CN201973429U - Grease plunger pump - Google Patents
Grease plunger pump Download PDFInfo
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- CN201973429U CN201973429U CN2011200917332U CN201120091733U CN201973429U CN 201973429 U CN201973429 U CN 201973429U CN 2011200917332 U CN2011200917332 U CN 2011200917332U CN 201120091733 U CN201120091733 U CN 201120091733U CN 201973429 U CN201973429 U CN 201973429U
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Abstract
The utility model relates to a grease plunger pump, which comprises a driving device, a grease stirring device and a grease sucking and discharging device. The grease sucking and discharging device consists of a pump body and a swinging device, the pump body comprises a grease cylinder and a plunger movably disposed in an oil cylinder plunger chamber, the swinging device comprises a swinging body capable of axially reciprocating relative to the oil cylinder plunger chamber, a non-working end of the plunger is fixed onto the swinging body, and the plunger synchronously reciprocates in the plunger chamber along with reciprocation of the swinging body to realize grease sucking and discharging. The swinging body is provided with a first through hole which is parallel to a rotary shaft of the driving device, the grease cylinder is provided with a second through hole which is parallel to the rotary shaft of the driving device, the rotary shaft of the driving device penetrates through the first through hole and the second through hole, and the end of the driving device drives the grease stirring device to circumferentially rotate to stir grease. A transfer component disposed between the driving device and the grease stirring device is simplified, the grease plunger pump is more compact and reasonable in structure, energy loss is reduced, the structure of the grease sucking and discharging device is unaffected, and higher grease supply volume of the plunger pump is guaranteed.
Description
Technical field
The invention belongs to lubrication technical field, relate to a kind of lubricant pump, relate in particular to a kind of drier oil plunger pump.
Background technique
Dry oil pump is will lubricate the big lubricant oil of the viscosity of lipid by a kind of pump class in the pump housing injection device in manual or electronic mode, be widely used in the machinery of numerous industries such as coal, chemical industry, building materials, mine, metallurgy, machinery, can satisfy requirements such as above-mentioned machinery lubricating point is concentrated, the oil mass demand is little.
At present domestic drier oil plunger pump comparatively commonly used as shown in Figure 9, comprise driving unit shaft 21, the eccentric shoe 22 that links to each other with driving unit shaft 21, activity is installed in the slide 24 of slide bar 23, place the eccentric shoe 22 in the sliding-groove 25 of slide 24 and be fixed in cylinder body 26 in the plunger pump, in cylinder body 26, be laid with suction oil passage, the end face of cylinder body 26 offers inlet port and oil drain out, the side of cylinder body 26 offers the plunger compartment, suction oil passage is with inlet port, oil drain out and plunger compartment are communicated with, plunger rod is movably placed in the plunger compartment, and its non-operative end is fixed on the slide 24.
Driving unit shaft 1 drives eccentric shoe 22 and does the circumgyration campaign, eccentric shoe 22 makes slide 24 relative cylinder body 26 linear reciprocating motions under the qualification of sliding-groove 25, drive plunger rod and promote piston from the inlet port oil suction, and fuel-displaced by suction oil passage from oil drain out, the work of suction oil circulates.
Realize that the parts that plunger pump stirs oil comprise: the gusset 27 that links to each other with slide 24 ends, be installed on swing arm 28 on the cylinder body 26, the clutch 29 of the interior dress ratchet and pawl arrangement that links to each other with swing arm 28 and link to each other with clutch 29 stir oily device 30.Gusset 27 is linear reciprocating motion under the drive of slide 24, and the end reciprocally swinging that drive swing arm 28 links to each other with clutch 29 also stirs oily device 30 by clutch 29 drivings and makes one-way rotation, constantly drier oil is stirred.
The advantage of this drier oil plunger pump is:
1, design is ingenious, can finish suction, oil extraction process synchronously and stir oily process.
2, volume is little and have a bigger oil drain quantity.Realize suction, oil extraction process owing to adopt eccentric shoe to drive slide mode of linear reciprocating motion on slide bar, make that to be fixed in the active force that the plunger rod on the slide is subjected to consistent with its moving direction, avoid being subjected to radial stress, thereby plunger rod has bigger linear reciprocating motion distance, and plunger pump can obtain bigger oil drain quantity.
