CN202165479U

CN202165479U - Coupler and elastic body used on same

Info

Publication number: CN202165479U
Application number: CN2011202517550U
Authority: CN
Inventors: 陈明亮; 王灿
Original assignee: CHONGQING SHINGER PUMP Co Ltd
Current assignee: CHONGQING SHINGER PUMP Co Ltd
Priority date: 2011-07-15
Filing date: 2011-07-15
Publication date: 2012-03-14
Anticipated expiration: 2021-07-15

Abstract

The utility model discloses a coupler which is convenient to use and a corresponding elastic body. The coupler comprises a driving half coupler and a driven half coupler; transmission teeth matched with each other are arranged at two opposite ends of the driving half coupler and the driven half coupler; the elastic body made of polyurethane is embedded between the two half coupler; tooth-shaped parts on the inner side of the elastic body are positioned in the gaps between the transmission teeth of the two half couplers; a positioning sleeve used for fixing the elastic body is connected with the outer side of the elastic body; and at least one cut extending outwards from the concave part of the tooth gap is arranged on the elastic body. The coupler adopting the structure has the capabilities of good wear resistance, shock resistance, and resistance to corrosion of chemical substances and the service life is long; when the elastic body is damaged and then required to be changed, under the condition that the equipment is not dismounted and the positions of the half couplers are not moved, the positioning sleeve can be mounted, and the elastic body can be taken out through the cut; likewise, a new elastic body can be mounted directly through the cut; therefore, the dismounting and moving of the equipment is avoided while the elastic body is changed, and when the mounting is performed again, the centering operation is not required again.

Description

Coupling and on elastomer

Technical field

The utility model relates to coupling, the elastomer that especially uses on it.

Background technique

Coupling is that two axles (driving shaft and driven shaft) that are used for connecting in the different institutions make it the mechanical part of common rotation with transmitting torque.General power engine mostly links by means of coupling and working machine.Coupling is made up of driven end half-coupling and drive end half-coupling two halves, is respectively applied for driving shaft and driven shaft to connect; Both surface of contact be provided with protruding to the engagement of recessed profile of tooth or protruding to protruding profile of tooth over against; Elastomer integral body in the form of a ring; The inboard is and has tooth-shape structure, and elastomer is flush-mounted between two half-couplings, and the gap shape on it between driving cog of the shape of tooth and two half-couplings is coincide and is positioned at this gap; So not only transmitting torque also plays the effect of the motion impact of buffer unit simultaneously.Such coupling widely uses.

But such coupling need carry out centering to the center of drive end and driven end equipment when mounted, and the precision prescribed of centering is high, if there is deviation in centering, with proper functioning that influences equipment and working life; And the elastomer of coupling belongs to easily damaged parts, the destruction that elastomer will cause master and slave moved end half-coupling and working equipment after damaging; And to change such elastomer, and then need move drive end and driven end equipment, elastomer could be taken out, and centering once more need be carried out when installing, it is longer to shut down turn(a)round.

Generally speaking just existing coupling is installed, changes inconvenient, just uses inconvenient.

Summary of the invention

The purpose of the utility model provides a kind of use coupling more easily.

In order to realize goal of the invention, technological scheme of the present invention is: a kind of coupling comprises initiatively half-coupling and driven half-coupling; The driving cog that matches is set on both opposite ends; Setting-in elastomer between two half-couplings, in the gap of toothed section between the driving cog of two half-couplings of elastomer inboard, the elastomer outside connects setting sleeve; Setting sleeve is used for fixing elastomer, it is characterized in that: at least one outward extending otch is set on the described elastomer.

In the technique scheme; Just driven end half-coupling, drive end half-coupling be set in the opposite end protruding to the engagement of recessed profile of tooth or protruding to protruding profile of tooth over against; The profile of tooth of two half-couplings evenly distributes along circumference; Still between both driving cogs, coupling plays the effect of transmitting torque to elastomer.But because the elastomer of the utility model is provided with an otch at least along radial direction; When the elastomer damage needs to change so, just can not dismantle equipment, not move under the situation of half-coupling position, the dismounting setting sleeve is taken out elastomer by incision then; Using new elastomer then instead installs.Dismounting and mobile device when so just having avoided the replacing elastomer also need not to carry out once more the centering operation when installing once more.The coupling of the utility model uses convenient.

