CN216951351U - Transmission system of shellfish catcher - Google Patents

Abstract

The utility model relates to a shellfish catcher transmission system, which comprises a driving shaft and an output shaft which are vertically and coaxially arranged, wherein the bottom end of the driving shaft is connected with the top end of the output shaft through a universal joint; this shellfish trap transmission system, have the characteristic of variable angle power transmission through the universal joint, thereby even there is certain incline in output shaft and the disalignment of casing flange, also can compensate through the universal joint, thereby guarantee that the output shaft is coaxial with the casing flange all the time, guarantee the normal installation of seal receptacle and casing flange, the manufacturing accuracy requirement has been reduced, the degree of difficulty of assembly and maintenance has been reduced, very big improvement transmission system design rationality, and, the piece that can also produce when the universal joint wearing and tearing, promote the lubricated effect of universal joint.

Description

Transmission system of shellfish catcher

Technical Field

The utility model relates to a shellfish catcher transmission system, and belongs to the technical field of water filtration.

Background

The shellfish catcher is used for filtering granular debris impurities in circulating water, condensed water and other systems of a power plant, and discharging various impurities attached to the inner wall of the net core out of the equipment through the automatic back-flushing sewage discharge device, so that online continuous filtration and automatic cleaning sewage discharge are realized. The transmission system is used as a core component for transmission in the shellfish catcher, and the transmission performance and reliability of the structure of the transmission system directly influence the overall performance of the shellfish catcher;

the power transmission system structure of the existing shellfish catcher is applied to a plurality of nuclear power plants and thermal power plants, welding deformation often occurs in the manufacturing stage and the overhauling process, so that normal assembly and installation cannot be realized, and the manufacturing difficulty is higher due to higher precision, therefore, a catcher transmission system is needed, the manufacturing precision requirement is reduced, and the difficulty in assembly and overhauling is reduced.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: in order to overcome the defects of the prior art, a shellfish catcher transmission system is provided.

The technical scheme adopted by the utility model for solving the problems is as follows: a shellfish catcher transmission system comprises a driving shaft and an output shaft which are vertically and coaxially arranged, wherein the bottom end of the driving shaft is connected with the top end of the output shaft through a universal joint;

the universal joint comprises a connecting shaft and two eccentric shafts, the connecting shaft and the two eccentric shafts are both arranged coaxially with the driving shaft, the two eccentric shafts are fixedly distributed at the bottom end of the driving shaft and the top end of the output shaft, the connecting shaft is positioned between the two eccentric shafts, and the connecting shaft is respectively hinged with the two eccentric shafts;

the universal joint is also provided with a lubricating assembly, the lubricating assembly comprises a corrugated pipe and two sealing rings, the sealing rings correspond to the eccentric shaft one by one, the sealing rings are fixedly sleeved on the eccentric shaft in a sealing manner, the corrugated pipe is positioned between the two sealing rings, two ends of the corrugated pipe are respectively connected with the two sealing rings in a sealing manner, the connecting shaft is positioned in the corrugated pipe, the eccentric shaft and the sealing rings are of an integrally formed structure, in the two sealing rings, an oil inlet hole is formed in the upper sealing ring, an oil outlet hole is formed in the lower sealing ring, the oil inlet hole and the oil outlet hole are both communicated with the corrugated pipe, sealing plugs are fixedly arranged on the oil inlet hole and the oil outlet hole, a plurality of lubricating units are uniformly arranged in the corrugated pipe by taking the axis of the driving shaft as the central circumferential direction, each lubricating unit comprises a guide pipe and two moving rods, the guide pipes are vertically arranged, the utility model discloses a seal ring, including the carriage release lever, the carriage release lever is connected with the pipe, the carriage release lever is coaxial with the pipe setting, and two carriage release levers insert the both ends of pipe respectively, carriage release lever and pipe slip and sealing connection are provided with the clearance between two carriage release levers, carriage release lever and sealing ring one-to-one, the carriage release lever passes through the connecting rod and is articulated with the sealing ring, the carriage release lever passes through spring and pipe connection, circumference evenly distributed has two through-holes on the pipe, the through-hole is located between two carriage release levers, installs first check valve in one of them through-hole, installs second check valve and filter screen in another through-hole, the both ends of carriage release lever all are provided with the chamfer.

Compared with the prior art, the utility model has the advantages that:

according to the shellfish catcher transmission system, the universal joint has the characteristic of variable-angle power transmission, so that even if the output shaft and the shell flange are not coaxial with each other and have a certain deviation, the output shaft can be compensated through the universal joint, the output shaft is always coaxial with the shell flange, the normal installation of the sealing seat and the shell flange is guaranteed, the requirement on manufacturing precision is lowered, the difficulty in assembly and maintenance is reduced, the design rationality of the transmission system is greatly improved, and the lubricating effect of the universal joint can be improved due to the fact that chips are generated when the universal joint is abraded.