But above-mentioned drier oil plunger pump shortcoming is also comparatively obvious, because the driving unit shaft and the transmission part quantity of stirring between the oily device are many, causes the plunger pump complex structure, and consumed power is bigger, also easy-maintaining not when breaking down.
To stir oily number of components many in order to solve dry oil pump, baroque problem, and accompanying drawing 10 discloses another kind of technological scheme, is connected by worm gears between its stirring piece 31 and the motor 32.Particularly, drive worm screw 33 by motor 32 and rotate, worm screw 33 drives the rotation of stirring piece 31 circumference by the worm gear 34 that cooperates with it and realizes stirring oil.As further improvement project, motor 32 can also be put by level and become vertical display, motor 32 rotating shafts directly are connected with stirring piece 31, reduce transferring elements to greatest extent, reduce the consumption of power.
But the shortcoming of this dry oil pump is that owing to adopt the back and forth form of bump plunger 34 of cam 35, the reciprocating stroke distance of plunger 34 is restricted, and the oil pump capacity of dry oil pump is less, can't practical requirement.If increase the oil pump capacity of dry oil pump, then need to increase the offset of cam 35, this will cause plunger 34 to be subjected to bigger radial force, and reduction of service life.Equally, because structural limitations also can't solve the little problem of oil drain quantity in conjunction with disclosed technological scheme among Fig. 1, promptly adopt eccentric shoe to drive slide to-and-fro motion on slide bar, to realize that the relative cylinder body with plunger of plunger rod has the to-and-fro motion of big stroke, realizes suction, oil extraction process.
Summary of the invention
The invention reside in and solve fuel delivery that existing dry oil pump exists can't to meet the demands and stir oily number of components many, complex structure, the problem that consumed power is high provides a kind of at this and can satisfy the fuel delivery requirement, simplifies the drier oil plunger pump that stirs oily parts simultaneously.
For this reason, the technical solution adopted in the present invention is:
A kind of drier oil plunger pump comprises
Drive unit is for described plunger pump oil suction, oil extraction and stir oil power is provided;
Stir oily device, place in the oil-storing barrel and under the drive of described drive unit circumference rotate and realize stirring oil;
Suction oil device comprises the pump housing and oscillator device;
The described pump housing comprises,
Oil cylinder is fixed in the plunger pump, the plunger compartment that its inside offers suction oil passage and is connected with described suction oil passage;
Plunger is movably placed in the described plunger compartment and non-operative end is fixed in described oscillator device;
Described oscillator device comprises,
The swing main body drives the described relatively oil cylinder of described plunger that is fixed thereon and swings synchronously;
Guiding device guides described swing main body to be parallel to the axial direction straight line motion of described plunger compartment;
Force transfering device links to each other with described drive unit, and drives the to-and-fro motion of described swing main body;
Described force transfering device is given described swing main body with the transmission of power of described drive unit, described swing main body is parallel to the described relatively oil cylinder linear reciprocating motion of axial direction of described plunger compartment under the guiding of described guiding device, and drive described plunger to-and-fro motion in described plunger compartment of being fixed on the described swing main body synchronously, realize oil suction and oil extraction process;
Described swing main body offers first through hole that is parallel to described drive unit rotating shaft; Described oil cylinder offers second through hole that is parallel to described drive unit rotating shaft, and the rotating shaft of described drive unit runs through described first through hole and second through hole, and the end drives describedly to be stirred oily device circumference and rotate and realize stirring oil; The length that described first through hole is offered along described swing main body moving direction makes the rotating shaft of described drive unit not interfere the to-and-fro motion of described swing main body.
Described guiding device is the guide rod that the plunger pump inwall is fixed at two ends, described guide rod passes first pilot hole that is opened on the described swing main body, makes described swing main body be parallel to the axial direction of described plunger compartment along described guide rod slip and moving direction.
Described oil cylinder offers second pilot hole that is parallel to described guide rod, described guide rod passes described first pilot hole and described second pilot hole successively, makes described swing main body be parallel to the axial direction of described plunger compartment along described guide rod slip and moving direction.
Described guiding device is the guiding groove that is opened in described swing main body bottom end, described guiding groove offer the axial direction that direction is parallel to described plunger compartment;
Described plunger pump inwall is equiped with the projection that matches with described guiding groove, and described projection activity is inserted in the described guiding groove, and makes the moving direction of described swing main body be parallel to the axial direction of described plunger compartment.
