CN204901299U - Hydrodynamic lubrication fat pump - Google Patents

Hydrodynamic lubrication fat pump Download PDF

Info

Publication number
CN204901299U
CN204901299U CN201520267261.XU CN201520267261U CN204901299U CN 204901299 U CN204901299 U CN 204901299U CN 201520267261 U CN201520267261 U CN 201520267261U CN 204901299 U CN204901299 U CN 204901299U
Authority
CN
China
Prior art keywords
hydraulic
lubricating grease
grease
piston
plunger
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
Application number
CN201520267261.XU
Other languages
Chinese (zh)
Inventor
王平忠
王云柯
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201520267261.XU priority Critical patent/CN204901299U/en
Application granted granted Critical
Publication of CN204901299U publication Critical patent/CN204901299U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Reciprocating Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

The utility model relates to a hydrodynamic lubrication fat pump: be applicable to various hydraulic pressure engineering machinery, used lubricating grease when not changing the lubricating grease continuation with former normal atmospheric temperature under cold temperature. Two piston hydro -cylinder volumes vary in the pump, simultaneously with same flow, make the operation of two pistons breast the tape for two piston hydro -cylinders with pressure input hydraulic pump pressure oil to produce big piston and arrive than valve piston time expand, liposuction mouth switch is fast, the plunger has the time expand liposuction and presses fat at the plunger intracavity, receives electronics circulation time control on -off control solenoid valve switch, corresponds simultaneously to do to two pistons and relapses continuous liposuction or press fat to move. Laying hydrodynamic lubrication fat pump in the container on the lubricating grease face, installing and heat up at the other lubricating grease that makes of same machine hydraulic pump, electron circulation time switch and the lower temperature of the solenoid valve same machine of installation department correspond even solenoid valve and each pipe joints of hydrodynamic lubrication fat pump with high pressure hose, with satisfying the notes fat rifle that arrives the manual electronic switch of high pressure hose connection of the corresponding length of the longest lubrication points on the same machine.

