CN206386249U - A kind of efficient adjustable heat abstractor for compressor - Google Patents
A kind of efficient adjustable heat abstractor for compressor Download PDFInfo
- Publication number
- CN206386249U CN206386249U CN201720022126.8U CN201720022126U CN206386249U CN 206386249 U CN206386249 U CN 206386249U CN 201720022126 U CN201720022126 U CN 201720022126U CN 206386249 U CN206386249 U CN 206386249U
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- installing frame
- compressor
- heat abstractor
- bearing seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 239000007787 solid Substances 0.000 claims description 9
- 229910001220 stainless steel Inorganic materials 0.000 claims description 7
- 239000010935 stainless steel Substances 0.000 claims description 7
- 238000009792 diffusion process Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 210000003464 cuspid Anatomy 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 6
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
Abstract
The utility model is related to a kind of heat abstractor for compressor, more particularly to a kind of efficient adjustable heat abstractor for compressor.The technical problems to be solved in the utility model, which is to provide, a kind of can control the efficient adjustable heat abstractor for compressor of exhaust air rate.In order to solve the above-mentioned technical problem, the utility model provides such a efficient adjustable heat abstractor for compressor, includes wind-collecting cover, installing frame, clutch shaft bearing, first rotating shaft, installing plate, second bearing seat, 3rd bearing seat, the second rotating shaft, little gear, big blade etc.；Compressor housing right wall bottom is provided with the first air vent, and compressor housing top left side, which is provided with the top of the second air vent, compressor housing, is provided with installing frame and wind-collecting cover, and wind-collecting cover is in installing frame.Exhaust air rate can be adjusted according to demand for the utility model, it is to avoid the wasting of resources, carry out exhaust air rate regulation by the position for exchanging little gear and middle gear, whole operation process is very convenient.
Description
Technical field
The utility model is related to a kind of heat abstractor for compressor, more particularly to it is a kind of can for the efficient of compressor
Mode heat abstractor.
Background technology
Compressor is a kind of driven fluid machinery that low-pressure gas is promoted to gases at high pressure, is the heart of refrigeration system
It is dirty.It sucks the refrigerant gas of low-temp low-pressure from air intake duct, is operated by motor after being compressed with piston to it, to row
Tracheae discharges the refrigerant gas of HTHP, power is provided for kind of refrigeration cycle, so as to realize compression → condensation → expansion → steaming
The kind of refrigeration cycle of hair.Exhaust air rate currently used for the heat abstractor of compressor is changeless mostly, so there is resource wave
The phenomenon taken.
To sum up, need research and development are a kind of can control the efficient adjustable heat abstractor for compressor of exhaust air rate at present,
To overcome the nonadjustable shortcoming of exhaust air rate in the prior art.
Utility model content
(1) technical problem to be solved
The utility model is in order to overcome the nonadjustable shortcoming of exhaust air rate in the prior art, technology to be solved in the utility model
Problem, which is to provide, a kind of can control the efficient adjustable heat abstractor for compressor of exhaust air rate.
(2) technical scheme
In order to solve the above-mentioned technical problem, the utility model dissipates there is provided such a efficient adjustable for compressor
Thermal, includes wind-collecting cover, installing frame, clutch shaft bearing, first rotating shaft, installing plate, second bearing seat, 3rd bearing seat, the
Two rotating shafts, little gear, big blade, the 3rd rotating shaft, middle gear, vanelets, mobile device, motor, the 4th rotating shaft and gear wheel, pressure
Contracting casing body right wall bottom is provided with the first air vent, and compressor housing top left side is provided with the second air vent, compressor housing top
Portion is provided with installing frame and wind-collecting cover, and wind-collecting cover is in installing frame, and installing frame top center, which is provided with clutch shaft bearing, clutch shaft bearing, leads to
The mode of interference connection is connected with first rotating shaft, and first rotating shaft bottom is provided with installing plate, and installing plate bottom is provided with second bearing
Seat and 3rd bearing seat, 3rd bearing seat is on the left of second bearing seat, the side that the bearing in second bearing seat is connected by interference
Formula is connected with the second rotating shaft, and the second rotating shaft is provided with little gear and big blade, and big blade is below little gear, in 3rd bearing seat
Bearing be connected with the 3rd rotating shaft by way of interference is connected, the 3rd rotating shaft is provided with middle gear and vanelets, and vanelets exist
Below middle gear, vanelets are provided with mobile device, mobile device bottom is provided with electricity above wind-collecting cover on the left of installing frame inner top
Machine, motor bottom is provided with the 4th rotating shaft, and the 4th rotating shaft bottom is provided with gear wheel, and gear wheel is engaged with little gear and middle gear.
