Auxiliary device for assembling hydraulic main valve pipeline of excavator

Abstract

The utility model belongs to the technical field of excavator component assembly, and particularly relates to an excavator hydraulic main valve pipeline assembly auxiliary device which comprises a first-stage foot board, an oil storage tank and a positioning column. An oil storage tank is arranged on the upper surface of the first-stage foot board; the oil storage tank is of a tank body structure with an opening in the upper end, and a filter screen is detachably arranged at the opening end of the oil storage tank. An oil discharge pipe is arranged on one side wall of the oil storage tank, guide plates which are inclined upwards are arranged on the other three side walls of the oil storage tank, and through holes are formed in the guide plates; one end of the positioning column is fixedly arranged on the first-stage treading table, and the other end penetrates through a through hole in the guide plate and then is connected with the hydraulic main valve. The flow guide plate is installed on the side wall of the oil storage tank, hydraulic oil can flow into the collecting groove through the flow guide plate when flowing along the positioning column from top to bottom, the filter screen is detachably arranged at the opening end of the oil storage tank, sundries can be prevented from falling into the oil storage tank, and the oil storage tank is convenient to clean. And splashing during oil dripping can be avoided to a certain extent.

Description

Technical Field

[0001] The utility model belongs to the technical field of excavator component assembly, in particular to an auxiliary device for assembling a hydraulic main valve pipeline of an excavator. Background Art

[0002] The statements in this section merely provide background technical information related to the present invention and do not necessarily constitute prior art.

[0003] As the working weight of the excavator increases, the volume and weight of the hydraulic main valve also increase accordingly. Auxiliary devices are usually required when assembling the hydraulic main valve pipeline; the auxiliary devices usually consist of a platform, an oil storage tank and a positioning column, and the hydraulic main valve is installed on the positioning column.

[0004] However, the oil storage tank on the existing auxiliary device is generally a closed structure, and the hydraulic oil in the oil storage tank is discharged through the oil drain pipe. Due to its flat bottom, the oil is not completely drained; and the closed structure also makes maintenance difficult and oil leakage difficult to detect.

[0005] In addition, since the positioning column is arranged on the outside of the oil tank, when the hydraulic oil flows from the high main valve to the orifice plate of the oil tank, it is easy to cause oil splashing; the hydraulic oil is also easy to flow from top to bottom along the positioning column to the foot pedal position, causing the device and the ground to be dirty and difficult to clean. Utility Model Content

[0006] In order to overcome the above-mentioned deficiencies in the prior art, the utility model provides an auxiliary device for assembling a hydraulic main valve pipeline of an excavator.

[0007] To achieve the above objectives, one or more embodiments of the present invention provide the following technical solutions:

[0008] The first aspect of the utility model provides an auxiliary device for assembling a hydraulic main valve pipeline of an excavator, comprising: a first-stage step, an oil storage tank and a positioning column;

[0009] An oil storage tank is provided on the upper surface of the first-level step;

[0010] The oil storage tank is a box structure with an opening at the upper end, and a filter screen is detachably provided at the open end of the oil storage tank; an oil drain pipe is provided on one side wall of the oil storage tank, and guide plates are provided on the other three side walls in an upwardly inclined manner, and through holes are provided on the guide plates;

[0011] One end of the positioning column is fixedly arranged on the first-level step, and the other end passes through the through hole on the guide plate and is connected to the hydraulic main valve.

[0012] Furthermore, a V-shaped bottom plate is provided at the inner bottom end of the oil storage tank, the V-shaped bottom plate is arranged obliquely, and the end close to the oil drain pipe is the lower end.

[0013] Furthermore, a second step is provided on the first step.

[0014] Furthermore, there are two secondary steps, which are symmetrically arranged on both sides of the oil tank.

[0015] Furthermore, a bracket is provided at the bottom of the secondary step.

[0016] Furthermore, a ball valve is provided on the oil discharge pipe of the oil storage tank.

[0017] Furthermore, baffles are provided at both ends of the guide plate, and the guide plate, the baffle and the side wall of the oil storage tank form a guide groove.

[0018] Furthermore, the oil storage tank is provided with a guide hole on the side wall of the guide plate which penetrates the side wall of the oil storage tank.

[0019] Furthermore, a handle is provided at one end of the first-level step.

[0020] Furthermore, wheels are provided at the four corners of the bottom of the first-level step.

[0021] One or more of the above technical solutions have the following beneficial effects:

[0022] (1) In the utility model, a guide plate is installed on the side wall of the oil storage tank, so that when the hydraulic oil flows from top to bottom along the positioning column, the hydraulic oil can flow into the collection tank through the guide plate, and then flow into the interior of the oil storage tank through the guide hole opened on the side wall of the oil storage tank; and a filter net is detachably provided at the open end of the oil storage tank, which can not only prevent debris from falling into the interior of the oil storage tank, but also can avoid splashing when the oil drips to a certain extent.