Another object of the present invention provides the elastomer that uses on the above-mentioned coupling.

Technological scheme is: the elastomer that uses on a kind of coupling comprises constituting the whole edge part of elastomer and to projecting inward toothed region, it is characterized in that: at least one outward extending otch is set on the described elastomer.

Further, described otch is along the radial direction setting.

Further, described otch is stretched out by the recess between the toothed region of elastomer inboard.

Such elastomer can be replaced elastomer waste and old on the above-mentioned coupling, practices thrift the user cost of coupling, and uses and change conveniently.

Description of drawings

Fig. 1 cuts open structural representation for the elastomeric office of the utility model;

Fig. 2 is that the A-A of Fig. 1 is to sectional drawing;

Fig. 3 is that the driving cog of two half-couplings is the structural representation of protruding coupling to recessed engagement;

Fig. 4 be the driving cog of two half-couplings be protruding to protruding over against the structural representation of coupling.

Embodiment

A kind of coupling; Comprise initiatively half-coupling 10 and driven half-coupling 20, the driving cog that matches is set on both opposite ends, two half-couplings 10, setting-in elastomer 30 between 20; In the gap of toothed region 31 between the driving cog of two half-

couplings

10,20 of elastomer 30 inboards; Elastomer 30 outsides connect setting sleeve 40, and setting sleeve 40 is used for fixing elastomer 30, are provided with at least on the described elastomer 30. an outward extending otch 33.

Combine Fig. 3 and shown in Figure 4 specifically; The opposite end of two half-

couplings

10,20 is provided with driving cog; Play gearing; The structure of driving cog is anyly can play the gearing set-up mode, is provided with protruding in recessed

engagement driving tooth

11,12 on main two half-

couplings

10,20 for example shown in Figure 3 respectively; Perhaps as shown in Figure 4, be provided with respectively on two half-

couplings

10,20 protruding to protruding over against driving cog 11`, 12`; Elastomer 30 comprises integrant edge part and inside toothed region 31; On the coupling that assembling is accomplished; Toothed region 31 all is positioned at the gap of protruding adjacent teeth to recessed

engagement driving tooth

11,12, perhaps two groups adjacent protruding to protruding driving cog 11`, gap between the 12` in.Certainly, the concrete shape of toothed region 31 as far as possible and the gap shape of between cog coincide, size equal or the bigger or size that is slightly less than driving cog all can process because elastomer 30 itself is an elastic material, can play good transmitting torque and active force.

As for shown in otch 33, as shown in fig. 1, be exactly elastomer 30 integral molded plastics or mold pressing processing after the cutting form.Best described otch 33 is along the radial direction setting.Along the radial direction setting is the area that as far as possible shortens otch 33, reduces the influence to elastomer 30 overall performances, the short and small otch 33 of trying one's best simultaneously elastomer 30 also the most easy for removal and installation.

How to realize to realize as for described setting sleeve 40, for example on Fig. 3, the setting sleeve shown in 4 40 attachment hole 41 is set, can setting sleeve 40 and elastomer 30 be located by connecting with screw to the then a lot of modes in the location of elastomer 30.The concrete shape of two half-

couplings

10,20 also can have a variety of mode of executions, for example the shape of Fig. 3, the Hollow Cylindrical Shaft shown in 4; The Placement of two half-

couplings

10,20 and driving shaft and driven shaft is also a lot, for example on two half-

couplings

10,20

attachment hole

12,22 is set respectively, can two half-

couplings

10,20 be connected with master and slave moving axis with screw or bolt then.Can certainly utilize the identical mode of other any function, for example the utility model can be with two half-

couplings

10,20 and the welding of master and slave moving axis, even also need not to dismantle coupling because change elastomer 30.

Further, described elastomer 30 adopts polyurethane material to process.Such elastic properties of materials is suitable, is convenient to draw back elastomer 30 by otch 33 places and dismantles or install, and the while is wear resistant corrosion resistant again, and working life is more lasting, and the plasticity of processing is good.

