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CN-224202866-U - Sample loading device for carbon rod electrode in arc direct-reading emission spectrometry

CN224202866UCN 224202866 UCN224202866 UCN 224202866UCN-224202866-U

Abstract

The utility model discloses a sample loading device for a carbon rod electrode in arc direct-reading emission spectrometry, which comprises a motor, a speed regulator, a rotating shaft, a handle and a sample loading tank for uniformly mixing a sample to be tested and a buffer, wherein an assembly cavity with one end penetrating is formed in the handle along the length direction, the bottom of the assembly cavity is provided with the motor, a power wire of the motor extends out of the assembly cavity and is connected with the speed regulator, the rotating shaft is assembled in the assembly cavity through a bearing and is connected with an output shaft of the motor through a spline, the other end of the rotating shaft extends out of the assembly cavity, and a chuck for assembling the carbon rod electrode is arranged, and can be inserted into the sample loading tank after the carbon rod electrode is assembled on the chuck. The utility model utilizes the motor, the speed regulator, the rotating shaft and the grip to mutually cooperate to form a rotating mechanism with controllable rotating speed to replace manual holding of the carbon rod electrode for rotary sample loading, thereby effectively reducing labor cost and simultaneously ensuring analysis and test efficiency.

Inventors

  • WANG JIASONG
  • LI GUOZHAN
  • ZHANG GUOLI

Assignees

  • 中国地质调查局天津地质调查中心(华北地质科技创新中心)

Dates

Publication Date
20260505
Application Date
20250523

Claims (5)

  1. 1. The sample loading device for the carbon rod electrode in the arc direct-reading emission spectrometry is characterized by comprising a motor (1), a speed regulator (2), a rotating shaft (3) and a handle (4), and a sample loading tank for uniformly mixing a sample to be tested and a buffer; The utility model discloses a handle, including handle (4), motor (1), speed regulator (2), bearing (5) are equipped with in assembly chamber (41), handle (4) have seted up one end along length direction and link up assembly chamber (41), the chamber end of assembly chamber (41) is equipped with motor (1), power cord (11) of motor (1) stretch out outside assembly chamber (41) and connect speed regulator (2), axis of rotation (3) assemble in assembly chamber (41) through bearing (5), and with the output shaft of motor (1) passes through spline connection, the other end of axis of rotation (3) stretches out outside assembly chamber (41), and is equipped with chuck (7) that are used for assembling carbon-point electrode (6), works as carbon-point electrode (6) are assembled back on chuck (7) can insert in the dress appearance jar.
  2. 2. The sample loading device for the carbon rod electrode in the arc direct-reading emission spectrometry according to claim 1, wherein the part of the handle (4) at the cavity bottom of the assembly cavity (41) is provided with an avoidance hole for the power line (11) to pass through.
  3. 3. The sample loading device for the carbon rod electrode in the arc direct-reading emission spectrometry according to claim 2, wherein the clamping head (7) comprises a connecting rod (71) and a clamping piece, the clamping piece comprises a plurality of clamping jaws (72) uniformly fixed at the end part of the connecting rod (71) along the circumferential direction, gaps are reserved between two adjacent clamping jaws (72), a plurality of clamping jaws (72) enclose a clamping groove, the carbon rod electrode (6) is detachably inserted into the clamping groove, a thread groove is formed in one end of the rotating shaft (3) far away from the motor (1), and the connecting rod (71) is screwed on the thread groove.
  4. 4. A sample loading device for a carbon rod electrode in arc direct-reading emission spectrometry according to claim 3, wherein the clamping head (7) further comprises a tensioning cap (73), the tensioning cap (73) is provided with tensioning holes (731) with two through ends, one end of each tensioning hole (731) is sleeved on the rotating shaft (3) and screwed after passing through the carbon rod electrode (6), the clamping groove and the connecting rod (71) in sequence, the diameter of the other end of each clamping groove is decreased progressively, and the diameter of the outer wall of the clamping groove is decreased progressively along the direction away from the carbon rod electrode (6) and is matched with the decreasing end of each tensioning hole (731).
  5. 5. The sample loading device for carbon rod electrodes in arc direct reading emission spectrometry according to any of claims 1-4, wherein the rotational speed of the motor (1) is less than 2r/s.

