CN220748700U

CN220748700U - Oil return filter installation device, hydraulic oil tank and engineering machinery

Info

Publication number: CN220748700U
Application number: CN202322522299.4U
Authority: CN
Inventors: 肖杰; 刘志军; 赵杰; 虎晓伟; 韩东虎; 王卓锋
Original assignee: Xuzhou XCMG Excavator Machinery Co Ltd
Current assignee: Xuzhou XCMG Excavator Machinery Co Ltd
Priority date: 2023-09-18
Filing date: 2023-09-18
Publication date: 2024-04-09
Anticipated expiration: 2033-09-18

Abstract

The utility model discloses an oil return filter mounting device, a hydraulic oil tank and engineering machinery, which comprise an elastic component and a flange gland component; the elastic component is arranged on the top surface of the oil return filter in the hydraulic oil tank; the flange gland assembly comprises a flange plate and a pressing mechanism; the flange plate is detachably arranged on the hydraulic oil tank; the pressing mechanism is connected with the flange plate in a mode of different axes and is used for extruding the elastic component, so that the elastic component presses the oil return filter. The utility model can realize the compaction and the anti-loose of the flange gland and the oil return filter under the condition of different mounting positions; the utility model is assembled outside the oil tank, is convenient to assemble and disassemble, and improves the reliability.

Description

Oil return filter installation device, hydraulic oil tank and engineering machinery

Technical Field

The utility model relates to the technical field of engineering machinery, in particular to an oil return filter compacting and locking device under the condition that a flange gland in a hydraulic oil tank and an oil return filter are not concentric.

Background

The oil return filter (herein, specifically referred to as filtering hydraulic oil, hereinafter referred to simply as oil return filter) is widely applied to various engineering machinery, especially the technical field of excavators. Based on the fact that at present, the excavator is mostly converted from mechanical energy into hydraulic energy, and hydraulic oil is used as a working medium to push a working device to act. The installation of the oil return filter is indispensable, and meanwhile, the oil return filter is firmly installed without the risk of jumping out in the normal use process of the excavator.

The existing oil return filter installation mode generally comprises the following steps: a. spiral installation: the oil return filter oil inlet is provided with threads, and the tightening torque installation is achieved through a screw. b. And (3) compacting and installing: the top of the oil return filter is provided with a spring groove or a bulge, and the oil return filter is pressed by a pressing plate right above by means of spring force. c. Spiral pipeline connection: the installation mode is generally outside the oil tank, and is externally connected with an oil return filter oil inlet and outlet through a hose. The compression and anti-loosening reliability of the oil return filter during installation can be guaranteed in the three modes.

When the installation positions of the flange gland and the oil return filter are not concentric, the prior device is not suitable for looseness prevention and compaction.

Disclosure of Invention

According to the defects of the prior art, the utility model provides the oil return filter mounting device which can realize compression and anti-loosening under the condition that the mounting positions of the flange gland and the oil return filter are not concentric.

The utility model is realized according to the following technical scheme:

in a first aspect, the utility model discloses an oil return filter mounting device, comprising an elastic component and a flange gland component; the elastic component is arranged on the top surface of the oil return filter in the hydraulic oil tank; the flange gland assembly comprises a flange plate and a pressing mechanism; the flange plate is detachably arranged on the hydraulic oil tank; the pressing mechanism is connected with the flange plate in a mode of different axes and is used for extruding the elastic component, so that the elastic component presses the oil return filter.

In some embodiments, the resilient assembly includes a spring seat and a spring; the spring seat comprises a support plate and a guide tube; the supporting plate is used for contacting with the oil return filter; the guide pipes are arranged on the top surface of the supporting plate in a mutually perpendicular mode; the spring is sleeved on the guide pipe, compresses the spring, and pushes the spring seat to move downwards under the elasticity of the spring to compress the oil return filter.

In some embodiments, the guide tube is arranged coaxially with the support plate.

In some embodiments, the pressing mechanism comprises a pressing plate, and the pressing mechanism consists of an annular plate and a connecting plate integrally cast or welded with the annular plate, wherein the annular plate is sleeved on the guide pipe, and the connecting plate is connected with the flange plate.

In some embodiments, the connection plates are formed as follows: the outer edge of the annular plate horizontally protrudes outwards and then vertically extends upwards for a preset distance, and then is horizontally bent towards the annular plate to form a mounting surface for being connected with the flange plate.

