CN108081043A - Sucker rod polished rod roughly grinds system - Google Patents
Sucker rod polished rod roughly grinds system Download PDFInfo
- Publication number
- CN108081043A CN108081043A CN201711385316.7A CN201711385316A CN108081043A CN 108081043 A CN108081043 A CN 108081043A CN 201711385316 A CN201711385316 A CN 201711385316A CN 108081043 A CN108081043 A CN 108081043A
- Authority
- CN
- China
- Prior art keywords
- wheel
- slide carriage
- rubber
- thousand
- stock shelf
- 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.)
- Pending
Links
Classifications
-
- 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
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/02—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
- B24B5/04—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding cylindrical surfaces externally
-
- 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
- B24B27/0023—Other grinding machines or devices grinding machines with a plurality of working posts
-
- 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
- B24B27/0076—Other grinding machines or devices grinding machines comprising two or more grinding tools
-
- 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
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/005—Feeding or manipulating devices specially adapted to grinding machines
-
- 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
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/20—Drives or gearings; Equipment therefor relating to feed movement
Abstract
The present invention relates to a kind of sucker rod polished rods to roughly grind system, and including stock shelf, discharge rack, corase grinding device, stock shelf is identical with discharge rack structure, equally spaced on the central axes on stock shelf and discharge rack top to be provided with the oblique idler wheel of kiss-coating, it is characterized in that：Equally spaced be provided with resets positive idler wheel on the central axes on stock shelf and discharge rack top, and the bearing lower part for each resetting positive idler wheel connects a reset jack-up cylinder；Roughly grinding device includes pony sill, two groups of corase grinding wheel mechanisms are installed on pony sill, two groups of corase grinding wheel mechanisms are arranged along the central axes direction on pony sill top, the pony sill both ends that stock shelf and discharge rack are arranged on corase grinding device are connected with pony sill, and the central axes of stock shelf, the pedestal of corase grinding device and discharge rack top are point-blank.Its advantage is：High degree of automation, polishing grinding are efficient, and labor strength is small.
Description
Technical field
The present invention relates to a kind of sucker rod polished rods to roughly grind system, belongs to petroleum equipment technical field of mechanical processing.
Background technology
Sucker rod polished rod is uppermost one of rod string, belongs to slender rod piece, sucker rod standard SY/T5029-2013
Regulation, surface roughness criteria requirement is Ra：0.2 μm to 0.8 μm, diameter tolerance is generally 0.38mm, commonly uses sucker rod polished rod
It is a diameter of：φ 25.40mm, 28.58mm, 31.75mm and 38.10mm, common grade have：D grades, KD grades, HL grades and HY grades, it is
The first strut to downhole pump transfer motion power and the unique strut with wellhead assembly holding sealing state, standard are long
Degree is generally：（2.4-40）Ft, each length standard have 8 specifications, and polished rod polishing will grind off a 0.3mm left sides in diametric(al)
The right side, original equipment are simply polished repeatedly with abrasive band, and can only grind off 0.015mm by stock removal polishing polishing diametric(al) arrives
0.02mm, efficiency are very low.
The content of the invention
The object of the present invention is to provide a kind of efficient sucker rod polished rods of polishing grinding to roughly grind mechanism.
