CN113370081A - Grinding machine based on gas phase change cooling - Google Patents
Grinding machine based on gas phase change cooling Download PDFInfo
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- CN113370081A CN113370081A CN202110875050.4A CN202110875050A CN113370081A CN 113370081 A CN113370081 A CN 113370081A CN 202110875050 A CN202110875050 A CN 202110875050A CN 113370081 A CN113370081 A CN 113370081A
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- inner pipe
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/02—Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B27/00—Other grinding machines or devices
- B24B27/02—Bench grinders
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- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
Abstract
The application particularly relates to a grinding machine based on gas phase change cooling, which belongs to the field of grinding tool equipment and comprises a grinding wheel body, a rotating shaft, a transmission pipeline, heat exchange equipment and a speed reduction motor, wherein a first groove is formed in one side of the grinding wheel body, a first inner pipe is arranged in the first groove, a flowing gap is formed between the first inner pipe and the bottom surface of the first groove, and a first annular cavity is formed between the first inner pipe and the groove; the rotating shaft comprises an outer pipe and a second inner pipe arranged in the outer pipe, a second annular cavity is arranged between the outer pipe and the second inner pipe, the second inner pipe is communicated with the first inner pipe, and the first annular cavity is communicated with the second annular cavity; the transmission pipeline comprises an input pipeline and an output pipeline, the input pipeline is communicated with the second inner pipe, and the output pipeline is communicated with the outer pipe. Liquid cooling fluid flows in from the first inner tube, and when the liquid cooling fluid passes through the flow gap and the first annular cavity, the heat generated by the end face and the side curved surface of the grinding wheel body is absorbed, and the heat is vaporized in the flow gap and the first annular cavity, so that the grinding wheel body can be effectively cooled by utilizing latent heat of vaporization.
Description
Technical Field
The application relates to the field of grinding tool equipment, in particular to a grinding wheel machine based on gas phase change cooling.
Background
The grinding wheel is a bonded grinding tool which is formed by bonding abrasive materials on a substrate by a bonding agent to form a certain shape and has certain strength. In the grinding process of the grinding wheel, a large amount of heat is generated due to high-speed friction between the grinding wheel and a workpiece, so that the temperature of a grinding wheel base body is rapidly increased, the bonding part of the grinding material and the base body is deformed and damaged, even abrasive particles are subjected to high-temperature instability, high-temperature oxidation and diffusion, and the abrasive particles of the grinding wheel are abraded and the grinding characteristic of the grinding wheel is reduced. Therefore, the grinding wheel and the workpiece are required to be cooled by spraying cooling liquid. However, for high-speed superhard grinding, the linear velocity is very high, and the cooling liquid is blocked by the airflow barrier formed by the high-speed rotation of the grinding wheel, so that the cooling liquid sprayed from the outside cannot effectively cool the grinding wheel for high-speed superhard grinding.
Disclosure of Invention
The application provides a refrigerated abrasive machine based on gaseous phase change to solve the technical problem that can't effectively cool down to the emery wheel of high-speed superhard grinding among the prior art.
A grinder based on vapor phase change cooling, comprising:
the grinding wheel comprises a grinding wheel body, wherein a first groove is formed in one side of the grinding wheel body, a first inner pipe is arranged in the first groove, a flowing gap is formed between the end face, facing the first groove, of the first inner pipe and the bottom face of the first groove, a first annular cavity is formed between the first inner pipe and the groove, and the flowing gap and the first annular cavity are used for containing cooling fluid;
the rotating shaft comprises an outer pipe and a second inner pipe arranged in the outer pipe, a second annular cavity is arranged between the outer pipe and the second inner pipe, the outer pipe is coaxially connected with the grinding wheel body, the second inner pipe is communicated with the first inner pipe, and the first annular cavity is communicated with the second annular cavity;
a transmission pipeline comprising an input pipeline and an output pipeline, the input pipeline being in communication with the second inner pipe, the output pipeline being in communication with the outer pipe;
the speed reducing motor is used for driving the rotating shaft to rotate;
and the input pipeline and the output pipeline are connected with the heat exchange equipment.
Optionally, the outer side wall of the first inner pipe is connected with the inner side wall of the first groove through a first connecting column; the outer side wall of the second inner pipe is connected with the inner side wall of the outer pipe through a second connecting column, and the first connecting column and the second connecting column are both streamlined along the flowing direction of the cooling fluid.
