CN201526411U

CN201526411U - Large-torque hydraulic gear motor

Info

Publication number: CN201526411U
Application number: CN2009200164896U
Authority: CN
Inventors: 杨占英; 杨辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-08-21
Filing date: 2009-08-21
Publication date: 2010-07-14
Anticipated expiration: 2019-08-21

Abstract

The utility model belongs to hydraulic equipment, and particularly relates to a large-torque hydraulic gear motor. The gear motor comprises a shell (1), a front cover (3), a rear cover (2), a driving gear shaft (11), a driving gear (10), a driven gear shaft (4) and a driven gear (8), wherein a plurality of oil inlet cavities (12) and oil outlet cavities (9) are uniformly distributed on the same distance radius circumference at the periphery of the driven gear (8); one driving gear (10) meshed with the driven gear (8) is arranged between each oil inlet cavity (12) and each oil outlet cavity (9); the driving gear (10) forms one body with the driving gear shaft (11), and the driven gear (8) forms one body with the driven gear shaft (4); the oil inlet cavities and the oil outlet cavities of the large-torque hydraulic gear motor are on the equal-diameter circumference at the periphery of the driven gear, exert no radial force on a bearing and can improve the modulus and tooth number of the driven gear, thus improving output volume.

Description

High pulling torque mekydro motor

Technical field

The utility model belongs to hydraulic equipment, particularly a kind of high pulling torque mekydro motor.

Background technique

At present, the gear motor that adopts in the hydraulic system all is the nonoculture formula basically, i.e. a driving gear and driven gear engagement, and discharge capacity is no more than 250ml/rev, can not adapt to the needs of large hydraulic system.Simultaneously,, can't improve the moment of torsion of gear motor because its structural feature has determined the zone of high pressure that the bearing of output shaft is produced very big radial force, simultaneously not steady during low-speed running.

Summary of the invention

The purpose of this utility model is to overcome above-mentioned technical deficiency, provides a kind of low-speed running stable, the bearing of output shaft is not had the high pulling torque mekydro motor of radial force.

The technological scheme that the utility model technical solution problem adopts is: high pulling torque mekydro motor comprises housing, protecgulum, bonnet, driving gear shaft, driving gear, the passive tooth wheel shaft, driven gear, be characterized in evenly dividing on the peripheral same distance radius circumference of driven gear in housing and lay a plurality of oil suction chambers and go out oil pocket, each oil suction chamber and go out to adorn between the oil pocket driving gear with driven gear engagement, driving gear and driving gear shaft, driven gear and passive tooth wheel shaft are one, the two ends of driving gear shaft and passive tooth wheel shaft all are contained in the bearing in protecgulum and the bonnet versatilely, at driving gear shaft and passive tooth wheel shaft central shaft to establishing the gear shaft spill port and communicating with return opening on the bonnet.

The beneficial effects of the utility model are: the oil suction chamber of high pulling torque mekydro motor is on the circumference of the same footpath, periphery of driven gear with going out oil pocket, bearing there is not radial force, can improve the modulus and the number of teeth of driven gear, thereby raising discharge capacity, increase moment of torsion, because driving gear is a plurality of, interior at one time a plurality of driving gears and driven gear difference on the tooth depth direction mesh, thereby have improved low-speed running rear stability and starting torque simultaneously.

Description of drawings

Specify with embodiment below in conjunction with accompanying drawing.

Fig. 1 is a high pulling torque mekydro motor external structure.

Fig. 2 is the A-A sectional view of Fig. 1.

Among the figure, the 1-housing; The 2-bonnet; The 3-protecgulum; 4-passive tooth wheel shaft; The 5-flat key; The 6-oil outlet; The 7-filler opening; The 8-driven gear; 9-goes out oil pocket; The 10-driving gear; The 11-driving gear shaft; 11-1-driving gear shaft spill port; The 12-oil suction chamber; The 13-locating stud; The 14-clamping bolt; 15-passive tooth wheel shaft spill port; 16-bonnet return opening;

Embodiment

Embodiment, with reference to accompanying

drawing

1,2, housing 1 center of high pulling torque mekydro motor is equipped with passive tooth wheel shaft 4 and is the driven gear 8 of one, the passive tooth wheel shaft is equipped with flat key 5 on 4 terminations, on driven gear 8 peripheral same distance radius circumference, evenly divide and lay three oil suction chambers 12 and go out oil pocket 9, at each oil suction chamber 12 with go out all to adorn in the middle of the oil pocket 9 one and be the driving gear 10 of one with driving gear shaft 11 with driven gear 8 meshes.Driving gear shaft 11 and passive tooth wheel shaft 4 two ends all are contained in the bearing in protecgulum 3 and the bonnet 2.At the central shaft of passive tooth wheel shaft 4 to establishing passive tooth wheel shaft spill port 15, establish spill port 11-1 in the driving gear shaft 11, be provided with four return openings 16 on bonnet 2, wherein have three to communicate with driving gear shaft spill port 11-1, another communicates with passive tooth wheel shaft spill port 15.On protecgulum 3, be provided with oil outlet 6, establish filler opening 7 on the bonnet 2, respectively with go out oil pocket 9 and oil suction chamber 12 communicates.On housing 1, be arranged with locating stud 13, location when being used to assemble.Protecgulum 3, left side dress bonnet 2 and together fastening with four bolts 14 are equipped with in housing 1 right side.

During high pulling torque mekydro motor operations, high pressure oil is after the filler opening 7 of bonnet 2 enters into the oil suction chamber 12 of housing 1, high pressure oil is full of in driving gear 10 and driven gear 8 engaged gap, and promotion driving gear 10 turns clockwise, driven gear 8 inhour rotations simultaneously, when the high pressure oil between driving gear 10 and the driven gear 8 enter housing 1 go out in the oil pocket 9 after, discharge by protecgulum 3 oil outlets 6 and to enter in the fuel tank.During counter-rotating, going out 9 of oil pockets becomes oil suction chamber, and oil suction chamber 12 becomes and oil pocket, into and out of

hydraulic fluid port

7,6 in like manner.

Claims

1. high pulling torque mekydro motor, comprise housing (1), protecgulum (3), bonnet (2), driving gear shaft (11), driving gear (10), passive tooth wheel shaft (4), driven gear (8), it is characterized in that evenly dividing on the peripheral same distance radius circumference of driven gear (8) in housing (1) and lay a plurality of oil suction chambers (12) and go out oil pocket (9), each oil suction chamber (12) and go out to adorn between the oil pocket (9) driving gear (10) with driven gear (8) engagement, driving gear (10) and driving gear shaft (11), driven gear (8) is one with passive tooth wheel shaft (4), the two ends of driving gear shaft (11) and passive tooth wheel shaft (4) all are contained in the bearing in protecgulum (3) and the bonnet (4) versatilely, at driving gear shaft (11) and passive tooth wheel shaft (4) central shaft to establishing gear shaft spill port (11-1,15) and with return opening (16) on the bonnet (2) communicate.