The purpose of the present invention is what is be accomplished by the following way：
The present invention includes stock shelf, discharge rack, corase grinding device, and stock shelf is identical with discharge rack structure, in stock shelf and discharge rack
It is equally spaced on the central axes on top to be provided with the oblique idler wheel of kiss-coating, it is characterized in that：In the central axes on stock shelf and discharge rack top
Upper equally spaced be provided with resets positive idler wheel, and the bearing lower part for each resetting positive idler wheel connects a reset jack-up cylinder；Corase grinding
Device includes pony sill, two groups of corase grinding wheel mechanisms is equipped on pony sill, two groups of corase grinding wheel mechanisms are along pony sill top
Axis direction arranges, and corase grinding wheel mechanism includes thousand blade wheel slide carriage devices and rubber to taking turns slide carriage device, thousand blade wheel slide carriages dress
It puts by thousand blade wheel slide carriage dovetail groove track bases, Chiba piece slipping slide carriage, thousand blade wheel slide carriages activity commutation pusher cylinder, thousand
Blade wheel driving motor, belt gear, Chiba piece wheel assembly composition, thousand blade wheel slide carriage dovetail groove track bases are transversely mounted
One side on pony sill is equipped with the Chiba piece slipping that can be moved back and forth on thousand blade wheel slide carriage dovetail groove track bases
Slide carriage, the cylinder rod of thousand blade wheel slide carriages activity commutation pusher cylinder is connected with Chiba piece slipping slide carriage, for promoting Chiba
Piece slipping slide carriage moves back and forth, and is equipped with bearing block on Chiba piece slipping slide carriage, is equipped in bearing block by bearing
Cantilever Chiba piece wheel shaft installs thousand blade wheels in cantilever Chiba piece wheel shaft one end, and the axis of Chiba piece wheel drive motor passes through transmission
Device and cantilever Chiba piece wheel axis connection；Rubber is to wheel slide carriage device by rubber to wheel slide carriage dovetail guide seat, vulcanization rubber pair
Wheel activity slide carriage, vulcanization rubber clamp workpiece to wheel activity slide carriage cylinder, sized flap wheel and rubber to wheel assembly, vulcanization rubber to wheel
To wheel drive motor form, rubber is mounted on pony sill to wheel slide carriage dovetail guide seat for cylinder handle, deflecting umbrella gear box, rubber
The upper opposite side opposite with thousand blade wheel slide carriage dovetail groove track bases, can to being equipped on wheel slide carriage dovetail guide seat in rubber
The vulcanization rubber of back-and-forth motion is to wheel activity slide carriage, and vulcanization rubber is to the cylinder rod of wheel activity slide carriage cylinder with vulcanization rubber to wheel
Movable slide carriage connection, for vulcanization rubber is promoted to move back and forth wheel activity slide carriage, in vulcanization rubber to leading on wheel activity slide carriage
Cross bearing block, axis be equipped with vulcanization rubber to wheel, vulcanization rubber to take turns it is opposite with thousand blade wheels, and vulcanization rubber to the vertical of wheel
Face longitudinal direction, there are one angle of inclination, is used as the active force that workpiece is promoted longitudinally to advance with wheel between centers；Deflecting umbrella gear box and
Rubber is also mounted at wheel drive motor vulcanization rubber on wheel activity slide carriage, rubber passes through change to the output shaft of wheel drive motor
To umbrella gear box with vulcanization rubber to the axis connection of wheel；Stock shelf and discharge rack are arranged on the pony sill both ends and bottom of corase grinding device
Mounting is connected, and the central axes of stock shelf, the pedestal of corase grinding device and discharge rack top are point-blank.
The vulcanization rubber is 5~25 ° to the vertical plane longitudinal direction of wheel and the angle of inclination of wheel between centers.
It is an advantage of the invention that：High degree of automation, polishing grinding are efficient, and labor strength is small.
Description of the drawings
Fig. 1 is structure diagram of the present invention in feed state；
Fig. 2 is structure diagram of the present invention in discharge state；
Fig. 3 is top view of the present invention in corase grinding state；
Fig. 4 is the A direction views of Fig. 3；
Fig. 5 is the I portions enlarged drawing of Fig. 2；
Fig. 6 is the structure diagram of the corase grinding device of the present invention；
Fig. 7 is to reset the schematic view of the mounting position for jacking up cylinder, resetting positive idler wheel and the oblique idler wheel of kiss-coating；
Fig. 8 is the top view of Fig. 7.
In figure：1----- firm bankings；2-----, which resets, jacks up cylinder；3----- resets positive idler wheel；4----- electric appliances are grasped
Make panel；5----- rubber is to taking turns slide carriage device；Thousand blade wheel slide carriage devices of 6-----；7----- steel construction firm banking framves；
8----- sucker rod polished rods；The oblique idler wheel of 9----- kiss-coatings；10----- belt gears；Thousand blade wheel slide carriage dovetails of 11-----
Slot track base；Thousand blade wheel slide carriage heads of 12----- commutation pusher cylinder；13----- Chiba piece wheel drive motors；
14----- Chiba piece wheel assemblies；15----- Chiba piece slipping slide carriages；16----- vulcanizations rubber wheel, axis, bearing block and shield
Cover；17----- vulcanizes rubber to wheel activity slide carriage；18--------- rubber is to taking turns slide carriage dovetail guide seat；19----- workpiece
It resets and jacks up the straight idler wheel roller-way operation handle of cylinder；20-------- vulcanizes rubber to wheel activity slide carriage cylinder；21----- Chiba
Wheel clamps workpiece cylinder handle with rubber to wheel；22----- rubber is to wheel drive motor；23----- deflecting umbrella gear box；
24----- stock shelfs；25----- discharge racks；Thousand blade wheels of 26-----；27----- vulcanizes rubber wheel.
