CN216951113U

CN216951113U - Hydraulic equipment and engineering machinery

Info

Publication number: CN216951113U
Application number: CN202220794832.5U
Authority: CN
Inventors: 王雪梅; 张帅忠; 金城; 张江河
Original assignee: Zoomlion Heavy Industry Science and Technology Co Ltd
Current assignee: Zoomlion Heavy Industry Science and Technology Co Ltd
Priority date: 2022-04-07
Filing date: 2022-04-07
Publication date: 2022-07-12
Anticipated expiration: 2032-04-07

Abstract

The utility model provides hydraulic equipment which comprises a hydraulic oil tank, an oil return pipe, a flange plate, an execution system and a first filter, wherein an oil inlet of the hydraulic oil tank is connected with an oil outlet of the oil return pipe through the flange plate, an oil inlet of the oil return pipe is connected with the execution system, and the first filter is connected in the flange plate. The first filter of the hydraulic equipment is simple in structure and convenient to replace, the working load of the hydraulic oil tank can be reduced, and the service life of the hydraulic oil tank is prolonged.

Description

Hydraulic equipment and engineering machinery

Technical Field

The utility model relates to the technical field of mining equipment, in particular to hydraulic equipment and engineering machinery.

Background

The hydraulic oil tank in the traditional hydraulic equipment needs to filter oil from an actuating mechanism after heat treatment through an oil absorption filter and an oil return filter, and plays a main role in cleaning the oil, but at present, the oil return filter mainly takes a mesh filter as a main part, and impurities in the oil are blocked by metal mesh micro-grids, but the structure of the oil return filter is complex, so that the cost is high; because the filter screen of the oil return filter needs to be replaced regularly, the daily working conditions of large-scale engineering machinery are relatively severe, the maintenance difficulty of the oil return filter is increased, and the maintenance cost is increased.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a hydraulic device, and the first filter of the hydraulic device is not only simple in structure and convenient to replace, but also can reduce the workload of the hydraulic oil tank and prolong the service life of the hydraulic oil tank.

The utility model provides a hydraulic equipment, includes hydraulic tank, returns oil pipe, ring flange, execution system and first filter, and hydraulic tank's oil inlet passes through the ring flange to be connected with the oil-out that returns oil pipe, returns oil pipe's oil inlet and is connected with execution system, and first filter is connected in the ring flange.

In the utility model, the first filter is provided with at least one filter screen and a collecting box, one end of the filter screen is arranged in the flange plate and arranged along the radial direction of the flange plate, the flange plate is provided with a through hole, and the other end of the filter screen penetrates through the through hole and is fixedly connected with the collecting box.

In the utility model, the filter screens comprise a first filter screen, a second filter screen and a third filter screen, the first filter screen is arranged close to the oil return pipe, the third filter screen is arranged close to the hydraulic oil tank, and the second filter screen is arranged between the first filter screen and the third filter screen.

In the utility model, a first connecting part, a second connecting part and a third connecting part are arranged in the collecting box, a first clamping groove is arranged in the first connecting part, a second clamping groove is arranged in the second connecting part, a third clamping groove is arranged in the third connecting part, the end part of the first filter screen is arranged in the first clamping groove, the end part of the second filter screen is arranged in the second clamping groove, and the end part of the third filter screen is arranged in the third clamping groove.

In the utility model, the filtering precision of the first filter screen is greater than that of the second filter screen, and the filtering precision of the second filter screen is greater than that of the third filter screen.

In the utility model, the first filter is also provided with a sealing gasket, the sealing gasket is circumferentially arranged around the end face of one side of the collecting box, which is close to the flange plate, and the sealing gasket is arranged between the flange plate and the collecting box.

In the utility model, the collecting box is a transparent box or a partially transparent box.

In the utility model, the hydraulic oil tank is provided with a first fastening hole, the flange plate is provided with a second fastening hole, and the fastening piece is arranged in the first fastening hole and the second fastening hole so as to fixedly connect the flange plate to the hydraulic oil tank.

In the utility model, the hydraulic equipment further comprises an oil return filter, the oil return filter is arranged in the hydraulic oil tank, and an oil inlet of the hydraulic oil tank is communicated with the oil return filter.

The utility model also relates to engineering machinery comprising the hydraulic equipment.

According to the hydraulic equipment, the first filter is arranged between the hydraulic oil tank and the oil return pipeline, and oil subjected to heat treatment by the execution system is filtered by the first filter and then enters the hydraulic oil tank, so that the problem of working faults of the hydraulic oil tank due to untimely and incomplete filtration of oil impurities can be avoided as much as possible, and the times of shutdown maintenance and the maintenance cost are reduced.

Drawings

Fig. 1 is a partial structural schematic diagram of a hydraulic apparatus of the present invention.

Fig. 2 is a schematic cross-sectional view of the flange of the present invention in engagement with a first filter.