Optionally, the outer side surface of the grinding wheel body is provided with a plurality of second grooves, the right ends of the second grooves extend to the right end of the grinding wheel body, the inner side wall of the outer tube is provided with a first annular groove, the left end face of the first annular groove extends to the left end face of the outer tube, and the inner side wall of the first annular groove is provided with a plurality of clamping keys corresponding to the second grooves.
Optionally, the outer periphery side of outer tube is equipped with the driven teeth of a cogwheel, gear motor includes driving motor and speed reducer, the speed reducer includes:
a drive gear meshed with the driven gear teeth;
and one end of the connecting shaft is connected with the driving gear, and the other end of the connecting shaft is connected with an output shaft of the driving motor.
Optionally, the speed reducer further comprises a casing, the rotating shaft penetrates from one side of the casing and penetrates out from the other side of the casing, a second annular groove and a third annular groove are formed in the outer side wall of the outer pipe, the second annular groove and the third annular groove are respectively formed in the penetrating position and the penetrating position of the rotating shaft, a first bearing is arranged in the second annular groove, and a second bearing is arranged in the third annular groove.
Optionally, the driving gear is disposed in the casing, the connecting shaft penetrates through the casing and is coaxially and fixedly connected with the driving gear, a fourth annular groove is disposed on the outer peripheral side of the connecting shaft, and a third bearing is disposed in the fourth annular groove.
Optionally, a first seal is arranged at one end of the input pipeline facing the second inner pipe; and a second seal is arranged at one end of the output pipeline, which faces the outer pipe.
Optionally, one end of the input pipeline, which faces the second inner pipe, is arranged in the output pipeline, and the other end of the input pipeline penetrates out of the side wall of the output pipeline.
Optionally, a contraction section is arranged at one end of the output pipeline, which is far away from the outer pipe, and the pipe diameter of one end of the contraction section, which is far away from the outer pipe, is equal to the pipe diameter of one end of the input pipeline, which is far away from the second inner pipe.
Optionally, the cooling fluid is carbon tetrachloride.
Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages:
the cooling fluid is input from the input pipeline in a liquid state, sequentially passes through the second inner pipe and the first inner pipe, enters the flowing gap, absorbs heat of the grinding wheel body in the flowing gap and the first annular cavity, is heated and vaporized, then takes away a large amount of heat of the end face and the side curved surface of the grinding wheel body by using latent heat of vaporization, sequentially passes through the second annular cavity and the output pipeline, enters the heat exchange equipment, and is condensed into a liquid state again. With this arrangement, the temperature of the grinding wheel body can be effectively reduced even when the grinding wheel body rotates at a high speed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a grinder based on gas phase change cooling according to an embodiment of the present disclosure;
fig. 2 is an exploded view of a grinder based on gas phase change cooling according to an embodiment of the present disclosure;
FIG. 3 is a schematic structural diagram of a grinding wheel body according to an embodiment of the present disclosure;
FIG. 4 is a schematic view of an internal structure of a grinding wheel body according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a rotating shaft according to an embodiment of the present disclosure;
fig. 6 is a schematic view of an internal structure of a rotating shaft according to an embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of a reduction motor according to an embodiment of the present application;
fig. 8 is a schematic structural diagram of a transmission pipeline according to an embodiment of the present application.
Reference numerals:
1-a grinding wheel body, 11-a first groove, 12-a first inner pipe, 13-a first connecting column, 14-a flow gap, 15-a first annular cavity and 16-a second groove;
2-a workbench;
3-shaft, 31-outer tube, 311-first annular groove, 312-snap key, 313-second annular groove, 3131-first bearing, 314-third annular groove, 3141-second bearing, 315-fifth annular groove, 316-driven gear teeth, 32-second inner tube, 321-sixth annular groove, 33-second connection column, 34-second annular cavity;
4-a speed reduction motor, 41-a driving motor, 42-a speed reducer, 421-a machine shell, 422-a driving gear, 423-a connecting shaft, 4231-a fourth annular groove and 4232-a third bearing;
5-transfer pipe, 51-input pipe, 511-seventh annular groove, 512-first seal, 513-first base, 52-output pipe, 521-eighth annular groove, 522-second seal, 523-second base, 524-shrink section, 53-thread;
6-heat exchange equipment.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all 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 application.
