CN213298256U

CN213298256U - Buffer valve casting for excavator hydraulic pump

Info

Publication number: CN213298256U
Application number: CN202021304903.6U
Authority: CN
Inventors: 朱亮; 马建华; 丁洋
Original assignee: Nantong Huadong Hydraulic Technology Co Ltd
Current assignee: Nantong Huadong Hydraulic Technology Co Ltd
Priority date: 2020-07-07
Filing date: 2020-07-07
Publication date: 2021-05-28
Anticipated expiration: 2030-07-07

Abstract

The invention discloses a cushion valve casting for a hydraulic pump of an excavator, which comprises a casting body, coupling mechanism and clean mechanism, the bottom surface of foundry goods body is provided with the connecting pipe, a side surface of the connecting pipe of foundry goods body is provided with the ring flange, coupling mechanism is located the surface of connecting pipe, coupling mechanism includes first connection pad, first connection pad is located a side surface of connecting pipe, the connecting pipe runs through first connection pad, the fixed orifices has been seted up to a side surface of first connection pad, a side surface of first connection pad is provided with the second connection pad, one side fixedly connected with connecting rod of second connection pad, the second connection pad passes through the connecting rod and is connected with first connection pad with the fixed orifices block, the second screw hole has been seted up on the surface of first connection pad, one side rotation that a side surface of second connection pad is in the connecting rod is connected with first drive gear, one side that a side surface of second connection pad is in first drive gear is provided with second.

Description

Buffer valve casting for excavator hydraulic pump

Technical Field

The invention belongs to the technical field of cushion valve castings, and particularly relates to a cushion valve casting for a hydraulic pump of an excavator.

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. The hydraulic pump is divided into a gear pump, a plunger pump, a vane pump and a screw pump according to the structure. One type of hydraulic component that provides pressurized fluid for a hydraulic drive is a pump. Its function is to convert the mechanical energy of power machine (such as motor and internal combustion engine) into the pressure energy of liquid. The service life of the hydraulic pump is influenced by a plurality of factors, and besides the design and manufacture factors of the pump, the factors are also related to the selection of some elements (such as a coupler, an oil filter and the like) related to the use of the pump, the operation in the process of trial run and the like. When a hydraulic pump is used, a cushion valve is required.

But the cushion valve foundry goods still has some drawbacks for current excavator hydraulic pump, when the valve body needs to be connected with external connection pipe, the surface of ring flange is provided with a plurality of connection holes, need the staff to be connected with the nut through the bolt one by one, waste time and energy, use the back when the cushion valve for a long time in addition for impurity such as too much dust is piled up on the surface of filter screen, the problem of the filter hole on filter screen surface is blockked up easily, we provide a cushion valve foundry goods for excavator hydraulic pump for this reason.

SUMMERY OF THE UTILITY MODEL

The invention aims to provide a cushion valve casting for a hydraulic pump of an excavator, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a cushion valve casting for an excavator hydraulic pump comprises a casting body, a connecting mechanism and a cleaning mechanism, wherein a connecting pipe is arranged on the bottom end surface of the casting body, a flange plate is arranged on one side surface of the connecting pipe of the casting body, the connecting mechanism is positioned on the surface of the connecting pipe, the connecting mechanism comprises a first connecting disc, the first connecting disc is positioned on one side surface of the connecting pipe, the connecting pipe penetrates through the first connecting disc, a fixing hole is formed in one side surface of the first connecting disc, a second connecting disc is arranged on one side surface of the first connecting disc, a connecting rod is fixedly connected to one side of the second connecting disc, the second connecting disc is connected with the first connecting disc through the clamping of the connecting rod and the fixing hole, a second threaded hole is formed in the surface of the first connecting disc, and a first driving gear is rotatably connected to one side surface of the second connecting disc, which is, and a second driving gear is arranged on one side, positioned at the first driving gear, of the surface of one side of the second connecting disc, a driven gear is meshed with the surface of one side of the first driving gear, and the second driving gear is rotationally connected with the first driving gear through the driven gear.

Preferably, the inlet has been seted up to a side surface of ring flange, the inboard of inlet is provided with the filter screen, clean mechanism is located the junction of ring flange and filter screen, clean mechanism includes the slide bar, the slide bar is located a side surface of ring flange, a side fixed surface of filter screen is connected with the sliding block, the sliding tray has been seted up to a side surface of ring flange, the filter screen passes through the sliding block and slides with sliding tray sliding and ring flange swing joint, the fixed slot has been seted up to the inside of ring flange, the inside of fixed slot is provided with the bolt, the inboard fixed surface of fixed slot is connected with the spring, the bolt passes through the spring and is connected with the fixed slot, a side surface of sliding block has seted up the draw-in groove.

Preferably, a rotating handle is fixedly connected to the front surface of the first driving gear, and a first threaded hole is formed in one side, located on the rotating handle, of the front surface of the first driving gear.

