External hydraulic oil filtering device of universal testing machine

Abstract

The external hydraulic oil filtering device of the universal testing machine comprises a supporting frame, an oil tank is fixedly connected to the outer wall of the top of the supporting frame, an oil pump and two shells are fixedly connected to the inner wall of the bottom of the supporting frame, and a second connecting pipe is fixedly communicated between the two shells. The feeding end and the discharging end of the oil pump are communicated with the portion, close to the oil pump, of the shell and the oil tank respectively, a mounting opening is formed in one side of the shell, a door plate is arranged in the mounting opening, a second baffle ring is fixedly connected to the inner wall of one side of the door plate and located in the shell, and a first baffle ring is fixedly connected to the circumferential inner wall of the shell. According to the filtering device, a worker can conveniently and rapidly clean and replace the filtering plate, meanwhile, the position of the sliding plate can be kept stable through matched use of the inserting rod and the inserting groove, and the inserting rod and the inserting groove can be rapidly and accurately in butt joint.

Description

TECHNICAL FIELD

[0001] The utility model relates to testing machine technical field especially relates to a kind of external hydraulic oil filter device of universal testing machine. BACKGROUND

[0002] In recent years, universal testing machine is used more and more common in various material testing fields, especially in large tonnage occasions, the testing machine of commonly used is the testing machine of hydraulic loading principle, in long time use, due to mechanical wear, hydraulic oil deterioration, hydraulic oil is contaminated.

[0003] The common solution in the industry is to shorten the hydraulic oil change cycle, add oil filters at the oil pump suction position, oil pump discharge position and hydraulic pipeline of the hydraulic system to filter the impurities in the hydraulic oil. Frequent replacement of hydraulic oil increases the user's use cost, and the addition of oil filters in the hydraulic system increases the complexity of the system. Moreover, as the use time prolongs, a lot of impurities will adhere to the filter, affecting the flow effect of the hydraulic system. Especially, the filter position is hidden, and it is extremely inconvenient to clean and replace. The entire hydraulic system needs to be disassembled and assembled on a large scale to clean and replace the filter once. SUMMARY

[0004] The utility model aims at solving the shortcomings in the prior art and provides an external hydraulic oil filter device for a universal testing machine.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] An external hydraulic oil filter device for a universal testing machine includes a support frame, an oil tank is fixedly connected to the top outer wall of the support frame, an oil pump and two housings are fixedly connected to the bottom inner wall of the support frame, a second connecting pipe is fixedly connected between the two housings, the inlet end and the outlet end of the oil pump are respectively communicated with the housing close to the oil pump and the oil tank, an installation opening is formed in one side of the housing, a door plate is arranged in the installation opening, a second stop ring is fixedly connected to the inner wall of one side of the door plate, and the second stop ring is located inside the housing, a first stop ring is fixedly connected to the circumferential inner wall of the housing, a filter plate is arranged between the first stop ring and the second stop ring, a fixed plate is fixedly connected to the top outer wall of the housing, a slot is formed in the inside of the fixed plate, a sliding plate is arranged in the slot, a protrusion is fixedly connected to the top of the sliding plate, a groove is formed in the top of the outer side of the fixed plate, and the protrusion is inserted into the groove, a rotating shaft is movably connected to the outer wall of one side of the door plate, a sliding cylinder is fixedly connected to the top of the rotating shaft, and the sliding plate slides along the sliding cylinder, a bolt assembly for limiting the height of the sliding plate is arranged on one side of the sliding cylinder.

[0007] As a further scheme of the utility model, the latch assembly comprises a plug rod, the plug rod is movably inserted on one side of the sliding cylinder, the bottom end of the sliding plate is provided with a plug groove, and the plug rod is inserted with the plug groove.

[0008] As a further scheme of the utility model, the plug rod is sleeved with a tension spring on the outer side, and the two ends of the tension spring are fixed with the sliding cylinder and the plug rod respectively.

[0009] As a further scheme of the utility model, one end of the plug rod is fixedly connected with a baffle.

[0010] As a further scheme of the utility model, the top of the shell away from the oil pump is provided with a connecting port, a first connecting pipe is fixedly communicated in the connecting port, and the first connecting pipe is communicated with the oil tank.

[0011] As a further scheme of the utility model, the inside of the mounting port is fixedly connected with a sealing ring, and the sealing ring is in contact with the door plate.

[0012] As a further scheme of the utility model, one side of the baffle is fixedly connected with a pull handle.

[0013] The utility model discloses the beneficial effect is:

[0014] 1. through the cooperation of sliding plate and fixed plate, the door plate is disassembled conveniently for staff, thereby the filter plate is removed with the second baffle ring conveniently for staff, and the filter plate is cleaned and replaced quickly for staff, saves the operation time, and the convenience of device is improved.

