Vertical pre-cooling type grinding instrument

Abstract

The utility model discloses a vertical precooling type grinder which comprises a box-type machine shell and a grinding cavity assembly, horizontal adjusting wheels are fixedly installed at the four corners of the bottom of the machine shell respectively, a horizontal supporting plate a and a horizontal supporting plate b are fixedly installed in an inner cavity of the machine shell respectively, and four symmetrical shock absorbers are fixedly installed on the supporting plate a. A carrying table is fixedly installed between the upper ends of the shock absorbers, a motor is installed on the carrying table, a supporting plate b supports the bottom of the grinding cavity assembly, a vertically-telescopic linear bearing is installed in the middle of the supporting plate b and comprises a polished shaft, a wheel disc is fixedly installed on an output shaft of the motor, and the lower end of the polished shaft is hinged to the eccentric position of the wheel disc through a connecting rod. The optical axis drives a grinding body in the grinding cavity assembly, and a refrigeration mechanism is installed at the bottom of an inner cavity of the machine shell. The platform deck at the bottom of the motor is installed through the shock absorber, shock absorption and sound reduction are achieved, the instrument cools the interior of the grinding cavity through the compressor, the condenser, the fan and other devices, and the whole machine is reasonably arranged up and down, so that the equipment is compact and operates stably.

Description

Technical Field

[0001] The utility model relates to the technical field of grinders, in particular to a vertical precooling grinder. Background Art

[0002] Industries such as biology, medicine, fine chemicals, geological exploration, and archaeological identification require specimens to be ground. Traditional grinding equipment does not provide a pre-cooling chamber. Batch-ground specimens are either placed in a refrigerator or at room temperature. In addition, the actual operation is inconvenient. They need to be taken out of the freezer and then taken to the grinder for installation and grinding. Therefore, the specimens are exposed to the air for a little longer, which will be detrimental to the specimens. A pre-cooling grinder can effectively avoid such problems and can quickly and efficiently grind and homogenize samples, greatly improving grinding efficiency and quality. A search found that a Chinese utility model patent with publication number CN201920935487.0 discloses a tissue grinding device with a freezing function. The connecting rod is hinged at the eccentricity of the rotating wheel to achieve reciprocating vibration, but the amplitude is fixed, and there are certain limitations in its use. Utility Model Content

[0003] The purpose of the utility model is to provide a vertical pre-cooling type grinding machine to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a vertical pre-cooling type grinding machine, comprising a box-type casing and a grinding chamber assembly, wherein the four corners of the bottom of the casing are respectively fixedly mounted with horizontal adjustment wheels, an upper cover is hingedly mounted on the rear side of the upper end of the casing, the grinding chamber assembly is located at the upper end of the casing and covers the upper port of the grinding chamber assembly after the upper cover is closed, and the inner cavity of the casing is respectively fixedly mounted with horizontal support plates a and support plates b, four symmetrical shock absorbers are fixedly mounted on the support plate a, a rectangular carrier is fixedly mounted between the upper ends of the shock absorbers, a motor is mounted on the carrier, and the support plate b supports At the bottom of the grinding chamber assembly, a vertically retractable linear bearing is installed in the middle of the support plate b, the linear bearing includes an optical axis, a wheel assembly is fixedly installed on the output shaft of the motor, the lower end of the optical axis is hinged to the eccentricity of the wheel assembly through a connecting rod, the wheel assembly can adjust the eccentric position, the optical axis drives the grinding body in the grinding chamber assembly, a refrigeration mechanism is installed at the bottom of the inner cavity of the casing, the wheel assembly includes a disk body, the disk body is provided with a radial groove, a matching slider is provided in the groove, a pin is provided on the outer side of the slider, a rotatable screw rod is provided in the groove, and the screw rod passes through the slider and is screwed therewith.

[0005] Preferably, an electric cylinder extending upward is hinged in the housing, and a piston rod at the upper end of the electric cylinder is hinged to the inner side of the upper cover.

[0006] Preferably, the refrigeration mechanism comprises a compressor, a condenser, a fan and an evaporator, and the evaporator is a spiral tube structure and is wound around the outer wall of the grinding chamber assembly.

[0007] Compared with the prior art, the beneficial effects of the utility model are: the carrier at the bottom of the motor is installed through a shock absorber to achieve shock absorption and noise reduction, and the position of the eccentric hinge point can be adjusted by twisting the screw. When in use, the vibration amplitude can be adjusted according to the actual grinding object to ensure the grinding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a cross-sectional structural schematic diagram of the utility model;

[0009] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0010] Figure 3 It is a schematic diagram of the structure of the wheel assembly.

