Oil return device additionally arranged on end cover of quick release valve of electro-hydraulic hammer

Abstract

The utility model discloses an electro-hydraulic hammer quick release valve end cover added oil return device which comprises a valve end cover and a fastening bolt, an oil collecting groove device is arranged below the valve end cover, the bottom end of the oil collecting groove device is connected with an oil guide pipe in a penetrating mode, and the other end of the oil guide pipe is fixedly connected with a return stroke main oil tank pipeline in a penetrating mode through a handle type valve. And an oil passing protection device for protecting hydraulic oil is arranged between the oil collecting groove device and the valve end cover. By arranging the valve end cover, the fastening bolt, the oil collecting groove device, the oil guide pipe and the return stroke main oil tank pipeline, hydraulic oil recycling is achieved, and pollution and potential safety hazards caused by the fact that a large amount of hydraulic oil flows to an equipment body are avoided. And by arranging the oil passing protection device and the locking assembly, the hydraulic oil is prevented from splashing, and meanwhile the situation that particle dust and the like pollute the hydraulic oil and affect recycling of the hydraulic oil is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of forging equipment technical field, in particular to electric hydraulic hammer quick release valve end cover additional oil return device. BACKGROUND

[0002] Electric hydraulic hammer quick release valve is located at the side of energy accumulator, and its main function is to control the opening and closing of oil port by the relative movement of valve core and valve body. When hydraulic oil flows into from the inlet, it enters the inside of quick release valve through the channel on the valve core. When the valve core moves to a certain position, the outlet of quick release valve is opened, and hydraulic oil is discharged quickly to realize the reciprocating action of hammer head. The valve core inevitably appears wear phenomenon in continuous movement, and the existing electric hydraulic hammer quick release valve is only pressed tightly by a end cover and fixed by eight bolts.

[0003] The disadvantage of prior art is that a large amount of hydraulic oil will flow out after opening the end cover when replacing or repairing the valve core each time, which causes the equipment to be full of oil stains, seriously pollutes the equipment, and a fire accident will occur once the flowing hydraulic oil contacts with hot material being forged. SUMMARY

[0004] The utility model aims at providing electric hydraulic hammer quick release valve end cover additional oil return device, which can fully realize the timely recovery of flowing hydraulic oil into main oil tank, so as to achieve the recycling of hydraulic oil and avoid the pollution and safety hazard caused by a large amount of hydraulic oil flowing onto the main body of the equipment.

[0005] To achieve the above-mentioned purpose, electric hydraulic hammer quick release valve end cover additional oil return device is provided, which comprises valve end cover and fastening bolt. An oil collecting groove device is arranged below the valve end cover. A guide pipe is connected to the bottom end of the oil collecting groove device. A return main oil tank pipeline is connected to the other end of the guide pipe through a lever handle type valve. An oil passing protection device is arranged between the oil collecting groove device and the valve end cover to protect hydraulic oil.

[0006] The oil passing protection device comprises a rotating frame. Protection plates are rotatably connected to the left and right side inner walls of the rotating frame. A buffer cavity is formed in the middle of the protection plate. An oil passing pipe is connected to the bottom end of the buffer cavity. A baffle is fixed to the other end of the oil passing pipe. A locking hole is formed in the top plate side wall of the protection plate. A side plate is welded and fixed to the top of the rotating frame. A locking assembly is arranged on the top end side wall of the side plate to lock the locking hole.

[0007] According to the electric hydraulic hammer quick release valve end cover additional oil return device, the valve end cover is fixedly installed on the side of energy accumulator by fastening bolt.

[0008] According to the electric hydraulic hammer quick release valve end cover additional oil return device, the side walls of the oil collecting groove device and the rotating frame are tightly welded with the energy accumulator oil tank body above the hydraulic hammer.

[0009] According to the oil return device of the electric hydraulic hammer quick release valve end cover, the baffle is fixedly installed on the top of the oil collecting groove device.

[0010] According to the oil return device of the electric hydraulic hammer quick release valve end cover, the protective plate is provided with a rubber pad bonded to the side wall of the valve end cover.

[0011] According to the oil return device of the electric hydraulic hammer quick release valve end cover, the buffer cavity corresponds to the position of the valve end cover.

[0012] According to the oil return device of the electric hydraulic hammer quick release valve end cover, the locking assembly comprises a fixing ring fixedly connected to the top end side wall of the side plate, a spring fixed to the other side of the fixing ring, and a plug fixed to the other end of the spring, wherein the end of the plug penetrates the side wall of the side plate and corresponds to the position of the locking hole.

[0013] According to the oil return device of the electric hydraulic hammer quick release valve end cover, the oil guide pipe is made of a silicon rubber high-temperature resistant material pipe, and the oil collecting device is made of stainless steel.

