CN219549418U

CN219549418U - Diaphragm coupling

Info

Publication number: CN219549418U
Application number: CN202320672266.5U
Authority: CN
Inventors: 张佳俊
Original assignee: Wuxi Zhongxinrui Technology Co ltd
Current assignee: Wuxi Zhongxinrui Technology Co ltd
Priority date: 2023-03-30
Filing date: 2023-03-30
Publication date: 2023-08-18
Anticipated expiration: 2033-03-30

Abstract

The utility model relates to the technical field of diaphragm couplings, in particular to a diaphragm coupling, which comprises shaft sleeves arranged in pairs, wherein rigid elements and diaphragms are arranged between the shaft sleeves arranged in pairs, bolts are arranged on the shaft sleeves and the rigid elements, the bolts on the shaft sleeves or the bolts on the rigid elements can only be connected with adjacent diaphragms, embedded holes are formed in the shaft sleeves and the rigid elements, and one ends of the bolts, far away from the shaft sleeves or the rigid elements, are positioned in the embedded holes on the adjacent shaft sleeves or the embedded holes on the adjacent rigid elements. The diaphragm coupler can control the limiting assembly by screwing the adjusting rod, changes the distance between the end face of the limiting piece and the end cap end of the bolt, plays a role in limiting the axial movement range of the diaphragm, can prevent the diaphragm from being damaged due to overlarge axial movement, further limits the torsion range of the diaphragm after the nut of the bolt is extended into the embedded hole, and reduces the possibility of damage of the diaphragm due to overlarge torsion range.

Description

Diaphragm coupling

Technical Field

The utility model relates to the field of diaphragm couplers, in particular to a diaphragm coupler.

Background

The coupling is a mechanical part for connecting two shafts (a driving shaft and a driven shaft) in different mechanisms to rotate together so as to transmit torque, and the coupling has various types, wherein the coupling is a metal flexible coupling, namely a diaphragm coupling, which is a transmission device for transmitting torque by taking a metal elastic diaphragm as a flexible element, and has the advantages of large torque transmission capacity, misalignment of a reliable diaphragm deformation absorbing unit, no relative movement among the parts, no abrasion, no noise, long vibration reduction life and no lubrication.

The diaphragm coupling consists of at least one diaphragm and two shaft sleeves, the diaphragms are fastened on the shaft sleeves by pins, the backlash between the diaphragms and the shaft sleeves is generally not loosened or caused, some manufacturers provide two diaphragms or three diaphragms, one or two rigid elements are arranged between the shaft sleeves at two ends, and two sides of the diaphragm coupling are connected to the shaft sleeves again, but the diaphragms can only be connected with the shaft sleeves or the rigid units at two sides of the diaphragm respectively, namely the shaft sleeves or the rigid units at two sides of the diaphragm can only be connected with the diaphragms by pins, but the two adjacent shaft sleeves or the rigid units cannot be connected by pins, the torque or the axial force transmission between the two adjacent shaft sleeves or the rigid units can only be realized by the diaphragms, the diaphragms are force transmission mediums, most of the diaphragm couplings can be influenced by the axial load and the torque at the same time during the operation of the diaphragm coupling, particularly when the equipment is started or the diaphragm is in the operation with the load, fatigue cracks can occur, meanwhile, the diaphragm can be partially deformed, and the excessive axial force can also cause the diaphragm to accelerate, so that the diaphragm coupling with better compensation capacity is required to be provided.

Disclosure of Invention

The utility model aims to provide a diaphragm coupler with better axial force compensation.

The utility model solves the problems by adopting the following technical scheme: the utility model provides a diaphragm coupling, includes the axle sleeve that sets up in pairs, sets up axle sleeve in pairs and is equipped with rigid element and diaphragm, all be equipped with the bolt on axle sleeve and the rigid element, the bolt on the axle sleeve or the bolt on the rigid element all can only be connected with adjacent diaphragm, the embedded hole that all has been seted up on axle sleeve and the rigid element, the one end that the axle sleeve was kept away from to the bolt or kept away from the rigid element all is located the inside of embedded hole on the adjacent axle sleeve or the adjacent rigid element, the inside of embedded hole is equipped with the spacing subassembly that is used for limiting bolt movable range.

