A quick replacement device applied to a lubricating oil tank of a excavator

Abstract

The application discloses a quick replacement device applied to a lubricating oil tank of an excavator, which comprises a storage unit, the storage unit comprises an oil tank and a protective shell sleeve which is sleeved outside the oil tank, a rotary pulling-out unit which is arranged at one end of the oil tank and comprises a cover plate, a supporting frame which is arranged at one end of the cover plate, a matching pipeline which is arranged at the other end of the cover plate, a clamping piece which is arranged on the side of the matching pipeline and a stretching piece, one end of the stretching piece is coaxially arranged in the matching pipeline, the other end of the stretching piece penetrates through the cover plate and is connected with the supporting frame, and an opening and closing unit which comprises a rotating pipe and a ball valve which is arranged at the bottom of the oil tank, the rotating pipe penetrates through the oil tank, and a rotating rod is arranged in the rotating pipe, the lubricating oil can be quickly replaced, the hand is not dirty during replacement because the oil outlet is arranged at the bottom, and the replacement efficiency of the lubricating oil is improved.

Description

Technical Field

[0001] This invention relates to the field of excavator lubrication, and in particular to a quick-change device for excavator lubrication oil tanks. Background Technology

[0002] The WK-20 excavator has two types of lubricating oil tanks: a dry oil tank and a spray oil tank. Whenever the oil level is low, operators must use a Lincoln pump to add oil, and a designated person must monitor the tank to prevent spillage. During lubrication replenishment, the electric shovel cannot operate, and replenishing one tank takes an average of 40-60 minutes, wasting time and impacting production efficiency. Therefore, a device that allows for easy replacement of the lubricating oil tank is needed. Summary of the Invention

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0004] In view of the problems existing in the prior art, the present invention is proposed.

[0005] Therefore, the technical problem to be solved by the present invention is the inconvenience of replacing the lubricating oil tank.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a quick replacement device for the lubricating oil tank of an excavator, comprising a storage unit, the storage unit comprising an oil tank, and a protective shell sleeved outside the oil tank;

[0007] A rotary pull-out unit is disposed at one end of the oil tank. The rotary pull-out unit includes a cover plate, a support frame disposed at one end of the cover plate, a mating pipe disposed at the other end of the cover plate, a clip and a tensioning member disposed on the side of the mating pipe, wherein one end of the tensioning member is coaxially disposed in the mating pipe, and the other end passes through the cover plate and connects to the support frame.

[0008] The opening and closing unit includes a rotating tube and a ball valve located at the bottom of the oil tank. The rotating tube passes through the oil tank and a rotating rod is installed inside the rotating tube.

[0009] As a preferred embodiment of the quick replacement device for excavator lubricating oil tanks described in this invention, the bottom end face of the oil tank is provided with a valve hole, one end of the ball valve is provided with an oil inlet, and the oil inlet is coaxially embedded in the valve hole.

[0010] As a preferred embodiment of the quick replacement device for excavator lubricating oil tanks described in this invention, the oil tank is provided with a first cavity and a second cavity, and a baffle is provided at the connection between the first cavity and the second cavity.

[0011] As a preferred embodiment of the quick replacement device for excavator lubricating oil tanks described in this invention, the support frame includes a support rod connected to a cover plate, a square groove disposed at one end of the support rod, and a rod groove disposed at one end of the square groove.

[0012] As a preferred embodiment of the quick replacement device for excavator lubricating oil tanks described in this invention, the mating pipe has a straight groove on its side, and multiple straight grooves are arranged in a circumferential array. The side of the straight groove also has a round hole, and the side of the clip has a round rod, which is rotatably connected to the round hole.

[0013] As a preferred embodiment of the quick replacement device for excavator lubrication tank described in this invention, one end of the card and component is further provided with a card block and a first spring, and one end of the first spring is further provided with a slider.

[0014] As a preferred embodiment of the quick-change device for excavator lubrication tanks described in this invention, the tension member has a groove on its side, the slider is slidably connected to the inner wall of the groove, one end of the tension member has a second spring connected to the bottom of the mating pipe, the other end of the tension member has a connecting rod, one end of the connecting rod has a handle, the handle has a third spring connected to a square groove, and the tension member also has a coaxially arranged bevel ring.

[0015] As a preferred embodiment of the quick replacement device for the excavator lubrication tank described in this invention, wherein: a square block is provided at one end of the mating pipe, and a square hole is recessed at one end of the rotating rod, and the square block is embedded in the square hole.