Fig. 3 is a front view of the flange of the present invention in engagement with a first filter.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all 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 application.

In order to facilitate understanding of those skilled in the art, the present application provides a specific implementation process of the technical solution provided by the present application through the following embodiments.

Fig. 1 is a partial structural schematic diagram of a hydraulic apparatus of the present invention, fig. 2 is a schematic sectional structural schematic diagram of a flange plate and a first filter of the present invention, fig. 3 is a schematic front structural schematic diagram of a flange plate and a first filter of the present invention, as shown in fig. 1, fig. 2 and fig. 3, the hydraulic apparatus includes a hydraulic oil tank 11, an oil return pipe 12, a flange plate 13, an execution system and a first filter, an oil inlet of the hydraulic oil tank 11 is connected with an oil outlet of the oil return pipe 12 through the flange plate 13, an oil inlet of the oil return pipe 12 is connected with the execution system, and the first filter is connected in the flange plate 13. The hydraulic equipment further comprises an oil return filter 19, the oil return filter 19 is arranged in the hydraulic oil tank 11, and an oil inlet of the hydraulic oil tank 11 is communicated with the oil return filter 19. The oil in this embodiment passes through the oil return pipe 12 and the first filter after the heat treatment of the execution system, and then enters the oil return filter 19 in the hydraulic oil tank 11 for filtration, and because the oil has been filtered by the impurities of the first filter, the oil entering the oil return filter 19 for filtration is relatively clean, and at this moment, the oil is filtered by the oil return filter 19 again to slow down the filtration pressure of the oil return filter 19, so that the maintenance frequency of the oil return filter 19 is reduced, and the purpose of reducing the shutdown frequency of the hydraulic equipment is achieved.

According to the hydraulic equipment, the first filter is arranged between the hydraulic oil tank 11 and the oil return pipe 12, oil subjected to heat treatment by the execution system is filtered by the first filter and then enters the hydraulic oil tank 11, so that the problem of working failure of the hydraulic oil tank 11 due to untimely and incomplete filtration of oil impurities can be avoided as much as possible, and the times of shutdown maintenance and the maintenance cost are reduced.

Further, the first filter is provided with at least one filter screen 15 and a collecting box 16, one end of the filter screen 15 is arranged in the flange 13 and arranged along the radial direction of the flange 13, the flange 13 is provided with a through hole 101, and the other end of the filter screen 15 penetrates through the through hole 101 and is fixedly connected to the collecting box 16. In this embodiment, the flange 13 includes the via hole 102, and fluid flows into the hydraulic tank 11 from the via hole 102, and the filter screen 15 covers the via hole 102 setting, ensures that most of the impurity of fluid can not get into the hydraulic tank 11, because the via hole 102 communicates with through-hole 101, therefore the impurity that gravity is great flows into from through-hole 101 and collects in the box 16 and carry out the impurity collection.

Further, the filter screen 15 includes a first filter screen 151, a second filter screen 152 and a third filter screen 153, the first filter screen 151 is disposed near the oil return pipe 12, the third filter screen 153 is disposed near the hydraulic oil tank 11, and the second filter screen 152 is disposed between the first filter screen 151 and the third filter screen 153. In this embodiment, the inner wall of the flange 13 is provided with a first mounting groove 103, a second mounting groove 104 and a third mounting groove 105, the first mounting groove 103, the second mounting groove 104 and the third mounting groove 105 are arranged at intervals, one end of the first filter screen 151 is mounted in the first mounting groove 103, one end of the second filter screen 152 is mounted in the second mounting groove 104, and one end of the third filter screen 153 is mounted in the third mounting groove 105.

Further, the filtering accuracy of the first filter 151 is greater than that of the second filter 152, and the filtering accuracy of the second filter 152 is greater than that of the third filter 153. In this embodiment, the first filter screen 151 is a thick filter screen 15 having a filter precision d greater than or equal to 0.1mm, the second filter screen 152 is a common filter screen 15 having a filter precision d greater than or equal to 0.01mm, and the third filter screen 153 is a thin filter screen 15 having a filter precision d greater than or equal to 0.005 mm.

Further, a first connecting portion 161, a second connecting portion 162 and a third connecting portion 163 are arranged in the collecting box 16, a first clamping groove is arranged in the first connecting portion 161, a second clamping groove is arranged in the second connecting portion 162, a third clamping groove is arranged in the third connecting portion 163, another end portion of the first filter screen 151 is arranged in the first clamping groove, another end portion of the second filter screen 152 is arranged in the second clamping groove, and another end portion of the third filter screen 153 is arranged in the third clamping groove. In the present embodiment, the first, second, and third connecting

portions

161, 162, and 163 are, for example, plate-shaped or cylindrical, and are integrally designed with the collection box 16.

