CN106838593A - Piston type lubricating pump and lubricating system thereof - Google Patents
Piston type lubricating pump and lubricating system thereof Download PDFInfo
- Publication number
- CN106838593A CN106838593A CN201710223328.3A CN201710223328A CN106838593A CN 106838593 A CN106838593 A CN 106838593A CN 201710223328 A CN201710223328 A CN 201710223328A CN 106838593 A CN106838593 A CN 106838593A
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- Prior art keywords
- piston
- worm
- pump
- piston rod
- oil
- 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.)
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- 230000001050 lubricating effect Effects 0.000 title claims abstract description 59
- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 238000003860 storage Methods 0.000 claims abstract description 7
- 239000006071 cream Substances 0.000 claims description 12
- 239000000446 fuel Substances 0.000 claims description 12
- 238000005520 cutting process Methods 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 239000004677 Nylon Substances 0.000 claims description 6
- 229920001778 nylon Polymers 0.000 claims description 6
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000012530 fluid Substances 0.000 claims 1
- 239000003921 oil Substances 0.000 description 35
- 238000005461 lubrication Methods 0.000 description 8
- 239000004519 grease Substances 0.000 description 7
- 239000010687 lubricating oil Substances 0.000 description 6
- 230000009467 reduction Effects 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 230000011664 signaling Effects 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000012549 training Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N13/00—Lubricating-pumps
- F16N13/02—Lubricating-pumps with reciprocating piston
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N13/00—Lubricating-pumps
- F16N13/02—Lubricating-pumps with reciprocating piston
- F16N13/06—Actuation of lubricating-pumps
- F16N13/10—Actuation of lubricating-pumps with mechanical drive
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N23/00—Special adaptations of check valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Reciprocating Pumps (AREA)
Abstract
Piston lubricating pump and lubricating system thereof belong to the technical field of grain shaking velvet. The piston type lubricating pump comprises a pump body, a piston rod, a worm wheel, a worm, a cam, a pressing frame and a worm driving mechanism, wherein an oil storage cavity for storing oil is formed in a hollow inner cavity of the pump body, a piston seat for containing the piston rod is arranged in the oil storage cavity, a piston rod cavity for containing the piston rod is formed at the upper end of the piston seat, the piston rod is sleeved and penetrated in the piston rod cavity through a spring, the top of the piston rod cavity is covered by a cover plate, the top end of the piston rod penetrates out of the cover plate, an oil inlet and an oil outlet which are mutually vertical and communicated are formed at the lower end of the piston seat, one-way valves are arranged in the oil inlet and the oil outlet, the worm driving mechanism is fixedly arranged at the top of the pump body, the worm driving mechanism is connected with the worm to drive the worm to rotate, the worm wheel and the, the middle sections of the cam and the pressing frame are provided with mutually butted parts.
Description
Technical field
It is especially relevant with a kind of piston type lubricating pump and its lubricating system the invention belongs to lubricating pump device field.
Background technology
Lubricating grease can reduce mechanical friction, ageing of metal and anti-gas-leak, oil leak, leak be prevented, to ensure plant equipment
Regular event.In the various plant equipment such as metallurgy, mine, colliery, transport, it is common to use grease lubrication sliding bearing, remove
It is dilute for stuffing cycle is short, grease consistency outside the method for artificial smearing lubricating grease, and oil site surrounding enviroment are severe
Need to inject lubricating grease with lubricating pump.And how to realize that quantifying for lubricating grease uses, reach the normal lubrication need for both meeting equipment
Will, the consumption of lubricating grease can be controlled again, it is cost-effective, just turn into the new problem of research.Publication No. CN204345218U is disclosed
A kind of batch (-type) measured lubrication system, it is characterised in that including mechanical device and electrical control gear, the mechanical device by
Motor, electromagnetic clutch and the lubricating pump composition being sequentially connected, electrical control gear is by Switching Power Supply, air switch, contactor
With reciprocating time relay composition, Switching Power Supply is connected with the power circuit of motor, in parallel empty successively in its inlet circuit
Air cock, reciprocating time relay and contactor, the output end connection electromagnetic clutch of Switching Power Supply.Filled by electrical control
The electromagnetic clutch folding between controlled motor and lubricating pump is put, realization carries out batch (-type) quantitative filling lubrication to institute's lubricating utensil
Fat.Although this measured lubrication system necessarily solves the problems, such as measured lubrication, the connection of its measured lubrication device is complicated, and
And just in case the situation that electrical part appearance is damaged this may result in lubricating pump and cannot normally use, for the situation, present patent application
People has researched and developed a kind of piston type lubricating pump and its lubricating system, it is intended to overcome drawbacks described above.
