Rock core sampling and detecting device for coal mining

Abstract

The utility model discloses a rock core sampling and detecting device for coal mining, which belongs to the technical field of rock core detection and comprises a chute main body, and two groups of limiting devices for limiting a rock core and two groups of length measuring devices for pushing the rock core and measuring the length are mounted on the chute main body; the length measuring device comprises a pushing observation assembly, a synchronous driving assembly, two auxiliary winding assemblies and an accurate measuring assembly, the pushing observation assembly, the synchronous driving assembly, the auxiliary winding assemblies and the accurate measuring assembly are installed on the sliding groove body, and the pushing observation assembly is connected with the synchronous driving assembly. The synchronous driving assembly is connected with the auxiliary winding assembly and the accurate measuring assembly. Through the mode, the synchronous driving assembly drives and pushes the observation assembly to clamp the two ends of the rock core, the length of the rock core can be accurately measured in cooperation with limiting of the limiting device, operation is easy and convenient, the length of the rock core can be secondarily determined through arrangement of the accurate measurement assembly, and it is ensured that the measurement result is accurate.

Description

Technical Field

[0001] The utility model relates to the technical field of core detection, in particular to a core sampling and detection device for coal mining. Background Art

[0002] Before mining coal, in order to determine the coal seam thickness, distribution, grade and quality, a drilling rig is generally used to drill and obtain core samples. Coal data is obtained through testing and analysis of the core samples.

[0003] For example, Chinese patent application CN111896714A discloses a device for acquiring multiple physical parameters of a core and a method for measuring the same. The device includes a cylindrical, openable inner cylinder, a clamping device, a cylinder cover, a length adjustment device, a sensing device, a cylinder cover, and a circular patch. The inner cylinder is made of a non-metallic insulating material. The sensing device is used to detect one or more parameters of the core, including magnetic susceptibility, resistivity, density, mass, temperature, humidity, and P-wave velocity.

[0004] However, when the core multi-physical parameter acquisition device measures the lengths of cores of different sizes, the cores may deviate in the inner cylinder, thereby affecting the accuracy of the data.

[0005] Based on this, the utility model designs a core sampling and detection device for coal mining to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the prior art, the utility model provides a core sampling and detection device for coal mining.

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A core sampling and detection device for coal mining, comprising a chute body,

[0009] The chute body is equipped with two sets of limiting devices for limiting the core and a length measuring device for pushing the core and measuring the length;

[0010] The length measuring device includes a pushing and observing component for pushing the core and preliminarily observing the length, a synchronous driving component for driving the pushing and observing component to move, two auxiliary winding components for use with the synchronous driving component, and a precise measuring component for secondary determination of the core length. The pushing and observing component, the synchronous driving component, the auxiliary winding component, and the precise measuring component are installed on the slide body, the pushing and observing component is connected to the synchronous driving component, and the synchronous driving component is connected to the auxiliary winding component and the precise measuring component.

[0011] Furthermore, an arc-shaped groove for placing the core is provided at the upper end of the chute body, through holes for cooperating with the limiting device are provided on the front and rear sides of the chute body, a chute for cooperating with pushing the observation component is provided on the inner side of the chute body, and a through opening for cooperating with pushing the observation component is provided on the right end face of the chute body.

[0012] Furthermore, the two groups of limit devices are symmetrically arranged and installed on the front and rear sides of the slide main body, and each group of limit devices is composed of two limit devices. The limit devices include a rotating handle, a threaded rod and a universal ball. The rotating handle is located on the outside of the slide main body, and the end of the rotating handle close to the slide main body is fixedly connected to one end of the threaded rod, and the other end of the threaded rod passes through the slide main body and is fixedly connected to the outer shell of the universal ball. The threaded rod is threadedly connected to the slide main body, and the ball of the universal ball faces inward.

[0013] Furthermore, the pushing and observing assembly includes a push plate, an observation plate and a scale. The push plate is located at the right end of the slide main body and is slidingly connected to the slide main body in a limited manner. A through hole is provided on the push plate for the universal ball to pass through. The front end of the push plate is fixedly installed with an observation plate. The left side of the observation plate is flush with the left end face of the push plate. The scale is fixedly installed at the front end of the slide main body. The scale is set horizontally, and the scale zero point of the scale is flush with the inner wall of the left end of the slide main body.

