CN113565963B - Sealing mechanism of wet clutch of press machine - Google Patents

Sealing mechanism of wet clutch of press machine Download PDF

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Publication number
CN113565963B
CN113565963B CN202111037725.4A CN202111037725A CN113565963B CN 113565963 B CN113565963 B CN 113565963B CN 202111037725 A CN202111037725 A CN 202111037725A CN 113565963 B CN113565963 B CN 113565963B
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CN
China
Prior art keywords
sealing
clutch piston
main shaft
sleeve
sealing ring
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Application number
CN202111037725.4A
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Chinese (zh)
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CN113565963A (en
Inventor
司大强
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Jiangsu Xingforging Intelligent Equipment Technology Co ltd
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Jiangsu Xingforging Intelligent Equipment Technology Co ltd
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Priority to CN202111037725.4A priority Critical patent/CN113565963B/en
Publication of CN113565963A publication Critical patent/CN113565963A/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3268—Mounting of sealing rings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D48/00—External control of clutches
    • F16D48/02—Control by fluid pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3284—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings characterised by their structure; Selection of materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D48/00—External control of clutches
    • F16D48/02—Control by fluid pressure
    • F16D2048/0212—Details of pistons for master or slave cylinders especially adapted for fluid control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2121/00—Type of actuator operation force
    • F16D2121/02—Fluid pressure
    • F16D2121/04—Fluid pressure acting on a piston-type actuator, e.g. for liquid pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2125/00—Components of actuators
    • F16D2125/02—Fluid-pressure mechanisms
    • F16D2125/08—Seals, e.g. piston seals

Abstract

The invention relates to the technical field of forging machinery, in particular to a sealing mechanism of a wet clutch of a press machine, which comprises a sealed shaft seat, wherein the sealed shaft seat is arranged at the connection part of a clutch piston cylinder and a main shaft, the sealed shaft seat is used for preventing the connection part of the clutch piston cylinder and the main shaft from air intake, a first sealed component is arranged at the connection part of the main shaft and the clutch piston, the first sealed component is used for preventing hydraulic oil from leaking, a second sealed component is arranged at the connection part of the clutch piston cylinder and the clutch piston, the second sealed component is used for placing hydraulic oil to leak, a third sealed component is arranged at an oil inlet, a fourth sealed component is arranged at an oil inlet nozzle, and the third sealed component and the fourth sealed component are used for ensuring the sealing of an oil duct.

Description

Sealing mechanism of wet clutch of press machine
Technical Field
The invention relates to the technical field of forging machinery, in particular to a sealing mechanism of a wet clutch of a press machine.
Background
At present, in the forging and pressing machinery industry, the sealing of a wet clutch in a general medium-small forging press machine transmission system mostly adopts a traditional sealing method, namely, the sealing is adopted between a flywheel bearing and the clutch, the flywheel bearing is lubricated by oil thrown out of the wet clutch during working, and through actual use, the wet clutch with the structure is easy to generate oil leakage phenomenon, the bearing sealing needs to be replaced, and the production cost is increased.
Chinese patent application No. CN201120219125.5 discloses a wet clutch of a press, which adopts a structure that front and rear ends of the wet clutch are respectively provided with a front seal and a rear seal, and is used for sealing thin oil in the wet clutch in a working cavity, so as to ensure that the wet clutch does not leak oil and works normally; meanwhile, the wet clutch is arranged in the flywheel, and the flywheel bearing is arranged side by side with the flywheel bearing, so that the front bearing seal and the rear bearing seal are respectively arranged in front of and behind the bearing, and the flywheel bearing and the wet clutch are respectively sealed, but the integral sealing mode can not effectively seal the oil seepage part of the clutch, the leakage condition still occurs in the clutch, and the integral sealing structure occupies a larger space and is unfavorable for the comprehensive utilization of the space.
Disclosure of Invention
In order to solve the technical problems, a sealing mechanism of a wet clutch of a press machine is provided. The technical scheme solves the technical problems that the integral type airtight structure occupies larger space and is not beneficial to the assembly of equipment.
In order to achieve the above purpose, the invention adopts the following technical scheme:
The utility model provides a sealing mechanism of press wet clutch, includes press wet clutch, installs clutch piston cylinder and clutch piston on the main shaft of press wet clutch coaxially, and clutch piston cylinder and clutch piston pass through the oil duct that sets up in the main shaft and carry hydraulic oil, and the oil duct is coaxial with the main shaft setting, and the oil duct is provided with the oil inlet in one end of main shaft, and the oil duct radially installs the glib talker, and press wet clutch seals through the sealing mechanism that sets up to each spare part;
The sealing mechanism comprises a sealing shaft seat, the sealing shaft seat is arranged at the connection part of the clutch piston cylinder and the main shaft, the sealing shaft seat is used for preventing air from entering the connection part of the clutch piston cylinder and the main shaft, a first sealing component is arranged at the connection part of the main shaft and the clutch piston, the first sealing component is used for preventing hydraulic oil from leaking, a second sealing component is arranged at the connection part of the clutch piston cylinder and the clutch piston, the second sealing component is used for placing hydraulic oil to leak, a third sealing component is arranged at the oil inlet, a fourth sealing component is arranged at the oil inlet, and the third sealing component and the fourth sealing component are used for guaranteeing sealing of an oil duct.
