Device for detecting sealing performance of lubricating oil filter

Abstract

The utility model discloses a lubricating oil filter airtightness detection device which comprises a lubricating oil filter airtightness detection hoisting clamp. The lubricating oil filter air tightness detection lifting clamp comprises a lifting shaft, a plurality of lubricating oil filter clamping mechanisms are assembled and connected to the lifting shaft, each lubricating oil filter clamping mechanism comprises an inner clamping seat fixedly installed on the lifting shaft, and a plurality of clamping grooves are formed in the inner clamping seats; an outer positioning ring is concentrically arranged on the inner clamping seat; a plurality of spring rod positioning pieces used for positioning the lubricating oil filter are assembled and connected to the outer positioning ring in a sliding mode. A push wheel assembly is connected to the hanging shaft in a sliding mode, the spring rod positioning piece comprises a slope base, the push wheel assembly comprises a plurality of push wheels abutting against the slope base, the push wheels are fixedly provided with a sliding disc connected to the hanging shaft in a sliding mode, and a plurality of push air cylinders pushing the sliding disc to move are installed on the hanging shaft. According to the device, the lubricating oil filter is positioned and detected in a simple, rapid and efficient mode, and the mode is high in detection efficiency and convenient to operate.

Description

Technical Field

[0001] This utility model belongs to the field of lubricating oil filter testing technology, and in particular relates to a lubricating oil filter sealing performance testing device. Background Technology

[0002] An oil filter is a filter used to filter lubricating oil. Its main structure includes a housing and a filter element installed inside the housing. During operation, when the lubricating oil that lubricates the equipment passes through the oil filter, solid impurities in the lubricating oil are trapped, thereby protecting the equipment during the lubrication process.

[0003] For example, large marine diesel engines require oil filters. Specifically, during engine operation, lubricating oil is pumped in to lubricate mechanical components such as gearboxes, reducing their operating resistance and protecting them. If the lubricating oil contains solid impurities, it not only fails to provide lubrication but can also easily damage the equipment.

[0004] Before installing the oil filter into the equipment, its sealing performance needs to be tested. This test prevents oil leakage caused by insufficient sealing after the lubricating oil is pumped into the filter. Leaks are especially likely when the pumped oil pressure is unstable.

[0005] The current testing method involves pumping testing gas into the oil filter, maintaining the pressure environment for a certain period, and then immersing it in water. If the seal is not perfect, air bubbles will form underwater. However, the shortcomings of the existing testing method are: the number of samples tested is too small, and the testing efficiency is too low. The main reason is that existing tooling fixtures cannot simultaneously lock multiple oil filters for synchronous testing. Specifically, it is difficult to quickly and synchronously position and immerse cylindrical filters in a water tank for testing. Utility Model Content

[0006] Based on the above background, the purpose of this utility model is to provide a device for testing the sealing performance of a lubricating oil filter.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] An oil filter sealing performance testing device includes an oil filter airtightness testing lifting fixture;

[0009] The airtightness testing fixture for the lubricating oil filter includes a lifting shaft, on which several lubricating oil filter clamping mechanisms are mounted and connected. Each lubricating oil filter clamping mechanism includes an inner clamping seat fixedly installed on the lifting shaft, and the inner clamping seat has several clamping slots.

[0010] The inner card slot is concentrically provided with an outer positioning ring;

[0011] The outer positioning ring is slidably connected with several spring rod positioning components for positioning the lubricating oil filter;

[0012] A pusher assembly is slidably connected to the lifting shaft, which synchronously pushes the spring rod positioning component to slide. The spring rod positioning component includes a ramp seat. The pusher assembly includes several pushers that abut against the ramp seat. Each pusher is fixedly mounted with a slide plate slidably connected to the lifting shaft. Several push cylinders are installed on the lifting shaft to push the slide plate to move. When pushed by the push cylinders, the pusher abuts against the inclined surface of the ramp seat and pushes the ramp seat to move downward. After that, the spring rod positioning component positions the oil filter.

[0013] Preferably, the spring rod positioning component further includes a positioning rod fixedly connected to the ramp seat, and the positioning rod is slidably connected to the outer positioning ring.

[0014] Preferably, a spring is sleeved on the positioning rod, and the two ends of the spring are respectively fixedly connected to the side walls of the ramp seat and the outer positioning ring facing each other.

[0015] Preferably, the outer positioning ring and the inner card seat are fixedly connected by a plurality of inner connecting rods.

[0016] Preferably, the top and bottom of the lifting shaft are respectively provided with cylinder mounting slots, and the cylinder barrel of the pushing cylinder is fixedly installed on the cylinder mounting slots.

[0017] Preferably, the longitudinal cross-sectional shape of the ramp seat is a right triangle.

[0018] Preferably, the push wheel is rotatably connected to a wheel frame, the wheel frame is fixedly mounted with a push arm, and the lower end of the push arm is fixedly mounted on the side wall of the slide plate.

