CN218294019U

CN218294019U - Valve assembly for regulating power of pump of small excavator

Info

Publication number: CN218294019U
Application number: CN202221891267.0U
Authority: CN
Inventors: 杨正山; 李鹏程
Original assignee: Dushang Fine Machine Jiaxing Co ltd
Current assignee: Dushang Fine Machine Jiaxing Co ltd
Priority date: 2022-07-21
Filing date: 2022-07-21
Publication date: 2023-01-13
Anticipated expiration: 2032-07-21

Abstract

The utility model discloses a valve module for small-size excavator pump power adjustment, which comprises a valve body, the infusion hole has been seted up in the valve body, a serial communication port, the valve body is located the defeated flow tube is installed on the top of infusion hole one side, go-between one is installed on the top of defeated flow tube, go-between one is kept away from recess is seted up to one side of valve body, go-between one passes through sealed pad one is installed to the recess, sealed pad one is last to set up fixed thread hole one, beneficial effect: the quantity that makes three through-hole and flowing back pore alignment through rotatory fluid-discharge tube is different to reach control displacement, and then control power, and the quantity through aliging is different, and flowing back power is just also different, and three through-hole all aligns for single alignment with the flowing back pore minimum at most, and threaded connection when because of flowing back pipe and flowing back pore makes the flowing back pipe outwards remove through rotatory flowing back pipe.

Description

Valve assembly for regulating power of pump of small excavator

Technical Field

The utility model relates to a valve module field relates to a valve module for small-size excavator pump power control particularly.

Background

The common mini excavator in the market at present is driven by a hydraulic plunger pump, and its control mode is load sensitive, power control etc. this kind of plunger pump characteristics are: the highest power of the main machine is set through a power valve of the main machine; the load sensitive valve in the pump controls the output flow of the pump by comparing the pump outlet pressure with the pressure from the system, and the existing power valve assemblies are not accurate enough in controlling the output flow and have a limited power range in adjustment so that the required output power cannot be achieved.

For example, a variable pump constant power valve with the existing patent number of CN201620989904.6 is described to be used for open-loop hydraulic transmission and mainly used in the field of walking machinery compared with a mechanical pump. The pump operates under self-priming conditions, tank pressurization or with an internal booster pump. The various controls meet different operational requirements. The regulation power control can be performed externally even when the pump is running. The output flow is proportional to the driving speed and can be steplessly changed between the maximum value and the zero value, the performance requirement of the variable pump can be met, and the application can meet different operation requirements for power control, but the precision is not high during adjustment, so the adjustment power range is limited. An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

To the problem among the correlation technique, the utility model provides a valve module for small-size machine pump power adjustment that digs to overcome the above-mentioned technical problem that current correlation technique exists.

The technical scheme of the utility model is realized like this: a valve component for regulating the power of a pump of a small excavator comprises a valve body, wherein a fluid delivery hole is formed in the valve body, and is characterized in that a fluid delivery pipe is installed at the top end of one side of the fluid delivery hole, a first connecting ring is installed at the top end of the fluid delivery pipe, a groove is formed in one side, far away from the valve body, of the first connecting ring, a first sealing gasket is installed through the groove, a first fixing threaded hole is formed in the first sealing gasket, a second fixing threaded hole with the same position and size as the first fixing threaded hole is formed in the first connecting ring, three fluid drainage holes are formed in the bottom end, far away from the fluid delivery hole, of the valve body, fluid drainage grooves are formed in the bottom end of the valve body and are connected with the fluid drainage holes, a fluid drainage pipe is installed in the fluid drainage grooves in a threaded manner, through holes corresponding to the fluid drainage holes are formed in the bottom end of the fluid drainage pipe, a second sealing gasket is installed in the bottom end of the fluid drainage hole, three threaded holes are formed in the second sealing gasket, two sides in the valve body are symmetrically provided with fluid drainage grooves, the connecting ring is communicated with the fluid delivery groove, the four fluid delivery holes are formed between the fluid drainage holes, and the fluid drainage holes are communicated with the fluid drainage grooves.

Furthermore, a connecting plate is installed at one end, far away from the infusion hole, of the drainage pipe, and a thread groove is formed in the connecting plate.