Preferably, the airtight axle bed is including mounting panel, mounting panel and the coaxial setting of main shaft, one side of mounting panel fixed mounting clutch piston jar is provided with first sleeve on the mounting panel, first sleeve and the coaxial setting of mounting panel, first sleeve suit is in the main shaft outside, the one end of clutch piston jar is pressed close to first sleeve inboard, the main shaft is provided with the thread bush with first telescopic junction, the thread bush is connected with main shaft spiral installation, the front end of thread bush is provided with the stopper, stopper and thread bush have certain space, the surface of the laminating main shaft of the inner wall laminating of stopper.
Preferably, the mounting plate is fixedly mounted with the clutch piston cylinder of the wet clutch of the press through a first fixing bolt, the first fixing bolt passes through the mounting plate and is spirally inserted on one side of the clutch piston cylinder, and the first fixing bolt is multiple.
Preferably, a first sealing ring is sleeved in the first sleeve, the first sealing ring is sleeved between the limiting block and the thread groove, the first sealing ring is tightly attached to the thread groove and the thread sleeve, the first sealing ring is coaxially arranged on the main shaft, and the first sealing ring is tightly attached to the connecting part of the main shaft and the limiting block.
Preferably, a second sealing ring is sleeved in the first sleeve, the second sealing ring is sleeved on one side of the limiting block, which faces the opening of the first sleeve, and the second sealing ring is tightly attached to one side of the limiting block and the outer wall of the main shaft.
Preferably, the first airtight assembly comprises a third sealing ring, the third sealing ring is fixedly arranged in a groove formed in one side, facing the clutch piston cylinder, of the clutch piston, the third sealing ring is coaxially arranged with the main shaft, the size of the third sealing ring is identical with that of the groove, and the surface of the third sealing ring and the surface of the clutch piston are in the same horizontal plane.
Preferably, the outside of the groove of the clutch piston is provided with at least one group of limiting grooves, the third sealing ring of the first sealing assembly is provided with limiting convex blocks which are matched with the limiting grooves in shape and size, the third sealing ring penetrates through the limiting convex blocks through fixing screws to be fixedly connected with the clutch piston, and the fixing screws are installed in an embedded mode.
Preferably, the circumference side of the clutch piston is provided with a ring groove, the second airtight assembly is arranged in the ring groove in a limiting mode, the second airtight assembly comprises a fourth sealing ring which is sleeved on the ring groove in a sleeved mode, the size of the fourth sealing ring is matched with that of the ring groove, the circumference side of the fourth sealing ring is provided with a plurality of tooth grooves, and the tooth grooves divide the surface of the fourth sealing ring into a plurality of D-shaped sealing rings.
Preferably, the third airtight assembly comprises a second sleeve, the second sleeve is inserted into an oil inlet of the main shaft, a plurality of annular teeth are arranged on the periphery of the second sleeve, annular tooth grooves matched with the annular teeth on the second sleeve in number, shape and size are arranged on the inner wall of the oil inlet, the annular teeth are arranged in the annular tooth grooves in a limiting mode, a sealing cover is arranged at one outward end of the second sleeve, the sealing cover seals the connecting position of the second sleeve and the oil inlet, and the sealing cover is fixedly arranged on the main shaft through a second fixing bolt.
Preferably, the fourth airtight assembly comprises at least one fifth sealing ring, the fifth sealing ring is sleeved at the connection part of the output end of the oil inlet nozzle and the oil duct, the fifth sealing ring is tightly attached between the oil inlet nozzle and the oil duct, the fourth airtight assembly further comprises a sealing sleeve, the sealing sleeve is sleeved on the outer surface of the oil inlet nozzle, and the sealing sleeve can be attached to the shape of the installation part of the oil inlet nozzle and the main shaft.
Compared with the prior art, the application has the following beneficial effects:
1. According to the application, the sealing of the wet clutch of the press is realized by arranging different sealing mechanisms aiming at the contact positions of the oil duct of the wet clutch of the press and each part, so that the effective sealing of the wet clutch of the press in the minimum space is ensured, the connection of flywheel components is not influenced, and the occupied space volume of equipment is reduced.
2. According to the application, the mounting position of the closed shaft seat is spirally mounted and fixed through the thread groove of the closed shaft seat and the thread sleeve, and hydraulic oil entering a gap between the main shaft and the clutch piston cylinder is blocked in a plurality of ways through the protruding threads on the thread sleeve, so that the problem that the surface of the hydraulic oil attached to the main shaft leaks from the joint of the main shaft and the clutch piston cylinder is solved.
3. According to the clutch piston cylinder, the first fixing bolt passes through the mounting plate and is spirally inserted on one side of the clutch piston cylinder to fix the position of the mounting plate, so that the position of the mounting plate is stable and movement is avoided.
4. According to the application, the tightness of the connection part of the thread sleeve and the thread groove is improved through the first sealing ring, so that leakage of hydraulic oil through the thread groove can be blocked by the first sealing ring, and abrasion deformation caused by direct contact of the thread sleeve and the limiting block can be avoided.
5. According to the application, the second sealing ring can prevent the hydraulic oil from leaking outwards from the inner part through the thread groove and the first sealing ring, and also can prevent the invasion of external air or dust, so that the sealing of the sealed shaft seat is ensured, and the leakage path of the hydraulic oil is sealed in a reinforced way.
6. According to the application, the connecting part of the main shaft and the clutch piston is sealed through the third sealing ring embedded in the groove, so that the first sealing component is prevented from affecting the joint of the clutch piston and the clutch piston cylinder, the installation of parts outside the clutch piston is not affected, and the external space is saved.
