CN217462926U

CN217462926U - Structure of split type main shaft of rotor type sand mixer

Info

Publication number: CN217462926U
Application number: CN202123407446.0U
Authority: CN
Inventors: 徐定政
Original assignee: DONGFENG FORGING CO LTD
Current assignee: DONGFENG FORGING CO LTD
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-09-20
Anticipated expiration: 2031-12-30

Abstract

The utility model discloses a structure of split type main shaft of rotor formula roller mill, including first stand, left lower half stand, right lower half stand and bearing frame. Has the advantages that: the utility model discloses a set up first stand, left side second stand, right side second stand and rotary joint, first stand combines together with left side second stand and right side second stand and is divided into two along radial one with the main shaft stand in length direction, wherein the latter half is divided into two along the axis, after changing into this kind of split type structure, it is very convenient to make the dismouting of bearing frame, and the preparation degree of difficulty coefficient also reduces by a wide margin, not only reduce the change time of stand by a wide margin, and reduce maintenance intensity of labour by a wide margin, still reduce the degree of difficulty coefficient of this part preparation, and adopt rotary joint as the transitional coupling at main shaft water adding device sound joint position, can solve the problem of leaking when adding water effectively, promote the molding sand quality, shorten the molding sand system time that thoughtlessly, guarantee main shaft structure practicality.

Description

Structure of split type main shaft of rotor type sand mixer

Technical Field

The utility model relates to a rotor formula roller mill technical field, concretely relates to structure of split type main shaft of rotor formula roller mill.

Background

The sand mixer is a sand processing device widely applied to the casting industry, and can be divided into the following steps according to the technical characteristics of sand mixing: a rolling wheel type sand mixer mainly using rolling and rubbing functions; a blade type sand mixer mainly using mixing action; the reverse flow type or rotor type sand mixer with rubbing and grinding and mixing functions and the balance wheel type sand mixer with rolling and mixing functions. The sand mixer can be divided into an intermittent sand mixer and a continuous sand mixer according to working properties.

The structure of the split type main shaft of the existing rotor type sand mixer is complex, the requirement on manufacturing accuracy is high, the difficulty coefficient of manufacturing is high, the assembly is complex, and in the actual disassembly and assembly process, the problem that an old bearing seat cannot be disassembled and a new bearing seat cannot be assembled is often caused, the bearing seat is taken out after an old stand column is cut into a plurality of blocks, the accuracy of the new stand column cannot be reached when the new stand column is manufactured, the bearing seat cannot be assembled, meanwhile, the water seal is divided into an upper half water seal and a lower half water seal, the upper half water seal rotates during working, the lower half water seal is static, the contact surface of the two half water seals is made of common rigid materials, the two halves are pressed by the elasticity of a spring, the sealing effect on water is unsatisfactory, the problem of water leakage often occurs, the leaked water enters the bearing, the damage process of the bearing is accelerated, and the practicability of the main body structure is low.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to overcome the defects of the prior art, the structure of the split type main shaft of the rotor type sand mixer is provided, the problems that the split type main shaft of the existing rotor type sand mixer is complex in structure, high in manufacturing precision requirement, high in manufacturing difficulty coefficient and complex in assembly, an old bearing seat cannot be dismounted and a new bearing seat cannot be mounted in the actual dismounting and assembling process are solved, the final result is that the bearing seat is taken out after an old upright post is cut into a plurality of pieces, the bearing seat cannot be mounted in the new upright post due to the fact that the precision of the new upright post is difficult to achieve in manufacturing, meanwhile, the water seal is divided into an upper half water seal and a lower half water seal, the upper half water seal rotates and the lower half water seal is still in work, contact surfaces of the two half water seals are made of common steel materials, the two half water seals are pressed by the elasticity of a spring, the water sealing effect is not ideal, the water leakage problem often occurs, and leaked water enters the bearing, the damage process of the bearing is accelerated, and the problem of lower practicability of the main body structure is caused.

(II) technical scheme

The utility model discloses a following technical scheme realizes: the utility model provides a structure of split type main shaft of rotor formula roller mill, including first stand, left side lower half stand, right side lower half stand and bearing frame, install first stand bottom one side left side lower half stand, first stand bottom opposite side is provided with right side lower half stand, left side lower half stand and right side lower half stand bottom internally mounted has the bearing frame, the bearing frame bottom is provided with rotary joint, rotary joint one end is connected with the transition water pipe, transition water pipe one end is provided with the shower.