Specific embodiment
Referring to the drawings, the present invention includes stock shelf 24, discharge rack 25, corase grinding device, and stock shelf is identical with discharge rack structure,
It is the linear steel frame supported by the firm banking 1 set at equal intervals, on the central axes on stock shelf and discharge rack top
It is equally spaced to be provided with the oblique idler wheel 9 of kiss-coating, it is equally spaced on the central axes on stock shelf and discharge rack top to be provided with reset just
Idler wheel 3, the bearing lower part for each resetting positive idler wheel connect a reset jack-up cylinder 2；Roughly grinding device includes steel construction
Pony sill 7 is equipped with two groups of corase grinding wheel mechanisms, central axes direction of two groups of corase grinding wheel mechanisms along pony sill top on pony sill
Arrangement, corase grinding wheel mechanism include thousand blade wheel slide carriage devices 6 and rubber to taking turns slide carriage device 5, and thousand blade wheel slide carriage devices are by thousand
Blade wheel slide carriage dovetail groove track base 11, Chiba piece slipping slide carriage 15, thousand blade wheel slide carriages activity commutation pusher cylinder 12, thousand
Blade wheel driving motor 13, belt gear 10, Chiba piece wheel assembly 14 form, wherein：Chiba piece wheel assembly is by Chiba piece
Wheel 26, cantilever Chiba piece wheel shaft, bearing block and shield composition；Thousand blade wheel slide carriage dovetail groove track bases are transversely mounted on pony sill
On one side, the Chiba piece slipping slide carriage that can be moved back and forth is installed on thousand blade wheel slide carriage dovetail groove track bases, thousand
The cylinder rod of blade wheel slide carriage activity commutation pusher cylinder is connected with Chiba piece slipping slide carriage, for promoting Chiba piece slipping
Slide carriage moves back and forth, and is equipped with bearing block on Chiba piece slipping slide carriage, and cantilever Chiba is equipped with by bearing in bearing block
Piece wheel shaft, thousand blade wheels are installed in cantilever Chiba piece wheel shaft one end, and the axis of Chiba piece wheel drive motor by transmission device and hangs
Arm Chiba piece wheel axis connection；Rubber is movable to wheel to wheel slide carriage dovetail guide seat 18, vulcanization rubber by rubber to wheel slide carriage device
Slide carriage 17, vulcanization rubber clamp workpiece to wheel activity slide carriage cylinder 20, sized flap wheel and rubber to wheel assembly 16, vulcanization rubber to wheel
Cylinder handle 21, deflecting umbrella gear box 23, rubber form wheel drive motor 22, wherein：Vulcanize rubber to wheel assembly by vulcanizing
Rubber wheel 27, axis, bearing block and shield composition；Rubber is mounted on pony sill wheel slide carriage dovetail guide seat and is slipped with thousand blade wheels
The opposite opposite side of plate dovetail groove track base, in rubber to being equipped with the vulcanization that can be moved back and forth on wheel slide carriage dovetail guide seat
Rubber is connected wheel activity slide carriage with vulcanization rubber the cylinder rod of wheel activity slide carriage cylinder wheel activity slide carriage, vulcanization rubber,
For vulcanization rubber is promoted to move back and forth wheel activity slide carriage, in vulcanization rubber to being pacified on wheel activity slide carriage by bearing block, axis
Equipped with vulcanization rubber to wheel, vulcanization rubber is opposite with thousand blade wheels to taking turns, and vulcanizes rubber to the vertical plane longitudinal direction of wheel and wheel shaft
Between there are one 5~25 ° of angle of inclination, be used as the active force that workpiece is promoted longitudinally to advance；Deflecting umbrella gear box and rubber
Vulcanization rubber is also mounted to wheel drive motor on wheel activity slide carriage, rubber passes through deflecting umbrella to the output shaft of wheel drive motor
Gear-box is with vulcanization rubber to the axis connection of wheel；Stock shelf and discharge rack are arranged on pony sill both ends and the pony sill of corase grinding device
Linking, and stock shelf, roughly grind device pedestal and discharge rack top central axes point-blank, two groups of corase grinding wheel mechanisms
Electric control switch is uniformly mounted on operation of electrical appliances panel 4.