[0019] Preferably, the two ends of the lifting shaft are raised and lowered by a lifting wheel mechanism;

[0020] The lifting shaft is lowered by a lifting wheel mechanism until the filter is submerged in the test water tank. After the test is completed, it is raised again by the lifting wheel mechanism.

[0021] Preferably, the lifting wheel mechanism includes a lifting ring mounted on the lifting shaft, and the lifting ring is fixedly connected to a steel wire rope;

[0022] The hanging wheel mechanism also includes a motor, the output shaft of which is fixedly connected to a hanging wheel, and the wire rope is wound on the hanging wheel.

[0023] This utility model has the following beneficial effects:

[0024] 1. During operation, the pusher contacts the inclined surface of the ramp seat (specifically, the longitudinal cross-section of the ramp seat is a right-angled triangle). As the pusher moves horizontally towards the ramp seat following the slide plate, it contacts the inclined surface. Since the slope of the ramp seat is higher at the top and lower at the bottom, the continuous pushing and contacting by the pusher causes the ramp seat to descend, carrying the positioning rod to synchronously position itself on each oil filter. This method achieves rapid and synchronous positioning of all oil filters.

[0025] 2. This method enables the positioning and testing of a certain number of oil filters in a simple, fast, and efficient manner. It is not only highly efficient but also easy to operate. After testing, as the push roller moves away, the positioning rod, aided by the spring's restoring force, quickly and synchronously releases all the oil filters. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the overall structure in an embodiment of the present utility model;

[0028] Figure 2 This is a schematic diagram of the pusher assembly in an embodiment of the present invention;

[0029] Figure 3 This is a schematic diagram of the structure of the spring rod positioning component in the embodiment of this utility model;

[0030] Figure 4 This is a schematic diagram of the hanging wheel mechanism in an embodiment of the present utility model;

[0031] Figure 5 This is a schematic diagram of the pusher assembly pushing the ramp seat in an embodiment of this utility model.

[0032] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0035] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0036] Example 1

[0037] like Figure 1-5 As shown, an oil filter sealing performance testing device includes an oil filter airtightness testing hoisting fixture.

[0038] The specific structure of the lifting fixture for testing the airtightness of lubricating oil filters is as follows:

[0039] The air tightness test fixture for lubricating oil filters includes a lifting shaft 1, on which several lubricating oil filter clamping mechanisms are mounted and connected. Each lubricating oil filter clamping mechanism can simultaneously lock multiple lubricating oil filters, thereby enabling air tightness testing after locking multiple lubricating oil filters at the same time.

[0040] Specifically, the oil filter clamping mechanism includes an inner clamping seat 22 fixedly mounted on the lifting shaft 1. The inner clamping seat 22 has several clamping slots 221 (the shape of the clamping slots 221 is an arc shape adapted to the shape of the oil filter housing). At the same time, an outer positioning ring 23 is concentrically arranged on the inner clamping seat 22 (specifically, the outer positioning ring 23 is fixedly connected to the inner clamping seat 22 by several inner connecting rods).

[0041] Meanwhile, several spring rod positioning parts 24 for positioning the lubricating oil filter are slidably connected to the outer positioning ring 23.

[0042] Specifically, the spring rod positioning component 24 has the following structure: It includes a ramp seat 241 and a positioning rod 243 fixedly connected to the ramp seat 241. The positioning rod 243 is slidably connected to the outer positioning ring 23. A spring 242 is sleeved on the positioning rod 243, and both ends of the spring 242 are fixedly connected to the side walls of the ramp seat 241 and the outer positioning ring 23 facing each other.

[0043] In order to lock the lubricating oil filter that is fed into the slot 221 at the same time (the lubricating oil filter is initially fed into the slot 221 and limited between the slot 221 and the outer positioning ring 23, but it is not locked and the stability is not high), a push wheel assembly that synchronously pushes the spring rod positioning component 24 to slide is slidably connected to the lifting shaft 1.

[0044] The positioning rod 243 is pushed and slid synchronously onto the housing of the oil filter by the pusher assembly.

[0045] Specifically, the pusher assembly includes several pushers 25 that abut against the ramp seat 241. Each pusher 25 is rotatably connected to a wheel frame, and a push arm 26 is fixedly mounted on the wheel frame. A slide plate 27 is fixedly mounted on the lower end of the push arm 26. The slide plate 27 is slidably connected to the lifting shaft 1.

[0046] Meanwhile, the top and bottom of the lifting shaft 1 are respectively equipped with a push cylinder 28 for moving the sliding plate 27 (the top and bottom of the lifting shaft 1 are respectively provided with cylinder mounting grooves 11, and the cylinder barrel of the push cylinder 28 is fixedly installed on the cylinder mounting groove 11). The piston rod of the push cylinder 28 is fixedly installed on the sliding plate 27.

