CN214109778U - Novel grease lubrication main shaft for multi-wire cutting machine - Google Patents

Novel grease lubrication main shaft for multi-wire cutting machine Download PDF

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Publication number
CN214109778U
CN214109778U CN202023141182.4U CN202023141182U CN214109778U CN 214109778 U CN214109778 U CN 214109778U CN 202023141182 U CN202023141182 U CN 202023141182U CN 214109778 U CN214109778 U CN 214109778U
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main shaft
bearing
rear end
center pin
grease
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CN202023141182.4U
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Chinese (zh)
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仇健
王海超
鹿慧丰
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Qingdao Gaoce Technology Co Ltd
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Qingdao Gaoce Technology Co Ltd
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Abstract

The utility model discloses a novel lubricated main shaft of multi-wire saw grease, it includes the center pin and sets up the main shaft cover outside the center pin, the center pin is the constant diameter axle, be provided with the bearing between center pin and the main shaft cover, the bearing is including setting up in the front end bearing of center pin front end and setting up in the rear end bearing of center pin rear end, the external diameter of front end bearing is greater than the external diameter of rear end bearing, be provided with the main shaft inner chamber between front end bearing and the rear end bearing, form the interior pressure that can avoid the foreign matter to get into in the main shaft inner chamber, when this main shaft can satisfy higher rotational speed requirement, increased low-heating, high heat dissipation, sealed and blowdown ability, make the main shaft can guarantee its can be stable work under high rotational speed.

