CN220816111U - Synchronous shunt motor with adjustable flow velocity - Google Patents

Abstract

The utility model discloses a synchronous shunt motor with adjustable flow speed, which belongs to the technical field of shunt motors and comprises a base, wherein the base is provided with a base; the top of the base is provided with a flow dividing component; the middle end of the split flow component is provided with a speed change component; the flow dividing assembly comprises a flow passage assembly and a gear assembly; the top of the base of the runner assembly is provided with the runner assembly; a group of gear assemblies are respectively arranged at the left end and the right end of the runner assembly; and the middle end of the flow passage component is provided with a speed changing component. Through the mode, the device inputs hydraulic oil through the liquid inlet, and shunts to the cavity of two sets of gear assemblies through the shunt pipeline, makes hydraulic oil promote the driving gear and the driven gear rotation of meshing, because two sets of gear assemblies link to each other through the speed change subassembly, makes the gear in the gear assembly keep certain transmission ratio when rotating to obtain stable flow rate ratio, and this transmission ratio is adjustable, is applicable to multiple condition.

Description

Synchronous shunt motor with adjustable flow velocity

Technical Field

The utility model relates to the technical field of shunt motors, in particular to a synchronous shunt motor with adjustable flow speed.

Background

When the load of a plurality of groups of hydraulic cylinders is used for working, if the load of each group of hydraulic cylinders is different, a synchronous shunt motor is needed to control the flow shunted to each group of hydraulic cylinders, so that the movement speed of each group of hydraulic cylinders is kept stable; in most cases, synchronous shunt motors are used to control synchronous motion between sets of hydraulic cylinders.

The utility model patent with the publication number of CN207634427U discloses a gear synchronous shunt motor, which is provided with two groups of gear cavities, and hydraulic oil is conveyed from an oil inlet to an oil outlet through rotation of an internal gear of the cavities; and the upper gears in the two groups of cavities are connected in series through cylindrical pins so as to keep the rotation speed consistent, thereby keeping the flow consistent.

However, said utility model can only keep the two groups of hydraulic cylinders to move synchronously, and can not change the flow ratio between two groups of hydraulic cylinders, and can not be used in the occasion where different movement speeds are needed.

Based on the above, the present utility model designs a synchronous shunt motor with adjustable flow rate to solve the above problems.

Disclosure of utility model

In view of the above-mentioned shortcomings of the prior art, the present utility model provides a synchronous shunt motor with adjustable flow rate.

In order to achieve the above purpose, the utility model is realized by the following technical scheme:

a synchronous shunt motor with adjustable flow rate, comprising a base;

A flow dividing assembly for dividing hydraulic oil is arranged at the top of the base;

the middle end of the split flow assembly is provided with a speed changing assembly for adjusting split flow speed;

The flow dividing assembly comprises a flow passage assembly and a gear assembly; the top of the base of the runner assembly is provided with the runner assembly; a group of gear assemblies are respectively arranged at the left end and the right end of the runner assembly; and the middle end of the flow passage component is provided with a speed changing component.

Further, the runner assembly comprises a shell, a liquid inlet, a liquid outlet and a diversion pipeline; the top of the base is fixedly connected with the bottom of the shell; a liquid inlet is formed in the side wall of the rear end of the shell; a shunt pipeline is arranged in the side wall of the shell; the middle end of the split flow pipeline is connected with the liquid inlet, and the two ends of the split flow pipeline are respectively connected with the cavity input ends of the left and right groups of gear components; two groups of liquid outlets are formed in the side wall of the front end of the shell and are respectively connected with the cavity output ends of the left and right groups of gear components; the middle end of the shell is internally provided with a speed changing component.

Further, the gear assembly comprises a gear cavity, a sealing cover, a driving gear, a driven gear, a driving central shaft and a driven central shaft; the left end and the right end of the shell are provided with gear cavities; the opening end of the gear cavity is fixedly connected with the side wall of the sealing cover; the driving gear and the driven gear are meshed with each other, and both the driving gear and the driven gear are positioned in a cavity formed by connecting the gear cavity with the sealing cover; the left side wall and the right side wall of the driving gear and the driven gear are respectively in contact connection with the inner wall of the inner end of the gear cavity and the inner wall of the inner end of the sealing cover; the tooth tops of the driving gear and the driven gear are in fit rolling connection with the inner wall of the gear cavity; the inner wall of the shaft hole of the driven gear is fixedly connected with the side wall of the driven central shaft, and two ends of the driven central shaft are respectively and rotatably connected with the inner wall of the inner end of the gear cavity and the inner wall of the sealing cover; the inner wall of the shaft hole of the driving gear is fixedly connected with the driving central shaft, one end of the driving central shaft is rotationally connected with the inner wall of the inner end of the sealing cover, and the other end of the driving central shaft penetrates through the shell and is fixedly connected with the rotating shaft end of the speed changing assembly.

