CN203189374U - Engineering vehicle hydraulic pump valve integrated system - Google Patents
Engineering vehicle hydraulic pump valve integrated system Download PDFInfo
- Publication number
- CN203189374U CN203189374U CN 201320158198 CN201320158198U CN203189374U CN 203189374 U CN203189374 U CN 203189374U CN 201320158198 CN201320158198 CN 201320158198 CN 201320158198 U CN201320158198 U CN 201320158198U CN 203189374 U CN203189374 U CN 203189374U
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- Prior art keywords
- pump valve
- oil
- valve
- pump
- hydraulic pressure
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Abstract
The utility model discloses an engineering vehicle hydraulic pump valve integrated system which comprises a pump valve rear body which is formed in an integral-cast mode and provided with a gear pump and a reversing valve body. The reversing valve body of the pump valve rear body is connected with an air cylinder body and provided with a central spindle which can penetrate through the interior of the reversing valve body and the interior of the air cylinder body in a sliding mode, and the reversing valve body and the central spindle are arranged in a sealed mode nearby the adjacent position of the air cylinder body and the pump valve rear body. Inlet oil returning openings are formed in the pump valve rear body, the inlet oil returning openings are communicated to the reversing valve body through an oil returning channel, the inlet oil returning openings simultaneously pass through the gear pump and are communicated to the reversing valve body through an internally-arranged oil inlet channel, the two channels and oil outlets formed in the pump valve rear body are respectively communicated to different cavities in the reversing valve body, the different cavities and the position of the central spindle are combined to form an inlet and outlet oil returning way of the integrated system, and an overflow valve is arranged on the internally-arranged oil inlet channel in a communicated mode. A hydraulic element and a control circuit are optimized, oil supplying efficiency is improved, the system pressure is reduced, and service life is prolonged.
Description
Technical field
The utility model relates to a kind of Pneumatic reversal valve, is mainly used in dumping car, crane, environmental sanitation car, tractor, engineering truck and engineering machinery thereof etc.
Background technique
Traditional engineering truck hydraulic pressure and control system all are to be made of oil hydraulic cylinder, gear pump, relief valve, selector valve, one-way valve, fuel tank, oil supply pipeline, oil returning tube and power connecting body.Mainly be that shortcoming is that structure is disperseed, efficient is low, and pressure reduction is big, and tie point is many, and anti-leak source is many, and technology and installation are high and complicated.
Summary of the invention
At above-mentioned deficiency of the prior art, the utility model aims to provide a kind of engineering automobiles hydraulic pressure pump valve total system, has optimized hydraulic element and control loop, has saved cost of material, reduce fuel consume and intrasystem pressure, prolonged the working life of system.
To achieve these goals, the technical solution of the utility model: a kind of engineering automobiles hydraulic pressure pump valve total system, it comprises body behind the pump valve one cast molding and that have gear pump and change valve, be connected with cylinder block behind the described pump valve on the change valve of body and have a mandrel and slidably run through this both inside, near body adjacent position behind described cylinder block and the described pump valve, arrange with the mandrel motive sealing; Body has the oil inlet and oil return mouth behind described pump valve, described oil inlet and oil return mouth is communicated to change valve by drainback passage, described oil inlet and oil return mouth is communicated to change valve via gear pump by built-in oil inlet passage simultaneously, this two passes and be arranged at described pump valve after oil outlet on the body be communicated to different cavitys in the change valve, the turnover oil circuit of the position grouping formation whole system of this difference cavity and described mandrel respectively; Be provided with relief valve in described built-in oil inlet passage connection.
Further, body is connected with the loam cake connecting body behind described pump valve, and this loam cake connecting body communicates with described gear pump, is provided with the power take-off splined shaft and is connected with the gear shaft of described gear pump in last lid attachments.
Body is provided with oil-impregnated bearing behind the pump valve at described gear two ends, and the baffle plate of spacing this oil-impregnated bearing is set respectively in the two side of gear pump, and the side of this baffle plate and gear abuts.
Be provided with the spline connecting sleeve between described power take-off splined shaft and gear shaft, be provided with return spring between this spline connecting sleeve and the loam cake connecting body, this return spring is in contiguous described gear pump one side.
The mandrel that is in the described cylinder block is provided with piston, described cylinder block inner chamber is provided with limiting stopper, wherein, activity be located on the cylinder head of cylinder block piston and described piston fall slowly, limiting stopper is divided into four parts with described cylinder block inner chamber, this four parts inner chamber correspondence respectively arranges and falls mouth, lifting mouth, port for drawdown and return mechanism slowly.
Described return mechanism comprises, be sheathed on the mandrel and the relative spring spool that arranges of sliding with described limiting stopper, with described pump valve after the spring seat that abuts mutually of body, be located at the spring between this spring spool and the spring seat.