In one embodiment of the present application, as shown in fig. 1 and 2, a grinder based on gas phase change cooling includes a grinding wheel body 1, a rotating shaft 3, a reduction motor 4, a transmission pipeline 5, a worktable 2 and a heat exchange device 6. The gear motor 4 drives the rotating shaft 3 to rotate, one end of the rotating shaft 3 is connected with the grinding wheel body 1, the other end of the rotating shaft 3 is connected with one end of the transmission pipeline 5, and the other end of the transmission pipeline 5 is connected with the heat exchange equipment 6. The speed reducing motor 4 and the transmission pipeline 5 are both arranged on the top surface of the workbench 2.
As shown in fig. 3 and 4, the grinding wheel body 1 is cylindrical, a cylindrical first groove 11 is formed in the left end surface of the grinding wheel body, a first inner tube 12 is coaxially arranged in the first groove 11, the outer side wall of the first inner tube 12 is connected with the inner side wall of the first groove 11 through a first connecting column 13, a flow gap 14 is arranged between the left end surface of the first inner tube 12 and the bottom surface of the first groove 11, a first annular cavity 15 is arranged between the first inner tube 12 and the groove, and the cross sectional area of the first annular cavity 15 is 3/2 of the cross sectional area of the cavity of the first inner tube 12. A plurality of second grooves 16 are formed in the outer side surface of the grinding wheel body 1, the right end of each second groove 16 extends to the right end of the grinding wheel body 1, and the second grooves 16 are distributed in an annular array by taking the central axis of the grinding wheel body 1 as a rotation center. The grinding wheel body 1 is internally provided with a blocky iron core, and in the embodiment, the iron core is provided with a plurality of iron cores and arranged between every two second grooves 16.
When the temperature of the grinding wheel body 1 is below the boiling point of the cooling fluid, the cooling fluid flows in from the first inner pipe 12 in a liquid state, passes through the flow gap 14, absorbs heat generated by high-speed rotation of the grinding wheel body 1, gradually increases the temperature in the flow gap 14, and flows out in a gaseous state through the first annular cavity 15;
when the temperature of the grinding wheel body 1 is higher than the boiling point of the cooling fluid, the cooling fluid flows in from the first inner pipe 12 in a liquid state, and when the cooling fluid passes through the flow gap 14 and the first annular cavity 15, the heat generated by the end surface and the side curved surface when the grinding wheel body 1 rotates at a high speed is absorbed, the cooling fluid is vaporized in the flow gap 14 and the first annular cavity 15, and the latent heat of vaporization is utilized to take away a large amount of heat of the end surface and the side curved surface of the grinding wheel body 1, so that the grinding wheel body 1 can be effectively cooled.
Since the volume of carbon tetrachloride expands after vaporization, in order to maintain the pressure in the flow gap 14 and the first annular cavity 15 stable, the cross-sectional area of the first annular cavity 15 is set to be 1.5 times of the cross-sectional area of the cavity of the first inner tube 12, so that the carbon tetrachloride airflow has enough space to expand, thereby maintaining the boiling point and the latent heat of vaporization of the carbon tetrachloride stable.
In this embodiment, carbon tetrachloride is used as the cooling fluid, which is chemically stable and non-flammable, and has a boiling point of 76.8 ℃ higher than the room temperature of the grinding chamber, and typically, the average temperature increase thetaw of the workpiece is about several tens of degrees celsius, and the contact surface temperature thetam is about several hundreds of degrees celsius. The boiling point of the carbon tetrachloride is closer to the average temperature rise thetaw of the workpiece and is far lower than the temperature thetam of the contact surface. The latent heat of vaporization of carbon tetrachloride is 190.3803kJ/kg at 80 ℃ and 0.1119MPa, and the heat of the grinding wheel body 1 can be rapidly taken away from the inside of the grinding wheel body 1, so that the temperature thetam of the contact surface of the grinding wheel body 1 is maintained below 100 ℃. Compare in the heat transfer mode of traditional spraying grinding fluid formula, the emery wheel body 1 that this embodiment provided can take away more geothermal energy down through low boiling point fluid vaporization heat absorption, unit flow.