Description

Hudrodynamic lubrication fat pump
Technical field
The utility model belongs to field of tool, is applicable to various hydraulic construction machine.Grease up under the cold temperature of particularly suitable.
Background technique
Existing hydraulic construction machine uses the grease pump of lubrication, have manually and foot-propelled, steam-operating and electronic, because a splendid attire lubricating grease amount is little manually, foot-propelled grease pump uses inconvenient, and hydraulic construction machine majority does not have aerodynamic force, and power is little to be again furnished with driven lubricating grease pump.And grease absorbing port does not have bottom valve, grease absorbing port is located at liposuction chamber 1/3rd place more, and just generation liposuction is more difficult.Because lubricating grease produces the more difficult inspiration lubricating grease of density increase at low temperatures.So the grease pump be now furnished with can not meet the hydraulic construction machine lubrication worked under cold temperature.The grease pump shop instructions of existing market sap pressure supply engineering machinery are each labeled as below 9 DEG C, please change lower trade mark lubricating grease.Current research invention is exactly that solution can meet hydraulic construction machine must not change lubricating grease under cold temperature, and same trade mark lubricating grease used when continuing to use former normal temperature.
Summary of the invention
The purpose of this utility model is a kind of Hudrodynamic lubrication fat pump with bottom valve of design.Still can note the lubricating grease into using the same trade mark under former normal temperature at low temperatures fast.
Technical solutions of the utility model are achieved in that and comprise electromagnetic valve switch, Low-voltage Electronic circulation time switch, the lubricating grease pump housing, little hydraulic piston oil cylinder, tubaeform grease absorbing port, plunger liposuction chamber, high pressure grease outlet, connecting tube, steel ball, spring, base plate, dust cover, high pressure hose, the grease gun of manual electronic switch, lubricating grease container, and the hydraulic cylinder piston in aforesaid little hydraulic piston oil cylinder and suction refer to that chamber bottom valve switch is in aggregates, hydraulic cylinder piston in large hydraulic piston oil cylinder and lubrication refer to that plunger is in aggregates, hydraulic oil pipe A and large hydraulic jack joint and the intercommunication of little hydraulic jack joint, hydraulic oil pipe B and little hydraulic jack joint, large hydraulic jack joint intercommunication, the little hydraulic piston oil cylinder that two size volume does not wait, large hydraulic piston oil cylinder is in the same lubricating grease pump housing, by prexxure of the hydraulic pump oil input electromagnetic valve switch by Low-voltage Electronic circulation time control switch control rule, be communicated with hydraulic oil pipe B and be input to little hydraulic piston oil cylinder and large hydraulic piston oil cylinder through little hydraulic jack joint and large hydraulic jack joint, hydraulic cylinder piston and liposuction chamber bottom valve switch and hydraulic cylinder piston and lubricating grease plunger are run simultaneously, hydraulic cylinder piston and liposuction chamber bottom valve switch run to terminal and open horn shape grease absorbing port completely, hydraulic cylinder piston and lubricating grease plunger inhale lubricating grease to plunger liposuction chamber, steel ball, spring closes high pressure grease outlet by the suction of hydraulic cylinder piston and lubricating grease plunger, by the time plunger liposuction chamber is filled rear hydraulic cylinder piston and lubricating grease plunger also arrives terminal, Low-voltage Electronic circulation time switch is through adjusting liposuction and pressure fat Controlling solenoid valve interval time switch, make fuel tank be communicated with hydraulic oil pipe B simultaneously, prexxure of the hydraulic pump oil input hydraulic pressure oil pipe A inputs into little hydraulic piston oil cylinder and large hydraulic piston oil cylinder through large hydraulic jack joint and little hydraulic jack joint, hydraulic cylinder piston and suction refer to chamber bottom valve switch and hydraulic cylinder piston and lubricating grease plunger inverted running simultaneously, hydraulic cylinder piston and suction refer to that chamber bottom valve switch cuts out tubaeform grease absorbing port completely, lubricating grease in hydraulic cylinder piston and lubricating grease sliding cylinder extrusion plunger liposuction chamber pushes steel ball open through high pressure grease outlet, spring connects high pressure hose through connecting tube, height compresses into the grease gun of manual electronic switch.
Also have, little hydraulic piston oil cylinder and large hydraulic piston oil cylinder have difference in volume, at same flow, same to pressure, make hydraulic cylinder piston and liposuction chamber bottom valve switch open tubaeform grease absorbing port to terminal to this two oil cylinders incoming pressure oil simultaneously and wait for hydraulic cylinder piston and lubricating grease plunger, it is poor if having time to run in same direction, provides good condition to liposuction and pressure fat.
Also have, when hydraulic cylinder piston and the tubaeform grease absorbing port of liposuction chamber bottom valve switch open, hydraulic cylinder piston and lubricating grease plunger is driven to inhale lubricating grease in plunger liposuction chamber, when tubaeform grease absorbing port closed by hydraulic cylinder piston and liposuction chamber bottom valve switch, drive hydraulic cylinder piston and lubricating grease plunger high extrusion lubricating grease in plunger liposuction chamber.