Furthermore, the bottom end of the valve body is positioned on the outer side of the liquid discharge pipe and is provided with a scale strip, and the outer side of the connecting ring II is provided with a scale pointer.

Furthermore, the number of the bottom ends of the transfusion holes is three, the span of the liquid discharge holes at two ends of the liquid discharge holes is 150 degrees, and the arrangement of the through holes on the liquid discharge pipe is the same as that of the liquid discharge holes.

The utility model provides a valve module for small-size excavator pump power control, beneficial effect as follows:

the three through holes are aligned with the liquid discharge holes in different numbers by rotating the liquid discharge pipe, so that the liquid discharge amount is controlled, the power is controlled, the liquid discharge power is different due to the different aligned numbers, the maximum three through holes are aligned with the liquid discharge holes and are aligned with the liquid discharge holes in a single mode, the liquid discharge pipe moves outwards due to the fact that the liquid discharge pipe is in threaded connection with the liquid discharge holes when the liquid discharge pipe is in threaded connection with the liquid discharge holes, the number of the shunting holes in the range of the drainage groove is reduced, the drainage power in shunting can be controlled, when shunting is not needed, the liquid discharge pipe can be rotated, the shunting holes are completely separated from the range of the drainage groove, the shunting closing effect is achieved, the rotation angle of the liquid discharge pipe can be clearly controlled through the scale bars at the bottom end of the valve body, and the three liquid discharge holes are formed; the span of the liquid discharge holes at the middle two ends is set to prevent the liquid discharge holes at the other end from aligning with the through holes when the liquid discharge pipe is adjusted to the minimum power.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a front view of a valve assembly for power regulation of a small excavator pump according to an embodiment of the present invention;

FIG. 2 is a exploded view of a valve assembly for power adjustment of a small excavator pump according to an embodiment of the present invention;

FIG. 3 is a side cutaway view of a valve assembly for power adjustment of a small excavator pump according to an embodiment of the present disclosure;

FIG. 4 is a top view of a valve assembly for power adjustment of a small excavator pump in accordance with an embodiment of the present invention;

fig. 5 is a bottom view of a valve assembly for power regulation of a small excavator pump according to an embodiment of the present invention.

In the figure:

1. a valve body; 2. a transfusion hole; 3. a fluid delivery pipe; 4. a connecting ring I; 5. a first sealing gasket; 6. a liquid discharge pipe; 7. a connecting ring II; 8. a liquid discharge tank; 9. a second sealing gasket; 10. a shunt slot; 11. a shunt hole; 12. a drainage aperture; 13. a drain pipe; 14. a drainage groove; 15. a connecting plate; 16. a scale bar; 17. A scale pointer; 18. and a liquid discharge hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.

As shown in fig. 1-5, a valve assembly for adjusting pump power of a small excavator according to an embodiment of the present invention includes a valve body 1, a fluid hole 2 is formed in the valve body 1, and is characterized in that a fluid flow pipe 3 is installed at a top end of the valve body 1 on one side of the fluid hole 2, a connection ring one 4 is installed at a top end of the fluid flow pipe 3, a recess is formed at a side of the connection ring one 4 away from the valve body 1, a first sealing gasket 5 is installed through the recess, a first fixing threaded hole is formed in the first sealing gasket 5, a second fixing threaded hole having a position and a size equal to those of the first fixing threaded hole is formed in the first connection ring 4, three fluid discharge holes 18 are formed at a bottom end of the fluid hole 2 in the valve body 1, a fluid discharge groove 8 is formed at a bottom end of the valve body 1, the fluid discharge groove 8 is connected to the fluid discharge hole 18, a fluid discharge pipe 6 is installed in the fluid discharge groove 8, through holes corresponding to the fluid discharge hole 18 are formed in a bottom end of the fluid discharge pipe 6, two connection rings 7 are installed at a side of the connection ring 1, a fluid flow pipe 10 is installed in the connection groove 10, two flow split flow holes 12 are formed in the connection groove 10, two split flow pipes 10 are symmetrically installed in the fluid discharge groove 10, two split flow holes are formed in the connection groove 10, two split flow pipes 10, two split flow holes are formed in the fluid flow pipe 10, two split flow pipes 10 are symmetrically arranged in the connection groove 10, and two split flow pipes 10, the fluid flow pipe 10, the valve body 10, the two split flow pipe 10 are symmetrically arranged in the connection groove 10, the two split flow pipe 10, the drainage holes 12 communicate with the diversion holes 11.

