CN113669438A

CN113669438A - A gear box oil drain device

Info

Publication number: CN113669438A
Application number: CN202111093839.0A
Authority: CN
Inventors: 周皓; 张燕; 郭剑; 刘占伟; 王健岗; 朱仕红
Original assignee: Hefei Beihao Marine Equipment Technology Co ltd
Current assignee: Hefei Beihao Marine Equipment Technology Co ltd
Priority date: 2021-09-17
Filing date: 2021-09-17
Publication date: 2021-11-19
Anticipated expiration: 2041-09-17
Also published as: CN113669438B

Abstract

The invention discloses an oil draining device for a gear box, comprising an oil draining mechanism, a gear box body and a fixing seat; the bottom of the gear box body is provided with a first opening matched with the fixing seat, and the mounting hole of the fixing seat is provided with a first opening. There is an oil drain mechanism; the oil drain cover plate of the oil drain mechanism is installed on the fixed seat through bolts, an oil drain hole is arranged in the middle of the oil drain cover plate, a plug is arranged in the oil drain hole, and a drain hole is arranged above the oil drain hole. The oil sphere is provided with four inner hexagon socket head screws around the oil sphere. The invention presses the oil sphere on the oil drain hole by oil pressure and the weight of the oil sphere to form a line seal, and the sealing gasket of the outer plug Strengthen the seal to reduce the risk of leakage; when oil needs to be drained, remove the plug, use screws or oil drain pipe joints to lift up the oil drain steel ball, and put the oil into the designated container. The four hexagon socket head cap bolts around the oil-draining steel ball form a ball cage to prevent the oil-draining ball from shifting when it is jacked up, and cannot be reset after the oil-draining is completed.

Description

Gear box oil drain device

Technical Field

The invention relates to the technical field of gear oil tanks, in particular to a gear box oil drainage device.

Background

The box bodies such as the gear box and the like are cavities for storing liquid for system circulation, and the liquid for system circulation can bring a lot of impurities, or has infiltration of foreign substances, or has variation due to the fact that the liquid exceeds the quality guarantee period, and needs to be replaced regularly.

Chinese patent CN209262220U discloses a variable pitch gearbox oil filling and discharging device, which comprises a gearbox, an exhaust port, a switching valve, an oil filling port, a first air pipe, a hand pump, a second air pipe, an air pump, an oil discharging port, an oil outlet pipe and a waste oil barrel; be equipped with the gas vent on the gear box lateral wall, be equipped with the oiling mouth on the gear box lateral wall, the oiling mouth is installed one the diverter valve, a interface intercommunication of diverter valve first tracheal one end, first tracheal other end intercommunication the output of hand pump, another interface intercommunication of diverter valve the tracheal one end of second, the fixed intercommunication of the tracheal other end of second the output of air pump, the gear box bottom is equipped with the oil drain port, the oil drain port intercommunication go out the oil pipe, go out the oil pipe other end intercommunication waste oil barrel.

The traditional operating method is to open a hole at the bottom of the box and add a sealing cover plate. This approach to treatment can create several disadvantages: 1. the sealing cover plate is repeatedly disassembled during oil drainage, so that leakage is easy to occur; 2. the oil drain cover plate is usually fixed by more than four screws, so that the oil drain cover plate is not convenient to disassemble; 3. when the oil drain cover plate is detached, liquid is easy to splash and other dangers; 4. the traditional cover plate design method is not suitable for discharging oil and other liquids to a desired place by adopting an external pipeline method; 5. conventional cover plate design methods cannot assist evacuation with pumping.

Disclosure of Invention

The invention aims to solve the problems of the prior art and provides a gear box oil drain device, wherein an oil drain ball body is tightly pressed on an oil drain hole through oil pressure and the dead weight of the oil drain ball body to form linear sealing, and a sealing gasket of an outer side plug reinforces the sealing to reduce the risk of leakage; when oil drainage is needed, the plug is detached, the oil drainage steel ball is jacked up by using a screw or an oil drainage pipe joint, and oil is placed in a designated container. Four inner hexagonal cylindrical head bolts around the oil drain steel ball form a ball cage, so that the oil drain ball body is prevented from being displaced when being jacked up and cannot be reset after oil drain is completed.