[0014] Furthermore, the synchronous drive assembly includes a motor, a motor base plate, two connecting parts and a fixed base plate. The motor is fixedly installed on the upper end of the motor base plate, the output end of the motor passes through the motor base plate and is connected to the connecting part, the motor base plate and the fixed base plate are fixedly installed on the outer side of the left end of the slide body, the two connecting parts are symmetrically arranged front and back and installed on the slide body, and the connecting parts are connected to the push plate, the fixed base plate, the auxiliary winding assembly and the precise measurement assembly.

[0015] Furthermore, the connecting component includes a gear, a winding drum and a wire rope. The gear is rotatably installed at the lower end of the motor base plate, the lower end of the gear is fixedly connected to the winding drum, one end of the wire rope is fixedly installed on the outside of the winding drum, the other end of the wire rope passes through the slide groove body and is fixedly connected to the push plate, the wire rope is connected to the auxiliary winding assembly, the gears of the two connecting components are meshed and connected, the output end of the motor is fixedly connected to a gear, the lower end of one winding drum is connected to the precise measuring assembly, and the lower end of the other winding drum is rotatably connected to the fixed base plate.

[0016] Furthermore, the two auxiliary winding components are symmetrically arranged and installed at the left end of the slide main body. The auxiliary winding components include two auxiliary frames and an auxiliary groove wheel. The right ends of the two auxiliary frames are fixedly connected to the left end of the slide main body. The auxiliary groove wheel is rotatably installed between the two auxiliary frames. An annular groove for use with the wire rope is provided in the middle of the auxiliary groove wheel. The wire rope passes through the annular groove of the auxiliary groove wheel and is slidably connected to the auxiliary groove wheel.

[0017] Furthermore, the precise measurement component includes a base plate and a wire-pulling sensor component. The base plate is fixedly mounted on the left end of the slide body, and the wire-pulling sensor component is fixedly mounted on the upper end of the base plate. The output end of the wire-pulling sensor component is fixedly connected to the lower end of a winding disk. The axis of the output end of the wire-pulling sensor component coincides with the axis of the winding disk. The wire-pulling sensor component is the main part of the wire-pulling sensor, and the wire-pulling sensor is the existing technology.

[0018] Compared with the existing technology, the utility model has the following beneficial effects: 1. The synchronous driving component drives the observation component to clamp and fix the core at both ends, and the limit of the limit device can accurately measure the length of the core. The operation is simple and convenient. The core length can be determined twice by setting the precise measurement component to ensure the accuracy of the measurement result.

[0019] 2. The core is limited by the universal ball bearings on the front and rear sides to prevent the core from deviating in the arc groove of the chute body, which may cause large errors in the measurement results. At the same time, it can adapt to the use of cores of various sizes. The setting of the universal ball bearings allows the core to move freely left and right, avoiding the problem of being unable to move the measurement due to excessive limitation; the two sides of the push plate are driven synchronously by two steel wire ropes to avoid the problem of tilting caused by uneven force on the push plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be derived from these drawings without inventive effort.

[0021] Figure 1 A three-dimensional core sampling and detection device for coal mining in this utility model Figure 1 ;

[0022] Figure 2 This is a front view of a core sampling and detection device for coal mining according to the utility model;

[0023] Figure 3 This is a left side view of a core sampling and detection device for coal mining according to the utility model;

[0024] Figure 4 A three-dimensional core sampling and detection device for coal mining in this utility model Figure 2 ;

[0025] Figure 5 A three-dimensional core sampling and detection device for coal mining in this utility model Figure 3 .

[0026] The numbers in the figure represent:

[0027] 1. Slide body; 2. Limit device; 21. Rotating handle; 22. Threaded rod; 23. Universal ball; 3. Length measuring device; 31. Push observation assembly; 311. Push plate; 312. Observation plate; 313. Scale; 32. Synchronous drive assembly; 321. Motor; 322. Motor base plate; 323. Gear; 324. Reel; 325. Wire rope; 326. Fixed base plate; 33. Auxiliary reel assembly; 331. Auxiliary frame; 332. Auxiliary sheave; 34. Precision measurement assembly; 341. Base plate; 342. Wire pulley sensor component. DETAILED DESCRIPTION

[0028] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0029] The terms “left,” “right,” “front,” “back,” “up,” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0030] Example 1: In some embodiments, please refer to the accompanying drawings of the specification. Figure 1-Figure 5 A core sampling and detection device for coal mining, comprising a chute body 1,