Description

Novel grease lubrication main shaft for multi-wire cutting machine
Technical Field
The utility model belongs to multi-wire saw equipment field, specifically speaking relate to a novel lubricated main shaft of multi-wire saw machine fat.
Background
Along with the increase of slicing technology, the requirement on the linear speed of a main shaft of a slicing machine is continuously increased, the original slicing main shaft is difficult to realize higher rotating speed due to insufficient heating and cooling and the problem of sealing effect, and the requirement on a high-rotating-speed slicing machine in the fine cutting process cannot be met.
Accordingly, further developments and improvements are still needed in the art.
SUMMERY OF THE UTILITY MODEL
Aiming at various defects in the prior art, in order to solve the problems, a novel grease lubrication main shaft for a multi-wire cutting machine is provided, and the main shaft is high in rotating speed and good in cooling and pollution discharge effects.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a novel lubricated main shaft of multi-wire saw grease, its includes the center pin and sets up the main shaft cover outside the center pin, the center pin is the constant diameter axle, be provided with the bearing between center pin and the main shaft cover, the bearing is including setting up in the front end bearing of center pin front end and setting up in the rear end bearing of center pin rear end, the external diameter of front end bearing is greater than the external diameter of rear end bearing, be provided with the main shaft inner chamber between front end bearing and the rear end bearing, form the interior pressure that can avoid the foreign matter to get into in the main shaft inner chamber.
Preferably, the main shaft sleeve comprises a main shaft inner sleeve and a main shaft outer sleeve, and a spiral cooling water tank is arranged between the main shaft inner sleeve and the main shaft outer sleeve.
Preferably, the number of the front end bearings is 4, and the inner diameter of each front end bearing is smaller than 100 mm.
Preferably, the front end bearing further comprises a first spacer ring and a first oil slinger for storing lubricating grease in the front end bearing, the first spacer ring and the first oil slinger are respectively arranged in a plurality of numbers, and each front end bearing is arranged at an interval through the first spacer ring and the first oil slinger.
Preferably, the number of the rear end bearings is 2, and the inner diameter of the rear end bearing is less than 100 mm.
Preferably, the rear end bearing further comprises a spacer bush and a second spacer ring for storing lubricating grease in the front end bearing, and the rear end bearing and the front end bearing are arranged at intervals through the spacer bush.
Preferably, it is sealed with the rear end including the front end that corresponds main shaft cover front end and rear end respectively and set up, the front end is sealed including awl end flange, quiet sealing ring and move the sealing ring, quiet sealing ring sets up on awl end flange, it sets up on the center pin to move the sealing ring, the rear end is sealed including the rear end flange and is used for placing the end cover that the foreign matter got into the center pin, the end cover encircles the center pin and sets up on the rear end flange.
Preferably, be provided with in the main shaft overcoat and let out dirty passageway, be provided with between static sealing ring and the dynamic seal ring and let out dirty chamber, main shaft overcoat rear end is provided with lets out dirty mouthful, let out dirty passageway one end with let out dirty chamber and be connected, the other end with let out dirty mouthful and be connected.
Preferably, an air supply channel is further arranged in the spindle outer sleeve and connected with the sewage draining cavity.
Preferably, the air supply channel is connected with the front end in a sealing manner, and the air is continuously blown to the front end in a sealing manner to form a back blowing air curtain.
Has the advantages that:
1. the front end bearing and the rear end bearing adopt small pitch circle diameter bearings, a higher Dmn value is provided under the condition of meeting the rigidity requirement of the main shaft, and the main shaft can be ensured to adapt to the higher rotating speed requirement;
2. the bearing span between the front end bearing and the rear end bearing can be increased by using the small pitch circle diameter bearing, so that the acting force acting on the bearing is reduced, the deflection and the corner of the mandrel deflection line under the action of load are reduced, and the reliability of stress bearing is increased;
3. the cooling capacity of the main shaft is optimized, the small pitch circle diameter bearing has small specification and less heat productivity, and the distance between the front end bearing and the rear end bearing is increased, so that the inner cavity of the main shaft between the front bearing and the rear bearing is enlarged, the heat dissipation space is increased, the heat flow is more uniform, the cooling water tank is optimized, the path of the cooling water tank on the main shaft is increased, and the cooling effect is further improved;
4. the dirt discharge capacity of the main shaft is optimized, the difficulty of foreign matters entering the main shaft is increased by utilizing the centrifugal force of the main shaft, compressed air is pressed into the sealing structure and the inner cavity of the main shaft through the air supply channel, so that pressure difference is formed between the inside and the outside of the main shaft, the foreign matters are prevented from entering, meanwhile, the dirt discharge port is prolonged to the rear end of the main shaft, and the discharged foreign matters are prevented from entering the main shaft again.
Drawings
FIG. 1 is a schematic cross-sectional view of a grease lubricated spindle for a multi-wire saw according to an embodiment of the present invention;
fig. 2 is a right side view of a grease lubricated spindle of a multi-wire saw according to an embodiment of the present invention.