7. According to the application, the limit protruding blocks with the number and the shape corresponding to those of the limit grooves are arranged on the third sealing ring, so that the problem of reduced sealing performance caused by rotation of the third sealing ring in the groove can be avoided.
8. According to the application, through the tooth grooves arranged on the peripheral side of the fourth sealing ring, the movement of the clutch piston is not influenced when the fourth sealing ring is contacted with the side wall of the clutch piston cylinder, and a plurality of sealing rings can be formed on the fourth sealing ring to perform multiple blocking on hydraulic oil.
9. According to the application, the sealing effect of the third airtight assembly on hydraulic oil leakage is enhanced by increasing the leakage path of the hydraulic oil through limiting and mounting the third airtight assembly on the annular tooth slot.
10. According to the application, through the fifth sealing ring arranged on the oil inlet nozzle and the sealing sleeve sleeved outside the oil inlet nozzle, leakage of hydraulic oil can not be generated inside the oil inlet nozzle, and external air and dust are prevented from entering the connecting part of the oil inlet nozzle and the oil duct.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a side view of the present invention;
FIG. 3 is a cross-sectional view taken at A-A of FIG. 2;
FIG. 4 is an enlarged view of a portion of FIG. 3 at B;
FIG. 5 is an enlarged view of a portion of FIG. 3 at C;
FIG. 6 is a partial enlarged view at D of FIG. 3;
FIG. 7 is an enlarged view of a portion of FIG. 3 at E;
FIG. 8 is a perspective view of the spindle of the present invention;
FIG. 9 is an enlarged view of a portion of FIG. 8 at F;
FIG. 10 is a perspective view of a clutch piston of the present invention;
FIG. 11 is an enlarged view of a portion of FIG. 10 at G;
FIG. 12 is a perspective view of a containment well seat of the present invention;
FIG. 13 is a second perspective view of the containment well seat of the present invention;
FIG. 14 is a perspective view of a third closure assembly of the present invention;
FIG. 15 is a second perspective view of a third closure assembly of the present invention;
the reference numerals in the figures are:
1-a press wet clutch; 1 a-a main shaft; 1a 1-oil duct; 1a 2-oil inlet; 1a 3-a nozzle tip; 1a 4-thread sleeve; 1a 5-annular tooth slot; 1 b-clutch piston cylinder; 1 c-clutch piston; 1c 1-grooves; 1c 2-a limit groove; 1c 3-ring groove;
2, a closed shaft seat; 2 a-a mounting plate; 2a 1-a first fixing bolt; 2 b-a first sleeve; 2b 1-a first sealing ring; 2b 2-a second sealing ring; 2 c-thread grooves; 2 d-limiting blocks;
3-a first containment assembly; 3 a-a third seal ring; 3 b-limit bump; 3 c-a set screw;
4-a second containment assembly; 4 a-fourth sealing ring; 4a 1-tooth slot;
5-a third containment assembly; 5 a-a second sleeve; 5a 1-ring teeth; 5 b-capping; 5 c-a second fixing bolt; 6-a fourth closed assembly; 6 a-a fifth seal ring; 6 b-sealing sleeve.
Detailed Description
The following description is presented to enable one of ordinary skill in the art to make and use the invention. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art.
In order to solve the technical problems that the integral type airtight structure occupies a larger space and is not beneficial to the assembly of equipment, as shown in fig. 1 to 3, the following preferred technical scheme is provided:
The utility model provides a sealing mechanism of press wet clutch, include, press wet clutch 1, install clutch piston cylinder 1b and clutch piston 1c on the main shaft 1a of press wet clutch 1 coaxially, clutch piston cylinder 1b and clutch piston 1c carry hydraulic oil through the oil duct 1a1 that sets up in main shaft 1a, oil duct 1a1 is coaxial with main shaft 1a, oil duct 1a1 is provided with oil inlet 1a2 in one end of main shaft 1a, oil duct 1a1 radially installs glib 1a3, press wet clutch 1 seals through the sealing mechanism that sets up to each spare part;
The sealing mechanism comprises a sealing shaft seat 2, the sealing shaft seat 2 is arranged at the connection position of a clutch piston cylinder 1b and a main shaft 1a, the sealing shaft seat 2 is used for preventing air from entering the connection position of the clutch piston cylinder 1b and the main shaft 1a, a first sealing component 3 is arranged at the connection position of the main shaft 1a and a clutch piston 1c, the first sealing component 3 is used for preventing hydraulic oil from leaking, a second sealing component 4 is arranged at the connection position of the clutch piston cylinder 1b and the clutch piston 1c, the second sealing component 4 is used for placing hydraulic oil for leaking, a third sealing component 5 is arranged at the oil inlet 1a2, a fourth sealing component 6 is arranged at the oil inlet 1a3, and the third sealing component 5 and the fourth sealing component 6 are used for guaranteeing sealing of an oil duct 1a 1.