The purpose of the invention can be realized by the following technical scheme:

a gear box oil drainage device comprises an oil drainage mechanism, a gear box body and a fixed seat; the bottom of the gear box body is provided with a first opening matched with the fixed seat, and an oil drainage mechanism is arranged at the mounting hole of the fixed seat;

the oil drain cover plate of the oil drain mechanism is installed on the fixing base through the bolt, an oil drain hole is formed in the middle of the oil drain cover plate, a plug is arranged in the oil drain hole, an oil drain ball body is arranged above the oil drain hole, and four pieces of inner hexagonal socket head screws are arranged on the periphery of the oil drain ball body in an annular array mode.

As a further scheme of the invention: the fixing base is installed on the bottom surface of gearbox housing, is provided with protruding hole on the fixing base, and the top in protruding hole is the oil drain hole, and the below in protruding hole is the mounting hole.

As a further scheme of the invention: the joint of the oil drain cover plate and the fixing seat is provided with an O-shaped sealing ring, the inner hexagonal socket head cap screw is obliquely arranged, and the O-shaped sealing ring is installed on the oil drain cover plate in a threaded mode.

As a further scheme of the invention: the oil drain mechanism is sleeved with a filtering piece, an elastic sleeve is arranged on an inner ring of a bottom plate of the filtering piece, an outer cover body is arranged on the top surface of the bottom plate, a plurality of groups of through holes are uniformly formed in the surface of the outer cover body, and a filtering bag is arranged in an inner cavity of the outer cover body.

As a further scheme of the invention: the outer cover body is of a cylindrical structure, the through hole is of a conical structure, and the filter bag is of a circular truncated cone-shaped structure.

As a further scheme of the invention: the filter bag is matched with the shape surrounded by four hexagon socket head cap screws, the bottom of the filter bag is connected to the bottom plate, the top of the filter bag is provided with a positioning ring, and the positioning ring is positioned on the top end of the hexagon socket head cap screws.

As a further scheme of the invention: the bottom of oil drain apron is provided with kickball mechanism, and the horizontal part of the connecting pipe of kickball mechanism passes through sealing connection head and hose connection, slides in the vertical portion of connecting pipe and is provided with the piston board, and the bottom and the piston board of ejector pin are connected, and the connecting pipe is passed on the top of ejector pin to with connecting pipe sliding connection, the top and the kickball piece of ejector pin are connected.

As a further scheme of the invention: the connecting pipe is an L-shaped pipe, and the output end of the air cylinder of the ball ejecting mechanism is connected with the sealing connector through the limiting part.

As a further scheme of the invention: the ejector pin is sleeved with a spring, the top end of the spring is connected with the inner wall of the connecting pipe, and the bottom end of the spring is connected with the piston plate.

As a further scheme of the invention: the limiting slide plate of the limiting part is arranged on the bottom surface of the oil drain cover plate, a limiting slide block is arranged on the bottom surface of the limiting slide plate in a sliding mode, and the output end of the air cylinder is connected with the limiting slide block.

The invention has the beneficial effects that:

(1) according to the oil drainage mechanism, when oil is drained, the plug is taken down, the oil drainage ball is jacked up, so that oil in the gear box body is directly drained along the oil drainage hole and the oil drain hole, and the oil is guided to a specified position; therefore, the oil drainage mechanism has the advantages of simple structure and convenient operation;

(2) the filtering piece disclosed by the invention can be used for filtering oil residue impurities during oil drainage, so that the problem that the oil needs to be further filtered after being discharged can be effectively solved, and the filtering and purifying treatment can be carried out in the oil drainage process through the filtering piece, so that the steps of treating the oil in the later period are reduced, and the oil treatment efficiency is improved;

(3) the ball ejecting mechanism can automatically eject the oil discharging ball body for oil discharging during oil discharging, so that a worker does not need to drill into the top of the gearbox body, the oil discharging ball body is ejected by a handheld tool for oil discharging, the oil discharging is realized in such a way, the ball ejecting action is rapid, and otherwise oil can be scattered on the body of the worker.

Drawings

The invention will be further described with reference to the accompanying drawings.

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

FIG. 2 is a schematic view of the filter element of the present invention;

FIG. 3 is a perspective view of the outer cover of the present invention;

FIG. 4 is a schematic perspective view of a filter bag according to the present invention;

FIG. 5 is a schematic structural view of the connection between the ball ejecting mechanism and the oil drain cover plate according to the present invention;

fig. 6 is a schematic structural view of the ball ejecting mechanism of the present invention.

