A low noise and low dust spectrum grinding machine

Abstract

The utility model provides a low-noise and low-dust spectral grinding machine, which relates to the technical field of spectral grinding machines, including: a limiting ring is welded on the rear end of the grinding belt wheel, and a retaining ring is slidingly sleeved on the front end of the grinding belt wheel; a recessed groove is concavely provided on the front end surface of the grinding belt wheel, a circular boss is formed at the center of the recessed groove, and a driving ring is installed on the circular boss through a spring push; a circle of plug plates is inserted and inserted around the circumferential side wall of the recessed groove, and a circle of connecting rods is connected between a circle of plug plates and the driving ring; a circle of positioning sleeves is welded around the driving ring, and the head end part of the plug plates is inserted and matched with the positioning sleeves, and the left and right torsion circle driving rings can synchronously drive a circle of plug plates to slide synchronously inwards and outwards, and the tightening and loosening of the retaining ring can be completed quickly and at one time. Compared with the prior art, the tightening and disassembling operations of the sand belt blocking and limiting mechanism are more convenient and efficient, which is beneficial to indirectly improve the efficiency of sand belt replacement.

Description

Technical Field

[0001] The utility model relates to the technical field of spectrum sample grinding machines, in particular to a low-noise and low-dust spectrum sample grinding machine. Background Art

[0002] The spectroscopic sample grinder is a device used for sample preparation and analysis of metals, alloys and other materials. It is usually used to analyze the chemical composition and structure of materials. When using a spectroscopic sample grinder, solid samples are usually ground into powder and then analyzed for chemical composition by spectroscopic instruments. This equipment is widely used in materials science, metallurgy, geology and other fields to conduct in-depth analysis and research on materials.

[0003] The existing abrasive belt-type spectral grinding machines have a grinding belt wheel on which the grinding belt is limited to prevent or reduce the sanding belt from falling off during use. Some of them are provided with a blocking and limiting mechanism for the sanding belt, but the structures used for mounting and fixing with the grinding belt wheel on these blocking and limiting mechanisms are mostly in the form of threaded tightening, and to ensure the stability of the installation, the mounting and fixing structure is generally equipped with at least two threaded tightening parts. This results in that when replacing the sanding belt and disassembling and assembling the blocking and limiting mechanism, at least two threaded tightening parts need to be tightened and loosened in sequence, which is troublesome and inconvenient to operate, and is not conducive to the rapid and efficient replacement of the sanding belt. Utility Model Content

[0004] In view of this, the utility model provides a low-noise and low-dust spectral grinding machine to solve the problem that when replacing the sanding belt and disassembling and assembling the blocking limit mechanism, it is necessary to tighten and loosen at least two threaded tightening parts in sequence, which is troublesome and inconvenient to operate and is not conducive to quick and efficient replacement of the sanding belt.

[0005] The technical solution proposed by the utility model is: a low-noise and low-dust spectral sample grinding machine, which specifically comprises a chassis, a sample to be ground and an abrasive belt wheel; two abrasive belt wheels are symmetrically mounted inside the chassis for rotation;

[0006] A limit ring is welded to the rear end of the grinding belt wheel, and a retaining ring is slidably sleeved on the front end of the grinding belt wheel; a recessed groove is formed on the front end surface of the grinding belt wheel, a circular boss is formed at the center of the recessed groove, and a driving ring is installed on the circular boss through a spring push; a circle of inserting plates is inserted and inserted around the circumferential side wall of the recessed groove, and a circle of connecting rods is connected between the circle of inserting plates and the driving ring; a circle of positioning sleeves is welded around the driving ring, and the head end of the inserting plate is inserted and matched with the positioning sleeve;

[0007] A tensioning sleeve is provided with an abrasive belt between the two abrasive belt wheels, and a limiting ring and a retaining ring are used to limit the abrasive belt to the abrasive belt wheel.

[0008] Furthermore,

[0009] An arc groove is provided on the circular boss near the grinding belt wheel, and an arc positioning rod is welded in the arc groove.

[0010] Furthermore,

[0011] A sliding plate is welded on the inner circumference of the driving ring, and the sliding plate is slidably matched with the arc-shaped positioning rod and the arc-shaped groove through spring pushing.

