CN212717686U

CN212717686U - Dust protected universal joint

Info

Publication number: CN212717686U
Application number: CN202021551731.2U
Authority: CN
Inventors: 吴志红
Original assignee: Nanjing Weizide Transmission Machinery Co ltd
Current assignee: Nanjing Weizide Transmission Machinery Co ltd
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2021-03-16
Anticipated expiration: 2030-07-30

Abstract

The utility model discloses a dust protected universal joint, including first transmission shaft, be equipped with the external splines in the inner chamber of first transmission shaft one end, the slip card is equipped with the internal spline in the inner chamber of external splines, the one end of internal spline is equipped with the second transmission shaft. The utility model discloses well dustproof sleeve can remove along with the internal spline, thereby ensured that dustproof sleeve establishes all the time in the outside of internal spline, and then effectually completely cut off external dust, prevent that it from getting into inside internal spline and the external spline, normal use for universal joint provides the guarantee, it removes to move the oil brush through the oil storage annulus, can be with the even surface of paining at dustproof sleeve of the lubricating oil of oil storage intracavity, thereby the frictional force between accomodating sleeve and dustproof sleeve has been reduced, and then the life of dustproof sleeve has been prolonged, cooperation through first fixed disk and second fixed disk is used, universal joint's quick assembly disassembly has been realized, thereby universal joint's maintenance duration has been shortened.

Description

Dust protected universal joint

Technical Field

The utility model relates to a shaft coupling technical field specifically is a dust protected universal joint.

Background

The universal coupling utilizes the characteristics of its mechanism, makes the diaxon not at same axis, can realize the diaxon that couples under the condition that has the axis contained angle and revolve in succession to transmit torque and motion reliably, the biggest characteristics of universal coupling are: the universal coupling has the advantages of large angular compensation capability, compact structure, high transmission efficiency, different included angles of two shaft clamps of the universal coupling with different structural types, generally between 5 degrees and 45 degrees.

Present concertina type universal joint is mostly open-air operation when using to inside leading to external dust very easily to get into internal spline and external spline, and then influencing universal joint's normal use, in addition, current concertina type universal joint's coupling assembling is mostly fixed welding with the transmission shaft subassembly, in case break down, will need expend a large amount of time and maintain, for this reason we propose a dust protected universal joint and be used for solving above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a dust protected universal joint to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a dust-proof universal coupling comprises a first transmission shaft, wherein an outer spline is arranged in an inner cavity at one end of the first transmission shaft, an inner spline is arranged in an inner cavity of the outer spline in a sliding clamp manner, a second transmission shaft is arranged at one end of the inner spline, one end of the second transmission shaft can be in contact with the first transmission shaft, a containing sleeve is sleeved outside one end of the first transmission shaft, a dust-proof sleeve is arranged in the inner cavity of the containing sleeve in a sliding clamp manner, the dust-proof sleeve is movably sleeved outside the first transmission shaft and the inner spline, a fixing ring is arranged at one end of the dust-proof sleeve and is fixedly connected with the second transmission shaft, an oil storage ring is sleeved outside the dust-proof sleeve in a sliding manner, one side of the oil storage ring can be in contact with the containing sleeve, the other side of the oil storage ring can be in contact with, the inner side of the oil storage ring is provided with oil brushes which are symmetrically arranged, one side of each oil brush is in contact with the outer surface of the dustproof sleeve, and one end of the first transmission shaft and one end of the second transmission shaft are both detachably provided with connecting components.

As a preferred technical scheme of the utility model, the one end of accomodating the sleeve outside is equipped with the spacing box of symmetric distribution, the outside of spacing box is equipped with spacing sleeve, the slip card is equipped with the gag lever post in the spacing sleeve's the inner chamber, be equipped with the limiting plate on the gag lever post, limiting plate slip card is established in spacing sleeve's inner chamber, one side of limiting plate is equipped with spacing spring, spacing spring's one end and spacing sleeve's inner chamber lateral wall fixed connection, the outside of oil storage ring is equipped with the stopper that the symmetry set up, spacing hole has been seted up on the stopper, the one end of stopper can slip the card locate in the inner chamber of spacing box, the one end of gag lever post can run through spacing box and slip the card and establish in spacing hole.

As an optimal technical scheme of the utility model, the one end of gag lever post is run through limit sleeve and is equipped with spacing ball at its end, the surface of spacing ball covers and is equipped with one deck antiskid line.