The liquid conveying pipe 3 installed at the top end of the valve body 1 is used for conveying liquid, a needed connecting piece is connected through a threaded hole two in a connecting ring one 4, the connecting ring one 4 and the connecting piece are sealed through a sealing gasket, water leakage is prevented, the connecting piece is connected with the connecting ring one 4 through the threaded hole one and a threaded hole two by using a common stud, the liquid discharging pipe 6 is in threaded connection with a liquid discharging groove 8, three through holes in the bottom end of the liquid discharging pipe 6 are aligned with the liquid discharging holes 18 through rotating the liquid discharging pipe 6, the maximum liquid discharging amount is reached, the maximum liquid discharging power is reached, the two through holes are aligned with the liquid discharging holes 18 through rotating the liquid discharging pipe 6, the liquid discharging speed is reduced, the liquid discharging power is reduced, the liquid discharging pipe 6 is rotated again, one through hole is aligned with the liquid discharging holes 18, the liquid discharging power is the lowest at the moment, the connecting ring two 7 can be connected with other connecting pieces through the connecting ring two connecting rings, the sealing gasket 7 can be sealed through the two sealing gaskets 9, the three pairs of connecting rings are fixed through the threaded holes, the assembly is simple in structure, the three through rotating the liquid discharging pipe 6, the three through the sealing gaskets, the three through the different aligned with the different through the liquid discharging holes 18, the smallest through the different aligning, the different aligning quantity, the different through the aligning, the maximum liquid discharging holes are controlled power, and the aligning with the single liquid discharging holes 18.

In addition, as shown in fig. 2 to 5, in one embodiment, a connecting plate 15 is installed at an end of the drainage pipe 13 away from the infusion hole 2, and a thread groove is formed on the connecting plate 15, so that when the drainage pipe 13 is in threaded connection with the drainage hole 12, the drainage pipe 13 is moved outwards by rotating the drainage pipe 13, thereby reducing the number of the diversion holes 11 in the range of the drainage groove 14, so as to control the drainage power during diversion, and when diversion is not needed, the drainage pipe 13 can be rotated, so that the diversion holes 11 are completely separated from the range of the drainage groove 14, and the diversion closing effect is achieved.

In addition, as shown in fig. 2-5, in one embodiment, a scale bar 16 is installed at the bottom end of the valve body 1, which is located at the outer side of the liquid discharge pipe 6, a scale pointer 17 is installed at the outer side of the connecting ring two 7, the span of the liquid discharge holes 18 at two ends of the liquid discharge holes 18 with the number of three bottom ends of the liquid conveying holes 2 is 150 °, the arrangement of the through holes on the liquid discharge pipe 6 is the same as that of the liquid discharge holes 18, and the rotation angle of the liquid discharge pipe 6 can be clearly controlled through the scale bar 16 at the bottom end of the valve body 1 and through the three liquid discharge holes 18; the drainage holes 18 at the middle and the two ends span 150 degrees, preventing the drainage holes 18 at the other end from aligning with the through holes when the drainage pipe 6 is adjusted to the minimum power.

Based on the above scheme, the utility model discloses during the actual application, its theory of operation or operation process as follows: the liquid conveying pipe 3 installed at the top end of the valve body 1 is used for conveying liquid, the connecting piece needed to be used is connected through the threaded hole II in the connecting ring I4, the connecting ring I4 and the connecting piece are sealed through the sealing gasket, water leakage is prevented, the connecting piece is connected with the connecting ring I4 through the threaded hole I and the threaded hole II by using a common stud, the liquid discharge pipe 6 is in threaded connection with the liquid discharge groove 8, three through holes at the bottom end of the liquid discharge pipe 6 are aligned with the liquid discharge hole 18 by rotating the liquid discharge pipe 6, the maximum liquid discharge capacity is achieved, the maximum liquid discharge power is achieved, two through holes are aligned with the liquid discharge hole 18 by rotating the liquid discharge pipe 6, the liquid discharge speed is reduced, the liquid discharge power is reduced, the liquid discharge pipe 6 is rotated again, one through hole is aligned with the liquid discharge hole 18, the liquid discharge power is the lowest at the moment, the connecting piece can be connected with other connecting pieces through the connecting ring II 7, the sealing gasket II 9 can be used for sealing the connecting ring II 7, and the connecting ring is fixed through the threaded hole III.

