CN100580226C - Hydraulic power acceleration equipment - Google Patents

Abstract

The invention relates to a hydraulic power speed increasing device which comprises hydraulic oil circuit systems, a hydraulic power device and a speed increasing gearbox; the hydraulic power device consists of a rotor and a shell; the shell consists of an upper cover and a lower cover; the inner wall of the upper cover and the inner wall of the lower cover are respectively provided with upper and lower grooves; the upper and the lower grooves are jointed and matched one by one correspondingly, to form 4N circular grooves; the rotor consists of a power shaft and impellers arranged on the power shaft; a spacing ring is arranged between every two adjacent impellers; all the impellers are embedded in all the circular grooves one by one correspondingly; all the circular grooves are separated by the spacing rings, to form closed cavities; each closed cavity forms an oil cylinder; every four adjacent oil cylinders form an oil cylinder set; the shaft end of the power shaft is connected with the input shaft of the speed increasing gearbox; 4N hydraulic oil circuit systems are arranged; each hydraulic oil circuit system is connected with the oil inlet channel and the oil outlet channel of an oil cylinder; the device has the advantages of compact structure, large output torque, small impulsive motion and high rotating speed, and has wide application prospect.

Description

Hydraulic power acceleration equipment

Technical field

The present invention relates to hydrokinetic machine, particularly a kind ofly can export the high-revolving hydraulic power acceleration equipment of high pulling torque.

Background technique

At the energy, chemical industry, metallurgical, the mine, recover the oil, during all types of industries such as communications and transportation are produced, often to use powerful driving arrangement, particularly can export the high-revolving driving arrangement of high pulling torque, as motor and oil hydraulic motor, the rotor of motor and stator are to be made of metal winding, the cost height, be subjected to speed governing, the restriction of technical bottlenecks such as heat radiation, the output power of motor is limited, the driving force of oil hydraulic motor comes from oil pump, the power of oil pump comes from motor, so the output power of single oil hydraulic motor also is limited, as if use that a plurality of oil hydraulic motors are together in series, though can export high pulling torque, but it also is quite difficult making a plurality of oil hydraulic motors keep run-in synchronism, and pressure imbalance appears in each hydraulic oil pipe system easily, causes system shock, thereby the torque ripple of output is big, chatter and shake take place in rotor easily, the poor synchronization of system, poor reliability.

Summary of the invention

For addressing the above problem, the purpose of this invention is to provide a kind of hydraulic power acceleration equipment, its compact structure, output torque are greatly, pulsation is little, rotating speed is high, have wide practical use.

For achieving the above object, the present invention is by the following technical solutions:

A kind of hydraulic power acceleration equipment comprises hydraulic oil pipe system, hydraulic activator, speedup box, it is characterized in that: described hydraulic activator is made up of rotor, housing, and housing is made up of loam cake and lower cover; The inwall of loam cake and lower cover has, lower groove, on, lower groove all is semicircular, total 4N of last groove, N is a positive integer, the quantity of lower groove equates with the quantity of last groove, loam cake, lower cover snaps together, described groove and each lower groove one on each, one corresponding splicing coincide, form 4N circular annular groove, described rotor is made up of impeller and line shaft, impeller is the fluted disc shape, circumferentially is evenly equipped with a plurality of teeth on the cylindrical of impeller, and the quantity of impeller is 4N, each impeller set is connected on the line shaft, the central through bore of each impeller cooperates with external splines on the line shaft with internal spline, is provided with spacer ring between two adjacent impellers, and spacer ring also is socketed on the line shaft; Described each impeller one, one embeds in each annular groove accordingly, spaced apart between each annular groove by described spacer ring, form airtight cavity volume, each airtight cavity volume constitutes an oil cylinder, per four adjacent oil cylinders form an oil cylinder group, 4N circular ring slot forms N oil cylinder group, each oil cylinder group is by No. one, No. two, No. three, No. four oil cylinder is formed, No. one oil cylinder has an oil inlet passage and an oil discharge passage, No. two oil cylinder has No. two oil inlet passages and No. two oil discharge passages, No. three oil cylinder has No. three oil inlet passages and No. three oil discharge passages, No. four oil cylinder has No. four oil inlet passages and No. four oil discharge passages, an oil inlet passage is horizontally installed on the right side of loam cake, and an oil discharge passage laterally is arranged on the right side of lower cover, an oil inlet passage, No. one oil discharge passage is communicated with an oil cylinder with 270 degree phase differences; No. two oil inlet passages, No. two oil discharge passages vertically are arranged on the top of loam cake, and No. two oil inlet passages, No. two oil discharge passages are communicated with No. two oil cylinders with 270 degree phase differences; No. three oil inlet passages are horizontally installed on the left side of lower cover, and No. three oil discharge passages laterally are arranged on the left side of loam cake, and No. three oil inlet passages, No. three oil discharge passages are communicated with No. three oil cylinders with 270 degree phase differences; No. four oil inlet passages, No. four oil discharge passages vertically are arranged on the bottom of lower cover, and No. four oil inlet passages, No. four oil discharge passages are communicated with No. four oil cylinders with 270 degree phase differences; The spatial phase angle of described No. two oil inlet passages and an oil inlet passage is 90 degree; The spatial phase angle of described No. three oil inlet passages and an oil inlet passage is 180 degree; The spatial phase angle of described No. four oil inlet passages and an oil inlet passage is 270 degree; The spatial phase angle of described No. two oil discharge passages and an oil discharge passage is 90 degree; The spatial phase angle of described No. three oil discharge passages and an oil discharge passage is 180 degree; The spatial phase angle of described No. four oil discharge passages and an oil discharge passage is 270 degree; The spindle nose of described line shaft is connected with the input shaft of speedup box, and described hydraulic oil pipe system has 4N, and each hydraulic oil pipe system is connected with oil discharge passage with the oil inlet passage of an oil cylinder respectively.