As a preferred technical scheme of the utility model, the outside of dustproof sleeve is equipped with the slider that the symmetry set up, accomodate the spout of seting up the symmetric distribution on the telescopic inner chamber lateral wall, the slider slide card is established in the spout.

As a preferred technical scheme of the utility model, the one end of first transmission shaft all is equipped with first fixed disk with the one end of second transmission shaft, set up the fixed orifices that the array distributes on the first fixed disk, coupling assembling's one end is equipped with the second fixed disk, one side of second fixed disk is equipped with the bolt that the array distributes, the one end of bolt can run through the fixed orifices and insert at its terminal screw thread and be equipped with the nut.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses well dust sleeve can remove along with the internal spline to guaranteed that dust sleeve establishes all the time in the outside of internal spline, and then effectually isolated with external dust, prevent that it from getting into internal spline and external spline inside, provide the guarantee for universal joint's normal use.

2. The utility model discloses an oil storage ring drives the oil brush and removes, can be with the even surface of paining at dustproof sleeve of the lubricating oil of oil storage intracavity to reduced and accomodate the frictional force between sleeve and dustproof sleeve, and then prolonged dustproof sleeve's life.

3. The utility model discloses a cooperation of first fixed disk and second fixed disk is used, has realized universal joint's quick assembly disassembly to universal joint's maintenance duration has been shortened.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a part of the structure of the present invention;

FIG. 3 is a schematic view of the connection of the partial structure of the present invention;

fig. 4 is an enlarged structural diagram of a portion a in fig. 3 according to the present invention.

In the figure: 1. a first drive shaft; 11. an external spline; 12. an internal spline; 13. a first fixed disk; 14. a fixing hole; 2. a second drive shaft; 3. a storage sleeve; 31. a dust-proof sleeve; 32. a fixing ring; 33. an oil storage ring; 34. an oil inlet pipe; 35. oil brushing; 36. a limiting box; 37. a limiting sleeve; 38. a limiting rod; 39. a limiting plate; 310. a limiting spring; 311. a limiting block; 312. a limiting hole; 313. a limiting ball; 314. a slider; 315. a chute; 4. a connecting assembly; 41. a second fixed disk; 42. a bolt; 5. and a nut.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a dust-proof universal coupling comprises a first transmission shaft 1, wherein an outer spline 11 is arranged in an inner cavity at one end of the first transmission shaft 1, an inner spline 12 is arranged in an inner cavity of the outer spline 11 in a sliding clamp manner, a second transmission shaft 2 is arranged at one end of the inner spline 12, one end of the second transmission shaft 2 can be in contact with the first transmission shaft 1, a containing sleeve 3 is sleeved outside one end of the first transmission shaft 1, a dust-proof sleeve 31 is arranged in the inner cavity of the containing sleeve 3 in a sliding clamp manner, the dust-proof sleeve 31 is movably sleeved outside the first transmission shaft 1 and the inner spline 12, a fixing ring 32 is arranged at one end of the dust-proof sleeve 31, the fixing ring 32 is fixedly connected with the second transmission shaft 2, an oil storage ring 33 is sleeved outside the dust-proof sleeve 31 in a sliding manner, an oil storage cavity is formed in the oil storage ring 33, one side of the oil, an oil inlet pipe 34 is arranged on the outer side of the oil storage ring 33, a user can add lubricating oil into the oil storage cavity through the oil inlet pipe 34, oil brushes 35 which are symmetrically arranged are arranged on the inner side of the oil storage ring 33, the lubricating oil which is filled in the oil storage cavity can gradually permeate into the oil brushes 35, one side of each oil brush 35 is in contact with the outer surface of the dustproof sleeve 31, a connecting assembly 4 is detachably arranged at one end of the first transmission shaft 1 and one end of the second transmission shaft 2, when the universal coupling is used in daily life, the user can fix the universal coupling on equipment through the connecting assembly 4, when the equipment runs, if the lengths of the first transmission shaft 1 and the second transmission shaft 2 are insufficient, the second transmission shaft 2 pulls the internal spline 12 to move until the internal spline 12 is pulled to a proper position, when the second transmission shaft 2 moves, the dustproof sleeve 31 is driven by the fixing ring 32 to move, and slides, the outside that internal spline 12 was located to the dustproof sleeve 31 that is located the storage sleeve 3 outside this moment will overlap to effectual isolated external dust prevents that it from getting into inside internal spline 12 and the 11 external splines, provides the guarantee for universal joint's normal use.