Specifically, in this embodiment, different sealing mechanisms are set for contact positions between the oil duct 1a1 of the wet clutch 1 of the press machine and each part to seal the wet clutch 1 of the press machine, so that effective sealing is implemented on the wet clutch 1 of the press machine in a minimum space, connection of flywheel components is not affected, occupied space volume of equipment is reduced, the connection part of the main shaft 1a and the clutch piston cylinder 1b of the wet clutch 1 of the press machine is sealed through the sealed shaft seat 2, the clutch piston cylinder 1b of the wet clutch 1 of the press machine is fixedly installed on the main shaft 1a, the clutch piston cylinder 1b needs to ensure sealing with an inner space of the clutch piston 1c to avoid leakage of hydraulic oil, stability of the clutch piston cylinder 1b installed on the main shaft 1a is also required to be ensured, and vibration of the clutch piston 1b is prevented from affecting working quality of the wet clutch 1 of the press machine when the clutch piston 1c rotates, the connection part of the main shaft 1a of the clutch piston 1b is installed on the sealed shaft seat 2, and the connection part of the clutch piston 1b and the main shaft 1a is connected with the main shaft 1a is reinforced, and the connection part of the clutch piston 1b and the clutch piston 1a is connected with the sealed part is guaranteed; according to the embodiment, the first sealing component 3 seals the connection part of the main shaft 1a and the clutch piston 1c, the clutch piston 1c needs to move on the main shaft 1a, the connection part of the main shaft 1a and the clutch piston 1c is very easy to leak hydraulic oil, the first sealing component 3 can seal the connection part of the main shaft 1a and the clutch piston 1c on the premise that the clutch piston 1c moves smoothly, the sealing part is arranged on the inner side of the clutch piston 1c, the installation of parts outside the clutch piston 1c is not influenced, and the space is saved; according to the embodiment, the connecting part of the clutch piston 1c and the clutch piston cylinder 1b is sealed through the second sealing component 4, when the clutch piston 1c moves in the clutch piston cylinder 1b, the joint part of the clutch piston 1c and the clutch piston cylinder 1b moves relatively, leakage of hydraulic oil is easy to occur, the second sealing component 4 seals the connecting part of the clutch piston cylinder 1b and the clutch piston 1c, meanwhile, the relative movement of the clutch piston cylinder 1b and the clutch piston 1c is not influenced, and therefore normal operation of the clutch piston 1c is guaranteed, and the oil inlet 1a2 and the oil inlet nozzle 1a3 on the oil duct 1a1 are sealed through the third sealing component 5 and the fourth sealing component 6, so that the tightness of the oil duct 1a1 is guaranteed, and the phenomenon of oil leakage cannot occur when the hydraulic oil is conveyed into the wet clutch 1 of a press in the oil duct 1a1, and normal operation of equipment is guaranteed.
Further, in order to solve the technical problem of how to fix and seal the connection part of the clutch piston cylinder 1b and the main shaft 1a by the sealed shaft seat 2, as shown in fig. 4, 12 and 13, the following preferred technical scheme is provided: the airtight shaft seat 2 comprises a mounting plate 2a, wherein the mounting plate 2a and the main shaft 1a are coaxially arranged, the mounting plate 2a is fixedly arranged on one side of the clutch piston cylinder 1b, a first sleeve 2b is arranged on the mounting plate 2a and is coaxially arranged with the mounting plate 2a, the first sleeve 2b is sleeved on the outer side of the main shaft 1a, one end, close to the clutch piston cylinder 1b, of the inner side of the first sleeve 2b is provided with a thread groove 2c, the connecting part of the main shaft 1a and the first sleeve 2b is provided with a thread sleeve 1a4, the thread groove 2c is in spiral mounting connection with the main shaft 1a, the front end of the thread groove 2c is provided with a limiting block 2d, the limiting block 2d and the thread groove 2c are provided with a certain space, and the inner wall of the limiting block 2d is attached to the surface of the main shaft 1 a.
Specifically, the sealed shaft seat 2 in this embodiment is formed integrally with the first sleeve 2b through the mounting plate 2a, the mounting plate 2a is used for fixedly connecting one side of the clutch piston cylinder 1b so as to ensure the fixed connection between the sealed shaft seat 2 and the clutch piston cylinder 1b, the first sleeve 2b is sleeved on the spindle 1a so as to ensure the axial position of the sealed shaft seat 2, the threaded groove 2c of the sealed shaft seat 2 is conveniently and spirally mounted with the threaded sleeve 1a4 of the wet clutch 1 of the press, the mounting position of the sealed shaft seat 2 can be fixed by spirally mounting the threaded groove 2c with the threaded sleeve 1a4, and a plurality of blocking can be performed on hydraulic oil entering a gap between the spindle 1a and the clutch piston cylinder 1b through protruding threads on the threaded sleeve 1a4 so as to prevent the hydraulic oil from flowing out from the joint of the surface of the hydraulic oil attaching spindle 1a from the spindle 1a and the clutch piston cylinder 1 b.
Further, in order to solve the technical problem of how to fix the mounting plate 2a on the surface of the clutch piston cylinder 1b, as shown in fig. 4, the following preferred technical scheme is provided: the mounting plate 2a is fixedly mounted to the clutch piston cylinder 1b of the wet clutch 1 of the press machine by a first fixing bolt 2a1, the first fixing bolt 2a1 is screw-inserted through the mounting plate 2a on one side of the clutch piston cylinder 1b, and the first fixing bolt 2a1 has a plurality.
Specifically, in the sealed shaft seat 2 in this embodiment, after the thread groove 2c is spirally mounted with the thread sleeve 1a4 on the spindle 1a, the mounting plate 2a is attached to one side of the clutch piston cylinder 1b, so as to prevent the connection position between the thread groove 2c and the thread sleeve 1a4 from loosening during the working of the wet clutch 1 of the press machine, thereby reducing the sealing effect of the sealed shaft seat 2, fixing the position of the mounting plate 2a by penetrating the first fixing bolt 2a1 through one side of the mounting plate 2a and spirally inserting the mounting plate 2a into the clutch piston cylinder 1b, and ensuring that the position of the mounting plate 2a is stable and no movement occurs.
