CN2132835Y - Rotor plunger motor - Google Patents

Abstract

The utility model relates to a rotor rotary type plunger motor, comprising a crank shaft, a rotor which is matched with the crank shaft, and a plunger. The crank shaft and the rotor run in an eccentric adjustment mode. The rotor rotary type plunger motor has the characteristic of a guide rod retarding mechanism. The rotor rotary type plunger motor is driven high-pressure oil. The rotor rotary type plunger motor can output high power. The rotor rotary type plunger motor has the sealed performance of a reciprocating type, and the mechanical efficiency of a rotor type. The utility model is a novel rotor plunger motor has the characteristic of full surface contact. The rotor rotary type plunger motor is the substituting product of the existing motor class.

Description

Rotor plunger motor

The utility model relates to a kind of piston motor of rotor rotary, and this structure belongs to the mechanical manufacturing field of hydraulic pressure (air pressure) radial plunger piston motor.

Before the utility model design, hydraulic pressure (air pressure) motor has: 1, and reciprocating type radial plunger piston motor, axial cam-type axial piston motor, although the said motor good seal performance, it is big also to exist reciprocal coherence loss, galloping, mechanical parts are many, bulky shortcoming.2, gear motor, the deficiency of this motor is: can only carry the liquid of certain viscosity, serious wear, poor sealing.3, sliding-vane motor is pressed in can only obtaining, owing to adopt blade, thereby serious wear, though mechanical efficiency height and complex structure.

The purpose of this utility model is at deficiency of the prior art, designs that a kind of to have the reciprocating seal performance good, and the mechanical efficiency height of rotator type all is the novel piston motor of the novel high-pressure structure of face contact.

The utility model comprises a bent axle, having plural eccentric cam drive plunger group on the bent axle moves in rotor, and the distribution of cam should be consistent with the angle of epitrochanterian plunger hole and centre distance layout, general by 60 °, 90 °, 120 ° distributions, and the center hole on the cam on the bent axle and the corresponding plunger becomes movingly, plunger is arranged in the working room in the rotor by corresponding angle, be equipped with on motor shell radially or shaft orientation liquid feeding (gas) road and fluid (gas) road, whole device is encapsulated in the motor shell.

Description of drawings:

Fig. 1 is a general assembly master sectional view of the present utility model.

Fig. 2 is a general assembly of the present utility model left side sectional view.

Fig. 3 is a rotor axial whole-cutaway view of the present utility model.

Elaborate below in conjunction with the structural principle and the working principle of accompanying drawing to model utility.

With reference to Fig. 1, Fig. 2, the utility model comprises a bent axle (6), have plural cam (A) on the bent axle, and cam (A) is by certain centre distance and certain angle (60,90,120 °) arrange, cam (A) can be divided into split with main shaft, each cam (A) has a plunger (5) movingly, and the center hole (B) on the plunger (5) cooperates, boss (C) on the rotor (7) is the operation chamber (D) of plunger (5), be distributed in symmetrically in the inner chamber of rotor (7), rotor (7) and motor shell (4), protecgulum (3), eccentric system below bonnet (8) garden outside big is equal, crankshaft center is drawn with center line, run to above eccentric drafting of plunger (5) of upper dead center, radially or axially be shaped on feed liquor (gas) road (E) and fluid (gas) road (F) on the motor shell, whole device is encapsulated in the motor shell (4), wherein, protecgulum (3) has the block bearing (G) of supporting crankshaft (6) rotation with centreline configuration, dispose the rotation of bearing (H) on the bonnet (8) with supporting crankshaft (6), in motor shell (4), axially can be equipped with seal groove, divide into wavy spring, its objective is the cylindrical outer surface of canned rotor (7), between preceding gland (1) and protecgulum (3), design has mechanical seal (2), protecgulum (3) motor shell (4), the following eccentric system of boss (I) on the bonnet (8), rotation with supporting rotor (7), rotor (7) is gone up (O) and is sentenced the technology that packing seal or rotor cylindrical add cover and solve, if filler not, must extend and seal line segment between oil suction chamber and the oil-discharging cavity, plunger (5) top dead center must be added the device of relief valve, to improve the volumetric efficiency of piston motor.

With reference to Fig. 2, dispose plural symmetric plunger worktable (C) on the said rotor of Fig. 3 (7), a plunger (5) has two working rooms (D), be that working room (D) on the boss (C) is for circular cylindrical cavity, rotor (7) is an axially split type, fastening with hexagon socket head cap screw, internal rotor is a cavity, certain thickness (J) is arranged, bearing is located to have in rotor (7) two (K), unified being contained in the motor shell (4), with the rotation of supporting rotor (7), radially be shaped on the plunger working room (D) and the clutch release slave cylinder boss (C) of symmetry at it, and press several angle and centre distance layout.