Furthermore, the opening end of the gear cavity is provided with a circle of protruding thin wall, the side wall of the sealing cover is provided with a groove corresponding to the protruding thin wall of the gear cavity in shape, and the gear cavity is connected with the sealing cover in a plugging manner in the installation process.

Further, the driving gear and the driven gear are vertically arranged.

Further, the speed changing assembly comprises a speed changing assembly cavity, a hydraulic cylinder groove, a fixed conical wheel, a movable conical wheel, a push block, a hydraulic cylinder and a steel belt; the middle end of the front side wall of the shell is provided with a speed changing component cavity; the upper end and the lower end of the front side wall of the shell are respectively provided with a group of hydraulic cylinder grooves; the two groups of hydraulic cylinder grooves are respectively positioned at the left side and the right side of the speed changing assembly cavity, and one end of each hydraulic cylinder groove is connected with the speed changing assembly cavity; the hydraulic cylinder is embedded and connected on the inner wall of the cavity of the speed changing assembly, and a liquid supply port of the hydraulic cylinder faces to the front end; the output end of the hydraulic cylinder is fixedly connected with the side wall of the pushing block; two groups of fixed cone wheels and two groups of movable cone wheels are respectively arranged in the cavity of the speed changing assembly; one end of the fixed conical wheel is a rotating shaft, the other end of the fixed conical wheel is a cylindrical straight cylinder, and one end of the movable conical wheel is a rotating shaft, and the other end of the movable conical wheel is a cylindrical sleeve; the rotating shaft end of the fixed conical wheel penetrates through the inner wall of the cavity of the speed changing assembly and is fixedly connected with one end of the driving central shaft, and the outer wall of the straight cylinder end of the fixed conical wheel is in fit sliding connection with the inner wall of the sleeve end of the movable conical wheel; the rotating shaft end of the movable conical wheel is rotationally connected with the side wall of the pushing block; the steel belt is in transmission connection with the fixed cone pulley and the movable cone pulley.

Furthermore, the opening end of the speed changing assembly cavity is fixedly connected with an arc-shaped protective cover.

Further, the angle of the V-shaped pulley groove formed by the fixed conical wheel and the movable conical wheel is 34 degrees.

Advantageous effects

According to the utility model, hydraulic oil is input through the liquid inlet and is split into the cavities of the two groups of gear assemblies through the split pipeline, so that the hydraulic oil pushes the meshed driving gears and driven gears to rotate, and as one end of the two groups of driving central shafts is respectively connected with the left rotating shaft end and the right rotating shaft end of the speed changing assembly, the two groups of driving gears keep a certain transmission ratio during rotation; since the amount of hydraulic oil pushed out by the gears is constant every time they rotate one revolution, a stable flow rate ratio can be obtained by maintaining the transmission ratio of the two sets of driving gears, and the transmission ratio can be adjusted, which can be applied to various situations.

According to the utility model, the fixed cone pulley and the movable cone pulley are spliced into the V-shaped pulley groove, and the steel belt is used for connecting the upper group of fixed cone pulley and the lower group of fixed cone pulley with the movable cone pulley; the hydraulic cylinder pushes the movable conical wheel to move left and right, so that the width of the V-shaped groove of the pulley is changed; when the two groups of hydraulic cylinders push in the same direction, the rotating radiuses at the two ends of the steel belt are changed, so that the transmission ratio between the two groups of driving gears is changed, the transmission ratio can be switched smoothly in real time, and the flow velocity at the two sides is changed; when the two groups of hydraulic cylinders are pushed in opposite directions, the two ends of the steel belt can be separated, so that the two sides can work independently, and the two sides can be separated to work independently when one side needs braking or fails by matching with the shutoff valve.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is evident that the drawings in the following description are only some embodiments of the present utility model and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.