Drawings

Fig. 1 is a schematic structural diagram of a shellfish catcher transmission system according to the present invention;

FIG. 2 is a schematic diagram of a prior art structure;

FIG. 3 is a schematic view of a gimbal structure;

fig. 4 is an enlarged view of a portion a of fig. 3.

Wherein: the device comprises a driving shaft 100, an output shaft 200, a universal joint 300, a connecting shaft 301, an eccentric shaft 302, a lubricating component 303, a corrugated pipe 303.1, a sealing ring 303.2, a lubricating unit 303.3, a guide pipe 303.31, a movable rod 303.32, a connecting rod 303.33, a spring 303.34, a through hole 303.35, a first check valve 303.36, a second check valve 303.37, a filter screen 303.38, an oil inlet 303.4, an oil outlet 303.5, a sealing plug 303.6, a shell 400 and a sealing seat 500.

Detailed Description

As shown in fig. 1 to 4, the transmission system of the shellfish catcher in this embodiment includes a driving shaft 100 and an output shaft 200, which are vertically and coaxially disposed, wherein the bottom end of the driving shaft 100 is connected with the top end of the output shaft 200 through a universal joint 300;

the universal joint 300 comprises a connecting shaft 301 and two eccentric shafts 302, the connecting shaft 301 and the two eccentric shafts 302 are both arranged coaxially with the driving shaft 100, the two eccentric shafts 302 are fixedly distributed at the bottom end of the driving shaft 100 and the top end of the output shaft 200, the connecting shaft 301 is positioned between the two eccentric shafts 302, and the connecting shaft 301 is respectively hinged with the two eccentric shafts 302;

the universal joint 300 is further provided with a lubricating assembly 303, the lubricating assembly 303 comprises a corrugated pipe 303.1 and two sealing rings 303.2, the sealing rings 303.2 correspond to the eccentric shaft 302 one by one, the sealing rings 303.2 are fixedly sleeved on the eccentric shaft 302 in a sealing manner, the corrugated pipe 303.1 is positioned between the two sealing rings 303.2, two ends of the corrugated pipe 303.1 are respectively connected with the two sealing rings 303.2 in a sealing manner, the connecting shaft 301 is positioned in the corrugated pipe 303.1, the eccentric shaft 302 and the sealing rings 303.2 are of an integrally formed structure, in the two sealing rings 303.2, an oil inlet 303.4 is arranged on the upper sealing ring 303.2, an oil outlet 303.5 is arranged on the lower sealing ring 303.2, the oil inlet 303.4 and the oil outlet 303.5 are both communicated with the corrugated pipe 303.1, sealing plugs 303.6 are fixedly arranged on the oil inlet 303.4 and the oil outlet 303.5, a plurality of lubricating units 303.3 are uniformly arranged in the corrugated pipe 303.1 in a circumferential direction with the axis of the driving shaft 100 as a center, lubrication unit 303.3 includes pipe 303.31 and two movable rod 303.32, pipe 303.31 is vertical to be set up, movable rod 303.32 and the coaxial setting of pipe 303.31, and two movable rod 303.32 insert the both ends of pipe 303.31 respectively, movable rod 303.32 slides and sealing connection with pipe 303.31, is provided with the clearance between two movable rod 303.32, movable rod 303.32 and sealing ring 303.2 one-to-one, movable rod 303.32 passes through connecting rod 303.33 and sealing ring 303.2 are articulated, movable rod 303.32 passes through spring 303.34 and is connected with pipe 303.31, circumference evenly distributed has two through-holes 303.35 on the pipe 303.31, through-hole 303.35 is located between two movable rod 303.32, installs first check valve 303.36 in one of them through-hole 303.35, installs second check valve 303.37 and filter screen 303.38 in another through-hole 303.35, the both ends of movable rod 303.32 all are provided with the chamfer.