20 meters of the overall length of system of the present invention, stock shelf and discharge rack part are respectively 9 meters long, and corase grinding device occupies 2
Rice, stock shelf and discharge rack part are uniformly mounted with 5 with the positive idler wheel of reset for jacking up cylinder and driving is resetted respectively, work as sucker rod
After polished rod 8 has ground one time, reset positive idler wheel and jack up, sucker rod polished rod is manually pushed or pull on by idler wheel, can make oil pumping rapidly
Bar polished rod returns to initial position, falls the positive idler wheel of reset of jack-up, and sucker rod polished rod is fallen in the oblique idler wheel of kiss-coating, can be carried out again
Polishing, while 11 groups of oblique idler wheels of kiss-coating are uniformly mounted with respectively in stock shelf and discharge rack, but all without power source, two groups of corase grinding
Mechanism is taken turns, wheel assembly is made of the Chiba piece wheel assembly of 80 mesh φ, 300 × 50 ㎜ and the vulcanization rubber of identical size respectively, sulphur
Change rubber, which grades to wheel assembly and its motor driving part, is all capable of mounted on one on the slide carriage of anterior-posterior translation, while vulcanizes rubber
Glue is to taking turns in 5~25 ° inclined vertically, the main power source longitudinally to advance as sucker rod polished rod；It is driven by the cylinder vulcanization
Rubber moves back and forth wheel slide carriage, and after corase grinding starts, cylinder remains certain pressing force, promotes a whole set of vulcanization rubber pair
It takes turns chute mechanism laterally to compress, vulcanization rubber is made to withstand sucker rod polished rod one side to wheel；The another side of sucker rod polished rod is by Chiba
Piece wheel compresses, and thousand blade wheels are polishing cutting tool first, and sucker rod polished rod rotation is responsible for jointly together to wheel secondly with rubber
Turn power source, reach sucker rod polished rod it is anti-dandruff while, drive sucker rod polished rod rotation；When sucker rod polished rod all passes through
Afterwards, operation handle retracts cylinder commutation, thousand blade wheel slide carriages；Chiba piece wheel assembly is also integrally fixed on slide carriage, passes through gas
Cylinder driving can move back and forth, thousand blade wheels by motor, pass through belt pulley, belt driving rotation, thousand blade wheels and vulcanization rubber
Glue is identical to the direction of rotation of wheel, and the motive power that sucker rod polished rod is rotated and longitudinally advanced is realized exactly by this two groups of wheels
's；The center of sucker rod polished rod is less than thousand blade wheels and vulcanizes center of the rubber to wheel, and thousand blade wheels and vulcanization rubber are to wheel
Center be contour；This set system can improve effect compared with belt sander（3.5-4）Times, that is, be often ground once,
Sucker rod polished rod diameter can be reduced（0.07-0.08）mm（Ordinary circumstance corase grinding will carry out《3-4》Time, it specifically will be according to workpiece
Depending on initial surface quality）；And belt sander often polishes a diameter of work and can reduce（0.015-0.02）Mm, but roughly grinding
After finishing, belt sander（Abrasive band is 400 mesh）Essence is also needed again to throw one time to require with regard to that can reach；This set system belongs to corase grinding letter
Easy device, the level that workpiece surface roughness can only be made to reach 1.6 μm of Ra, so, the surface roughness of final workpiece is also used
Abrasive band polishing machines one time and just can guarantee standard requirement.
Claims (2)
1. a kind of sucker rod polished rod roughly grinds system, including stock shelf, discharge rack, corase grinding device, stock shelf and discharge rack structure phase
Together, it is equally spaced on the central axes on stock shelf and discharge rack top to be provided with the oblique idler wheel of kiss-coating, it is characterized in that：In stock shelf and
Equally spaced be provided with resets positive idler wheel on the central axes on discharge rack top, and the bearing lower part for each resetting positive idler wheel connects one
It resets and jacks up cylinder；Roughly grinding device includes pony sill, and two groups of corase grinding wheel mechanisms, two groups of corase grinding wheel mechanisms are equipped on pony sill
It is arranged along the central axes direction on pony sill top, corase grinding wheel mechanism includes thousand blade wheel slide carriage devices and rubber to wheel slide carriage dress
It puts, thousand blade wheel slide carriage devices are lived by thousand blade wheel slide carriage dovetail groove track bases, Chiba piece slipping slide carriage, thousand blade wheel slide carriages
Move to pusher cylinder, Chiba piece wheel drive motor, belt gear, Chiba piece wheel assembly composition, thousand blade wheel slide carriage swallows
Stern notch track base is transversely mounted on the one side on pony sill, and being equipped on thousand blade wheel slide carriage dovetail groove track bases can be front and rear