FIG. 1 is a perspective view of a main body structure of a synchronous split-flow motor with adjustable flow rate according to the present utility model;

FIG. 2 is a front view of a synchronous split motor with adjustable flow rate according to the present utility model;

FIG. 3 is a left side view of a flow rate adjustable synchronous split motor configuration of the present utility model;

FIG. 4 is a perspective view showing the internal structure of a synchronous split-flow motor with adjustable flow rate according to the present utility model;

FIG. 5 is a cross-sectional view taken along the B-B direction of FIG. 3;

FIG. 6 is a cross-sectional view taken along the direction A-A of FIG. 3;

Fig. 7 is an enlarged view at C in fig. 5.

Reference numerals in the drawings represent respectively:

1. Base 2, flow divider assembly 21, flow passage assembly 211, housing 212, liquid inlet 213, liquid outlet 214, flow divider conduit 22, gear assembly 221, gear cavity 222, seal cover 223, drive gear 224, driven gear 225, drive center shaft 226, driven center shaft 3, speed changing assembly 31, speed changing assembly cavity 32, hydraulic cylinder groove 33, stationary cone pulley 34, moving cone pulley 35, push block 36, hydraulic cylinder 37, steel belt.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model is further described below with reference to examples.

Example 1

Referring to fig. 1-7 of the specification, a synchronous shunt motor with adjustable flow rate comprises a base 1;

The top of the base 1 is provided with a flow dividing component 2 for dividing hydraulic oil;

The middle end of the split flow component 2 is provided with a speed changing component 3 for adjusting split flow rate;

The flow dividing assembly 2 comprises a flow passage assembly 21 and a gear assembly 22; the top of the base 1 of the runner assembly 21 is provided with the runner assembly 21; a group of gear assemblies 22 are respectively arranged at the left end and the right end of the runner assembly 21; the middle end of the runner assembly 21 is provided with a speed changing assembly 3.

The runner assembly 21 comprises a housing 211, a liquid inlet 212, a liquid outlet 213 and a split flow pipe 214; the top of the base 1 is fixedly connected with the bottom of the shell 211; a liquid inlet 212 is formed in the side wall of the rear end of the shell 211; a shunt pipeline 214 is arranged in the side wall of the shell 211; the middle end of the split flow pipeline 214 is connected with the liquid inlet 212, and the two ends of the split flow pipeline 214 are respectively connected with the cavity input ends of the left and right groups of gear assemblies 22; two groups of liquid outlets 213 are formed on the side wall of the front end of the housing 211 and are respectively connected with the cavity output ends of the left and right groups of gear assemblies 22; the middle end of the housing 211 is internally mounted with the shift assembly 3.

The gear assembly 22 includes a gear cavity 221, a seal cover 222, a driving gear 223, a driven gear 224, a driving central shaft 225, and a driven central shaft 226; the left and right ends of the housing 211 are provided with gear cavities 221; the open end of the gear cavity 221 is fixedly connected with the side wall of the sealing cover 222; the driving gear 223 and the driven gear 224 are engaged with each other, and both are positioned in a cavity formed by connecting the gear cavity 221 and the sealing cover 222; the left and right side walls of the driving gear 223 and the driven gear 224 are respectively in contact connection with the inner wall of the inner end of the gear cavity 221 and the inner wall of the inner end of the sealing cover 222; the tooth tops of the driving gear 223 and the driven gear 224 are in fit rolling connection with the inner wall of the gear cavity 221; the inner wall of the shaft hole of the driven gear 224 is fixedly connected with the side wall of the driven central shaft 226, and two ends of the driven central shaft 226 are respectively and rotatably connected with the inner wall of the inner end of the gear cavity 221 and the inner wall of the inner end of the sealing cover 222; the inner wall of the shaft hole of the driving gear 223 is fixedly connected with the driving central shaft 225, one end of the driving central shaft 225 is rotatably connected with the inner wall of the inner end of the sealing cover 222, and the other end of the driving central shaft 225 penetrates through the shell 211 to be fixedly connected with the rotating shaft end of the speed changing component 3.

Preferably, the opening end of the gear cavity 221 is provided with a circle of protruding thin wall, the side wall of the sealing cover 222 is provided with a groove corresponding to the protruding thin wall of the gear cavity 221, and the gear cavity 221 and the sealing cover 222 are connected in a plugging manner in the installation process.

Preferably, the driving gear 223 is vertically installed with the driven gear 224.