[0016] As a preferred embodiment of the quick replacement device for the excavator lubricating oil tank described in this invention, the ball valve contains a ball with a through hole, one end of the ball valve has an oil outlet, the side of the ball valve has a rotation hole, and the ball has a drive rod that passes through the rotation hole.

[0017] As a preferred embodiment of the quick replacement device for excavator lubricating oil tank described in this invention, wherein: one end of the rotating rod is provided with a turntable, the turntable is provided with an arc-shaped groove, the oil outlet is slidably connected to the inner wall of the arc-shaped groove, the turntable is also provided with teeth, one end of the drive rod is provided with a gear, and the teeth mesh with the gear.

[0018] The advantages of this invention are: it facilitates the replacement and disassembly of the lubricating oil tank without soiling the workers' hands. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0020] Figure 1 This is a schematic diagram of the overall apparatus in the first and third embodiments.

[0021] Figure 2 These are schematic cross-sectional views of the fuel tank in the second and third embodiments.

[0022] Figure 3 The figures are cross-sectional views of the rotary pull-out unit in the second and third embodiments.

[0023] Figure 4 This is a schematic diagram of the explosion of the rotating pull-out unit in the second and third embodiments.

[0024] Figure 5 This is a schematic diagram of a ball valve explosion in the third embodiment.

[0025] Figure 6 This is a schematic diagram of the overall opening and closing unit in the first and third embodiments. Detailed Implementation

[0026] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0029] Example 1

[0030] Reference Figure 1 and Figure 6 This is the first embodiment of the present invention, which provides a quick-change device for the lubricating oil tank of an excavator, characterized in that it includes a storage unit 100.

[0031] The storage unit 100 includes an oil tank 101 and a protective shell 102 fitted over the oil tank 101. The outer wall of the protective shell 102 is square, and a barrel-shaped groove is formed by recessing one end of the protective shell 102. The oil tank 101 is placed in the barrel-shaped groove. By setting the protective shell 102, vibration or friction of the oil tank 101 can be effectively prevented, and the oil tank 101 can be kept clean in the harsh working environment of the excavator. The protective shell 102 is placed horizontally inside the excavator. The oil tank 101 is filled with lubricating oil. A groove cover is provided at the opening of the protective shell 102. The oil tank 101 is horizontally inserted into the protective shell 102 and the groove cover is closed, which can further protect the oil tank 101 from the influence of the working environment.

[0032] A rotary pull-out unit 200 is disposed at one end of the oil tank 101. The rotary pull-out unit 200 includes a cover plate 201, a support frame 202 disposed at one end of the cover plate 201, a mating pipe 203 disposed at the other end of the cover plate 201, a clip 204 disposed on the side of the mating pipe 203, and a tensioning member 205. One end of the tensioning member 205 is coaxially disposed inside the mating pipe 203, and the other end passes through the cover plate 201 and connects to the support frame 202. The cover plate 201 is disc-shaped, and its diameter is [not specified]. With the same diameter as the oil tank 101, when in use, first open the slot cover, then align the cover plate 201 coaxially with the oil tank 101, then insert the mating pipe 203 into the oil tank 101, pull the tensioning member 205 so that the clip and member 204 protrude from the side of the mating pipe 203, and then pull the support frame 202 outward. Since the mating pipe 203 will be stuck in the oil tank 101 under the action of the clip and member 204, the oil tank 101 will be pulled out of the protective shell 102 by the mating pipe 203.

[0033] The opening and closing unit 300 includes a rotating pipe 301 and a ball valve 302 located at the bottom of the oil tank 101. The rotating pipe 301 passes through the oil tank 101 and has a rotating rod 303 inside. A connecting pipe 203 is inserted into the rotating pipe 301 and connects to the rotating rod 303. Since the support frame 202 is fixedly connected to the cover plate 201, the cover plate 201 rotates synchronously when the support frame 202 is rotated. The connecting pipe 203 is fixedly located at the other end of the cover plate 201, so the connecting pipe 203 will rotate synchronously with the support frame 202. One end of the connecting pipe 203 is embedded in the rotating rod 303, so the rotating rod 303 will rotate synchronously with the connecting pipe 203. The rotation of the rotating rod 303 can control the opening and closing of the ball valve 302.

