CN213840427U

CN213840427U - Oil level constant position device

Info

Publication number: CN213840427U
Application number: CN202022441091.6U
Authority: CN
Inventors: 何启亮; 查振海
Original assignee: NANFANG PUMP INDUSTRY CO LTD
Current assignee: NANFANG PUMP INDUSTRY CO LTD
Priority date: 2020-10-28
Filing date: 2020-10-28
Publication date: 2021-07-30
Anticipated expiration: 2030-10-28

Abstract

The utility model discloses an oil level constant position device, which relates to the field of bearing box lubrication and comprises a sight glass seat, an oil level sight glass, an oil cup seat and an oil cup, wherein a certain amount of lubricating oil is injected into the inner cavity of a bearing box body; one end of the sight glass seat is fixedly provided with an oil level sight glass, and the other end of the sight glass seat is fixedly arranged on the bearing box body and communicated with the inner cavity of the bearing box body; the oil cup base is installed on the sight glass base in an inserted mode, the oil cup is fixedly installed on the oil cup base in an inverted mode, a floater is arranged in the oil cup, the floater always floats on the lubricating oil level and moves up and down along with the lifting of the oil level, a sensing device is arranged on the side wall of the oil cup and used for sensing the position of the floater in the oil cup base in real time, and a terminal interface electrically connected with the sensing device is further arranged on the side wall of the oil cup base and used for outputting electric signals outwards. The utility model is simple and convenient to install, and can inform relevant departments in time when the oil cup has no oil compensation, and arrange oil filling or automatically fill oil through oil filling equipment; the quality reduction caused by direct contact between the lubricating oil and the air is avoided; avoid the bearing chamber to lack oil and lead to equipment damage.

Description

Oil level constant position device

Technical Field

The utility model relates to a lubricated field of bearing box, concretely relates to oil level constant position device.

Background

The constant-position oil cup in the prior art has the function of keeping the lubricating oil level in the bearing box body constant. When the oil cup is used, firstly, a proper amount of lubricating oil is added into a bearing box, then, the oil cup is filled with the oil, the oil cup is inversely arranged on a leading-out pipe of the bearing box, at the moment, an oil level with a certain height is arranged in the leading-out pipe, after the oil cup is arranged, an oil pipe of the oil cup is immersed below the liquid level of the lubricating oil in the bearing box, the formula P is FS, the area of the lubricating oil in the oil box is far larger than the area of lubricating oil in the oil cup, and the oil cup are simultaneously under the action of atmospheric pressure, so the pressure in the oil box is larger than the pressure of the oil cup, at the moment, the oil cup can not supplement the oil to the bearing box, after the lubricating oil in the bearing box is consumed, the liquid level of the lubricating oil is reduced until the oil pipe of the oil cup is communicated with the atmosphere, air enters the oil cup, and at the moment, the oil cup can automatically supplement the oil under the action of the air pressure.

The prior structure has the following defects:

1. the inclined surface position and the oil level on the oil pipe in the oil cup are required to be adjusted for multiple times to keep consistent with the scale of an oil level mirror on the oil tank;

2. after the oil in the oil cup is compensated, warning cannot be given, so that the phenomenon of oil shortage of the bearing chamber cannot be effectively avoided, and the requirement of automatic control of a modern factory cannot be met;

3. because the connecting pipe of the oil cup seat is arranged below the oil level line, the oil cup is provided with a vent hole communicated with the atmosphere, and the vent hole can absorb water vapor and dust in the air, thereby causing pollution to oil products;

4. the installation process is relatively complicated, and the cost of enterprises is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the not enough of prior art existence, and provide an oil level constant position device, have the advantage that the installation is simple and convenient, oil level automatic monitoring, sealing performance are good.

The purpose of the utility model is accomplished through following technical scheme: an oil level constant position device is fixedly arranged on a bearing box body, a pump shaft sleeved with a bearing is arranged in an inner cavity of the bearing box body, the device comprises a sight glass seat, an oil level sight glass, an oil cup seat and an oil cup, and a certain amount of lubricating oil is injected into the inner cavity of the bearing box body, so that an oil level line is coincided with a horizontal center line of a ball at the lowest part of the bearing; an oil level sight glass is fixedly arranged at one end of the sight glass seat, and the other end of the sight glass seat is fixedly arranged on the bearing box body and communicated with the inner cavity of the bearing box body; the upper end face of the sight glass base is provided with a through hole for inserting installation of the oil cup base, an oil cup filled with lubricating oil is reversely and fixedly installed on the oil cup base, a floater is arranged in the oil cup, the density of the floater is smaller than that of the lubricating oil, the floater is guaranteed to always float on the lubricating oil surface and move up and down along with the lifting of the oil surface, a sensing device is arranged on the side wall of the oil cup and used for sensing the position of the floater in the oil cup base in real time, and a terminal interface electrically connected with the sensing device is further arranged on the side wall of the oil cup base and used for outputting an electric signal outwards. The oil cup seat is connected with the sight glass seat in a sealing way through a sealing ring; the oil cup base is provided with a limiting step, the tail part of the oil cup base is provided with an oil outlet pipe with an inclined plane, and the oil level of the inclined plane of the oil outlet pipe is consistent with the oil level line after the oil cup base is completely inserted into the sight glass base.