The limiting box 36 is symmetrically distributed at one end of the outer side of the receiving sleeve 3, the limiting sleeve 37 is arranged at the outer side of the limiting box 36, the limiting rod 38 is arranged in the inner cavity of the limiting sleeve 37 in a sliding clamping manner, the limiting plate 39 is arranged on the limiting rod 38, the limiting plate 39 is arranged in the inner cavity of the limiting sleeve 37 in a sliding clamping manner, the limiting spring 310 is arranged at one side of the limiting plate 39, one end of the limiting spring 310 is fixedly connected with the inner cavity side wall of the limiting sleeve 37, the limiting block 311 is symmetrically arranged at the outer side of the oil storage ring 33, the limiting hole 312 is formed in the limiting block 311, one end of the limiting block 311 can be arranged in the inner cavity of the limiting box 36 in a sliding clamping manner, one end of the limiting rod 38 can penetrate through the limiting box 36 and is arranged in the limiting hole 312 in a sliding clamping manner, when the universal coupling is used for a period of time, a user can pull the limiting rod 38 outwards to separate, then the user can pull oil storage ring 33, take stopper 311 out from spacing box 36, the user can loosen gag lever post 38 this moment, under spacing spring 310 spring action, can produce a driving force to limiting plate 39, thereby make gag lever post 38 reset, the user can make a round trip to pull oil storage ring 33 this moment, in the time of oil storage ring 33 removal, lubricating oil in the oil storage intracavity will permeate gradually on the oil brush 35, the oil brush 35 that oil storage ring 33 inboard was equipped with this moment can be with the even surface of paining at dust sleeve 31 of lubricating oil, thereby the frictional force of accomodating between sleeve 3 and dust sleeve 31 has been reduced, and then the life of dust sleeve 31 has been prolonged.

One end of the limiting rod 38 penetrates through the limiting sleeve 37, the limiting ball 313 is arranged at the tail end of the limiting sleeve, a layer of anti-slip pattern is covered on the outer surface of the limiting ball 313, a user can pull the limiting ball 313 to move the limiting rod 38, and the anti-slip pattern covered on the outer surface of the limiting ball 313 can play a role in increasing friction and facilitating pulling.

The outside of dustproof sleeve 31 is equipped with the slider 314 that the symmetry set up, offers the spout 315 of symmetric distribution on the inner chamber lateral wall of accomodating sleeve 3, and slider 314 slide card is established in spout 315, and when dustproof sleeve 31 removed, slider 314 will slide in spout 315 this moment to the removal of dustproof sleeve 31 is led.

One end of first transmission shaft 1 and the one end of second transmission shaft 2 all are equipped with first fixed disk 13, set up array distribution's fixed orifices 14 on the first fixed disk 13, coupling assembling 4's one end is equipped with second fixed disk 41, one side of second fixed disk 41 is equipped with array distribution's bolt 42, bolt 42's one end can run through fixed orifices 14 and insert at its terminal screw thread and be equipped with nut 5, when universal joint breaks down or the part damages in the use, the user can take off nut 5, universal joint will be disassembled into two sets of coupling assembling 4 and a set of transmission shaft subassembly this moment, the user can carry out quick maintenance and change to impaired department, cooperation through first fixed disk 13 and second fixed disk 41 is used, universal joint's quick dismouting has been realized, thereby universal joint's maintenance time has been shortened.