In the drawings: 100 central shaft, 210 main shaft inner sleeve, 220 main shaft outer sleeve, 230 cooling water tank, 241 conical end flange, 242 static sealing ring, 243 dynamic sealing ring, 251 rear end flange, 252 end cover, 260 dirt discharge channel, 280 dirt discharge port, 290 air supply channel, 310 front end bearing, 313 first spacer ring, 314 first oil retainer ring, 320 rear end bearing, 321 spacer, 322 second spacer ring and 410 main shaft inner cavity.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following description, together with the drawings of the present invention, clearly and completely describes the technical solution of the present invention, and based on the embodiments in the present application, other similar embodiments obtained by those skilled in the art without creative efforts shall all belong to the protection scope of the present application. In addition, directional terms such as "upper", "lower", "left", "right", etc. in the following embodiments are directions with reference to the drawings only, and thus, the directional terms are used for illustration and not for limitation of the present invention.
As shown in fig. 1 and 2, the utility model provides a novel lubricated main shaft of multi-wire saw grease, it includes center pin 100 and sets up the spindle cover outside center pin 100, center pin 100 is the constant diameter axle, be provided with the bearing between center pin 100 and the spindle cover, the bearing is including setting up in the front end bearing 310 of center pin 100 front end and setting up in the rear end bearing 320 of center pin 100 rear end, the external diameter of front end bearing 310 is greater than the external diameter of rear end bearing 320, be provided with main shaft inner chamber 410 between front end bearing 310 and the rear end bearing 320, form the interior pressure that can avoid the foreign matter to get into in the main shaft inner chamber 410.
Specifically, the main shaft sleeve comprises a main shaft inner sleeve 210 and a main shaft outer sleeve 220, a spiral cooling water tank 230 is arranged between the main shaft inner sleeve 210 and the main shaft outer sleeve 220, the total length of the water tank is increased by the spiral cooling water tank 230, the total cooling time is prolonged, the cooling effect is ensured, and the water inlet channel and the water outlet channel adopt a right-angle design, so that the processing and the assembly are facilitated.
Specifically, the number of the front end bearings 310 is 4, and the inner diameter of the front end bearing 310 is less than 100 mm.
Specifically, the front end bearing 310 further includes a first spacer 313 and a first oil slinger 314 for storing grease in the front end bearing 310, the first spacer 313 and the first oil slinger 314 are respectively provided in plurality, each front end bearing 310 is arranged at an interval with the first oil slinger 314 through the first spacer 313, the first spacer 313 and the first oil slinger 314 are arranged between each front end bearing 310, so that the grease in each front end bearing 310 can be ensured to lubricate the bearing all the time, the spacer can also prevent foreign matters from entering the front end bearing 310 to contaminate the grease, which causes the failure of the main shaft seal, and reduce the number of times and time of maintenance for shutdown, and the front end bearing 310 is further provided with a lock nut for locking the main shaft inner sleeve 210 and each first spacer 313, thereby ensuring the sealing performance of the main shaft.
Specifically, the number of the rear end bearings 320 is 2, the inner diameter of the rear end bearing 320 is smaller than 100mm, and the front end bearing 310 and the rear end bearing 320 both adopt small-diameter bearings to provide a better Dmn value, so that the main shaft can meet the requirement of higher rotating speed; meanwhile, the bearing span between the small-diameter bearings is larger, the larger bearing span can reduce the acting force acting on the bearings, reduce the deflection and the corner of the mandrel deflection line under the action of load, and increase the stress bearing of the rotating shaft; the distance between the front end bearing 310 and the rear end bearing 320 is enlarged, so that heat flow is facilitated, the heat flow between the front end bearing 310 and the rear end bearing 320 is more uniform, and heat dissipation failure caused by local excessive heat is reduced.
Specifically, the rear end bearing 320 further includes a spacer 321 and a second spacer 322 for storing grease in the front end bearing 310, and the rear end bearing 320 and the front end bearing 310 are arranged at an interval through the spacer 321.
In a preferred embodiment, the spacer 321 is disposed between the front fourth row of bearings and the rear first row of bearings, and the spacer 321 spaces the inner sleeve 210 of the spindle, the front end bearing 310 and the rear end bearing 320, and a cavity is formed between the spaces, which is the inner cavity 410 of the spindle.
In a preferred embodiment, the front end bearing 310 and the rear end bearing 320 can be optimally selected according to the load and rigidity requirements of the main shaft, so as to ensure that the selected front end bearing 310 and the selected rear end bearing 320 are optimally configured to meet the requirements of the main shaft, meanwhile, 4 front end bearings 310 can be matched with different bearing types according to the requirements, and 2 rear end bearings 320 can be matched with different bearing types according to the requirements.
Specifically, it is sealed with the rear end including the front end that corresponds spindle sleeve front end and rear end respectively and sets up, the front end is sealed including awl end flange 241, static sealing ring 242 and move the sealing ring 243, static sealing ring 242 sets up on awl end flange 241, it sets up on center pin 100 to move sealing ring 243, the rear end is sealed including rear end flange 251 and the end cover 252 that is used for placing the foreign matter and gets into center pin 100, end cover 252 encircles center pin 100 and sets up on rear end flange 251.