As a further technical scheme, the oil cup is made of transparent plastics.

As a preferable technical scheme, the sensing device is a hall sensor, and a magnet is installed in the floater.

Preferably, the sensing device is a photoelectric sensor, and a light source is installed in the float.

As a further technical scheme, a partition plate is arranged on the inner wall of one side of the oil cup, so that the floater can only move between the inner wall of the oil cup and the partition plate.

As a further technical scheme, the oil level sight glass is in sealing connection with the sight glass seat through a sealing gasket.

The utility model has the advantages that:

1. the oil level requirement that the inclined surface position and the oil level on an oil pipe in the oil cup need to be adjusted for many times and the working efficiency is improved and is ensured is solved;

2. the phenomenon of oil shortage of the bearing chamber is avoided, induction is generated and an electric signal is output through the Hall sensor arranged on the oil cup and the magnet in the floater, the automatic control requirement is realized, and the requirements of a factory are met;

3. the problem of the decline of lubricating oil quality caused by the air vent that has to be equipped with on the oil cup is solved, through the design that oil level sight glass and oil cup seat are installed at the sight glass seat integratively to use the sealing washer sealed guarantee lubricating oil not to receive the pollution.

Drawings

FIG. 1 is a structural sectional view of embodiment 1.

Fig. 2 is a schematic perspective view of the present invention.

Fig. 3 is a schematic structural view of the oil cup holder.

Description of reference numerals: the oil level gauge comprises a bearing box body 01, a bearing 02, lubricating oil 03, a sight glass seat 04, an oil level sight glass 05, a sealing gasket 06, a sealing ring 07, an oil cup seat 08, a limiting step 081, an oil outlet pipe 082, a Hall sensor 09, a floater 10, a magnet 11, an oil cup 12, a partition plate 121 and a terminal interface 13.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings:

example 1: as shown in the attached drawing 1, an oil level constant position device is fixedly arranged on a bearing box body 01, a pump shaft of a bearing 02 is sleeved in the inner cavity of the bearing box body 01, the device comprises a sight glass seat 04, an oil level sight glass 05, an oil cup seat 08 and an oil cup 12, and a certain amount of lubricating oil is injected into the inner cavity of the bearing box body 01 through an oil filling hole formed in the bearing box body 01, so that an oil level line is coincident with a horizontal center line of a ball at the lowest part of the bearing 02 (as shown in the attached drawing 1); an oil level sight glass 05 is fixedly arranged at one end of the sight glass seat 04, the oil level sight glass 05 is hermetically connected with the sight glass seat 04 through a sealing gasket 06, and the other end of the sight glass seat 04 is in threaded connection with the bearing box body 01 and is communicated with the inner cavity of the bearing box body 01; a through hole is formed in the upper end face of the sight glass base 04 and used for mounting the oil cup base 08 in an inserting manner, and the oil cup base 08 is hermetically connected with the sight glass base 04 through a sealing ring 07; as shown in fig. 3, a limiting step 081 is arranged on the oil cup base 08, and an oil outlet pipe 082 with an inclined plane is arranged at the tail of the oil cup base 08, so that the oil level of the inclined plane of the oil outlet pipe 082 is consistent with the oil level line after the oil cup base 08 is completely inserted into the sight glass base 04; an oil cup 12 filled with lubricating oil is connected to an oil cup base 08 in an inverted threaded manner, the oil cup 12 is generally made of transparent plastics, so that the change of the liquid level of the internal lubricating oil can be observed directly, a floater 10 is arranged in the oil cup 12, the floater 10 is made of light plastics, the density of the floater 10 is smaller than that of the lubricating oil, the floater is guaranteed to float on the lubricating oil surface all the time and move up and down along with the lifting of the oil surface, and preferably, a partition plate 121 is arranged on the inner wall of one side of the oil cup 12, so that the floater 10 can only move between the inner wall of the oil cup 12 and the partition plate 121; the side wall of the oil cup 12 is provided with a sensing device (in this embodiment, the hall sensor 09) for sensing the position of the floater 10 in the oil cup base 08 in real time (the magnet 11 is installed in the floater 10), and the side wall of the oil cup base 08 is further provided with a terminal interface 13 electrically connected with the hall sensor 09 for outputting an electrical signal outwards.