[0023] (2) The bottom of the oil storage tank in the utility model is provided with a V-shaped bottom plate, and the V-shaped bottom plate is inclined, and the end of the V-shaped bottom plate close to the oil drain pipe of the oil storage tank is the lower end, which is convenient for fully discharging the hydraulic oil in the oil storage tank, thereby solving the problem of incomplete oil drainage caused by the flat bottom of the existing oil storage tank.

[0024] Advantages of additional aspects of the present invention will be partially given in the following description, and partially become apparent from the following description, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0026] Figure 1 This is a structural diagram of an auxiliary device for assembling the hydraulic main valve pipeline of an excavator according to Example 1.

[0027] Figure 2 This is a schematic diagram of the internal structure of the oil storage tank of Example 1.

[0028] Figure 3 This is a schematic diagram of the V-shaped bottom plate structure of Example 1.

[0029] Figure 4 This is a schematic diagram of the filter structure of Example 1.

[0030] In the figure, 1. handle, 2. first step, 3. wheel, 4. frame, 5. second step, 6. guide groove, 7. oil storage tank, 701 groove, 8. oil drain pipe, 9. ball valve, 10. second step, 11. first positioning column, 12. filter screen, 1201 square tube, 1202 supporting steel plate, 13. second positioning column, 14. V-shaped bottom plate. DETAILED DESCRIPTION

[0031] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0032] Embodiment 1

[0033] like Figure 1 As shown, the utility model provides an auxiliary device for assembling the hydraulic main valve pipeline of an excavator, comprising: a first-stage step 2, an oil storage tank 7 and a positioning column;

[0034] An oil storage tank 7 is provided on the upper surface of the first step 2. The oil storage tank 7 is a box structure with an opening at the upper end. A filter screen 12 is detachably provided at the open end of the oil storage tank 7. An oil drain pipe 8 is provided on one side wall of the oil storage tank 7. The oil drain pipe 8 is connected to the inside of the oil storage tank. A guide plate 6 is provided on the other three side walls of the oil storage tank 7 and a through hole is provided on the guide plate 6.

[0035] One end of the positioning column is fixedly arranged on the first-stage step 2, and the other end passes through the through hole on the guide plate 6 and is connected to the hydraulic main valve.

[0036] The utility model designs the oil storage tank as an open structure with an open end at the upper end. The open end of the oil storage tank is detachably provided with a filter screen, and the inside of the box body can be exposed after the filter screen is removed, so that the box body can be easily inspected and repaired and iron filings and sundries can be cleaned.

[0037] The utility model arranges a guide plate on the side wall of the oil storage tank, the guide plate is arranged to be inclined upward, and can collect the hydraulic oil flowing out of the hydraulic main valve to prevent the hydraulic oil from flowing onto the step platform and the ground.

[0038] As a further technical solution, Figure 2 , Figure 3As shown, a V-shaped bottom plate 14 is provided at the inner bottom end of the oil storage tank 7. The V-shaped bottom plate 14 is tilted, and there is a height difference at both ends of the V-shaped bottom plate. The end of the V-shaped bottom plate close to the oil storage tank drain pipe is the lower end, which is convenient for the hydraulic oil in the oil storage tank to be discharged from the oil storage tank drain pipe.

[0039] As a further technical solution, the positioning column includes a first positioning column 11 and a second positioning column 13. The number of the first positioning columns 11 is 2, which are symmetrically arranged on both sides of the oil tank 7; the number of the second positioning columns 13 is 2, and the two second positioning columns 13 are arranged in parallel on one side of the oil tank 7 close to the first-stage platform handle 1.

[0040] The first positioning column 11 and the second positioning column 13 have the same structure, both of which are square tube structures. Support steel plates are welded between the two first positioning columns 11 and between the two second positioning columns 13. The support steel plates are arranged at the top of the positioning columns to support the hydraulic main valve. Bolts are also arranged at the top of the second positioning column 13 to fix the hydraulic main valve. By fastening the hydraulic main valve to the positioning column, the pipe joints, plugs and other components on the main valve can be disassembled and production work such as pipeline assembly can be performed.

[0041] As a further technical solution, a secondary step 5 is further provided on the primary step 2. There are two secondary steps 5, which are symmetrically arranged on both sides of the oil storage tank 7. A bracket is provided at the bottom of the secondary step 5, and the height of the secondary step 5 is increased by the bracket. The utility model can provide support when installing the side wall pipeline of the hydraulic main valve by arranging the secondary step on the primary step.