In a preferred embodiment, move and still be provided with the foreign matter that is used for holding the dirt chamber of letting out and prevents that the foreign matter from getting into between sealing ring 243 and the static sealing ring 242 and end the groove, set up in the air vent on the static sealing ring 242, it passes through air vent and air feed groove intercommunication to let out the dirt chamber, it ends the groove intercommunication with the foreign matter to let out the dirt chamber, the foreign matter ends the groove and communicates with the air curtain air flue, and compressed gas loops through the air feed groove, lets out the dirt chamber, and the groove is ended to the foreign matter and the air curtain air flue forms the blowback air curtain, it is provided with the recess in the dirt chamber to let out the dirt chamber, and the foreign matter that rushes back the air curtain and get into the main shaft can be held back to the foreign matter that the foreign matter of holding back through centrifugal action gets rid of the recess in the dirt chamber.
Specifically, cone end flange 241 bottom is provided with the trapway that is arranged in discharging the dirt chamber foreign matter, discharges to be provided with the blowhole between dirt chamber and the trapway, the object containing chamber passes through the blowhole intercommunication with the trapway, and the entering lets in the dirt chamber recess foreign matter pass through the blowhole and discharges to the trapway, prevents to let out in the dirt chamber foreign matter too much cause through letting out the space in dirt chamber get into the main shaft.
In the preferred embodiment, the cone end flange 241 is provided with a water baffle corresponding to the sewage channel, the water baffle is arranged outside the cone end flange 241, the water baffle can be detachably arranged, foreign matters on the water baffle can be cleaned through detaching the water baffle, and the sewage channel can be inspected and cleaned after detaching the water baffle, so that the sewage channel is prevented from being blocked by the foreign matters, and the sewage effect of the whole sewage channel is improved.
In the preferred embodiment, it sets up to a plurality ofly to let out dirty chamber, and every leaks dirty chamber and corresponds and be provided with a blowoff hole, and the blowdown passageway is provided with the aperture through every blowoff hole and every respectively and leaks dirty chamber intercommunication between a plurality of dirty chambeies of letting out, and a plurality of dirty chambeies of letting out multiplicable quantity that holds the foreign matter, and can increase the foreign matter and get into the inside degree of difficulty of main shaft through letting out dirty chamber.
In a preferred embodiment, a first labyrinth seal for preventing foreign matters from entering the main shaft is arranged between the dynamic sealing ring 243 and the conical end flange 241.
In a preferred embodiment, a second labyrinth for preventing foreign matters from entering the front end bearing 310 is provided between the first cage 313 and the first slinger 314.
Specifically, be provided with in the main shaft overcoat 220 and let out dirty passageway 260, be provided with between static sealing ring 242 and the dynamic sealing ring 243 and let out dirty chamber, main shaft overcoat 220 rear end is provided with and lets out dirty mouth 280, let out dirty passageway 260 one end with let out dirty chamber and be connected, the other end with let out dirty mouthful 280 and be connected.
Specifically, an air supply channel 290 is further disposed in the spindle housing 220, and the air supply channel 290 is connected with the dirt discharge chamber.
Specifically, the air supply channel 290 is hermetically connected to the front end, and the air is continuously blown to the front end to form a blowback air curtain.
When the main shaft runs at a high speed, the main shaft is subjected to a large radial force and a large axial force, the front end bearings 310 of different types are arranged and are respectively used for bearing the radial force and the axial force applied to the main shaft, the phenomenon that the work of the main shaft is influenced due to the overlarge radial force or axial force is avoided, the integral rigidity of the main shaft is improved, the service life of the main shaft is prolonged, meanwhile, the first oil retainer 314 arranged between the bearings avoids the loss of lubricating grease, the arranged first spacer 313 can prevent foreign matters from entering the main shaft to cause the failure of the lubricating grease of the front end bearings 310, the first spacer 313 and the first oil retainer 314 arranged between each front end bearing 310 can also ensure that after a certain front end bearing 310 fails, other front end bearings 310 can still work correspondingly, the failure of one front end bearing 310 is avoided, the whole main shaft is directly in an integral failure state, and after the failure of one front end bearing 310 occurs, the spindle is slowly stopped, unnecessary loss is reduced, meanwhile, the air supply channel 290 is separated from the dirt discharge port 280, the air supply channel 290 is arranged at the front end of the spindle, the dirt discharge port 280 is arranged at the rear end of the spindle through the extended dirt discharge channel 260, foreign matters discharged from the dirt discharge port 280 are prevented from entering the interior of the spindle again due to low pressure and the like, a spindle cavity 410 arranged in the spindle can receive the compressed and blown air from the internal pressure blowback air inlet, so that a high-pressure environment exists in the spindle cavity 410, a pressure difference is formed between the high-pressure environment and the outside, the phenomenon that a low-pressure area is formed after the spindle cavity 410 is cooled again due to heating expansion and foreign matters are sucked is prevented, meanwhile, the spiral cooling water tank 230 can improve the circulating fluidity of cooling liquid, the cooling effect is further improved, besides the phenomenon that the spindle cavity 410 forms the low-pressure area is prevented, the clearance reduction caused by a large amount of heating expansion of the front end bearing 310 and the rear end bearing 320 can be effectively prevented, so that the bearing is locked and the main shaft is stopped.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the invention, i.e. the present invention is intended to cover all equivalent variations and modifications within the scope of the present invention.

