CN2679025Y

CN2679025Y - Hydraulic driving bicycle

Info

Publication number: CN2679025Y
Application number: CN 200420020070
Authority: CN
Inventors: 徐联奎; 胡霁野; 程蓉芳
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-02-11
Filing date: 2004-02-11
Publication date: 2005-02-16
Anticipated expiration: 2014-02-11

Abstract

The utility model discloses a hydraulic driving bicycle. The utility model relates to a bicycle, and the technical problem needing to be solved is to provide a hydraulic driving bicycle. The hydraulic driving bicycle comprises a foot-stepped or hand-driven crank, a hydraulic pump and a shell rotary hydraulic motor. The hydraulic driving bicycle is characterized in that the hydraulic pump is fixed to a bicycle frame, and the crank is arranged at the main shaft end of the hydraulic pump; two ends of the flow distributing shaft of the hydraulic motor are fixed to the crotch opening of the wheel carrier of the bicycle, the radical outer edge of the outer shell of the hydraulic motor is connected with a disk chuck, the circumferential edge of the disk chuck is provided with wheel spokes, and the hydraulic motor is kept at the center of the driving wheel of the bicycle; the oil-in pipe joint and the assembly oil pipe of the oil-out pipe joint of the hydraulic motor are respectively connected with the edge oil pipe joint and the oil return pipe of the hydraulic pump. The hydraulic driving bicycle is suitable for various bicycles such as common bicycles, body-building bicycles, light and heavy-load bicycles, cross-country bicycles, water bicycles, etc.

Description

The hydrostatic drive bicycle

Technical field

The utility model relates to the hydrostatic drive bicycle.

Background technology

Existing bicycle is of a great variety, common bicycle has common car, traction engine, light roadster, racing car, body-building vehicle, walks rail car, car waterborne, tandem car, acrobatics car, tricycle for the disabled, these bicycles are all stepped on or cranker by rider's pin, make the sprocket rotation of crank one end, and by chain gear, drive is contained in the sprocket wheel of wheel hub and drives bicycle.This sprocket wheel of bicycle, chain transmission system are installed cumbersome, resist the ability of external environment condition, and the service life of its chain, sprocket wheel, steel ball, steel bowl is generally shorter, and the maintenance that needs often to refuel is cleaned.The defective of eliminating the bicycle chainwheel chain gear becomes the long-term problem of exploring of people.At present; the application of hydraulic technique in industry is increasingly extensive; rotary casing type HM Hydraulic Motor, gear-within-gear pump, external gear pump, screw pump have all that device is gently little, compact conformation, use and management is convenient, automatic capability is strong, safe and reliable overload protection is arranged, can be competent at the principal feature that compares bad working environment, still is not applied to bicycle as yet.

The utility model content

The utility model technical issues that need to address are to make bicycle can abandon traditional sprocket wheel chain transmission mode, and a kind of hydraulicdriven bicycle is provided.

The technical solution of the utility model comprises that pin is stepped on or hand two shaft Hydraulic Pumps, rotary casing type HM Hydraulic Motor, it is characterized in that Hydraulic Pump is fixing on vehicle frame, the pintle two ends of HM Hydraulic Motor are fixed at the prong of vehicle wheel frame, the radially outer of hydraulic motor shell is connected with floral disc, floral disc week makes HM Hydraulic Motor remain on the center of bicycle drive wheel along wheel spoke or solid web are installed; The oil inlet of HM Hydraulic Motor connects and connects oil outlet pipe that equipped oil pipe is connected Hydraulic Pump respectively with oil outlet pipe and connect with oil return pipe and connect.

The utility model is owing to adopt Hydraulic Pump and the mechanical system of the power hydraulic system replacement chain sprocket transmission that HM Hydraulic Motor is formed, make the transmission looks of bicycle that basic change take place, hydrostatic drive compact conformation, volume be little, realize the automatic control speed governing of infinite speed variation, automatic tracking easily, has the technique effect that promotes the bicycle quality.

Description of drawings

Fig. 1 represents hydraulic system principle figure of the present utility model;

Fig. 2 represents radial ball piston hydraulic motor structure figure;

Fig. 3 represents axial bulb stopper hydraulic motor structure figure;

Fig. 4 represents the constructional drawing of gerotor pump;

Fig. 5 represents the constructional drawing of external gear pump;

Fig. 6 represents the constructional drawing of gear-within-gear pump;

Fig. 7 represents the constructional drawing of screw pump;

Fig. 8 represents the constructional drawing of manual hydraulic servo controllable capacity pump;

Fig. 9 represents the constructional drawing of pressure compensation (permanent power) controllable capacity pump.

The specific embodiment

Implement concrete mode of the present utility model below in conjunction with description of drawings:

Fig. 1 is a hydraulic system principle figure of the present utility model; The adoptable radial ball piston motor of HM Hydraulic Motor shown in the figure, referring to Fig. 2, the field spider 25 of radial ball piston motor constitutes the motor case that can rotate freely with

adapter sleeve

23,28,

floral disc

22,29; Floral disc is along being shaped on the assembly opening that the spoke steel wire is installed week; Roll kinetoplast, ball holder 27 constitute jointly stator with oil cylinder 24; Pintle 21 is supported whole HM Hydraulic Motor, is the wheel shaft that is contained in the wheel carrier prong of vehicle frame; Hydraulic oil from oil pump enters from the high pressure oilhole of pintle 21, and by joining oil jacket 26 pushing part bulb separation holder Roll kinetoplast promotion motor case rotation in turn, hydraulic oil is back to oil pump by flow cover, pintle oil outlet.