In some embodiments, a rib plate for reinforcing the strength of the pressing plate is arranged between the annular plate and the connecting plate; the outer side profile of the rib plate is matched with the inner side profile of the connecting plate, so that the rib plate can be attached to the inner side surface of the connecting plate.

In some embodiments, the compressing mechanism further comprises a limiting ring coaxially arranged with the annular plate in the pressing plate, and the diameter of the inner ring of the limiting ring is larger than that of the inner ring of the annular plate, so that the spring is limited, and the spring is prevented from moving left and right.

In some embodiments, the guide tube is provided with a stop member above the annular plate to limit upward movement of the annular plate out of engagement with the guide tube.

In some embodiments, the limiting component is composed of a bolt and a nut, the bolt radially penetrates through the guide tube, the bolt is limited on the guide tube through the fastening nut, and the annular plate is limited through the bolt protruding on the guide tube.

In some embodiments, a rubber gasket is mounted between the annular plate and the opposing peripheral surface of the guide tube.

In some embodiments, the circumference of the flange plate is mounted on a flange gland mounting seat positioned on the top surface of the hydraulic oil tank through a plurality of fixing bolts; after the fixing bolts are removed, the oil return filter mounting device can be removed from the hydraulic oil tank.

In a second aspect, the utility model discloses a hydraulic oil tank, which comprises an oil tank shell and an oil return filter positioned in the oil tank shell, wherein the oil return filter mounting device is mounted on the oil tank shell.

In a third aspect, the present utility model discloses an engineering machine, in which the above oil return filter mounting device is mounted; alternatively, the above-described hydraulic oil tank is mounted.

Compared with the prior art, the utility model has the beneficial effects that:

1) The utility model can realize the compaction and the anti-loose of the flange gland and the oil return filter under the condition of different mounting positions;

2) The utility model is assembled outside the oil tank, is convenient to assemble and disassemble, and improves the reliability.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. It is evident that the drawings in the following description are only examples, from which other drawings can be obtained by a person skilled in the art without the inventive effort.

In the drawings:

FIG. 1 is a schematic view of an oil return filter mounting apparatus of the present utility model;

FIG. 2 is a schematic view of a flange in accordance with the present utility model;

FIG. 3 is a schematic view of a platen of the present utility model;

FIG. 4 is a schematic view of a gusset according to the present utility model;

FIG. 5 is a schematic view of a guide tube according to the present utility model;

FIG. 6 is a schematic view of a rubber gasket of the present utility model;

FIG. 7 is a schematic view of a stop collar of the present utility model;

FIG. 8 is a schematic view of a spring of the present utility model;

FIG. 9 is a schematic view of a support plate of the present utility model;

FIG. 10 is a schematic view of a flange gland assembly of the present utility model;

FIG. 11 is a schematic view of a spring seat according to the present utility model;

fig. 12 is a schematic view showing an application example of the oil return filter installation device of the present utility model.

The attached drawings are identified: 1-a flange plate; 2-pressing plates; 3-rib plates; 4-bolts; 5-nuts; 6-a guide tube; 7-a rubber gasket; 8-limiting rings; 9-a spring; 10-supporting plates; 11-oil tank shell, 12-flange gland mount pad, 13-oil return filter, 14-oil return filter installation device.

It should be noted that these drawings and the written description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept to those skilled in the art by referring to the specific embodiments.

Description of the embodiments

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions in the embodiments will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model, and the following embodiments are used to illustrate the present utility model, but are not intended to limit the scope of the present utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1, 10, 11 and 12, an oil return filter mounting device comprises an elastic assembly and a flange gland assembly; the elastic component is arranged on the top surface of the oil return filter 13 positioned in the hydraulic oil tank; the flange gland assembly comprises a flange plate 1 and a pressing mechanism; the flange plate 1 is detachably arranged on the hydraulic oil tank; the pressing mechanism is connected with the flange plate 1 in a different axis mode and is used for pressing the elastic assembly, so that the elastic assembly presses the oil return filter 13.

A preferred embodiment of the above embodiment with respect to the elastic member is given below:

as shown in fig. 1, 5, 8, 9 and 11, the elastic assembly comprises a spring seat and a spring 9; the spring seat comprises a support plate 10 and a guide tube 6; the support plate 10 is used for contacting with an oil return filter 13; the guide pipes 6 are installed on the top surface of the support plate 10 in a mutually perpendicular manner; the spring 9 is sleeved on the guide pipe 6, the spring 9 is pressed, and the spring seat is pushed to move downwards under the elasticity of the spring 9 to press the oil return filter 13.