[0015] 2. the utility model discloses the cooperation of plug rod and plug groove, the height of sliding plate is fixed, and the position of sliding plate is kept stable, avoids the easy movement of sliding plate to influence the use effect of device, and the stability of sliding plate is improved.

[0016] 3. the utility model discloses the cooperation of protruding block and recess, the position of sliding plate is positioned, and the plug rod and plug groove are quickly and accurately docked, and the time and effort caused by repeated debugging of docking position are avoided. DRAWINGS

[0017] Figure 1 It is a kind of external hydraulic oil filter device's stereo structure schematic diagram of universal testing machine proposed in the utility model;

[0018] Figure 2 It is the support frame section view structure schematic diagram of external hydraulic oil filter device's of universal testing machine proposed in the utility model;

[0019] Figure 3 It is the sliding cylinder section view structure schematic diagram of external hydraulic oil filter device's of universal testing machine proposed in the utility model;

[0020] Figure 4 The utility model provides a kind of shell section structure schematic diagram of external hydraulic oil filter device of universal testing machine.

[0021] In the drawing: 1, oil tank;2, support frame;3, oil pump;4, shell;5, first connecting pipe;6, second connecting pipe;7, fixed plate;8, sliding cylinder;9, door plate;10, sealing ring;11, notched;12, lug;13, recess;14, sliding plate;15, baffle;16, rotating shaft;17, plug rod;18, tension spring;19, first baffle ring;20, filter plate;21, second baffle ring;22, slot. DETAILED DESCRIPTION

[0022] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. The embodiments of the present application described herein are based on the embodiments of the present application, and all other embodiments obtained by those skilled in the art without creative labor shall fall within the scope of protection of the present application.

[0023] REFERENCE Figures 1-4The utility model provides a kind of external hydraulic oil filtering device of universal testing machine, including support frame 2, the top outer wall of support frame 2 is fixed with oil tank 1 by bolt, the bottom inner wall of support frame 2 is fixed with oil pump 3 and two housings 4 by bolt, two housings 4 are fixed with second connecting pipe 6 between communication, the feed end and discharge end of oil pump 3 are communicated with the housing 4 close to oil pump 3 and oil tank 1 respectively, the top of the housing 4 away from oil pump 3 is provided with connecting port, first connecting pipe 5 is fixed in communication in connecting port, and first connecting pipe 5 is communicated with oil tank 1, oil pump 3 extracts hydraulic oil in oil tank 1, makes hydraulic oil enter into the housing 4 connected with it by first connecting pipe 5, is initially filtered by filter plate 20 in this housing 4, then is filtered secondly by second connecting pipe 6 into the housing 4 close to oil pump 3, is discharged into oil tank 1 after filtering, one side of housing 4 is provided with mounting port, mounting port is equipped with door plate 9, the inner wall of one side of door plate 9 is fixed with second blocking ring 21 by bolt, and second blocking ring 21 is located in the inside of housing 4, the circumferential inner wall of housing 4 is fixed with first blocking ring 19 by bolt, filter plate 20 is placed between first blocking ring 19 and second blocking ring 21, first blocking ring 19 and second blocking ring 21 can position filter plate 20, facilitate staff to place and install filter plate 20 quickly, the top outer wall of housing 4 is fixed with fixed plate 7 by bolt, the inside of fixed plate 7 is provided with notch 11, notch 11 is equipped with sliding plate 14, the top of sliding plate 14 is fixed with lug 12 by bolt, the top of the outside of fixed plate 7 is provided with recess 13, and lug 12 is inserted with recess 13, the outer wall of one side of door plate 9 is rotatably connected with shaft 16, the top of shaft 16 is fixed with sliding cylinder 8 by bolt, and sliding plate 14 slides along sliding cylinder 8, the side of sliding cylinder 8 is equipped with bolt assembly that limits the height of sliding plate 14, pull rod 17 is pulled back, so that it moves out of slot 22, and tension spring 18 is contracted, at this time, sliding plate 14 loses restriction, then sliding plate 14 is pushed up, so that lug 12 is separated from recess 13, then shaft 16 is rotated, so that sliding cylinder 8 drives sliding plate 14 to move, so that sliding plate 14 moves out of notch 11 by the opening of the side of fixed plate 7, at this time, door plate 9 loses restriction, staff pull back door plate 9, so that it is separated from housing 4, simultaneously, door plate 9 moves so that second blocking ring 21 drives filter plate 20 to move out of housing 4, to facilitate staff to clean and replace filter plate 20.