The content of the invention
The purpose of the present invention aims to provide a kind of by worm and gear weight feed piston type lubricating pump and its lubricating system.
Therefore, the present invention uses following technical scheme：Piston type lubricating pump, including it is the pump housing, piston rod, worm gear, worm screw, convex
Wheel, pressure rack and worm drive mechanism, pump housing hollow cavity form the shoe cream room of oil storage, are set in shoe cream room and accommodate the piston rod
Piston seat, the upper end of piston seat forms the rod end chamber for accommodating the piston rod, and piston rod is set with and is threaded onto by spring
In rod end chamber, the top of rod end chamber is covered by cover plate, and the top of piston rod passes cover plate, and the lower end of piston seat forms phase
Mutually vertically through oil inlet and oil-out, check valve is all set in oil inlet and oil-out, described worm drive mechanism is consolidated
Top of the Dingan County loaded on the pump housing, worm drive mechanism is connected driving worm screw rotation, the worm gear and worm screw with the worm screw
Cooperation is positioned at the upper end of the shoe cream room, and described cam is coaxially mounted side by side with worm gear, and described pressure rack one end is hinged
On the described pump housing, the top of the other end and described piston rod contradicts is pressed against, in described cam and described pressure rack
Section all has competing part.
As the supplement to above-mentioned technical proposal and perfect, present invention additionally comprises following technical characteristic.
With section is upwardly extended, extension passes described pump housing top, during extension is at the top of described piston seat
Sky, cavity top installs adjusting rod, and adjusting rod adjusts the pressure rack and realizes Manual quantitative fuel feeding.Turn adjusts manual adjustment rod,
With reference to the ring-type groove in manual adjustment rod, the oil mass needed for regulation, and tightening retaining nuts.
It is spherical in shape that described pressure rack contradicts one end with described piston rod.
Described shoe cream room low level is provided with liquid-level switch, and when oil reserve is less than liquid-level switch position, liquid-level switch sends
Signal control worm drive mechanism is stopped.
Described pump housing top is provided with fuel door, and fuel door is provided with filling strainer, so that impurity screening.
Described worm drive mechanism is reducing motor.
The described pump housing and described piston seat are formed in one structure.
Piston type lubricating pump lubricating system, it is characterized in that, described lubricating system include piston type lubricating pump, pressure gauge and
Multiple separators, the check valve oil-out of piston type lubricating pump is connected by fuel-displaced hydraulic tube with described pressure gauge, pressure gauge
Outlet is connected by multiple-pass joint, hydraulic tube with described separator.The lubricating oil of lubricating pump output, full of the hydraulic pressure in system
Pipe, when lubricating system pressure rise, more than separator check valve startup pressure when, check valve opens oil extraction, and each point immediately
Oily device carries out oil mass distribution by its different flow rate fixed number.When oil pump feed is finished, system hydraulic line pressure is less than metering part
When check valve starts pressure, then part check valve self-resetting is measured, oil discharge passage is closed, to prevent the lubricating oil in bye-pass from falling
Stream.
Described separator quantity is two, and two separators are connected by three-way connection with described pressure gauge.
Described hydraulic tube is nylon tube or metal tube, and described metal tube is by bipyramid cutting ferrule and described double with accommodating
Chase after the cassette fittings body connection locking of cutting ferrule；Described nylon tube connects locking by the cutting ferrule with the conical surface.