Preferably, the cross-sectional shapes of the first threaded hole and the second threaded hole are both hexagonal, a nut is installed inside the first threaded hole, and a bolt is installed inside the second threaded hole.

Preferably, four groups of fixing holes and four groups of connecting rods are arranged on the surface of one side of the first connecting disc, and the four groups of connecting rods are fixedly connected to the surface of one side of the second connecting disc.

Preferably, a second sliding hole groove is formed in the surface of one side of the fixing groove, and the sliding rod penetrates through the second sliding hole groove and is connected with the bolt.

Preferably, a connecting hole is formed in the surface of one side of the sliding groove, and the plug pin penetrates through the connecting hole and is connected with the spring.

Preferably, a first sliding hole groove is formed in one side, located at the sliding groove, of the surface of one side of the flange plate, and the sliding rod penetrates through the first sliding hole groove and is connected with the bolt.

Preferably, the cross-sectional shapes of the sliding groove and the sliding block are both in a shape of a T, and the opening width of the sliding groove is twice of one point of the width of the sliding block.

Preferably, the springs are provided with two groups, and the two groups of springs are connected to one side surface of the bolt.

Compared with the prior art, the invention has the beneficial effects that:

1. through the first connecting disc that sets up, effectively avoided when the valve body needs to be connected with external connection pipe, the surface of ring flange is provided with a plurality of connection holes, needs the staff to be connected with the nut through the bolt one by one, wastes time and energy, is favorable to convenient, quick being connected the valve body with external connection pipe, has improved staff's work efficiency, has shortened the installation time of valve body and external connection pipe simultaneously, has improved the practicality of cushion valve.

2. Through the first screw hole that sets up, effectively avoided when the long-time back of using of cushion valve for impurity such as too much dust is piled up on the surface of filter screen, blocks up the filtration pore on filter screen surface easily, is favorable to convenient, quick dismantlement filter screen, has made things convenient for the clean operation of staff to the filter screen, has ensured the filter effect of filter screen to liquid, has improved the operating quality of cushion valve, has also prolonged the life of filter screen.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic diagram of the second land of FIG. 1 according to the present invention;

FIG. 3 is a schematic view of the first splice tray of FIG. 1 according to the present invention;

FIG. 4 is a side elevational view of the flange of FIG. 1 in accordance with the present invention;

FIG. 5 is a front cross-sectional view of the flange and filter screen of FIG. 3 in accordance with the present invention;

FIG. 6 is an enlarged view of A in FIG. 5 according to the present invention

In the figure: 1. a casting body; 2. a flange plate; 3. a second connecting disc; 4. a first splice tray; 5. a first drive gear; 6. a second drive gear; 7. a driven gear; 8. a connecting rod; 9. rotating the handle; 10. a first threaded hole; 11. a second threaded hole; 12. a fixing hole; 13. a liquid inlet; 14. a filter screen; 15. a slider; 16. a sliding groove; 17. a slide bar; 18. a first slide hole groove; 19. fixing grooves; 20. a spring; 21. A bolt; 22. a card slot; 23. a second slide hole groove; 24. connecting holes; 25. and (4) connecting the pipes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides the following technical solutions: a cushion valve casting for a hydraulic pump of an excavator comprises a casting body 1, a connecting mechanism and a cleaning mechanism, wherein a connecting pipe 25 is arranged on the bottom end surface of the casting body 1, a flange plate 2 is arranged on one side surface of the connecting pipe 25 of the casting body 1, the connecting mechanism is arranged on the surface of the connecting pipe 25, the connecting mechanism comprises a first connecting disc 4, the first connecting disc 4 is arranged on one side surface of the connecting pipe 25, the connecting pipe 25 penetrates through the first connecting disc 4, a fixing hole 12 is formed in one side surface of the first connecting disc 4, a second connecting disc 3 is arranged on one side surface of the first connecting disc 4, a connecting rod 8 is fixedly connected to one side of the second connecting disc 3, the second connecting disc 3 is clamped with the fixing hole 12 through the connecting rod 8 and is connected with the first connecting disc 4, a second threaded hole 11 is formed in the surface of the first connecting disc 4, a first driving gear 5 is rotatably connected to one, a second driving gear 6 is arranged on one side surface of the second connecting disc 3 on one side of the first driving gear 5, a driven gear 7 is connected to one side surface of the first driving gear 5 in a meshing manner, and the second driving gear 6 is rotationally connected with the first driving gear 5 through the driven gear 7.