Further, in order to solve the technical problem of how to ensure the tightness at the thread groove 2c, as shown in fig. 4, 12 and 13, the following preferred technical scheme is provided: the first sleeve 2b is internally sleeved with a first sealing ring 2b1, the first sealing ring 2b1 is sleeved between the limiting block 2d and the thread groove 2c, the first sealing ring 2b1 is tightly attached to the thread groove 2c and the thread sleeve 1a4, the first sealing ring 2b1 is coaxially arranged on the main shaft 1a, and the first sealing ring 2b1 is tightly attached to the connecting part of the main shaft 1a and the limiting block 2 d.
Specifically, the limiting block 2d in this embodiment is disposed in a certain space between the limiting block 2d and the thread groove 2c for installing the first sealing ring 2b1, the first sealing ring 2b1 may be a "U" sealing ring, the first sealing ring 2b1 extrudes the first sealing ring 2b1 along with the spiral installation of the thread groove 2c and the thread sleeve 1a4, and the sealing performance of the extruded first sealing ring 2b1 is improved accordingly, so that the abrasion deformation caused by the direct contact between the thread sleeve 1a4 and the limiting block 2d can be avoided, the sealing performance of the connection part between the thread sleeve 1a4 and the thread groove 2c can be improved, and even if hydraulic oil leaks through the thread groove 2c, the hydraulic oil can be blocked inside by the first sealing ring 2b 1.
Further, in order to solve the technical problem of how to prevent the impurities such as air dust from entering the sealed shaft seat 2, as shown in fig. 4, 12 and 13, the following preferred technical scheme is provided: the first sleeve 2b is sleeved with a second sealing ring 2b2, the second sealing ring 2b2 is sleeved on one side of the limiting block 2d, which faces the opening of the first sleeve 2b, and one side of the second sealing ring 2b2 is tightly attached to the outer wall of the main shaft 1 a.
Specifically, the stopper 2d in this embodiment is attached to the surface of the main shaft 1a, the gap between the first sleeve 2b and the main shaft 1a is filled with a second sealing ring 2b2, the second sealing ring 2b2 may be a V-shaped sealing ring, the sealing lip of the second sealing ring 2b2 has good mobility and adaptability, the inner surface of the first sleeve 2b may be attached to the outer surface of the main shaft 1a, the hydraulic oil inside the first sleeve 2b and the first sealing ring 2b1 may be prevented from leaking outwards, the invasion of external air or dust may be prevented, and the sealing of the airtight shaft seat 2 may be ensured while the leakage path of the hydraulic oil is reinforced.
Further, in order to solve the technical problem of how to seal the connection portion between the clutch piston 1c and the main shaft 1a, as shown in fig. 3, 10 and 11, the following preferable technical solutions are provided: the first airtight assembly 3 comprises a third sealing ring 3a, the third sealing ring 3a is fixedly arranged in a groove 1c1 arranged on one side of the clutch piston 1c, which faces the clutch piston cylinder 1b, the third sealing ring 3a is coaxially arranged with the main shaft 1a, the size of the third sealing ring 3a is identical with that of the groove 1c1, and the surface of the third sealing ring 3a and the surface of the clutch piston 1c are in the same horizontal plane.
Specifically, the first sealing assembly 3 in this embodiment seals the connection part between the main shaft 1a and the clutch piston 1c on the premise of ensuring smooth movement of the clutch piston 1c, the groove 1c1 disposed on the inner side of the main shaft 1a is identical to the third sealing ring 3a in size, the third sealing ring 3a is tightly attached to the groove 1c1 when installed in the groove 1c1, the third sealing ring 3a can be tightly attached to the outer surface of the main shaft 1a, the third sealing ring 3a can be a "U" sealing ring, the "U" sealing ring is commonly used for manufacturing a reciprocating seal in a hydraulic system, and is widely used for sealing a hydraulic cylinder in engineering machinery, so that smooth movement of the clutch piston 1c on the main shaft 1a can be effectively ensured, the inner side of the clutch piston 1c and the surface of the clutch piston 1c can be ensured to be in the same horizontal plane after the installation of the third sealing ring 3a is completed, the attachment of the first sealing assembly 3a and the clutch piston 1b can be prevented from being affected, the attachment of the first sealing assembly 3c and the clutch piston 1b can be prevented, the first sealing assembly 3 is commonly used for manufacturing a reciprocating seal in the hydraulic cylinder, and the sealing assembly is widely used for sealing a hydraulic cylinder in the engineering machinery, and the clutch piston 1c is not affected by the outer part of the clutch piston 1 c.
Further, in order to solve the technical problem of how to fix the fixing screw 3c to avoid its rotation in the groove 1c1, as shown in fig. 11, the following preferred technical scheme is provided: at least one group of limiting grooves 1c2 are formed in the outer side of a groove 1c1 of the clutch piston 1c, limiting protruding blocks 3b matched with the limiting grooves 1c2 in shape and size are arranged on a third sealing ring 3a of the first sealing assembly 3, the third sealing ring 3a penetrates through the limiting protruding blocks 3b through fixing screws 3c to be fixedly connected with the clutch piston 1c, and the fixing screws 3c are installed in an embedded mode.