Further, the left lower half column and the right lower half column are connected with the upper half column through flanges, and the left lower half column is connected with the right lower half column through flanges.

By adopting the technical scheme, the upper half upright column, the left lower half upright column and the right lower half upright column are combined to divide the main shaft upright column into two parts along the length direction along the radial direction, the upper part and the lower part are connected by adopting the circular flange, the lower part is divided into two parts along the axis, and the left half part and the right half part are connected by adopting the square flange, so that the bearing seat is very convenient to disassemble and assemble after the split structure is changed, and the manufacturing difficulty coefficient is greatly reduced.

Further, the bearing seat with left side half stand and right side half stand all passes through bolted connection.

By adopting the technical scheme, the bearing seat connects the rotary joint with the main shaft.

Furthermore, the rotary joint is connected with the bearing seat through a bolt, and the transition water pipe is connected with the rotary joint through threads.

By adopting the technical scheme, the rotary joint is adopted as the transitional connection of the movable and static joint parts of the main shaft water adding device, so that the problem of water leakage during water adding can be effectively solved, and the improvement of the quality of the molding sand is influenced to a certain degree.

Furthermore, the transition water pipe all runs through the bearing frame, the left lower half upright post, the right lower half upright post and the upper half upright post.

By adopting the technical scheme, the transition water pipe guides water in the rotary joint into the spray pipe.

Furthermore, the spray pipe is connected with the transition water pipe in an inserting mode, and the spray pipe is connected with the upper half upright post in an inserting mode.

Through adopting above-mentioned technical scheme, the shower sprays the water on the molding sand.

(III) advantageous effects

Compared with the prior art, the utility model, following beneficial effect has:

for solving the problems that the structure of the split main shaft of the existing rotor type sand mixer is complex, the requirement on the manufacturing precision is high, the difficulty coefficient of the manufacturing is high, the assembly is complex, in the actual disassembly and assembly process, the problems that the old bearing seat cannot be disassembled and the new bearing seat cannot be assembled can often occur, the final result is that the old stand column is taken out after being cut into a plurality of blocks, the new stand column cannot be assembled because the precision is difficult to reach when the new stand column is manufactured, the bearing seat cannot be assembled, meanwhile, the water seal is divided into an upper half water seal and a lower half water seal, the upper half water seal rotates during the work, the lower half water seal is still, the contact surfaces of the two half water seals are made of common rigid materials, the two halves are pressed by the elasticity of a spring, the sealing effect on water is not ideal, the water leakage problem often occurs, the leaked water enters the bearing, the damage process of the bearing is accelerated, and the problem that the practicability of the main structure is low is caused, the utility model discloses a split main structure of a sand mixer, The lower left half column, the lower right half column and the rotary joint, the upper half column is combined with the lower left half column and the lower right half column to divide the spindle column into two along the length direction along the radial direction, wherein the lower half column is divided into two along the axis, after the split structure is changed into, the bearing seat is very convenient to disassemble and assemble, the manufacturing difficulty coefficient is greatly reduced, the replacement time of the column is greatly reduced, the maintenance labor intensity is greatly reduced, the difficulty coefficient of the part manufacturing is also reduced, the rotary joint is adopted as the transitional connection of the dynamic and static joint parts of the spindle water adding device, the water leakage problem in the water adding process can be effectively solved, the molding sand quality is improved, the mixing time is shortened, and the practicability of the spindle structure is ensured.

Drawings

Fig. 1 is a structural schematic diagram of a structure of a split main shaft of a rotor type sand mixer according to the present invention;

fig. 2 is the utility model discloses a structure left side view of split type main shaft of rotor formula roller mill.

The reference numerals are explained below:

1. a shower pipe; 2. a transition water pipe; 3. an upper half column; 4. a lower left half upright; 5. a bearing seat; 6. a rotary joint; 7. right lower half column.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1-2, the structure of the split main shaft of the rotor type sand mixer in the embodiment includes an upper half column 3, a left lower half column 4, a right lower half column 7 and a bearing seat 5, the left lower half column 4 is installed at one side of the bottom end of the upper half column 3, the right lower half column 7 is installed at the other side of the bottom end of the upper half column 3, the upper half column 3 is combined with the left lower half column 4 and the right lower half column 7 to divide the main shaft column into two parts along the length direction along the radial direction, meanwhile, the upper part and the lower part are connected by a circular flange, the lower part is divided into two parts along the axis, the left half and the right half are connected by a square flange, after the split structure is changed, the bearing seat 5 is very convenient to disassemble and assemble, the difficulty coefficient of manufacture is also greatly reduced, the bearing seats 5 are installed inside the bottom ends of the left lower half column 4 and the right lower half column 7, the bearing seat 5 connects the rotary joint 6 with the main shaft, 5 bottoms of bearing frame are provided with rotary joint 6, adopt rotary joint 6 as the main shaft to add the transitional coupling at water installation sound joint position, can solve the problem of leaking when adding water effectively, promote the influence that has the certain degree to the molding sand quality, and 6 one end of rotary joint is connected with transition water pipe 2, and transition water pipe 2 is leading-in to shower 1 with the water in the

