Pressing device of sample preparation crushing and grinding machine

Abstract

The utility model discloses a pressing device of a sample preparation crushing and grinding machine. The pressing device of the sample preparation smashing and grinding machine comprises a vibration machine base, a bowl body and a bowl cover, a plurality of limiting bosses distributed in the circumferential direction are arranged on the peripheral face of the bowl cover, the vibration machine base is provided with pressing plates in one-to-one correspondence with the limiting bosses, and limiting grooves matched with the limiting bosses are formed in the bottoms of the pressing plates. At least one pressing plate is provided with a rotation stopping mechanism, the rotation stopping mechanism comprises a mounting base fixedly connected to the top face of the pressing plate, a first hole is formed in the bottom face of the mounting base, a second hole is formed in the bottom face of the first hole, the diameter of the second hole is smaller than that of the first hole, a plug pin penetrates through the first hole and the second hole, and a pressing ring is arranged in the middle of the plug pin. A spring connected to the outer side of the plug pin in a sleeving mode is arranged between the pressing ring and the bottom face of the first hole, at least one limiting boss is provided with a limiting hole where the plug pin is inserted, and a plug pin passing hole is formed in the pressing plate fixedly connected with the installation base. According to the utility model, the problem that the sample preparation efficiency is influenced due to the material leakage phenomenon in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of grinders, in particular to a pressing device of a sample preparation, crushing and grinding machine. Background Art

[0002] Sealed sample preparation pulverizers are used in geology, ore, coal, etc. They can effectively pulverize minerals and brittle materials of various hardnesses, and are equipment for preparing test samples. Before the existing sealed sample preparation pulverizer works, the bowl body is first placed at the bayonet at the center of the vibration machine base, and then the pressure rod is rotated to buckle the bowl cover hinged to the middle of the pressure rod on the opening of the bowl body. Finally, the screw on the other side is rotated to insert the screw into the slot opened at the end of the pressure rod, and the locking nut at the top of the screw is rotated. The bowl cover is used to block the opening of the bowl body and the bowl cover is used to restrict the bowl body in the bayonet. However, the bowl body frequently impacts the pressure rod during high-speed vibration, resulting in severe wear between the locking nut and the screw, and then the bowl cover and the bowl body are easily loosened and material leakage occurs, thereby affecting the sample preparation efficiency. Utility Model Content

[0003] The utility model aims to provide a clamping device for a sample preparation pulverizing and grinding machine, which can eliminate the material leakage phenomenon and improve the sample preparation efficiency, in view of the shortcomings of the prior art.

[0004] In order to achieve the above purpose, the technical solution adopted by the clamping device of the sample preparation, crushing and grinding machine of the utility model is:

[0005] A clamping device for a sample preparation, crushing and grinding machine comprises a vibration machine base, a bowl body and a bowl cover, the outer circumferential surface of the bowl cover is provided with a plurality of limiting bosses arranged in a circle, the vibration machine base is provided with a pressure plate corresponding to the limiting bosses one by one, a limiting groove cooperating with the limiting bosses is provided at the bottom of the pressure plate, at least one of the pressure plates is provided with a rotation-stopping mechanism, the rotation-stopping mechanism comprises a mounting seat fixedly connected to the top surface of the pressure plate, a hole one is provided on the bottom surface of the mounting seat, a hole two is provided on the bottom surface of the hole one, the diameter of the hole two is smaller than the diameter of the hole one, a latch passes through the hole one and the hole two, a pressure ring is provided in the middle of the latch, a spring sleeved on the outside of the latch is provided between the pressure ring and the bottom surface of the hole one, at least one of the limiting bosses is provided with a limiting hole for inserting the latch, and the pressure plate fixed to the mounting seat is provided with a latch through hole.

[0006] Preferably, at least one side wall of the pressing plate is provided with a positioning plate that cooperates with the side wall of the limiting boss.

[0007] Preferably, a cross bar is provided at one end of the latch extending out of hole 2, and support platforms are provided on both sides of the top surface of the mounting seat for temporarily storing the cross bar.

[0008] Preferably, a sealing ring is provided between the bottom surface of the bowl cover and the top surface of the bowl body.

[0009] Preferably, a bowl cover handle is provided on the top surface of the bowl cover.

[0010] Compared with the prior art, the utility model has the following advantages:

[0011] 1. Under the action of the spring, the pin is kept from separating from the limiting hole, so that the limiting boss is kept from separating from the limiting groove, so as to ensure that the bowl body and the bowl cover are not loose during high-speed vibration, thereby eliminating the material running phenomenon and improving the sample preparation efficiency.

[0012] 2. When the side wall of the limiting boss abuts against the positioning plate, the latch is coaxial with the limiting hole, thereby facilitating the insertion of the latch.

[0013] 3. The sealing ring further improves the sealing performance of the bowl cover to seal the bowl body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the clamping device of the sample preparation, crushing and grinding machine of the utility model;

[0015] Figure 2 It is a cross-sectional view of the clamping device of the sample preparation, crushing and grinding machine of the utility model;

[0016] Figure 3 yes Figure 2 Enlarged view of point C;

[0017] Figure 4 This is a schematic diagram of the structure of the bowl cover;

[0018] Figure 5 It is a structural schematic diagram of the pressure plate;

[0019] Figure 6 is a cross-sectional view of the mounting base;

[0020] Figure 7 This is a diagram of the state where the crossbar is stored on the top of the support platform.

