem that the borehole stress gauge in the prior art cannot ensure the installation level during installation. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0016] Figure 1 The utility model is a schematic diagram of the assembly structure of the drilling stress meter.
[0017] Figure 2 The utility model is a schematic diagram of the assembly structure of the guide component and the elastic connection component of the drilling stress gauge provided by the utility model.
[0018] Figure 3 It is a structural schematic diagram of the stress gauge body of the drilling stress gauge provided by the utility model.
[0019] Reference numerals:
[0020] 100. Strain gauge body; 110. Oil pressure pillow stress gauge; 111. Head; 112. Tail; 113. Integrated steel wire; 120. Housing; 121. Clamp; 122. First opening; 123. Second opening; 124. Limiting groove.
[0021] 200, guide assembly; 210, ball bearing; 220, baffle.
[0022] 300, elastic connection assembly; 310, connecting member; 311, connecting plate; 312, plug plate; 320, first elastic member. DETAILED DESCRIPTION
[0023] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.
[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.
[0026] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0027] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.
[0028] Combine the following Figures 1 to 3 The drilling stress gauge of the utility model is described in detail. Figure 1It is a schematic diagram of the assembly structure of the drilling stress gauge provided by the utility model; Figure 2 It is a schematic diagram of the assembly structure of the guide assembly and the elastic connection assembly of the drilling stress gauge provided by the utility model; Figure 3 It is a structural schematic diagram of the stress gauge body of the drilling stress gauge provided by the utility model.
[0029] like Figure 1 As shown, a specific embodiment of the utility model provides a drilling stress gauge, which includes a stress gauge body 100 , a guide assembly 200 and an elastic connection assembly 300 .
[0030] The stress gauge body 100 is used to collect stress data; the guide assembly 200 is arranged on the side of the stress gauge body 100 and forms an installation gap with the stress gauge body 100; the elastic connection assembly 300 is arranged in the installation gap, and the two ends of the elastic connection assembly 300 are respectively connected to the stress gauge body 100 and the guide assembly 200, and are used to press the guide assembly 200 against the side wall of the monitoring hole so that the guide assembly 200 abuts against the side wall of the monitoring hole.
[0031] In this embodiment, by setting the stress gauge body 100, it is possible to collect stress data in the monitoring hole, and also transmit the stress data to the comprehensive mining face. By analyzing the stress data, effective support and protection can be provided for the next section of the comprehensive mining face. By setting the guide assembly 200 on the side of the stress gauge body 100, and connecting the stress gauge body 100 with the guide assembly 200 by setting the elastic connection assembly 300, in the process of installing the borehole stress gauge in the monitoring hole, the elastic connection assembly 300 can press the guide assembly 200 against the side wall of the detection hole, so that the side of the guide assembly 200 that is away from the elastic connection assembly 300 abuts against the side wall of the monitoring hole, ensuring that the borehole stress gauge always moves in a direction parallel to the axial direction of the monitoring hole, avoiding the borehole stress gauge from moving in a direction deviating from the axial direction, improving the installation level of the borehole stress gauge, and solving the problem that the borehole stress gauge in the prior art cannot ensure the installation level during installation.
[0032] In addition, by providing the elastic connection assembly 300, the borehole stress gauge of this embodiment can also be applied to stress monitoring of different hole sizes and different geological conditions, thereby expanding the application scope of the borehole stress gauge.
[0033] It is understandable that the number of guide assemblies 200 can be one or at least two. When the number of guide assemblies 200 is at least two, the guide assemblies 200 are arranged around the length direction of the stress gauge body 100. Preferably, a plurality of guide assemblies 200 are evenly arranged around the length direction of the stress gauge body 100. Specifically, when the number of guide assemblies 200 is two, the two guide assemblies 200 are symmetrically arranged on the sides of the stress gauge body 100. When the number of guide assemblies 200 is three, the three guide assemblies 200 are evenly distributed on the sides of the stress gauge body 100, and a 120° angle is formed between two adjacent guide assemblies 200.
[0034] In some embodiments, the elastic connection components 300 correspond to the guide components 200 one by one. The number of the elastic connection components 300 is equal to the number of the guide components 200.
[0035] In some embodiments, the elastic connection assembly 300 includes a connection member 310 and a first elastic member 320 .
[0036] Among them, the connecting member 310 is detachably connected to the stress gauge body 100; the first elastic member 320 is arranged between the connecting member 310 and the guide assembly 200, and the two ends of the first elastic member 320 are respectively connected to the connecting member 310 and the guide assembly 200, and are used to press the guide assembly 200 toward the side wall of the monitoring hole.
[0037] In this embodiment, by providing a connecting member 310 detachably connected to the strain gauge body 100, on the one hand, the first elastic member 320 is connected to the strain gauge body 100, thereby increasing the contact area between the first elastic member 320 and the strain gauge body 100 and improving the installation stability. On the other hand, it is convenient to replace the elastic connection component 300 and the guide component 200 according to actual needs, thereby expanding the application scope of the drilling stress gauge of this embodiment.