Preferably, mobile device includes in slide rail, sliding block, fixed plate, limiting plate, projection and limited block, installing frame and pushed up
Slide rail is provided with the left of portion, slide rail basal sliding formula is connected with sliding block, and slider bottom is provided with fixed plate, and installing frame top left side is provided with
Shifting chute, fixed plate top right side is provided with limiting plate, and limiting plate passes through shifting chute, and limiting plate right upper portion is mobile provided with projection
Limited block is provided with the top of installing frame on the right side of groove, limited block left upper portion is provided with groove, groove and male cooperation.
Preferably, also include and runner is provided with the top of runner and fixture, first rotating shaft, the runner left and right sides is arranged with
It is provided with fixture, fixture at the top of first through hole, the installing frame of the runner left and right sides and is symmetrically provided with the second through hole, the second through hole
It is identical with first through hole shape size.
Preferably, wind-collecting cover outward opening extension diffusion, in horn-like.
Preferably, motor selects servomotor.
Preferably, spacing block of material is stainless steel, its generally solid.
Operation principle：When being radiated, controlled motor is rotated, and drives the 4th axis of rotation, and then drive canine tooth rotation
It is dynamic, so as to drive middle gear to rotate so that the 3rd axis of rotation, drive vanelets to rotate, vanelets rotate the wind that produces via
After wind-collecting cover convergence, blowed to and radiated in compression case body by the second air vent, the hot gas in compression case body can pass through
First air vent is discharged.When needing regulation exhaust air rate, in the case where ensuring that motor is stopped, turned left by mobile device
Mobile motor and thereon device, then rotate 180 ° by first rotating shaft, drive installing plate and device rotates 180 ° thereon so that be big
Blade is exchanged with vanelets position, is exchanged after finishing, and is turned right mobile motor and device thereon by mobile device, until gear wheel
Reset.The rotational speed of gear wheel and little gear is big relative to the rotational speed of gear wheel and middle gear, so the second rotating shaft turns
Dynamic speed is more than the speed of the 3rd axis of rotation so that the exhaust air rate of big blade is far longer than the exhaust air rate of vanelets.In this way,
Exhaust air rate can be adjusted according to demand, it is to avoid the wasting of resources.
Because mobile device includes slide rail, sliding block, fixed plate, limiting plate, projection and limited block, installing frame inner top is left
Side is provided with slide rail, and slide rail basal sliding formula is connected with sliding block, and slider bottom is provided with fixed plate, and installing frame top left side is provided with movement
Groove, fixed plate top right side is provided with limiting plate, and limiting plate passes through shifting chute, and limiting plate right upper portion is provided with projection, and shifting chute is right
Limited block is provided with the top of the installing frame of side, limited block left upper portion is provided with groove, groove and male cooperation, when needing to move canine tooth
During wheel, limiting plate is promoted.Turn left promotion limiting plate, drive fixed plate and device is to left movement thereon, projection leaves groove.Turn right
Limiting plate is promoted, fixed plate is driven and device is moved right thereon, when the projection on limiting plate is sticked into groove, stops promoting
Limiting plate, now gear wheel just reset.And fixation is played in the cooperation of raised and groove, it is to avoid gear wheel in the course of work
Shift and influence operation working properly.
