CN219062401U

CN219062401U - Forced lubrication device for crankshaft transmission

Info

Publication number: CN219062401U
Application number: CN202223499652.3U
Authority: CN
Inventors: 陈依军; 唐飞; 李�昊; 陈健
Original assignee: Nanjing Yalong Petrochemical Equipment Technology Co ltd
Current assignee: Nanjing Yalong Petrochemical Equipment Technology Co ltd
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-05-23
Anticipated expiration: 2032-12-27

Abstract

The utility model discloses a forced lubrication device for crank drive, which belongs to the field of lubrication systems and comprises a crank, a bearing seat, an overflow valve and a lubrication pump outlet, wherein a crank bearing is arranged at an opening at one end of the bearing seat, the crank is arranged at the crank bearing, an inner cavity of the bearing seat forms a lubrication oil inner box, the seat body of the bearing seat is provided with the overflow valve connected with the lubrication oil inner box and a cavity at the crank bearing, and the upper end of the bearing seat is provided with the lubrication pump outlet for injecting oil into the lubrication oil inner box. According to the forced lubrication device for the crank transmission, the sealing and fixing between the forced lubrication device and the bearing seat are realized through the fixing sleeve and the baffle ring, lubricating oil entering the overflow valve, the crank shaft and the crank shaft bearing can be simply filtered through the first filtering sponge and the second filtering sponge, impurities in the lubricating oil are effectively prevented from entering the overflow valve, the crank shaft and the crank shaft bearing, accumulation of the impurities in the overflow valve, the crank shaft and the crank shaft bearing is reduced, and maintenance and cleaning time intervals are increased.

Description

Forced lubrication device for crankshaft transmission

Technical Field

The utility model relates to the field of lubrication systems, in particular to a forced lubrication device for crankshaft transmission.

Background

The crankshaft is subjected to the combined action of centrifugal force of the rotating mass, periodically-changed gas inertia force and reciprocating inertia force, so that the crankshaft is subjected to bending and torsion load; therefore, the crankshaft transmission needs to be lubricated, so that excessive wear is reduced;

the Chinese patent publication No. CN205638905U is a forced lubrication system for a pump body power end, which comprises an oil suction pipe, a gear oil pump, an oil discharge pipe, a lubricating oil pump overflow valve and a crankcase, wherein the gear oil pump is arranged on the outer end surface of a high-speed shaft end cover, a first fixed disc is arranged on a driving shaft of the gear oil pump, a wear-resistant sleeve is sleeved on the driving shaft, and a mounting groove matched with the wear-resistant sleeve is formed in one end of the high-speed shaft, facing the gear oil pump;

the crankcase is lubricated by the patent, and a lubricating oil pump overflow valve is adopted, and a crankshaft bearing is arranged in the crankcase; when the existing overflow valve of the lubricating oil pump, the crankshaft bearing and the crankshaft are used, because the lubricating oil inevitably contains some impurities, the impurities are accumulated after long-time use, and therefore the overflow valve, the crankshaft and the crankshaft bearing are detached for cleaning and maintenance;

to above-mentioned problem, this application sets up a filtration equipment in the lubricating oil storage department of bearing frame, can carry out effectual filtration to the lubricating oil that gets into overflow valve, bent axle and crank bearing, reduces the accumulation of impurity in overflow valve, bent axle and the crank bearing, increases to overhaul abluent interval.

Disclosure of Invention

The utility model mainly aims to provide a forced lubrication device for crank transmission, which can effectively solve the problems in the background technology.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the forced lubrication device for the crank transmission comprises a crank shaft, a bearing seat, an overflow valve and a lubrication pump outlet, wherein a crank bearing is arranged at an opening at one end of the bearing seat, the crank shaft is arranged at the crank bearing, an inner cavity of the bearing seat forms a lubrication oil inner box, the body of the bearing seat is provided with the overflow valve connected with the lubrication oil inner box and a cavity at the crank bearing, the upper end of the bearing seat is provided with the lubrication pump outlet for injecting oil towards the lubrication oil inner box, and the lubrication pump outlet is connected with a lubrication oil suction pipe through a lubrication oil pump;

a fixed sleeve is arranged at the communicating part of the overflow valve of the lubricating oil inner box, one end of the fixed sleeve is provided with a baffle ring, and an oil inlet bin is formed by the fixed sleeve and the inner cavity of the baffle ring;

the upper end recess of fixed cover forms first cavity, and is equipped with the first filtration sponge that is used for blockking impurity entering overflow valve in the intracavity of first cavity, oil outlet and oil feed storehouse intercommunication have been seted up to the chamber wall of first cavity, the outer end recess of backing ring forms the second cavity, and is equipped with the second filtration sponge that is used for blockking impurity entering bent axle and crank shaft bearing in the second cavity, the second cavity passes through oil outlet and oil feed storehouse intercommunication, oil feed storehouse is through filtering sponge injection lubricating oil to bent axle and crank shaft bearing department realization lubrication.