Also have, Hudrodynamic lubrication fat pump is connected with the equal-sized base plate of lubricating grease container, be placed in and fill in the vessel faces of lubricating grease, dust cover respectively correspondence is placed on Hudrodynamic lubrication fat pump, after be fixed on lubricating grease container, the high pressure hose of lubricating grease container and manual electronic switch grease gun and conveying high-pressure lubricating grease will be housed, all be arranged on uniform machinery oil hydraulic pump side, raise grease temperature by means of hydraulic pump works temperature, temperature can be arranged on uniform machinery compared with the position at the end to electromagnetic valve switch and Low-voltage Electronic circulation time switch.
Also have, Low-voltage Electronic circulation time switch, through adjusting liposuction and pressure fat Controlling solenoid valve interval time switch, hydraulic cylinder piston and liposuction chamber bottom valve switch, hydraulic cylinder piston and lubricating grease plunger being run repeatedly continuously, constantly does suction lubricating grease and extrude lubricating grease with high.
The utility model, with two unequal hydraulic jacks of volume size, the plunger of piston driving grease pump in large hydraulic jack, plunger inhales lubricating grease and high extrusion lubricating grease in plunger cavity, piston driving plunger liposuction chamber bottom valve switch in little hydraulic jack.Hydraulic oil is straight through equal in two oil cylinders inputs and 4 oil hydraulic cylinder joints refluxing out.Spring and steel ball is had, Low-voltage Electronic circulation time switch, electromagnetic valve switch, base plate, dust cover, balance and stability sleeve pipe, the grease gun of the manual electronic switch of band high pressure hose, the container of splendid attire lubricating grease in high pressure grease outlet switch.
The hydraulic jack that described two size volumes do not wait, directly just same flow can be realized through equal in hydraulic jack adaptor tube, same hydraulic pressure, input to two hydraulic jacks simultaneously, in little hydraulic jack, piston arrives first terminal than piston in large hydraulic jack, and two pistons have time delay to the free poor generation of terminal.Utilize the piston driving bottom valve switch of little volume hydraulic jack first to reach home and open grease absorbing port completely, now in large hydraulic jack, piston driving lubricating grease plunger is subject to continue liposuction between time delay, add suction lubricating grease mouth and manufacture and design flue, spring in high pressure grease outlet and steel ball close high pressure grease outlet by plunger suction spring elongates steel ball, realize liposuction smooth.These two hydraulic jacks are by Low-voltage Electronic circulation time control switch control rule electromagnetic valve switch, make the piston reverse direction operation simultaneously of two hydraulic jacks, in little hydraulic jack, piston driving plunger liposuction chamber bottom valve switch cuts out grease absorbing port rapidly, simultaneously in large hydraulic jack, piston promotes sliding cylinder extrusion lubricating grease, high-pressure grease Compress Spring and back down steel ball and open high pressure grease outlet.Between time delay, high extrusion lubricating grease is to manual electronic switch grease gun.Low-voltage Electronic circulation time switch inhales lubricating grease and high-pressure grease Controlling solenoid valve interval time switch through adjusting, and piston in these two hydraulic jacks is moved repeatedly continuously, constantly high-pressure grease is inputted the grease gun of manual electronic switch.
Described in cold climates without the need to changing lubricating grease trade mark standard, and inject the required lubricating grease used of machine sections fast.That above-mentioned Hudrodynamic lubrication fat pump is connected with the equal-sized base plate of container, being placed in lubricating grease container fills above lubricating grease, with the balance and stability sleeve pipe on dust cover respectively correspondence to be enclosed within grease pump and lubricating grease container each position is connected and fixed, all be arranged on uniform machinery oil hydraulic pump side with the grease gun of manual electronic switch and the high pressure hose of conveying high-pressure lubricating grease, produce temperature by hydraulic pump works and raise grease temperature.And electromagnetic valve switch and Low-voltage Electronic circulation time switch to be not suitable for temperature high, the place that uniform machinery temperature is lower can be arranged on, be communicated with solenoid valve and each oil connection of Hudrodynamic lubrication fat pump by high pressure hose correspondence.The grease gun of grease pump grease outlet and manual electronic switch is communicated with the high pressure hose meeting the corresponding length of the longest lubricating point on uniform machinery.Such grease temperature raise Hudrodynamic lubrication fat pump and lubricating grease container motionless, the grease gun of the manual electronic switch of a moving belt high pressure hose, does not change the lubricating grease trade mark under just realizing cold climate, notes each lubrication place on same construction machine smoothly.
Accompanying drawing explanation
Fig. 1 is Hudrodynamic lubrication fat pump inspiration lubricating grease schematic diagram;
Fig. 2 is that Hudrodynamic lubrication fat pump pressure goes out lubricating grease schematic diagram.