Specifically, the shape of the third sealing ring 3a in this embodiment is circular, in order to avoid the problem that the sealing performance is reduced due to the rotation of the third sealing ring 3a in the groove 1c1, a limiting groove 1c2 is provided at the outer side of the groove 1c1, limiting protrusions 3b corresponding to the number and shape of the limiting grooves 1c2 are provided on the third sealing ring 3a, the limiting protrusions 3b are limitedly installed in the limiting groove 1c2 to ensure that the third sealing ring 3a cannot rotate, a fixing screw 3c passes through the limiting protrusions 3b and is fixedly installed on the clutch piston 1c to fix the installation position of the third sealing ring 3a, the third sealing ring 3a is prevented from falling off, and the first sealing assembly 3 can also be ensured not to influence the operation of the clutch piston cylinder 1b and the clutch piston 1c by adopting embedded installation of the fixing screw 3 c.
Further, in order to solve the technical problem of how to seal the connection portion between the clutch piston 1c and the clutch piston cylinder 1b by the second sealing assembly 4, as shown in fig. 5, the following preferred technical scheme is provided: the circumference side of clutch piston 1c is provided with annular groove 1c3, and the spacing installation of second airtight subassembly 4 is in annular groove 1c3, and second airtight subassembly 4 is including fourth sealing washer 4a, and fourth sealing washer 4a suit is on annular groove 1c3, and the size of fourth sealing washer 4a coincides with annular groove 1c3, and the circumference side of fourth sealing washer 4a is provided with tooth's socket 4a1, and tooth's socket 4a1 has a plurality ofly, and tooth's socket 4a1 divides the surface of fourth sealing washer 4a into a plurality of "D" sealing washer.
Specifically, the second sealing assembly 4 in this embodiment is installed in the annular groove 1c3 formed on the circumferential side of the clutch piston 1c, the tooth groove 4a1 formed on the circumferential side of the fourth sealing ring 4a divides the surface of the fourth sealing ring 4a into a plurality of "D" sealing rings, which can ensure that the movement of the clutch piston 1c is not affected when the fourth sealing ring 4a contacts with the side wall of the clutch piston cylinder 1b, and a plurality of sealing rings can be formed on the fourth sealing ring 4a, and when hydraulic oil leaks from the connection position of the clutch piston cylinder 1b and the clutch piston 1c to contact with the fourth sealing ring 4a, the fourth sealing ring 4a can perform multiple blocking on the hydraulic oil, so that the hydraulic oil cannot leak to the outside of the fourth sealing ring 4 a.
Further, in order to solve the technical problem of how to seal the oil inlet 1a2 by the third sealing assembly 5, as shown in fig. 6, 9, 14 and 15, the following preferred technical scheme is provided: the third airtight assembly 5 comprises a second sleeve 5a, the second sleeve 5a is inserted into an oil inlet 1a2 of the main shaft 1a, a plurality of annular teeth 5a1 are arranged on the periphery of the second sleeve 5a, annular tooth grooves 1a5 which are matched with the annular teeth 5a1 on the second sleeve 5a in number, shape and size are arranged on the inner wall of the oil inlet 1a2, the annular teeth 5a1 are installed in the annular tooth grooves 1a5 in a limiting mode, a sealing cover 5b is arranged at one end, facing outwards, of the second sleeve 5a, the sealing cover 5b seals the connecting position of the second sleeve 5a and the oil inlet 1a2, and the sealing cover 5b is fixedly installed on the main shaft 1a through a second fixing bolt 5 c.
Specifically, the third airtight assembly 5 in this embodiment is inserted into the oil inlet 1a2 through the second sleeve 5a and is connected with the main shaft 1a, the second sleeve 5a can be made of rubber materials, the inner fit of the second sleeve and the oil inlet 1a2 is tightly guaranteed, the annular tooth socket 1a5 arranged in the oil inlet 1a2 is in spacing installation with the annular tooth 5a1 on the second sleeve 5a, the hydraulic oil entering the oil duct 1a1 is blocked in multiple ways, the blocking effect of the third airtight assembly 5 on the hydraulic oil leakage is enhanced by increasing the leakage path of the hydraulic oil, the sealing cover 5b seals one end of the second sleeve 5a outwards, the sealing cover 5b is fixedly installed on the main shaft 1a through the second fixing bolt 5c to seal the oil inlet 1a2, and meanwhile, the position of the third airtight assembly 5 is fixed, and the sealing effect of the third airtight assembly 5 is guaranteed.
Further, in order to solve the technical problem of how to ensure the tightness of the installation portion of the oil inlet nozzle 1a3 by the fourth sealing assembly 6, as shown in fig. 7, the following preferred technical scheme is provided: the fourth airtight assembly 6 comprises at least one fifth sealing ring 6a, the fifth sealing ring 6a is sleeved at the connection part between the output end of the oil inlet nozzle 1a3 and the oil duct 1a1, the fifth sealing ring 6a is tightly attached between the oil inlet nozzle 1a3 and the oil duct 1a1, the fourth airtight assembly 6 also comprises a sealing sleeve 6b, the sealing sleeve 6b is sleeved on the outer surface of the oil inlet nozzle 1a3, and the sealing sleeve 6b can be attached to the shape of the installation part of the oil inlet nozzle 1a3 and the main shaft 1 a.