Adjacent surface coupling between described piston and the spring spool arranges; Described adjacent surface coupling of falling slowly between piston and the described piston arranges.
Described oil inlet and oil return mouth position is provided with filtrating equipment.This filtrating equipment is preferably filter screen.Described gear pump is the outer gearing high-pressure gear pump.
With gear pump, selector valve, relief valve, one-way valve, the power connecting body integrates, cancelled and be connected high-pressure oil pipe and joint between original gear pump and the valve, hydraulic element and control loop have been optimized, reduce pipeline and increased latus rectum, also slowed down by canal surface simultaneously, the delay of joint and swirling flow, improved fuel feeding efficient, reduced intrasystem working pressure, prolonged the working life of system, cancelled traditional oils pump drive shaft and oil pump bracket, self arranges filtrating equipment product, cancelled the filtrating equipment of hydraulic oil container when using, simultaneously, because body is the one cast molding behind the pump valve, reduced the repetition wall thickness of traditional pump housing and valve body, alleviated the weight of vehicle-mounted hydraulic system dramatically, reduce the fuel consume of car load, reduced production cost of products, and then reduced the manufacture cost of car load.
Main feature of the present utility model is that simple and compact for structure, volume is little, and is in light weight, and rotating speed height and scope are big, and self-priming performance is good, and is low to oily dustiness requirement, performance characteristics such as reliability height, and pressure maximum can reach 31.5MPa.
In sum, the utility model has alleviated the quality of vehicle-mounted hydraulic system, has reduced discharging and fuel consume; Shorten the length of hydraulic system internal oil passages to greatest extent, promoted the working efficiency of hydraulic system; Reduce the working pressure of system, prolonged the working life of product; Reduce production cost of products, improved installation efficiency, improved Security and the reliability of system, reduced or reduced Maintenance of Hydraulic System and upkeep cost.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiments more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the use long splice composition of Fig. 1.
Embodiment
Further describe the utility model below in conjunction with specific embodiment and accompanying drawing.
A kind of engineering automobiles hydraulic pressure pump valve total system as shown in Figure 1, it comprises body 21 behind the pump valve one cast molding and that have gear pump and change valve, be connected with cylinder block 8 behind the described pump valve on the change valve of body 21 and have a mandrel 14 and slidably run through this both inside, near body 21 adjacent positions behind described cylinder block 8 and the described pump valve with mandrel 14 motive sealing settings; Body 21 has oil inlet and oil return mouth 19 behind described pump valve, described oil inlet and oil return mouth 19 is communicated to change valve by drainback passage 18, described oil inlet and oil return mouth 19 is communicated to change valve via gear pump by built-in oil inlet passage 11 simultaneously, this two passes and be arranged at described pump valve after oil outlet 10 on the body 21 be communicated to different cavitys in the change valve, the turnover oil circuit of the position grouping formation whole system of this difference cavity and described mandrel 14 respectively; Be provided with relief valve 16 in described built-in oil inlet passage 11 connections.
Body 21 adopts the cast molding of QT500-7 one behind the pump valve in the utility model, and layout has selector valve, gear pump, relief valve, power connecting body and one-way valve in it.Be specially, described selector valve is consistent with gear pump cloth set direction, makes the whole system compact in design.Because all functions part is integrated in behind the pump valve in the body 21, makes it reduce the repetition wall thickness between the pump housing and the valve body, has alleviated the weight of vehicle-mounted hydraulic system dramatically, has reduced production cost of products, and then has reduced the manufacture cost of car load.
To change valve, one directly forms whole way to cycle oil by drainback passage 18 to change valve and the oil outlet 10 that arranges thereon to described oil inlet and oil return mouth 19 by the 21 inner two passes of body behind the pump valve.It two is communicated to change valve via gear pump by built-in oil inlet passage 11, itself and described oil outlet form the turnover oil path of whole system, cancelled and be connected high-pressure oil pipe and joint between conventional tooth wheel pump and the valve, delay and swirling flow by canal surface, joint have also just been slowed down, improved fuel feeding efficient, reduce intrasystem working pressure, prolonged the working life of system.Optimized hydraulic element and the control loop of whole system by body 21 behind this pump valve, reduced pipeline and increased latus rectum.