The working process of the embodiment: when the oil level indicator is installed, the oil level indicator 05 is screwed into the oil level indicator seat 04 and sealed through the sealing gasket 06, the oil level indicator seat 04 is installed on the bearing box body 01, lubricating oil 03 is added to the oil level line shown in figure 1 through the oil filling hole in the bearing box body 01, namely the central line position of the ball below the bearing 02, the oil level line is determined through the position mark on the oil level indicator 05, and the oil cup 12 is connected with the oil cup seat 08 through threads to form a closed space. After the oil cup 12 and the oil cup seat 08 are installed in place, lubricating oil is poured into the oil cup 12 to be filled, then the oil cup seat 08 is quickly inserted into the sight glass seat 04, the oil cup seat 08 is inserted into the size position (the limiting step 081 and the position where the sight glass seat 04 is clamped) of the sight glass seat 04, namely, the oil cup seat is installed in place, and sealing is carried out through the sealing ring 07 to guarantee the quality of oil products. A terminal interface 13 is arranged at the side of the oil cup 12 and can output an electric signal, when the oil cup 12 is full of lubricating oil, the floater 10 is positioned at the upper end of the oil cup 12, and the Hall sensor 09 at the upper end of the floater 10 generates induction with the magnet 11 in the floater 10, so that an electric signal value is output; on the contrary, when the lubricating oil in the oil cup 12 is not full, the floater 10 is positioned at the lower end of the oil cup 12 and can also sense the Hall sensor 09 at the lower end to output an electric signal value, and the electric signal value is amplified and then provided for the user equipment. Therefore, the oil level in the bearing box body 01 can be controlled, and the automatic control is realized through the linkage of peripheral refueling equipment, so that the requirement of constant oil level is met. Meanwhile, the oil level sight glass 05 and the oil cup seat 12 are integrally arranged on the sight glass seat 04, so that a vent hole is not needed to be arranged, and then the seal ring 07 is used for sealing, so that the lubricating oil 03 in the oil cup 12, the sight glass seat 04 and the bearing box body 01 is prevented from being polluted by water vapor, dust and the like.

Example 2: the difference from embodiment 1 is that the sensing device is a photoelectric sensor (instead of the hall sensor 09) and that a light source (instead of the magnet 11) is installed in the float 10, i.e. the sensing device monitors the position of the float 10 by means of the photoelectric effect.

It should be understood that equivalent substitutions or changes to the technical solution and the inventive concept of the present invention should be considered to fall within the scope of the appended claims for the skilled person.

Claims

1. The utility model provides an oil level constant position device, adorns admittedly on bearing box (01), bearing box (01) inner chamber sets up the pump shaft that the cover was equipped with bearing (02), its characterized in that: the oil level detection device comprises a sight glass seat (04), an oil level sight glass (05), an oil cup seat (08) and an oil cup (12), wherein a certain amount of lubricating oil is injected into an inner cavity of a bearing box body (01), so that an oil level line is coincided with a horizontal center line of a ball at the lowest part of a bearing (02); an oil level sight glass (05) is fixedly arranged at one end of the sight glass seat (04), and the other end of the sight glass seat (04) is fixedly arranged on the bearing box body (01) and communicated with the inner cavity of the bearing box body (01); the upper end surface of the sight glass seat (04) is provided with a through hole for inserting and mounting an oil cup seat (08), an oil cup (12) filled with lubricating oil is reversely and fixedly mounted on the oil cup seat (08), a floater (10) is arranged in the oil cup (12), the density of the floater (10) is smaller than that of the lubricating oil, the floater always floats on the lubricating oil surface and moves up and down along with the lifting of the oil surface, a sensing device is arranged on the side wall of the oil cup (12) and used for sensing the position of the floater (10) in the oil cup seat (08) in real time, and a terminal interface (13) electrically connected with the sensing device is further arranged on the side wall of the oil cup seat (08) and used for outputting an electric signal outwards; the oil cup seat (08) is connected with the sight glass seat (04) in a sealing way through a sealing ring (07); the oil cup seat (08) is provided with a limiting step (081), the tail part of the oil cup seat (08) is provided with an oil outlet pipe (082) with an inclined plane, and the oil level of the inclined plane of the oil outlet pipe (082) is consistent with the oil level line after the oil cup seat (08) is completely inserted into the sight glass seat (04).

2. The oil level constant position device according to claim 1, characterized in that: the oil cup (12) is made of transparent plastic.

3. The oil level constant position device according to claim 1, characterized in that: the induction device is a Hall sensor (09), and a magnet (11) is installed in the floater (10).

4. The oil level constant position device according to claim 1, characterized in that: the sensing device is a photoelectric sensor, and a light source is installed in the floater (10).

5. The oil level constant position device according to claim 1, characterized in that: a partition plate (121) is arranged on the inner wall of one side of the oil cup (12), so that the floater (10) can only move between the inner wall of the oil cup (12) and the partition plate (121).

6. The oil level constant position device according to claim 1, characterized in that: the oil level sight glass (05) is connected with the sight glass seat (04) in a sealing mode through a sealing gasket (06).