The limiting assembly comprises an adjusting rod in threaded connection with the shaft sleeve or in threaded connection with the rigid element, a movable limiting piece is arranged at the position, opposite to the end face of the bolt, of the embedded hole, an adjusting assembly in contact with the end face of the adjusting rod and the end face of the limiting piece are arranged, after the adjusting rod rotates, the adjusting assembly drives the limiting piece to move, and the distance between the limiting piece and the bolt is changed.

As a preferred embodiment of the diaphragm coupling according to the present utility model, there is provided: the bolt comprises a stud in threaded connection with the shaft sleeve or in threaded connection with the rigid element, a nut is arranged at one end of the stud, which is positioned outside the shaft sleeve or outside the rigid element, and the nut of the bolt on the shaft sleeve or the nut of the bolt on the rigid element can be inserted into the embedded hole on the adjacent shaft sleeve or the embedded hole on the adjacent rigid element.

As a preferred embodiment of the diaphragm coupling according to the present utility model, there is provided: the inner wall of the embedded hole is provided with a threaded hole, the adjusting rod is located in the threaded hole, the adjusting assembly comprises a first wedge block arranged on the inner end face of the embedded hole, the adjusting rod is connected with the first wedge block through a limiting piece which can only enable the adjusting rod to rotate relatively to the first wedge block, one end, far away from the bolt, of the limiting piece is provided with a second wedge block, and the inclined face of the first wedge block is in contact with the inclined face of the second wedge block.

As a preferred embodiment of the diaphragm coupling according to the present utility model, there is provided: the inner wall of the embedded hole far away from one side of the bolt is provided with a linear groove used for limiting the linear movement of the first wedge block and the linear movement of the second wedge block, and the non-inclined side of the first wedge block and the non-inclined side of the second wedge block are in contact fit with the inner wall of the linear groove.

As a preferred embodiment of the diaphragm coupling according to the present utility model, there is provided: the embedded hole is internally provided with an elastic piece, the inner wall of the embedded hole is provided with an annular flange, and two ends of the elastic piece are respectively propped against the side face of the embedded hole and the side face of the limiting piece.

As a preferred embodiment of the diaphragm coupling according to the present utility model, there is provided: and one end of the limiting piece, which is close to the bolt, is provided with a flexible cushion layer.

As a preferred embodiment of the diaphragm coupling according to the present utility model, there is provided: the elastic piece is a special-shaped spring piece, the two ends of the elastic piece are in an outward-expansion horn shape, the diameter of the spring gradually decreases from the two ends to the middle, and a nut of the bolt is positioned in the elastic piece.

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

this diaphragm coupling accessible twists the regulation pole and controls spacing subassembly, change the interval of nut end and limiting piece terminal surface on the bolt, play the effect of restriction diaphragm axial displacement scope, can avoid the diaphragm to damage because of axial displacement is too big, further extend the nut of bolt to inlay in the hole after, the torsion scope of diaphragm is restricted, reduce the diaphragm because of torsion scope too big and damage's possibility, set up the both ends in inlaying the hole more step and be after the elastic component that expands loudspeaker shape outward, when the nut of bolt is located the elastic component inside, the diaphragm is deflected because of the moment of torsion after, the nut can contact with the elastic component inner wall, the elastic component takes place to warp, the impact that the diaphragm was twistd, avoid the direct and inlay downthehole wall collision of bolt, further reduced the possibility that the diaphragm damaged.

Drawings

Fig. 1 is a schematic structural view of an embodiment of the present utility model.

Fig. 2 is a cross-sectional view of an embodiment of the present utility model.

Fig. 3 is an enlarged view of the utility model at a in fig. 2.

FIG. 4 is a schematic diagram of a limiting assembly according to an embodiment of the present utility model.

Fig. 5 is a schematic structural view of an elastic member according to an embodiment of the present utility model.

Wherein: 1. a shaft sleeve; 2. a rigid element; 3. a membrane; 4. a bolt; 5. embedding holes; 6. a linear slot; 7. an adjusting rod; 8. a first wedge block; 9. a restriction member; 10. a second wedge block; 11. a flexible cushion layer; 12. an elastic member.

Detailed Description

The present utility model will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present utility model and not limited to the following examples.