In this embodiment, the first connecting column 13 is arranged in a streamline shape along the axial direction of the grinding wheel body 1, the round angle is rounded at the boundary between the bottom surface of the first groove 11 and the inner side wall, and the round angle is rounded at the boundary between the left end surface of the first inner tube 12 and the outer side wall. The first connecting column 13 is used to connect the outer side wall of the first inner pipe 12 with the inner side wall of the first groove 11, and the flow speed of the vaporized cooling fluid is faster because the first connecting column 13 is located in the first annular cavity 15. The streamlined first connecting column 13 and the plurality of fillets can reduce turbulence in the flowing process, eliminate a vacuum zone formed by the cooling fluid at the tail end of the first connecting column 13, and maintain the cooling fluid in a laminar state, thereby maintaining the flow velocity of the cooling fluid to be stable.
As shown in fig. 5 and 6, the rotating shaft 3 includes an outer tube 31 and a second inner tube 32, an inner sidewall of the outer tube 31 and an outer sidewall of the second inner tube 32 are connected by a second connecting column 33, and a second annular cavity 34 is formed between the inner sidewall of the outer tube 31 and the outer sidewall of the second inner tube 32. Similarly to the first connecting column 13, the second connecting column 33 is also streamlined along the axial direction of the second inner tube 32 for maintaining the flow velocity of the cooling fluid constant.
The outer diameter of the outer pipe 31 is larger than that of the grinding wheel body 1, and the inner diameter of the outer pipe is equal to that of the first groove 11. First annular groove 311 has been seted up to the inside wall of outer tube 31, the left end face of first annular groove 311 extends to the left end face of outer tube 31, the internal diameter of first annular groove 311 with the external diameter of emery wheel body 1 equals, the inside wall of first annular groove 311 be equipped with a plurality of with the joint key 312 that second recess 16 corresponds. A second annular groove 313, a third annular groove 314 and a fifth annular groove 315 are formed in the outer side wall of the outer tube 31 from left to right once, a first bearing 3131 and a second bearing 3141 are respectively arranged in the second annular groove 313 and the third annular groove 314, a driven gear 316 is further arranged between the first annular groove 311 and the second annular groove 313, and the right end face of the fifth annular groove 315 extends to the right end face of the outer tube 31.
The outer side wall of the second inner tube 32 is provided with a sixth annular groove 321, and the right end surface of the sixth annular groove 321 extends to the right end surface of the second inner tube 32.
Put into first annular groove 311 with emery wheel body 1 in, the bottom surface butt of the right-hand member face of emery wheel body 1 and first recess 11, the left end face butt of first inner tube 12 right-hand member face and second inner tube 32, second recess 16 and joint key 312 cooperation for emery wheel body 1 can follow the coaxial rotation of pivot 3. The cooling fluid enters from the inner cavity of the second inner tube 32 and passes through the inner cavity of the first inner tube 12, the flow gap 14, the first annular cavity 15 and the second annular cavity 34 in that order. In the present embodiment, the rotating shaft 3 is used for transmission, driven by the speed reduction motor 4, and the driven gear teeth 316 of the rotating shaft 3 drive the rotating shaft 3 to rotate, and is used for transmitting fluid, the inner cavity of the second inner pipe 32 is used for introducing liquid cooling fluid into the grinding wheel body 1, and the second annular cavity 34 is used for passing gaseous cooling fluid flowing out of the grinding wheel body 1.
According to the one side of this embodiment, be equipped with a plurality of massive iron cores in emery wheel body 1 between per two second recesses 16, be equipped with magnet in the joint portion, emery wheel body 1 with pivot 3 passes through magnet and connects, so sets up, makes things convenient for dismouting or changes emery wheel body 1.
According to another aspect of the present embodiment, the grinding wheel body 1 is connected to the outer tube 31 by bolts, and the grinding wheel body 1 and the rotating shaft 3 are fixedly connected in the axial direction, when the pressure of the cooling fluid is too high, the magnetic force provided by the magnet cannot attract the grinding wheel body 1 to the rotating shaft 3, and the grinding wheel body is easily flushed out by the cooling fluid. By adding bolts or only adopting bolts, the grinding wheel body 1 and the outer pipe 31 can be locked, and the grinding wheel body 1 is prevented from being flushed out by high-pressure cooling fluid.