Following beneficial effect can be reached using the present invention：The present invention uses mechanical timer, is driven by small synchronous motor
The gear reduction of different short-term training ratios, determines the fuel feeding cycle.Its manual adjustment rod can adjust oil mass, can also be supplied manually during debugging
Oil.It is simple, convenient, reliable.Oil pump can also be needed by user, set low oil level signalling generator.Piston type automatic lubricant pump
By small synchronous motor by internal gear reduction mechanism, geared worm, worm gear, cam and upper frame make the piston gram in pump barrel
Spring force rising is taken, oil storage state is in after oil pump suction.When the cam of pump gradually turns over after top dead center, cam and worm gear point
From the piston in the pump housing is moved downward under spring force, and now in line check valve is closed, and oil outlet one-way valve is opened, pump
Lubricating oil in cylinder starts to be exported from oil-out.The fuel feeding intermittent time of pump is determined by the rotating speed of deceleration synchronization motor, lubricated
The oil drain quantity of pump is by change piston movement Stroke Control.
Brief description of the drawings
Fig. 1 is the structural representation of piston type lubricating pump.
Fig. 2 is worm and gear in pump housing inner structure schematic diagram.
Fig. 3 is piston type lubricating pump lubrication system architecture schematic diagram.
Specific embodiment
Specific embodiment of the invention is described in detail below in conjunction with the accompanying drawings.
Embodiment：As shown in Fig. 1~Fig. 2, piston type lubricating pump includes the pump housing 1, piston rod 9, worm gear 6, worm screw 5, cam
8th, pressure rack 4 and worm drive mechanism 2, the hollow cavity of the pump housing 1 form the shoe cream room of oil storage, are set in shoe cream room and accommodate piston rod 9
Piston seat 3, the upper end of piston seat 3 forms the rod end chamber for accommodating piston rod 9, and piston rod 9 is set with and is installed by spring 10
In rod end chamber, the top of rod end chamber is covered by cover plate, and the top of piston rod 9 passes cover plate, the lower end shape of piston seat 3
Into the oil inlet 12 and oil-out 11 that are mutually perpendicular to insertion, check valve, worm drive are all set in oil inlet 12 and oil-out 11
Mechanism 2 is fixedly installed in the top of the pump housing 1, and worm drive mechanism 2 is connected driving worm screw 5 with worm screw 5 and rotates, worm gear 6 and worm screw 5
Cooperation is positioned at the upper end of shoe cream room, and cam 8 is coaxial with worm gear 6 to be mounted side by side, and the one end of pressure rack 4 is hinged on the pump housing 1, another
End contradicts with the top of piston rod 9 and is pressed against, and the stage casing of cam 8 and pressure rack 4 all has competing part.
Further, the top of piston seat 3 has and upwardly extends section, and extension passes the top of the pump housing 1, during extension is in
Sky, cavity top installs adjusting rod 13, and the regulation of adjusting rod 13 pressure rack 4 realizes Manual quantitative fuel feeding.Turn adjusts manual adjustment rod,
With reference to the ring-type groove in manual adjustment rod, the oil mass needed for regulation, and tightening retaining nuts.
Further, pressure rack 4 is spherical in shape with the conflict of piston rod 9 one end.
Preferably, shoe cream room low level is provided with liquid-level switch, and when oil reserve is less than liquid-level switch position, liquid-level switch sends
Signal control worm drive mechanism 2 is stopped.
Further, pump housing top is provided with fuel door 7, and fuel door 7 is provided with filling strainer, so that impurity screening.
Further, worm drive mechanism 2 is reducing motor.
Further, the pump housing 1 and piston seat 3 are formed in one structure.
As shown in figure 3, piston type lubricating pump lubricating system includes piston type lubricating pump and pressure gauge 14, multiple separators
15, the check valve oil-out of piston type lubricating pump is connected by fuel-displaced hydraulic tube with pressure gauge 14, and the outlet of pressure gauge 14 is by more
Pass joint, hydraulic tube and separator 15 are connected.The lubricating oil of lubricating pump output, full of the hydraulic tube in system, works as lubricating system
Pressure rise, more than separator check valve startup pressure when, check valve opens oil extraction immediately, and each separator is different by its
Flow rate fixed number carries out oil mass distribution.When oil pump feed is finished, system hydraulic line pressure starts pressure less than metering part check valve
When, then part check valve self-resetting is measured, oil discharge passage is closed, to prevent the lubricating oil in bye-pass from flowing backwards.
Further, the quantity of separator 15 is two, and two separators 15 are connected by three-way connection with pressure gauge 14.
