CN217873235U

CN217873235U - Hydraulic pump for same-cavity unequal-volume machine control reciprocating vehicle

Info

Publication number: CN217873235U
Application number: CN202221954596.5U
Authority: CN
Inventors: 宋杰; 陈晓明
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-07-27
Filing date: 2022-07-27
Publication date: 2022-11-22
Anticipated expiration: 2032-07-27

Abstract

The utility model relates to a truck power field specifically is a hydraulic pump for reciprocating engine control with different volume machines in same cavity. The bottom of the pump body is provided with the oil pan, oil pan bottom central authorities are fixed with the spring housing, the pump body bottom, run through in proper order on oil pan and the spring housing and sliding connection has piston push rod, the cover is equipped with first reset spring on the body of rod that piston push rod is located the spring housing, it is provided with along axially sliding's piston board just to be located piston push rod top in the pump body, piston board top is the high pressure chamber, the below is the low pressure chamber, the oil feed passageway that link up from top to bottom is seted up at piston board middle part, piston board bottom just is located and sets up the promotion groove that agrees with piston push rod top shape around the oil feed passageway, the low pressure chamber side is provided with into oil pipe, the high pressure chamber top is connected with first oil pipe, piston push rod's bottom connection has unable adjustment base. The engine has the advantages of reducing the output power just needed by the original engine of the truck, achieving the effects of energy conservation and environmental protection, along with simple structure and great saving of the transportation cost.

Description

Hydraulic pump for same-cavity unequal-volume machine control reciprocating vehicle

Technical Field

The utility model relates to a truck power field specifically is a hydraulic pump for reciprocating engine control with different volume machines in same cavity.

Background

The hydraulic pump is a power element of a hydraulic system, and is an element which is driven by an engine or an electric motor, sucks oil from a hydraulic oil tank, forms pressure oil, discharges the pressure oil and sends the pressure oil to an execution element. At present, a heavy or large-tonnage load-carrying motor vehicle is a main transport tool for cargo transportation, and because the weight of the loaded cargo is heavy, if the motor vehicle is driven by only depending on an engine, the output power is large, the fuel oil consumption is high, and the environment is polluted while the energy is consumed.

In the existing gravity conversion driving force system for the load-carrying vehicle with the application number of 202020188904, in the walking process of the load-carrying vehicle, an axle provided with an eccentric wheel hub reciprocates up and down, the displacement is small, when the axle moves upwards, a piston rod of a corresponding piston hydraulic pump arranged on a chassis of the load-carrying vehicle is touched, so that the piston rod moves upwards to force internal hydraulic oil to be compressed to generate pressure, the hydraulic oil enters a hydraulic balance tank through a high-pressure oil pipe, after being pressurized again through the hydraulic balance tank, the hydraulic oil in the hydraulic balance tank flows to a hydraulic motor through the high-pressure oil pipe after reaching a set value, and the hydraulic motor drives a gear in a drive axle gear box to rotate so as to drive the axle to rotate; the gravity shock wave conduction when the piston hydraulic pump receives the vibration of the truck is formed, huge pressure intensity and sufficient oil flow are formed, and a hydraulic motor is driven. The piston rod of the piston hydraulic pump in application number 202020188904 is located above the axle and is not connected with the axle, and the axle is likely to be incapable of keeping consistent movement with the axle in eccentric reciprocating motion, so that the piston cannot reach accurate stroke amount, and the oil output is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem and providing a hydraulic pump for a same-cavity unequal-volume machine control reciprocating vehicle, which can reduce power output and is energy-saving and environment-friendly.