Described force transfering device comprises,
Chute is opened in described swing main body, and two driving sidewalls of chute are perpendicular to the moving direction of described swing main body;
Eccentric wheel is fixedlyed connected with the rotating shaft of described drive unit, and inserts in the described chute and cooperate with two driving sidewalls of described chute;
Described eccentric wheel is under the drive of described drive unit, and eccentric rotary in described chute drives the to-and-fro motion of described swing main body.
Described first through hole runs through described chute and makes the end of described drive unit rotating shaft pass described chute.
Described eccentric wheel is circular eccentric wheel, and described circular eccentric wheel is set with the eccentric wheel cover, and described eccentric wheel cover is installed between the working surface of described eccentric working surface and described chute.
Described eccentric wheel cover is the ring cover, and described ring cover is installed between the working surface of described eccentric working surface and described chute.
Described eccentric wheel cover is square ring set, and the middle part of square ring set offers size and is suitable for the circular hole that described eccentric wheel is inserted; Two operative end surface of described square ring set are inserted in the chute and are driven sidewall with two of chute and cooperate.
The size that described second through hole is offered makes the rotating shaft of described drive unit and described eccentric wheel be suitable for passing from described second through hole when dismounting.
Described second through hole is a waist through hole.
Compared to existing technology, beneficial effect of the present invention is:
1, offers first through hole and second through hole by being parallel to the drive unit rotating shaft at swing main body and oil cylinder respectively, and make the rotating shaft of drive unit run through first through hole and second through hole, the end with stir oily device and link to each other, drive is stirred oily device circumference rotation and is realized stirring oil, simplified drive unit and stirred switching part between the oily device, the plunger pump structure is compact and reasonable more, has reduced the loss of energy, do not influence simultaneously the structure of suction oil device, guarantee that plunger pump has bigger fuel delivery.
2, by adopting guide rod to cooperate the guiding device of pilot hole form, make the moving direction of swing main body can be parallel to the axial direction of plunger compartment, stability is better.
3, by offering chute in the exterior edge face of swing main body, drive unit drives eccentric wheel eccentric rotary in chute, drives the swing main body and is fixed in the plunger to-and-fro motion of swinging on the main body, avoids eccentric wheel to directly act on plunger, make plunger be subjected to radial stress, shorten the working life of plunger.
4, by the size of second through hole is set, make the rotating shaft of drive unit and eccentric wheel when dismounting, be suitable for passing from second through hole, be convenient to the dismounting and the installation of equipment.
Description of drawings
For the easier quilt of content of the present invention is clearly understood, below according to a particular embodiment of the invention and in conjunction with the accompanying drawings, the present invention is further detailed explanation, wherein
Fig. 1 is a drier oil plunger pump structural representation;
Fig. 2 is oil cylinder and the assembling schematic representation of swinging main body;
Fig. 3 is the structural representation of oil cylinder;
Fig. 4 is the structural representation of the oil cylinder second through hole off-centre when being provided with;
Fig. 5 is the structural representation that offers the swing main body of first pilot hole;
Fig. 6 is the structural representation that offers the swing main body of guiding groove;
Fig. 7 is the structural representation of drive unit rotating shaft when being horizontally disposed with;
Fig. 8 is the structural representation of square ring set;
Fig. 9 is existing drier oil plunger pump structural representation;
Figure 10 has improved the plunger pump structural representation that stirs oily parts.
Be labeled as shown in the figure:1-drive unit, 2-stir oily device, 3-oil cylinder, 4-plunger, 5-swings main body, 7-first through hole, 8-second through hole, the 9-guide rod, 10-first pilot hole, 11-second pilot hole, the 12-guiding groove, 13-commutating tooth wheels, 14-chute, the 15-eccentric wheel, 16-eccentric wheel cover, 18-plunger compartment, the 21-driving unit shaft, 22-eccentric shoe, 23-slide bar, the 24-slide, 25-sliding-groove, 26-cylinder body, the 27-gusset, 28-swing arm, 29-clutch, 30-stirs oily device, 31-stirring piece, 32-motor, the 33-worm screw, 34-worm gear, 35-cam.
