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CN212493485U - Spiral pusher mandrel structure of horizontal screw machine - Google Patents

Spiral pusher mandrel structure of horizontal screw machine Download PDF

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Publication number
CN212493485U
CN212493485U CN202020656865.4U CN202020656865U CN212493485U CN 212493485 U CN212493485 U CN 212493485U CN 202020656865 U CN202020656865 U CN 202020656865U CN 212493485 U CN212493485 U CN 212493485U
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China
Prior art keywords
spiral
spiral body
conical
materials
pusher
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CN202020656865.4U
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Chinese (zh)
Inventor
杨超
高建生
王存林
卢仁伟
朱兆帅
陈鑫
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CSSC Nanjing Luzhou Machine Co Ltd
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CSSC Nanjing Luzhou Machine Co Ltd
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Abstract

The utility model discloses a horizontal screw machine spiral pusher mandrel structure, which consists of a column spiral body, a cone spiral body and a baffle plate, wherein the spiral pusher is divided into a big end and a small end according to the outer diameter dimension, a feed pipe enters a cloth bin from the small end of the spiral pusher, the cloth bin is an inner cavity formed by the cone spiral body, the column spiral body and the baffle plate of the spiral pusher, the three are sequentially connected along the feeding direction of materials, the baffle plate is arranged along the circumferential direction of the inner wall of the column spiral body, the baffle plate is provided with a bulge which can lead the materials to rebound and prevent the reverse flow from entering the cone spiral body towards the direction of the feed pipe, a first outlet communicated with the cloth bin is arranged along the circumference of the column spiral body, the big end of the cone spiral body adopts a conical surface structure, the utility model improves the rigidity of the spiral mandrel, reduces the reverse flow of the materials and, the operation load and the vibration intensity of the centrifugal machine are reduced, and the service life of the equipment is prolonged.