With the help of the above technical scheme of the utility model, the utility model discloses can realize making the quantity that three through-hole and outage 18 align different through rotatory fluid-discharge tube 6, thereby reach control leakage fluid volume, and then control power, and quantity through aligning is different, the outage is also different, maximum three through-hole all aligns minimum for single alignment with outage 18, threaded connection when because of drainage pipe 13 and drainage hole 12, through rotatory drainage pipe 13, make drainage pipe 13 outwards remove, thereby reduce the quantity of reposition of redundant personnel hole 11 in the range of drainage tank 14, thereby can control the drainage power when shunting, when need not shunting, rotatable drainage pipe 13 makes reposition of redundant personnel hole 11 all break away from the range of drainage tank 14, reach the effect of closing the reposition of redundant personnel, through scale bar 16 and the rotation angle that can clearly control fluid-discharge tube 6 of valve body 1 bottom, through three outage 18; the drainage holes 18 at the middle and the two ends span 150 degrees, preventing the drainage holes 18 at the other end from aligning with the through holes when the drainage pipe 6 is adjusted to the minimum power.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The valve component for regulating the power of the pump of the small excavator comprises a valve body (1), wherein a liquid conveying hole (2) is formed in the valve body (1), and is characterized in that the valve body (1) is positioned at the top end of one side of the liquid conveying hole (2) and is provided with a liquid conveying pipe (3), a first connecting ring (4) is installed at the top end of the liquid conveying pipe (3), one side of the valve body (1) is far away from the first connecting ring (4) and is provided with a groove, the first connecting ring (4) is provided with a first sealing gasket (5) through the groove, the first sealing gasket (5) is provided with a first fixed threaded hole (4) and a second fixed threaded hole (4) which is equal to the first fixed threaded hole in position and size, the valve body (1) is internally provided with liquid discharging holes (18) with three quantities, the bottom end of the valve body (1) is provided with a liquid discharging groove (8), the liquid discharging groove (8) is connected with the liquid discharging hole (18), a liquid discharging pipe (6) is internally installed in the liquid discharging groove (8), the bottom end of the liquid discharging pipe (6) is provided with a liquid discharging hole (18), the second connecting ring (7) is installed at one side of the sealing gasket (7), the sealing gasket II (9) and the connecting ring are provided with threaded holes III, the two sides in the valve body (1) are provided with flow dividing grooves (10) in an up-down symmetrical mode, the flow dividing grooves (10) are communicated with the infusion holes (2), four flow dividing holes (11) are formed between the flow dividing grooves (10), drainage holes (12) are formed between the flow dividing grooves (10) in the valve body (1), drainage pipes (13) are installed in the drainage holes (12) through internal threads, the drainage pipes (13) are located on the two sides of the flow dividing holes (11) and provided with drainage grooves (14), and the drainage holes (12) are communicated with the flow dividing holes (11).

2. The valve assembly for regulating the power of a pump of a small excavator according to claim 1, wherein a connecting plate (15) is installed at one end of the discharge pipe (13) far away from the liquid feeding hole (2), and a thread groove is formed on the connecting plate (15).

3. The valve assembly for regulating the pump power of the small excavator according to claim 2, wherein a scale bar (16) is arranged at the bottom end of the valve body (1) and positioned on the outer side of the liquid discharge pipe (6), and a scale pointer (17) is arranged on the outer side of the connecting ring II (7).

4. The valve assembly for pump power regulation of a small-sized excavator according to claim 3, wherein the discharge holes (18) at both ends of the three discharge holes (18) at the bottom ends of the fluid delivery holes (2) span 150 ° and the through-hole arrangement on the discharge pipe (6) is the same as the discharge holes (18) arrangement.