When the device works, hydraulic oil is input into a liquid inlet 212 on a shell 211 of a split-flow assembly 2 on a base 1, flows into a split-flow pipeline 214 from the liquid inlet 212, and is respectively conveyed into a sealing cavity formed by connecting gear cavities 221 of a left gear assembly 22 and a right gear assembly 22 with a sealing cover 222; the driving gear 223 and the driven gear 224 in the cavity divide the cavity into two mutually isolated areas, hydraulic oil pushes the driving gear 223 and the driven gear 224 to rotate through the driving central shaft 225 and the driven central shaft 226 respectively, so that the hydraulic oil flows from the input end to the output end of the cavity, and then flows out from the liquid outlet 213 to finish the flow division; in the rotation process, one ends of the two sets of driving central shafts 225 are respectively connected with the left rotating shaft end and the right rotating shaft end of the speed changing component 3, so that the driving gears 223 on the two sets of driving central shafts 225 always keep a certain transmission ratio.

The device inputs hydraulic oil through the liquid inlet 212, and the hydraulic oil is split into the cavities of the two groups of gear assemblies 22 through the split pipeline 214, so that the hydraulic oil pushes the meshed driving gears 223 and driven gears 224 to rotate, and as one end of the two groups of driving central shafts 225 is respectively connected with the left rotating shaft end and the right rotating shaft end of the speed changing assembly 3, the two groups of driving gears 223 keep a certain transmission ratio during rotation; since the amount of hydraulic oil pushed out by the gears is constant every one rotation, by maintaining the gear ratio of the two sets of driving gears 223, a stable flow rate ratio can be obtained, and the gear ratio can be adjusted, which can be applied to various situations.

The speed changing assembly 3 comprises a speed changing assembly cavity 31, a hydraulic cylinder groove 32, a fixed conical wheel 33, a movable conical wheel 34, a push block 35, a hydraulic cylinder 36 and a steel belt 37; the middle end of the front side wall of the housing 211 is provided with a speed changing component cavity 31; the upper and lower ends of the front side wall of the housing 211 are respectively provided with a group of hydraulic cylinder grooves 32; the two groups of hydraulic cylinder grooves 32 are respectively positioned at the left side and the right side of the speed changing assembly cavity 31, and one end of each hydraulic cylinder groove 32 is connected with the speed changing assembly cavity 31; the hydraulic cylinder 36 is embedded and connected on the inner wall of the speed changing assembly cavity 31, and a liquid supply port of the hydraulic cylinder 36 faces to the front end; the output end of the hydraulic cylinder 36 is fixedly connected with the side wall of the push block 35; two groups of fixed cone wheels 33 and movable cone wheels 34 are respectively positioned in the speed changing assembly cavity 31; one end of the fixed conical wheel 33 is a rotating shaft, the other end of the fixed conical wheel is a cylindrical straight cylinder, and one end of the movable conical wheel 34 is a rotating shaft, and the other end of the movable conical wheel is a cylindrical sleeve; the rotating shaft end of the fixed cone wheel 33 passes through the inner wall of the speed changing assembly cavity 31 and is fixedly connected with one end of the driving central shaft 225, and the outer wall of the straight cylinder end of the fixed cone wheel 33 is in fit sliding connection with the inner wall of the sleeve end of the movable cone wheel 34; the rotating shaft end of the movable conical wheel 34 is rotationally connected with the side wall of the push block 35; the steel belt 37 is in driving connection with the fixed cone pulley 33 and the moving cone pulley 34.

Preferably, the open end of the shift assembly cavity 31 is fixedly connected with an arcuate protective cover.

Preferably, the angle of the V-shaped pulley groove formed by the fixed cone pulley 33 and the movable cone pulley 34 is 34 degrees.