The fixed sleeve and the baffle ring are integrally punched, and the fixed sleeve is fixedly sealed in the lubricating oil inner box of the bearing seat;

wherein, the oil outlet arranged at the first chamber is opposite to the communication position of the overflow valve and the lubricating oil inner box;

the inner ring hole of the baffle ring is matched with the inner ring wall of the lubricating oil inner box, and the inner ring hole of the baffle ring is sealed with the lubricating oil inner box through a sealing ring;

wherein, first filtration sponge and second are the ring design, and first filtration sponge and second are filtered the sponge and are all adopted V type inserted sheet to run through the oil outlet and fix.

Compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, aiming at the problem that the overflow valve, the crankshaft and the crankshaft bearing on the bearing seat are required to be frequently disassembled and cleaned, the fixing device and the filtering equipment are arranged at the position of the lubricating oil inner box, the sealing and the fixing with the bearing seat are realized through the fixing sleeve and the baffle ring, and then the lubricating oil entering the overflow valve, the crankshaft and the crankshaft bearing can be simply filtered through the first filtering sponge and the second filtering sponge, so that impurities in the lubricating oil are effectively prevented from entering the positions of the overflow valve, the crankshaft and the crankshaft bearing, the accumulation of the impurities in the overflow valve, the crankshaft and the crankshaft bearing is reduced, and the time interval for overhauling and cleaning is increased.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is an enlarged schematic view of FIG. 1 at A;

FIG. 3 is a schematic representation of the retaining sleeve and filter sponge of the present utility model;

fig. 4 is an exploded view of the retaining sleeve and filter sponge of the present utility model.

In the figure: 1. a crankshaft; 2. a crankshaft bearing; 3. a bearing seat; 4. an overflow valve; 5. a lubrication pump outlet; 6. a lubricant suction pipe; 7. an inner lubricant tank; 8. a fixed sleeve; 9. an oil inlet bin; 10. an oil outlet hole; 11. a first filter sponge; 12. a first chamber; 13. a baffle ring; 14. a second chamber; 15. and a second filter sponge.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

As shown in fig. 1-4, a forced lubrication device for crank drive comprises a crank shaft 1, a bearing seat 3, an overflow valve 4 and a lubrication pump outlet 5, wherein a crank bearing 2 is arranged at an opening at one end of the bearing seat 3, the crank shaft 1 is arranged at the crank bearing 2, an inner cavity of the bearing seat 3 forms a lubrication oil inner box 7, the body of the bearing seat 3 is provided with the overflow valve 4 connected with the lubrication oil inner box 7 and a cavity at the crank bearing 2, the upper end of the bearing seat 3 is provided with the lubrication pump outlet 5 for injecting oil into the lubrication oil inner box 7, and the lubrication pump outlet 5 is connected with a lubrication oil suction pipe 6 through a lubrication oil pump;

the crankshaft 1 is arranged in the crankshaft bearing 2 and is connected with the bearing seat 3, an annular lubricating oil inner box 7 is formed in the inner cavity of the bearing seat 3, the lubricating oil inner box 7 is communicated with the overflow valve 4 and the lubricating oil pump outlet 5, lubricating oil is injected through the lubricating oil pump outlet 5, the side wall of the lubricating oil inner box 7 is used for lubricating the crankshaft bearing 2 and the crankshaft 1, and two ports of the overflow valve 4 are communicated with the lubricating oil inner box 7, the crankshaft bearing 2 and the crankshaft 1 respectively to form cavities.

The communicating part of the overflow valve 4 of the lubricating oil inner box 7 is provided with a fixed sleeve 8, one end of the fixed sleeve 8 is provided with a baffle ring 13, and the inner cavities of the fixed sleeve 8 and the baffle ring 13 form an oil inlet bin 9;

the upper end groove of fixed cover 8 forms first cavity 12, be equipped with in the intracavity of first cavity 12 and be used for blockking impurity entering overflow valve 4 filter sponge 11, oil outlet 10 and oil feed storehouse 9 intercommunication have been seted up to the chamber wall of first cavity 12, the outer end groove of baffle ring 13 forms second cavity 14, be equipped with in the second cavity 14 and be used for blockking impurity entering crankshaft 1 and crank bearing 2's second filter sponge 15, second cavity 14 communicates with oil feed storehouse 9 through oil outlet 10, oil feed storehouse 9 is through filtering sponge injection lubricating oil to crankshaft 1 and crank bearing 2 department realization lubrication.

The two edges of the first chamber 12 cover the communication part of the overflow valve 4 and the lubricating oil inner box 7, the oil outlet 10 is opposite to the communication part of the overflow valve 4 and the lubricating oil inner box 7, the first filtering sponge 11 in the first chamber 12 filters lubricating oil once, impurities in the lubricating oil are prevented from entering the overflow valve 4, the second chamber 14 is opposite to the communication part of the crankshaft 1 and the crankshaft bearing 2 and the lubricating oil inner box 7, and the second filtering sponge 15 is also adopted to filter the lubricating oil once, so that the filtering operation of the lubricating oil at the crankshaft 1 and the crankshaft bearing 2 can be realized.