Described two ends of rotor is provided with supporting component, supporting component is made up of back-up ring, seal ring, bearing, nut, back-up ring is inlaid in the housing endoporus, seal ring is arranged on the back-up ring outside, bearing is arranged on the outside of seal ring, seal ring is compressed by bearing, and bearing is by nut check, and the arranged outside of nut has end cap.

Described speedup box is made up of casing, case lid, gear train, input shaft, output shaft and left and right transmission shaft, input shaft and output shaft are arranged on the casing medial axis coaxially, central authorities at casing are provided with supporting base, the front end of input shaft is by the bearing supporting at casing front end-plate middle part, the rear end of input shaft is supported by the bearing on the supporting base, the front end of output shaft is by the supporting of the bearing shell on the supporting base, and the rear end of output shaft is by the bearing shell supporting at box back plate middle part; A left side, right transmission shaft is separately positioned on the left side and the right side of input shaft, a left side, right transmission shaft is all parallel with input shaft, before the casing, be respectively arranged with left front in the bearing support in end plate left side, left back bearing, before the casing, be respectively arranged with right front in the bearing support on end plate right side, right back bearing, the two ends of Left Drive axle are respectively by left front, left back bearing supporting, the two ends of right transmission shaft are respectively by right front, right back bearing supporting, described gear train is by the input gear, output gear, left side transition gear, right transition gear, left side intermediate gear, right intermediate gear is formed, left side transition gear, left side intermediate gear is socketed on the Left Drive axle, right transition gear, right intermediate gear is socketed on the right transmission shaft, the input geared sleeve is connected on the input shaft, output gear is socketed on the output shaft, a left side, right transition gear all with input gear engagement, a left side, right intermediate gear all meshes with output gear.

Described loam cake and lower cover all be semi-cylindrical shaped, the edge of loam cake and lower cover is provided with the flange of evagination.

The present invention has following positive beneficial effect:

Hydraulic activator of the present invention adopts the mode of multi-cylinder synchronous interaction to turn round, the oil inlet passage of each oil cylinder and oil discharge passage along the circumferential direction stagger arrangement are uniform, the upper and lower, left and right symmetrical configuration, the system shock that causes in the time of can offsetting oil-feed and oil return, make the rotor automatic centering, each hydraulic oil pipe system drives an impeller, each impeller is rotation simultaneously under the driving of high pressure oil, the moment of torsion that each impeller produces is superimposed upon on the line shaft, thereby realize that little discharge capacity merges into big discharge capacity, little moment of torsion is accumulated into high pulling torque, the power concentration of loosing, thereby can export high pulling torque.

Speedup box adopts parallel axes left, center, right symmetric configuration, and compact structure, run stability are good, the linear velocity height, the gear of and arranged on left and right sides applies identical active force to the gear of centre, input shaft and output shaft can held stationary the state that all carries, the mechanical efficiency height, application is extensive.