Further, as shown in fig. 11, the guide tube 6 and the support plate 10 are arranged in a concentric manner.

A preferred embodiment of the above embodiment with respect to the hold-down mechanism is given below:

as shown in fig. 1, 2, 3 and 10, the pressing mechanism comprises a pressing plate 2, and consists of an annular plate and a connecting plate integrally cast or welded with the annular plate, wherein the annular plate is sleeved on a guide pipe 6, and the connecting plate is connected with a flange plate 2.

Further, as shown in fig. 3 and 10, the connection plate is formed as follows: the outer edge of the annular plate horizontally protrudes outwards and then vertically extends upwards for a preset distance, and then is horizontally bent towards the annular plate to form a mounting surface for being connected with the flange plate 1. The A surface and the B surface in the flange gland assembly have the requirements of parallelism and dimensional tolerance, and are uniformly stressed, so that deformation is reduced.

Further, as shown in fig. 1, 3, 4 and 10, a rib plate 3 for reinforcing the strength of the pressing plate 2 is installed between the annular plate and the connecting plate; the outer profile of the rib plate 3 is matched with the inner profile of the connecting plate, so that the rib plate 3 can be attached to the inner side surface of the connecting plate.

Further, as shown in fig. 1, 7 and 10, the compressing mechanism further comprises a limiting ring 8 coaxially arranged with the annular plate in the pressing plate 2, and the diameter of the inner ring of the limiting ring 8 is larger than that of the inner ring of the annular plate, so that the spring 9 is limited, and the spring 9 is prevented from moving left and right.

Further, as shown in fig. 1, 5 and 11, the guide tube 6 is provided with a limiting member above the annular plate to limit the upward movement of the annular plate out of the guide tube 6.

In the preferred scheme, as shown in fig. 1, the limiting component consists of a bolt 4 and a nut 5, the bolt 4 radially penetrates through the guide tube 6, the bolt 4 is limited on the guide tube 6 through the fastening nut 5, and the annular plate is limited through the bolt 4 protruding on the guide tube 6.

Further, as shown in fig. 1 and 6, a rubber gasket 7 is installed between the circumferential surfaces of the annular plate and the guide tube 6, and the rubber gasket 7 avoids rigid contact friction, reduces the risk of clamping stagnation, and improves the neutrality of the two movable components.

In a further scheme, as shown in fig. 1, 2 and 12, the circumference of the flange plate 1 is mounted on a flange gland mounting seat 12 positioned on the top surface of the hydraulic oil tank through a plurality of fixing bolts; after the fixing bolts are removed, the oil return filter mounting device can be removed from the hydraulic oil tank.

As shown in fig. 12, a hydraulic oil tank includes a tank case 11 and an oil return filter 13 provided in the tank case 11, and the oil return filter mounting device 14 is mounted to the tank case 11.

The installation process is as follows: the spring 9 is arranged on a spring seat (figure 11), the rubber gasket 7 is arranged on a flange gland assembly (figure 10), the hole position of the pressing plate 2 is aligned with the guide pipe 6, the spring 9 can be precompressed at the moment, then the bolt 4 and the nut 5 penetrate through the reserved hole position of the guide pipe 6 to be screwed, at the moment, the device is assembled, and the whole device is arranged on the oil tank. When the device is disassembled, the whole device can be taken out only by disassembling the flange gland assembly fixing bolts from the oil tank.

In conclusion, the utility model can realize the compaction and the anti-loosening under the condition that the installation positions of the flange gland and the oil return filter are not concentric; the utility model is assembled outside the oil tank, is convenient to assemble and disassemble, and improves the reliability.

The utility model also discloses engineering machinery, which is provided with the hydraulic oil tank.

The further scheme is as follows: the construction machine includes a hydraulic excavator.

The excavator comprises a working device, a power device, a traveling device and a turning device.

The working device of the excavator mainly comprises a movable arm, a movable arm oil cylinder, a bucket rod oil cylinder, a bucket and a bucket oil cylinder.

The power device of the excavator generally adopts a diesel engine, is fixed on a turntable through a vibration reduction device, and provides power for a running gear, a turning gear, a working device and the like.