In this embodiment, preferably, a liquid inlet 13 is formed in a side surface of the flange 2, a filter screen 14 is disposed inside the liquid inlet 13, the cleaning mechanism is located at a joint between the flange 2 and the filter screen 14, the cleaning mechanism includes a slide rod 17, the slide rod 17 is located on a side surface of the flange 2, a slide block 15 is fixedly connected to a side surface of the filter screen 14, a slide groove 16 is formed in a side surface of the flange 2, the filter screen 14 is slidably connected to the flange 2 through the slide block 15 and the slide groove 16, a fixing groove 19 is formed in the flange 2, a plug 21 is disposed inside the fixing groove 19, a spring 20 is fixedly connected to an inside surface of the fixing groove 19, the plug 21 is connected to the fixing groove 19 through the spring 20, a clamping groove 22 is formed in a side surface of the slide block 15, and an end of the, the cleaning operation of the filter screen 14 by the workers is facilitated, the filtering effect of the filter screen 14 on liquid is guaranteed, the working quality of the buffer valve is improved, and the service life of the filter screen 14 is prolonged.

In this embodiment, preferably, the front surface of the first driving gear 5 is fixedly connected with a rotating handle 9, one side of the front surface of the first driving gear 5, which is located at the rotating handle 9, is provided with a first threaded hole 10, and the first driving gear 5 can be driven to rotate by rotating the rotating handle 9, and then the second driving gear 6 can be driven to rotate through the driven gear 7.

In this embodiment, preferably, the cross-sectional shapes of the first threaded hole 10 and the second threaded hole 11 are both hexagonal, the nut is installed inside the first threaded hole 10, and the bolt is installed inside the second threaded hole 11, so that the external connection pipe 25 and the external connection pipe can be stably installed together.

In this embodiment, preferably, four sets of fixing holes 12 and four sets of connecting rods 8 are provided, each set of fixing holes 12 is formed in one side surface of the first connecting plate 4, each set of connecting rods 8 is fixedly connected to one side surface of the second connecting plate 3, and the second connecting plate 3 and the first connecting plate 4 can be stably connected together.

In this embodiment, it is preferable that a second slide hole groove 23 is formed on one side surface of the fixing groove 19, the slide rod 17 penetrates the second slide hole groove 23 and is connected to the latch 21, and the latch 21 can move to one side inside the fixing groove 19 by pulling the slide rod 17 to one side.

In this embodiment, preferably, a connecting hole 24 is formed on one side surface of the sliding groove 16, and the plug 21 penetrates through the connecting hole 24 and is connected with the spring 20, so that the end of the plug 21 can leave the inside of the slot 22.

In this embodiment, preferably, a first sliding hole groove 18 is formed in one side of the surface of the flange 2, which is located at the sliding groove 16, and the sliding rod 17 penetrates through the first sliding hole groove 18 and is connected with the plug pin 21, so that the plug pin 21 can be driven to move to one side by pulling the sliding rod 17 on the surface of one side of the flange 2.

In this embodiment, it is preferable that the cross-sectional shapes of the sliding groove 16 and the sliding block 15 are both "T" shapes, the opening width of the sliding groove 16 is one point twice of the width of the sliding block 15, and the sliding movement of the sliding block 15 and the sliding groove 16 facilitates the removal and cleaning operations of the filter screen 14.

In this embodiment, it is preferable that the springs 20 are provided in two sets, and both sets of the springs 20 are connected to one side surface of the latch 21 so that the latch 21 can be moved to one side by the elastic force of the springs 20.