Further, be symmetrical set two threaded connection holes 32 on described elastomer 30 outer circumferential faces, described setting sleeve 40 is spirally connected with elastomer 30.Be convenient to like this that setting sleeve 40 connects and fixing elastomer 30, avoid screw to connect both simultaneously again and need very big strength could screw in elastomer 30, avoid on the elastomer 30 pressurized inconsistent and cause stress concentrated, reduce working life.

Further, described otch 33 is stretched out by the recess 34 between the toothed region 31 of elastomer 30 inboards.Position between the toothed region in twos 31 just as shown in Figure 1; Because the active force between the driving cog of two half-

couplings

10,20 mainly is to transmit through the toothed region on the elastomer 30 31; So only the recess between toothed region 31 34 is provided with otch 33; Could guarantee the structural form and the function of elastomer 30 to the intensity of elastomer 30 and the influence minimum of configuration like this.

Preferably, the recess 34 between the toothed region 31 of the described elastomer in any place, front 30 inboards is " R " shape.Certainly; Recess 34 is not that plane projection is " R " shape exactly just; Mainly like this being meant that the plane projection of recess as shown in Figure 1 34 has two opposed U-shaped positions in the edge near elastomer 30, is in order to increase the profile line length of recess 34 ends, to avoid this position stress to concentrate like this; Prevent this thinnest edge breakage and cause whole elastomer 30 to scrap, the waste user cost.The shape of in other words such plane projection is also just identical with the shape of cross section of dovetail groove.

The method for using of coupling is: when needs are changed elastomer; Screw is backed out; Earlier take off setting sleeve 40 vertically, the elastomer 30 that utilizes otch 33 to change then takes off, and changes the new elastomer 30 with otch 33 again; Install according to above-mentioned opposite order, thereby realize not moving the elastomeric replacing of realization coupling that drive end and driven end equipment just can be quick, simple and direct.

Generally speaking the coupling of the utility model has the following advantages:

1. convenient to disassembly

Under the situation that need not remove drive end equipment (motor) or driven end equipment (pump, speed reducer etc.), just can carry out the replacing then and there of easily damaged parts elastomer 30 easily, quickly and easily.

2. long service life, maintenance period is short

In the coupling; The polyurethane material of elastomer 30 imports of unique easily damaged parts is processed; Ability with fabulous wear-resistant, shock resistance and chemically resistant material corrosion; Be longer than present conventional elastomer working life far away, process by the fine finishing center, make its longer service life along the toothed region 31 that inner circumference distributes.

3. safety first

Two Cock screws with 180 ° of symmetries in order to prevent the slide relative of 30 on setting sleeve 40 and elastomer, are fixed on setting sleeve 40 on the elastomer 30 simultaneously.

Claims

1. coupling; Comprise initiatively half-coupling (10) and driven half-coupling (20); The driving cog that matches is set on both opposite ends; Setting-in elastomer (30) between two half-couplings (10,20), the inboard toothed region (31) of elastomer (30) are positioned at the gap between the driving cog of two half-couplings (10,20), and elastomer (30) outside connects setting sleeve (40); Setting sleeve (40) is used for fixing elastomer (30), it is characterized in that: at least one outward extending otch (33) is set on the described elastomer (30).

2. coupling according to claim 1 is characterized in that: described elastomer (30) adopts polyurethane material to process.

3. coupling according to claim 1 is characterized in that: described otch (33) is along the radial direction setting.

4. coupling according to claim 1 is characterized in that: be symmetrical set two threaded connection holes (32) on described elastomer (30) outer circumferential face, described setting sleeve (40) is spirally connected with elastomer (30).

5. coupling according to claim 1 is characterized in that: described otch (33) is stretched out by the recess (34) between the toothed region (31) of elastomer (30) inboard.

6. according to any described coupling in the claim 1 to 5, it is characterized in that: the recess (34) between the toothed region (31) of described elastomer (30) inboard is " R " shape.

7. the elastomer that uses on the coupling comprises constituting the whole edge part of elastomer (30) and to projecting inward toothed region (31), it is characterized in that: at least one outward extending otch (33) is set on the described elastomer (30).

8. elastomer according to claim 7 is characterized in that: described otch (33) is along the radial direction setting.

9. according to claim 7 or 8 described elastomers, it is characterized in that: described otch (33) is stretched out by the recess (34) between the toothed region (31) of elastomer (30) inboard.