CN215541525U

CN215541525U - Integrated crushing cutter of dry-method granulator

Info

Publication number: CN215541525U
Application number: CN202120645255.9U
Authority: CN
Inventors: 方正; 赵冬魁; 汪春雨; 江聪聪; 李成华
Original assignee: Nanjing Canaan Technology Co Ltd
Current assignee: Nanjing Canaan Technology Co Ltd
Priority date: 2021-03-30
Filing date: 2021-03-30
Publication date: 2022-01-18
Anticipated expiration: 2031-03-30

Abstract

The utility model discloses an integrated crushing cutter of a dry-method granulator, which comprises a transmission shaft and a crushing cutter arranged on the transmission shaft, wherein the transmission shaft comprises a fixed connecting part, a power transmission part and a tool mounting part which are sequentially arranged, the crushing cutter comprises a crushing cutter main body and a crushing cutter blade arranged on the crushing cutter main body, a first mounting hole and a second mounting hole communicated with the first mounting hole are sequentially formed in the center of the crushing cutter main body along the axial direction, the first mounting hole is matched with the fixed connecting part and used for connecting the transmission shaft with the crushing cutter, and the second mounting hole is matched with the power transmission part and used for power transmission of the transmission shaft and the crushing cutter. The utility model has the beneficial effects that: simple structure, reasonable in design has reduced operating personnel's intensity of labour, has guaranteed the quality of product.

Description

Integrated crushing cutter of dry-method granulator

Technical Field

The utility model relates to the technical field of dry method granulator cutters, in particular to an integrated crushing cutter of a dry method granulator.

Background

Utilize the broken mechanism drive of transmission shaft to belong to common drive mechanism among the industrial production, in the pharmaceutical production use, because the special properties of some materials need often change or clean crushing sword, in the installation of part, crushing sword is difficult to master with the transmission shaft concentricity, and the installation degree of difficulty is great, influences work efficiency. The existing industrial production uses a key connection or a mounting mechanism with a chamfer for centering, the crushing cutter and the transmission shaft are connected in a matching way through the key, so that the transmission shaft drives the crushing cutter to rotate through the key, and the concentricity of the two parts is increased by increasing the chamfer to reduce the bounce; by adopting the modes, the number of the assembled parts is large, the mounting precision is low, and the labor intensity of operators is increased.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the prior art, the utility model provides an integrated crushing cutter of a dry-method granulator, which is reasonable in structural design.

The technical scheme of the utility model is as follows:

the utility model provides a broken sword of integral type of dry process granulator, its characterized in that, includes the transmission shaft and sets up the broken sword on the transmission shaft, the transmission shaft is including the fixed connection portion, power transmission portion and the instrument installation department that set gradually, broken sword includes broken sword main part and sets up the broken sword blade in broken sword main part, first mounting hole and the second mounting hole that communicates with first mounting hole have been seted up in proper order along the axial in broken sword main part center, first mounting hole cooperatees with fixed connection portion for be connected between transmission shaft and the broken sword, the second mounting hole cooperatees with power transmission portion, be used for transmission shaft and broken sword power transmission.

Further, fixed connection portion is equipped with the external screw thread, first mounting hole inner wall is equipped with the internal thread, and first mounting hole and fixed connection portion spiro union cooperation.

Furthermore, the outer surface of the power transmission part adopts a conical surface, the second mounting hole adopts a conical hole, and the conical hole is matched with the conical surface in conical degree.

Furthermore, a spring layer groove is arranged between the fixed connecting part and the power transmission part.

Furthermore, a limiting convex ring is arranged between the power transmission part and the tool mounting part.

Furthermore, a first square rear root groove is formed in the main body of the crushing cutter in the circumferential direction far away from one end of the transmission shaft.

Furthermore, a second square rear root groove is formed in the circumferential direction of the tool mounting portion of the transmission shaft.

Furthermore, the inner wall of the first mounting hole is provided with an internal thread which is a forward thread, and the driving direction of the forward thread is opposite to that of the crushing knife; the external thread of the fixed connecting part adopts reverse threads.