[0014] The utility model has the advantages of the following beneficial effects:

[0015] 1. Compared with the prior art, the valve end cover, the fastening bolt, the oil collecting groove device, the oil guide pipe and the return main oil tank pipeline are arranged, the hydraulic oil flowing out of the energy storage oil tank is collected in the oil collecting groove device, is transported to the return main oil tank pipeline through the oil guide pipe and is then sent back to the oil tank, so that the hydraulic oil is recycled, and pollution and safety hazards caused by a large amount of hydraulic oil flowing to the equipment main body are avoided.

[0016] 2. Compared with the prior art, the oil passing protective device and the locking assembly are arranged, the protective plate shields the oil outlet after the valve end cover is disassembled, and the baffle shields the opening of the oil collecting groove device, so that the hydraulic oil is prevented from splashing, particles and dust are prevented from polluting the hydraulic oil and affecting the recycling and use of the hydraulic oil. BRIEF DESCRIPTION OF DRAWINGS

[0017] The utility model will be further described below in combination with the drawings and examples;

[0018] Figure 1 It is a perspective view of the oil return device of the electric hydraulic hammer quick release valve end cover of the utility model; Figure 1 ;

[0019] Figure 2 It is a perspective view of the oil return device of the electric hydraulic hammer quick release valve end cover of the utility model; Figure 2 ;

[0020] Figure 3 It is a perspective view of the oil passing protective device of the oil return device of the electric hydraulic hammer quick release valve end cover of the utility model;

[0021] Figure 4 Figure 1 is a perspective view of the locking assembly of the oil return device added to the electro-hydraulic hammer fast release valve end cover according to the present application.

[0022] Legend:

[0023] 1, valve end cover; 2, fastening bolt; 3, oil collecting groove device; 4, oil guide pipe; 5, return main oil tank pipeline; 6, oil passage protection device; 7, locking assembly; 601, rotating frame; 602, protection plate; 6021, locking hole; 603, buffer cavity; 604, oil passage pipe; 605, baffle; 606, side plate; 607, rubber pad; 701, fixing ring; 702, spring; 703, plug. DETAILED DESCRIPTION

[0024] This part will describe the specific embodiments of the present application in detail, the preferred embodiments of the present application are shown in the drawings, the role of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the present application, but it cannot be understood as a limitation on the protection scope of the present application.

[0025] Reference Figures 1-4 , the oil return device added to the electro-hydraulic hammer fast release valve end cover of the present application embodiment, which comprises a valve end cover 1, a fastening bolt 2, the valve end cover 1 is fixedly installed on the side of the energy storage device through the fastening bolt 2, and the lower part of the valve end cover 1 is provided with an oil collecting groove device 3, the bottom end of the oil collecting groove device 3 is connected with an oil guide pipe 4, the other end of the oil guide pipe 4 is connected with a return main oil tank pipeline 5 through a wrench type valve, the oil guide pipe 4 is made of a silicon rubber high-temperature resistant material pipe, the oil collecting device 3 is made of stainless steel, and the oil collecting groove device 3 is provided with an oil passage protection device 6 for protecting the hydraulic oil between the oil collecting groove device 3 and the valve end cover 1; through the valve end cover 1, the fastening bolt 2, the oil collecting groove device 3, the oil guide pipe 4 and the return main oil tank pipeline 5, in actual use, first, the wrench type valve is placed in an open state, when the fastening bolt 2 on the end cover is removed, the hydraulic oil flowing out of the energy storage tank is collected in the oil collecting groove device 3, transported to the return main oil tank pipeline 5 through the oil guide pipe 4 and then sent back to the tank, realizing the recycling of the hydraulic oil. After replacement, the wrench type valve is placed in a closed state, preventing the hydraulic oil from leaking when the electro-hydraulic hammer is in a working state. Avoiding the pollution and safety hazards caused by the large amount of hydraulic oil flowing to the main body of the equipment.

[0026] The oil protection device 6 comprises a rotating frame 601, and the oil collecting groove device 3 and the side wall of the rotating frame 601 are tightly welded with the energy storage oil tank above the liquid hammer. The left and right side inner walls of the rotating frame 601 are rotationally connected with a protection plate 602. The side wall of the protection plate 602 rotationally facing the valve end cover 1 is bonded with a rubber pad 607. The middle of the protection plate 602 is provided with a buffer cavity 603, which corresponds to the position of the valve end cover 1. The bottom end of the buffer cavity 603 is connected with an oil pipe 604. The other end of the oil pipe 604 is connected with a baffle 605. The baffle 605 is fixedly installed on the top of the oil collecting groove device 3. The top plate side wall of the protection plate 602 is provided with a locking hole 6021. The top of the rotating frame 601 is welded with a side plate 606. The top end side wall of the side plate 606 is provided with a locking assembly 7 which is locked with the locking hole 6021.