Mobile Chiba piece slipping slide carriage, the cylinder rod and Chiba piece slipping slide carriage of thousand blade wheel slide carriages activity commutation pusher cylinder
For Chiba piece slipping slide carriage is promoted to move back and forth, bearing block, bearing block are equipped on Chiba piece slipping slide carriage for connection
In cantilever Chiba piece wheel shaft is equipped with by bearing, thousand blade wheels, Chiba piece wheel drive are installed in cantilever Chiba piece wheel shaft one end
The axis of motor passes through transmission device and cantilever Chiba piece wheel axis connection；Rubber leads wheel slide carriage dovetail by rubber wheel slide carriage device
Rail chair, vulcanization rubber to wheel activity slide carriage, vulcanization rubber to wheel assembly, vulcanization rubber to wheel activity slide carriage cylinder, sized flap wheel with
Rubber clamps wheel workpiece cylinder handle, deflecting umbrella gear box, rubber to wheel drive motor form, and rubber leads wheel slide carriage dovetail
Rail chair is mounted on opposite side opposite with thousand blade wheel slide carriage dovetail groove track bases on pony sill, and wheel slide carriage dovetail is led in rubber
The vulcanization rubber that can be moved back and forth is installed to wheel activity slide carriage on rail chair, vulcanization rubber is to the cylinder of wheel activity slide carriage cylinder
Bar is connected wheel activity slide carriage with vulcanization rubber, for vulcanization rubber is promoted to move back and forth wheel activity slide carriage, in vulcanization rubber
To being equipped with vulcanization rubber to wheel by bearing block, axis on wheel activity slide carriage, vulcanization rubber is opposite with thousand blade wheels to taking turns, and sulphur
Change rubber to the vertical plane longitudinal direction of wheel with taking turns between centers there are one angle of inclination, be used as the active that workpiece is promoted longitudinally to advance
Power；Deflecting umbrella gear box and rubber are also mounted at wheel drive motor vulcanization rubber on wheel activity slide carriage, rubber is to wheel drive
The output shaft of motor is by deflecting umbrella gear box with vulcanization rubber to the axis connection of wheel；Stock shelf and discharge rack are arranged on corase grinding dress
The pony sill both ends put are connected with pony sill, and the central axes of stock shelf, the pedestal of corase grinding device and discharge rack top are at one
On straight line.
2. sucker rod polished rod according to claim 1 roughly grinds system, it is characterized in that：The vulcanization rubber is to the vertical plane of wheel
Longitudinal direction and the angle of inclination of wheel between centers are 5~25 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711385316.7A CN108081043A (en) | 2017-12-20 | 2017-12-20 | Sucker rod polished rod roughly grinds system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711385316.7A CN108081043A (en) | 2017-12-20 | 2017-12-20 | Sucker rod polished rod roughly grinds system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108081043A true CN108081043A (en) | 2018-05-29 |
Family
ID=62177516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711385316.7A Pending CN108081043A (en) | 2017-12-20 | 2017-12-20 | Sucker rod polished rod roughly grinds system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108081043A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110103108A (en) * | 2019-06-05 | 2019-08-09 | 福州大学 | A kind of insulation mandrel grinding apparatus and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202053134U (en) * | 2011-03-23 | 2011-11-30 | 烟台海歌机床有限公司 | Centerless abrasive belt grinding machine |
| CN102275102A (en) * | 2011-08-31 | 2011-12-14 | 王万法 | Centerless cylindrical grinding machine for cylinder tube of full-automatic hydraulic cylinder |
| CN202668271U (en) * | 2012-06-14 | 2013-01-16 | 淮北中矿机械电子工程中心 | Centerless shaft polishing machine |
| JP2013188816A (en) * | 2012-03-13 | 2013-09-26 | Kuretoishi Kk | Centerless grinding wheel |
| CN207953379U (en) * | 2017-12-20 | 2018-10-12 | 丰达石油装备股份有限公司 | Sucker rod polished rod roughly grinds system |
-
2017
- 2017-12-20 CN CN201711385316.7A patent/CN108081043A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202053134U (en) * | 2011-03-23 | 2011-11-30 | 烟台海歌机床有限公司 | Centerless abrasive belt grinding machine |
| CN102275102A (en) * | 2011-08-31 | 2011-12-14 | 王万法 | Centerless cylindrical grinding machine for cylinder tube of full-automatic hydraulic cylinder |
| JP2013188816A (en) * | 2012-03-13 | 2013-09-26 | Kuretoishi Kk | Centerless grinding wheel |
| CN202668271U (en) * | 2012-06-14 | 2013-01-16 | 淮北中矿机械电子工程中心 | Centerless shaft polishing machine |
| CN207953379U (en) * | 2017-12-20 | 2018-10-12 | 丰达石油装备股份有限公司 | Sucker rod polished rod roughly grinds system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110103108A (en) * | 2019-06-05 | 2019-08-09 | 福州大学 | A kind of insulation mandrel grinding apparatus and method |
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