Adjustable coupling

Abstract

An adjustable coupler comprises a driving part and a driven part which are the same in structure, the driving part and the driven part are symmetrically arranged, the driving part and the driven part are each provided with an installation section and a damping section, the installation sections are arranged at the ends, opposite to each other, of the driving part and the driven part, and the damping sections are arranged in the middles of the driving part and the driven part. An elastic part is arranged between the driving part and the driven part, the driving part and the driven part are sleeved with the two sides of the elastic part, the elastic part comprises a rubber ring and two pressing plates, the rubber ring is of an annular structure with the U-shaped cross section, and the pressing plates are arranged on the inner side of the vertical section of the U-shaped structure of the rubber ring; a through hole allowing the driving part or the driven part to penetrate through is formed in the middle of the pressing plate, adjusting assemblies are arranged on the driving part and the driven part, and the adjusting assemblies are arranged on the two sides of the elastic part and used for adjusting the width of the elastic part. According to the utility model, the offset can be adjusted to adapt to more equipment and working conditions.

Description

TECHNICAL FIELD

[0001] The utility model relates to the coupling related technical field, concretely relates to an adjustable coupling. BACKGROUND

[0002] The coupling is an important component for connecting the driving shaft and the driven shaft in the mechanical transmission system to realize the torque transmission, and the core function is to ensure that the two shafts can stably and efficiently transmit power during operation. In actual application, due to manufacturing errors, insufficient installation accuracy, thermal expansion during operation, load changes and vibration and other factors, the two shafts often appear different degrees of deviation, which may cause additional stress concentration of the coupling and the connected shaft system, vibration intensification, noise increase, and even cause equipment failure.

[0003] The traditional coupling mostly adopts the fixed structure, and the deviation compensation capacity is limited, and cannot be adjusted according to the actual operation. The rigid coupling has high requirements for the centering accuracy of the two shafts, and once the deviation occurs, the equipment is unstable. The elastic coupling can compensate a certain amount of deviation, but the deviation range is limited, and the tire type coupling transmits torque and compensates the relative displacement between the shafts through the rubber tire body as an elastic element. In addition, although some elastic couplings have certain deviation compensation capacity, the deviation cannot be flexibly adjusted after installation, and once the deviation exceeds the design range, the coupling needs to be disassembled and adjusted, or a new coupling needs to be replaced.

[0004] In order to solve the above problems, the utility model provides an adjustable coupling based on the tire type coupling, and the deviation can be adjusted according to the deviation in actual operation. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing an adjustable coupling, which can adjust the deviation to adapt to more equipment and working conditions.

[0006] In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

[0007] The utility model provides an adjustable coupling, including the same structure active part and driven part, the active part and driven part symmetry sets up, the active part and driven part all are equipped with the mounting section and the shock attenuation section, the mounting section sets up in the active part and driven part opposite one end, the shock attenuation section sets up in the active part and driven part's middle part, the active part and driven part middle part is equipped with the elastic part, the elastic part both sides are covered in the active part and driven part, the elastic part includes rubber ring and two pressure plates, the rubber ring is the annular structure of U shape cross section, the pressure plate sets up in the rubber ring U shape structure vertical section's inside, the pressure plate middle part is equipped with the through hole for the active part or driven part to penetrate, the active part and driven part all are equipped with the adjusting assembly, the adjusting assembly sets up in the elastic part both sides, and the adjusting assembly is used for adjusting the elastic part width.

[0008] As a preferred technical scheme, the mounting section is provided with a tightening groove along the axial direction, the mounting section is provided with a bolt hole along the radial direction, the bolt hole is perpendicular to the tightening groove, and the bolt hole is threadedly connected with a first bolt.

[0009] As a preferred technical scheme, the shock attenuation section is provided with a plurality of grooves along the radial direction.

[0010] As a preferred technical scheme, the adjusting assembly comprises a movable ring and a third bolt, the movable ring is sleeved at one end of the active part and the driven part away from the mounting section, the movable ring is slidably connected with the active part and the driven part, the third bolt penetrates the movable ring along the radial direction and abuts against the active part and the driven part, and the third bolt is threadedly connected with the movable ring.