The working principle and the using process of the invention are as follows: when the device is used, the second connecting disc 3 is firstly sleeved on a connecting pipe which is required to be externally connected with the connecting pipe 25, then the connecting rod 8 is aligned with the fixing hole 12 and the connecting rod 8 is ensured to be inserted into the fixing hole 12, then a nut used for connecting the connecting pipe 25 with the externally connected connecting pipe is placed in the first threaded hole 10, a bolt used for connecting the connecting pipe 25 with the externally connected connecting pipe is placed in the second threaded hole 11, the bolt is ensured to be contacted with the nut, the first driving gear 5 is rotated by rotating the handle 9, the first driving gear 5 can drive the second driving gear 6 to rotate by using the driven gear 7 in the rotating process, so that the rotation of the bolt in the second threaded hole 11 is realized, the bolt can be fixedly connected with the connecting pipe 25 and the externally connected pipe by using the nut in the rotating process, and the working efficiency of workers is also improved, meanwhile, the installation time of the valve body and the external connecting pipe is shortened, and the practicability of the buffer valve is improved. When using, at first with slide bar 17 through the pulling of first slide groove 18 to one side, then drive the bolt 21 of connecting in one side and pass through the elastic force of spring 20 and remove to one side, make the tip of bolt 21 leave the inside of draw-in groove 22, can be opened filter screen 14 and ring flange 2's fixed state this moment, then pass through slide 15 with filter screen 14 and slide in the inboard of slide 16 to one side, make the inside of slide 15 roll-off slide groove 16, then can be with the inside of filter screen 14 roll-off inlet 13, and then can dismantle filter screen 14 from ring flange 2, thereby made things convenient for the cleaning job of staff to filter screen 14, filter 14 has ensured the filtering action to liquid, the operating mass of cushion valve has been improved, the life of filter screen 14 has also been prolonged.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an excavator is cushion valve foundry goods for hydraulic pump, includes foundry goods body (1), coupling mechanism and clean mechanism, its characterized in that: the bottom end surface of the casting body (1) is provided with a connecting pipe (25), one side surface of the connecting pipe (25) of the casting body (1) is provided with a flange plate (2), the connecting mechanism is positioned on the surface of the connecting pipe (25), the connecting mechanism comprises a first connecting plate (4), the first connecting plate (4) is positioned on one side surface of the connecting pipe (25), the connecting pipe (25) penetrates through the first connecting plate (4), one side surface of the first connecting plate (4) is provided with a fixing hole (12), one side surface of the first connecting plate (4) is provided with a second connecting plate (3), one side of the second connecting plate (3) is fixedly connected with a connecting rod (8), the second connecting plate (3) is clamped with the first connecting plate (4) through the connecting rod (8) and the fixing hole (12), a second threaded hole (11) is formed in the surface of the first connecting plate (4), one side surface of second connection pad (3) is in one side rotation of connecting rod (8) and is connected with first drive gear (5), one side surface of second connection pad (3) is in one side of first drive gear (5) and is provided with second drive gear (6), one side surface meshing of first drive gear (5) is connected with driven gear (7), second drive gear (6) are connected with first drive gear (5) rotation through driven gear (7).

2. The cushion valve casting for the excavator hydraulic pump according to claim 1, characterized in that: the liquid inlet (13) is formed in one side surface of the flange plate (2), the filter screen (14) is arranged on the inner side of the liquid inlet (13), the cleaning mechanism is located at the joint of the flange plate (2) and the filter screen (14), the cleaning mechanism comprises a sliding rod (17), the sliding rod (17) is located on one side surface of the flange plate (2), a sliding block (15) is fixedly connected to one side surface of the filter screen (14), a sliding groove (16) is formed in one side surface of the flange plate (2), the filter screen (14) is in sliding connection with the flange plate (2) through the sliding block (15) and the sliding groove (16), a fixing groove (19) is formed in the flange plate (2), a bolt (21) is arranged in the fixing groove (19), a spring (20) is fixedly connected to the inner side surface of the fixing groove (19), and the bolt (21) is connected with the fixing groove (19) through, a clamping groove (22) is formed in the surface of one side of the sliding block (15), and the end portion of the plug pin (21) is located inside the clamping groove (22).

3. The cushion valve casting for the excavator hydraulic pump according to claim 1, characterized in that: the front surface of the first driving gear (5) is fixedly connected with a rotating handle (9), and one side, located at the rotating handle (9), of the front surface of the first driving gear (5) is provided with a first threaded hole (10).

4. The cushion valve casting for the excavator hydraulic pump according to claim 3, wherein: the cross-sectional shapes of the first threaded hole (10) and the second threaded hole (11) are both hexagons, a nut is installed inside the first threaded hole (10), and a bolt is installed inside the second threaded hole (11).

5. The cushion valve casting for the excavator hydraulic pump according to claim 1, characterized in that: the fixing holes (12) and the connecting rods (8) are provided with four groups, the fixing holes (12) are arranged on one side surface of the first connecting disc (4), and the connecting rods (8) are fixedly connected to one side surface of the second connecting disc (3).

6. The cushion valve casting for the excavator hydraulic pump according to claim 2, characterized in that: and a second sliding hole groove (23) is formed in the surface of one side of the fixing groove (19), and the sliding rod (17) penetrates through the second sliding hole groove (23) and is connected with the bolt (21).

7. The cushion valve casting for the excavator hydraulic pump according to claim 2, characterized in that: a connecting hole (24) is formed in the surface of one side of the sliding groove (16), and the bolt (21) penetrates through the connecting hole (24) and is connected with the spring (20).

8. The cushion valve casting for the excavator hydraulic pump according to claim 2, characterized in that: a first sliding hole groove (18) is formed in one side, located on the sliding groove (16), of the surface of one side of the flange plate (2), and the sliding rod (17) penetrates through the first sliding hole groove (18) and is connected with a plug pin (21).

9. The cushion valve casting for the excavator hydraulic pump according to claim 2, characterized in that: the cross-sectional shapes of the sliding groove (16) and the sliding block (15) are both T-shaped, and the opening width of the sliding groove (16) is twice of one point of the width of the sliding block (15).

10. The cushion valve casting for the excavator hydraulic pump according to claim 2, characterized in that: the spring (20) is provided with two sets, and two sets of spring (20) all connect in a side surface of bolt (21).