CN114800147B

CN114800147B - A grinder for old and useless steel material

Info

Publication number: CN114800147B
Application number: CN202210465912.0A
Authority: CN
Inventors: 许春华; 孙建荣; 李长生; 许春梅; 朱小芳
Original assignee: Jiangsu Huajie Stainless Steel Product Co ltd
Current assignee: Jiangsu Huajie Stainless Steel Product Co ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2022-12-23
Anticipated expiration: 2042-04-29
Also published as: CN114800147A

Abstract

The invention relates to the technical field of resource recovery equipment, and discloses a grinding device for waste steel materials, which comprises a shell, wherein a driving motor is assembled in the shell, the driving motor is in transmission connection with a grinding disc through an output shaft, an air inlet valve is arranged on the side surface of the shell, a cooling flow passage is arranged in the grinding disc, and the cooling flow passage is communicated with a connecting pipe. This a grinder for old and useless steel material, the passageway of buckling that utilizes the heat exchanger to form, make the gas that flows through under the centrifugal force effect, impurity and liquid that contain in the separation gas, guarantee to get into the cleanness of gas in the pneumatic motor, thereby guarantee its normal operation, reduce its wearing and tearing, secondly, utilize the density difference drive coolant liquid that the temperature formed to flow at the cooling runner, the connecting pipe, heat exchanger mesocycle, the temperature of control abrasive disk, it is long when improving its continuous use, and simultaneously, utilize high temperature heating gas, improve gas pressure, the loss of pressure that causes when compensating gas passes through the heat exchanger.

Description

A grinder for old and useless steel material

Technical Field

The invention relates to the technical field of resource recovery, in particular to a grinding device for waste steel materials.

Background

In life, articles made of steel can be seen everywhere, and the iron element is an active element and is easily corroded chemically, so that the surface structure is damaged, and the structural strength is reduced.

In order to prolong the service life of steel products, the most common method is to paint the surface of the steel products to isolate air, however, after a lot of waste steel products are used for a long time, the paint surface is damaged, and rust is generated locally or completely, so when the waste steel products are recycled, renewed and reused, the surface of the waste steel products needs to be painted again, and in order to ensure the smoothness of the paint surface, waste parts need to be ground firstly.

The pneumatic polisher is the most common grinding tool, and it passes through high-pressure gas drive motor, and the drive is polished the dish and is rotated, polishes the object surface, but, the relative humidity of air is often more than 65%, and gas is after the compression condensation this moment, and is wet saturated air, smugglies a large amount of liquid water drops secretly, and simultaneously, the air compressor machine operation can constantly produce the carbide of abrasive dust, rusty slag and oil, and the air compressor machine commonly used does not have water oil separating's function, and profit can reduce air motor's life along with high-pressure humidity gets into air motor.

Secondly, when polishing, the severe friction takes place for the mill and material surface, can rapid heating up, generally speaking, when the polisher organism temperature is greater than 50 degrees and there is the sensation of scalding one's hand, need stop using, wait to cool off the back and just can continue to use, restricted the continuous use of polisher, reduce work efficiency.

Disclosure of Invention

Aiming at the defects of the background technology, the invention provides a technical scheme of a grinding device for waste steel materials, which separates liquid and impurities by utilizing a bent channel formed by a heat exchanger, and simultaneously utilizes absorbed heat to heat gas, compensates pressure loss and solves the problems in the background technology.

The invention provides the following technical scheme: the utility model provides a grinder for old and useless steel material, includes the casing, be equipped with driving motor in the casing, driving motor has the mill dish through output shaft transmission connection, the side of casing is equipped with the admission valve, it is equipped with the cooling runner in the dish to polish, cooling runner intercommunication has the connecting pipe, the connecting pipe intercommunication has the heat exchanger, be filled with the coolant liquid in cooling runner, connecting pipe, heat exchanger and the cooling runner to form a circulation runner jointly, be equipped with the chamber that holds that is used for holding the heat exchanger in the casing, the bottom that holds the chamber is equipped with the sealing member, the bottom and the admission valve intercommunication that hold the chamber, the top that holds the chamber communicates with driving motor's air inlet, be equipped with tortuous passageway in the heat exchanger.