Specifically, the fourth sealing component 6 in this embodiment includes a fifth sealing ring 6a disposed at the output end of the oil inlet nozzle 1a3, where the fifth sealing ring 6a is disposed at a gap between the contact portion of the oil inlet nozzle 1a3 and the oil duct 1a1 and facing the contact position of the oil inlet nozzle 1a3 and the oil duct 1a1, so as to ensure that hydraulic oil cannot flow reversely to form leakage, the fourth sealing component 6 seals the outside of the installation portion of the oil inlet nozzle 1a3 and the oil duct 1a1 through a sealing sleeve 6b, and the sealing sleeve 6b adopts a rubber material to be capable of being attached to the shape of the installation portion of the oil inlet nozzle 1a3 and the main shaft 1a, so as to ensure that leakage of hydraulic oil cannot occur inside, and also avoid external air and dust from entering the connection portion of the oil inlet nozzle 1a3 and the oil duct 1a 1.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention, which is defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. The utility model provides a sealing mechanism of press wet clutch, including, press wet clutch (1), install clutch piston cylinder (1 b) and clutch piston (1 c) on main shaft (1 a) of press wet clutch (1) coaxial, clutch piston cylinder (1 b) and clutch piston (1 c) carry hydraulic oil through oil duct (1 a 1) that sets up in main shaft (1 a), oil duct (1 a 1) and main shaft (1 a) coaxial arrangement, oil duct (1 a 1) is provided with oil inlet (1 a 2) in one end of main shaft (1 a), oil duct (1 a 1) radially installs glib talker (1 a 3), press wet clutch (1) are sealed through the following sealing mechanism that sets up to each spare part;
The clutch piston cylinder (1 b) is characterized in that the following sealing mechanism comprises a sealing shaft seat (2), the sealing shaft seat (2) is arranged at the connection position of the clutch piston cylinder (1 b) and the main shaft (1 a), the sealing shaft seat (2) is used for preventing air from entering the connection position of the clutch piston cylinder (1 b) and the main shaft (1 a), a first sealing component (3) is arranged at the connection position of the main shaft (1 a) and the clutch piston (1 c), the first sealing component (3) is used for preventing hydraulic oil from leaking, a second sealing component (4) is arranged at the connection position of the clutch piston cylinder (1 b) and the clutch piston (1 c), the second sealing component (4) is used for preventing hydraulic oil from leaking, a third sealing component (5) is arranged at the oil inlet (1 a 2), a fourth sealing component (6) is arranged at the oil inlet nozzle (1 a 3), and the third sealing component (5) and the fourth sealing component (6) are used for guaranteeing sealing of an oil duct (1 a 1).
2. The sealing mechanism of a wet clutch of a press machine according to claim 1, wherein the sealing shaft seat (2) comprises a mounting plate (2 a), the mounting plate (2 a) and the main shaft (1 a) are coaxially arranged, the mounting plate (2 a) is fixedly arranged on one side of the clutch piston cylinder (1 b), a first sleeve (2 b) is arranged on the mounting plate (2 a), the first sleeve (2 b) and the mounting plate (2 a) are coaxially arranged, the first sleeve (2 b) is sleeved on the outer side of the main shaft (1 a), a thread groove (2 c) is formed in the inner side of the first sleeve (2 b) and close to one end of the clutch piston cylinder (1 b), a thread sleeve (1 a 4) is arranged at the connecting part of the main shaft (1 a) and the first sleeve (2 b), the thread groove (2 c) is in spiral mounting connection with the main shaft (1 a), a limit block (2 d) is arranged at the front end of the thread groove (2 c), the limit block (2 d) and the thread groove (2 c) have a certain space, and the inner wall of the limit block (2 d) is attached to the surface of the main shaft (1 a).
3. A sealing mechanism for a wet clutch of a press machine according to claim 2, characterized in that the mounting plate (2 a) is fixedly mounted with the clutch piston cylinder (1 b) of the wet clutch (1) of the press machine by means of a first fixing bolt (2 a 1), the first fixing bolt (2 a 1) is screw-inserted through the mounting plate (2 a) at one side of the clutch piston cylinder (1 b), and the first fixing bolt (2 a 1) has a plurality.
4. The sealing mechanism of a wet clutch of a press machine according to claim 2, wherein a first sealing ring (2 b 1) is sleeved in the first sleeve (2 b), the first sealing ring (2 b 1) is sleeved between the limiting block (2 d) and the thread groove (2 c), the first sealing ring (2 b 1) is tightly attached to the thread groove (2 c) and the thread sleeve (1 a 4), the first sealing ring (2 b 1) is coaxially arranged on the main shaft (1 a), and the first sealing ring (2 b 1) is tightly attached to the connecting part of the main shaft (1 a) and the limiting block (2 d).
5. The sealing mechanism of the wet clutch of the press machine according to claim 2, wherein a second sealing ring (2 b 2) is sleeved in the first sleeve (2 b), the second sealing ring (2 b 2) is sleeved on one side of the limiting block (2 d) facing the opening of the first sleeve (2 b), and one side of the limiting block (2 d) is tightly attached to the outer wall of the main shaft (1 a) by the second sealing ring (2 b 2).
6. A sealing mechanism for a wet clutch of a press machine according to claim 1, characterized in that the first sealing assembly (3) comprises a third sealing ring (3 a), the third sealing ring (3 a) is fixedly arranged in a groove (1 c 1) arranged on one side of the clutch piston (1 c) facing the clutch piston cylinder (1 b), the third sealing ring (3 a) is coaxially arranged with the main shaft (1 a), the size of the third sealing ring (3 a) is identical with the size of the groove (1 c 1), and the surface of the third sealing ring (3 a) is in the same horizontal plane with the surface of the clutch piston (1 c).