[0034] Example 2

[0035] Reference Figures 2-4 This is the second embodiment of the present invention, which is based on the previous embodiment. The bottom end face of the oil tank 101 is provided with a valve hole 101a, and one end of the ball valve 302 is provided with an oil inlet 302a. The oil inlet 302a is coaxially embedded in the valve hole 101a. The valve hole 101a is connected to the first cavity A, which is used to store lubricating oil. When it is necessary to discharge lubricating oil, the ball valve 302 is opened so that the lubricating oil is discharged from the oil inlet 302a. Similarly, when it is necessary to add lubricating oil to the oil tank 101, the oil tank 101 is removed from the excavator, the ball valve 302 is opened, and the lubricating oil is pumped in from the oil inlet 302a. Two identical oil tanks 101 can be set up for alternating use. After the used oil tank 101 is removed, the oil tank 101 filled with lubricating oil is directly installed, which greatly reduces the time for adding lubricating oil to the excavator and improves work efficiency.

[0036] Furthermore, the oil tank 101 is internally provided with a first cavity A and a second cavity B. A baffle 101b is provided at the connection between the first cavity A and the second cavity B. The first cavity A is used to store lubricating oil, and the second cavity B is set to be hollow. The rotating tube 301 passes through the first cavity A, and a retaining ring is provided at the end of the rotating rod 303 near the second cavity B, so that the rotating rod 303 is limited to rotating within the rotating tube 301. One end of the cooperating pipe 203 is inserted into the second cavity B. Pulling the tension member 205 causes one end of the clamp and the fitting 204 to protrude. Then, pulling back the tension member 205 will cause the clamp and the fitting 204 to be locked at the connection between the cooperating pipe 203 and the second cavity B. Continuing to pull the tension member 205 will cause the oil tank 101 to move outward under the action of the tension member 205 and the clamp and the fitting 204, and finally disengage from the protective shell 102.

[0037] Furthermore, the support frame 202 includes a support rod 202a fixedly connected to the cover plate 201, a square groove 202b disposed at one end of the support rod 202a, and a rod groove 202c disposed at one end of the square groove 202b. One end of the rotating rod 303 is embedded in the rod groove 202c. There are two support rods 202a. When the support frame 202 is rotated, the cover plate 201 will rotate synchronously with the support frame 202 under the action of the support rod 202a.

[0038] Furthermore, the side of the pipe 203 is provided with a straight groove 203a, and multiple straight grooves 203a are arranged in a circumferential array. The side of the straight groove 203a is also provided with a round hole 203a-1. The side of the clip and component 204 is provided with a round rod 204a. The round rod 204a is rotatably connected to the round hole 203a-1. The clip and component 204 will rotate under the action of the tensioning component 205, so that the protruding part of the clip and component 204 can be locked in the second cavity B, which makes it easy to pull the oil tank 101 out of the protective shell 102.

[0039] In detail, one end of the card and component 204 is also provided with a card block 204b and a first spring 204c, and one end of the first spring 204c is also provided with a slider 204d, and the card block 204b is set as a triangular inclined block.

[0040] Preferably, the side of the tension member 205 is provided with a groove 205a, and the slider 204d is slidably connected to the inner wall of the groove 205a. One end of the tension member 205 is provided with a second spring 205b, which is connected to the bottom of the inner wall of the mating pipe 203. The other end of the tension member 205 is also provided with a connecting rod 205c. One end of the connecting rod 205c, which passes through the support frame 202, is provided with a handle 205d. A third spring 205d-1 is provided on the handle 205d, which is connected to the square groove 202b. The tension member 205 is also coaxially provided with a bevel ring 205e. When the operator holds the handle 205d with his fingers and his palm against the support frame 202, the handle 205d moves, the third spring 205d-1 is stretched, and the connecting rod 205c moves towards the handle 205d. The directional displacement of the 05d moving rod causes the connecting rod 205c to move, which in turn moves the entire tension member 205. Since the slope ring 205e is fixedly mounted on the tension member 205, the slope ring 205e will move in the direction of the support frame 202. When the slope ring 205e contacts the locking block 204b, the slope ring 205e is designed with a slope that is narrower at the top and wider at the bottom. As the slope ring 205e moves, the distance between it and the locking block 204b becomes smaller and smaller, which in turn squeezes the locking block 204b. This causes the end of the locking member 204 with the locking block 204b to disengage from the straight groove 203a. The first spring 204c at the other end of the locking member 204 is compressed, and the second spring 205b is in a stretched state. At this time, when the support frame 202 is held and pulled outward, the oil tank 101 can be pulled out of the protective shell 102.