[0012] Furthermore,

[0013] Two vertical fixing plates are symmetrically welded in the middle of the chassis bottom plate, one of which is slidably mounted with a vertical clamping plate for clamping and fixing the sample to be ground, and a push bolt is rotatably connected to the middle of the vertical clamping plate;

[0014] The threaded section of the push bolt is screwed through the vertical fixing plate, and the polished rod portion at the head end is slidably fitted through the short side wall of the chassis.

[0015] Furthermore,

[0016] A ground contact bracket is fixed at the bottom of the chassis, a driving motor is installed at the top end of the rear side of the ground contact bracket, and the driving motor is connected to the abrasive belt wheel shaft for transmission.

[0017] Furthermore,

[0018] Two box covers are symmetrically and slidably installed on the front opening of the box.

[0019] Furthermore,

[0020] A circle of force shaft is welded around the front end of the driving ring, and the circle of force shaft is in sliding contact with the circular boss.

[0021] The utility model provides a low-noise and low-dust spectrum grinding machine, which has the following beneficial effects:

[0022] The utility model has a circle of driving rings, a circle of connecting rods and a circle of inserting plates connected together to form a circle of crank slider mechanism. Through this mechanism, the left and right torsion circle driving rings can synchronously drive a circle of inserting plates to slide synchronously inward and outward, so as to complete the tightening and loosening of the retaining ring in one go and quickly. Compared with the prior art, the tightening and disassembling operations of the sand belt blocking and limiting mechanism are more convenient and efficient, which is beneficial to indirectly improving the replacement efficiency of the sand belt. The retaining ring can ensure the blocking and limiting of the sand belt while taking into account the quick and efficient replacement of the sand belt, so it has better practicality.

[0023] In addition, the two grinding wheels and the sanding belts between them are all shielded and installed inside the chassis. The relatively closed chassis can block the noise and dust generated during grinding, which helps to reduce the noise and dust when the machine is running. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings of the embodiment will be briefly introduced below.

[0025] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0026] In the attached picture:

[0027] Figure 1 The overall front side structural schematic diagram of the utility model is shown;

[0028] Figure 2 The overall rear side structure schematic diagram of the utility model is shown;

[0029] Figure 3 The structure schematic diagram of the grinding belt wheel of the utility model is shown;

[0030] Figure 4 A schematic diagram of the disassembly state of the retaining ring of the utility model is shown;

[0031] Figure 5 The schematic diagram of the inner side structure of the arc groove section of the utility model is shown;

[0032] Figure 6 A schematic diagram of the retaining ring structure of the utility model is shown;

[0033] Figure 7 A schematic diagram of the vertical splint structure of the utility model is shown;

[0034] Reference numerals list

[0035] 1. Chassis; 101. Chassis cover; 102. Vertical fixing plate; 103. Vertical clamping plate; 1031. Push bolt;

[0036] 2. Samples to be ground;

[0037] 3. Abrasive belt wheel; 301. Limiting ring; 302. Blocking ring; 3021. Positioning sleeve; 303. Circular boss; 3031. Arc groove; 3032. Arc positioning rod; 304. Insert plate; 305. Connecting rod; 306. Driving ring; 3061. Focusing shaft; 3062. Slide plate;

[0038] 4. Ground contact bracket;

[0039] 5. Drive motor. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the described embodiments of 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.

[0041] Please refer to Figures 1 to 7 ;

[0042] Embodiment 1:

[0043] For the convenience of description, the short side of the chassis 1 is marked as the left-right direction, and the long side of the chassis 1 is marked as the front-back direction;

[0044] The utility model provides a low-noise and low-dust spectrum sample grinding machine, comprising a chassis 1, a sample to be ground 2 and a grinding belt wheel 3; two grinding belt wheels 3 are symmetrically rotated and installed inside the chassis 1;