The fixed sleeve 8 and the baffle ring 13 are integrally punched, and the fixed sleeve 8 is fixedly sealed in the lubricating oil inner box 7 of the bearing seat 3; the oil outlet 10 arranged at the first chamber 12 is opposite to the communication position of the overflow valve 4 and the lubricating oil inner box 7; the inner ring hole of the baffle ring 13 is matched with the inner ring wall of the lubricating oil inner box 7, and the inner ring hole of the baffle ring 13 is sealed with the lubricating oil inner box 7 through a sealing ring.

The first filtering sponge 11 and the second filtering sponge 15 are in a circular ring design, and the first filtering sponge 11 and the second filtering sponge 15 are fixed by adopting V-shaped inserting sheets to penetrate through the oil outlet 10.

The first filtering sponge 11 and the second filtering sponge 15 can be designed by adopting double-layer filtering cotton, each layer of the double-layer filtering cotton has different filtering pore diameters, the pore diameter of the inner-layer filtering cotton is larger than that of the outer-layer filtering cotton, the double-layer filtering cotton can improve the filtering effect, and the multi-layer filtering cotton can be used for filtering operation.

According to the utility model, the fixing device and the filtering equipment are arranged at the lubricating oil inner box, the sealing and the fixing with the bearing seat are realized through the fixing sleeve and the baffle ring, and lubricating oil entering the overflow valve, the crankshaft and the crankshaft bearing can be simply filtered through the first filtering sponge and the second filtering sponge, so that impurities in the lubricating oil are effectively prevented from entering the overflow valve, the crankshaft and the crankshaft bearing, the accumulation of the impurities in the overflow valve, the crankshaft and the crankshaft bearing is reduced, and the maintenance and cleaning time interval is increased;

the foregoing is a description of the preferred embodiments of the present utility model and the technical principles applied thereto, and it will be apparent to those skilled in the art that any equivalent transformation, simple substitution, etc. based on the technical scheme of the present utility model can be made without departing from the spirit and scope of the present utility model.

Claims

1. The utility model provides a crank drive's forced lubrication device, includes bent axle (1), bearing frame (3), overflow valve (4) and lubricating oil pump export (5), the one end opening part of bearing frame (3) is equipped with crank bearing (2), and crank bearing (2) department is equipped with bent axle (1), the inner chamber of bearing frame (3) forms lubricating oil inner box (7), and be equipped with on the pedestal of bearing frame (3) with lubricating oil inner box (7) and crank bearing (2) department cavity connection's overflow valve (4), the upper end of bearing frame (3) is equipped with lubricating oil pump export (5) towards lubricating oil inner box (7) oiling, and lubricating oil pump export (5) are connected with lubricating oil suction pipe (6) through the lubricating oil pump, its characterized in that: a fixed sleeve (8) is arranged at the communication part of the overflow valve (4) of the lubricating oil inner box (7), one end of the fixed sleeve (8) is provided with a baffle ring (13), and an oil inlet bin (9) is formed by the fixed sleeve (8) and the inner cavity of the baffle ring (13);

the upper end recess of fixed cover (8) forms first cavity (12), and the intracavity of first cavity (12) is equipped with and is used for blockking impurity entering overflow valve (4) first filtration sponge (11), oil outlet (10) and oil feed storehouse (9) intercommunication have been seted up to the chamber wall of first cavity (12), the outer end recess of baffle ring (13) forms second cavity (14), and is equipped with in second cavity (14) and be used for blockking impurity entering crankshaft (1) and crank bearing (2) second filtration sponge (15), second cavity (14) are through oil outlet (10) and oil feed storehouse (9) intercommunication, oil feed storehouse (9) are through filtering sponge injection lubricating oil to crankshaft (1) and crank bearing (2) department realization lubrication.

2. A forced lubrication device for a crank drive according to claim 1, wherein: the fixed sleeve (8) and the baffle ring (13) are integrally punched, and the fixed sleeve (8) is fixedly sealed in the lubricating oil inner box (7) of the bearing seat (3).

3. A forced lubrication device for a crank drive according to claim 2, wherein: an oil outlet (10) arranged at the first chamber (12) is opposite to the communication position of the overflow valve (4) and the lubricating oil inner box (7).

4. A forced lubrication device for a crank drive according to claim 1, wherein: the inner ring hole of the baffle ring (13) is matched with the inner ring wall of the lubricating oil inner box (7), and the inner ring hole of the baffle ring (13) is sealed with the lubricating oil inner box (7) through a sealing ring.

5. A forced lubrication device for a crank drive according to any one of claims 1 to 4, characterized in that: the first filtering sponge (11) and the second filtering sponge (15) are in a circular ring design, and the first filtering sponge (11) and the second filtering sponge (15) are fixed by adopting V-shaped inserting pieces to penetrate through the oil outlet (10).