Because also including runner and fixture, runner is provided with the top of first rotating shaft, the runner left and right sides is arranged with solid
Determine to be provided with first through hole on part, fixture, it is symmetrical at the top of the installing frame of the runner left and right sides to be provided with the second through hole, the second through hole with
First through hole shape size is identical, when needing to rotate first rotating shaft, and rotating wheel drives first rotating shaft to rotate, and drives simultaneously
Fixture is rotated, and when fixture rotates 180 °, first through hole is just corresponding with the second through hole, then leads to latch reeve first
Hole is fixed with the second through hole.In this way, can be more convenient to rotate first rotating shaft, while playing fixation, it can more preferably ensure work
The progress of work.
Because the extension diffusion of wind-collecting cover outward opening, in horn-like, so wind-collecting cover can farthest collect air quantity,
Be conducive to radiating.
Because motor selects servomotor, servomotor can adjust its operating power, so according to real work demand,
The power of servomotor work is set, is not only saved, and the radiating effect reached is optimal.
Because spacing block of material is stainless steel, its generally solid, stainless steel is corrosion-resistant, and solid is firm, so prolonging
Its long service life.
(3) beneficial effect
Exhaust air rate can be adjusted according to demand for the utility model, it is to avoid the wasting of resources.By exchanging little gear with
The position of gear carries out exhaust air rate regulation, and whole operation process is very convenient.Gear wheel is moved by mobile device, with
It is easy to subsequent operation.And fixation is played in the cooperation of raised and groove, it is to avoid gear wheel shifts and shadow in the course of work
Operation working properly is rung, the effect of exhaust air rate can be controlled by having reached.
Brief description of the drawings
Fig. 1 is the first main structure diagram of the present utility model.
Fig. 2 is the main structure diagram of the utility model mobile device.
Fig. 3 is second of main structure diagram of the present utility model.
Mark in accompanying drawing for：1- compressor housings, the air vents of 2- first, the air vents of 3- second, 4- wind-collecting covers, 5- is installed
Frame, 6- clutch shaft bearings, 7- first rotating shafts, 8- installing plates, 9- second bearing seats, 10- 3rd bearings seat, the rotating shafts of 11- second, 12-
Little gear, the big blades of 13-, the rotating shafts of 14- the 3rd, 15- middle gears, 16- vanelets, 17- mobile devices, 171- slide rails, 172- is slided
Block, 173- fixed plates, 174- shifting chutes, 175- limiting plates, 176- is raised, 177- limited blocks, 178- grooves, 18- motors, 19-
4th rotating shaft, 20- gear wheels, 21- runners, 22- fixtures, 23- first through hole, the through holes of 24- second.
Embodiment
The utility model is further described with reference to the accompanying drawings and examples.
Embodiment 1
A kind of efficient adjustable heat abstractor for compressor, as Figure 1-3, include wind-collecting cover 4, installing frame 5,
Clutch shaft bearing 6, first rotating shaft 7, installing plate 8, second bearing seat 9, the 10, second rotating shaft 11 of 3rd bearing seat, little gear 12, great Ye
Piece 13, the 3rd rotating shaft 14, middle gear 15, vanelets 16, mobile device 17, motor 18, the 4th rotating shaft 19 and gear wheel 20, compression
The right wall bottom of casing body 1 is provided with the first air vent 2, and the top left side of compressor housing 1 is provided with the second air vent 3, compressor housing 1
Top is provided with installing frame 5 and wind-collecting cover 4, and wind-collecting cover 4 is in installing frame 5, and the top center of installing frame 5 is provided with clutch shaft bearing 6, first
First rotating shaft 7 is connected with bearing 6 by way of interference is connected, the bottom of first rotating shaft 7 is provided with installing plate 8, the bottom of installing plate 8
Provided with second bearing seat 9 and 3rd bearing seat 10, axle of the 3rd bearing seat 10 in the left side of second bearing seat 9, second bearing seat 9
Hold and the second rotating shaft 11 is connected with by way of interference is connected, the second rotating shaft 11 is provided with little gear 12 and big blade 13, great Ye
Piece 13 is below little gear 12, and the bearing in 3rd bearing seat 10 is connected with the 3rd rotating shaft 14 by way of interference is connected, the
Three rotating shafts 14 are provided with middle gear 15 and vanelets 16, and vanelets 16 are below middle gear 15, and vanelets 16 are on wind-collecting cover 4
Side, is provided with mobile device 17 on the left of the inner top of installing frame 5, and the bottom of mobile device 17 is provided with motor 18, and the bottom of motor 18 is provided with the
Four rotating shafts 19, the bottom of the 4th rotating shaft 19 is provided with gear wheel 20, and gear wheel 20 is engaged with little gear 12 and middle gear 15.