The running gear of excavator supports the complete machine quality of excavator and accomplishes the walking task, adopts crawler-type and tire formula mostly.

The turning device of the excavator turns the upper part leftwards or rightwards so as to excavate and cool the material.

The hydraulic system of the excavator transmits the power output by the engine to the working device and the traveling device.

The electric system of excavator mainly detects some temperature, pressure, speed and switching value of engine, hydraulic pump, main valve and executive component (hydraulic cylinder and hydraulic motor) and transmits the detected data to the special-purpose controller of excavator, and the controller can synthesize various measured values, set values and operation signals to send out related control information to control engine, hydraulic pump, main valve and whole machine.

In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the utility model may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features contained in other embodiments, but not others, combinations of features of different embodiments are equally meant to be within the scope of the utility model and form different embodiments. For example, in the above embodiments, those skilled in the art can use the above embodiments in combination according to known technical solutions and technical problems to be solved by the present application.

The foregoing description is only illustrative of the preferred embodiment of the present utility model, and is not to be construed as limiting the utility model, but is to be construed as limiting the utility model to any simple modification, equivalent variation and variation of the above embodiments according to the technical matter of the present utility model without departing from the scope of the utility model.

Claims

1. An oil return filter mounting device, comprising:

the elastic component is arranged on the top surface of the oil return filter in the hydraulic oil tank;

a flange gland assembly comprising:

the flange plate is detachably arranged on the hydraulic oil tank;

and the pressing mechanism is connected with the flange plate in a mode of different axes and is used for extruding the elastic component, so that the elastic component presses the oil return filter.

2. The oil return filter mounting apparatus of claim 1, wherein said resilient assembly comprises:

a spring seat, comprising:

a support plate for contacting the oil return filter;

the guide pipes are arranged on the top surface of the supporting plate in a mutually perpendicular mode;

the spring is sleeved on the guide tube, compresses the spring, and pushes the spring seat to move downwards under the elasticity of the spring to compress the oil return filter.

3. An oil return filter mounting apparatus according to claim 1 or 2, wherein the hold-down mechanism comprises:

the pressing plate consists of an annular plate and a connecting plate, the annular plate is sleeved on a guide pipe in the elastic assembly, and the connecting plate is connected with the flange plate.

4. An oil return filter mounting apparatus according to claim 3, wherein the connection plate is formed as follows:

the outer edge of the annular plate horizontally protrudes outwards and then vertically extends upwards for a preset distance, and then is horizontally bent towards the annular plate to form a mounting surface for being connected with the flange plate.

5. An oil return filter mounting apparatus according to claim 3, wherein:

a rib plate used for reinforcing the strength of the pressing plate is arranged between the annular plate and the connecting plate, and the outer side profile of the rib plate is matched with the inner side profile of the connecting plate, so that the rib plate can be attached to the inner side surface of the connecting plate;

a rubber gasket is mounted between the circumferential surfaces of the annular plate and the guide tube.

6. A return oil filter mounting apparatus as claimed in claim 3, wherein said hold-down mechanism further comprises:

and the limiting ring is coaxially arranged with the annular plate in the pressing plate, and the diameter of the inner ring of the limiting ring is larger than that of the inner ring of the annular plate and is used for limiting the spring and preventing the spring from moving left and right.

7. An oil return filter mounting apparatus according to claim 3, wherein:

the guide pipe is provided with a limiting part which is positioned above the annular plate and limits the annular plate to move upwards to be separated from the guide pipe;

the limiting part consists of a bolt and a nut, the bolt radially penetrates through the guide tube, the bolt is limited on the guide tube through the fastening nut, and the annular plate is limited through the bolt protruding on the guide tube.

8. An oil return filter mounting apparatus as claimed in claim 1, wherein:

the periphery of the flange plate is arranged on a flange gland mounting seat positioned on the top surface of the hydraulic oil tank through a plurality of fixing bolts; after the fixing bolts are removed, the oil return filter mounting device can be removed from the hydraulic oil tank.

9. The utility model provides a hydraulic tank, includes oil tank casing and is located the oil return filter of oil tank casing, its characterized in that: an oil return filter mounting device according to any one of claims 1 to 8 is mounted on the oil tank housing.

10. An engineering machine, characterized in that:

an oil return filter mounting device as claimed in any one of claims 1 to 8; alternatively, the hydraulic oil tank according to claim 9 is mounted.