Axially bulb stopper motor radial dimension specific diameter is little to the bulb stopper motor, is more suitable for the mounting condition of bicycle, and referring to Fig. 3, axially bulb stopper motor shell 35, left and right sides cover plate 32 together rotate with rotor 34, and pintle 36 is that HM Hydraulic Motor is contained in the anchor shaft on the wheel crotch; Pintle 36 two ends have turnover oil ring 31 equipped oil pipes to connect oil pump, and motor shell 35 is radially established floral disc the spoke steel wire is installed.

The Hydraulic Pump of fixed speed ratio bicycle can adopt fix-displacement pump, can supply to adopt as gear type pump, plunger pump, several pump types of blade-type pump; Referring to Fig. 4 cycloidal pump, cycloidal pump is a kind of gear-within-gear pump, mainly form by the pump housing 41, pump cover 42, internal rotor 46, outer rotor 45, main shaft 43, needle bearing 44, establish limiting valve and boiler check valve in the cycloidal pump pump housing, establishing stream window is corresponding with the position of the oil inlet and outlet of HM Hydraulic Motor respectively with laminated oil zone corresponding to the oil suction district on the pump cover of front and back, and is too much catadioptric to avoid pipeline.Cycloidal pump is simple in structure, compact dimensions, noise is little, running is steady, and contour dimension is less under same displacement, and the installation of car load is succinct, relatively is suitable for bicycle and uses.

External gear pump, referring to Fig. 5, external gear pump mainly is made up of the pump housing 52,

pump cover

51,53, reaction gear 54, driven shaft gear 56, simple in structure, the pump cover and the pump housing are with the aluminum alloy manufacturing, the turnover oilhole is directly arranged on the pump housing and in the same direction, limited valve and boiler check valve in the pump housing can be simplified pipeline and install.

Gear-within-gear pump, referring to Fig. 6, gear-within-gear pump mainly is made up of main shaft 61, the oil-feed pump housing 62, the oil extraction pump housing 63 that has reverse link, external gear 64, inner gear 66.Advancing oil discharge outlet in same direction, can avoid pipeline catadioptric, be provided with limiting valve and boiler check valve in the pump housing, can simplify and purify pipeline, is a kind of pump type that is fit to bicycle.

Monopump, referring to Fig. 7, monopump mainly is made of the left and right sides pump cover 72,74 and the cylindrical shell stator 73 of the main shaft 71 that has rotor, symmetry, the monopump design discharge capacity 30ml/rev that the utility model adopts, pressure 10MP _a, cylindrical shell size 131 * 130, the about 2.7kg of weight, under same displacement, its contour dimension, weight and volume are minimum.

The driving system that hand-hydraulic servo variable displacement pump and constant displacement hydraulic motor are formed can make bicycle have speed changing function by manual control break oil pump capacity; Referring to Fig. 8, this pump is made up of to the plunger pump and the hand valve of control oil pump the axis profile shaft.When the cyclist passed through crank rotating spindle 81, oil cylinder 85 rotated thereupon, and oil cylinder whenever rotates a circle, the plunger round trip, and oil cylinder ceaselessly rotates, and hydraulic oil is constantly delivered to HM Hydraulic Motor in a steady stream.Because tilting frame 82 can change the angle of inclination under the action of servovalve 83, promptly pull moving servovalve, rely on main valve plug 84 to promote tilting frame, the plunger 86 in the oil cylinder is under the effect of tilting frame 82, the output that makes hydraulic oil changes with the size of tilting frame angle, the angle of tilting frame is big more, and discharge capacity is big more, and vice versa, when leaning angle is zero, discharge capacity is zero, therefore can spur servovalve by hand lever, makes bicycle reach speed change.

But the hydrostatic drive bicycle will reach the driving system of automatic control speed change servo apply hydraulic pressure stroking mechanism Hydraulic Pump and constant displacement hydraulic motor composition.Hydraulic servo stroking mechanism Hydraulic Pump is seen Fig. 9, and this pump is made up of to the hydraulic efficiency servo-valve of plunger pump and control oil pump the axis profile shaft.The servo guiding valve 93 of hydraulic efficiency servo-valve produces displacement automatically under the relativity of spring force and hydraulic coupling, thereby drive tilting frame and change the inclination angle, change oil pump capacity, make bicycle according to the variation of driving conditions such as uphill/downhill, top with the wind, reach automatic speed changing during the load weight size.

Above-mentioned pair of shaft Hydraulic Pump, rotary casing type HM Hydraulic Motor all can be selected for use for the utility model, Hydraulic Pump fixing optimum position on vehicle body is the center that the Hydraulic Pump main-shaft axis is placed the former installation axis of bicycle, the floral disc that connects spoke or solid web is made in the radially outer of rotary casing type hydraulic motor shell, wheel spoke or solid web are installed in the periphery of floral disc, make the rotary casing type HM Hydraulic Motor remain on the center of wheel, the two ends of HM Hydraulic Motor oil distribution shaft are fixed at the wheel carrier prong of vehicle frame; The oil inlet of HM Hydraulic Motor connects and connects equipped oil pipe with oil outlet pipe and be connected the Hydraulic Pump oil outlet pipe respectively and connect with oil return pipe and connect.

Claims

The hydrostatic drive bicycle comprises that pin is stepped on or hand two shaft Hydraulic Pumps, rotary casing type HM Hydraulic Motor, it is characterized in that Hydraulic Pump is fixing on vehicle frame, and crank is contained in the spindle end of Hydraulic Pump; The pintle two ends of HM Hydraulic Motor are fixed at the prong of vehicle wheel frame, and the radially outer of hydraulic motor shell is connected with floral disc, and floral disc week, HM Hydraulic Motor was contained in bicycle drive wheel center along wheel spoke is installed; The oil inlet of HM Hydraulic Motor connects and connects oil outlet pipe that equipped oil pipe is connected Hydraulic Pump respectively with oil outlet pipe and connect with oil return pipe and connect.