CN2918956Y - Direct-flow heavy grease gun - Google Patents

Abstract

The utility model relates to an oil filling tool and is a heavy grease gun, in particular to an 18V DC heavy electric grease gun, comprising a blow box, an 18V heavy electric grease gun, a heating blanket and a fast charger. The 18V electric grease gun is provided with a DC power supply by the extrapolation battery pack to drive a DC motor with a large power and the speed is slowed down by a three-grade planet gear and a spur gear to enlarge the motor output torque and drive the slider-crank mechanism, thereby turning the initial rotation of the motor into slider reciprocating linear motion, meanwhile, driving the piston to do reciprocating motion and coordinating with the fuel supply system to fulfill the high pressure oil filling function of the grease gun. The utility model is convenient to take, keep and operate, and has the advantages of saving labor and quick operation, beautiful appearance, high pressure and large flow.

Description

Straight-through heavy type greaser

Technical field

The utility model relates to a kind of oiling instrument, is a kind of 18V straight-through heavy type greaser.

Background technique:

Grease gun is a kind of oiling instrument easily and fast that a kind of automobile, farm machinery, engineering machinery and other industry adopt.Generally use hand grease gun and 12V light-weight electric grease gun, hand grease gun is simple in structure, cheap, but hand grease gun is to be driven by manpower, there is effort, oiling is slow, and pressure such as can't improve at fatal shortcoming, and the light-weight electric grease gun still can not meet the needs of the specialized market of high-pressure high-flow.

Steven WPost and William T model utility a kind of by frame, third-level planetary gear reduction, crank block, (U.S.P 6 for the electric grease gun that plunger, switch, oil supply system and safety valve are formed, 315,327), but its high output pressure 6000pis and volume are big, operation is still not too convenient.

The model utility content:

The purpose of this utility model provides a kind of straight-through heavy type greaser.Be a kind of in light weight, outward appearance is simple and direct attractive in appearance, and is easy to operate, the straight-through heavy type greaser that delivery pressure is high.

Grease gun of the present utility model is to be made up of the heavy grease gun of the 18V in blow molded case, the case, electric blanket, quick charger.Heavy grease gun in the case, it is a kind of 18V straight-through heavy type greaser, be to provide electric current, drive the high-speed high-power direct current generator, slow down by multi-stage planetary gear by the outside plug type cell bag, increase the motor output torque, drive slidercrank mechanism, finish motor thus and convert the slide block linear reciprocating motion to, drive the plunger linear reciprocating motion simultaneously, and collaborative with oil supply system, finish the function of grease gun high pressure oiling.

Working principle of the present utility model is:

Motor 41 is after gear reduction, and motor speed reduces, and the torsion of motor output has increased.When driving driven gear 23 rotations, be fixed in eccentric shaft 18 on the driven gear 23, drive slide block 20 and in frame 13 chutes, do reciprocating linear motion.The afterbody of plunger 15 floats and is connected in the front end of slide block 20.It is together reciprocating that slide block 20 drives plunger 15.

When plunger 15 moves backward, meeting negative pressure of generation of forced in airtight oil supply system, butter can reach under the thrust of grease bucket spring at the suction of negative pressure generation, charges into the grease chamber of plunger pump.When plunger travels forward, be enclosed in butter in the grease chamber, just forced to release through one-way valve by plunger 15.Move in circles the butter in draining grease bucket 38.

The direct current drive grease gun of the utility model 18V is made up of following mechanism:

Plunger pump mechanism;

Slidercrank mechanism;

Reduction gears mechanism;

Oil supply system;

Operation system;

Safety valve.

Described plunger pump mechanism is special processing one endoporus on frame 13, and plunger 15 places the hole, and one-way valve 8 is assemblied in the hole front end.By the to-and-fro motion of plunger 15 and the unidirectional on state characteristic of one-way valve, release by outlet 23 by filler opening 22 suction butter and high pressure.

Described slidercrank mechanism is on frame 13 chute to be set, and slide block 20 is complementary with chute, between slide block 20 and body 13 chute walls, is not directly to contact, but is contacted with sidewall by two needle roller pins 19, reduces friction with this.Adopt the connecting mode that floats between plunger 15 slide blocks and 20, the resistance during the reducing mechanism motion is eliminated the influence that machining error produces.Connecting mode is described as follows particularly; By retaining screw 46 and Slave Block 21 plunger 15 and slide block 20 are floated and to connect, see accompanying drawing 4, be fixed in bearing pin 18 on the driven gear 28 and the axle sleeve on the bearing pin, driving sliding block 20 moves reciprocatingly, and promptly rotatablely moving of reducing gear output is converted to the to-and-fro motion that slide block 20 drives plungers 15.

Motor gear reducing gear in the utility model is, reduce the rotating speed of motor 41, increase the output torque, motor 41 and gear box cover 3 are fixed on internal gear 27 on the frame 13, and by motor gear 30, driving gear 29, planetary pinion 28 and driving gear 22, driven gear 23 are formed.First three level of reducing gear is a planetary gear speed-reduction, and the fourth stage is that spur gear slows down.