Embodiment
Embodiment 1
Shown in Fig. 1,2,3 and 5, drier oil plunger pump of the present invention comprises drive unit 1, stirs oily device 2 and suction oil device.Drive unit 1 is for plunger pump oil suction, oil extraction and stir oil power is provided, stir oily device 2 place in the oil-storing barrel and under the drive of drive unit 1 circumference rotate and realize stirring oil, suction oil device is born the oil suction and the oil extraction work of plunger pump, and it comprises the pump housing and oscillator device.
The pump housing comprises oil cylinder 3 and the plunger 4 that is fixed in the plunger pump, be laid with suction oil passage in the oil cylinder 3, the end face of oil cylinder 3 offers inlet port and oil drain out, the side of oil cylinder 3 offers plunger compartment 18, suction oil passage is communicated with inlet port, oil drain out and plunger compartment 18, plunger 4 is movably placed in the plunger compartment 18, and its non-operative end is fixed on the oscillator device.
Oscillator device comprises swing main body 5, guiding device and force transfering device.Swing main body 5 drives plunger 4 to-and-fro motion in plunger compartment 18 that is fixed thereon and realizes oil suction and oil extraction process.Swing main body 5 offers first through hole 7 that is parallel to drive unit 1 rotating shaft, oil cylinder 3 offers second through hole 8 that is parallel to drive unit 1 rotating shaft, the rotating shaft of drive unit 1 runs through first through hole 7 and second through hole 8, and the end drive is stirred oily device 2 circumference rotation and realized stirring oil.The length that first through hole 7 is offered along swing main body 5 moving direction makes the rotating shaft of drive unit 1 not interfere the to-and-fro motion of swinging main body 5.Guiding device is the guide rod 9 that the plunger pump inwall is fixed at two ends, guide rod 9 passes first pilot hole 10 that is opened on the swing main body 5, oil cylinder 3 offers second pilot hole 11 that is parallel to guide rod 9, guide rod 9 passes first pilot hole 10 and second pilot hole 11 successively, makes swing main body 5 be parallel to the axial direction of plunger compartment 18 along guide rod 9 slips and moving direction.Force transfering device comprises chute 14 that is opened in swing main body 5 and the eccentric wheel 15 of fixedlying connected with the rotating shaft of drive unit 1, two of chute 14 drives the moving direction of sidewall perpendicular to swing main body 5, and eccentric wheel 15 is inserted in the chute 14 and driven sidewall with two of chute 14 and cooperates.First through hole 7 runs through chute 14 and makes the end of drive unit 1 rotating shaft pass chute 14.Eccentric wheel 15 is circular eccentric wheel, and circular eccentric wheel is set with eccentric wheel cover 16, and this eccentric wheel cover 16 is the ring cover, and this ring cover is installed between the working surface of the working surface of eccentric wheel 15 and chute 14, helps to protect eccentric wheel 15, reduces wear.
During work, second through hole 8 that is opened in oil cylinder 3 and first through hole 7 that is opened in swing main body 5 are passed in the rotating shaft of drive unit 1 successively, the end with stir oily device 2 and link to each other and drives and stir oily device 2 continuous stirring drier oil in oil-storing barrel.The eccentric wheel 15 that is fixed in drive unit 1 rotating shaft acts on two of chute 14 and drives sidewall, drive 5 to-and-fro motion of swing main body, swing main body 5 keeps moving direction to be parallel to the axial direction of plunger compartment 18 under the guiding of guide rod 9, and makes plunger 4 to-and-fro motion in plunger compartment 18 of being fixed on the swing main body 5 realize oil suction and oil extraction.
In the present embodiment, swing main body 5 is arranged at the top of oil cylinder 3, and second through hole 8 that is opened in oil cylinder 3 and first through hole 7 that is opened in swing main body 5 are passed in the rotating shaft of drive unit 1 successively, the end with stir oily device 2 and link to each other.As equal substitute mode, also swing main body 5 can be arranged at the below of oil cylinder 3, first through hole 7 that is opened in swing main body 5 and second through hole 8 that is opened in oil cylinder 3 are passed in the rotating shaft of drive unit 1 successively, the end with stir oily device 2 and link to each other and drives and stir oily device 2 continuous stirring drier oil in oil-storing barrel.