As shown in fig. 7, the reduction motor 4 includes a driving motor 41 and a reduction gear 42, the reduction gear 42 includes a casing 421, a driving gear 422 and a connecting shaft 423, the driving gear 422 is disposed in the casing 421, one end of the connecting shaft 423 is coaxially and fixedly connected with an output shaft of the driving motor 41, the other end of the connecting shaft 423 penetrates through the casing 421 and is coaxially and fixedly connected with the driving gear 422, a fourth annular groove 4231 is disposed on an outer peripheral side of the connecting shaft 423, and a third bearing 4232 is disposed in the fourth annular groove 4231 and used for supporting a position where the connecting shaft 423 contacts with the casing 421 to reduce a friction force generated by the connecting shaft 423 and the casing 421 when the connecting shaft 423 rotates. The driving gear 422 is engaged with the driven gear teeth 316. The rotating shaft 3 penetrates through the right side of the machine shell 421 and penetrates out of the left side of the machine shell 421, and the first bearing 3131 and the second bearing 3141 are both used for supporting the position where the outer pipe 31 of the rotating shaft 3 is in contact with the machine shell 421, so that the friction force between the outer pipe 31 and the machine shell 421 is reduced. The speed reducer 42 and the driving motor 41 are both fixed on the top surface of the workbench 2.
In this embodiment, the driving motor 41 drives the driving gear 422 to connect through the connecting shaft 423, and the driving gear 422 drives the rotating shaft 3 to rotate through the driven gear 316 disposed on the outer periphery of the outer tube 31, and further drives the grinding wheel body 1 to rotate. The driven gear teeth 316 are arranged on the outer periphery of the outer pipe 31 for transmission, so that the rotating shaft 3 is driven to rotate from the outside, and the inside of the rotating shaft passes through fluid, namely the states of 'external transmission and internal mass transfer', and the dynamic and the mass are separated and do not influence each other.
As shown in fig. 8, the transmission pipeline 5 includes an input pipeline 51 and an output pipeline 52, the outer diameter of the input pipeline 51 is smaller than the inner diameter of the output pipeline 52, the left end of the input pipeline 51 is arranged in the output pipeline 52, and the right end of the input pipeline 51 penetrates out of the side wall of the output pipeline 52.
A seventh annular groove 511 is formed in the outer peripheral side of the input pipe 51, and a left end surface of the seventh annular groove 511 extends to a left end surface of the input pipe 51. The left end of the input pipeline 51 is abutted with the right end of the second inner pipe 32, the inner diameters of the sixth annular groove 321 and the seventh annular groove 511 are the same, and a first seal 512 is arranged in the sixth annular groove 321 and the seventh annular groove 511. The input duct 51 is installed on the top surface of the table 2 through a first base 513.
An eighth annular groove 521 is formed in the outer peripheral side of the output pipe 52, and a left end surface of the eighth annular groove 521 extends to a left end surface of the output pipe 52. The left end of the output pipe 52 is abutted with the right end of the outer pipe 31, the inner diameters of the fifth annular groove 315 and the eighth annular groove 521 are the same, and a second seal 522 is arranged in the fifth annular groove 315 and the eighth annular groove 521. The output duct 52 is installed on the top surface of the table 2 through the second base 523.
The first seal 512 is arranged at the joint of the input pipeline 51 and the second inner pipe 32, and separates the liquid cooling fluid inside the first seal 512 and the second inner pipe 32 from the gaseous cooling fluid outside the first seal 512, so as to prevent gas or liquid from leaking; a second seal 522 is provided at the junction of the output duct 52 and the outer tube 31, which separates the gaseous cooling fluid inside the output duct 52 and the outer tube 31 from the outside. On the one hand, because carbon tetrachloride steam has low toxicity, long-term contact can make human liver be affected, simultaneously because carbon tetrachloride can react with water under high temperature and generate virulent phosgene, consequently in order to prevent carbon tetrachloride from revealing harm human body, set up the second and seal 522 and seal carbon tetrachloride in output pipeline 52, set up whole sealed carbon tetrachloride circulation flow channel simultaneously, make carbon tetrachloride's flow, the phase transition process is whole to be gone on under sealed condition, ensured personnel's safety effectively.
In this embodiment, the right end of the input pipeline 51 and the right end of the output pipeline 52 are connected with the output interface and the input interface of the heat exchange device 6, and the heat exchange device 6 may be one or more of a tube type heat exchange device, a jacketed type heat exchange device, an immersed coil type heat exchange device and a plate type heat exchange device, and is used for condensing hot gaseous cooling fluid into liquid, and pumping the liquid cooling fluid into the input pipeline 51, because of the prior art, the details are not repeated here.