rotary joint

6, and 2 one ends of transition water pipe are provided with shower 1, and shower 1 sprays water on the molding sand.

As shown in fig. 1-2, in this embodiment, the left lower half column 4 and the right lower half column 7 are both connected to the upper half column 3 through flanges, the left lower half column 4 is connected to the right lower half column 7 through flanges, the bearing seat 5 is connected to the left lower half column 4 and the right lower half column 7 through bolts, the rotary joint 6 is connected to the bearing seat 5 through bolts, and the transition water pipe 2 is connected to the rotary joint 6 through threads.

As shown in fig. 1-2, in this embodiment, the transition water pipe 2 penetrates through the bearing seat 5, the left lower half column 4, the right lower half column 7 and the upper half column 3, the shower pipe 1 is inserted into the transition water pipe 2, and the shower pipe 1 is inserted into the upper half column 3.

The specific implementation process of this embodiment is as follows: firstly, the main shaft is arranged in the sand mixer, the rotary joint 6 is connected with an external water source, in the using process of the main shaft, the transition water pipe 2 guides water in the rotary joint 6 into the spray pipe 1, the spray pipe 1 sprays the water onto the molding sand, and the rotary joint 6 is adopted as the transition connection of the dynamic and static joint parts of the main shaft water adding device, so that the problem of water leakage in the water adding process can be effectively solved, the quality improvement of the molding sand has a certain influence on the quality of the molding sand, when the main shaft needs to be maintained, the upper half upright post 3 is combined with the lower left half upright post 4 and the lower right upright post 7 to divide the main shaft upright post into two parts along the length direction along the radial direction, wherein the lower half part is divided into two parts along the axis, after the split structure is changed, the dismounting of the bearing seat 5 is very convenient, the manufacturing difficulty coefficient is also greatly reduced, the replacement time of the upright posts is greatly reduced, and greatly reduce the labor intensity of maintenance and the difficulty coefficient of the manufacture of the part.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a structure of split type main shaft of rotor formula roller mill which characterized in that: including first-half stand (3), left side lower half stand (4), right side lower half stand (7) and bearing frame (5), install first-half stand (3) bottom one side left side lower half stand (4), first-half stand (3) bottom opposite side is provided with right side lower half stand (7), left side lower half stand (4) and right side lower half stand (7) bottom internally mounted has bearing frame (5), bearing frame (5) bottom is provided with rotary joint (6), rotary joint (6) one end is connected with transition water pipe (2), transition water pipe (2) one end is provided with shower (1).

2. The structure of the split type main shaft of the rotor type sand mixer as claimed in claim 1, wherein: the left lower half column (4) and the right lower half column (7) are connected with the upper half column (3) through flanges, and the left lower half column (4) is connected with the right lower half column (7) through flanges.

3. The structure of the split type main shaft of the rotor type sand mixer as claimed in claim 1, wherein: and the bearing seat (5) is connected with the left lower half upright post (4) and the right lower half upright post (7) through bolts.

4. The structure of the split type main shaft of the rotor type sand mixer as claimed in claim 1, wherein: the rotary joint (6) is connected with the bearing seat (5) through a bolt, and the transition water pipe (2) is connected with the rotary joint (6) through threads.

5. The structure of the split type main shaft of the rotor type sand mixer as claimed in claim 1, wherein: the transition water pipe (2) penetrates through the bearing seat (5), the left lower half upright post (4), the right lower half upright post (7) and the upper half upright post (3).

6. The structure of the split type main shaft of the rotor type sand mixer as claimed in claim 1, wherein: the spraying pipe (1) is connected with the transition water pipe (2) in an inserted mode, and the spraying pipe (1) is connected with the upper half upright post (3) in an inserted mode.