[0038] Specifically, the first elastic member 320 may be a spring or a rubber block.
[0039] It is understandable that any existing structure capable of realizing a detachable connection function may be used to connect the connector 310 to the strain gauge body 100 , such as a snap-on structure.
[0040] In some other embodiments, the elastic connection assembly 300 includes a second elastic member; two ends of the second elastic member are respectively connected to the strain gauge body 100 and the guide assembly 200, and are used to press the guide assembly 200 toward the side wall of the monitoring hole. The second elastic member can be connected to the strain gauge body 100 by welding or gluing.
[0041] In some embodiments, the strain gauge body 100 forms a limiting groove 124 ; the connecting member 310 includes a connecting plate 311 and an inserting plate 312 .
[0042] Among them, the side of the connecting plate 311 facing the guide assembly 200 is connected to one end of the first elastic member 320; the plug plate 312 is vertically connected to the connecting plate 311; and the side of the plug plate 312 away from the connecting plate 311 is arranged in the limiting groove 124. By providing the connecting plate 311, a mounting position can be provided for the first elastic member 320. By providing the plug plate 312, a detachable connection between the connecting member 310 and the strain gauge body 100 can be achieved.
[0043] It can be understood that the clamping force of the limiting groove 124 on the plug board 312 can prevent the plug board 312 from falling, and at the same time, when the plug board 312 is manually pulled out, the plug board 312 can be pulled out of the limiting groove 124.
[0044] In some embodiments, two plug plates 312 are included, and the two plug plates 312 are arranged along the width direction of the strain gauge body 100. The two plug plates 312 are respectively connected to the two opposite edges of the connecting plate 311, and the plug plates 312 correspond to the limiting grooves 124 one by one. Specifically, the two plug plates 312 are respectively arranged at the upper edge and the lower edge of the connecting plate 311. By providing two plug plates 312, the installation stability of the elastic connection assembly 300 can be further improved.
[0045] Furthermore, in the reverse direction of the length, a limiting groove 124 is provided on the strain gauge body 100. Specifically, two limiting grooves 124 are provided on the left side of the strain gauge body 100, and the two limiting grooves 124 on the left side are arranged along the width direction. Two limiting grooves 124 are also provided on the right side of the strain gauge body 100, and the two limiting grooves 124 on the right side are also arranged along the width direction.
[0046] Specifically, the depth of the limiting groove 124 is 1 cm to 2 cm, the width of the limiting groove 124 is 2 cm to 3 cm, and 1 cm to 2 cm of intact parts are reserved at both ends of the limiting groove 124. In other words, the two ends of the limiting groove 124 are blind holes to prevent the plug board 312 from slipping out of the two ends of the limiting groove 124.
[0047] In a specific embodiment of the present invention, a ball 210 is disposed on a side of the guide assembly 200 away from the elastic connection assembly 300 , and a rolling direction of the ball 210 is parallel to a length direction of the strain gauge body 100 .
[0048] In this embodiment, by providing the ball 210, and the rolling direction of the ball 210 is parallel to the length direction of the strain gauge, not only can the friction resistance between the guide assembly 200 and the side wall of the monitoring hole be reduced, but also the drilling stress gauge will not rotate during installation, further ensuring the installation level of the drilling stress gauge.
[0049] In some embodiments, the length direction of the strain gauge body 100 is parallel to the central axis of the monitoring hole.
[0050] In some embodiments, the guide assembly 200 includes a baffle 220 ; the baffle 220 is an arc-shaped structure, the concave surface of the baffle 220 is connected to the elastic connection assembly 300 , and a ball 210 is provided on the side of the baffle 220 away from the elastic connection assembly 300 .
[0051] By providing the baffle 220 with an arc structure, the guide assembly 200 can be more suitable for monitoring the hole.
[0052] It is understandable that the number of the balls 210 is not limited in this embodiment.
[0053] Furthermore, the baffle 220 is a rubber plate or a silicone plate. When there is a small slope or a small bump on the side wall of the monitoring hole, the resistance to the ball 210 passing through can be small, and the ball 210 can pass through the small slope or the small bump with a small force, and the rubber plate or the silicone plate can be elastically deformed to ensure a smooth path.
[0054] In some embodiments, the baffle 220 is provided with at least two rows of ball groups, which are arranged along the length direction; the ball group includes at least two balls 210, which are arranged along the length direction. It can not only play a guiding role to prevent the drilling stress gauge from rotating, but also make the appearance beautiful.
[0055] like Figure 3 As shown, in a specific embodiment of the present invention, the strain gauge body 100 includes an oil pressure pillow strain gauge 110 and a housing 120 .
[0056] Among them, the shell 120 has a accommodating cavity inside, and the shell 120 is formed with a first opening 122 and a second opening 123; the shell 120 is connected to the elastic connection component 300; the oil pressure pillow stress gauge 110 is used to collect stress data, and the oil pressure pillow stress gauge 110 has a head 111 and a tail 112; the head 111 corresponds to the first opening 122, and the tail 112 corresponds to the second opening 123, so that the integrated steel wire 113 of the tail 112 passes through the second opening 123.