The right end of the output pipeline 52 is provided with a contraction section 524, and the pipe diameter of the right end of the contraction section 524 is equal to that of the right end of the input pipeline 51. The right-hand orifice of the constriction 524 and the right-hand orifice of the inlet duct 51 are provided with a thread 53. The pipe orifices with the same diameter, the arranged screw thread 53 and the input pipe 51 which penetrates out from the side surface of the output pipe 52 can be conveniently connected with the heat exchange equipment 6 or the connecting pipe. When the grinding wheel body 1 needs to be detached or replaced, in order to prevent a large amount of carbon tetrachloride from leaking, the pipe orifice of the thread 53 of the input pipeline 51 can be connected with a nitrogen input device, the pipe orifice of the thread 53 of the output pipeline 52 is connected with an exhaust gas collecting device, and most of the carbon tetrachloride in the carbon tetrachloride can be discharged by pumping nitrogen gas at 90 ℃ into the grinding wheel machine, so that the grinding wheel body 1 can be replaced.
The cooling fluid is input in a liquid state from the input pipeline 51, sequentially passes through the second inner pipe 32 and the first inner pipe 12, enters the flow gap 14, absorbs the heat of the grinding wheel body 1 in the flow gap 14 and the first annular cavity 15, is heated and vaporized, then sequentially passes through the second annular cavity 34 and the output pipeline 52, enters the heat exchange device 6, is condensed into the liquid state again, and is pumped into the input pipeline 51 again by a pump in the heat exchange device 6 to enter the next circulation.
Carbon tetrachloride with low boiling point and stable property is taken as a cooling medium, the heat of the grinding wheel body 1 is taken away by utilizing the latent heat of vaporization, and the grinding wheel body 1 can be effectively cooled under the condition of ensuring the safety of personnel. Simultaneously, the setting is driven from the outside and is rotatory, and fluidic pivot 3 is passed through to inside for carbon tetrachloride's phase transition and flow process all are in sealed circulation space, prevent that carbon tetrachloride from revealing, further ensure personnel's safety.
It is noted that, in this document, 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. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice 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 (10)
1. A grinder based on gas phase change cooling is characterized by comprising:
the grinding wheel comprises a grinding wheel body, wherein a first groove is formed in one side of the grinding wheel body, a first inner pipe is arranged in the first groove, a flowing gap is formed between the end face, facing the first groove, of the first inner pipe and the bottom face of the first groove, a first annular cavity is formed between the first inner pipe and the groove, and the flowing gap and the first annular cavity are used for containing cooling fluid;
the rotating shaft comprises an outer pipe and a second inner pipe arranged in the outer pipe, a second annular cavity is arranged between the outer pipe and the second inner pipe, the outer pipe is coaxially connected with the grinding wheel body, the second inner pipe is communicated with the first inner pipe, and the first annular cavity is communicated with the second annular cavity;
a transmission pipeline comprising an input pipeline and an output pipeline, the input pipeline being in communication with the second inner pipe, the output pipeline being in communication with the outer pipe;
the speed reducing motor is used for driving the rotating shaft to rotate;
and the input pipeline and the output pipeline are connected with the heat exchange equipment.
2. The vapor change cooling-based grinder of claim 1, wherein the outer sidewall of the first inner tube and the inner sidewall of the first groove are connected by a first connecting post; the outer side wall of the second inner pipe is connected with the inner side wall of the outer pipe through a second connecting column, and the first connecting column and the second connecting column are both streamlined along the flowing direction of the cooling fluid.
3. The grinder based on vapor phase change cooling of claim 1, wherein the outer side surface of the grinding wheel body is provided with a plurality of second grooves, the right ends of the second grooves extend to the right end of the grinding wheel body, the inner side wall of the outer tube is provided with a first annular groove, the left end surface of the first annular groove extends to the left end surface of the outer tube, and the inner side wall of the first annular groove is provided with a plurality of clamping keys corresponding to the second grooves.
4. The gas phase change cooling based grinder of claim 1, wherein the outer tube is provided with driven gear teeth on an outer peripheral side thereof, the reduction motor includes a driving motor and a speed reducer, and the speed reducer includes:
a drive gear meshed with the driven gear teeth;
and one end of the connecting shaft is connected with the driving gear, and the other end of the connecting shaft is connected with an output shaft of the driving motor.