The utility model provides a problem, the technical scheme who adopts is:

the utility model provides a with not volume machine accuse reciprocating vehicle hydraulic pump that varies of cavity, which comprises a pump body, the bottom of the pump body is provided with the oil pan, oil pan bottom central authorities are fixed with the spring housing, pump body bottom, run through in proper order and sliding connection has piston push rod on oil pan and the spring housing, the cover is equipped with first reset spring on the body of rod that piston push rod is located the spring housing, just it is provided with along axially sliding's piston plate to be located piston push rod top in the pump body, piston plate top is the high pressure chamber, the below is the low pressure chamber, the oil feed passageway that link up from top to bottom is seted up at piston plate middle part, piston plate bottom just is located sets up the pushing groove that agrees with piston push rod top shape around the oil feed passageway, low pressure chamber side is provided with into oil pipe, high pressure chamber top is connected with first oil pipe, the bottom of piston push rod is connected with unable adjustment base.

Adopt above-mentioned technical scheme the utility model discloses, compare with prior art, its outstanding characteristics are:

piston push rod passes through unable adjustment base to be fixed in the axletree top of doing eccentric motion, when the axletree shifts up, it goes upward to drive piston push rod, first reset spring compression, piston push rod top stretches into the promotion groove and plugs up the oil feed passageway, and drive the piston board and go upward, pressure grow in the high-pressure chamber, hydraulic oil flows out by first play oil pipe, the pressure of low-pressure chamber diminishes and inhales hydraulic oil through advancing oil pipe, when the axletree moves down, it is down to drive piston push rod, first reset spring can carry out the shock attenuation, the working influences the moving distance of axletree and then influences piston push rod's stroke distance according to the change of whole car weight and speed of a motor vehicle, different with traditional hydraulic pump, non-fixed high pressure oil flow has been formed in whole the same cavity, it all has high efficiency to have guaranteed that the hydraulic pump under different running conditions at the vehicle, and unable adjustment base more accurate messenger's piston push rod stroke reaches effectual high-pressure oil flow, this hydraulic pump is exclusively used in heavy multiaxis vehicle.

Preferably, the present invention further provides:

a first sealing ring is arranged between the piston push rod and the bottom of the pump body.

And a second sealing ring is arranged between the piston plate and the pump body.

The inner part of the oil inlet pipe is provided with a first stepped hole with an inner layer and an outer layer, a first non-return steel ball is arranged in the inner layer of the first stepped hole and at a position abutting against the outer layer of the first stepped hole, the diameter of the first non-return steel ball is larger than that of the outer layer of the first stepped hole, and a second reset spring is arranged between the first non-return steel ball and the pump body.

The top of the first oil outlet pipe is provided with an oil cover, the bottom of the top surface of the oil cover is provided with a lifting check valve extending into the first oil outlet pipe, and the side surface of the oil cover is provided with a horizontal second oil outlet pipe.

The inside of the second oil outlet pipe is provided with an inner layer and an outer layer of second stepped holes, the outlet end of the outer layer of the second stepped hole is of an internal thread structure, a second check steel ball is arranged in the outer layer of the second stepped hole and at a position which is abutted against the second stepped Kong Naceng, the diameter of the second check steel ball is larger than that of the inner layer of the second stepped hole, and a third reset spring is arranged between the second check steel ball and the internal thread structure.

The top of the pump body is provided with a mounting seat.

Drawings

Fig. 1 is a schematic view of a main sectional structure of a hydraulic pump for a reciprocating vehicle controlled by unequal quantities in the same chamber according to an embodiment of the present invention;

fig. 2 is a schematic top sectional view illustrating an oil inlet pipe of a hydraulic pump for a reciprocating vehicle controlled by unequal amounts in the same chamber according to an embodiment of the present invention;

fig. 3 is a schematic view of a second oil outlet in a hydraulic pump for a reciprocating vehicle with a same-chamber, non-equivalent machine control according to an embodiment of the present invention;

labeled in the figure as: the oil pump comprises a pump body 1, an oil pan 2, a spring sleeve 3, a piston push rod 4, a first return spring 5, a piston plate 6, an oil inlet channel 7, an oil inlet pipe 8, a first oil outlet pipe 9, a first sealing ring 10, a second sealing ring 11, a first stepped hole 12, a first check steel ball 13, a second return spring 14, an oil cover 15, a lifting check valve 16, a second stepped hole 17, a second check steel ball 18, a third return spring 19, a mounting seat 20, a fixed base 21 and a second oil outlet pipe 22.