Description

Spiral pusher mandrel structure of horizontal screw machine
Technical Field
The utility model relates to a spiral pusher mandrel structure crouches in spiral shell machine, specific novel mandrel structure that says so belongs to engineering machine tool technical field.
Background
The horizontal screw centrifuge is a settling equipment with horizontal screw discharging and continuous operation. The working principle is that the rotary drum and the spiral pusher rotate at a high speed in the same direction at a certain rotation speed difference, materials are continuously introduced into a material distribution bin of the spiral pusher through a feeding pipe, enter the rotary drum after being accelerated, heavy solid matters are deposited on the wall of the rotary drum to form a slag layer under the action of centrifugal force, and the spiral pusher continuously pushes the deposited solid matters to the conical end of the rotary drum and pushes the solid matters out of the machine through a slag outlet. The feeding mode adopts the feeding of the small end of the spiral pusher, the length of a feeding pipe can be reduced, the breakage of the feeding pipe is avoided, but a large amount of material accumulation is generated when partial materials enter a space between the outer side of the distributing device and a mandrel of the spiral pusher in a countercurrent mode, and therefore the bearing at the small end of the spiral pusher is damaged after the bearing is subjected to material feeding due to sealing failure; meanwhile, a large amount of accumulated materials can cause the spiral pusher to generate eccentric force, increase the operation load and the vibration intensity of the centrifugal machine and influence the service life of equipment.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to prevent that the material from getting into the space between the distributing device outside and the spiral pusher mandrel against the current, provide a novel spiral pusher mandrel structure.
The utility model discloses a solve above-mentioned technical problem and adopt following technical scheme: the utility model provides a spiral pusher mandrel structure crouches spiral shell machine, comprises post spirochaeta, awl spirochaeta and baffle, treats that the material of separation gets into the cloth feed bin from spiral pusher through installing the inlet pipe on the external bearing seat, spiral pusher divide into main aspects and tip according to its external diameter size, the inlet pipe gets into cloth feed bin, its characterized in that by spiral pusher tip: the distribution bin is an inner cavity formed by a conical spiral body, a column spiral body and a partition plate of the spiral pusher, the conical spiral body, the column spiral body and the partition plate are sequentially connected along the feeding direction of materials, the partition plate is arranged along the circumferential direction of the inner wall of the column spiral body, the partition board is provided with a bulge which can lead the material to rebound and prevent the material from reversely flowing into the conical spiral body in the direction towards the feeding pipe, a first outlet communicated with the material distributing bin is arranged along the circumference of the cylindrical spiral body, the big end of the conical spiral body adopts a conical surface structure, the conical surface structure is one part of the conical spiral body, because the material has a certain speed when entering the material distributing bin from the feeding pipe, most of the material can enter the rotary drum from the first outlet after rebounding through the clapboard, but a small part of the conical spiral body can reversely bounce back to the conical spiral body, and the part can flow back to the material distribution bin along the conical surface of the conical spiral body under the action of centrifugal force and then enters the rotary drum from the first outlet. If the feeding amount exceeds the rated processing amount of the horizontal screw machine, the feeding amount is considered to be too large, the rebounded materials cannot flow back to the material distribution bin along the conical surface too much, the materials exceeding the rated processing amount of the horizontal screw machine flow reversely along the feeding direction over the conical surface, two sections of grooves are arranged on the conical body, second outlets for preventing a small amount of reverse flow materials from being accumulated are symmetrically arranged in the middle of each groove, and the small amount of reverse flow materials can enter the rotary drum from the second outlets.
Furthermore, the length of the bulge of the partition board is 65mm, the bulge and the end face of the partition board are in smooth transition, and the radian is R45 mm.
Furthermore, the first outlet is eight openings which are annularly arranged along the circumference of the cylindrical spiral body, so that the spiral material pusher can be ensured to be quickly separated and discharged when rotating.
Furthermore, the top end of the protrusion extends into the lower end of the first outlet, and the extending length is 15 mm.
Furthermore, the second outlets are uniformly distributed along the circumference of the middle part of the conical spiral groove, and the number of the second outlets is at least eight.
Furthermore, the conical spiral body and the conical plate are integrally formed, so that a material accumulation space is avoided and the rigidity of the mandrel is improved.
The utility model reduces the number of parts, has simple structure and reduces the cost; the rigidity of the spiral mandrel is improved, and the welding deformation is reduced; the material accumulation space is eliminated, the material reverse flow is reduced, a small amount of reverse flow materials can be discharged in time, the eccentric force is prevented from being generated, the operation load and the vibration intensity of the centrifugal machine are reduced, and the service life of the equipment is prolonged.
Drawings
FIG. 1 is a schematic view of the spindle structure of the original screw pusher.
Description of the drawings: 1 column spirochaeta, 2 baffle plates, 3 outlet, 4 conical plates, 5 outlet, 6 conical spirochaeta and 7 feed pipes.
Fig. 2 is a schematic structural view of the spindle of the screw pusher of the present invention.
Description of the drawings: 1 column spiral body, 2 baffle, 3 outlet, 4 cone spiral bodies, 5 outlet and 6 feeding pipes.
Detailed Description
The technical scheme of the utility model is further explained in detail with the attached drawings as follows:
the utility model provides a novel spiral pusher mandrel structure.
Referring to fig. 1, after materials with a certain flow rate enter a material distribution bin from a feeding pipe 7, the material distribution bin is formed by combining a cylindrical spiral body 1, a partition plate 2 and a conical plate 4, most of the materials enter the inner wall of a rotary drum from an outlet 3 for separation, a small part of the materials enter the conical spiral body 6 in a reverse flow mode due to the rebounding effect of the partition plate 2, most of the materials enter the rotary drum from an outlet 5, and because the outlets 5 are uniformly distributed at the circumference, part of the materials are still accumulated in a material accumulation space formed by the outer side of the conical plate 4 and the conical spiral body 6 after long-time use, an eccentric force can be generated by a spiral material pusher, in addition, due to the existence of the outlet 5, the rigidity and the inherent frequency of a mandrel can be reduced, the operation load and the vibration intensity.
Referring to fig. 2, the improved spiral pusher mandrel has the advantages that the structure of the partition plate 2 is improved, so that most of materials rebound to enter the outlet 3, and the materials are prevented from reversely flowing to enter the conical spiral body; secondly, the conical plate and the conical spiral body are integrated, so that a material accumulation space is avoided, the number of outlets is reduced, the rigidity of the mandrel is improved, and a small amount of backflow materials can be discharged from the outlets 5. The operation stability of the spiral pusher is improved, and the performance and the service life of the whole equipment are improved.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration only, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the claims and their equivalents.