Mobile device 17 includes slide rail 171, sliding block 172, fixed plate 173, limiting plate 175, projection 176 and limited block
177, the inner top of installing frame 5 left side is provided with slide rail 171, and the basal sliding formula of slide rail 171 is connected with sliding block 172, and the bottom of sliding block 172 is set
There is fixed plate 173, the top left side of installing frame 5 is provided with shifting chute 174, and the top right side of fixed plate 173 is provided with limiting plate 175, spacing
Plate 175 passes through shifting chute 174, and the right upper portion of limiting plate 175 is set provided with projection 176, the top of installing frame 5 on the right side of shifting chute 174
Limited location block 177, the left upper portion of limited block 177 is provided with groove 178, and groove 178 coordinates with projection 176.
Also include runner 21 and fixture 22, the top of first rotating shaft 7 is provided with runner 21, and the left and right sides of runner 21 is symmetrically set
Have and first through hole 23 is provided with fixture 22, fixture 22, the top of installing frame 5 of the left and right sides of runner 21 is symmetrically provided with second and led to
Hole 24, the second through hole 24 is identical with the shape size of first through hole 23.
The outward opening of wind-collecting cover 4 extension diffusion, in horn-like.
Motor 18 selects servomotor.
The material of limited block 177 is stainless steel, its generally solid.
Operation principle：When being radiated, controlled motor 18 is rotated, and drives the 4th rotating shaft 19 to rotate, and then drives canine tooth
Wheel 20 is rotated, so as to drive middle gear 15 to rotate so that the 3rd rotating shaft 14 is rotated, and drives vanelets 16 to rotate, 16 turns of vanelets
After the wind of movable property life is converged via wind-collecting cover 4, blowed to and radiated in compressor housing 1 by the second air vent 3, compression case
Hot gas in body 1 can be discharged by the first air vent 2.When needing regulation exhaust air rate, the feelings that motor 18 is stopped are being ensured
Under condition, turned left mobile motor 18 and device thereon by mobile device 17, first rotating shaft 7 is then rotated 180 °, drives and installs
Plate 8 and thereon device rotate 180 ° so that big blade 13 is exchanged with the position of vanelets 16, is exchanged after finishing, is passed through mobile device
17 turn right mobile motor 18 and device thereon, until gear wheel 20 resets.Gear wheel 20 is relative with the rotational speed of little gear 12
It is big in the rotational speed of gear wheel 20 and middle gear 15, so the speed that the second rotating shaft 11 is rotated is more than what the 3rd rotating shaft 14 was rotated
Speed so that the exhaust air rate of big blade 13 is far longer than the exhaust air rate of vanelets 16.In this way, can be carried out according to demand to exhaust air rate
Regulation, it is to avoid the wasting of resources.