[0045] Among them, a limit ring 301 is welded at the rear end of the grinding belt wheel 3, and a retaining ring 302 is slidably sleeved at the front end of the grinding belt wheel 3. A grinding belt is tensioned between the two grinding belt wheels 3. The limit ring 301 and the retaining ring 302 are used to block and limit the grinding belt on the grinding belt wheel 3 to prevent the grinding belt from falling off during grinding. A recessed groove is formed on the front end surface of the grinding belt wheel 3, and a circular boss 303 is formed at the center of the recessed groove, and a driving ring 306 is installed on the circular boss 303 through spring pushing. A circle of insert plates 304 is inserted and inserted through the circumferential side wall of the recessed groove, and a circle of connecting rods 305 is connected between a circle of insert plates 304 and the driving ring 306. A circle of positioning sleeves 3021 is welded around the driving ring 306, and the first part of the insert plates 304 is The end portion is plugged into and matched with the positioning sleeve 3021 to plug and fix the retaining ring 302 on the sanding belt wheel 3. The retaining ring 302 can be loosened and removed to disassemble and replace the sanding belt; a circle of driving ring 306, a circle of connecting rod 305 and a circle of plug plate 304 are connected together to form a circle of crank slider mechanism. Through this mechanism, the left and right torsion circle driving ring 306 can synchronously drive a circle of plug plate 304 to slide inward and outward synchronously, and the retaining ring 302 can be quickly and easily tightened at one time. Compared with the prior art, the tightening and disassembling operation of the sanding belt blocking and limiting mechanism is more convenient and efficient, which is beneficial to indirectly improve the replacement efficiency of the sanding belt, and the retaining ring 302 can ensure the blocking and limiting of the sanding belt while taking into account the quick and efficient replacement of the sanding belt, and has better practicality.

[0046] Preferably,

[0047] An arc groove 3031 is formed on the circular boss 303 near the grinding belt wheel 3 , and an arc positioning rod 3032 is welded in the arc groove 3031 .

[0048] Preferably,

[0049] A slide plate 3062 is welded to the inner circumference of the driving ring 306, and the slide plate 3062 is slidably matched with the arc-shaped positioning rod 3032 and the arc-shaped groove 3031 through the push of a spring. The spring on the arc-shaped positioning rod 3032 is used to push the driving ring 306 to an initial state of rightward transfer under normal conditions, so that a circle of plug plates 304 remains in an outward sliding protruding plug-in positioning use state.

[0050] Preferably,

[0051] Two vertical fixing plates 102 are symmetrically welded in the middle of the bottom plate of the chassis 1, and a vertical clamping plate 103 for clamping and fixing the sample 2 to be ground is slidably installed on one of the vertical fixing plates 102, and a push bolt 1031 is rotatably connected to the middle position of the vertical clamping plate 103;

[0052] The threaded section of the push bolt 1031 penetrates and screws with the vertical fixing plate 102 , and the polished rod portion at the head end penetrates and slides with the short side wall of the chassis 1 .

[0053] Preferably,

[0054] A ground-contact bracket 4 is fixed at the bottom of the chassis 1, and a driving motor 5 is installed at the top rear position of the ground-contact bracket 4. The driving motor 5 is connected to the abrasive belt wheel 3 on the left side for transmission. The driving motor 5 is used to rotate and drive the two abrasive belt wheels 3 and the abrasive belt to grind and prepare the sample 2 to be ground.

[0055] Based on the first embodiment, the second embodiment:

[0056] Two box covers 101 are symmetrically slidably installed on the front opening of the chassis 1. The two grinding wheels 3 and the grinding belts therebetween are all shielded and installed inside the chassis 1. The relatively closed chassis 1 can block and intercept the noise and dust generated during grinding, which helps to reduce the noise and dust when the machine is running.

[0057] Preferably,

[0058] A circle of force shaft 3061 is welded around the front end of the driving ring 306 , and the circle of force shaft 3061 is in sliding contact with the circular boss 303 . The circle of force shaft 3061 can be conveniently held to exert force and implement torsional drive on the driving ring 306 .

[0059] Working principle: The driving motor 5 is used to drive the two grinding belt wheels 3 and the grinding belt to rotate and grind the sample 2 to be ground. The limit ring 301 and the retaining ring 302 are used to block and limit the grinding belt on the grinding belt wheel 3 to prevent the grinding belt from falling off during grinding. The vertical clamping plate 103 is used to clamp and fix the sample 2 to be ground.