[0047] During operation, the pusher 25 abuts against the inclined surface of the ramp seat 241 (specifically, the longitudinal cross-sectional shape of the ramp seat 241 is a right triangle). As the pusher 25 moves horizontally towards the ramp seat 241 following the slide plate 27, it abuts against the inclined surface of the ramp seat 241. Since the inclined surface of the ramp seat 241 is higher at the top and lower at the bottom, the ramp seat 241 descends under the continuous pushing and abutting of the pusher 25, and the positioning rod 243 is simultaneously positioned on each lubricating oil filter.

[0048] This method enables rapid and synchronous positioning of all oil filters. After positioning, following existing airtightness testing procedures, the operator connects the testing equipment (the testing vent hose on the testing equipment) to the oil filter (e.g., to the inlet pipe, while keeping the outlet pipe blocked, such as by tightening the sealing cap). After maintaining a certain pressure, the air is introduced into the water tank (not shown in the diagram). Filters with poor airtightness will clearly produce air bubbles. The testing equipment (not shown in the diagram) is standard existing airtightness testing equipment, such as a testing air pump.

[0049] This method enables the simple, fast, and efficient positioning and testing of a certain number of oil filters. It is not only highly efficient but also easy to operate. After testing, as the pusher 25 moves away, the positioning rod 243, under the action of the spring's restoring force, quickly and synchronously releases all the oil filters.

[0050] Example 2

[0051] like Figure 1-5 As shown, in this embodiment, based on the structure of Embodiment 1, the two ends of the aforementioned hanging shaft 1 are raised and lowered via a hanging wheel mechanism. The lifting and lowering mechanism allows the entire device to be lowered into the water tank during the testing process, and then quickly lifted up after the testing is completed.

[0052] Specifically, the lifting mechanism includes a lifting ring 31 mounted on the lifting shaft 1, with a steel wire rope 3 fixedly connected to the lifting ring 31; the lifting mechanism also includes a motor 4, the output shaft of which is fixedly connected to a sheave 42, and the steel wire rope 3 is wound on the sheave 42. In existing methods, the motor 4 is fixedly mounted on a work frame via a fixed motor mount 41. During operation, the motor 4 synchronously and rapidly raises and lowers the lifting shaft 1 to complete the inspection by winding or unwinding the sheave 42.

[0053] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A device for testing the sealing performance of a lubricating oil filter, characterized in that, Including lifting fixtures for testing the airtightness of lubricating oil filters; The airtightness testing fixture for the lubricating oil filter includes a lifting shaft, on which several lubricating oil filter clamping mechanisms are mounted and connected. Each lubricating oil filter clamping mechanism includes an inner clamping seat fixedly installed on the lifting shaft, and the inner clamping seat has several clamping slots. The inner card slot is concentrically provided with an outer positioning ring; The outer positioning ring is slidably connected with several spring rod positioning components for positioning the lubricating oil filter; The lifting shaft is slidably connected to a pusher assembly that synchronously pushes the spring rod positioning component to slide. The spring rod positioning component includes a ramp seat. The pusher assembly includes several pushers that respectively abut against the ramp seat. The pushers are fixedly mounted with slide plates that are slidably connected to the lifting shaft. Several pusher cylinders that push the slide plates to move are mounted on the lifting shaft.

2. The lubricating oil filter sealing performance testing device according to claim 1, characterized in that, The spring rod positioning component also includes a positioning rod fixedly connected to the ramp seat, and the positioning rod is slidably connected to the outer positioning ring.

3. The lubricating oil filter sealing performance testing device according to claim 2, characterized in that, A spring is sleeved on the positioning rod, and the two ends of the spring are fixedly connected to the side walls of the ramp seat and the outer positioning ring facing each other.

4. The lubricating oil filter sealing performance testing device according to claim 2, characterized in that, The outer positioning ring and the inner card seat are fixedly connected by several inner connecting rods.

5. The lubricating oil filter sealing performance testing device according to claim 1, characterized in that, The top and bottom of the lifting shaft are respectively provided with cylinder mounting slots, and the cylinder barrel of the push cylinder is fixedly installed on the cylinder mounting slots.

6. The lubricating oil filter sealing performance testing device according to claim 1, characterized in that, The longitudinal cross-sectional shape of the ramp seat is a right triangle.

7. The lubricating oil filter sealing performance testing device according to claim 1, characterized in that, The push wheel is rotatably connected to a wheel frame, and a push arm is fixedly installed on the wheel frame. The lower end of the push arm is fixedly installed on the side wall of the slide plate.

8. The lubricating oil filter sealing performance testing device according to claim 1, characterized in that, The two ends of the lifting shaft are raised and lowered by a lifting wheel mechanism; The lifting shaft is lowered by a lifting wheel mechanism until the filter is submerged in the test water tank. After the test is completed, it is raised again by the lifting wheel mechanism.

9. The lubricating oil filter sealing performance testing device according to claim 8, characterized in that, The gantry mechanism includes a lifting ring mounted on a lifting shaft, and a steel wire rope is fixedly connected to the lifting ring. The hanging wheel mechanism also includes a motor, the output shaft of which is fixedly connected to a hanging wheel, and the wire rope is wound on the hanging wheel.

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