Preferably, the heat exchanger includes an inner connecting cylinder fixedly connected with the output shaft, the upper and lower ends of the inner connecting cylinder are connected with the outer cylinder through radial communicating pipes, the communicating pipes at the upper end are communicated with the cooling flow passage, the communicating pipes at the lower part are communicated with the connecting pipes, two axially wavy heat exchange fins are arranged between the communicating pipes to form zigzag channels between adjacent communicating pipes, and the upper and lower ends of each heat exchange fin are respectively communicated with the communicating pipes at the upper and lower ends.

Preferably, the connecting pipe comprises an inner ring and an outer ring which are fixedly connected with the grinding disc, and the outer ring and the inner ring are communicated through a radial middle pipe.

Preferably, the driving motor is in transmission connection with the output shaft through a coupler, the coupler and the output shaft can move axially, the sealing element can move axially relative to the shell, the inner wall of the sealing element is fixedly connected with the output shaft, and the outer wall of the sealing element is in sealed sliding connection with the inner wall of the shell.

Preferably, the bottom of the accommodating cavity is provided with a discharge valve, and the discharge valve is communicated with the accommodating cavity and the outside.

The invention has the following beneficial effects:

1. this a grinder for old and useless steel material utilizes the passageway of buckling that the heat exchanger formed, makes the gaseous impurity and the liquid that contain in the separation gas under the centrifugal force effect of flowing through, guarantees to get into the cleanness of pneumatic motor internal gas to guarantee its normal operation, reduce its wearing and tearing, improve pneumatic motor's life and reliability.

2. This a grinder for old and useless steel material utilizes the density difference drive coolant liquid that the temperature formed to circulate in cooling flow channel, connecting pipe, heat exchanger and flows, and the temperature of control abrasive disc improves when its continuous use is long, simultaneously, utilizes high temperature heating gas, improves gas pressure, and the loss of pressure that causes when compensating gas passes through the heat exchanger guarantees work efficiency.

Drawings

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

FIG. 2 is a top view of a heat exchanger according to the present invention;

FIG. 3 is a side view of a heat exchanger according to the present invention;

FIG. 4 is a top view of the connecting tube of the present invention;

fig. 5 is a cross-sectional view of the coupling and output shaft of the present invention.

In the figure: 1. a housing; 2. a drive motor; 3. an output shaft; 4. grinding disc; 5. an intake valve; 6. a cooling flow channel; 7. a connecting pipe; 71. an outer ring; 72. an intermediate pipe; 73. an inner ring; 8. a heat exchanger; 81. an outer cylinder; 82. an inner connecting cylinder; 83. a communicating pipe; 84. a heat exchanger fin; 9. an accommodating chamber; 10. a seal member; 11. a coupling; 12. and a discharge valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, a grinding device for waste steel materials comprises a housing 1, a driving motor 2 is assembled in the housing 1, the driving motor 2 is in transmission connection with a polishing disc 4 through an output shaft 3, a reduction gear set is arranged between the driving motor 2 and the polishing disc 4 to increase torque and reduce rotation speed, the gear set and a corresponding balance weight are omitted in the drawing for simplicity, an air inlet valve 5 is arranged on the side surface of the housing 1, a control pressure plate and a control valve for adjusting flow are arranged on the air inlet valve 5, a cooling flow passage 6 is arranged in the polishing disc 4, the cooling flow passage 6 is communicated with a connecting pipe 7, the connecting pipe 7 is communicated with a heat exchanger 8, the cooling flow passage 6, the connecting pipe 7, the heat exchanger 8 and the cooling flow passage 6 are filled with cooling liquid and form a circulation flow passage together, the cooling liquid in the cooling flow passage 6 is heated, the density is reduced, and tends to flow to the edge under the action of centrifugal force, under the action of density difference, circulation flow is formed, centrifugal force generated during rotation is counteracted mutually, an oil supplementing valve is arranged on an output shaft 3, a containing cavity 9 used for containing a heat exchanger 8 is arranged in a shell 1, a sealing piece 10 is arranged at the bottom of the containing cavity 9, a connecting pipe between a connecting pipe 7 and the heat exchanger 8 penetrates through the sealing piece 10, the heat exchanger 8 and the sealing piece 10 rotate synchronously along with the output shaft 3 and a polishing disc 4, the top of the heat exchanger 8 is communicated with a channel arranged on the axis of the output shaft 3 and further communicated with a cooling flow channel 6, the bottom of the containing cavity 9 is communicated with an air inlet valve 5, the top of the containing cavity 9 is communicated with an air inlet of a driving motor 2, a zigzag channel is arranged in the heat exchanger 8, oil and water in the gas are separated under the action of centrifugal force when the gas passes through the gas, clean gas enters the driving motor 2 to drive a rotor of the driving motor 2 to rotate so as to drive the output shaft 3 to rotate, the gas is discharged from the exhaust port of the drive motor 2, which is arranged in parallel with the intake valve 5, and since the temperature of the gas is increased when exchanging energy with the accommodating chamber 9, the pressure is increased, thereby compensating for the pressure loss caused by the accommodating chamber 9.