In figure: the grease gun 28-set screw 29-high pressure hose 30-electronic switch button of 1-hydraulic oil pipe A2-large hydraulic jack joint 3-little hydraulic jack joint 4-hydraulic oil pipe B5-little hydraulic jack joint 6-large hydraulic jack joint 7-hydraulic cylinder piston and liposuction chamber bottom valve switch 8-hydraulic cylinder piston and the manual electronic switch of lubricating grease plunger 9-little hydraulic piston oil cylinder 10-large hydraulic piston oil cylinder 11-tubaeform grease absorbing port 12-plunger liposuction chamber 13-high pressure grease outlet 14-connecting tube 15-lubricating grease pump housing 16-base plate 17-lubricating grease container 18-lubricating grease 19-electromagnetic valve switch 20-Low-voltage Electronic circulation time switch 21-oil hydraulic pump 22-fuel tank 23-spring 24-steel ball 25-dust cover 26-balance and stability sleeve pipe 27-.
Embodiment
Below in conjunction with accompanying drawing, the utility model embodiment is described in further detail.
Concrete enforcement one:
With reference to Fig. 1, Fig. 2, connect with the equal base plate 16 of the mouth plane sizes of lubricating grease container 17 bottom the lubricating grease pump housing 15, be placed in and fill on 17, lubricating grease container, with the balance and stability sleeve pipe 26 of dust cover 25 li respectively correspondence put on hydraulic oil pipe A1 and hydraulic oil pipe B4 and connecting tube 14, dust cover 25 is connected on lubricating grease container 17, oil hydraulic pump 21 side is arranged on after tightening set screw 28, also oil hydraulic pump 21 side of uniform machinery is placed in the grease gun 27 that high pressure hose 29 is communicated with connecting tube 14 and manual electronic switch, the temperature produced by oil hydraulic pump 21 work raises grease temperature.The lower position of temperature on uniform machinery is arranged on to electromagnetic valve switch 19 and Low-voltage Electronic circulation time switch 20, connect Low-voltage Electronic circulation time switch 20 and high pressure hose 19 and electronic switch button 30 circuit respectively, oil hydraulic pump 21 and electromagnetic valve switch 19 is communicated with high pressure hose 29, be communicated with solenoid valve sky respectively with high pressure hose 29 and close 19 and hydraulic oil pipe A1, electromagnetic valve switch 19 and hydraulic oil pipe B4.
Concrete enforcement two:
Oil hydraulic pump 21 through high pressure hose 29 input hydraulic pressure power oil to electromagnetic valve switch 19, adjust Low-voltage Electronic circulation time switch 20 and inhale lubricating grease 18 and pressure grease 18 interval time, power supply is opened to Low-voltage Electronic circulation time switch 20 through electronic switch button 30, control makes hydraulic power oil input feed liquor pressuring oil pipe B4, hydraulic oil pipe B4 is diverted to little hydraulic jack joint 5 and large hydraulic jack connects 6, enter little hydraulic piston oil cylinder 9 by little hydraulic jack joint 5 and promote hydraulic cylinder piston and liposuction chamber bottom valve switch 7, enter large hydraulic piston oil cylinder 10 by large hydraulic jack joint 6 and promote hydraulic cylinder piston and lubricating grease plunger 8, make hydraulic cylinder piston and liposuction chamber bottom valve switch 7 as shown in Figure 1, tubaeform grease absorbing port 11 is opened to moving to left, make hydraulic cylinder piston and lubricating grease plunger 8 as shown in Figure 1 to up, suction simultaneously by hydraulic cylinder piston and lubricating grease plunger 8 makes spring 23 extend, steel ball 24 cuts out high pressure grease outlet 13, lubricating grease 18 is through horn shape grease absorbing port 11 inspiration plunger liposuction chamber 12.Electromagnetic valve switch 19 controls to produce backflow to little hydraulic piston oil cylinder 9 and large hydraulic piston oil cylinder 10 by Low-voltage Electronic circulation time switch 20, by little hydraulic jack joint 5 and large hydraulic jack joint 6 through hydraulic oil pipe B4 and electromagnetic valve switch 19, fuel tank 22 is back to by high pressure hose 29, Low-voltage Electronic circulation time switch 20 simultaneously, Controlling solenoid valve switch 19, make the hydraulic power oil input feed liquor pressuring oil pipe A1 of oil hydraulic pump 21, the equal large hydraulic jack joint 2 of Guan Zhijing in hydraulic jack joint and little hydraulic jack joint 3 is diverted to through hydraulic oil pipe A1, enter into little hydraulic piston oil cylinder 9 by little hydraulic jack joint 3 and promote hydraulic cylinder piston and liposuction chamber bottom valve switch 7 is moved to the left as shown in Figure 2, close tubaeform grease absorbing port 11, enter into large hydraulic piston oil cylinder 10 by large hydraulic jack joint 2 and promote hydraulic cylinder piston and lubricating grease plunger 8 as shown in Figure 2 to descending, now shrink by the pressure spring 23 from hydraulic cylinder piston and lubricating grease plunger 8, high pressure grease outlet 13 opened by steel ball 24, hydraulic cylinder piston and lubricating grease plunger 8 continue the lubricating grease 18 in extruding 12 li, plunger liposuction chamber to high pressure grease outlet 13, the grease gun 27 of manual electronic switch is entered into through connecting tube 14 and high pressure hose 29.19 are closed with Low-voltage Electronic circulation time switch 20 Controlling solenoid valve sky, to little hydraulic piston oil cylinder 9 and large hydraulic piston oil cylinder 10 do repeatedly continuously as shown in Figure 1, Figure 2 in motion, just smoothly lubricating grease high input voltage grease gun 27. electronic switch button 30 pairs of Low-voltage Electronic circulation time switch 20 to manual electronic switch can be closed, make electromagnetic valve switch 19 close stop solution pressure grease pump work.