[0031] The chute body 1 is equipped with two sets of limiting devices 2 for limiting the core position and a length measuring device 3 for pushing the core and measuring the length;

[0032] The length measuring device 3 includes a pushing and observing component 31 for pushing the core and preliminarily observing the length, a synchronous driving component 32 for driving the pushing and observing component 31 to move, two auxiliary winding components 33 for cooperating with the synchronous driving component 32, and a precise measuring component 34 for secondary determination of the core length. The pushing and observing component 31, the synchronous driving component 32, the auxiliary winding component 33 and the precise measuring component 34 are installed on the slide body 1, the pushing and observing component 31 is connected to the synchronous driving component 32, and the synchronous driving component 32 is connected to the auxiliary winding component 33 and the precise measuring component 34.

[0033] When the core sampling and detection device for coal mining is used normally, the core is placed on the inner side of the chute body 1, and the synchronous drive component 32 is started. The synchronous drive component 32 drives the observation component 31 to push the core so that the left side of the core is in contact with the inner wall of the left end of the chute body 1. The data of the observation component 31 and the precise measurement component 34 are observed and compared to determine the length of the core. The limit device 2 is used for limiting the core during the pushing process, and the auxiliary winding component 33 is used to assist the operation of the synchronous drive component 32. The synchronous drive component 32 drives the observation component 31 to clamp the core at both ends. The limit of the limit device 2 can accurately measure the length of the core. The operation is simple and convenient. The core length can be determined twice through the setting of the precise measurement component 34 to ensure accurate measurement results.

[0034] An arc-shaped groove for placing the core is opened at the upper end of the chute body 1, through holes for cooperating with the limit device 2 are opened on the front and rear sides of the chute body 1, a chute for cooperating with pushing the observation component 31 is opened on the inner side of the chute body 1, and a through opening for cooperating with pushing the observation component 31 is opened on the right end face of the chute body 1.

[0035] The two groups of limit devices 2 are symmetrically arranged and installed on the front and rear sides of the slide main body 1. Each group of limit devices 2 consists of two limit devices 2. The limit device 2 includes a rotating handle 21, a threaded rod 22 and a universal ball 23. The rotating handle 21 is located on the outside of the slide main body 1. The end of the rotating handle 21 close to the slide main body 1 is fixedly connected to one end of the threaded rod 22. The other end of the threaded rod 22 passes through the slide main body 1 and is fixedly connected to the outer shell of the universal ball 23. The threaded rod 22 is threadedly connected to the slide main body 1, and the ball of the universal ball 23 faces inward.

[0036] When the core sampling and detection device for coal mining is used normally, the core is placed on the inner side of the arc groove of the chute main body 1, and the rotating handle 21 is rotated. The rotating handle 21 drives the threaded rod 22 to rotate, and the threaded rod 22 drives the universal ball 23 to move inward so that the ball of the universal ball 23 fits the outer side of the core. The core is limited by the front and rear universal ball 23 to avoid the core from deviating in the arc groove of the chute main body 1, which causes a large error in the measurement result. At the same time, it can be adapted for use with cores of various sizes. The setting of the universal ball 23 allows the core to move freely left and right, avoiding the problem of being unable to move and measure due to excessive limitation.

[0037] The pushing and observing assembly 31 includes a push plate 311, an observation plate 312 and a scale 313. The push plate 311 is located at the right end of the slide main body 1 and is limitedly fitted and slidably connected to the slide main body 1. A through hole is opened on the push plate 311 for the universal ball 23 to pass through. The front end of the push plate 311 is fixedly installed with the observation plate 312. The left side of the observation plate 312 is flush with the left end face of the push plate 311. The scale 313 is fixedly installed at the front end of the slide main body 1. The scale 313 is horizontally set, and the scale zero point of the scale 313 is flush with the inner wall of the left end of the slide main body 1.

[0038] The synchronous drive assembly 32 includes a motor 321, a motor base plate 322, two connecting parts and a fixed base plate 326. The motor 321 is fixedly mounted on the upper end of the motor base plate 322. The output end of the motor 321 passes through the motor base plate 322 and is connected to the connecting part. The motor base plate 322 and the fixed base plate 326 are fixedly mounted on the outer side of the left end of the chute body 1. The two connecting parts are symmetrically arranged front and back and installed on the chute body 1. The connecting part is connected to the push plate 311, the fixed base plate 326, the auxiliary winding assembly 33 and the precise measurement assembly 34.