Referring to fig. 2 and 3, the heat exchanger 8 includes an inner connecting tube 82 fixedly connected to the output shaft 3, the upper and lower ends of the inner connecting tube 82 are connected to an outer tube 81 through radial communicating tubes 83, a protruding ring is disposed outside the outer tube 81 for sealing and sliding with the inner wall of the housing 1 to prevent pressure leakage, wherein the upper communicating tube 83 is communicated with the cooling flow channel 6, the lower communicating tube 83 is communicated with the connecting tube 7, the heat exchanger 8 can be communicated with the cooling flow channel 6 and the connecting tube 7 through a water slip ring disposed on the inner connecting tube 82, or can be directly communicated with the cooling flow channel and the connecting tube 7, the whole body rotates along with the output shaft 3, the upper and lower communicating tubes 83 are connected with a partition plate to divide the upper and lower communicating tubes into a plurality of independent spaces, the partition plate is not shown in the drawing, an axial wave-shaped heat exchange plate 84 is disposed between the two communicating tubes 83 to form a zigzag channel between the adjacent communicating tubes 83, the gas passes through the channel, the direction of the gas is constantly changed, the heavier oil-water is thrown onto the plate under the action of centrifugal force, and the upper and lower communicating tubes 83 of the upper and lower ends of the heat exchange plate 84 are respectively communicated with the upper and lower communicating tubes 83 to ensure the liquid flow.

Referring to fig. 4, the connecting pipe 7 includes an inner ring 73 and an outer ring 71 fixedly connected to the polishing disc 4, the outer ring 71 and the inner ring 73 are communicated through a radial middle pipe 72, and the coolant is heated and then collected in the outer ring 71, flows to the inner ring 73 through the middle pipe 72, and then flows vertically to the heat exchanger 8 through the inner ring 73.

Wherein, please refer to fig. 1 and fig. 5, driving motor 2 is connected with output shaft 3 transmission through shaft coupling 11, reduction gear can be established between shaft coupling 11 and driving motor 2, shaft coupling 11 and output shaft 3 can axial displacement, the two is through the stopper, spacing groove fit, sealing member 10 can be for casing 1 axial displacement, the inner wall and the output shaft 3 fixed connection of sealing member 10, the outer wall is sealed sliding connection with the inner wall of casing 1, the lower extreme is equipped with limit structure, avoid sealing member 10 roll-off, when ventilating, air pressure drive sealing member 10 drives output shaft 3 and moves, guarantee when polishing, polish 4 keep invariable to the pressure of object, shaft coupling 11 and output shaft 3 have sufficient fit depth, guarantee that radial effort is mainly born by shaft coupling 11.

