Feeding and crushing device of nail disc crusher

Abstract

This application relates to the technical field of nail disc crushers, and particularly to a feeding and crushing device for a nail disc crusher, comprising a crushing shell with a crushing chamber, a fixed nail disc disposed on the crushing shell, a rotating shaft rotatably connected to the crushing shell, and a rotating nail disc mounted on the rotating shaft; the fixed nail disc is provided with fixed nail teeth, and the rotating nail disc is provided with rotating nail teeth, the fixed nail disc and the rotating nail disc are arranged opposite to each other, and the fixed nail teeth and the rotating nail teeth are staggered in the radial direction; a feed pipe is connected to the middle position of the fixed nail disc, and a discharge pipe communicating with the crushing chamber is provided at the lower end of the crushing shell. This application has the advantages of improving crushing accuracy and crushing efficiency at the same time.

Description

Technical Field

[0001] This application relates to the technical field of nail disc crushers, and particularly to a feeding and crushing device for a nail disc crusher. Background Technology

[0002] In the many aspects of the medical industry, pulverization technology plays a crucial role. From drug development and formulation production to medical testing and pathological analysis, all require precise and efficient pulverization of various substances.

[0003] In drug research and development and production, the particle size of drugs plays a crucial role in their efficacy. For example, for oral medications, smaller and more uniform particle sizes increase the contact area between the drug and the gastrointestinal mucosa, promoting drug dissolution and absorption, thereby improving bioavailability. In the preparation of some high-end drug formulations, such as nanosuspensions and liposome delivery systems, there are even strict nanoscale requirements for drug particle size. In the field of medical testing, the processing of blood and tissue samples also requires the fine pulverization of cells or tissues in the samples for subsequent operations such as component analysis and nucleic acid extraction. Precise pulverization helps improve the accuracy and reliability of test results.

[0004] However, the current pulverization methods used in the medical field have some prominent problems. Existing pulverization methods can be roughly divided into two categories. One category is based on traditional mechanical pulverization methods, such as ball mills and grinders. Although this type of pulverization method is widely used, it generally suffers from insufficient pulverization precision.

[0005] Another type of pulverization method focuses on achieving high pulverization precision, such as equipment employing advanced technologies like ultrasonic pulverization and air jet milling. While these methods can theoretically achieve relatively small particle sizes, they suffer from low pulverization efficiency. In ultrasonic pulverization, the transfer and conversion efficiency of ultrasonic energy is limited, resulting in a small amount of material that can be processed per unit time. Air jet milling requires a large amount of high-pressure gas, leading to high equipment operating costs. Furthermore, fluctuations in gas flow and pressure make it difficult to maintain a stable pulverization process, further reducing efficiency. In scenarios involving large-scale drug production or batch processing of medical test samples, this inefficient pulverization method severely restricts production and testing progress, failing to meet practical application requirements. Utility Model Content

[0006] In order to improve both the crushing precision and the crushing efficiency, this application provides a feeding and crushing device for a nail disc crusher.

[0007] The feeding and crushing device for a nail disc crusher provided in this application adopts the following technical solution:

[0008] A feeding and crushing device for a nail disc crusher includes a crushing shell with a crushing chamber, a fixed nail disc disposed on the crushing shell, and a rotating nail disc rotatably mounted in the crushing chamber via a rotating shaft; the fixed nail disc is provided with fixed nail teeth, the rotating nail disc is provided with rotating nail teeth, the fixed nail disc and the rotating nail disc are arranged opposite to each other, and the fixed nail teeth and the rotating nail teeth are staggered in the radial direction;

[0009] A feed pipe is connected to the middle position of the fixed nail plate, and a discharge pipe communicating with the crushing chamber is provided at the lower end of the crushing shell.

[0010] In one embodiment: the fixing nail disk is provided with a plurality of first annular protrusions, the fixing nail teeth are provided on the first annular protrusions, and the ends of the fixing nail teeth are spaced apart from the end faces of the rotating nail disk; the rotating nail disk is provided with a plurality of second annular protrusions, the rotating nail teeth are provided on the second annular protrusions, and the ends of the rotating nail teeth are spaced apart from the end faces of the fixing nail teeth.

[0011] In one embodiment, the feed pipe is provided with a liquid nitrogen inlet.

[0012] In one embodiment, the liquid nitrogen inlet is coaxial with the rotating shaft.

[0013] In one embodiment: the end face of the crushing shell connected to the feed pipe is provided with a first cooling chamber, and the first cooling chamber is provided with at least two first connection ports.

[0014] In one embodiment: the end face of the crushing shell connected to the rotating shaft is provided with a second cooling chamber, and the second cooling chamber is provided with at least two second connection ports.