The mandrels 14 that are in the described cylinder block 8 are provided with piston 4, are specially this piston 4 and are arranged at the end of mandrel 14 by self-locking nut, are provided with seal ring between the inwall of this piston 4 and cylinder block 8; Described cylinder block 8 inner chambers are provided with limiting stopper 5, be specially these limiting stopper 5 location and be arranged on the step of cylinder block 8 inwalls, and it is spacing in these limiting stopper 5 the other end hole back-up ring 6 to be set, and between the inwall of limiting stopper 5 and cylinder block 8 seal ring is set; Wherein, activity be located on the cylinder head 2 of cylinder block 8 piston 1 and described piston 4 fall slowly, limiting stopper 5 is divided into four parts with described cylinder block 8 inner chambers, this four parts inner chamber respectively correspondence arrange fall mouthfuls 28 slowly, lifting mouth 29, port for drawdown 30 and return mechanism.Piston 1, the various strokes of piston 4 in cylinder block 8 inner chambers fall slowly, make fall mouthfuls 28 slowly, lifting mouth 29, port for drawdown 30 carry out air-flow and come in and go out, and then realizes the actions such as " fall slowly, lifting, decline " of actuator.
Described return mechanism comprises, be sheathed on the mandrel 14 and the relative spring spool 7 that arranges of sliding with described limiting stopper 5, with described pump valve after the spring seat that abuts mutually of body 21, be located at the spring 9 between this spring spool 7 and the spring seat.The cavity effect at this return mechanism place has two, and the one, be used to accommodating return mechanism, the 2nd, for the stroke buffering of spring spool 9, avoid advancing of spring spool 9 downwards and interfered, and then proper functioning that should cylinder block 8.
In order to prevent piston 4 and spring spool 7, the process of falling slowly between piston 1 and the piston 4 is interfered, and the adjacent surface coupling between described piston 4 and spring spool 7 arranges; Described adjacent surface coupling of falling slowly between piston 1 and the described piston 4 arranges.Like this, shorten the relative position relation between each element as much as possible, and then reduce the overall dimensions of whole system, the purpose that also reached economical with materials, reduces cost.
Be provided with end cap 15 in the other end of described mandrel 14, and fastening by screw 13, and the specifications and models of this screw 13 are M6 * 20.Mandrel 14 process buffer spaces should be set on this end cap 15, avoid mandrel 14 when retreating and end cap 15 interferes and then influence the running of valve.
For the transmission of power of pump, body 21 is connected with loam cake connecting body 27 behind described pump valve, and this loam cake connecting body 27 communicates with described gear pump, is provided with power take-off splined shaft 26 and is connected with 17 of the gears of described gear pump in last lid attachments 27.Body 21 is provided with oil-impregnated bearing 23 behind the pump valve at described gear 17 two ends, and the baffle plate 22 of spacing this oil-impregnated bearing 23 is set respectively in the two side of gear pump, and the side of this baffle plate 22 and gear 17 abuts.
Be provided with spline connecting sleeve 25 between 17 of described power take-off splined shaft 26 and gears, be provided with return spring 24 between this spline connecting sleeve 25 and the loam cake connecting body 27, this return spring 24 is in contiguous described gear pump one side.
At last, be provided with filtrating equipment 20 in described oil inlet and oil return mouth 19 positions, namely make native system self have oily filtering function, when using assembling, can cancel the filtrating equipment of hydraulic oil container.As shown in Figure 1, described filtrating equipment 20 is filter screen, and its bag is located on the interior hydraulic fluid port of oil inlet and oil return mouth 19, makes to be filtered by this filter screen along the oil of these oil inlet and oil return mouth 19 turnover, has reduced the impurity wearing and tearing of whole system, has improved working life.
In addition, in the present embodiment, described gear pump is the outer gearing high-pressure gear pump.
When using assembling, as shown in Figure 2, the oil outlet 10 of this hydraulic pressure pump valve total system is communicated with oil cylinder 100, and oil inlet and oil return mouth 19 is communicated with hydraulic pressure mailbox 200.
More than technological scheme that the utility model embodiment is provided be described in detail, used specific case herein the utility model embodiment's principle and mode of execution are set forth, above embodiment's explanation only is applicable to the principle that helps to understand the utility model embodiment; Simultaneously, for one of ordinary skill in the art, according to the utility model embodiment, the part that on embodiment and application area, all can change, in sum, this description should not be construed as restriction of the present utility model.
Claims (10)
1. engineering automobiles hydraulic pressure pump valve total system, it is characterized in that: comprise body (21) behind the pump valve one cast molding and that have gear pump and change valve, be connected with cylinder block (8) on the change valve of body behind the described pump valve (21) and have a mandrel (14) and slidably run through this both inside, behind described cylinder block (8) and described pump valve near body (21) adjacent position and mandrel (14) motive sealing setting; Body behind described pump valve (21) has oil inlet and oil return mouth (19), described oil inlet and oil return mouth (19) is communicated to change valve by drainback passage (18), described oil inlet and oil return mouth (19) is communicated to change valve via gear pump by built-in oil inlet passage (11) simultaneously, this two passes and be arranged at described pump valve after oil outlet (10) on the body (21) be communicated to different cavitys in the change valve, the turnover oil circuit of the position grouping formation whole system of this difference cavity and described mandrel (14) respectively; Be provided with relief valve (16) in described built-in oil inlet passage (11) connection.