When the device works, hydraulic oil is input from the liquid inlet 212 of the runner assembly 21 of the flow dividing assembly 2, enters the gear cavity 221 through the flow dividing pipeline 214 and pushes the driving gear 223 and the driven gear 224 to rotate, and the driving gear 223 drives the driving central shaft 225 to rotate; one end of the driving center shaft 225 is connected with the rotating shaft end of the fixed cone wheel 33 in the speed changing assembly cavity 31 of the speed changing assembly 3, and drives the fixed cone wheel 33 to rotate, so that the steel belt 37 is driven to move; because the two groups of fixed cone pulleys 33 are connected with the driving central shaft 225, and the two groups of fixed cone pulleys 33 are driven by the steel belt 37 to have the same rotating speed, the rotating speeds of the two groups of driving gears 223 are the same; when the rotation speed ratio needs to be adjusted, the hydraulic pipeline of the hydraulic cylinder 36 is connected with the hydraulic cylinder 36 through the hydraulic cylinder groove 32, and the push block 35 can be pushed to move by controlling the hydraulic cylinder 36, so that the movable conical wheel 34 moves, the width of a V-shaped pulley groove formed by the fixed conical wheel 33 and the movable conical wheel 34 is changed, and the rotation radius of two ends of the steel belt 37 is changed to adjust the transmission ratio; when both sets of hydraulic cylinders 36 are pushed leftwards, both sets of moving cone wheels 34 are moved leftwards, the distance between the fixed cone wheel 33 at the upper end and the moving cone wheel 34 is shortened, and the distance between the fixed cone wheel 33 at the lower end and the moving cone wheel 34 is lengthened; the upper end of the steel belt 37 is extruded, and slides outwards along the V-shaped pulley groove, so that the rotation radius is increased; the lower end of the steel belt 37 is contracted inwards along the V-shaped pulley groove, and the rotation radius is reduced; the transmission ratio between the two is changed, and the rotation speed of the left driving gear 223 is slower than that of the right driving gear 223, so that the flow rate of hydraulic oil is changed; conversely, the two sets of hydraulic cylinders 36 are pushed to the right, so that the rotation speed of the right driving gear 223 is slower than that of the left driving gear 223; when the liquid supply at one end is required to be carried out independently, the two groups of air cylinders can be moved oppositely, and when the upper V-shaped groove and the lower V-shaped groove are widened simultaneously, the steel belt 37 cannot be tensioned, so that the two groups of driving gears 223 are not connected with each other, and can work independently.

The device is spliced into a V-shaped pulley groove through the fixed conical wheels 33 and the movable conical wheels 34, and the upper and lower groups of the fixed conical wheels 33 and the movable conical wheels 34 are connected by using the steel belt 37, and as the two groups of the fixed conical wheels 33 are connected with the driving central shaft 225 and the driving central shaft 225 is fixedly provided with the driving gears 223, a transmission relation exists between the two groups of the driving gears 223, a certain transmission ratio can be maintained, and the split flow is completed; the hydraulic cylinder 36 pushes the movable conical wheel 34 to move left and right, so that the width of the V-shaped groove of the pulley is changed; when the two groups of hydraulic cylinders 36 are pushed in the same direction, the rotation radius of the two ends of the steel belt 37 is changed, so that the transmission ratio between the two groups of driving gears 223 is changed, the transmission ratio can be switched smoothly in real time, and the flow velocity of the two sides is changed; when the two sets of hydraulic cylinders 36 are pushed oppositely, the two ends of the steel belt 37 can be separated, so that the two sides can work independently, and the two sides can be separated to work independently when one side needs braking or fails by matching with the shutoff valve.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (8)

1. The utility model provides a synchronous shunt motor with adjustable velocity of flow, includes base (1), its characterized in that:

A flow dividing assembly (2) for dividing hydraulic oil is arranged at the top of the base (1);

The middle end of the split flow component (2) is provided with a speed changing component (3) for adjusting split flow speed;

the flow distribution assembly (2) comprises a flow passage assembly (21) and a gear assembly (22); the top of the base (1) of the runner assembly (21) is provided with the runner assembly (21); a group of gear assemblies (22) are respectively arranged at the left end and the right end of the runner assembly (21); the middle end of the runner assembly (21) is provided with a speed changing assembly (3).

2. The flow rate adjustable synchronous shunt motor according to claim 1, wherein said flow path assembly (21) comprises a housing (211), a liquid inlet (212), a liquid outlet (213) and a shunt tube (214); the top of the base (1) is fixedly connected with the bottom of the shell (211); a liquid inlet (212) is formed in the side wall of the rear end of the shell (211); a shunt pipeline (214) is arranged in the side wall of the shell (211); the middle end of the split flow pipeline (214) is connected with the liquid inlet (212), and the two ends of the split flow pipeline (214) are respectively connected with the cavity input ends of the left and right groups of gear assemblies (22); two groups of liquid outlets (213) are formed in the side wall of the front end of the shell (211), and are respectively connected with the cavity output ends of the left and right groups of gear assemblies (22); the middle end of the shell (211) is internally provided with a speed changing component (3).