Referring to fig. 1-5, this embodiment provides a diaphragm coupling, which includes a pair of shaft sleeves 1, a plurality of rigid elements 2 and diaphragms 3 are disposed between the pair of shaft sleeves 1, the number of the rigid elements 2 such as the number of the diaphragms 3 plus the number of the shaft sleeves 1 minus one, that is, only one diaphragm 3 is disposed between each of the adjacent shaft sleeves 1 and the rigid elements 2 or between each of the adjacent rigid elements 2 and the rigid elements 2, and only the adjacent shaft sleeves 1 and the rigid elements 2 or between the adjacent rigid elements 2 and the rigid elements 2 can be connected by the diaphragms 3, so that the two cannot be directly connected, and the force or torque cannot be directly transmitted.

Bolts 4 are arranged on the shaft sleeve 1 and the rigid element 2, and the bolts 4 on the shaft sleeve 1 or the bolts 4 on the rigid element 2 can only be connected with the adjacent diaphragm 3.

The bolt 4 comprises a stud in threaded connection with the shaft sleeve 1 or in threaded connection with the rigid element 2, a nut is arranged at one end of the stud outside the shaft sleeve 1 or outside the rigid element 2, embedded holes 5 are formed in the shaft sleeve 1 and the rigid element 2, the nut of the bolt 4 on the shaft sleeve 1 or the nut of the bolt 4 on the rigid element 2 can be inserted into the embedded holes 5 on the adjacent shaft sleeve 1 or the embedded holes 5 on the adjacent rigid element 2, when the nut extends into the embedded holes 5, if the diaphragm 3 generates larger distortion deflection, the side surface of the nut can be abutted against the inner wall of the embedded holes 5 to limit the diaphragm 3 to deflect continuously, and therefore the purpose of protecting the diaphragm 3 is achieved.

The inside of inlaying the hole 5 is equipped with the spacing subassembly that is used for restricting bolt 4 range of movement, spacing subassembly includes the regulation pole 7 with axle sleeve 1 threaded connection or rigid element 2 threaded connection, twist regulation pole 7 steerable its and axle sleeve 1 or rigid element 2 take place relative movement, the one end of regulation pole 7 extends to inlaying in the hole 5, the position relative with bolt 4 terminal surface in inlaying the hole 5 is equipped with mobilizable limiter 9, the terminal surface of regulation pole 7 and the terminal surface of limiter 9 are equipped with the regulation subassembly that touches the complex, after adjusting the pole 7 and rotate, regulation subassembly drives limiter 9 and removes, change limiter 9 and bolt 4's interval, thereby control diaphragm 3's axial displacement distance, prevent that diaphragm 3 from appearing excessive axial displacement because of great axial force, in order to play the effect of protection diaphragm 3.

The adjusting component comprises a first wedge block 8 arranged on the inner end face of the embedded hole 5 of the adjusting rod 7, the adjusting rod 7 and the first wedge block 8 are connected through a limiting piece which only enables the adjusting rod 7 and the first wedge block 8 to rotate relatively, one end of the limiting piece 9, far away from the bolt 4, is provided with a second wedge block 10, the inclined face of the first wedge block 8 is in contact with the inclined face of the second wedge block 10, an elastic piece 12 is arranged in the embedded hole 5, an annular flange is arranged on the inner wall of the embedded hole 5, two ends of the elastic piece 12 are respectively abutted to the side face of the embedded hole 5 and the side face of the limiting piece 9, after the adjusting rod 7 rotates, the first wedge block 8 and the second wedge block 10 can move relatively, after the second wedge block 10 moves, the distance between the limiting piece 9 and a nut of the bolt 4 changes back, and accordingly the distance between the limiting piece 9 and the nut is adjusted.

Wherein, the inner wall of the side of the embedded hole 5 away from the bolt 4 is provided with a linear groove 6 for limiting the linear movement of the first wedge block 8 and the linear movement of the second wedge block 10, the linear groove 6 comprises but is not limited to a rectangular groove or a special-shaped groove, the non-inclined side of the first wedge block 8 and the non-inclined side of the second wedge block 10 are in contact fit with the inner wall of the linear groove 6, and under the action of the linear groove 6, the first wedge block 8 and the second wedge block 10 can only linearly move under the action of the linear groove 6.

Further, the end, close to the bolt 4, of the limiting piece 9 is provided with a flexible cushion layer 11, so that impact between the nut and the end face of the limiting piece 9 can be absorbed, and the influence of axial force on the diaphragm 3 is further reduced.