Further, hydraulic tube is nylon tube or metal tube, and metal tube chases after card by bipyramid cutting ferrule and with receiving pair
The cassette fittings body connection locking of set；Nylon tube connects locking by the cutting ferrule with the conical surface.
The present invention uses mechanical timer, and the gear reduction of different rapid-result ratios is driven by small synchronous motor, it is determined that for
The oily cycle.Its manual adjustment rod can adjust oil mass, also can manual fuel feeding during debugging.It is simple, convenient, reliable.Oil pump is also
Can be needed by user, low oil level signalling generator is set.Piston type automatic lubricant pump passes through internal gear reduction by small synchronous motor
Mechanism, geared worm, worm gear, cam and upper frame rise the piston overpowers spring force in pump barrel, and oil storage is in after oil pump suction
State.When the cam of pump gradually turns over after top dead center, cam is separated with worm gear, the piston in the pump housing under spring force to
Lower motion, now in line check valve closing, oil outlet one-way valve is opened, and the lubricating oil in pump barrel starts to be exported from oil-out.Pump
The fuel feeding intermittent time determine that the oil drain quantity of lubricating pump is by change piston movement stroke control by the rotating speed of deceleration synchronization motor
System.
General principle of the invention and principal character and advantages of the present invention has been shown and described above.The technology of the industry
Personnel it should be appreciated that the present invention is not limited to the above embodiments, simply explanation described in above-described embodiment and specification this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appending claims and its
Equivalent thereof.
Claims (10)
1. piston type lubricating pump, it is characterised in that：Described piston type lubricating pump includes the pump housing (1), piston rod (9), worm gear
(6), worm screw (5), cam (8), pressure rack (4) and worm drive mechanism (2), the pump housing (1) hollow cavity form the shoe cream room of oil storage,
The piston seat (3) for accommodating the piston rod (9) is set in shoe cream room, and the upper end of piston seat (3) forms and accommodates the piston rod (9)
Rod end chamber, piston rod (9) is set with and is threaded onto in rod end chamber by spring (10), and the top of rod end chamber passes through cover plate
Cover, the top of piston rod (9) passes cover plate, and the lower end formation of piston seat (3) is mutually perpendicular to the oil inlet (12) of insertion and goes out
Check valve is all set in hydraulic fluid port (11), oil inlet (12) and oil-out (11), described worm drive mechanism (2) is fixedly installed in
The top of the pump housing (1), worm drive mechanism (2) is connected driving worm screw (5) rotation, the worm gear (6) with the worm screw (5)
Coordinate the upper end for being positioned at the shoe cream room with worm screw (5), described cam (8) is coaxial with worm gear (6) to be mounted side by side, described
Pressure rack (4) one end be hinged on the described pump housing (1), the other end is contradicted with the top of described piston rod (9) and is pressed against, described
The stage casing of cam (8) and described pressure rack (4) all there is competing part.
2. piston type lubricating pump according to claim 1, it is characterised in that：The top of described piston seat (3) have to
Upper extension, extension passes the described pump housing (1) top, and extension is in hollow, and cavity top installs adjusting rod (13).
3. piston type lubricating pump according to claim 2, it is characterised in that：Described pressure rack (4) and described piston rod
(9) one end is contradicted spherical in shape.
4. piston type lubricating pump according to claim 3, it is characterised in that：Described shoe cream room low level is provided with liquid level and opens
Close.
5. piston type lubricating pump according to claim 4, it is characterised in that：Described pump housing top is provided with fuel door (7),
Fuel door (7) is provided with filling strainer.
6. piston type lubricating pump according to claim 5, it is characterised in that：Described worm drive mechanism (2) is deceleration
Motor.
7. piston type lubricating pump according to claim 6, it is characterised in that：The described pump housing (1) and described piston seat
(3) be formed in one structure.
8. piston type lubricating pump lubricating system, it is characterised in that：Described lubricating system includes piston as claimed in claim 1
Formula lubricating pump and pressure gauge (14), multiple separators (15), the check valve oil-out of piston type lubricating pump pass through fuel-displaced hydraulic tube
It is connected with described pressure gauge (14), pressure gauge (14) outlet is connected by multiple-pass joint, hydraulic tube and described separator (15)
Connect.
9. piston type lubricating pump lubricating system according to claim 8, it is characterised in that：Described separator (15) quantity
It it is two, two separators (15) are connected by three-way connection with described pressure gauge (14).
