Sampling equipment for prospecting based on nuclear magnetic resonance method

Abstract

The sampling equipment comprises a sampling pipe and a hollow drill bit, the upper portion of the sampling pipe is in threaded connection with a fixing sleeve, the fixing sleeve is connected with an assembling rod through a connecting plate, the lower portion of the sampling pipe is in threaded connection with the hollow drill bit, and the inner diameter of the hollow drill bit is smaller than that of the sampling pipe. The connecting plate is further provided with a pushing assembly used for breaking off the rock core, the pushing assembly comprises an ejector rod, an ejector block is arranged on the lower portion of the ejector rod, the ejector block is provided with a protrusion correspondingly inserted between the rock core and the sampling pipe, the ejector block is further provided with an inclined face abutting against the upper end of the rock core, the ejector block moves downwards, and the inclined face pushes the upper end of the rock core. After the device is screwed into a rock stratum, a rock core is broken, sampling is convenient, the problem that a traditional rock core is not prone to breakage and inconvenient to take out is solved, in addition, the sampling pipe is split, the rock core can be taken out after being opened, and using and assembling are convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to sampling equipment technical field, concretely is a kind of sampling equipment based on nuclear magnetic resonance method prospecting. BACKGROUND

[0002] Atomic resonance nuclear magnetic prospecting instrument can carry out geological exploration work of various elements from principle, its physical principle is: let atomic nucleus spin motion occur energy level transition, need provide the energy required for atomic nucleus to jump, this energy is usually provided by external radio frequency field, when the external radio frequency frequency is same as the atomic nucleus spin motion frequency, the energy of radio frequency field can be effectively absorbed by atomic nucleus, provides help for energy level transition.Therefore certain specific atomic nucleus, in given external magnetic field, only absorb the energy provided by specific radio frequency field, so that nuclear magnetic resonance signal is formed.After stopping radio frequency pulse excitation, atomic nucleus releases radio signal according to specific frequency, and releases absorbed energy, at this time, receiver is collected, through Fourier transform analysis to the collected data according to magnetic field gradient etc.Element, determine its three-dimensional space position relative to working base point transmitter, this is called nuclear magnetic resonance prospecting method.

[0003] Using nuclear magnetic resonance prospecting method to delineate ore body range in mining area, and using prospecting engineering to verify the delineated range, i.e. taking core in delineated range to carry out physical property analysis, through result comparison, to verify the feasibility and accuracy of nuclear magnetic resonance prospecting method in mining area prospecting, therefore need to use sampling equipment, the existing sampling method is to use core sampling rod to drill rock, but in the use process, core end is not easy to break automatically, need to exert vibration or external force, sampling is inconvenient, after drilling is completed, traditional way is to pour out rock sample, not complete core sample, not conducive to analysis. UTILITY MODEL CONTENT

[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art, provide a sampling equipment based on nuclear magnetic resonance method prospecting, realize the breaking of core, facilitate sampling, solve the problem that traditional core is not easy to break and is inconvenient to take out, in addition, sampling tube is split type, after opening, core can be taken out, convenient to use and assemble, can effectively solve the problems in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of sampling equipment based on nuclear magnetic resonance method prospecting, including sampling tube and hollow drill bit, the upper portion of sampling tube is threadedly connected with fixed sleeve, fixed sleeve is connected with assembly rod by connecting plate, the lower portion of sampling tube is threadedly connected hollow drill bit, the inner diameter of hollow drill bit is less than the inner diameter of sampling tube, connecting plate is also equipped with pusher assembly for breaking core, and pusher assembly includes push rod, the lower portion of push rod is equipped with top block, and top block has protrusion corresponding to insert between core and sampling tube, top block also has inclined surface that is in contact with the upper end of core, and top block moves down, and its inclined surface pushes the upper end of core.

[0006] Preferably, the connecting plate is provided with a through hole for the push rod to pass through, and the connecting plate is connected with the push rod by a split pin.