[0039] The connecting components include a gear 323, a winding drum 324 and a wire rope 325. The gear 323 is rotatably mounted on the lower end of the motor base plate 322. The lower end of the gear 323 is fixedly connected to the winding drum 324. One end of the wire rope 325 is fixedly mounted on the outside of the winding drum 324. The other end of the wire rope 325 passes through the slide groove body 1 and is fixedly connected to the push plate 311. The wire rope 325 is connected to the auxiliary winding assembly 33. The gears 323 of the two connecting components are meshed and connected. The output end of the motor 321 is fixedly connected to a gear 323. The lower end of a winding drum 324 is connected to the precise measurement assembly 34. The lower end of the other winding drum 324 is rotatably connected to the fixed base plate 326.

[0040] The two auxiliary winding components 33 are symmetrically arranged and installed at the left end of the slide main body 1. The auxiliary winding component 33 includes two auxiliary frames 331 and an auxiliary groove wheel 332. The right ends of the two auxiliary frames 331 are fixedly connected to the left end of the slide main body 1. The auxiliary groove wheel 332 is rotatably installed between the two auxiliary frames 331. An annular groove for cooperating with the wire rope 325 is provided in the middle of the auxiliary groove wheel 332. The wire rope 325 is slidably connected to the auxiliary groove wheel 332 through the annular groove of the auxiliary groove wheel 332.

[0041] The precise measurement component 34 includes a base plate 341 and a wire-pulling sensor component 342. The base plate 341 is fixedly mounted on the left end of the slide body 1. The wire-pulling sensor component 342 is fixedly mounted on the upper end of the base plate 341. The output end of the wire-pulling sensor component 342 is fixedly connected to the lower end of a winding disk 324. The axis of the output end of the wire-pulling sensor component 342 coincides with the axis of the winding disk 324. The wire-pulling sensor component 342 is the main part of the wire-pulling sensor, and the wire-pulling sensor is the existing technology.

[0042] When the core sampling and detection device for coal mining is used normally, the motor 321 is started, and the motor 321 drives a gear 323 to rotate. The two gears 323 are engaged to drive the two winding discs 324 to rotate in opposite directions. The two winding discs 324 respectively drive the two wire ropes 325 to reel. The two wire ropes 325 synchronously drive the push plate 311 to move to the left from both sides of the push plate 311. The push plate 311 pushes the core so that the left side of the core fits the inner wall of the left end of the chute body 1. The push plate 311 drives the observation plate 312 to move synchronously. The auxiliary groove wheel 332 assists the wire rope 325 to reel, and the wire sensing component When the winding disk 324 corresponding to the output end of 342 rotates, the output end of the wire-pulling sensor component 342 is driven to rotate synchronously. By observing the corresponding positions of the observation plate 312 and the scale 313, the core length can be preliminarily measured. Then, by observing the statistical data of the wire-pulling sensor component 342, the core length can be determined for a second time. The measurement is completed by comparing the two data. The two sides of the push plate 311 are synchronously driven by the two steel wire ropes 325 to avoid the problem of tilting caused by uneven force on the push plate 311. The accuracy of the data is ensured by the secondary data comparison between the observation plate 312 and the wire-pulling sensor component 342.

[0043] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention 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 will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A core sampling and detection device for coal mining, comprising a chute body (1), characterized in that: The chute body (1) is provided with two sets of position limiting devices (2) for limiting the position of the core and a length measuring device (3) for pushing the core and measuring the length; The length measuring device (3) comprises a pushing and observing component (31) for pushing a core and preliminarily observing its length, a synchronous driving component (32) for driving the pushing and observing component (31) to move, two auxiliary winding components (33) for cooperating with the synchronous driving component (32), and a precise measuring component (34) for secondary determination of the core length. The pushing and observing component (31), the synchronous driving component (32), the auxiliary winding component (33), and the precise measuring component (34) are mounted on the chute body (1), the pushing and observing component (31) is connected to the synchronous driving component (32), and the synchronous driving component (32) is connected to the auxiliary winding component (33) and the precise measuring component (34).