[0024] The utility model discloses, need explanation is, the bolt subassembly includes the plug pole 17, the plug pole 17 swing joint is inserted in the one side of slide cylinder 8, and the bottom end of sliding plate 14 is seted up with the slot 22, and the plug pole 17 is inserted with the slot 22, through the cooperation of protruding block 12 and recess 13, make the position of sliding plate 14 get the positioning, and then make the plug pole 17 with the slot 22 get the quick and accurate butt joint, and the outside sleeve joint of plug pole 17 has the tension spring 18, and the tension spring 18 is convenient for plug pole 17 and carries out the automatic reset, and the both ends of tension spring 18 are fixed with slide cylinder 8 and plug pole 17 respectively, through the cooperation of plug pole 17 and slot 22, make the height of sliding plate 14 get fixed, and then make the position of sliding plate 14 keep stable, and one end of plug pole 17 is welded with baffle 15, and the inside of installation mouth is bonded with sealing ring 10, and sealing ring 10 is contacted with door plate 9, and sealing ring 10 makes door plate 9 and the connection between casing 4 more closely, and the one side of baffle 15 is fixed with pull handle through bolt, and it is convenient for staff to move baffle 15.

[0025] Working principle: when need to disassemble filter plate 20, first pull baffle 15 back, make plug pole 17 remove slot 22, and tension spring 18 shrink, sliding plate 14 loses the restriction at this time, then push sliding plate 14 upwards, make protruding block 12 and recess 13 separate, then rotate pivot 16, make slide cylinder 8 drive sliding plate 14 and move, make sliding plate 14 remove slot 11 through the opening of fixed plate 7 side, door plate 9 loses the restriction at this time, and staff pull door plate 9 back, make it separate with casing 4, simultaneously, door plate 9 moves and makes second baffle ring 21 drive filter plate 20 and remove casing 4, and then it is convenient for staff to clean and replace filter plate 20.

[0026] The utility model has carried on the explanation through the above embodiment, and the person skilled in the art can understand that the utility model is not limited to the above embodiment, and can make more kinds of modifications according to the teaching of the utility model, and these modifications all fall within the range of the utility model claimed, and the protection scope of the utility model is defined by the attached claim and its equivalent range.

Claims

1. An external hydraulic oil filtering device of a universal testing machine, comprising a support frame (2), the top outer wall of the support frame (2) is fixedly connected with an oil tank (1), the bottom inner wall of the support frame (2) is fixedly connected with an oil pump (3) and two housings (4), the two housings (4) are fixedly connected with a second connecting pipe (6) in communication, the feeding end and the discharging end of the oil pump (3) are respectively communicated with the housing (4) close to the oil pump (3) and the oil tank (1), characterized in that, The side of the shell (4) is provided with a mounting port, the mounting port is provided with a door plate (9), one side of the door plate (9) is fixedly connected with a second blocking ring (21), and the second blocking ring (21) is located in the interior of the shell (4), the circumferential wall of the shell (4) is fixedly connected with a first blocking ring (19), the filter plate (20) is placed between the first blocking ring (19) and the second blocking ring (21), the top outer wall of the shell (4) is fixedly connected with a fixed plate (7), the interior of the fixed plate (7) is provided with a notch (11), the notch (11) is provided with a sliding plate (14), the top of the sliding plate (14) is fixedly connected with a protruding block (12), the top of the outer side of the fixed plate (7) is provided with a groove (13), and the protruding block (12) is inserted into the groove (13), one side of the door plate (9) is movably connected with a rotating shaft (16), the top of the rotating shaft (16) is fixedly connected with a sliding cylinder (8), and the sliding plate (14) slides along the sliding cylinder (8), one side of the sliding cylinder (8) is provided with a bolt assembly for limiting the height of the sliding plate (14).

2. The external hydraulic oil filtering device of a universal testing machine according to claim 1, characterized in that, The bolt assembly comprises a plug rod (17), the plug rod (17) is movably inserted into one side of the sliding cylinder (8), and the bottom end of the sliding plate (14) is provided with a plug groove (22), and the plug rod (17) is inserted into the plug groove (22).

3. The external hydraulic oil filter device of a universal testing machine according to claim 2, characterized in that, The outer side of the plug rod (17) is sleeved with a tension spring (18), and the two ends of the tension spring (18) are fixedly connected with the sliding cylinder (8) and the plug rod (17) respectively.

4. The external hydraulic oil filtering device of a universal testing machine according to claim 3, characterized in that, One end of the plug rod (17) is fixedly connected with a baffle (15).

5. The external hydraulic oil filter device of a universal testing machine according to claim 1, characterized in that, The top of one of the shells (4) away from the oil pump (3) is provided with a connecting port, the connecting port is fixedly and communicatively provided with a first connecting pipe (5), and the first connecting pipe (5) is communicated with the oil tank (1).

6. The external hydraulic oil filtering device of a universal testing machine according to claim 1, characterized in that, The interior of the mounting port is fixedly connected with a sealing ring (10), and the sealing ring (10) is in contact with the door plate (9).

7. The external hydraulic oil filter device of a universal testing machine according to claim 4, characterized in that, One side of the baffle (15) is fixedly connected with a pull handle.

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