In conjunction with shown in Figure 7, present embodiment and embodiment's 1 difference is that drive unit 1 is horizontal positioned, and the rotating shaft of drive unit 1 is vertical with the rotatingshaft that stirs oily device 2.First through hole 7 that is opened in swing main body 5 and second through hole 8 that is opened in oil cylinder 3 are passed in the rotating shaft of drive unit 1, the end by commutating tooth wheels 13 with stir oily device 2 and link to each other and drives and stir oily device 2 continuous stirring drier oil in oil-storing barrel.Can realize gearing down by the gear ratio that engaging gear in the commutating tooth wheels is set, make and stir speed oil and be slower than the pump speed oil, effectively reduce the generation of stirring bubble in the oily process.
In the present embodiment, drive unit, suction oil device are easier to and stir oily device and oil-storing barrel isolation of components or combination when the equipment dismounting, greatly facilitate dismounting and assembling, have reduced maintenance cost.In addition, the commutating tooth wheels also can be changed into Worm and Worm Gear Driving.
In conjunction with shown in Figure 3, present embodiment and embodiment's 1 difference is that second through hole 8 that oil cylinder 3 is offered is waist through hole, when the size of this waist through hole makes the equipment installation and removal, the rotating shaft of drive unit 1 and eccentric wheel 15 can pass from second through hole 8 as a whole easily, have simplified equipment effectively and have installed and unloading process.Perhaps as shown in Figure 4, second through hole 8 also can be set to eccentric through-hole, the area of through hole is offered in minimizing on oil cylinder 3, when the rotating shaft of drive unit 1 and eccentric wheel 15 are being in when overlapping with the eccentric through-hole scope, the rotating shaft of drive unit 1 and eccentric wheel 15 can pass from second through hole 8 as a whole easily.
In conjunction with shown in Figure 6, present embodiment and embodiment's 1 difference is that described guiding device is the guiding groove 12 that is opened in described swing main body 5 bottom ends, described guiding groove 12 offer the axial direction that direction is parallel to described plunger compartment 18; Described plunger pump inwall is equiped with the projection (not shown) that matches with described guiding groove 12, and described projection activity is inserted in the described guiding groove 12.
During work, force transfering device drives described swing main body 5 to-and-fro motion, and the guiding groove 12 that is opened in described swing main body 5 bottom ends makes the moving direction of described swing main body 5 be parallel to the axial direction of described plunger compartment 18 under the qualification of described projection.
In conjunction with shown in Figure 8, present embodiment and embodiment's 1 difference is, eccentric wheel cover 16 is square ring set, and two operative end surface of this square ring set are inserted in the chute 14 and driven sidewall with two of chute 14 and cooperate, and the middle part of square ring set offers size and is suitable for the circular hole that eccentric wheel 15 is inserted.During work, eccentric wheel 15 is eccentric rotary in the circular hole of square ring set, and drives square ring set along chute 14 slips, drives 5 to-and-fro motion of swing main body with this.
Obviously, the foregoing description only is for example clearly is described, and is not the qualification to mode of execution.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all mode of executions.And conspicuous variation of being extended out thus or change still are among the protection domain of the invention.
Claims (10)
1. a drier oil plunger pump comprises
Drive unit is for described plunger pump oil suction, oil extraction and stir oil power is provided;
Stir oily device, place in the oil-storing barrel and under the drive of described drive unit circumference rotate and realize stirring oil;
Suction oil device comprises the pump housing and oscillator device;
The described pump housing comprises,
Oil cylinder is fixed in the plunger pump, the plunger compartment that its inside offers suction oil passage and is connected with described suction oil passage;
Plunger is movably placed in the described plunger compartment and non-operative end is fixed in described oscillator device;
Described oscillator device comprises,
The swing main body drives the described relatively oil cylinder of described plunger that is fixed thereon and swings synchronously;
Guiding device guides described swing main body to be parallel to the axial direction straight line motion of described plunger compartment;
Force transfering device links to each other with described drive unit, and drives the to-and-fro motion of described swing main body;
Described force transfering device is given described swing main body with the transmission of power of described drive unit, described swing main body is parallel to the described relatively oil cylinder linear reciprocating motion of axial direction of described plunger compartment under the guiding of described guiding device, and drive described plunger to-and-fro motion in described plunger compartment of being fixed on the described swing main body synchronously, realize oil suction and oil extraction process;
It is characterized in that:
Described swing main body offers first through hole that is parallel to described drive unit rotating shaft; Described oil cylinder offers second through hole that is parallel to described drive unit rotating shaft, and the rotating shaft of described drive unit runs through described first through hole and second through hole, and the end drives describedly to be stirred oily device circumference and rotate and realize stirring oil; The length that described first through hole is offered along described swing main body moving direction makes the rotating shaft of described drive unit not interfere the to-and-fro motion of described swing main body.