Description of drawings

Fig. 1 is the structural representation of one embodiment of the invention.

Fig. 2 is the enlarged view of hydraulic activator among Fig. 1.

Fig. 3 is the side view of Fig. 2.

Fig. 4 is the worm's eye view of Fig. 3.

Fig. 5 is the exploded view of Fig. 2.

Fig. 6 is the exploded view of Fig. 4.

Fig. 7 is the exploded view of Fig. 5.

Fig. 8 is the exploded view of Fig. 7 rotor.

Fig. 9 is the sectional view of Fig. 2.

Figure 10 is the structural representation after upper and lower cover fastens among Fig. 2.

Figure 11 is 9 A-A sectional view.

Figure 12 is the structural representation that hydraulic activator is connected with two hydraulic oil pipe systems.

Figure 13 is the structural representation that hydraulic activator is connected with four hydraulic oil pipe systems.

Figure 14 is the internal structure schematic representation of speedup box.

Figure 15 is the plan view of Figure 14.

Embodiment

Number in the figure

3 No. three oil inlet passages of 2 No. two oil inlet passages of No. 1 oil inlet passages

4 No. four oil inlet passage 5 loam cakes 6 lower covers

7 rotors, 8 impellers, 9 line shafts, 10 hydraulic oil pipe systems

12 No. two oil discharge passages of No. 11 oil discharge passages

14 No. four oil discharge passages of 13 No. three oil discharge passages

Groove 16 lower groove 17 annular grooves 18 teeth on 15

19 spacer rings, 20 hydraulic activators

24 No. four oil cylinders of 23 No. three oil cylinders of 22 No. two oil cylinders of No. 21 oil cylinders

25 motor, 26 oil pumps, 27 fuel tanks, 28 oil inlet pipes

29 return tubes, 30 speedup boxes, 31 casings, 32 case lids

33 input shafts, 34 output shafts, 35 Left Drive axles, 36 right transmission shafts

37 supporting bases, 38 left front bearing 39 left back bearing 40 gear trains

41 right front bearing 42 right back bearing 43 input gears 44 output gears

45 left transition gear 46 right transition gears

47 left intermediate gear 48 right intermediate gear 49 coupling 50 flanges

51 end caps, 52 nuts, 53 bearings, 54 seal rings, 55 back-up rings

56 bearings, 57 bearings, 58 bearing shells, 59 bearing shells, 60 flanges

61 end caps, 62 nuts, 63 bearings, 64 seal rings, 65 back-up rings

Please refer to Fig. 1, Fig. 2, Fig. 3, the present invention is a kind of hydraulic power acceleration equipment, comprises hydraulic oil pipe system 10, hydraulic activator 20, speedup box 30, and hydraulic activator 20 is made up of rotor and housing, and housing is fastened by loam cake 5 and lower cover 6 and forms;

Please refer to Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Figure 10, the inwall of loam cake 5 and lower cover 6 has upper and lower groove 15,16, and upper and lower groove 15,16 all is semicircular, and last groove 15 total 4N are individual, and N is a positive integer, present embodiment N=4.

The quantity of lower groove 16 equates with the quantity of last groove 15, loam cake 5, lower cover 6 snap together, groove 15 coincide with each lower groove 16 1, one corresponding splicing on each, form the annular groove 17 of 16 circles, rotor 7 is made up of impeller 8 and line shaft 9, loam cake 5 and lower cover 6 all be semi-cylindrical shaped, the edge of loam cake 5 is provided with the flange 50 of evagination.The edge of lower cover 6 is provided with the flange 60 of evagination.

Impeller 8 is the fluted disc shape, circumferentially be evenly equipped with a plurality of teeth 18 on the cylindrical of impeller 8, the quantity of impeller 8 is 16, each impeller 8 is socketed on the line shaft 9, the central through bore of each impeller 8 cooperates with external splines on the line shaft 9 with internal spline, be provided with spacer ring 19 between two adjacent impellers 8, spacer ring 19 also is socketed on the line shaft 9.

Each impeller 8 one, one embeds in each annular groove 17 accordingly, spaced apart between each annular groove 17 by spacer ring 19, form airtight cavity volume, each airtight cavity volume constitutes an oil cylinder, per four adjacent oil cylinders form an oil cylinder group, the annular groove 17 of 16 circles forms four oil cylinder groups, and each oil cylinder group is made up of No. one, No. two, No. three, No. four oil cylinders 21,22,23,24.