Because mobile device 17 includes slide rail 171, sliding block 172, fixed plate 173, limiting plate 175, projection 176 and spacing
Slide rail 171 is provided with the left of block 177, the inner top of installing frame 5, the basal sliding formula of slide rail 171 is connected with sliding block 172, the bottom of sliding block 172
Provided with fixed plate 173, the top left side of installing frame 5 is provided with shifting chute 174, and the top right side of fixed plate 173 is provided with limiting plate 175, limit
Position plate 175 passes through shifting chute 174, and the right upper portion of limiting plate 175 is provided with projection 176, the top of installing frame 5 on the right side of shifting chute 174
Provided with limited block 177, the left upper portion of limited block 177 is provided with groove 178, and groove 178 coordinates with projection 176, mobile big when needing
During gear 20, limiting plate 175 is promoted.Turn left and promote limiting plate 175, drive fixed plate 173 and device is raised to left movement thereon
176 leave groove 178.Turn right and promote limiting plate 175, drive fixed plate 173 and device is moved right thereon, when limiting plate 175
On projection 176 when sticking into groove 178, stop promoting limiting plate 175, now gear wheel 20 just resets.And projection 176
Coordinate with groove 178 and play fixation, it is to avoid gear wheel 20 shifts and influences operation working properly in the course of work.
Because also including runner 21 and fixture 22, the top of first rotating shaft 7 is provided with runner 21, the left and right sides pair of runner 21
Claim to be provided with fixture 22, is provided with first through hole 23 on fixture 22, the top of installing frame 5 of the left and right sides of runner 21 is symmetrical to be provided with the
Two through holes 24, the second through hole 24 is identical with the shape size of first through hole 23, when needing to rotate first rotating shaft 7, rotating wheel 21,
Drive first rotating shaft 7 rotate, while drive fixture 22 rotate, when fixture 22 rotate 180 ° when, first through hole 23 just with
The correspondence of second through hole 24, then latch reeve first through hole 23 is fixed with the second through hole 24.In this way, can be more convenient to rotate
First rotating shaft 7, while playing fixation, can more preferably ensure the progress of work.
Because the outward opening of wind-collecting cover 4 extension diffusion, in horn-like, so wind-collecting cover 4 can farthest collect wind
Amount, is conducive to radiating.
Because motor 18 selects servomotor, servomotor can adjust its operating power, so according to real work need
Ask, the power of setting servomotor work is not only saved, and the radiating effect reached is optimal.
Because the material of limited block 177 is stainless steel, its generally solid, stainless steel is corrosion-resistant, and solid is firm, so
Extend its service life.
Embodiment described above only expresses preferred embodiment of the present utility model, and it describes more specific and detailed,
But therefore it can not be interpreted as the limitation to the utility model the scope of the claims.It should be pointed out that for the common of this area
For technical staff, without departing from the inventive concept of the premise, some deformations can also be made, improves and substitutes, these are all
Belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (6)
1. a kind of efficient adjustable heat abstractor for compressor, it is characterised in that include wind-collecting cover (4), installing frame
(5), clutch shaft bearing (6), first rotating shaft (7), installing plate (8), second bearing seat (9), 3rd bearing seat (10), the second rotating shaft
(11), little gear (12), big blade (13), the 3rd rotating shaft (14), middle gear (15), vanelets (16), mobile device (17), electricity
Machine (18), the 4th rotating shaft (19) and gear wheel (20), compressor housing (1) right wall bottom are provided with the first air vent (2), compressor
Housing (1) top left side, which is provided with the top of the second air vent (3), compressor housing (1), is provided with installing frame (5) and wind-collecting cover (4), collection
Fan housing (4) is in installing frame (5), and installing frame (5) top center is provided with clutch shaft bearing (6), clutch shaft bearing (6) to be connected by interference
The mode connect is connected with first rotating shaft (7), and first rotating shaft (7) bottom is provided with installing plate (8), and installing plate (8) bottom is provided with second
Bearing block (9) and 3rd bearing seat (10), 3rd bearing seat (10) is on the left of second bearing seat (9), in second bearing seat (9)
Bearing is connected with the second rotating shaft (11) by way of interference is connected, and the second rotating shaft (11) is provided with little gear (12) and big blade
(13), big blade (13) is below little gear (12), and the bearing in 3rd bearing seat (10) is connected by way of interference is connected
There is the 3rd rotating shaft (14), the 3rd rotating shaft (14) is provided with middle gear (15) and vanelets (16), and vanelets (16) are in middle gear
(15) lower section, vanelets (16) are provided with mobile device (17), mobile dress above wind-collecting cover (4) on the left of installing frame (5) inner top
(17) bottom is put provided with motor (18), motor (18) bottom is provided with the 4th rotating shaft (19), the 4th rotating shaft (19) bottom is provided with canine tooth
Take turns (20), gear wheel (20) is engaged with little gear (12) and middle gear (15).