[0041] Furthermore, a block 203b is provided at one end of the fitting pipe 203, and a square hole 303a is formed at one end of the rotating rod 303. The block 203b is embedded in the square hole 303a. When the fitting pipe 203 passes through the second cavity B and the block 203b is embedded in the square hole 303a, the support frame 202 is rotated, and the fitting pipe 203 will rotate synchronously with the support frame 202. The rotation of the fitting pipe 203 causes the block 203b to rotate, which in turn drives the rotating rod 303 to rotate.

[0042] Example 3

[0043] Reference Figures 1-6 This is the third embodiment of the present invention, which is based on the previous embodiment. A ball 302b is provided inside the ball valve 302, and a through hole 302c is formed through the ball 302b. An oil outlet 302d is provided at one end of the ball valve 302, and a rotation hole 302e is provided on the side of the ball valve 302. A drive rod 302b-1 is provided on the ball 302b, and the drive rod 302b-1 passes through the rotation hole 302e. The rotation of the drive rod 302b-1 can realize the rotation of the ball 302b. When the through hole 302c is aligned with the oil outlet 302d, the lubricating oil can be delivered. When the ball 302b rotates another 90 degrees, the side of the ball 302b can block the oil outlet 302d, thereby sealing the oil tank 101. The overlapping area of ​​the through hole 302c and the oil outlet 302d can also control the flow rate of the lubricating oil.

[0044] Furthermore, a turntable 303b is provided at one end of the rotating rod 303. An arc-shaped groove 303b-1 is provided on the turntable 303b. The oil outlet 302d is slidably connected to the inner wall of the arc-shaped groove 303b-1. A tooth 303b-2 is also provided on the turntable 303b. A gear 302b-2 is provided at one end of the drive rod 302b-1. The tooth 303b-2 meshes with the gear 302b-2. A round hole is provided on the bottom end face of the protective shell 102. The oil outlet 302d extends out of the round hole. When the rotating rod 303 rotates, the turntable 303b will rotate synchronously with the rotating rod 303. The tooth 303b-2 provided on the turntable 303b will rotate synchronously. The tooth 303b-2 drives the gear 302b-2 to rotate, thereby controlling the opening and closing of the ball valve 302.

[0045] In detail, the protective housing 102 is fixedly installed on the excavator. An automatic lubrication device is connected to the bottom of the protective housing 102. This component is fully described in existing technology. The automatic lubrication system pumps the lubricating oil from the oil tank 101 to the areas requiring lubrication. When the oil tank 101 is full, it is placed inside the protective housing 102, with the cover on the protective housing 102 closed. At this time, the ball valve 302 is open to facilitate the output of lubricating oil. When the oil tank 101 needs to be replaced, the cover on the protective housing 102 is opened, and then the rotating pull-out unit 200 is aligned coaxially with the oil tank 101 to ensure proper fit. The square block 203b on pipe 203 is inserted into the square hole 303a on rotating rod 303. At this time, the handle 205d is held and rotated to engage pipe 203. The rotation of pipe 203 drives rotating rod 303, which in turn drives turntable 303b. While turntable 303b rotates, oil tank 101 does not rotate synchronously, causing oil outlet 302d to slide within arc-shaped groove 303b-1. Simultaneously, teeth 303b-2 also move. Since teeth 303b-2 mesh with gear 302b-2, gear 302b-2 rotates as teeth 303b-2 move, thus causing drive rod 302b... -1 rotation, when the drive rod 302b-1 rotates, the ball 302b will rotate. The size of the overlapping area between the through hole 302c on the ball 302b and the oil outlet 302d controls the flow rate of lubricating oil. When the ball 302b blocks the oil outlet 302d, the oil tank 101 can be sealed. After the oil tank 101 is sealed, the handle 205d is squeezed, the third spring 205d-1 on the handle 205d is stretched, the tensioning member 205 moves outward, and at the same time drives the slope ring 205e to move outward. The movement of the slope ring 205e will squeeze the end of the clamp 204 with the clamping block 204b protruding to the side. Spring 204c is stretched, and slider 204d moves within slide groove 205a. At this time, pull support frame 202 outward, and block 204b will lock at the connection between second cavity B and mating pipe 203. Continue to pull support frame 202 outward, and oil tank 101 will be pulled outward, eventually disengaging from protective housing 102. Then, oil tank 101 filled with lubricating oil is inserted into protective housing 102, so that oil outlet 302d is connected to automatic oil supply device. Then, rotate support frame 202 to open ball valve 302, and then remove rotary pull-out unit 200. Cover protective housing 102, and finally complete the lubricating oil replacement.