No. one oil cylinder 21 has an oil inlet passage 1 and an oil discharge passage 11.

No. two oil cylinder 22 has No. two oil inlet passages 2 and No. two oil discharge passages 12.

No. three oil cylinder 23 has No. three oil inlet passages 3 and No. three oil discharge passages 13.

No. four oil cylinder 24 has No. four oil inlet passages 4 and No. four oil discharge passages 14.

An oil inlet passage 1 is horizontally installed on the right side of loam cake 5, and an oil discharge passage 11 laterally is arranged on the right side of lower cover 6, and oil inlet passage 1, an oil discharge passage 11 are communicated with an oil cylinder 21 with 270 degree phase differences.

No. two oil inlet passages 2, No. two oil discharge passages 12 vertically are arranged on the top of loam cake 5, and No. two oil inlet passages 2, No. two oil discharge passages 12 are communicated with No. two oil cylinders 22 with 270 degree phase differences.

No. three oil inlet passages 3 are horizontally installed on the left side of lower cover 6, and No. three oil discharge passages 13 laterally are arranged on the left side of loam cake 5, and No. three oil inlet passages 3, No. three oil discharge passages 13 are communicated with No. three oil cylinders 23 with 270 degree phase differences.

No. four oil inlet passages 4, No. four oil discharge passages 14 vertically are arranged on the bottom of lower cover 6, and No. four oil inlet passages 4, No. four oil discharge passages 14 are communicated with No. four oil cylinders 24 with 270 degree phase differences.

The spatial phase angle of No. two oil inlet passages 2 and an oil inlet passage 1 is 90 degree.

The spatial phase angle of No. three oil inlet passages 3 and an oil inlet passage 1 is 180 degree.

The spatial phase angle of No. four oil inlet passages 4 and an oil inlet passage 1 is 270 degree.

The spatial phase angle of No. two oil discharge passages 12 and an oil discharge passage 11 is 90 degree.

The spatial phase angle of No. three oil discharge passages 13 and an oil discharge passage 11 is 180 degree.

The spatial phase angle of No. four oil discharge passages 14 and an oil discharge passage 11 is 270 degree.

Please refer to Fig. 1, the spindle nose of line shaft 9 is connected with the input shaft 33 of speedup box 30 by coupling 49, and hydraulic oil pipe system 10 has 16, each hydraulic oil pipe system respectively with an oil cylinder on oil inlet passage be connected with oil discharge passage.

Please refer to Fig. 7, Fig. 8, Fig. 9, the forward and backward two ends of rotor 7 are provided with supporting component, the front end supporting component is made up of back-up ring 55, seal ring 54, bearing 53, nut 52, back-up ring 55 is inlaid in the housing endoporus, seal ring 54 is arranged on the outside of back-up ring 55, and bearing 53 is arranged on the outside of seal ring 54, and seal ring 54 is compressed by bearing 53, bearing 53 is by nut 52 lockings, and the arranged outside of nut 52 has end cap 51.

The rear end supporting component is made up of back-up ring 65, seal ring 64, bearing 63, nut 62, back-up ring 65 is inlaid in the housing endoporus, seal ring 64 is arranged on the outside of back-up ring 65, bearing 63 is arranged on the outside of seal ring 64, seal ring 64 is compressed by bearing 63, bearing 63 is by nut 62 lockings, and the arranged outside of nut 62 has end cap 61.

Please refer to Fig. 1, Figure 14, Figure 15, speedup box 30 is made up of casing 31, case lid 32, gear train 40, input shaft 33, output shaft 34 and left and right transmission shaft 35,36.

Input shaft 33 and output shaft 34 are arranged on the medial axis of casing 31 coaxially, central authorities at casing 31 are provided with supporting base 37, the front end of input shaft 33 is by bearing 56 supportings at casing front end-plate middle part, the rear end of input shaft 33 is by 57 supportings of the bearing on the supporting base 37, the front end of output shaft 34 is by 58 supportings of the bearing shell on the supporting base 37, and the rear end of output shaft 34 is by bearing shell 59 supportings at box back plate middle part.

Left and right transmission shaft 35,36 is separately positioned on the left side and the right side of input shaft 33, and left and right transmission shaft 35,36 is all parallel with input shaft 33.

Be respectively arranged with left front, left back bearing 38,39 in the bearing support in the forward and backward end plate of casing left side.