Wherein, hold the bottom of chamber 9 and be equipped with discharge valve 12, discharge valve 12 intercommunication holds chamber 9 and outside, and after discharge valve 12 opened, inside remaining liquid is clear away to atmospheric pressure.

The working principle and the working process of the invention are as follows:

when the gas-cooling type gas-cooling grinding disc is started, air pressure enters the accommodating cavity 9 and then enters the driving motor 2 through the heat exchanger 8 to drive the rotor of the driving motor 2 to rotate, when gas passes through the heat exchanger 8, water and oil with large mass are thrown onto the surface of the heat exchanger 8 and flow down under the action of centrifugal force to separate the water and oil in the gas, when the grinding disc 4 is ground, the oil in the cooling channel 6 absorbs heat and is heated, meanwhile, the hot oil flows to the edge under the action of centrifugal force, and the high-temperature oil automatically flows upwards along the connecting pipe 7 under the action of density difference along with temperature rise to form convection, at the moment, the centrifugal force of the hydraulic oil is mutually counteracted to have small influence on the hydraulic oil, the cooling liquid exchanges heat with the gas in the heat exchanger 8 to achieve the effect of cooling, the effect is achieved by utilizing the temperature rise to improve the gas pressure and compensate the pressure lost by the gas, after the gas-cooling type gas-cooling grinding disc is used, the discharging valve 12 is opened to enable the gas to be directly discharged from the discharging valve 12 to remove residual liquid, and when the residual liquid is cleaned, the grinding disc 4 is locked to enable the residual liquid to be prevented from rotating.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a grinder for old and useless steel material, includes casing (1), be equipped with driving motor (2) in casing (1), driving motor (2) are connected with through output shaft (3) transmission and beat mill dish (4), the side of casing (1) is equipped with admission valve (5), its characterized in that: a cooling flow passage (6) is arranged in the polishing disc (4), the cooling flow passage (6) is communicated with a connecting pipe (7), the connecting pipe (7) is communicated with a heat exchanger (8), the cooling flow passage (6), the connecting pipe (7), the heat exchanger (8) and the cooling flow passage (6) are filled with cooling liquid, and together form a circulating flow passage, an accommodating cavity (9) for accommodating a heat exchanger (8) is arranged in the shell (1), the bottom of the accommodating cavity (9) is provided with a sealing element (10), the bottom of the accommodating cavity (9) is communicated with the air inlet valve (5), the top of the accommodating cavity (9) is communicated with an air inlet of the driving motor (2), a zigzag channel is arranged in the heat exchanger (8), the heat exchanger (8) comprises an inner connecting cylinder (82) fixedly connected with the output shaft (3), the upper end and the lower end of the inner connecting cylinder (82) are connected with an outer cylinder (81) through radial communicating pipes (83), the communicating pipes (83) at the upper end are communicated with the cooling flow passage (6), the communicating pipes (83) at the lower part are communicated with the connecting pipe (7), axial wave-shaped heat exchange fins (84) are arranged between the two communicating pipes (83) to form a zigzag channel between the adjacent communicating pipes (83), the upper end and the lower end of the heat exchange plate (84) are respectively communicated with the communicating pipes (83) at the upper end and the lower end.

2. The grinding device for the waste steel materials according to claim 1, characterized in that: the connecting pipe (7) comprises an inner ring (73) and an outer ring (71) which are fixedly connected with the polishing disc (4), and the outer ring (71) and the inner ring (73) are communicated through a radial middle pipe (72).

3. The grinding device for the waste steel materials according to claim 1, characterized in that: the driving motor (2) is in transmission connection with the output shaft (3) through a coupler (11), the coupler (11) and the output shaft (3) can move axially, the sealing element (10) can move axially relative to the shell (1), the inner wall of the sealing element (10) is fixedly connected with the output shaft (3), and the outer wall of the sealing element is in sealed sliding connection with the inner wall of the shell (1).

4. The grinding device for the waste steel materials according to claim 1, characterized in that: the bottom of the accommodating cavity (9) is provided with a discharge valve (12), and the discharge valve (12) is communicated with the accommodating cavity (9) and the outside.