Claims (5)

1. a Hudrodynamic lubrication fat pump, comprise electromagnetic valve switch (19), Low-voltage Electronic circulation time switch (20), the lubricating grease pump housing (15), little hydraulic piston oil cylinder (9), tubaeform grease absorbing port (11), plunger liposuction chamber (12), high pressure grease outlet (13), connecting tube (14), steel ball (24), spring (23), base plate (16), dust cover (25), high pressure hose (29), the grease gun (27) of manual electronic switch, lubricating grease container (17), the hydraulic cylinder piston that aforesaid little hydraulic piston oil cylinder (9) is inner and suction refer to that chamber bottom valve switch (7) is in aggregates, the hydraulic cylinder piston that large hydraulic piston oil cylinder (10) is inner and lubrication refer to that plunger (8) is in aggregates, hydraulic oil pipe A (1) and large hydraulic jack joint (2) and little hydraulic jack joint (3) intercommunication, hydraulic oil pipe B (4) and little hydraulic jack joint (5), large hydraulic jack joint (6) intercommunication, it is characterized in that the little hydraulic piston oil cylinder (9) that two size volumes do not wait, large hydraulic piston oil cylinder (10) is inner the same lubricating grease pump housing (15), input electromagnetic valve switch (19) by oil hydraulic pump (21) pressure oil to control by Low-voltage Electronic circulation time switch (20), be communicated with hydraulic oil pipe B (4) and be input to little hydraulic piston oil cylinder (9) and large hydraulic piston oil cylinder (10) through little hydraulic jack joint (5) and large hydraulic jack joint (6), hydraulic cylinder piston and liposuction chamber bottom valve switch (7) and hydraulic cylinder piston and lubricating grease plunger (8) are run simultaneously, hydraulic cylinder piston and liposuction chamber bottom valve switch (7) run to terminal and open horn shape grease absorbing port (11) completely, hydraulic cylinder piston and lubricating grease plunger (8) inhale lubricating grease to plunger liposuction chamber (12), steel ball (24), spring (23) closes high pressure grease outlet (13) by the suction of hydraulic cylinder piston and lubricating grease plunger (8), by the time plunger liposuction chamber (12) is filled rear hydraulic cylinder piston and lubricating grease plunger (8) also arrives terminal, Low-voltage Electronic circulation time switch (20) is through adjusting liposuction and pressure fat Controlling solenoid valve interval time switch (19), make fuel tank be communicated with hydraulic oil pipe B (4) simultaneously, prexxure of the hydraulic pump oil input hydraulic pressure oil pipe A (1) inputs into little hydraulic piston oil cylinder (9) and large hydraulic piston oil cylinder (10) through large hydraulic jack joint (2) and little hydraulic jack joint (3), hydraulic cylinder piston and suction refer to chamber bottom valve switch (7) and hydraulic cylinder piston and lubricating grease plunger (8) inverted running simultaneously, hydraulic cylinder piston and suction refer to that tubaeform grease absorbing port (11) is closed in chamber bottom valve switch (7) completely, the lubricating grease of hydraulic cylinder piston and lubricating grease plunger (8) extruding plunger liposuction chamber (12) pushes steel ball (24) open through high pressure grease outlet (13), spring (23) connects high pressure hose (29) through connecting tube (14), height compresses into the grease gun (27) of manual electronic switch.
2. a kind of Hudrodynamic lubrication fat pump according to claim 1, it is characterized in that little hydraulic piston oil cylinder (9) and large hydraulic piston oil cylinder (10) have difference in volume, at same flow, same to pressure, make hydraulic cylinder piston and liposuction chamber bottom valve switch (7) open tubaeform grease absorbing port (11) to terminal to this two oil cylinders incoming pressure oil simultaneously and wait for hydraulic cylinder piston and lubricating grease plunger (8), it is poor if having time to run in same direction, provides good condition to liposuction and pressure fat.
3. a kind of Hudrodynamic lubrication fat pump according to claim 1, when it is characterized in that tubaeform grease absorbing port (11) are opened in hydraulic cylinder piston and liposuction chamber bottom valve switch (7), hydraulic cylinder piston and lubricating grease plunger (8) is driven to inhale lubricating grease plunger liposuction chamber (12) is inner, when tubaeform grease absorbing port (11) are closed in hydraulic cylinder piston and liposuction chamber bottom valve switch (7), inner height extrudes lubricating grease in plunger liposuction chamber (12) to drive hydraulic cylinder piston and lubricating grease plunger (8).
4. a kind of Hudrodynamic lubrication fat pump according to claim 1, Hudrodynamic lubrication fat pump is it is characterized in that to connect with the equal-sized base plate of lubricating grease container (16), be placed in fill lubricating grease container (17) face on, dust cover (25) respectively correspondence is placed on Hudrodynamic lubrication fat pump, after be fixed on lubricating grease container (17), the high pressure hose (29) of lubricating grease container (17) and manual electronic switch grease gun (27) and conveying high-pressure lubricating grease will be housed, all be arranged on uniform machinery oil hydraulic pump (21) side, grease temperature is raised by means of hydraulic pump works temperature, temperature can be arranged on uniform machinery compared with the position at the end to electromagnetic valve switch (19) and Low-voltage Electronic circulation time switch (20).
5. a kind of Hudrodynamic lubrication fat pump according to claim 1, it is characterized in that Low-voltage Electronic circulation time switch (20), through adjusting liposuction and pressure fat Controlling solenoid valve interval time switch (19), hydraulic cylinder piston and liposuction chamber bottom valve switch (7), hydraulic cylinder piston and lubricating grease plunger (8) are run repeatedly continuously, constantly does and inhale lubricating grease and high extrusion lubricating grease.
CN201520267261.XU 2015-04-25 2015-04-25 Hydrodynamic lubrication fat pump Expired - Fee Related CN204901299U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520267261.XU CN204901299U (en) 2015-04-25 2015-04-25 Hydrodynamic lubrication fat pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520267261.XU CN204901299U (en) 2015-04-25 2015-04-25 Hydrodynamic lubrication fat pump