3. The adjustable flow rate synchronous shunt motor of claim 2, wherein said gear assembly (22) comprises a gear cavity (221), a seal cover (222), a drive gear (223), a driven gear (224), a drive center shaft (225), and a driven center shaft (226); the left end and the right end of the shell (211) are provided with gear cavities (221); the opening end of the gear cavity (221) is fixedly connected with the side wall of the sealing cover (222); the driving gear (223) and the driven gear (224) are meshed with each other, and are both positioned in a cavity formed by connecting the gear cavity (221) and the sealing cover (222); the left side wall and the right side wall of the driving gear (223) and the driven gear (224) are respectively in contact connection with the inner end inner wall of the gear cavity (221) and the inner end inner wall of the sealing cover (222); the tooth tops of the driving gear (223) and the driven gear (224) are in fit rolling connection with the inner wall of the gear cavity (221); the inner wall of the shaft hole of the driven gear (224) is fixedly connected with the side wall of the driven central shaft (226), and two ends of the driven central shaft (226) are respectively and rotatably connected with the inner wall of the gear cavity (221) and the inner wall of the sealing cover (222); the inner wall of the shaft hole of the driving gear (223) is fixedly connected with the driving central shaft (225), one end of the driving central shaft (225) is rotationally connected with the inner wall of the inner end of the sealing cover (222), and the other end of the driving central shaft (225) penetrates through the shell (211) to be fixedly connected with the rotating shaft end of the speed changing assembly (3).

4. A synchronous shunt motor with adjustable flow rate according to claim 3, characterized in that the open end of the gear cavity (221) is provided with a circle of protruding thin wall, the side wall of the sealing cover (222) is provided with a groove corresponding to the protruding thin wall of the gear cavity (221), and the gear cavity (221) is connected with the sealing cover (222) in a plugging manner in the installation process.

5. The adjustable flow rate synchronous shunt motor according to claim 4, wherein said driving gear (223) is mounted vertically with a driven gear (224).

6. The adjustable flow synchronous shunt motor of claim 5 wherein said speed change assembly (3) comprises a speed change assembly cavity (31), a hydraulic cylinder slot (32), a fixed cone wheel (33), a moving cone wheel (34), a push block (35), a hydraulic cylinder (36) and a steel belt (37); the middle end of the front side wall of the shell (211) is provided with a speed changing component cavity (31); the upper end and the lower end of the front side wall of the shell (211) are respectively provided with a group of hydraulic cylinder grooves (32); the two groups of hydraulic cylinder grooves (32) are respectively positioned at the left side and the right side of the speed changing assembly cavity (31), and one end of each hydraulic cylinder groove (32) is connected with the speed changing assembly cavity (31); the hydraulic cylinder (36) is embedded and connected on the inner wall of the speed changing assembly cavity (31), and a liquid supply port of the hydraulic cylinder (36) faces to the front end; the output end of the hydraulic cylinder (36) is fixedly connected with the side wall of the pushing block (35); two groups of fixed cone wheels (33) and two groups of movable cone wheels (34) are respectively arranged in the speed changing assembly cavity (31); one end of the fixed conical wheel (33) is a rotating shaft, the other end of the fixed conical wheel is a cylindrical straight cylinder, and one end of the movable conical wheel (34) is a rotating shaft, and the other end of the movable conical wheel is a cylindrical sleeve; the rotating shaft end of the fixed conical wheel (33) penetrates through the inner wall of the speed changing assembly cavity (31) and is fixedly connected with one end of the driving central shaft (225), and the outer wall of the straight cylinder end of the fixed conical wheel (33) is in fit sliding connection with the inner wall of the sleeve end of the movable conical wheel (34); the rotating shaft end of the movable conical wheel (34) is rotationally connected with the side wall of the pushing block (35); the steel belt (37) is in transmission connection with the fixed cone pulley (33) and the movable cone pulley (34).

7. The adjustable flow synchronous shunt motor according to claim 6, wherein an arc-shaped protecting cover is fixedly connected to an opening end of said speed changing assembly cavity (31).

8. The adjustable flow synchronous shunt motor of claim 7, wherein said fixed cone wheel (33) and moving cone wheel (34) form a "V" pulley groove angle of 34 degrees.