2. a kind of efficient adjustable heat abstractor for compressor according to claim 1, it is characterised in that mobile dress
Put (17) and include slide rail (171), sliding block (172), fixed plate (173), limiting plate (175), raised (176) and limited block
(177) slide rail (171), is provided with the left of installing frame (5) inner top, slide rail (171) basal sliding formula is connected with sliding block (172), it is sliding
Block (172) bottom is provided with fixed plate (173), and installing frame (5) top left side is provided with shifting chute (174), fixed plate (173) top right
Side is provided with limiting plate (175), and limiting plate (175) passes through shifting chute (174), and limiting plate (175) right upper portion is provided with projection
(176) limited block (177), is provided with the top of the installing frame (5) on the right side of shifting chute (174), limited block (177) left upper portion is provided with recessed
Groove (178), groove (178) coordinates with raised (176).
3. a kind of efficient adjustable heat abstractor for compressor according to claim 2, it is characterised in that also include
Have and runner (21) is provided with the top of runner (21) and fixture (22), first rotating shaft (7), runner (21) left and right sides is arranged with solid
Determine to be provided with first through hole (23) on part (22), fixture (22), be symmetrically provided with the top of the installing frame (5) of runner (21) left and right sides
Second through hole (24), the second through hole (24) is identical with first through hole (23) shape size.
4. a kind of efficient adjustable heat abstractor for compressor according to claim 3, it is characterised in that wind-collecting cover
(4) outward opening extension diffusion, in horn-like.
5. a kind of efficient adjustable heat abstractor for compressor according to claim 2, it is characterised in that motor
(18) servomotor is selected.
6. a kind of efficient adjustable heat abstractor for compressor according to claim 2, it is characterised in that limited block
(177) material is stainless steel, its generally solid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720022126.8U CN206386249U (en) | 2017-01-10 | 2017-01-10 | A kind of efficient adjustable heat abstractor for compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720022126.8U CN206386249U (en) | 2017-01-10 | 2017-01-10 | A kind of efficient adjustable heat abstractor for compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206386249U true CN206386249U (en) | 2017-08-08 |
Family
ID=59492892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720022126.8U Expired - Fee Related CN206386249U (en) | 2017-01-10 | 2017-01-10 | A kind of efficient adjustable heat abstractor for compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206386249U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109449731A (en) * | 2018-09-20 | 2019-03-08 | 深圳市大德激光技术有限公司 | A kind of ultrafast pulse optical fiber laser |
| CN110328398A (en) * | 2019-06-25 | 2019-10-15 | 盐城市朗力机械有限公司 | A kind of milling head and heat dissipating method being convenient for heat dissipation |
-
2017
- 2017-01-10 CN CN201720022126.8U patent/CN206386249U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109449731A (en) * | 2018-09-20 | 2019-03-08 | 深圳市大德激光技术有限公司 | A kind of ultrafast pulse optical fiber laser |
| CN109449731B (en) * | 2018-09-20 | 2019-09-20 | 深圳市大德激光技术有限公司 | A kind of ultrafast pulse optical fiber laser |
| CN110328398A (en) * | 2019-06-25 | 2019-10-15 | 盐城市朗力机械有限公司 | A kind of milling head and heat dissipating method being convenient for heat dissipation |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170808 |