[0007] Preferably, the push rod is further threadedly connected with a nut, and the nut is in contact with the upper portion of the connecting plate.

[0008] Preferably, the connecting plate is in the shape of a cross, the center of the connecting plate is fixedly connected with the assembly rod, and the assembly rod is connected with an external driving device.

[0009] Preferably, the sampling tube is a split type pipe body, and the sampling tube includes at least two arc-shaped shells surrounding a circular pipe.

[0010] Preferably, the side surface of the top block is an arc surface that is adapted to the inner wall of the sampling tube.

[0011] Compared with the prior art, the utility model has the beneficial effects that: the external driving device drives the assembly rod to rotate, the assembly rod drives the hollow drill bit to rotate through the sampling tube, the stratum is rotated into, the external driving device is separated from the assembly rod after being rotated into, an external force is applied to the pusher assembly, i.e. the push rod is hammered, the push rod pushes the top block, due to the effect of the inclined surface, the inclined surface extrudes the core, the core is broken, sampling is facilitated, in addition, the sampling tube is a split type, the core can be taken out after being opened, and the utility model is convenient to use and assemble. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 It is a sectional view of the utility model;

[0014] Figure 3 It is a structural schematic diagram of each component of the utility model;

[0015] Figure 4 It is a structural schematic diagram of the pusher assembly of the utility model;

[0016] In the figure: 1 assembly rod, 2 connecting plate, 2.1 split pin, 3 fixing sleeve, 4 sampling tube, 4.1 arc-shaped shell, 5 hollow drill bit, 6 pushing assembly, 6.1 push rod, 6.2 nut, 6.3 push block, 6.31 inclined surface, 6.32 protrusion, 6.33 arc surface. DETAILED DESCRIPTION

[0017] The utility model can be explained in detail through the following examples, the purpose of the utility model is to protect all technical improvements within the scope of the utility model, in the description of the utility model, it needs to be understood that, if there are terms "upper", "lower", "front", "rear", "left", "right" and the like indicate the orientation or position relationship, only corresponds to the drawing of the application, in order to facilitate the description of the utility model, and not indicate or imply that the device or element must have a particular orientation.

[0018] Please refer to Figures 1-4 The utility model provides the following technical scheme:

[0019] Example 1: a kind of sampling equipment based on nuclear magnetic resonance method prospecting, including sampling tube 4 and hollow drill bit 5, the upper portion of sampling tube 4 is screw connected with fixed sleeve 3, fixed sleeve 3 is connected assembly rod 1 by connecting plate 2, the lower portion of sampling tube 4 is screw connected hollow drill bit 5, the inner diameter of hollow drill bit 5 is less than the inner diameter of sampling tube 4, connecting plate 2 is further provided with pushing assembly 6 for breaking core, pushing assembly 6 includes push rod 6.1, the lower portion of push rod 6.1 is provided with push block 6.3, push block 6.3 has protrusion 6.32 corresponding to insert between core and sampling tube 4, push block 6.3 also has inclined surface 6.31 abutting with the upper end of core, push block 6.3 moves down, and its inclined surface 6.31 pushes the upper end of core;

[0020] Connecting plate 2 is cross-shaped, the center of connecting plate 2 is fixedly connected with assembly rod 1, and assembly rod 1 is connected with external driving equipment;

[0021] It can be understood that the external driving equipment drives assembly rod 1 to rotate, assembly rod 1 drives hollow drill bit 5 to rotate through sampling tube 4, realizes that rock stratum is rotated into, after rotating in, external driving equipment is separated from assembly rod 1, and external force is applied to pushing assembly 6, i.e. hammering push rod 6.1, push rod 6.1 pushes push block 6.3, and the protrusion 6.32 of push block 6.3 enters between core and sampling tube 4, along with the movement of push block 6.3 down, due to the action of inclined surface 6.31, inclined surface 6.31 extrudes core, i.e. load is applied to the upper end of core to make the lower part thereof break, breaking of core is realized, and sampling is facilitated, the problem that traditional core is not easy to break and is inconvenient to take out is solved.