2. engineering automobiles hydraulic pressure pump valve total system according to claim 1, it is characterized in that: body behind described pump valve (21) is connected with loam cake connecting body (27), this loam cake connecting body (27) communicates with described gear pump, is provided with power take-off splined shaft (26) and is connected with gear (17) axle of described gear pump in last lid attachments (27).
3. engineering automobiles hydraulic pressure pump valve total system according to claim 2, it is characterized in that: body (21) is provided with oil-impregnated bearing (23) behind the pump valve at described gear (17) two ends, and the baffle plate (22) of spacing this oil-impregnated bearing (23) is set respectively in the two side of gear pump, and the side of this baffle plate (22) and gear (17) abuts.
4. engineering automobiles hydraulic pressure pump valve total system according to claim 2, it is characterized in that: between described power take-off splined shaft (26) and gear (17) axle, be provided with spline connecting sleeve (25), be provided with return spring (24) between this spline connecting sleeve (25) and the loam cake connecting body (27), this return spring (24) is in contiguous described gear pump one side.
5. engineering automobiles hydraulic pressure pump valve total system according to claim 1, it is characterized in that: the mandrel (14) that is in the described cylinder block (8) is provided with piston (4), described cylinder block (8) inner chamber is provided with limiting stopper (5), wherein, activity be located on the cylinder head (2) of cylinder block (8) piston (1) and described piston (4) fall slowly, limiting stopper (5) is divided into four parts with described cylinder block (8) inner chamber, this four parts inner chamber correspondence respectively arranges and falls mouthful (28), a lifting mouth (29), port for drawdown (30) and return mechanism slowly.
6. engineering automobiles hydraulic pressure pump valve total system according to claim 5, it is characterized in that: described return mechanism comprises, be sheathed on that mandrel (14) is gone up and the relative spring spool (7) that arranges of sliding with described limiting stopper (5), and described pump valve after the spring seat that abuts mutually of body (21), be located at the spring (9) between this spring spool (7) and the spring seat.
7. engineering automobiles hydraulic pressure pump valve total system according to claim 6 is characterized in that: the adjacent surface coupling setting between described piston (4) and the spring spool (7); Described adjacent surface coupling of falling slowly between piston (1) and the described piston (4) arranges.
8. engineering automobiles hydraulic pressure pump valve total system according to claim 1, it is characterized in that: described oil inlet and oil return mouth (19) position is provided with filtrating equipment (20).
9. engineering automobiles hydraulic pressure pump valve total system according to claim 8, it is characterized in that: described filtrating equipment (20) is filter screen.
10. engineering automobiles hydraulic pressure pump valve total system according to claim 1, it is characterized in that: described gear pump is the outer gearing high-pressure gear pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320158198 CN203189374U (en) | 2013-04-01 | 2013-04-01 | Engineering vehicle hydraulic pump valve integrated system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320158198 CN203189374U (en) | 2013-04-01 | 2013-04-01 | Engineering vehicle hydraulic pump valve integrated system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203189374U true CN203189374U (en) | 2013-09-11 |
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ID=49106236
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320158198 Expired - Fee Related CN203189374U (en) | 2013-04-01 | 2013-04-01 | Engineering vehicle hydraulic pump valve integrated system |
Country Status (1)
| Country | Link |
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| CN (1) | CN203189374U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100591A (en) * | 2013-04-01 | 2014-10-15 | 重庆航宇实业有限公司 | Engineering vehicle hydraulic pump valve integrated system |
| CN104100583A (en) * | 2014-07-04 | 2014-10-15 | 宁波雪隆王液压科技有限公司 | Hydraulic combination system for dumper |
| CN104214090A (en) * | 2014-08-08 | 2014-12-17 | 宁波雪隆王液压科技有限公司 | An integral structure of a gear pump and a jet flow valve |
-
2013
- 2013-04-01 CN CN 201320158198 patent/CN203189374U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100591A (en) * | 2013-04-01 | 2014-10-15 | 重庆航宇实业有限公司 | Engineering vehicle hydraulic pump valve integrated system |
| CN104100583A (en) * | 2014-07-04 | 2014-10-15 | 宁波雪隆王液压科技有限公司 | Hydraulic combination system for dumper |
| CN104214090A (en) * | 2014-08-08 | 2014-12-17 | 宁波雪隆王液压科技有限公司 | An integral structure of a gear pump and a jet flow valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130911 Termination date: 20150401 |
|
| EXPY | Termination of patent right or utility model |