Description

Sample loading device for carbon rod electrode in arc direct-reading emission spectrometry Technical Field The utility model relates to the technical field of geological experiment measurement, in particular to a sample loading device for a carbon rod electrode in arc direct-reading emission spectrometry. Background The electric arc direct-reading emission spectrum is an inorganic analysis instrument which is usually prepared in geological mineral laboratories, is commonly used for measuring the content of elements such as silver, boron, tin and the like in geological samples such as rock, soil, water system sediments and the like, and is used for measuring an alternating-current electric arc-emission spectrometry (DZ/T0279.11-2016) in the published geological mineral industry standard section 11 of regional geochemical sample analysis method. The chemical analysis method matched with the instrument generally does not need to consume chemical reagents such as acid, alkali and the like, and has obvious environment-friendly characteristic. Therefore, in recent years, research reports of the instrument applied to accurate measurement of the content of copper, lead, zinc, molybdenum and other elements in geological samples are increasing. Although the chemical analysis method of the geological sample based on the arc direct-reading emission spectrum belongs to a typical green chemical analysis technology, the sample preparation process of the geological sample needs to consume more manpower and time. The current sample preparation usually comprises three steps of weighing, mixing and sample loading, wherein the weighing is the simplest, the mixing is realized by the automatic completion of a machine, and the sample loading also needs to be repeatedly loaded by an experimenter holding a carbon rod electrode to screw in the sample until the sample is filled, compacted and ground. The long-time repeated hand frock appearance process makes experimenter's hand soreness and pain, stiffness on the one hand can influence dress appearance efficiency, on the other hand also has increased disease risks such as hand muscle strain to experimenter. Disclosure of utility model The utility model provides a sample loading device for a carbon rod electrode in arc direct-reading emission spectrometry. In order to achieve the above purpose, the utility model adopts the following technical scheme: A sample loading device for a carbon rod electrode in arc direct-reading emission spectrometry comprises a motor, a speed regulator, a rotating shaft, a handle and a sample loading tank for uniformly mixing samples to be tested and buffering, wherein an assembly cavity with one through end is formed in the handle along the length direction, the bottom of the assembly cavity is provided with the motor, a power line of the motor extends out of the assembly cavity and is connected with the speed regulator, the rotating shaft is assembled in the assembly cavity through a bearing and is connected with an output shaft of the motor through a spline, the other end of the rotating shaft extends out of the assembly cavity, a chuck for assembling the carbon rod electrode is arranged, and the carbon rod electrode can be inserted into the sample loading tank after being assembled on the chuck. Preferably, the part of the handle at the bottom of the cavity of the assembly cavity is provided with a avoiding hole for the power line to pass through. Preferably, the chuck comprises a connecting rod and a clamping piece, the clamping piece comprises a plurality of clamping jaws uniformly fixed at the end part of the connecting rod along the circumferential direction, a gap is reserved between every two adjacent clamping jaws, a plurality of clamping jaws enclose a clamping groove, a carbon rod electrode is detachably inserted into the clamping groove, a thread groove is formed in one end, far away from the motor, of the rotating shaft, and the connecting rod is screwed on the thread groove, so that the chuck is convenient to replace. Preferably, the clamping head further comprises a tensioning cap, the tensioning cap is provided with tensioning holes with two ends being communicated, one end of each tensioning hole is sleeved with the carbon rod electrode, the clamping groove and the connecting rod in sequence and then sleeved on the rotating shaft and screwed, the end diameter of the other end of each tensioning hole is gradually decreased, the outer wall diameter of the clamping groove is gradually decreased along the direction away from the carbon rod electrode, and the outer wall diameter of the clamping groove is mutually matched with one end of each tensioning hole, so that the carbon rod electrode is firmly assembled on the clamping groove. Preferably, the rotational speed of the motor is less than 2r/s. Compared with the prior art, the utility model has the following beneficial effects: According to the utility model, the motor, the speed regulator,