[0015] In one embodiment: a third cooling chamber is provided on the outer circumference of the crushing shell, and the third cooling chamber is provided with at least two third connection ports.

[0016] In one embodiment, the front cover of the crushing housing is removable.

[0017] In one embodiment: the front cover and the crushing shell are connected by a double swing arm structure, the double swing arm structure including a first swing arm rotatably connected to the front cover and a second swing arm rotatably connected to the crushing shell, the first swing arm and the second swing arm being rotatably connected. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the feeding and crushing device of the nail disc crusher in this embodiment;

[0019] Figure 2 This is a front sectional view of the feeding and crushing device of the nail disc crusher in this embodiment;

[0020] Figure 3 This is a schematic diagram of the front cover structure in the feeding and crushing device of the nail disc crusher in this embodiment;

[0021] Figure 4 This is a schematic diagram of the front cover and rotating nail disc in the feeding and crushing device of the nail disc crusher in this embodiment.

[0022] In the diagram, 110 is the crushing shell; 111 is the crushing chamber; 112 is the feed pipe; 113 is the liquid nitrogen inlet; 114 is the gas port; 115 is the discharge pipe; 120 is the fixed nail plate; 121 is the first annular protrusion; 122 is the fixed nail tooth; 130 is the rotating nail plate; 131 is the second annular protrusion; 132 is the rotating nail tooth; 140 is the double swing arm structure; 141 is the first swing arm; 142 is the second swing arm; 150 is the first cooling chamber; 151 is the first connection port; 160 is the second cooling chamber; 161 is the second connection port; 170 is the third cooling chamber; 171 is the third connection port; and 410 is the rotating shaft. Detailed Implementation

[0023] The present application will be further described in detail below with reference to the accompanying drawings.

[0024] In the description of this application, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0025] A feeding and crushing device for a nail disc crusher, such as Figure 1 and Figure 2 As shown, it includes a crushing shell 110, a fixed nail disc 120, and a rotating nail disc 130.

[0026] The crushing shell 110 is generally circular and has a crushing chamber 111 inside. A feed pipe 112 is connected to the center of the front cover of the crushing shell 110, and the other end of the feed pipe 112 is bent and extends upward.

[0027] The feed pipe 112 is provided with a liquid nitrogen inlet 113 and an air port 114. The liquid nitrogen inlet 113 is horizontally set and coaxial with the rotating shaft 410. The liquid nitrogen inlet 113 is used to introduce liquid nitrogen to cool and reduce the temperature of the crushed material and the crushing device. The air port 114 is used to balance the negative pressure in the feed pipe 112.

[0028] The lower end of the crushing shell 110 is provided with a discharge pipe 115 that communicates with the crushing chamber 111.

[0029] Reference Figure 3The inner wall of the front cover of the crushing shell 110 protrudes inward to form the aforementioned fixing nail disk 120, and the feed pipe 112 is connected to the middle position of the fixing nail disk 120. The fixing nail disk 120 is provided with a plurality of first annular protrusions 121, and fixing nail teeth 122 are evenly distributed on the end face of each first annular protrusion 121.

[0030] Reference Figure 2 and 4 The back of the crushing housing 110 is the crusher rear cover, on which a rotating shaft 410 is installed. The rotating shaft 410 extends into the crushing chamber 111 and is fixedly connected to the aforementioned rotating nail plate 130. Both the rotating nail plate 130 and the fixed nail plate 120 are circular in structure and are arranged opposite each other.

[0031] The rotating nail disk 130 is provided with a plurality of second annular protrusions 131, and rotating nail teeth 132 are evenly distributed on the end face of each second annular protrusion 131. Among them, the first annular protrusion 121 and the second annular protrusion 131 are staggered in the radial direction, so that the fixed nail teeth 122 and the rotating nail teeth 132 are also staggered in the radial direction.

[0032] The first annular protrusion 121 creates a gap between the end of the rotating nail tooth 132 and the end face of the fixed nail tooth 122; the second annular protrusion 131 creates a gap between the end of the fixed nail tooth 122 and the end face of the rotating nail disk 130. This gap allows particulate material to enter the gap during crushing, extending the crushing time between the rotating nail disk 130 and the fixed nail disk 120, and also effectively crushing the material within the gap, thus improving crushing accuracy.

[0033] Among them, such as Figure 1 As shown, in order to facilitate cleaning of the crushing chamber 111, the front cover of the crushing housing 110 is detachable. Specifically, the front cover of the crushing housing 110 is connected to the crushing housing 110 by multiple bolts.