[0057] By disposing the oil pressure pillow strain gauge 110 in the housing 120 , the housing 120 protects the oil pressure pillow strain gauge 110 and avoids directly connecting the elastic connection component 300 to the oil pressure pillow strain gauge 110 , thereby avoiding damaging the oil pressure pillow strain gauge 110 .
[0058] In addition, when installing the borehole stress gauge, the borehole stress gauge can be sent into the monitoring hole through the integrated steel wire 113 of the tail 112, avoiding the need for a push rod, thereby improving installation efficiency.
[0059] like Figure 3As shown, further, the housing 120 includes two clamping plates 121; the two clamping plates 121 are assembled to form a receiving cavity, and the two ends of the receiving cavity have a first opening 122 and a second opening 123. Two limiting grooves 124 are provided on each clamping plate 121, one of the two plugging plates 312 is connected to the limiting groove 124 of one clamping plate 121, and the other plugging plate 312 is connected to the limiting groove 124 of the other clamping plate 121, and the side of the plugging plate 312 away from the clamping plate 121 is vertically connected to the connecting plate 311, and the connecting plate 311 realizes the function of connecting the two clamping plates 121, avoiding the use of an additional connecting member 310 to connect the two clamping plates 121, thereby reducing the cost.
[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.
Claims
1. A borehole stress gauge, characterized in that: It comprises a strain gauge body (100), a guide assembly (200) and an elastic connection assembly (300); The stress gauge body (100) is used to collect stress data; the guide component (200) is arranged on the side of the stress gauge body (100) and forms an installation gap with the stress gauge body (100); the elastic connection component (300) is arranged in the installation gap, and the two ends of the elastic connection component (300) are respectively connected to the stress gauge body (100) and the guide component (200), and are used to press the guide component (200) against the side wall of the monitoring hole, so that the guide component (200) abuts against the side wall of the monitoring hole.
2. The borehole stress gauge according to claim 1, characterized in that: The elastic connection assembly (300) comprises a connection member (310) and a first elastic member (320); The connecting member (310) is detachably connected to the strain gauge body (100); the first elastic member (320) is arranged between the connecting member (310) and the guide assembly (200), and the two ends of the first elastic member (320) are respectively connected to the connecting member (310) and the guide assembly (200) for pressing the guide assembly (200) toward the side wall of the monitoring hole.
3. The borehole stress gauge according to claim 2, characterized in that: The strain gauge body (100) forms a limiting groove (124); the connecting member (310) comprises a connecting plate (311) and an inserting plate (312); The connecting plate (311) is connected to one end of the first elastic member (320) on one side facing the guide assembly (200); the plug plate (312) is vertically connected to the connecting plate (311); and the side of the plug plate (312) away from the connecting plate (311) is arranged in the limiting groove (124).
4. The borehole stress gauge according to claim 3, characterized in that: It comprises two inserting plates (312), which are arranged along the width direction of the stress gauge body (100), and the two inserting plates (312) are respectively connected to two opposite edges of the connecting plate (311), and the inserting plates (312) correspond one to one with the limiting grooves (124).
5. The borehole stress gauge according to claim 4, characterized in that: The stress gauge body (100) is provided with the limiting groove (124) along the length direction of the stress gauge body (100).
6. The borehole stress gauge according to claim 1, characterized in that: A ball (210) is arranged on a side of the guide component (200) facing away from the elastic connection component (300), and the rolling direction of the ball (210) is parallel to the length direction of the strain gauge body (100).
7. The borehole stress gauge according to claim 6, characterized in that: The guide assembly (200) comprises a baffle (220); The baffle (220) is an arc-shaped structure, the concave surface of the baffle (220) is connected to the elastic connection component (300), and the ball (210) is arranged on the side of the baffle (220) facing away from the elastic connection component (300).
8. The borehole stress gauge according to claim 7, characterized in that: The baffle (220) is provided with at least two rows of ball groups, and the two rows of ball groups are arranged around the length direction; the ball group includes at least two balls (210), and the two balls (210) are arranged along the length direction.
9. The borehole stress gauge according to claim 7, characterized in that: The baffle (220) is a rubber plate or a silicone plate.
10. The borehole stress gauge according to any one of claims 1 to 9, characterized in that: The stress gauge body (100) comprises an oil pressure pillow stress gauge (110) and a housing (120); The housing (120) has a receiving cavity inside, and the housing (120) is formed with a first opening (122) and a second opening (123); the housing (120) is connected to the elastic connection component (300); the oil pressure pillow stress gauge (110) is used to collect stress data, and the oil pressure pillow stress gauge (110) has a head (111) and a tail (112); the head (111) corresponds to the first opening (122), and the tail (112) corresponds to the second opening (123), so that the integrated steel wire (113) of the tail (112) passes through the second opening (123).
Citation Information
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