Claims (6)

1. The utility model provides a spiral pusher mandrel structure crouches spiral shell machine, comprises post spirochaeta, awl spirochaeta and baffle, treats that the material of separation gets into the cloth feed bin from spiral pusher through installing the inlet pipe on the external bearing seat, spiral pusher divide into main aspects and tip according to its external diameter size, the inlet pipe gets into cloth feed bin, its characterized in that by spiral pusher tip: the distribution bin is an inner cavity formed by a conical spiral body, a column spiral body and a partition plate of a spiral material pusher, the three are sequentially connected along the feeding direction of materials, the partition plate is arranged along the circumferential direction of the inner wall of the column spiral body, the partition plate is provided with a bulge capable of rebounding the materials and preventing the materials from reversely flowing into the conical spiral body in the direction towards a feeding pipe, a first outlet communicated with the distribution bin is arranged along the circumference of the column spiral body, the large end of the conical spiral body adopts a conical surface structure, the conical surface structure is a part of the conical spiral body, if the feeding amount exceeds the rated treatment amount of a horizontal spiral shell machine, the feeding amount is considered to be too large, the rebounded materials cannot flow back to the distribution bin along the conical surface too much, the materials exceeding the rated treatment amount of the horizontal spiral shell machine flow over the conical surface and flow reversely along the feeding, the conical spiral body is provided with two sections of grooves near the, a small amount of counter-current material will enter the drum from the second outlet.
2. The horizontal screw auger mandrel structure of claim 1, wherein: the length of the bulge of the partition board is 65mm, the bulge and the end face of the partition board are in smooth transition, and the radian is R45 mm.
3. The horizontal screw auger mandrel structure of claim 2, wherein: the first outlet is eight openings which are annularly arranged along the circumference of the cylindrical spiral body so as to ensure that materials can be quickly separated and discharged when the spiral pusher rotates.
4. The horizontal screw auger mandrel structure of claim 2, wherein: the top end of the protrusion extends into the lower end of the first outlet, and the extending length is 15 mm.
5. The horizontal screw auger mandrel structure of claim 1, wherein: the second outlets are uniformly distributed along the circumference of the middle part of the conical spiral groove, and the number of the second outlets is at least eight.
6. The horizontal screw auger mandrel structure of claim 1, wherein: the conical spiral body and the conical plate are integrally formed, so that a material accumulation space is avoided and the rigidity of the mandrel is improved.
CN202020656865.4U 2020-04-26 2020-04-26 Spiral pusher mandrel structure of horizontal screw machine Active CN212493485U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020656865.4U CN212493485U (en) 2020-04-26 2020-04-26 Spiral pusher mandrel structure of horizontal screw machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020656865.4U CN212493485U (en) 2020-04-26 2020-04-26 Spiral pusher mandrel structure of horizontal screw machine

Publications (1)

Publication Number Publication Date
CN212493485U true CN212493485U (en) 2021-02-09

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111420811A (en) * 2020-04-26 2020-07-17 南京中船绿洲机器有限公司 Spiral pusher mandrel structure of horizontal screw machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111420811A (en) * 2020-04-26 2020-07-17 南京中船绿洲机器有限公司 Spiral pusher mandrel structure of horizontal screw machine
CN111420811B (en) * 2020-04-26 2024-12-10 南京中船绿洲机器有限公司 A spiral pusher spindle structure for a horizontal screw machine

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