In the figure: 1. an oil drain cover plate; 2. oil drainage ball body; 3. an O-shaped sealing ring; 4. a plug; 5. a socket head cap screw; 6. a gear housing; 7. a fixed seat; 8. a ball ejecting mechanism; 9. a base plate; 10. an outer cover body; 11. a filter bag; 12. a positioning ring; 13. a through hole; 14. a limiting sliding plate; 15. a cylinder; 16. a limiting slide block; 17. a hose; 18. sealing the connector; 19. a connecting pipe; 20. a ball ejecting block; 21. a top rod; 22. a piston plate; 23. a spring.

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 is a gear box oil drain device, which includes an oil drain mechanism, a gear box body 6, and a fixing seat 7; the bottom of the gearbox casing 6 is provided with a first opening matched with the fixed seat 7, the fixed seat 7 is installed on the bottom surface of the gearbox casing 6, and when the gearbox casing is installed, the sealing performance of the joint of the gearbox casing 6 is ensured, and no oil leakage occurs, the fixed seat 7 is provided with a convex hole, an oil drain hole is arranged above the convex hole, an installation hole is arranged below the convex hole, and an oil drain mechanism is arranged at the installation hole of the fixed seat 7;

the oil drainage mechanism comprises an oil drainage cover plate 1, an oil drainage ball 2, an O-shaped sealing ring 3, a plug 4 and an inner hexagonal socket head cap screw 5, the oil drainage cover plate 1 is positioned in an installation hole of a fixed seat 7, the oil drain cover plate 1 is arranged on the fixed seat 7 through a bolt, an O-shaped sealing ring 3 is arranged at the joint of the oil drain cover plate 1 and the fixed seat 7, the O-shaped sealing ring 3 ensures the sealing performance of the joint, the bolt connection is convenient for disassembling the oil drain cover plate 1, the oil drain mechanism is further convenient to disassemble and assemble, an oil drain hole is formed in the middle of the oil drain cover plate 1, a plug 4 is arranged in the oil drain hole, the plug 4 is provided with a sealing gasket and can perform secondary sealing on the oil drain hole, oil leakage is effectively prevented, an oil drain ball 2 is arranged above the oil drain hole, the oil drain ball 2 is pressed on the oil drain hole of the oil drain cover plate 1 under the action of oil pressure and self weight to form linear sealing, and four hexagon socket head cap screws 5 are arranged on the periphery of the oil drain ball 2 in an annular array manner; the inner hexagonal socket head cap screws 5 are obliquely arranged and are arranged on the oil drain cover plate 1 in a threaded manner, and the four inner hexagonal socket head cap screws 5 form a ball cage, so that when the oil drain ball body 2 is jacked up, the phenomenon that the oil drain ball body 2 is displaced and cannot be reset can be prevented;

the oil discharge mechanism specifically works as follows: when oil is drained, the plug 4 is taken down, the oil drainage ball 2 is jacked up, so that oil in the gearbox body 6 is directly drained along the oil drainage hole and the oil drain hole, and the oil is guided to a specified position; therefore, the oil drainage mechanism has the advantages of simple structure and convenient operation;

the oil drainage mechanism is sleeved with the filtering piece, the filtering piece is used for filtering oil residue impurities of the gear box body 6 during oil drainage, the problem that after oil is discharged, the oil needs to be further filtered can be effectively solved, and the filtering and purifying treatment can be carried out in the oil drainage process through the filtering piece, so that the steps of treating the oil in the later period are reduced, and the oil treatment efficiency is improved;

the filter element comprises a bottom plate 9, an outer cover body 10, a filter bag 11, a positioning ring 12 and a through hole 13; the bottom plate 9 is of an annular structure, an elastic sleeve is arranged on an inner ring of the bottom plate 9, the elastic sleeve is arranged on the inner ring, the bottom plate 9 is fixed on the inner hexagonal socket head cap screw 5 through elastic action, an outer cover body 10 is arranged on the top surface of the bottom plate 9, the outer cover body 10 is of a cylindrical structure, a plurality of groups of through holes 13 are uniformly formed in the surface of the outer cover body 10, the through holes 13 are of a conical structure, the aperture of the through holes 13 of the conical structure, which is particularly far away from the inner hexagonal socket head cap screw 5, is larger than that of the through holes close to the inner hexagonal socket head cap screw 5, and oil residue impurities can well enter the outer cover body 10 to generate a phenomenon of reverse flow;