[0027] The locking assembly 7 comprises a fixed ring 701 which is fixedly connected with the top end side wall of the side plate 606. The other side of the fixed ring 701 is fixedly connected with a spring 702. The other end of the spring 702 is fixedly connected with a plug 703. The end of the plug 703 penetrates the side wall of the side plate 606. The plug 703 corresponds to the position of the locking hole 6021. Through the oil protection device 6 and the locking assembly 7, after the valve end cover 1 is disassembled, the hydraulic oil first falls into the buffer cavity 603 of the protection plate 602, enters the oil collecting groove device 3 through the oil pipe 604, and then the plug 703 is pulled and the protection plate 602 is turned up, until the locking hole 6021 is aligned with the plug 703. Then the spring 702 of the plug 703 is contracted to push the plug 703 into the locking hole 6021, and the protection plate 602 is limited. The protection plate 602 shields the oil outlet, and the baffle 605 shields the opening of the oil collecting groove device 3, which avoids the spatter of hydraulic oil and the pollution of particles and dust to the hydraulic oil, and affects the recycling of hydraulic oil.

[0028] Working principle: when in use, first, the wrench valve is placed in the open state. When replacing the quick release valve in the valve end cover 1, the fastening bolt 2 on the end cover is disassembled. The hydraulic oil flowing out of the energy storage tank first falls into the buffer cavity 603 of the protection plate 602, enters the oil collecting groove device 3 through the oil pipe 604, and then the plug 703 is pulled and the protection plate 602 is turned up, until the locking hole 6021 is aligned with the plug 703. Then the spring 702 of the plug 703 is contracted to push the plug 703 into the locking hole 6021, and the protection plate 602 is limited. The protection plate 602 is conveyed to the return main oil tank pipeline 5 through the oil pipe 4 and then is sent back to the oil tank, realizing the recycling of hydraulic oil. After replacement, the wrench valve is placed in the closed state, preventing the hydraulic oil from leaking when the electro-hydraulic hammer is in the working state, avoiding the pollution and safety hazards caused by the large amount of hydraulic oil flowing to the main body of the equipment.

[0029] The utility model embodiment makes the detailed explanation in combination with the drawing, but the utility model is not limited to the above -mentioned embodiment, still can make various changes in the knowledge range of ordinary skill in the art person who has possessed under the premise of not departing from the utility model tenet.

Claims

1. An oil return device for an end cover of a fast bleed valve of an electro-hydraulic hammer, characterized in that, Including valve end cover (1), fastening bolt (2), the lower part of the valve end cover (1) is provided with oil collecting groove device (3), the bottom of the oil collecting groove device (3) is connected with oil guide pipe (4), the other end of the oil guide pipe (4) is connected with return main oil tank pipeline (5) through the handle type valve, the oil collecting groove device (3) and the valve end cover (1) are provided with oil passing protection device (6) for protecting hydraulic oil; The oil passing protection device (6) comprises a rotating frame (601), the left and right side inner walls of the rotating frame (601) are rotatably connected with protection plates (602), a buffer cavity (603) is formed in the middle of the protection plate (602), the bottom of the buffer cavity (603) is connected with an oil passing pipe (604), the other end of the oil passing pipe (604) is connected with a baffle (605), a locking hole (6021) is formed in the top wall side wall of the protection plate (602), the top of the rotating frame (601) is welded with a side plate (606), the top end side wall of the side plate (606) is provided with a locking assembly (7) which is locked with the locking hole (6021).

2. The oil return device for a fast valve end cover of an electro-hydraulic hammer according to claim 1, characterized in that, The valve end cover (1) is fixedly installed on the side of the energy accumulator by the fastening bolt (2).

3. The oil return device for a fast valve end cover of an electro-hydraulic hammer according to claim 1, characterized in that, The side walls of the oil collecting groove device (3) and the rotating frame (601) are tightly welded with the energy storage oil tank body above the liquid hammer.

4. The oil return device for a fast valve end cover of an electro-hydraulic hammer according to claim 1, characterized in that, The baffle (605) is fixedly installed on the top of the oil collecting groove device (3).

5. The oil return device for a fast valve end cover of an electro-hydraulic hammer according to claim 1, characterized in that, The side wall of the protection plate (602) rotating towards the valve end cover (1) is bonded with a rubber pad (607).

6. The oil return device for a fast-opening valve end cover of an electro-hydraulic hammer according to claim 1, wherein The buffer cavity (603) corresponds to the position of the valve end cover (1).

7. The oil return device for a fast valve end cover of an electro-hydraulic hammer according to claim 1, characterized in that, The locking assembly (7) comprises a fixed ring (701) fixedly connected with the top end side wall of the side plate (606), the other side of the fixed ring (701) is fixedly connected with a spring (702), the other end of the spring (702) is fixedly connected with a plug (703), the tail end of the plug (703) penetrates the side wall of the side plate (606), and the plug (703) corresponds to the position of the locking hole (6021).

8. The oil return device for a fast-opening valve end cover of an electro-hydraulic hammer according to claim 1, characterized by, The oil guide pipe (4) is made of a silicon rubber high-temperature-resistant material pipe, and the oil collecting groove device (3) is made of stainless steel.

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