2. The core sampling and detection device for coal mining according to claim 1, characterized in that: The upper end of the chute body (1) is provided with an arc groove for placing the core, the front and rear sides of the chute body (1) are provided with through holes for use with the limit device (2), the inner side of the chute body (1) is provided with a chute for use with the push observation component (31), and the right end surface of the chute body (1) is provided with a through opening for use with the push observation component (31).

3. The core sampling and detection device for coal mining according to claim 2, characterized in that: The two groups of limiting devices (2) are symmetrically arranged and installed on the front and rear sides of the chute body (1). Each group of limiting devices (2) consists of two limiting devices (2). The limiting devices (2) include a rotating handle (21), a threaded rod (22) and a universal ball (23). The rotating handle (21) is located outside the chute body (1). One end of the rotating handle (21) close to the chute body (1) is fixedly connected to one end of the threaded rod (22). The other end of the threaded rod (22) passes through the chute body (1) and is fixedly connected to the outer shell of the universal ball (23). The threaded rod (22) is threadedly connected to the chute body (1), and the ball of the universal ball (23) faces inward.

4. The core sampling and detection device for coal mining according to claim 3, characterized in that: The pushing observation assembly (31) comprises a push plate (311), an observation plate (312) and a scale (313). The push plate (311) is located at the right end of the chute body (1) and is in limited position fit and sliding connection with the chute body (1). A through hole for the universal ball (23) to pass through is provided on the push plate (311). The front end of the push plate (311) is fixedly mounted with the observation plate (312). The left side of the observation plate (312) is flush with the left end face of the push plate (311). The scale (313) is fixedly mounted on the front end of the chute body (1). The scale (313) is horizontally arranged. The scale zero point of the scale (313) is flush with the inner side wall of the left end of the chute body (1).

5. The core sampling and detection device for coal mining according to claim 4, characterized in that: The synchronous drive assembly (32) comprises a motor (321), a motor base plate (322), two connecting components and a fixed base plate (326); the motor (321) is fixedly mounted on the upper end of the motor base plate (322); the output end of the motor (321) passes through the motor base plate (322) and is connected to the connecting component; the motor base plate (322) and the fixed base plate (326) are fixedly mounted on the outer side of the left end of the chute body (1); the two connecting components are symmetrically arranged front and back and mounted on the chute body (1); the connecting component is connected to the push plate (311), the fixed base plate (326), the auxiliary winding assembly (33) and the precise measurement assembly (34).

6. The core sampling and detection device for coal mining according to claim 5, characterized in that: The connecting component includes a gear (323), a winding disk (324) and a wire rope (325), wherein the gear (323) is rotatably mounted on the lower end of the motor base plate (322), the lower end of the gear (323) is fixedly connected to the winding disk (324), one end of the wire rope (325) is fixedly mounted on the outside of the winding disk (324), the other end of the wire rope (325) passes through the chute body (1) and is fixedly connected to the push plate (311), the wire rope (325) is connected to the auxiliary winding assembly (33), the gears (323) of the two connecting components are meshed and connected, the output end of the motor (321) is fixedly connected to a gear (323), the lower end of a winding disk (324) is connected to the precise measurement assembly (34), and the lower end of the other winding disk (324) is rotatably connected to the fixed base plate (326).

7. The core sampling and detection device for coal mining according to claim 6, characterized in that: The two auxiliary winding assemblies (33) are symmetrically arranged and installed at the left end of the chute main body (1). The auxiliary winding assembly (33) includes two auxiliary frames (331) and an auxiliary groove wheel (332). The right ends of the two auxiliary frames (331) are fixedly connected to the left end of the chute main body (1). The auxiliary groove wheel (332) is rotatably installed between the two auxiliary frames (331). An annular groove for matching with the wire rope (325) is provided in the middle of the auxiliary groove wheel (332). The wire rope (325) passes through the annular groove of the auxiliary groove wheel (332) and is slidably connected to the auxiliary groove wheel (332).

8. The core sampling and detection device for coal mining according to claim 7, characterized in that: The precise measurement assembly (34) includes a base plate (341) and a wire-pull sensing component (342), wherein the base plate (341) is fixedly mounted on the left end of the chute body (1), and the wire-pull sensing component (342) is fixedly mounted on the upper end of the base plate (341), and the output end of the wire-pull sensing component (342) is fixedly connected to the lower end of a winding reel (324), and the axis of the output end of the wire-pull sensing component (342) coincides with the axis of the winding reel (324).

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