Be respectively arranged with right front, right back bearing 41,42 in the bearing support on the forward and backward end plate of casing right side.

The two ends of Left Drive axle 35 are respectively by left front, left back bearing 38,39 supportings, the two ends of right transmission shaft 36 are respectively by right front, right back bearing 41,42 supportings, gear train 40 is made up of input gear 43, output gear 44, left transition gear 45, right transition gear 46, left intermediate gear 47, right intermediate gear 48, and output gear 44, left transition gear 45, right transition gear 46 all are made of the duplex small gear.

Left side transition gear 45, left intermediate gear 47 are socketed on the Left Drive axle 35.

Right transition gear 46, right intermediate gear 48 are socketed on the right transmission shaft 36.

Input gear 43 is socketed on the input shaft 33, and output gear 44 is socketed on the output shaft 34.

Left and right transition gear 45,46 all meshes with input gear 43.

Left and right intermediate gear 47,48 all meshes with output gear 44.

Hydraulic activator 20 of the present invention adopts the run-in synchronism of multi-cylinder linkage manner, the oil inlet passage of each oil cylinder and oil discharge passage along the circumferential direction stagger arrangement are uniform, on, down, a left side, right symmetrical configuration, the system shock that causes in the time of can offsetting oil-feed and oil return, make rotor 7 automatic centerings, please refer to Figure 11, Figure 12, Figure 13, each hydraulic oil pipe system 10 drives an impeller 8, each hydraulic oil pipe system 10 is by motor 25, oil pump 26, fuel tank 27 is formed, motor 25 is connected with the main shaft of oil pump 26, the outlet of oil pump 26 is communicated with the oil inlet passage of oil cylinder through oil inlet pipe 28, the oil discharge passage of oil cylinder is communicated with fuel tank 27 through return tube 29, after passing through oil pump 26 and boost from the fluid of fuel tank 27, is entered in the oil cylinder by oil inlet passage, drives impeller 8 rotations, pressure oil are detoured in oil cylinder, and 270 degree are back to be returned the fuel tank 27 from oil discharge passage.

Each impeller 8 is rotation simultaneously under the driving of pressure oil, and the moment of torsion that each impeller 8 produces is superimposed upon on the line shaft 9, thereby realizes that little discharge capacity merges into big discharge capacity, and little moment of torsion is accumulated into high pulling torque, the power concentration of loosing, and line shaft 9 is just exported high pulling torque.

Line shaft 9 is connected with the input shaft 33 of speedup box 30 through coupling 49, when input shaft 33 rotates, input gear 43 rotates, left and right transition gear 45,46 is with 43 rotations of input gear, left and right transition gear 45,46 drives left and right transmission shaft 35,36 rotations respectively, and left and right transmission shaft 35,36 drives left and right intermediate gear 47,48 rotations respectively, makes output gear 44 rotations, the high rotating speed of output shaft 34 outputs, the power of high pulling torque.

Speedup box 30 adopts parallel axes left, center, right symmetric configuration, compact structure, run stability are good, the linear velocity height, the gear of and arranged on left and right sides applies identical active force to the gear of centre, input shaft 33 and output shaft 34 can held stationary the state that all carries, the mechanical efficiency height, application is extensive.In producing, all types of industries such as the energy, chemical industry, metallurgy, mine, oil recovery, communications and transportation all can find application, and can also be as the power of large ship.

Claims (4)

1, a kind of hydraulic power acceleration equipment comprises hydraulic oil pipe system, hydraulic activator, speedup box, and described hydraulic activator is made up of rotor, housing, and housing is made up of loam cake and lower cover; The inwall of loam cake and lower cover has upper and lower groove, upper and lower groove all is semicircular, total 4N of last groove, N is a positive integer, the quantity of lower groove equates with the quantity of last groove, loam cake, lower cover snap together, described on each groove coincide with the corresponding one by one splicing of each lower groove, forms the annular groove of 4N circle; It is characterized in that:

Described rotor is made up of impeller and line shaft, impeller is the fluted disc shape, circumferentially be evenly equipped with a plurality of teeth on the cylindrical of impeller, the quantity of impeller is 4N, each impeller set is connected on the line shaft, the central through bore of each impeller cooperates with external splines on the line shaft with internal spline, is provided with spacer ring between two adjacent impellers, and spacer ring is socketed on the line shaft;