[0060] The head end of the insert plate 304 is inserted and matched with the positioning sleeve 3021 to insert and fix the retaining ring 302 on the sanding belt wheel 3. The retaining ring 302 can be loosened and removed to disassemble and replace the sanding belt; a circle of driving rings 306, a circle of connecting rods 305 and a circle of insert plates 304 are connected together to form a circle of crank slider mechanism. Through this mechanism, the left and right torsional driving rings 306 can synchronously drive a circle of insert plates 304 to slide synchronously inward and outward, so as to complete the tightening and loosening of the retaining ring 302 in one go.

[0061] The spring on the arc-shaped positioning rod 3032 is used to push the drive ring 306 to the initial state of rightward transfer under normal conditions, so that a circle of plug plates 304 remain in an outward sliding protruding plug-in positioning state, and a circle of force shafts 3061 can be easily held to exert force and implement torsional drive on the drive ring 306.

[0062] In this article, there are a few points to note:

[0063] 1. The drawings of the embodiments of the present utility model only relate to the structures related to the embodiments of the present utility model, and other structures may refer to the usual designs.

[0064] 2. In the absence of conflict, the embodiments of the present invention and the features therein may be combined with each other to obtain new embodiments.

[0065] The above are only specific implementations of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A low noise and low dust spectrum grinding machine, comprising: A machine case (1), a sample to be ground (2) and an abrasive belt wheel (3); two abrasive belt wheels (3) are symmetrically mounted inside the machine case (1); The invention is characterized in that a limit ring (301) is welded to the rear end of the grinding belt wheel (3), and a retaining ring (302) is slidably sleeved on the front end of the grinding belt wheel (3); a recessed groove is formed on the front end surface of the grinding belt wheel (3), a circular boss (303) is formed at the center of the recessed groove, and a driving ring (306) is installed on the circular boss (303) through the spring push; a circle of inserting plates (304) is inserted and inserted on the circumferential side wall of the recessed groove, and a circle of connecting rods (305) is connected between the circle of inserting plates (304) and the driving ring (306); a circle of positioning sleeves (3021) is welded on the driving ring (306), and the head end of the inserting plate (304) is inserted and matched with the positioning sleeve (3021); A tensioning sleeve is provided with an abrasive belt between the two abrasive belt wheels (3), and a limiting ring (301) and a retaining ring (302) are used to limit the abrasive belt to the abrasive belt wheel (3).

2. The low noise and low dust spectrum grinding machine according to claim 1 is characterized in that: An arc-shaped groove (3031) is provided on the circular boss (303) at a position close to the grinding belt wheel (3), and an arc-shaped positioning rod (3032) is welded in the arc-shaped groove (3031).

3. The low noise and low dust spectrum grinding machine according to claim 2 is characterized in that: A slide plate (3062) is welded to the inner circumference of the driving ring (306), and the slide plate (3062) is slidably matched with the arc-shaped positioning rod (3032) and the arc-shaped groove (3031) through the pushing of a spring.

4. The low noise and low dust spectrum grinding machine according to claim 1 is characterized in that: Two vertical fixing plates (102) are symmetrically welded at the middle position of the bottom plate of the chassis (1), a vertical clamping plate (103) for clamping and fixing the sample to be ground (2) is slidably mounted on one of the vertical fixing plates (102), and a push bolt (1031) is rotatably connected to the middle position of the vertical clamping plate (103); The threaded section of the push bolt (1031) is screwed through the vertical fixing plate (102), and the polished rod portion at the head end is screwed through the short side wall of the chassis (1).

5. The low noise and low dust spectrum grinding machine according to claim 1 is characterized in that: A ground contact bracket (4) is fixed to the bottom of the chassis (1), a driving motor (5) is installed at the top end of the rear side of the ground contact bracket (4), and the driving motor (5) is axially connected to the grinding belt wheel (3) for transmission.

6. The low noise and low dust spectrum grinding machine according to claim 1, characterized in that: Two box covers (101) are symmetrically slidably mounted on the front opening of the box (1).

7. The low noise and low dust spectrum grinding machine according to claim 1, characterized in that: A circle of traction shaft (3061) is welded around the front end of the driving ring (306), and the circle of traction shaft (3061) is in sliding contact with the circular boss (303).

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