Furthermore, the first filter is also provided with a sealing gasket 17, the sealing gasket 17 is circumferentially arranged around the end surface of the collecting box 16 close to one side of the flange plate 13, and the sealing gasket 17 is arranged between the flange plate 13 and the collecting box 16. In this embodiment, the gasket 17 is, for example, a silicone gasket, and the gasket 17 can tightly connect the flange 13 with the collecting box 16 to prevent water from entering or oil from leaking.

Further, the collection box 16 is a transparent box or a partially transparent box. In this embodiment, the collecting box 16 includes an outer casing 16b and an inner box detachably connected to the outer casing 16b, the outer casing 16b is fixedly connected to the flange 13 by screws 18; interior box is used for collecting the filter residue, and box in shell 16b is used for the protection, and shell 16b, interior box are transparent or translucent form, can observe and judge the volume of the impurity of subsiding in the inner shell 16a at any time to judge the cleanliness height of fluid and whether need change hydraulic oil, shell 16b include the bottom surface and with bottom surface fixed connection's lateral wall, the lateral wall is hollow out construction, or the lateral wall is the transparence, make the user can observe the impurity condition of interior box through shell 16 b.

Further, the hydraulic oil tank 11 is provided with a first fastening hole, the flange 13 is provided with a second fastening hole, and the fastening members are installed in the first fastening hole and the second fastening hole to fixedly connect the flange 13 to the hydraulic oil tank 11. In the present embodiment, the fastening member is, for example, a screw, and the flange 13 is fixedly connected to the oil pipe of the hydraulic oil tank 11 by the screw, specifically, the screw is installed in the first fastening hole and the second fastening hole for connection.

The utility model also relates to engineering machinery comprising the hydraulic equipment. In the present embodiment, the construction machine is, for example, an excavator or an ore machine, but is not limited thereto.

The present invention is not limited to the specific details of the above-described embodiments, and various simple modifications may be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention. The various features described in the foregoing detailed description may be combined in any suitable manner without departing from the scope of the utility model. The utility model is not described in detail in order to avoid unnecessary repetition.

Claims

1. The utility model provides a hydraulic equipment, its characterized in that, includes hydraulic tank (11), returns oil pipe (12), ring flange (13), actuating system and first filter, the oil inlet of hydraulic tank (11) passes through ring flange (13) with the oil-out of returning oil pipe (12) is connected, return oil pipe (12) the oil inlet with actuating system connects, first filter is connected in ring flange (13).

2. A hydraulic apparatus according to claim 1, wherein the first filter is provided with at least one screen (15) and a collecting box (16), one end of the screen (15) being mounted in the flange (13) and arranged radially of the flange (13), the flange (13) being provided with a through hole (101), the other end of the screen (15) extending through the through hole (101) and being fixedly connected to the collecting box (16).

3. The hydraulic apparatus according to claim 2, wherein the filter screen (15) comprises a first filter screen (151), a second filter screen (152), and a third filter screen (153), the first filter screen (151) is disposed near the oil return pipe (12), the third filter screen (153) is disposed near the hydraulic oil tank (11), and the second filter screen (152) is disposed between the first filter screen (151) and the third filter screen (153).

4. The hydraulic equipment according to claim 3, wherein a first connecting portion (161), a second connecting portion (162) and a third connecting portion (163) are arranged in the collecting box (16), a first clamping groove is arranged in the first connecting portion (161), a second clamping groove is arranged in the second connecting portion (162), a third clamping groove is arranged in the third connecting portion (163), the end portion of the first filter screen (151) is arranged in the first clamping groove, the end portion of the second filter screen (152) is arranged in the second clamping groove, and the end portion of the third filter screen (153) is arranged in the third clamping groove.

5. A hydraulic apparatus according to claim 3, characterized in that the filtering accuracy of the first filter (151) is greater than the filtering accuracy of the second filter (152), and the filtering accuracy of the second filter (152) is greater than the filtering accuracy of the third filter (153).

6. A hydraulic device according to claim 2, characterized in that the first filter is further provided with a gasket (17), the gasket (17) being arranged circumferentially around the end surface of the collecting box (16) on the side close to the flange (13), the gasket (17) being arranged between the flange (13) and the collecting box (16).

7. Hydraulic device according to claim 2, characterised in that the collecting box (16) is a transparent or partly transparent box.

8. A hydraulic device according to claim 1, characterized in that the hydraulic tank (11) is provided with first fastening holes and the flange (13) is provided with second fastening holes, and that fastening members are fitted in the first and second fastening holes and fixedly attach the flange (13) to the hydraulic tank (11).

9. A hydraulic device according to claim 1, characterized in that the hydraulic device further comprises an oil return filter (19), the oil return filter (19) being arranged in the hydraulic oil tank (11), the oil inlet of the hydraulic oil tank (11) being in communication with the oil return filter (19).

10. A working machine, characterized by comprising a hydraulic apparatus according to any one of claims 1 to 9.