Detailed Description

The invention will be further described with reference to the following examples, which are intended only for a better understanding of the invention, and therefore, the examples do not limit the scope of the invention.

The utility model provides a with not equivalent machine accuse hydraulic pump for reciprocating vehicle of cavity, which comprises a pump body 1, the bottom of the pump body 1 is provided with oil pan 2, oil pan 2 bottom central authorities are fixed with

spring housing

3, 1 bottom of the pump body, run through and sliding connection has piston push rod 4 on oil pan 2 and the spring housing 3 in proper order, piston push rod 4 is located and is equipped with first reset spring 5 on the body of rod of spring housing 3, it is provided with along axially sliding piston plate 6 to be located piston push rod 4 top in the pump body 1, piston plate 6 top is the high pressure chamber, the below is the low pressure chamber, piston plate 6 middle part is seted up the oil feed passageway 7 that link up from top to bottom, piston plate 6 bottom just is located and sets up the promotion groove that agrees with piston push rod 4 top shape around the oil feed passageway, the low pressure chamber side is provided with into oil pipe 8, the high pressure chamber top is connected with first oil pipe 9, the bottom of piston push rod 4 is connected with unable adjustment base 21, unable adjustment base 21 is fixed mutually through bolt, the axletree drives unable adjustment base 21 and then drives piston push rod 4 motion.

A first sealing ring 10 is arranged between the piston push rod 4 and the bottom of the pump body 1.

A second seal ring 11 is arranged between the piston plate 6 and the pump body 1.

The inside first step hole 12 that is two-layer inside and outside of inlet tube 8, be provided with first non return steel ball 13 in the first step hole 12 inlayer and on the position that offsets with first step hole 12 skin, the diameter of first non return steel ball 13 is greater than the diameter of first step hole 12 skin, be provided with second reset spring 14 between first non return steel ball 13 and the pump body 1, it makes hydraulic oil can inject to promote first non return steel ball 13 compression second reset spring 14 when 8 oil feedings of inlet tube, second reset spring 14 resets first non return steel ball 13 after the completion of the injection and blocks up the skin and prevent the hydraulic oil backward flow, 8 outer ends of inlet tube are used for sealing connection for the external screw thread structure.

An oil cover 15 is arranged at the top of the first oil outlet pipe 9, a lifting check valve 16 extending into the first oil outlet pipe 9 is arranged at the bottom of the top surface of the oil cover 15, a horizontal second oil outlet pipe 22 is arranged on the side surface of the oil cover 15, and the lifting check valve 16 prevents hydraulic oil from flowing backwards.

Inside two-layer inside and outside second step hole 17 that is of second oil pipe 22, the exit end of second step hole 17 outer layer is internal thread structure, be provided with second non return steel ball 18 in the second step hole 17 outer layer and on the position that offsets with second step hole 17 inner layer, the diameter of second non return steel ball 18 is greater than the diameter of second step hole 17 inner layer, be provided with third reset spring 19 between second non return steel ball 18 and the internal thread structure, promote second non return steel ball 18 compression third reset spring 19 and make hydraulic oil can flow out during the oil production, third reset spring 19 resets second non return steel ball 18 after the oil production and blocks up the inlayer and prevent the hydraulic oil backward flow, second oil pipe 22 links to each other with the hydraulic balance jar through high pressure fuel pipe, prevent the hydraulic oil refluence through the double-layer non return.

The top of the pump body 1 is provided with a mounting seat 20, and the pump body 1 is fixed on a truck chassis through the mounting seat 20.