Described each impeller embeds in each annular groove correspondingly, spaced apart between each annular groove by described spacer ring, form airtight cavity volume, each airtight cavity volume constitutes an oil cylinder, per four adjacent oil cylinders form an oil cylinder group, 4N circular ring slot forms N oil cylinder group, each oil cylinder group is by No. one, No. two, No. three, No. four oil cylinder is formed, No. one oil cylinder has an oil inlet passage and an oil discharge passage, No. two oil cylinder has No. two oil inlet passages and No. two oil discharge passages, No. three oil cylinder has No. three oil inlet passages and No. three oil discharge passages, No. four oil cylinder has No. four oil inlet passages and No. four oil discharge passages, an oil inlet passage is horizontally installed on the right side of loam cake, and an oil discharge passage laterally is arranged on the right side of lower cover, an oil inlet passage, No. one oil discharge passage is communicated with an oil cylinder with 270 degree phase differences; No. two oil inlet passages, No. two oil discharge passages vertically are arranged on the top of loam cake, and No. two oil inlet passages, No. two oil discharge passages are communicated with No. two oil cylinders with 270 degree phase differences; No. three oil inlet passages are horizontally installed on the left side of lower cover, and No. three oil discharge passages laterally are arranged on the left side of loam cake, and No. three oil inlet passages, No. three oil discharge passages are communicated with No. three oil cylinders with 270 degree phase differences; No. four oil inlet passages, No. four oil discharge passages vertically are arranged on the bottom of lower cover, and No. four oil inlet passages, No. four oil discharge passages are communicated with No. four oil cylinders with 270 degree phase differences; The spatial phase angle of described No. two oil inlet passages and an oil inlet passage is 90 degree; The spatial phase angle of described No. three oil inlet passages and an oil inlet passage is 180 degree; The spatial phase angle of described No. four oil inlet passages and an oil inlet passage is 270 degree; The spatial phase angle of described No. two oil discharge passages and an oil discharge passage is 90 degree; The spatial phase angle of described No. three oil discharge passages and an oil discharge passage is 180 degree; The spatial phase angle of described No. four oil discharge passages and an oil discharge passage is 270 degree; The spindle nose of described line shaft is connected with the input shaft of speedup box, and described hydraulic oil pipe system has 4N, and each hydraulic oil pipe system is connected with oil discharge passage with the oil inlet passage of an oil cylinder respectively.

2, hydraulic power acceleration equipment as claimed in claim 1, it is characterized in that: described two ends of rotor is provided with supporting component, supporting component is made up of back-up ring, seal ring, bearing, nut, back-up ring is inlaid in the housing endoporus, seal ring is arranged on the back-up ring outside, and bearing is arranged on the outside of seal ring, and seal ring is compressed by bearing, bearing is by nut check, and the arranged outside of nut has end cap.

3, hydraulic power acceleration equipment as claimed in claim 1, it is characterized in that: described speedup box is made up of casing, case lid, gear train, input shaft, output shaft and left and right transmission shaft, input shaft and output shaft are arranged on the casing medial axis coaxially, central authorities at casing are provided with supporting base, the front end of input shaft is by the bearing supporting at casing front end-plate middle part, the rear end of input shaft is supported by the bearing on the supporting base, the front end of output shaft is by the supporting of the bearing shell on the supporting base, and the rear end of output shaft is by the bearing shell supporting at box back plate middle part; A left side, right transmission shaft is separately positioned on the left side and the right side of input shaft, a left side, right transmission shaft is all parallel with input shaft, before the casing, be respectively arranged with left front in the bearing support in end plate left side, left back bearing, before the casing, be respectively arranged with right front in the bearing support on end plate right side, right back bearing, the two ends of Left Drive axle are respectively by left front, left back bearing supporting, the two ends of right transmission shaft are respectively by right front, right back bearing supporting, described gear train is by the input gear, output gear, left side transition gear, right transition gear, left side intermediate gear, right intermediate gear is formed, left side transition gear, left side intermediate gear is socketed on the Left Drive axle, right transition gear, right intermediate gear is socketed on the right transmission shaft, the input geared sleeve is connected on the input shaft, output gear is socketed on the output shaft, a left side, right transition gear all with input gear engagement, a left side, right intermediate gear all meshes with output gear.

4, hydraulic power acceleration equipment as claimed in claim 1 is characterized in that: described loam cake and lower cover all are semi-cylindrical shapeds, and the edge of loam cake and lower cover is provided with the flange of evagination.

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