2. drier oil plunger pump according to claim 1 is characterized in that:
Described guiding device is the guide rod that the plunger pump inwall is fixed at two ends, described guide rod passes first pilot hole that is opened on the described swing main body, makes described swing main body be parallel to the axial direction of described plunger compartment along described guide rod slip and moving direction.
3. drier oil plunger pump according to claim 2 is characterized in that:
Described oil cylinder offers second pilot hole that is parallel to described guide rod, described guide rod passes described first pilot hole and described second pilot hole successively, makes described swing main body be parallel to the axial direction of described plunger compartment along described guide rod slip and moving direction.
4. drier oil plunger pump according to claim 1 is characterized in that:
Described guiding device is the guiding groove that is opened in described swing main body bottom end, described guiding groove offer the axial direction that direction is parallel to described plunger compartment;
Described plunger pump inwall is equiped with the projection that matches with described guiding groove, and described projection activity is inserted in the described guiding groove, and makes the moving direction of described swing main body be parallel to the axial direction of described plunger compartment.
5. drier oil plunger pump according to claim 1 is characterized in that:
Described force transfering device comprises,
Chute is opened in described swing main body, and two driving sidewalls of chute are perpendicular to the moving direction of described swing main body;
Eccentric wheel is fixedlyed connected with the rotating shaft of described drive unit, and inserts in the described chute and cooperate with two driving sidewalls of described chute;
Described eccentric wheel is under the drive of described drive unit, and eccentric rotary in described chute drives the to-and-fro motion of described swing main body;
Described first through hole runs through described chute and makes the end of described drive unit rotating shaft pass described chute.
6. drier oil plunger pump according to claim 5 is characterized in that:
Described eccentric wheel is circular eccentric wheel, and described circular eccentric wheel is set with the eccentric wheel cover, and described eccentric wheel cover is installed between the working surface of described eccentric working surface and described chute.
7. drier oil plunger pump according to claim 6 is characterized in that:
Described eccentric wheel cover is the ring cover, and described ring cover is installed between the working surface of described eccentric working surface and described chute.
8. drier oil plunger pump according to claim 6 is characterized in that:
Described eccentric wheel cover is square ring set, and the middle part of square ring set offers size and is suitable for the circular hole that described eccentric wheel is inserted; Two operative end surface of described square ring set are inserted in the chute and are driven sidewall with two of chute and cooperate.
9. according to the arbitrary described drier oil plunger pump of claim 1 to 6, it is characterized in that:
The size that described second through hole is offered makes the rotating shaft of described drive unit and described eccentric wheel be suitable for passing from described second through hole when dismounting.
10. drier oil plunger pump according to claim 7 is characterized in that:
Described second through hole is a waist through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200917332U CN201973429U (en) | 2011-03-31 | 2011-03-31 | Grease plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200917332U CN201973429U (en) | 2011-03-31 | 2011-03-31 | Grease plunger pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201973429U true CN201973429U (en) | 2011-09-14 |
Family
ID=44578531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200917332U Expired - Lifetime CN201973429U (en) | 2011-03-31 | 2011-03-31 | Grease plunger pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN201973429U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102135229A (en) * | 2011-03-31 | 2011-07-27 | 北京中冶华润科技发展有限公司 | Grease plunger pump |
| CN112253978A (en) * | 2020-11-27 | 2021-01-22 | 青岛盘古智能制造股份有限公司 | Lubricant supplying device for double-line centralized lubricating system |
-
2011
- 2011-03-31 CN CN2011200917332U patent/CN201973429U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102135229A (en) * | 2011-03-31 | 2011-07-27 | 北京中冶华润科技发展有限公司 | Grease plunger pump |
| CN112253978A (en) * | 2020-11-27 | 2021-01-22 | 青岛盘古智能制造股份有限公司 | Lubricant supplying device for double-line centralized lubricating system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110914 Effective date of abandoning: 20131106 |
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| RGAV | Abandon patent right to avoid regrant |