After the high pressure oil input, plunger group (5) driving bent axle (6) just drives rotor (7) and bent axle (6) rotates in fixed motor shell (4), the working room (D) of plunger (5) forms a volume and is periodically variable circular cylindrical cavity, when the interior circle of (L) of plunger (5) end face and motor shell (4) is about to contact, the upper dead center that is called plunger (5), the volume minimum of the working room of plunger (D), level off to 0, be in beginning oil-feed (gas) state, and the other end of plunger (5) has been filled with high pressure oil, be in the oil extraction state, so all work in this structure plunger (5) two, but operating mode is opposite, the drive plunger operation, the tangential force that produces on plunger (5) group is impelled rotor (7), bent axle (6) rotation, thereby the working procedure of realization high pressure liquid (gas) body input machinery output.

Because the suffered external pressure of each plunger is identical, and rotor is operation in circle, so this structure running is steady, noise is little, and the utility model reciprocity is strong, can make high pulling torque piston motor and variable piston motor.

The utility model compared with prior art has following characteristics:

(1) simple in structure, volume is little, has the good rotary piston machine tool of reciprocating seal performance efficient height, and steady characteristics turn round.

(2) have the performance of reversible working,, can make high pressure oil pump and use by driven by motor.

(3) adopt different appearance structures, runner and sealing system can be designed same structure but the motor of different operating modes and the connecting body of motor have constituted new type, as the oil motor of diving, submersible motor etc.

(4) can be designed to vacuum motor, Motors such as metering motor use.

(5) can be designed to air compressor and motor uses.

The utility model rotor piston motor is applicable to metallurgy, the mine, and lifting is in the hydraulic system of machinery such as transportation and Ship lifting.

Model machine discharge capacity of the present utility model is 0-109.01/r, and flow is 158.8-1831/Min, pressure 156-350kgf/cm square metre, external dimension 420mm * 210mm * 200mm, its structure is made up of seven plungers, and throw of eccentric is 8mm, preceding gland, protecgulum, motor shell, bonnet, rear pressing cover is ironcasting, and rotor is a boron alloy, the palpus precision casting, plunger is a forging, can be integral body or split.Bent axle is 40Cr, and part is rough turn, the palpus high frequency hardening, and grinding machine on the back is 90 intersections between the plunger, protecgulum, motor shell, bonnet is connected by screw, mechanical seal, screw is external member, does not need special device to produce.

Claims (7)

1, the novel rotor piston motor is mainly by rotor (7), plunger (5), bent axle (6), motor shell (4), protecgulum (3), bonnet (8) is formed, characteristics of the present utility model are: a rotor (7) movingly in motor shell (4), and rolling bearing (K) location is adopted at two, front and rear covers (3,8) be connected with bolt with motor shell (4), active chamber (D) on each plunger in the plunger group (5) and rotor (7) inner convex platform (C) is for being connected movingly, bent axle (6) drives plunger (5) by cam (A) and is connected for the hinge joint shape with rotor (7), and adopt main shaft bearing (G on the front and rear covers, H) self-clinching or locating stud location are adopted, when bent axle (6) rotates in supporting location between front and rear covers and the motor shell, do relative movement by cam (A) the drive plunger (5) that throw of eccentric equates with rotor (7), be again at the uniform velocity than rotation, its relative journey of plunger is 4 times of bent axle overhead cam throw of eccentric, bent axle (6) rotating speed is 2 times of rotor (7) rotating speed.

2, novel rotor piston motor according to claim 1, the cylindrical that it is characterized in that described rotor (7) is cylindric, certain thickness (J) is arranged, be equipped with plunger (5) operation working room (D) and clutch release slave cylinder boss (C) symmetrically with certain centre distance and angle in the rotor (7), rotor (7) is integrated type or axially split type, in motor shell (4), rolling bearing (K) supporting location can be adopted in rotor (7) two.

3, according to claim 1,2 described novel rotor piston motors, it is characterized in that having on the bent axle (6) eccentric cam (A) of certain centre distance and angle, its centre distance is consistent with epitrochanterian plunger hole (D) with the angle layout, and its cam can be the split that key connects.

4, novel rotor piston motor according to claim 1, described plunger (5) has through hole (B) for cylindric centre or two is cylindric, there is certain thickness connecting body the centre, be shaped as circular, the centre has through hole (B), and all draw with rotor (7) radius at its plunger two.

5, novel rotor piston motor according to claim 1, it is characterized in that, motor shell (4) axially or radially is equipped with feed liquor (gas) road (E) on shell, fluid (gas) road (F), and advance discharge opeing (gas) road can be divided into some right, and relevant with plunger setting type and number, in shell, axially can be furnished with seal groove, divide into wavy spring.

6, novel rotor piston motor according to claim 1 is characterized in that, front and rear covers (3,8) is gone up following off-centre and is shaped on boss (I), is shaped on the bearing hole (G, H) of supporting crankshaft (6) rotation with center line.

7, according to the described novel rotor piston motor of claim, it is characterized in that: the top dead center of the plunger on the motor shell (5) is equipped with the overflow hole (11) that relief valve (10) and zone of high pressure communicate.

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