5. The grinder based on gas phase change cooling as claimed in claim 1, wherein the speed reducer further comprises a casing, the rotating shaft penetrates in from one side of the casing and penetrates out from the other side of the casing, a second annular groove and a third annular groove are formed in the outer side wall of the outer tube, the second annular groove and the third annular groove are respectively arranged at the penetrating position and the penetrating position of the rotating shaft, a first bearing is arranged in the second annular groove, and a second bearing is arranged in the third annular groove.
6. The grinding machine based on gas phase change cooling of claim 5, wherein the driving gear is arranged in the casing, the connecting shaft penetrates through the casing and is coaxially and fixedly connected with the driving gear, a fourth annular groove is formed in the outer peripheral side of the connecting shaft, and a third bearing is arranged in the fourth annular groove.
7. The vapor change cooling-based grinder of claim 1, wherein an end of the input tube facing the second inner tube is provided with a first seal; and a second seal is arranged at one end of the output pipeline, which faces the outer pipe.
8. The vapor change cooling-based grinder of claim 1, wherein one end of the input tube facing the second inner tube is disposed in the output tube, and the other end of the input tube protrudes out of a side wall of the output tube.
9. The vapor phase change cooling-based grinder according to claim 8, wherein the end of the output pipeline far away from the outer pipe is provided with a contraction section, and the pipe diameter of the end of the contraction section far away from the outer pipe is equal to that of the end of the input pipeline far away from the second inner pipe.
10. The vapor change cooling-based grinder of any of claims 1-9, wherein the cooling fluid is carbon tetrachloride.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110875050.4A CN113370081B (en) | 2021-07-30 | 2021-07-30 | Grinding machine based on gas phase change cooling |
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| CN202110875050.4A CN113370081B (en) | 2021-07-30 | 2021-07-30 | Grinding machine based on gas phase change cooling |
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| CN113370081B CN113370081B (en) | 2021-12-17 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63251147A (en) * | 1987-04-07 | 1988-10-18 | Seibu Electric & Mach Co Ltd | Spindle construction of machine tool head stock |
| JP2001105145A (en) * | 1999-09-30 | 2001-04-17 | Nisshin Steel Co Ltd | Method and mechanism for cooling of smoothing tool for bead inside welded pipe |
| CN201257613Y (en) * | 2008-09-05 | 2009-06-17 | 申科滑动轴承股份有限公司 | Ipsilateral water in/out cooling device |
| CN101870088A (en) * | 2010-06-13 | 2010-10-27 | 北京航空航天大学 | Closed feed liquid self-sucking type inner cooling grinding wheel device for face grinding |
| CN203542224U (en) * | 2013-09-29 | 2014-04-16 | 东莞市安默琳节能环保技术有限公司 | Outer cooling-to-inner cooling cutter handle device and cutting device |
| CN109648372A (en) * | 2019-01-29 | 2019-04-19 | 大连理工大学 | A kind of knife handle suitable for ultralow temperature medium cooling and lubricating |
| CN110695862A (en) * | 2019-10-14 | 2020-01-17 | 河南科技大学 | Novel low temperature nitrogen gas pipeline emery wheel |
-
2021
- 2021-07-30 CN CN202110875050.4A patent/CN113370081B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63251147A (en) * | 1987-04-07 | 1988-10-18 | Seibu Electric & Mach Co Ltd | Spindle construction of machine tool head stock |
| JP2001105145A (en) * | 1999-09-30 | 2001-04-17 | Nisshin Steel Co Ltd | Method and mechanism for cooling of smoothing tool for bead inside welded pipe |
| CN201257613Y (en) * | 2008-09-05 | 2009-06-17 | 申科滑动轴承股份有限公司 | Ipsilateral water in/out cooling device |
| CN101870088A (en) * | 2010-06-13 | 2010-10-27 | 北京航空航天大学 | Closed feed liquid self-sucking type inner cooling grinding wheel device for face grinding |
| CN203542224U (en) * | 2013-09-29 | 2014-04-16 | 东莞市安默琳节能环保技术有限公司 | Outer cooling-to-inner cooling cutter handle device and cutting device |
| CN109648372A (en) * | 2019-01-29 | 2019-04-19 | 大连理工大学 | A kind of knife handle suitable for ultralow temperature medium cooling and lubricating |
| CN110695862A (en) * | 2019-10-14 | 2020-01-17 | 河南科技大学 | Novel low temperature nitrogen gas pipeline emery wheel |
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| CN113370081B (en) | 2021-12-17 |
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