The piston push rod 4 is fixed above an axle doing eccentric motion through the fixed base 21, when the axle moves upwards, the piston push rod 4 is driven to move upwards, the first reset spring 5 is compressed, the top of the piston push rod 4 extends into the pushing groove to block the oil inlet channel 7 and drive the piston plate 6 to move upwards, the pressure in the high-pressure cavity is increased, hydraulic oil flows out from the first oil outlet pipe 9, the pressure in the low-pressure cavity is reduced to suck the hydraulic oil through the oil inlet pipe 8, when the axle moves downwards, the piston push rod 4 is driven to move downwards, the first reset spring 5 can absorb shock, the moving distance of the axle is influenced according to the change of the total vehicle weight and the vehicle speed during working, and further the stroke distance of the piston push rod 4 is influenced, different from the traditional hydraulic pump, the non-fixed high-pressure oil outlet flow is formed in the integrally same cavity, the hydraulic pump is guaranteed to have high work efficiency under different running conditions of the vehicle, the stroke of the piston push rod 4 can reach effective high-pressure oil flow more accurately through the fixed base 21, the hydraulic pump is specially used for heavy-duty multi-axle vehicles, the drive of an engine is cancelled, the energy-saving and environment protection effect is achieved, the hydraulic pump is simple in structure, and the transportation cost is greatly saved.

The above description is only a preferred and practical embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent variations made by using the contents of the specification and the drawings are included in the scope of the present invention.

Claims

1. The utility model provides a with equal chamber not quantitative machine accuse hydraulic pump for reciprocating vehicle which characterized in that: the oil pump comprises a pump body, the bottom of the pump body is provided with the oil pan, oil pan bottom central authorities are fixed with the spring housing, pump body bottom, run through in proper order and sliding connection has piston push rod on oil pan and the spring housing, the cover is equipped with first reset spring on the body of rod that piston push rod is located the spring housing, just be located piston push rod top in the pump body and be provided with along endwise slip's piston plate, the piston plate top is the high pressure chamber, the below is the low pressure chamber, the oil feed passageway that link up about having seted up is seted up at piston plate middle part, piston plate bottom just is located and sets up the promotion groove that agrees with mutually with piston push rod top shape around the oil feed passageway, low pressure chamber side is provided with into oil pipe, the high pressure chamber top is connected with first oil pipe, piston push rod's bottom is connected with unable adjustment base.

2. The hydraulic pump for isobaric chamber non-proportional mechanically controlled reciprocating vehicle of claim 1, characterized in that: a first sealing ring is arranged between the piston push rod and the bottom of the pump body.

3. The hydraulic pump for the isobaric chamber non-volume machine controlled reciprocating vehicle according to claim 1, characterized in that: and a second sealing ring is arranged between the piston plate and the pump body.

4. The hydraulic pump for the isobaric chamber non-volume machine controlled reciprocating vehicle according to claim 1, characterized in that: the inner part of the oil inlet pipe is provided with a first stepped hole with an inner layer and an outer layer, a first non-return steel ball is arranged in the inner layer of the first stepped hole and at a position abutting against the outer layer of the first stepped hole, the diameter of the first non-return steel ball is larger than that of the outer layer of the first stepped hole, and a second reset spring is arranged between the first non-return steel ball and the pump body.

5. The hydraulic pump for the isobaric chamber non-volume machine controlled reciprocating vehicle according to claim 1, characterized in that: the top of the first oil outlet pipe is provided with an oil cover, the bottom of the top surface of the oil cover is provided with a lifting check valve extending into the first oil outlet pipe, and the side surface of the oil cover is provided with a horizontal second oil outlet pipe.

6. The hydraulic pump for isobaric chamber non-proportional mechanically controlled reciprocating vehicle of claim 5, characterized in that: the inside of the second oil outlet pipe is provided with an inner layer and an outer layer of second stepped holes, the outlet end of the outer layer of the second stepped hole is of an internal thread structure, a second check steel ball is arranged in the outer layer of the second stepped hole and at a position which is abutted against the second stepped Kong Naceng, the diameter of the second check steel ball is larger than that of the inner layer of the second stepped hole, and a third reset spring is arranged between the second check steel ball and the internal thread structure.

7. The hydraulic pump for the isobaric chamber non-volume machine controlled reciprocating vehicle according to claim 1, characterized in that: the pump body top is provided with the mount pad.