The heavy duty design of five planetary pinion 28 transmissions has been adopted in set third-level planetary gear reduction in the gear-box on third level planetary reduction gear, this layer gear thickeied many again than other layer gear, be increased to 8mm thickness from common 6mm thickness; Fourth stage gear reduction is the spur gear transmission, and for satisfying heavily loaded designing requirement, driving gear 22 and driven gear 23 strengthen module, and module is increased to 1.25 from 0.7; The crankshaft 17 of installation driven gear is by 51 supportings of two radial ball bearings, guarantees crankshaft rigidity and running steadily, and design has different greatly with known grease gun herein.

Described oil supply system is pushed into oil the filler opening A of grease chamber of body 13 by the spring thrust in the oil storage cylinder 38.As near the filler opening A air being arranged, can get rid of by bleed valve 35, under the plunger effect, butter backs down one-way valve through oil outlet B oil pipe, and oil nozzle is pushed out to lubricating point.Move in circles the oil in draining oil drum.Described one-way valve is by frame 13, copper sheathing 60, steel ball 50, unidirectional spring 34, red copper pad 49, hexagon head bolt 48 formations such as grade.

Be pressed into brass bush 34 in the above-mentioned frame 13, all mill out at the filler opening place, and assurance is pressed into the butter of hyperbaric chamber and can scurry in the chute of frame 13 along the plunger 15 and the gap of copper sheathing 34.Connection screw thread on the oil drum 38 is processed with the roll extrusion mode, compares with the cutting of routine, protects the intensity of screw thread better.Simultaneously, the screw thread of frame 13 and oil drum 38 has than conventional design and extends to some extent, when guaranteeing to use the barreled butter with this, the connection of grease bucket 38 and frame 13 firmly, stable.

Safety valve described in the utility model is to be made of valve body, sealed steel ball, butterfly spring, dish spring alignment axis and adjusting screw, and safety valve is installed on the frame end.On design concept, carry out brand-new design, screw is blocked up with safety valve be combined to one, both are united two into one at functional structure.In addition, spring is selected for use and is had breakthrough, and does not select conventional pressure spring for use, but adopts belleville spring, and its bulk is little, and elastic force is big.

In the grease gun of the present utility model the position of gear-box and motor is placed the same side of oil supply system, whole volume and occupy the space and greatly reduce, because adopt level Four gear reduction of the present utility model, used gear material all adopts ferrous based powder metallurgical, drive motor adopts the 700# motor.Consider that from increasing the grease gun flow push away the oil column increasing diameter and be added to 7mm, body adopts aluminium die casting, guaranteeing that weight is lighter under the body intensity, outward appearance is simpler and more direct, attractive in appearance.High output pressure can reach 10000psi, and flow is up to 75～80g/min.

Description of drawings:

Fig. 1 is grease gun main body A of the present utility model-A sectional drawing;

Fig. 2 is a pushing block structural drawing in the grease gun of the present utility model;

Fig. 3 is planetary pinion driving gear and main shaft connection diagram;

Fig. 4 is the whole sketch of 18V direct current grease gun of the present utility model;

Fig. 5 is the three-dimensional explosion views of direct current 18V grease gun;

Fig. 6 grease gun decomposing schematic representation.

Fig. 7 grease gun packing sectional view.

Wherein:

1, left shell 2, right shell body 3, gear box cover 4, power source connecting

5, at the bottom of the cell bag 6, battery clad 7, knob 8, S circle

9, top pole piece 10, left and right sides pole piece 11, knob shell fragment 12, battery

13, frame 14, cover plate 15, plunger 16, main shaft

17, crankshaft 18, bearing pin 19 sidewinders bearing pin 20, pushing block

21, Slave Block 22, driving gear 23, driven gear 24, gearwheel

25, axle sleeve 26, pin sleeve 27, internal gear 28, planetary pinion

29, driving gear 30, motor gear 31, main shaft pad

32, gear-box pad 33, direct current single speed switch 34, unidirectional spring

35, bleed valve 36, plug 37, oil pipe 38, oil drum

39, oil drum sealing gasket 40, flat oil nozzle 41, motor

42, circlip for shaft 43, circlip for hole 44, cross pan head screw

45, cross small pan head screw 46, socket head screw 47, tapping screw

48, hex head bolt 49, red copper pad 50, steel ball

51, bearing 52, oil sealing 53, quick charger

54, toolbox 55, suspension ring 56, braces 57, electric blanket

58, temp controller 59, electric wire 60, copper sheathing 61, tooth rifle case

Embodiment:

Following examples will help to understand the utility model, but be not limited to content of the present utility model:

By accompanying drawing 1-5 as seen, grease gun mainly is made of system, switch, safeguarding mechanism frame 13, left casing 1 and right casing 2, plunger pump, crank block, gear reduction, confession.

Plunger pump is special processing one endoporus on frame 13, and plunger 7 places the hole, and one-way valve 8 is assemblied in the hole front end, by the to-and-fro motion of plunger 7 and the unidirectional on state characteristic of one-way valve, is released by outlet 23 by import oil 22 suction butter and high pressure.