Further, the crushing cutter main body and the crushing cutter blade are integrally formed.

Furthermore, the conicity of the conical surface and the conical hole adopts a Gilg conicity.

The utility model has the beneficial effects that: the structure is simple, the design is reasonable, the labor intensity of operators is reduced, and the product quality is ensured; the self-centering and self-locking capacity is generated by the interlocking connection of the positive threads and the negative threads and the combination of the same jacquard conical surfaces on the crushing cutter and the transmission shaft, the friction force of the jacquard conical surfaces can be effectively converted into the locking force, the transmission purpose is achieved by utilizing the friction of the jacquard conical surfaces, and the separation and falling of the crushing cutter and the transmission shaft due to the vibration generated in the rotating process are avoided.

Drawings

FIG. 1 is a schematic overall front view of the present invention;

FIG. 2 is a schematic diagram of the overall three-dimensional structure of the present invention;

FIG. 3 is a schematic view of the crushing blade of the present invention;

FIG. 4 is a schematic view of a drive shaft according to the present invention;

in the figure: 1-crushing knife, 101-first mounting hole, 102-second mounting hole, 103-first square back root groove, 104-crushing knife main body, 2-transmission shaft, 201-power transmission part, 202-skip layer groove, 203-fixed connection part, 204-second square back root groove, 205-limit convex ring, 206-tool mounting part.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

As shown in fig. 1 to 4, an integrated crushing blade of a dry granulator comprises a crushing blade 1, a first mounting hole 101, a second mounting hole 102, a first square heel groove 103, a crushing blade main body 104, a transmission shaft 2, a power transmission part 201, a skip layer groove 202, a fixed connection part 203, a second square heel groove 204, a limit convex ring 205 and a tool mounting part 206.

Example (b):

the integrated crushing cutter of the dry granulating machine comprises a transmission shaft 2 and a crushing cutter 1 arranged on the transmission shaft 2.

The transmission shaft 2 comprises a fixed connecting part 203, a power transmission part 201 and a tool mounting part 206 which are sequentially arranged, the crushing cutter 1 comprises a crushing cutter main body 104 and a crushing cutter blade 105 arranged on the crushing cutter main body 104, and the crushing cutter main body 104 and the crushing cutter blade 105 are integrally formed; the center of the crushing cutter main body 104 is sequentially provided with a first mounting hole 101 and a second mounting hole 102 communicated with the first mounting hole 101 along the axial direction, the first mounting hole 101 is matched with the fixed connecting part 203 and used for connecting the transmission shaft 2 with the crushing cutter 1, and the second mounting hole 102 is matched with the power transmission part 201 and used for power transmission of the transmission shaft 2 and the crushing cutter 1.

The fixed connecting part 203 is provided with external threads, the inner wall of the first mounting hole 101 is provided with internal threads, the first mounting hole 101 is in threaded fit with the fixed connecting part 203, specifically, the internal threads arranged on the inner wall of the first mounting hole 101 in the embodiment are forward threads, and the driving direction of the forward threads is opposite to that of the crushing knife 1; the external thread of the fixed connection part 203 is a reverse thread.

The outer surface of the power transmission part 201 adopts a conical surface, the second mounting hole 102 adopts a conical hole, and the conical hole is matched with the conical surface in conical degree; the conicity of the conical surface and the conical hole adopts a Gilg conicity, which is also called as a Gilg conical surface and a Gilg conical hole. The transmission purpose between the transmission shaft 2 and the crushing cutter 1 is achieved through the close fit friction of the conical surface and the conical hole, and meanwhile, certain mechanical sealing and dust prevention purposes can be achieved; in addition, the cleaning device can be soaked and cleaned without cleaning dead angles, and is convenient to disassemble and assemble.

A jump layer groove 202 is arranged between the fixed connecting part 203 and the power transmission part 201 to prevent the thread from locking; since the contact of the internal thread of the first mounting hole 101 provided without the jump-layer groove 202 with the power transmission portion 201 causes the thread to be locked, it is not easy to detach.