[0022] In the embodiment 2, the connecting plate 2 is provided with a through hole through which the top rod 6.1 passes, the connecting plate 2 is connected with the top rod 6.1 through the split pin 2.1, and the connecting plate 2 and the top rod 6.1 are both provided with a through hole through which the split pin 2.1 passes; the shank of the top rod 6.1 is further threadedly connected with a nut 6.2, the nut 6.2 abuts against the upper portion of the connecting plate 2, the top rod 6.1 is connected with the connecting plate 2 through the split pin 2.1 when the assembly rod 1 rotates, so as to avoid being pulled out during the rotation, or the nut 6.2 is used for fixing, the split pin 2.1 is pulled out when the top rod 6.1 is lowered, and then the nut 6.2 is unscrewed.

[0023] In the embodiment 3, the sampling pipe 4 is a split pipe body, the sampling pipe 4 comprises at least two arc-shaped shells 4.1 surrounding a circular pipe, the sampling pipe 4 is separated from the hollow drill bit 5 through the fixing sleeve 3, and then the sampling pipe 4 can be opened to facilitate the removal of the core.

[0024] In addition, the side surface of the top block 6.3 is an arc surface 6.33 matched with the inner wall of the sampling pipe 4, the arc surface 6.33 is matched with the inner wall of the sampling pipe 4, and the arc surface 6.33 plays a guiding role.

[0025] The parts not described in the utility model are prior art, and for those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-limiting, and all changes falling within the meaning and scope of equivalent elements are intended to be included in the utility model.

Claims

1. A sampling device for mineral exploration based on nuclear magnetic resonance, comprising a sampling tube (4) and a hollow drill bit (5), characterized in that: The upper part of the sampling tube (4) is threaded with a fixing sleeve (3), and the fixing sleeve (3) is connected to the assembly rod (1) through the connecting plate (2). The lower part of the sampling tube (4) is threaded with a hollow drill bit (5). The inner diameter of the hollow drill bit (5) is smaller than the inner diameter of the sampling tube (4). The connecting plate (2) is also provided with a jacking assembly (6) for breaking the rock core. The jacking assembly (6) includes a jacking rod (6.1). The lower part of the jacking rod (6.1) is provided with a jacking block (6.3). The jacking block (6.3) has a protrusion (6.32) that is inserted between the rock core and the sampling tube (4). The jacking block (6.3) also has an inclined surface (6.31) that abuts against the upper end of the rock core. The jacking block (6.3) moves down, and its inclined surface (6.31) pushes the upper end of the rock core.

2. The sampling device for mineral exploration based on nuclear magnetic resonance as described in claim 1, characterized in that: The connecting plate (2) is provided with a through hole for the top rod (6.1) to pass through. The connecting plate (2) is connected to the top rod (6.1) by a cotter pin (2.1). Both the connecting plate (2) and the top rod (6.1) are provided with a through hole for the cotter pin (2.1) to pass through.

3. A sampling device for mineral exploration based on nuclear magnetic resonance as described in claim 1, characterized in that: The top rod (6.1) is also threaded with a nut (6.2), which abuts against the upper part of the connecting plate (2).

4. A sampling device for mineral exploration based on nuclear magnetic resonance as described in claim 1, characterized in that: The connecting plate (2) is cross-shaped, and the center of the connecting plate (2) is fixedly connected to the assembly rod (1). The assembly rod (1) is connected to the external drive device.

5. A sampling device for mineral exploration based on nuclear magnetic resonance as described in claim 1, characterized in that: The sampling tube (4) is a split tube body, and the sampling tube (4) includes at least two arc-shaped shells (4.1) that form a circular tube.

6. A sampling device for mineral exploration based on nuclear magnetic resonance as described in claim 1, characterized in that: The side of the top block (6.3) is an arc-shaped surface (6.33) that is adapted to the inner wall of the sampling tube (4).

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