a filter bag 11 is arranged in the inner cavity of the outer cover body 10, the filter bag 11 is matched with the shape enclosed by the four hexagon socket head cap screws 5, the filter bag 11 is of a circular truncated cone structure, the bottom of the filter bag 11 is connected to the bottom plate 9, a positioning ring 12 is arranged at the top of the filter bag 11, and the positioning ring 12 is positioned at the top end of the hexagon socket head cap screws 5; the positioning ring 12 plays a positioning role in installation, and is made of elastic materials, so that the firmness of the filter bag 11 sleeved on the inner hexagonal socket head cap screw 5 is further improved;

the filter element specifically works as follows: during oil drainage, oil in the gear box body 6 firstly passes through the through hole 13 on the outer cover body 10, then is filtered by the filter bag 11 and enters the oil drainage hole to be discharged, the oil is filtered until oil residue impurities stay in an inner cavity between the outer cover body 10 and the filter bag 11, the oil drainage cover plate 1 is disassembled, then the outer cover body 10 is disassembled, and the oil residue impurities are cleaned;

the bottom of the oil drainage cover plate 1 is provided with a ball ejecting mechanism 8, and the ball ejecting mechanism 8 comprises a cylinder 15, a hose 17, a sealing connector 18, a connecting pipe 19, a ball ejecting block 20, an ejector rod 21, a piston plate 22 and a spring 23; the connecting pipe 19 is an L-shaped pipe, the horizontal part of the connecting pipe 19 is connected with the hose 17 through the sealing connector 18, compressed gas can be introduced into an air inlet of the hose 17, a piston plate 22 is arranged in the vertical part of the connecting pipe 19 in a sliding mode, the piston plate 22 can move up and down along the connecting pipe 19, the bottom end of a mandril 21 is connected with the piston plate 22, the top end of the mandril 21 penetrates through the connecting pipe 19 and is connected with the connecting pipe 19 in a sliding mode, the top end of the mandril 21 is connected with a ball jacking block 20, a spring 23 is sleeved on the mandril 21, the top end of the spring 23 is connected with the inner wall of the connecting pipe 19, and the bottom end of the spring 23 is connected with the piston plate 22; the output end of the cylinder 15 is connected with the sealing connector 18 through a limiting part, and the specific work of the ball ejecting mechanism 8 is as follows: the cylinder 15 is controlled to work, the connecting pipe 19 moves horizontally through the limiting part and the sealing connector 18, the vertical part of the connecting pipe 19 moves to the position right below the oil discharge hole, then compressed gas is input into the hose 17, and when the compressed gas enters the inner cavity of the connecting pipe 19, when the air pressure of the inner cavity of the connecting pipe 19 is gradually increased, the spring 23 is extruded, the piston plate 22 is pushed to move upwards, the piston plate 22 drives the ball jacking block 20 to move upwards through the ejector rod 21, and the oil discharging ball 2 is jacked upwards; the gearbox housing 6 can be drained; after jacking, releasing compressed gas in the connecting pipe 19 to enable the ball jacking block 20 to reset under the action of the spring 23, and driving the connecting pipe 19 to reset through the air cylinder 15; through the arranged ball ejecting mechanism 8, the oil discharging ball body 2 can be automatically ejected to discharge oil during oil discharging, so that a worker does not need to drill into the top of the gearbox body 6, the handheld tool ejects the oil discharging ball body 2 to discharge oil, the oil discharging is realized in the mode, the ball body ejecting action is rapid, and otherwise, oil can be scattered on the body of the worker;

preferably, the limiting part comprises a limiting sliding plate 14 and a limiting sliding block 16, the limiting sliding plate 14 is installed on the bottom surface of the oil drain cover plate 1, the limiting sliding block 16 is arranged on the bottom surface of the limiting sliding plate 14 in a sliding mode, an air cylinder 15 is arranged at one end of the limiting sliding plate 14, the output end of the air cylinder 15 is connected with the limiting sliding block 16, the limiting sliding block 16 is driven to move along the limiting sliding plate 14 by controlling the work of the air cylinder 15, and the connecting pipe 19 is enabled to move more stably by the aid of the limiting sliding plate 14 and the limiting sliding block 16.