The elastic piece 12 is a special-shaped spring piece, the two ends of the elastic piece are in an outward-expansion horn shape, the diameters of the springs gradually decrease from the two ends to the middle, the nut of the bolt 4 is positioned in the elastic piece 12, when the nut of the bolt 4 is positioned in the elastic piece 12, the diaphragm 3 deflects due to torque, the nut contacts with the inner wall of the elastic piece 12, the elastic piece 12 deforms, torsional impact of the diaphragm 3 is absorbed, the bolt 4 is prevented from directly colliding with the inner wall of the embedded hole 5, and the possibility of damage of the diaphragm 3 is further reduced.

The foregoing description of the utility model is merely exemplary of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions, without departing from the scope of the utility model as defined in the accompanying claims.

Claims

1. The utility model provides a diaphragm coupling, includes axle sleeve (1) that set up in pairs, sets up to be equipped with rigid element (2) and diaphragm (3) between axle sleeve (1) in pairs, all be equipped with bolt (4) on axle sleeve (1) and the rigid element (2), bolt (4) on axle sleeve (1) or the bolt (4) on the rigid element (2) all can only be connected with adjacent diaphragm (3), its characterized in that: the shaft sleeve (1) and the rigid element (2) are provided with embedded holes (5), one ends of the bolts (4) far away from the shaft sleeve (1) or far away from the rigid element (2) are respectively positioned in the embedded holes (5) on the adjacent shaft sleeve (1) or the embedded holes (5) on the adjacent rigid element (2), and limiting assemblies used for limiting the moving range of the bolts (4) are arranged in the embedded holes (5);

the limiting assembly comprises an adjusting rod (7) in threaded connection with the shaft sleeve (1) or in threaded connection with the rigid element (2), a movable limiting piece (9) is arranged at a position, opposite to the end face of the bolt (4), in the embedded hole (5), an adjusting assembly in contact fit is arranged on the end face of the adjusting rod (7) and the end face of the limiting piece (9), after the adjusting rod (7) rotates, the adjusting assembly drives the limiting piece (9) to move, and the distance between the limiting piece (9) and the bolt (4) is changed.

2. A diaphragm coupling according to claim 1, wherein: the bolt (4) comprises a stud which is in threaded connection with the shaft sleeve (1) or in threaded connection with the rigid element (2), a nut is arranged at one end of the stud, which is positioned outside the shaft sleeve (1) or outside the rigid element (2), and the nut of the bolt (4) on the shaft sleeve (1) or the nut of the bolt (4) on the rigid element (2) can be inserted into the embedded hole (5) on the adjacent shaft sleeve (1) or the embedded hole (5) on the adjacent rigid element (2).

3. A diaphragm coupling according to claim 2, wherein: threaded holes are formed in the inner wall of the embedded hole (5), the adjusting rod (7) is located in the threaded holes, the adjusting assembly comprises a first wedge block (8) arranged on the inner end face of the embedded hole (5) and located on the adjusting rod (7), the adjusting rod (7) and the first wedge block (8) are connected through a limiting piece which can only enable the adjusting rod and the first wedge block to rotate relatively, one end, far away from the bolt (4), of the limiting piece (9) is provided with a second wedge block (10), and the inclined face of the first wedge block (8) is in contact with the inclined face of the second wedge block (10).

4. A diaphragm coupling according to claim 3, wherein: the inner wall of one side of the embedded hole (5) far away from the bolt (4) is provided with a linear groove (6) used for limiting the linear movement of the first wedge block (8) and the linear movement of the second wedge block (10), and the non-inclined side of the first wedge block (8) and the non-inclined side of the second wedge block (10) are in contact fit with the inner wall of the linear groove (6).

5. A diaphragm coupling according to claim 4, wherein: an elastic piece (12) is arranged in the embedded hole (5), an annular flange is arranged on the inner wall of the embedded hole (5), and two ends of the elastic piece (12) are respectively propped against the side face of the embedded hole (5) and the side face of the limiting piece (9).

6. A diaphragm coupling according to claim 5, wherein: one end of the limiting piece (9) close to the bolt (4) is provided with a flexible cushion layer (11).

7. A diaphragm coupling according to claim 5 or 6, wherein: the elastic piece (12) is a special-shaped spring piece, two ends of the elastic piece are in an outward-expansion trumpet shape, the diameter of the spring gradually decreases from two ends to the middle, and a nut of the bolt (4) is positioned in the elastic piece (12).