A limiting convex ring 205 is arranged between the power transmission part 201 and the tool mounting part 206, and the limiting convex ring 205 can be contacted with the end part of the crushing cutter 1 and is used for limiting the mounting of the transmission shaft 2.

A first square back root groove 103 is formed in the crushing cutter main body 104 in the circumferential direction at one end far away from the transmission shaft 2; the tool mounting portion 206 of the transmission shaft 2 is circumferentially provided with a second square rear root groove 204, and the first square rear root groove 103 and the second square rear root groove 204 are convenient for tools to directly detach the crushing cutter 1 and the transmission shaft 2.

The working process is as follows:

the crushing knife is directly arranged on the transmission shaft, the transmission shaft is clamped by a tool, then the jaw conical surface sockets on the transmission shaft and the crushing knife are roughly aligned, the crushing knife is manually and directly pushed into the crushing knife, the crushing knife and the jaw conical surface on the transmission shaft are directly guided and centered, and then the crushing knife and the jaw conical surface on the transmission shaft are manually screwed down along the spiral direction. The inner part of the crushing cutter and the transmission shaft are provided with the same jacquard conical surfaces and threads opposite to the driving rotating direction, the crushing cutter is automatically locked through resistance generated during rotation, and meanwhile, the friction force generated by locking between the jacquard conical surfaces is utilized to drive the crushing cutter to rotate, so that the purpose of rotation is achieved. The larger the resistance, the stronger the locking force, the larger the friction force, the stronger the transmission torque.

Claims

1. An integrated crushing knife of a dry granulating machine is characterized by comprising a transmission shaft (2) and a crushing knife (1) arranged on the transmission shaft (2), the transmission shaft (2) comprises a fixed connecting part (203), a power transmission part (201) and a tool mounting part (206) which are arranged in sequence, the crushing knife (1) comprises a crushing knife main body (104) and a crushing knife blade (105) arranged on the crushing knife main body (104), a first mounting hole (101) and a second mounting hole (102) communicated with the first mounting hole (101) are sequentially formed in the center of the crushing cutter main body (104) along the axial direction, the first mounting hole (101) is matched with the fixed connecting part (203), the second mounting hole (102) is matched with the power transmission part (201) and used for power transmission of the transmission shaft (2) and the crushing knife (1).

2. The integral type crushing cutter of the dry granulator according to claim 1, wherein the fixing connection part (203) is provided with external threads, the inner wall of the first mounting hole (101) is provided with internal threads, and the first mounting hole (101) is in threaded engagement with the fixing connection part (203).

3. The integrated crushing cutter of the dry granulator according to claim 1, wherein the outer surface of the power transmission part (201) is a conical surface, the second mounting hole (102) is a conical hole, and the conical hole is matched with the conical surface in conical degree.

4. The unitary crushing blade of a dry granulator according to claim 1, wherein a skip groove (202) is provided between the fixed connection part (203) and the power transmission part (201).

5. The integral type crushing knife of the dry granulator according to claim 1, wherein a limit protruding ring (205) is provided between the power transmission part (201) and the tool mounting part (206).

6. The unitary crushing blade of the dry granulator according to claim 1, wherein the crushing blade body (104) is provided with a first square heel groove (103) in the circumferential direction at the end far from the transmission shaft (2).

7. The unitary crushing blade of a dry granulator according to claim 1, wherein the tool mounting portion (206) of the transmission shaft (2) is circumferentially provided with a second square heel groove (204).

8. The integrated crushing cutter of the dry granulator according to claim 2, wherein the inner wall of the first mounting hole (101) is provided with a positive thread, and the positive thread is opposite to the driving direction of the crushing cutter (1); the external thread of the fixed connecting part (203) adopts reverse thread.

9. The unitary crushing blade for a dry granulator according to claim 1, wherein the crushing blade body (104) is formed integrally with the crushing blade piece (105).

10. The integrated crushing cutter of the dry granulator according to claim 3, wherein the tapers of the conical surface and the conical hole are of a Gilg taper.