The working principle of the invention is as follows: when oil is drained, the plug 4 is taken down; then, the cylinder 15 is controlled to work, the connecting pipe 19 moves horizontally through the limiting piece and the sealing connector 18, the vertical part of the connecting pipe 19 moves to the position right below the oil discharge hole, then, compressed gas is input into the hose 17, and when the compressed gas enters the inner cavity of the connecting pipe 19, when the air pressure of the inner cavity of the connecting pipe 19 is gradually increased, the spring 23 is extruded, the piston plate 22 is pushed to move upwards, the piston plate 22 drives the ball jacking block 20 to move upwards through the ejector rod 21, and the oil discharging ball 2 is jacked upwards; the gearbox casing 6 can be drained, so that oil in the gearbox casing 6 is directly drained along the oil drain hole and the oil drain hole, and the oil is guided to a specified position; meanwhile, after the oil drainage ball 2 is jacked up, compressed gas in the connecting pipe 19 is released, so that the ball jacking block 20 is reset under the action of the spring 23, and then the connecting pipe 19 is driven to reset through the air cylinder 15.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.

Claims

1. A gear box oil drain device is characterized by comprising an oil drain mechanism, a gear box body (6) and a fixed seat (7); the bottom of the gear box body (6) is provided with a first opening matched with the fixed seat (7), and an oil drainage mechanism is arranged at a mounting hole of the fixed seat (7);

the oil drain cover plate (1) of the oil drain mechanism is installed on the fixing seat (7) through bolts, an oil drain hole is formed in the middle of the oil drain cover plate (1), a plug (4) is arranged in the oil drain hole, the oil drain ball body (2) is arranged above the oil drain hole, and four inner hexagonal socket head cap screws (5) are arranged on the periphery of the oil drain ball body (2) in an annular array mode.

2. A gearbox oil drain device according to claim 1, characterized in that the fixing seat (7) is located on the bottom surface of the gearbox housing (6), a convex hole is arranged on the fixing seat (7), an oil drain hole is arranged above the convex hole, and a mounting hole is arranged below the convex hole.

3. A gearbox oil drainage device according to claim 1, characterized in that an O-shaped sealing ring (3) is arranged at the joint of the oil drainage cover plate (1) and the fixed seat (7), and the hexagon socket head cap screw (5) is obliquely arranged and is installed on the oil drainage cover plate (1) in a threaded manner.

4. A gearbox oil drainage device according to claim 1, characterized in that the oil drainage mechanism is sleeved with a filter element, the inner ring of the bottom plate (9) of the filter element is provided with an elastic sleeve, the top surface of the bottom plate (9) is provided with an outer cover body (10), the surface of the outer cover body (10) is uniformly provided with a plurality of groups of through holes (13), and a filter bag (11) is arranged in the inner cavity of the outer cover body (10).

5. A gearbox oil drainage device according to claim 4, characterized in that the outer cover body (10) is of a cylindrical structure, the through hole (13) is of a conical structure, and the filter bag (11) is of a truncated cone structure.

6. A gearbox oil drain device according to claim 4, characterized in that the filter bag (11) is matched with the shape surrounded by four hexagon socket head cap screws (5), the bottom of the filter bag (11) is connected to the bottom plate (9), the top of the filter bag (11) is provided with a positioning ring (12), and the positioning ring (12) is positioned on the top end of the hexagon socket head cap screws (5).

7. The gearbox oil drain device according to claim 1, characterized in that a top ball mechanism (8) is arranged at the bottom of the oil drain cover plate (1), a horizontal part of a connecting pipe (19) of the top ball mechanism (8) is connected with a hose (17) through a sealing connector (18), a piston plate (22) is arranged in a vertical part of the connecting pipe (19) in a sliding mode, the bottom end of a push rod (21) is connected with the piston plate (22), the top end of the push rod (21) penetrates through the connecting pipe (19) and is connected with the connecting pipe (19) in a sliding mode, and the top end of the push rod (21) is connected with a top ball block (20).

8. A gearbox oil drain device according to claim 7, characterized in that the connecting pipe (19) is an L-shaped pipe, and the output end of the cylinder (15) of the ball ejecting mechanism (8) is connected with the sealing connector (18) through a limiting piece.

9. The gearbox oil drainage device as claimed in claim 7, wherein a spring (23) is sleeved on the ejector rod (21), the top end of the spring (23) is connected with the inner wall of the connecting pipe (19), and the bottom end of the spring (23) is connected with the piston plate (22).

10. A gearbox oil drain device according to claim 8, characterized in that a limiting slide plate (14) of the limiting member is mounted on the bottom surface of the oil drain cover plate (1), a limiting slide block (16) is slidably arranged on the bottom surface of the limiting slide plate (14), and the output end of the air cylinder (15) is connected with the limiting slide block (16).