10. piston type lubricating pump lubricating system according to claim 9, it is characterised in that：Described hydraulic tube is nylon
Pipe or metal tube, described metal tube connect lock by bipyramid cutting ferrule and with double cassette fittings bodies for chasing after cutting ferrule are accommodated
Tightly；Described nylon tube connects locking by the cutting ferrule with the conical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710223328.3A CN106838593A (en) | 2017-04-07 | 2017-04-07 | Piston type lubricating pump and lubricating system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710223328.3A CN106838593A (en) | 2017-04-07 | 2017-04-07 | Piston type lubricating pump and lubricating system thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106838593A true CN106838593A (en) | 2017-06-13 |
Family
ID=59147397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710223328.3A Pending CN106838593A (en) | 2017-04-07 | 2017-04-07 | Piston type lubricating pump and lubricating system thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106838593A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953572A (en) * | 2018-07-31 | 2018-12-07 | 浙江广迈捷智能科技有限公司 | A kind of modified index dial |
| CN109237283A (en) * | 2018-11-14 | 2019-01-18 | 东莞市才立实业有限公司 | A kind of electronic lubricating system |
| CN117300659A (en) * | 2023-11-30 | 2023-12-29 | 综欣工业装备(潍坊)有限公司 | Direct-drive turntable device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2583487Y (en) * | 2002-11-15 | 2003-10-29 | 徐州工程机械集团有限公司徐州工程机械研究所 | Liquid controlled lubricating grease filling pump |
| DE102006040166A1 (en) * | 2006-08-24 | 2008-02-28 | Schumann, Axel, Dipl.-Ing. | Gear unit for high pressure grease gun has drive, particularly electric motor, energized by accumulator of rotational direction and torque, is attached at drive shaft, where high pressure piston press is firmly connected to gear unit |
| CN201858506U (en) * | 2010-11-17 | 2011-06-08 | 重庆长江涂装机械厂 | Lubricating system applied to large-sized mechanical equipment |
| CN202992592U (en) * | 2012-12-17 | 2013-06-12 | 南京贝奇尔机械有限公司 | Centralized lubricating system for engraving machine |
| CN105179907A (en) * | 2015-10-13 | 2015-12-23 | 湖北神鹰润滑设备有限公司 | Oiler |
| CN205877673U (en) * | 2016-06-29 | 2017-01-11 | 中国葛洲坝集团电力有限责任公司 | Single -plunger vacuum oil dripping type oil injector |
-
2017
- 2017-04-07 CN CN201710223328.3A patent/CN106838593A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2583487Y (en) * | 2002-11-15 | 2003-10-29 | 徐州工程机械集团有限公司徐州工程机械研究所 | Liquid controlled lubricating grease filling pump |
| DE102006040166A1 (en) * | 2006-08-24 | 2008-02-28 | Schumann, Axel, Dipl.-Ing. | Gear unit for high pressure grease gun has drive, particularly electric motor, energized by accumulator of rotational direction and torque, is attached at drive shaft, where high pressure piston press is firmly connected to gear unit |
| CN201858506U (en) * | 2010-11-17 | 2011-06-08 | 重庆长江涂装机械厂 | Lubricating system applied to large-sized mechanical equipment |
| CN202992592U (en) * | 2012-12-17 | 2013-06-12 | 南京贝奇尔机械有限公司 | Centralized lubricating system for engraving machine |
| CN105179907A (en) * | 2015-10-13 | 2015-12-23 | 湖北神鹰润滑设备有限公司 | Oiler |
| CN205877673U (en) * | 2016-06-29 | 2017-01-11 | 中国葛洲坝集团电力有限责任公司 | Single -plunger vacuum oil dripping type oil injector |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953572A (en) * | 2018-07-31 | 2018-12-07 | 浙江广迈捷智能科技有限公司 | A kind of modified index dial |
| CN109237283A (en) * | 2018-11-14 | 2019-01-18 | 东莞市才立实业有限公司 | A kind of electronic lubricating system |
| CN117300659A (en) * | 2023-11-30 | 2023-12-29 | 综欣工业装备(潍坊)有限公司 | Direct-drive turntable device |
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Application publication date: 20170613 |
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