7. The sealing mechanism of a wet clutch of a press machine according to claim 6, wherein at least one group of limiting grooves (1 c 2) are arranged on the outer side of a groove (1 c 1) of a clutch piston (1 c), a limiting projection (3 b) which is matched with the limiting groove (1 c 2) in shape and size is arranged on a third sealing ring (3 a) of the first sealing assembly (3), the third sealing ring (3 a) penetrates through the limiting projection (3 b) through a fixing screw (3 c) to be fixedly connected with the clutch piston (1 c), and the fixing screw (3 c) is installed in an embedded mode.
8. The sealing mechanism of a wet clutch of a press machine according to claim 1, wherein a ring groove (1 c 3) is arranged on the periphery of a clutch piston (1 c), a second sealing component (4) is arranged in the ring groove (1 c 3) in a limiting mode, the second sealing component (4) comprises a fourth sealing ring (4 a), the fourth sealing ring (4 a) is sleeved on the ring groove (1 c 3), the size of the fourth sealing ring (4 a) is matched with that of the ring groove (1 c 3), tooth grooves (4 a 1) are arranged on the periphery of the fourth sealing ring (4 a), the tooth grooves (4 a 1) are multiple, and the tooth grooves (4 a 1) divide the surface of the fourth sealing ring (4 a) into a plurality of 'D' -shaped sealing rings.
9. The sealing mechanism of a wet clutch of a press machine according to claim 1, wherein the third sealing assembly (5) comprises a second sleeve (5 a), the second sleeve (5 a) is inserted into an oil inlet (1 a 2) of the main shaft (1 a), a plurality of annular teeth (5 a 1) are arranged on the periphery of the second sleeve (5 a), annular tooth grooves (1 a 5) which are identical in number and shape and size with the annular teeth (5 a 1) on the second sleeve (5 a) are formed in the inner wall of the oil inlet (1 a 2), the annular teeth (5 a 1) are mounted in the annular tooth grooves (1 a 5) in a limiting mode, a sealing cover (5 b) is arranged at the outward end of the second sleeve (5 a), the sealing cover (5 b) seals the connecting position of the second sleeve (5 a) and the oil inlet (1 a 2), and the sealing cover (5 b) is fixedly mounted on the main shaft (1 a) through a second fixing bolt (5 c).
10. The sealing mechanism of a wet clutch of a press machine according to claim 1, wherein the fourth sealing component (6) comprises at least one fifth sealing ring (6 a), the fifth sealing ring (6 a) is sleeved at the connection part between the output end of the oil inlet nozzle (1 a 3) and the oil duct (1 a 1), the fifth sealing ring (6 a) is tightly attached between the oil inlet nozzle (1 a 3) and the oil duct (1 a 1), the fourth sealing component (6) further comprises a sealing sleeve (6 b), the sealing sleeve (6 b) is sleeved on the outer surface of the oil inlet nozzle (1 a 3), and the sealing sleeve (6 b) can be attached to the shape of the installation part of the oil inlet nozzle (1 a 3) and the main shaft (1 a).
CN202111037725.4A 2021-09-06 2021-09-06 Sealing mechanism of wet clutch of press machine Active CN113565963B (en)

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Application Number Priority Date Filing Date Title
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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004239404A (en) * 2003-02-07 2004-08-26 Nsk Warner Kk Wet multiple-disc clutch
JP2009019685A (en) * 2007-07-11 2009-01-29 Mitsubishi Heavy Ind Ltd Power transmission device equipped with multiple-disc wet clutch
JP2011038615A (en) * 2009-08-17 2011-02-24 Sumitomo Heavy Industries Techno-Fort Co Ltd Cooling oil quantity control device of wet type clutch brake in mechanical press
CN202971656U (en) * 2012-12-10 2013-06-05 北京理工大学 Clutch device for test platform with adjustable rated power
CN104154139A (en) * 2014-07-25 2014-11-19 洛阳雷斯达传动有限公司 Wet clutch
CN104279242A (en) * 2014-08-08 2015-01-14 洛阳雷斯达传动有限公司 Wet type clutch with pressure stabilizing function
CN206988325U (en) * 2017-07-05 2018-02-09 第一拖拉机股份有限公司 A kind of wet clutch lubrication flow governor motion

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004239404A (en) * 2003-02-07 2004-08-26 Nsk Warner Kk Wet multiple-disc clutch
JP2009019685A (en) * 2007-07-11 2009-01-29 Mitsubishi Heavy Ind Ltd Power transmission device equipped with multiple-disc wet clutch
JP2011038615A (en) * 2009-08-17 2011-02-24 Sumitomo Heavy Industries Techno-Fort Co Ltd Cooling oil quantity control device of wet type clutch brake in mechanical press
CN202971656U (en) * 2012-12-10 2013-06-05 北京理工大学 Clutch device for test platform with adjustable rated power
CN104154139A (en) * 2014-07-25 2014-11-19 洛阳雷斯达传动有限公司 Wet clutch
CN104279242A (en) * 2014-08-08 2015-01-14 洛阳雷斯达传动有限公司 Wet type clutch with pressure stabilizing function
CN206988325U (en) * 2017-07-05 2018-02-09 第一拖拉机股份有限公司 A kind of wet clutch lubrication flow governor motion

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