[0042] As a further technical solution, a ball valve is provided on the oil drain pipe 8 of the oil storage tank. The oil drain pipe 8 is made of a stainless steel pipe. The ball valve is provided on the oil drain pipe to prevent hydraulic oil from dripping onto the ground and causing dirt on the ground.

[0043] As a further technical solution, baffles are provided at both ends of the guide plate 6, and the guide plate and the baffle are an integrated sheet metal bending part. The guide plate, the baffle and the side wall of the oil storage tank form a guide groove; and, a guide hole penetrating the side wall of the oil storage tank is also opened on the side wall of the oil storage tank where the guide plate is provided, and the hydraulic oil flowing into the guide groove can flow into the interior of the oil storage tank through the guide hole.

[0044] When the hydraulic oil in the main valve flows downward from top to bottom along the positioning column, it can flow into the oil storage tank through the guide groove, preventing the oil from flowing to the foot pedal position and causing dirt on the ground.

[0045] As a further technical solution, Figure 4 As shown, the filter screen 12 is a stainless steel perforated plate, and a square tube 1201 and a supporting steel plate 1202 are welded at both ends thereof;

[0046] A groove 701 for accommodating the square tube is provided on the side wall of the oil storage tank where the oil drain pipe is provided. By placing the square tube 1201 on the filter net in the groove and overlapping the supporting steel plate 1202 on the filter net on the side wall of the oil storage tank, a detachable connection between the oil storage tank and the filter net is achieved.

[0047] The utility model sets a filter screen at the upper end of the oil storage tank, and increases the density of the filter screen holes (number of holes). At the same time, the filter screen is detachable, which is convenient for dumping the plugs, plastics and other debris scattered on the filter screen. Moreover, when the hydraulic oil flows from the high main valve to the filter screen, it can prevent the oil from splashing to a certain extent.

[0048] As a further technical solution, a frame 4 is provided around the first-level step 2, a handle 1 is provided at one end of the first-level step 2, the handle 1 is a rectangular frame structure, and the handle 1 is tilted, and the bottom end is connected to the first-level step 2 through a column; wheels 3 are provided at the four corners of the bottom of the first-level step 2. The utility model facilitates the movement of the device by welding the handle and the wheels on the first-level step.

[0049] Although the above describes the specific implementation methods of the utility model in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the utility model. Technical personnel in the relevant field should understand that on the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the utility model.

Claims

1. An auxiliary device for assembling the hydraulic main valve pipeline of an excavator, characterized in that: include: First stage platform, oil storage tank and positioning column; An oil storage tank is provided on the upper surface of the first-level step; The oil storage tank is a box structure with an opening at the upper end, and a filter screen is detachably provided at the open end of the oil storage tank; an oil drain pipe is provided on one side wall of the oil storage tank, and guide plates are provided on the other three side walls in an upwardly inclined manner, and through holes are provided on the guide plates; One end of the positioning column is fixedly arranged on the first-level step, and the other end passes through the through hole on the guide plate and is connected to the hydraulic main valve.

2. The auxiliary device for assembling the hydraulic main valve pipeline of an excavator according to claim 1, characterized in that: A V-shaped bottom plate is arranged at the inner bottom end of the oil storage tank. The V-shaped bottom plate is arranged obliquely, and the end close to the oil drain pipe is the lower end.

3. The auxiliary device for assembling the hydraulic main valve pipeline of an excavator according to claim 1, characterized in that: The first-level step is also provided with a second-level step.

4. The auxiliary device for assembling the hydraulic main valve pipeline of an excavator according to claim 3, characterized in that: There are two secondary steps, which are symmetrically arranged on both sides of the oil storage tank.

5. The auxiliary device for assembling the hydraulic main valve pipeline of an excavator according to claim 3, characterized in that: A bracket is provided at the bottom of the secondary step platform.

6. The auxiliary device for assembling the hydraulic main valve pipeline of an excavator according to claim 1, characterized in that: A ball valve is arranged on the oil discharge pipe of the oil storage tank.

7. The auxiliary device for assembling the hydraulic main valve pipeline of an excavator according to claim 1, characterized in that: Baffles are arranged at both ends of the guide plate, and the guide plate, the baffle and the side wall of the oil storage tank form a guide groove.

8. The auxiliary device for assembling the hydraulic main valve pipeline of an excavator according to claim 1, characterized in that: The side wall of the oil storage tank provided with the guide plate is provided with a guide hole penetrating the side wall of the oil storage tank.

9. The auxiliary device for assembling the hydraulic main valve pipeline of an excavator according to claim 1, characterized in that: A handle is provided at one end of the first-level step.

10. The auxiliary device for assembling the hydraulic main valve pipeline of an excavator according to claim 1, characterized in that: Wheels are arranged at the four corners of the bottom of the first-level step.

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