During the operation of the system, a sealing plug 303.6 of an oil inlet 303.4 is opened, lubricating oil is poured into a corrugated pipe 303.1 and then a sealing plug 303.6 is reset, an output shaft 200 is installed on a flange of a shell 400 through a sealing seat 500, driving torque is transmitted to a driving shaft 100 and then transmitted to a connecting shaft 301 through an upper eccentric shaft 302, the connecting shaft 301 is transmitted to the output shaft 200 through a lower eccentric shaft 302, and the connecting shaft 301 is respectively hinged with two eccentric shafts 302, so that a universal joint 300 has the characteristic of variable-angle power transmission, even if the output shaft 200 and the flange of the shell 400 have certain deflection, the output shaft 200 and the flange of the shell 400 can be compensated through the universal joint 300, thereby ensuring that the output shaft 200 is always coaxial with the flange of the shell 400, ensuring the normal installation of the sealing seat 500 and the flange of the shell 400, reducing the requirement on manufacturing precision, reducing the difficulty of assembly and maintenance, and greatly improving the design rationality of a transmission system, during compensation of the universal joint 300, the two eccentric shafts 302 respectively drive the two sealing rings 303.2 to generate relative displacement, and the moving rod 303.32 is driven by the connecting rod 303.33 to move on the guide tube 303.31, wherein the spring 303.34 can play a role in supporting the guide tube 303.31, when the distance between the two moving rods 303.32 on the same guide tube 303.31 is increased, the air pressure in the guide tube 303.31 is reduced, through the one-way characteristic of the second one-way valve 303.37, the lubricating oil can only pass through the first one-way valve 303.36 to enter the guide tube 303.31, when the distance between the two moving rods 303.32 on the same guide tube 303.31 is reduced, the air pressure in the guide tube 303.31 is increased, through the one-way characteristic of the first one-way valve 303.36, the lubricating oil in the upper guide tube 303.31 can only pass through the second one-way valve 303.37 to be discharged, and through circulation, the function of stirring the lubricating oil can be realized, because the universal joint 300 is easy to generate heat during compensation, and through stirring of the lubricating oil, can make heat evenly distributed in lubricating oil, promote universal joint 300 radiating effect, moreover, through the directional flow of lubricating oil in the pipe 303.31, can make universal joint 300 hold back on filter screen 303.38 because of the piece that wearing and tearing produced in the compensation process, it blocks when leading to universal joint 300 compensation to prevent the piece, thereby can improve output shaft 200 pivoted smoothness nature, and with connecting axle 301 submergence all the time in lubricating oil, can promote the lubricated effect between connecting axle 301 and the eccentric shaft 302.

In addition to the above embodiments, the present invention also includes other embodiments, and any technical solutions formed by equivalent transformation or equivalent replacement should fall within the scope of the claims of the present invention.

Claims (6)

1. A shellfish catcher transmission system is characterized in that: the device comprises a driving shaft (100) and an output shaft (200) which are vertically and coaxially arranged, wherein the bottom end of the driving shaft (100) is connected with the top end of the output shaft (200) through a universal joint (300);

the universal joint (300) comprises a connecting shaft (301) and two eccentric shafts (302), the connecting shaft (301) and the two eccentric shafts (302) are coaxially arranged with the driving shaft (100), the two eccentric shafts (302) are fixedly arranged at the bottom end of the driving shaft (100) and the top end of the output shaft (200) in a distributed mode, the connecting shaft (301) is located between the two eccentric shafts (302), and the connecting shaft (301) is hinged to the two eccentric shafts (302) respectively.

2. The shellfish trap drive system of claim 1, wherein: the universal joint (300) is further provided with a lubricating assembly (303), the lubricating assembly (303) comprises a corrugated pipe (303.1) and two sealing rings (303.2), the sealing rings (303.2) are in one-to-one correspondence with the eccentric shaft (302), the sealing rings (303.2) are fixedly sleeved on the eccentric shaft (302) in a sealing mode, the corrugated pipe (303.1) is located between the two sealing rings (303.2), two ends of the corrugated pipe (303.1) are respectively in sealing connection with the two sealing rings (303.2), the connecting shaft (301) is located in the corrugated pipe (303.1), and a plurality of lubricating units (303.3) are uniformly arranged in the corrugated pipe (303.1) in the circumferential direction by taking the axis of the driving shaft (100) as the center.

3. The shellfish trap transmission system of claim 2, wherein: the eccentric shaft (302) and the sealing ring (303.2) are of an integrally formed structure.

4. The shellfish trap transmission system of claim 2, wherein: in two sealing rings (303.2), be provided with inlet port (303.4) on sealing ring (303.2) of top, be provided with oil outlet (303.5) on sealing ring (303.2) of below, inlet port (303.4) and oil outlet (303.5) all communicate with bellows (303.1), all fixed sealing plug (303.6) that is provided with on inlet port (303.4) and oil outlet (303.5).

5. The shellfish trap drive system of claim 2, wherein: the lubricating unit (303.3) comprises a guide tube (303.31) and two moving rods (303.32), the guide pipe (303.31) is vertically arranged, the moving rod (303.32) and the guide pipe (303.31) are coaxially arranged, the two moving rods (303.32) are respectively inserted into the two ends of the guide pipe (303.31), the moving rod (303.32) is connected with the guide tube (303.31) in a sliding and sealing way, a gap is arranged between the two moving rods (303.32), the moving rods (303.32) are in one-to-one correspondence with the sealing rings (303.2), the moving rod (303.32) is hinged with the sealing rings (303.2) through a connecting rod (303.33), the moving rod (303.32) is connected with the guide tube (303.31) through a spring (303.34), two through holes (303.35) are uniformly distributed on the guide pipe (303.31) in the circumferential direction, the through holes (303.35) are positioned between the two moving rods (303.32), a first check valve (303.36) is arranged in one through hole (303.35), and a second check valve (303.37) and a filter screen (303.38) are arranged in the other through hole (303.35).

6. The shellfish trap drive system of claim 5, wherein: both ends of the moving rod (303.32) are provided with chamfers.

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