[0011] In the figure: 1. casing; 2. upper cover; 3. grinding chamber assembly; 4. horizontal adjustment wheel; 5. carrier; 6. shock absorber; 7. motor; 8. support plate b; 9. wheel assembly; 91. disk body; 92. slide groove; 93. slider; 94. screw rod; 10. compressor; 11. electric cylinder; 12. support plate a; 13. evaporator; 14. linear bearing. DETAILED DESCRIPTION

[0012] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0013] See also Figure 1-3 The utility model provides a technical solution: a vertical pre-cooling type grinding machine, comprising a box-type casing 1 and a grinding chamber assembly 3, horizontal adjustment wheels 4 are fixedly installed at the four corners of the bottom of the casing 1, an upper cover 2 is hingedly installed on the rear side of the upper end of the casing 1, and the upper cover 2 is embedded in the top of the casing 1 after the cover is closed, the grinding chamber assembly 3 is located at the upper end of the casing 1 and covers the upper port of the grinding chamber assembly 3 after the upper cover 2 is closed, an electric cylinder 11 extending upward is hinged in the casing 1, a piston rod at the upper end of the electric cylinder 11 is hinged to the inner side of the upper cover 2, and the electric cylinder 11 is used to control the automatic opening and closing of the upper cover 2.

[0014] The inner cavity of the housing 1 is fixedly mounted with horizontal support plates a12 and b8, and four symmetrical shock absorbers 6 are fixedly mounted on the support plate a12. A rectangular carrier 5 is fixedly mounted between the upper ends of the shock absorbers 6. The shock absorbers 6 have damping to reduce vibration during operation. A motor 7 is mounted on the carrier 5, and the support plate b8 supports the bottom of the grinding chamber assembly 3. A vertically retractable linear bearing 14 is installed in the middle of the support plate b8, and the linear bearing 14 includes an optical axis. A wheel assembly 9 is fixedly installed on the output shaft of the motor 7. The wheel assembly includes a disk body 91, and the disk body 91 is provided with a radial slide groove 92. A matching slider 93 is provided in the slide groove 92, and a pin is provided on the outer side of the slider 93. The lower end of the optical axis is hinged to the pin through a connecting rod. A rotatable screw rod 94 is arranged in the slide groove 92, and the screw rod 94 passes through the slider 93 and is screwed therewith. A hexagonal head is provided at the end of the screw rod 94. The slider 93 can be driven to move along the slide groove 92 by screwing the screw rod 94 through the hexagonal head, thereby adjusting the position of the eccentric hinge point and adjusting the amplitude of vibration to meet different grinding requirements in actual applications.

[0015] The optical axis drives the grinding body in the grinding chamber assembly 3. A refrigeration mechanism is installed at the bottom of the inner chamber of the housing 1. The wheel disc, the connecting rod and the linear bearing 14 constitute a crank slider mechanism. The motor 7 drives the optical axis to move up and down. The refrigeration mechanism includes a compressor 10, a condenser, a fan and an evaporator 13. The evaporator 13 is a spiral tube structure and is wound on the outer wall of the grinding chamber assembly 3. The evaporator 13 cools and cools the grinding chamber assembly placed therein. The evaporator 13 is in direct contact with the grinding chamber assembly 3, which is conducive to improving the refrigeration rate.

[0016] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vertical pre-cooling type grinding machine, comprising a box-type casing (1) and a grinding chamber assembly (3), wherein the four corners of the bottom of the casing (1) are respectively fixedly mounted with horizontal adjustment wheels (4), an upper cover (2) is hingedly mounted on the rear side of the upper end of the casing (1), the grinding chamber assembly (3) is located at the upper end of the casing (1) and the upper cover (2) covers the upper port of the grinding chamber assembly (3) when closed, characterized in that: The inner cavity of the housing (1) is respectively fixedly mounted with a horizontal support plate a (12) and a support plate b (8); four symmetrical shock absorbers (6) are fixedly mounted on the support plate a (12); a rectangular carrier (5) is fixedly mounted between the upper ends of the shock absorbers (6); a motor (7) is mounted on the carrier (5); the support plate b (8) supports the bottom of the grinding chamber assembly (3); a vertically retractable linear bearing (14) is mounted in the middle of the support plate b (8); the linear bearing (14) includes an optical axis; a wheel assembly (9) is fixedly mounted on the output shaft of the motor (7) The lower end of the optical axis is hinged to the eccentric position of the wheel disc assembly (9) through a connecting rod, and the wheel disc assembly can adjust the eccentric position. The optical axis drives the grinding body in the grinding chamber assembly (3). A refrigeration mechanism is installed at the bottom of the inner cavity of the housing (1). The wheel disc assembly includes a disc body (91), and the disc body (91) is provided with a radial slide groove (92). A matching slider (93) is provided in the slide groove (92), and a pin is provided on the outer side of the slider (93). A rotatable screw rod (94) is provided in the slide groove (92), and the screw rod (94) passes through the slider (93) and is screwed thereto.

2. A vertical pre-cooling type grinding machine according to claim 1, characterized in that: An electric cylinder (11) extending upward is hinged inside the casing (1), and a piston rod at the upper end of the electric cylinder (11) is hinged to the inner side of the upper cover (2).

3. A vertical pre-cooling type grinding machine according to claim 1, characterized in that: The refrigeration mechanism comprises a compressor (10), a condenser, a fan and an evaporator (13); the evaporator (13) is a spiral tube structure and is wound around the outer wall of the grinding chamber assembly (3).

Images