[0046] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A quick-change device for the lubricating oil tank of an excavator, characterized in that: include, Storage unit (100), the storage unit (100) includes an oil tank (101), and a protective shell (102) sleeved on the outside of the oil tank (101); A rotary pull-out unit (200) is disposed at one end of an oil tank (101). The rotary pull-out unit (200) includes a cover plate (201), a support frame (202) disposed at one end of the cover plate (201), a mating pipe (203) disposed at the other end of the cover plate (201), a clip and a fastener (204) disposed on the side of the mating pipe (203), and a tensioning member (205). One end of the tensioning member (205) is coaxially disposed inside the mating pipe (203), and the other end passes through the cover plate (201) and connects to the support frame (202). The opening and closing unit (300) includes a rotating tube (301) and a ball valve (302) located at the bottom of the oil tank (101). The rotating tube (301) passes through the oil tank (101), and a rotating rod (303) is provided inside the rotating tube (301). The oil tank (101) is provided with a first cavity (A) and a second cavity (B). A baffle (101b) is provided at the connection between the first cavity (A) and the second cavity (B). The first cavity (A) is used to store lubricating oil. The second cavity (B) is set to be hollow. The rotating tube (301) passes through the first cavity (A). A retaining ring is provided at the end of the rotating rod (303) near the second cavity (B), so that the rotating rod (303) is limited to rotating within the rotating tube (301). One end of the cooperating pipe (203) is inserted into the second cavity (B). A block (203b) is provided at one end of the cooperating pipe (203). A square hole (303a) is formed by the recess at one end of the rotating rod (303). The block (203b) is embedded in the square hole (303a).

2. The quick-change device for an excavator's lubricating oil tank as described in claim 1, characterized in that: The bottom end face of the oil tank (101) is provided with a valve hole (101a), and one end of the ball valve (302) is provided with an oil inlet (302a). The oil inlet (302a) is coaxially embedded in the valve hole (101a).

3. A quick-change device for an excavator's lubricating oil tank as described in claim 2, characterized in that: The support frame (202) includes a support rod (202a) connected to the cover plate (201), a square groove (202b) disposed at one end of the support rod (202a), and a rod groove (202c) disposed at one end of the square groove (202b).

4. A quick-change device for an excavator's lubricating oil tank as described in claim 3, characterized in that: The side of the fitting pipe (203) is provided with a straight groove (203a), and multiple straight grooves (203a) are arranged in a circumferential array. The side of the straight groove (203a) is also provided with a round hole (203a-1). The side of the clip and component (204) is provided with a round rod (204a), and the round rod (204a) is rotatably connected to the round hole (203a-1).

5. A quick-change device for an excavator's lubricating oil tank as described in claim 4, characterized in that: One end of the card and component (204) is also provided with a card block (204b) and a first spring (204c), and one end of the first spring (204c) is also provided with a slider (204d).

6. A quick-change device for an excavator's lubricating oil tank as described in claim 5, characterized in that: The tension member (205) has a groove (205a) on its side. The slider (204d) is slidably connected to the inner wall of the groove (205a). One end of the tension member (205) is provided with a second spring (205b), which is connected to the bottom of the mating pipe (203). The other end of the tension member (205) is also provided with a connecting rod (205c). One end of the connecting rod (205c) is provided with a handle (205d). A third spring (205d-1) is provided on the handle (205d), which is connected to the square groove (202b). A slope ring (205e) is also coaxially provided on the tension member (205).

7. A quick-change device for an excavator's lubricating oil tank as described in claim 1, characterized in that: The ball valve (302) has a ball (302b) inside, and a through hole (302c) is formed on the ball (302b). One end of the ball valve (302) is provided with an oil outlet (302d). A rotating hole (302e) is provided on the side of the ball valve (302). A drive rod (302b-1) is provided on the ball (302b), and the drive rod (302b-1) passes through the rotating hole (302e).

8. A quick-change device for an excavator's lubricating oil tank as described in claim 7, characterized in that: One end of the rotating rod (303) is provided with a turntable (303b), and an arc groove (303b-1) is provided on the turntable (303b). The oil outlet (302d) is slidably connected to the inner wall of the arc groove (303b-1). The turntable (303b) is also provided with teeth (303b-2). One end of the driving rod (302b-1) is provided with a gear (302b-2), and the teeth (303b-2) mesh with the gear (302b-2).

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