Claims (10)

1. The utility model provides a novel lubricated main shaft of multi-wire saw grease, its characterized in that, include the center pin and set up the main shaft cover outside the center pin, the center pin is the constant diameter axle, be provided with the bearing between center pin and the main shaft cover, the bearing is including setting up in the front end bearing of center pin front end and setting up in the rear end bearing of center pin rear end, the external diameter of front end bearing is greater than the external diameter of rear end bearing, be provided with the main shaft inner chamber between front end bearing and the rear end bearing, it can avoid the interior pressure that the foreign matter got into to be convenient for heat transfer and heat dissipation to form in the main shaft inner chamber.
2. The grease-lubricated main shaft for the novel multi-wire cutting machine as claimed in claim 1, wherein the main shaft sleeve comprises a main shaft inner sleeve and a main shaft outer sleeve, and a spiral cooling water tank is arranged between the main shaft inner sleeve and the main shaft outer sleeve.
3. The grease lubricated spindle for a multi-wire saw as claimed in claim 1, wherein the number of the front end bearings is 4, and the inner diameter of the front end bearing is less than 100 mm.
4. The grease-lubricated main shaft for the multi-wire cutting machine according to claim 3, wherein the front bearing further comprises a first spacer ring and a first oil slinger for storing grease in the front bearing, and a spacer sleeve, the first spacer ring and the first oil slinger are respectively arranged in a plurality, and each front bearing is arranged at an interval with the first oil slinger through the first spacer ring.
5. The grease lubricated main shaft for the multi-wire cutting machine as claimed in claim 1, wherein the number of the rear end bearings is 2, and the inner diameter of the rear end bearings is less than 100 mm.
6. The grease lubricated main shaft for the multi-wire cutting machine according to claim 5, wherein the rear bearing further comprises a spacer bush and a second spacer ring for storing grease in the front bearing, and the rear bearing is arranged at an interval with the front bearing through the spacer bush.
7. The grease lubricated main shaft for the multi-wire cutting machine according to claim 2, further comprising a front end seal and a rear end seal respectively corresponding to the front end and the rear end of the main shaft sleeve, wherein the front end seal comprises a cone end flange, a static sealing ring and a dynamic sealing ring, the static sealing ring is arranged on the cone end flange, the dynamic sealing ring is arranged on the central shaft, the rear end seal comprises a rear end flange and an end cover for placing foreign matters into the central shaft, and the end cover is arranged on the rear end flange around the central shaft.
8. The grease lubricated main shaft for the multi-wire cutting machine as claimed in claim 7, wherein the main shaft housing is provided with a dirt discharge passage, a dirt discharge cavity is arranged between the static sealing ring and the dynamic sealing ring, the rear end of the main shaft housing is provided with a dirt discharge port, one end of the dirt discharge passage is connected with the dirt discharge cavity, and the other end of the dirt discharge passage is connected with the dirt discharge port.
9. The grease lubricated main shaft for the multi-wire cutting machine as claimed in claim 8, wherein an air supply channel is further arranged in the main shaft jacket, and the air supply channel is connected with the dirt discharge cavity.
10. The grease lubricated main shaft for the multi-wire cutting machine of claim 9, wherein the air supply channel is connected with the front end in a sealing way, and air is continuously blown to the front end in a sealing way to form a back blowing air curtain.
CN202023141182.4U 2020-12-23 2020-12-23 Novel grease lubrication main shaft for multi-wire cutting machine Active CN214109778U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202023141182.4U CN214109778U (en) 2020-12-23 2020-12-23 Novel grease lubrication main shaft for multi-wire cutting machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202023141182.4U CN214109778U (en) 2020-12-23 2020-12-23 Novel grease lubrication main shaft for multi-wire cutting machine

Publications (1)

Publication Number Publication Date
CN214109778U true CN214109778U (en) 2021-09-03

Family

ID=77513852

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202023141182.4U Active CN214109778U (en) 2020-12-23 2020-12-23 Novel grease lubrication main shaft for multi-wire cutting machine

Country Status (1)

Country Link
CN (1) CN214109778U (en)

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