Publications (1)

Publication Number Publication Date
CN204901299U true CN204901299U (en) 2015-12-23

Family

ID=54923473

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520267261.XU Expired - Fee Related CN204901299U (en) 2015-04-25 2015-04-25 Hydrodynamic lubrication fat pump

Country Status (1)

Country Link
CN (1) CN204901299U (en)

Similar Documents

Publication Publication Date Title
CN202040038U (en) Double-acting hydraulic driving reciprocating plunger pump
CN104329164B (en) Free piston engine
CN105443478A (en) Hydraulic drive with rapid stroke and load stroke
CN105697288A (en) Pneumatic multi-level pressurizing device
CN103742381A (en) Fracturing pump system and fracturing truck
CN204901299U (en) Hydrodynamic lubrication fat pump
CN201755907U (en) Composite material extrusion molding equipment
CN202040039U (en) Single-acting hydraulic driving reciprocating plunger pump
CN104712594A (en) Coating supercharging device
CN106151853A (en) Hydrodynamic lubrication fat pump
CN217873154U (en) Gas compressor
CN207634409U (en) Pressure charging system
CN109854472A (en) Double cylinder double acting hydraulic reciprocating pump
CN216429856U (en) Bidirectional moving piston pump
CN201671804U (en) Automatic variable high-pressure emulsion pump for coal mine
CN203783832U (en) Fracturing pump system and fracturing truck
CN204328468U (en) A kind of liquid nitrogen pump vehicle
CN208216827U (en) A kind of full-hydraulic forklift independent steering system
CN203836585U (en) Movable type rapid nitrogen charging device
CN209682983U (en) A kind of cold extrusion hydraulic press
CN209324770U (en) A kind of hydraulic control valve, concrete pumping equipment high-low pressure automatic switching valve and hydraulic system
CN109538550B (en) Energy-saving hydraulic circuit system for rapid scrap steel shears
CN105156378A (en) Variable control device of hydraulic pump and control method thereof
CN205014001U (en) Oil gas lubricating system of pulsed oiling
CN104439005A (en) Power recovery matching type pump-controlled hydraulic control system of oil press

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20151223

Termination date: 20180425

CF01 Termination of patent right due to non-payment of annual fee