[0021] Among them, 1 is a vibration base, 11 is a pressure plate, 111 is a limiting groove, 112 is a positioning plate, 113 is a pin hole, 2 is a bowl body, 3 is a bowl cover, 31 is a bowl cover handle, 32 is an annular groove, 33 is a limiting boss, 331 is a limiting hole, 4 is a sealing ring, 5 is a rotation-stopping mechanism, 51 is a mounting seat, 511 is a hole one, 512 is a hole two, 513 is a support platform, 52 is a pin, 521 is a pressure ring, 522 is a cross bar, and 53 is a spring. DETAILED DESCRIPTION

[0022] The present invention is further explained below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that these implementation methods are only used to illustrate the present invention and are not used to limit the scope of the present invention. After reading the present invention, various equivalent forms of modifications to the present invention by those skilled in the art all fall within the scope defined by the claims attached to this application.

[0023] like Figure 1-7 As shown, a clamping device of a sample preparation crushing and grinding machine comprises a vibration machine base 1, a bowl body 2 and a bowl cover 3. A bowl cover handle 31 is welded to the top surface of the bowl cover to facilitate extraction or rotation of the bowl cover. An annular groove 32 is provided on the bottom surface of the bowl cover. A sealing ring 4 is installed in the annular groove. The sealing ring fits with the top surface of the bowl body, thereby improving the sealing performance of the bowl cover to block the bowl body. Four limiting bosses 33 uniformly arranged in a circle are welded to the outer circumference of the bowl cover. A pressing plate 11 corresponding to the limiting bosses is welded to the vibration machine base. A limiting groove 111 cooperating with the limiting bosses is provided at the bottom of the pressing plate. A rotation-stopping mechanism 5 is installed on all four pressing plates. The rotation-stopping mechanism comprises a mounting seat 51 fixedly connected to the top surface of the pressing plate. A hole 1 511 is provided on the bottom surface of the mounting seat. A hole 2 511 is provided on the bottom surface of the hole 1. 12. The diameter of hole two is smaller than that of hole one. Hole one and hole two pass through the latch 52. A pressing ring 521 is integrally formed in the middle of the latch. A spring 53 is installed between the pressing ring and the bottom surface of hole one and is sleeved on the outside of the latch. A cross bar 522 is welded to one end of the latch extending out of hole two. The cross bar extends horizontally to both sides of the latch. Support platforms 513 are integrally formed on both sides of the top surface of the mounting seat for temporarily storing the cross bar to facilitate single-person operation. A limiting hole 331 for inserting the latch is provided on the limiting boss. A pressing plate is arbitrarily selected. A positioning plate 112 that cooperates with the side wall of the limiting boss is installed on the side wall of the pressing plate. When the side wall of the limiting boss abuts against the positioning plate, the latch is coaxial with the limiting hole, thereby facilitating the insertion of the latch. A latch through hole 113 is provided on the pressing plate fixed to the mounting seat.

[0024] The specific working process and principle of a clamping device of a sample preparation crushing and grinding machine are as follows: the bowl cover is placed on the top surface of the bowl body, and when placed, the limiting boss with the limiting hole is placed correspondingly close to the pressing plate installed with the anti-rotation mechanism, and the bowl cover handle is used to rotate the bowl cover until one of the limiting bosses abuts against the positioning plate, at which time the latch is coaxial with the limiting hole, the cross bar is lifted and rotated 90°, the cross bar moves downward between the two support platforms, the latch is inserted into the limiting hole, and under the action of the spring, the latch is ensured not to be separated from the limiting hole, thereby preventing the limiting boss from being separated from the limiting groove, and the limiting groove and the limiting boss cooperate to prevent the bowl cover and the bowl body from loosening during high-speed vibration, thereby eliminating the material running phenomenon and improving the sample preparation efficiency; when the sample is ground, the cross bar is lifted upward, and rotated 90° after exceeding the support platform, and the cross bar is overlapped on the top surface of the support platform, at which time the latch is completely separated from the limiting hole, and after the limiting platform is turned away from the limiting groove, the bowl cover and the bowl body can be separated. The utility model is easy to operate and has high reliability.

Claims

1. A clamping device for a sample preparation crushing and grinding machine, comprising a vibrating base, a bowl body and a bowl cover, characterized in that: The outer circumferential surface of the bowl cover is provided with a plurality of limiting bosses arranged in a circle, the vibration machine base is provided with a pressure plate corresponding to the limiting bosses one by one, the bottom of the pressure plate is provided with a limiting groove cooperating with the limiting boss, at least one of the pressure plates is provided with a rotation-stopping mechanism, the rotation-stopping mechanism comprises a mounting seat fixedly connected to the top surface of the pressure plate, the bottom surface of the mounting seat is provided with a hole one, the bottom surface of the hole one is provided with a hole two, the diameter of the hole two is smaller than the diameter of the hole one, the hole one and the hole two are penetrated by latches, a pressure ring is provided in the middle of the latch, a spring is provided between the pressure ring and the bottom surface of the hole one and is sleeved on the outside of the latch, at least one of the limiting bosses is provided with a limiting hole for inserting the latch, and the pressure plate fixed to the mounting seat is provided with a latch through hole.

2. The clamping device of the sample preparation, pulverizing and grinding machine according to claim 1 is characterized in that: At least one side wall of the pressing plate is provided with a positioning plate matched with the side wall of the limiting boss.

3. The clamping device of the sample preparation, pulverizing and grinding machine according to claim 1 is characterized in that: A cross bar is arranged at one end of the latch pin extending out of the second hole, and support platforms are arranged on both sides of the top surface of the mounting seat for temporarily storing the cross bar.

4. The clamping device of the sample preparation, pulverizing and grinding machine according to claim 1 is characterized in that: A sealing ring is arranged between the bottom surface of the bowl cover and the top surface of the bowl body.

5. The clamping device of the sample preparation, pulverizing and grinding machine according to claim 1 is characterized in that: The top surface of the bowl cover is provided with a bowl cover handle.

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