[0034] In addition, for easy disassembly and cleaning, the front cover and the crushing housing 110 are connected by a double swing arm structure 140. The double swing arm structure 140 includes a first swing arm 141 rotatably connected to the front cover and a second swing arm 142 rotatably connected to the crushing housing 110, with the first swing arm 141 and the second swing arm 142 rotatably connected. This double swing arm structure 140 allows the front cover to be removed and moved horizontally to separate the fixed nail disc 120 from the rotating nail disc 130, and after separation, it can be rotated open for easy cleaning.

[0035] like Figure 1 and Figure 2As shown, in order to further improve the cooling effect of the crushing chamber 111, three cooling chambers are provided on the crushing shell 110.

[0036] Specifically, a first cooling chamber 150 is provided on the front cover of the crushing shell 110. The first cooling chamber 150 is provided with at least two first connection ports 151. The first cooling chamber 150 is used to cool the fixed nail plate 120 and the feed pipe 112. The multiple first connection ports 151 are used for the inlet and outlet of coolant, respectively.

[0037] A second cooling chamber 160 is provided on the end face of the crushing housing 110 connected to the rotating shaft 410. The second cooling chamber 160 is provided with at least two second connection ports 161. The second cooling chamber 160 is used to cool the rear cover of the crusher, and the multiple second connection ports 161 are used for the inlet and outlet of coolant, respectively.

[0038] A third cooling chamber 170 is provided on the outer circumference of the crushing chamber 110, and the third cooling chamber 170 is provided with at least two third connection ports 171. The third cooling chamber 170 is used to cool the outer circumference of the crushing chamber 111, and the multiple third connection ports 171 are used for the inlet and outlet of coolant, respectively.

[0039] When introducing coolant, it is preferable to use a top-in, bottom-out method.

[0040] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A feed comminution device for a spike disc comminutor, characterised in that: The device includes a crushing shell (110) with a crushing chamber (111) inside, a fixed nail plate (120) disposed in the crushing shell (110), and a rotating nail plate (130) rotatably mounted in the crushing chamber (111) via a rotating shaft (410); the fixed nail plate (120) is provided with fixed nail teeth (122), and the rotating nail plate (130) is provided with rotating nail teeth (132); the fixed nail plate (120) and the rotating nail plate (130) are arranged opposite to each other, and the fixed nail teeth (122) and the rotating nail teeth (132) are staggered in the radial direction; The feed pipe (112) is connected to the middle position of the fixed nail plate (120), and the lower end of the crushing shell (110) is provided with a discharge pipe (115) that communicates with the crushing chamber (111).

2. The feed pulverizing device of a spike disc pulverizer according to claim 1, characterized in that: The fixed nail disk (120) is provided with a plurality of first annular protrusions (121), and the fixed nail teeth (122) are provided on the first annular protrusions (121). The ends of the fixed nail teeth (122) are spaced apart from the end faces of the rotating nail disk (130). The rotating nail disk (130) is provided with a plurality of second annular protrusions (131), and the rotating nail teeth (132) are provided on the second annular protrusions (131). The ends of the rotating nail teeth (132) are spaced apart from the end faces of the fixed nail teeth (122).

3. The feeding and crushing device of the nail disc crusher according to claim 1, characterized in that: The feed pipe (112) is equipped with a liquid nitrogen inlet (113).

4. The feed comminution device of a spike disk comminutor according to claim 3, characterized in that: The liquid nitrogen inlet (113) is coaxially arranged with the rotating shaft (410).

5. The feed comminution device of a spike disk comminutor according to claim 1, characterized in that: The crushing shell (110) is connected to a feed pipe (112) at one end face, which is provided with a first cooling chamber (150). The first cooling chamber (150) is provided with at least two first connection ports (151).

6. The feed comminution device of a spike disk comminutor according to claim 1, characterized in that: The crushing shell (110) is connected to a rotating shaft (410) at one end face, which is provided with a second cooling chamber (160). The second cooling chamber (160) is provided with at least two second connection ports (161).

7. The feed comminution device of a spike disk comminutor according to claim 1, characterized in that: The outer circumference of the crushing shell (110) is provided with a third cooling chamber (170), and the third cooling chamber (170) is provided with at least two third connection ports (171).

8. The feed comminution device of a spike disk comminutor according to claim 1, characterized in that: The front cover of the crushing housing (110) is detachable.

9. The feed comminution device of a spike disk comminutor according to claim 8, characterized in that The front cover and the crushing shell (110) are connected by a double swing arm structure (140). The double swing arm structure (140) includes a first swing arm (141) rotatably connected to the front cover and a second swing arm (142) rotatably connected to the crushing shell (110). The first swing arm (141) and the second swing arm (142) are rotatably connected.

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