Safety valve in frame 13 ends is by valve body, sealed steel ball 50, butterfly spring 34, the butterfly alignment axis, and two ends are applied mechanically copper sheathing 60 and copper sheet 49 respectively, prevent leakage of oil, and are fixed in frame 13 ends with hex head bolt 48.

From the visible crank block of Fig. 4 is that slide block is complementary with the chute on the frame 13, contact with the frame chute wall by two needle roller pins 19, by retaining screw 46 and driven plate 21 stick harness 15 and slide block 20 are floated and to be connected, to reduce resistance, driving sliding block 20 moves reciprocatingly, and is about to reduce the moving to-and-fro motion that converts slide block 20 drive stick harnesses 15 to of rotation of mechanism's output.

Reduce the rotating speed of motor 41, increase output torque and finish by reduction gears mechanism.Motor 41 is connected with gear box cover 3 by screw 44, and by screw 45 fixing wanting on the frame 13, and by motor gear 30, driving gear 29, planetary pinion 28 and master gear 22, driven gear 23 common formation reducing gears, first three level is that planetary pinion 28 slows down, wherein third level planetary pinion 28 carries out the heavy duty design, the planetary thickness of the third level is 8mm, the fourth stage is that spur gear slows down, and requires 2 for satisfying heavy duty, and the module of driving gear 22 and driven gear 23 is 1.25.The crankshaft 17 of driven gear 23 is installed, and is by 151 supportings of two radial ball bearings, guarantees crankshaft rigidity and running steadily, and the upper end that is preferably in main shaft 6 increases by a ball bearing 51.

Oil supply system is to promote by the springs in the oil storage cylinder 38, oil is pushed into the filler opening A of grease chamber of body 13, as near the filler opening A air being arranged, can get rid of by bleed valve 35, under the plunger effect, butter backs down one-way valve, through oil outlet B, oil pipe 37 flat oil nozzles 40 are pushed out to lubricating point and move in circles, the oil in draining oil drum, one-way valve is by frame 13, copper sheathing 60 steel balls 50, unidirectional spring 34, red copper pad 49, hex head bolt 48 formations such as grade.Design one annular groove prevents that butter is back in the gear-box on copper sheathing.

Grease gun of the present utility model put one by at the bottom of the cell bag 5, battery 12 and battery clad 6 are formed the outside plug type cell bag that 18V is provided DC electrical source, an and configurable quick charger 53, these battery 12 capacity are 2000mAH.

Left and right sides casing 1 on the outsourcing frame 13 and 2 and be fixed on oil drum sealing gasket 39 on the casing 13, it is to be a slide switch, is connected with motor 41 with battery 12 by power source connecting 4.When starting, can be by the current drives direct current generator, with the gear reduction of level Four row bar, increase the motor output torque, drive crank block, finish the motor rotation and be connected into the slide block linear reciprocating motion, drive plunger simultaneously and do linear reciprocating motion, work in coordination with oil supply system, finish the function of grease gun high pressure oiling.

Grease gun of the present utility model increases a heating system annex in addition, and promptly an electric blanket 57 is met the plug cold weather, and butter viscosity increases, with electric blanket 57 heating butter, to increase flowability.This electric blanket 57 has the plug that lights a cigarette that LED shows.

Grease gun of the present utility model adopts and moulds case packing, is easy to carry and stores.

18V direct current grease gun of the present utility model has the braces setting, makes more convenient to operately, and available one hand is operated.

Claims (4)

1, a kind of heavy grease gun is characterized in that by blow molded case, and the heavy grease gun of the 18V in the case, heating blanket, quick charger are formed; The heavy grease gun of 18V is to be made of casing, frame, plunger pump, crank block, gear reduction, oil supply system, safety valve, switch and DC electrical source in the described case, wherein, described plunger pump mechanism is special processing one endoporus on frame, plunger places the hole, and one-way valve is assemblied in the hole front end; Chute on described crank block and the frame is complementary, and by retaining screw and Slave Block plunger being floated with slide block connects; Described gear reduction is by motor and gear box cover the internal tooth wheel to be fixed on the frame, and by the motor gear that connects in succession, driving gear, the third-level planetary gear 28 of deceleration, the driving gear of deceleration and driven gear constitute; Described safety valve is installed on the frame end, and by valve body, sealed steel ball, butterfly spring, butterfly spring alignment axis and adjusting screw constitute; Described oil supply system is by an oil storage cylinder, have in the oil storage cylinder spring and be connected with frame filler opening A by the oil drum sealing gasket, described tooth rifle case and motor place oil supply system the same side.

2, grease gun as claimed in claim 2 is characterized in that the third level is five planetary pinions of thickening in described three grades of action gears.

3, grease gun as claimed in claim 1, the module that it is characterized in that described driving gear and driven gear is 1.25.

4, grease gun as claimed in claim 1 is characterized in that described slide block (20) contacts by two needle roller pins (19) with body (13) chute wall.

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