The working principle is as follows: when the universal coupling is used in daily life, a user can fix the universal coupling on equipment through the connecting component 4, when the equipment is operated, if the lengths of the first transmission shaft 1 and the second transmission shaft 2 are not enough, the second transmission shaft 2 can pull the inner spline 12 to move until the inner spline 12 is pulled to a proper position, when the second transmission shaft 2 moves, the dustproof sleeve 31 is driven by the fixing ring 32 to move so as to slide out of the accommodating sleeve 3, the dustproof sleeve 31 positioned outside the accommodating sleeve 3 is sleeved outside the inner spline 12, so that external dust is effectively isolated and prevented from entering the inner spline 12 and the outer spline 11, the normal use of the universal coupling is guaranteed, after the universal coupling is used for a period of time, the user can pull the limiting rod 38 outwards to separate one end of the limiting rod 38 from the limiting hole 312, at this time, the user can add the lubricating oil into the oil storage cavity in the oil storage ring 33 through the oil inlet pipe 34, then the user can pull the oil storage ring 33, the limiting block 311 is pulled out of the limiting box 36, at this time, the user can loosen the limiting rod 38, under the elastic action of the limiting spring 310, a pushing force can be generated on the limiting plate 39, so that the limiting rod 38 is reset, at this time, the user can pull the oil storage ring 33 back and forth, the lubricating oil in the oil storage cavity gradually permeates into the oil brush 35 while the oil storage ring 33 moves, at this time, the oil brush 35 arranged on the inner side of the oil storage ring 33 can uniformly paint the lubricating oil on the outer surface of the dustproof sleeve 31, so that the friction force between the accommodating sleeve 3 and the dustproof sleeve 31 is reduced, the service life of the dustproof sleeve 31 is prolonged, when the universal coupling breaks down or the components are damaged in the use process, the user can take down, at this moment, the universal coupling is disassembled into two groups of connecting assemblies 4 and a group of transmission shaft assemblies, a user can quickly maintain and replace a damaged part, the universal coupling is quickly disassembled and assembled by using the first fixing disc 13 and the second fixing disc 41 in a matched mode, and therefore the maintenance time of the universal coupling is shortened.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a dust protected universal joint, includes first transmission shaft (1), its characterized in that: the oil-water separator is characterized in that an external spline (11) is arranged in an inner cavity at one end of the first transmission shaft (1), an inner spline (12) is arranged in an inner cavity of the external spline (11) in a sliding clamping manner, a second transmission shaft (2) is arranged at one end of the inner spline (12), one end of the second transmission shaft (2) can be in contact with the first transmission shaft (1), a containing sleeve (3) is sleeved outside one end of the first transmission shaft (1), a dustproof sleeve (31) is arranged in the inner cavity of the containing sleeve (3) in a sliding clamping manner, the dustproof sleeve (31) is movably sleeved outside the first transmission shaft (1) and the inner spline (12), a fixing ring (32) is arranged at one end of the dustproof sleeve (31), the fixing ring (32) is fixedly connected with the second transmission shaft (2), an oil storage ring (33) is sleeved outside the dustproof sleeve (31) in a sliding manner, one side of the oil storage ring (33) can be in, the other side of oil storage ring (33) can contact with solid fixed ring (32), the outside of oil storage ring (33) is equipped with into oil pipe (34), the inboard of oil storage ring (33) is equipped with oil brush (35) of symmetry setting, one side of oil brush (35) contacts with the surface of dustproof sleeve (31), the one end of first transmission shaft (1) and the one end of second transmission shaft (2) all can be dismantled and be equipped with coupling assembling (4).

2. The dust-proof universal coupling according to claim 1, wherein: one end of the outer side of the containing sleeve (3) is provided with limit boxes (36) which are symmetrically distributed, a limiting sleeve (37) is arranged on the outer side of the limiting box (36), a limiting rod (38) is clamped in the inner cavity of the limiting sleeve (37) in a sliding manner, a limiting plate (39) is arranged on the limiting rod (38), the limiting plate (39) is slidably clamped in the inner cavity of the limiting sleeve (37), one side of the limit plate (39) is provided with a limit spring (310), one end of the limit spring (310) is fixedly connected with the side wall of the inner cavity of the limit sleeve (37), the outer side of the oil storage ring (33) is provided with symmetrically arranged limit blocks (311), a limiting hole (312) is arranged on the limiting block (311), one end of the limiting block (311) can be clamped in the inner cavity of the limiting box (36) in a sliding way, one end of the limiting rod (38) can penetrate through the limiting box (36) and is clamped in the limiting hole (312) in a sliding mode.

3. The dust-proof universal coupling according to claim 2, wherein: one end of the limiting rod (38) penetrates through the limiting sleeve (37) and is provided with a limiting ball (313) at the tail end of the limiting sleeve, and a layer of anti-skid grains is coated on the outer surface of the limiting ball (313).

4. The dust-proof universal coupling according to claim 1, wherein: the outside of dustproof sleeve (31) is equipped with slider (314) that the symmetry set up, set up symmetrically distributed's spout (315) on the inner chamber lateral wall of accomodating sleeve (3), slider (314) slip card is established in spout (315).

5. The dust-proof universal coupling according to claim 1, wherein: the one end of first transmission shaft (1) and the one end of second transmission shaft (2) all are equipped with first fixed disk (13), set up fixed orifices (14) that the array distributes on first fixed disk (13), the one end of coupling assembling (4) is equipped with second fixed disk (41), one side of second fixed disk (41) is equipped with bolt (42) that the array distributes, the one end of bolt (42) can run through fixed orifices (14) and insert at its terminal screw and be equipped with nut (5).