[0011] As a preferred technical scheme, the side of the movable ring away from the mounting section is in contact with the rubber ring.

[0012] As a preferred technical scheme, the elastic part further comprises a second bolt, the rubber ring and the pressure plate are provided with through holes for the second bolt to penetrate, the inner wall of the through hole in the rubber ring is provided with a protection ring, the side of the movable ring close to the rubber ring is provided with a hole matched with the second bolt, and the second bolt is threadedly connected with the pressure plate, the protection ring and the movable ring in sequence.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1、The utility model discloses a shock attenuation section can absorb the impact and vibration when two shafts drive, reduce the dynamic load when driving, can also effectively compensate the axial relative displacement between two shafts.

[0015] 2、The utility model discloses an elastic part can compensate the radial displacement and angular displacement of two shafts caused by installation error, thermal expansion, vibration and other factors in equipment operation.

[0016] 3、The utility model discloses a certain offset is provided through the rubber ring, is used for coping with the dynamic change in transmission process, when the main shaft connects large -scale equipment, the instantaneous load of starting will produce bigger, and the offset of suitable can bear the torque produced by instantaneous load, avoids the damage of shaft coupling.

[0017] 4、The utility model discloses the width of elastic part can be adjusted through the adjustment assembly, adjusts the offset of shaft coupling, to adapt to the equipment of different load and working condition, improved the versatility of shaft coupling. DRAWINGS

[0018] The utility model discloses a specific implementation mode is further detailed in combination with the drawings:

[0019] Fig. 1 It is the structure schematic drawing of the utility model;

[0020] Fig. 2 It is the front view of the utility model;

[0021] Fig. 3 It is the section view of the utility model;

[0022] Among them, the reference signs are as follows:

[0023] 1 - active part, 2 - driven part, 3 - bolt hole, 4 - first bolt, 5 - tight slot, 6 - recess, 7 - sheet, 8 - movable ring, 9 - rubber ring, 10 - protection ring, 11 - pressboard, 12 second bolt, 13 - third bolt. Specific implementation mode

[0024] The technical scheme in the utility model embodiment will be described clearly and completely in combination with the drawings in the utility model embodiment, and obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the range of protection of the utility model.

[0025] Therefore, the following detailed description of the embodiment of the application provided in the drawings is not intended to limit the scope of the application, but only represents the selected embodiment of the application. Based on the embodiment in the application, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the scope of protection of the application. It should be noted that: similar signs and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0026] In the description of this application, it should be noted that the use of terms such as "center," "upper," "lower," "inner," and "outer" to indicate orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product is in use, is merely for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In the description of this application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection, or...

[0027] Indirect connection via an intermediate medium can refer to the internal communication between two components. Those skilled in the art will understand the specific meaning of the above terms in this application based on the specific circumstances.

[0028] Example

[0029] like Figs. 1-3 As shown, an adjustable coupling includes a driving part 1 and a driven part 2 with identical structures, which are symmetrically arranged. Both the driving part 1 and the driven part 2 are provided with a mounting section and a damping section. The mounting section is located at one end opposite to the driving part 1 and the driven part 2, and the damping section is located in the middle of the driving part 1 and the driven part 2. The two shafts to be connected are fixed by the mounting section. The mounting section of the driving part 1 fixes the driving shaft, and the mounting section of the driven part 2 fixes the driven shaft. The damping section absorbs the impact and vibration during the transmission of the two shafts, reduces the dynamic load during transmission, and can also effectively compensate for the relative displacement between the two shafts.

[0030] The elastic part is arranged between the driving part 1 and the driven part 2, the elastic part is sleeved on the driving part 1 and the driven part 2 at two sides, the elastic part comprises a rubber ring 9 and two pressing plates 11, the rubber ring 9 is annular structure with U-shaped cross section, the pressing plate 11 is arranged at the inner side of the vertical section of the U-shaped structure of the rubber ring 9, the pressing plate 11 is provided with a through hole for the driving part 1 or the driven part 2 to pass through, the driving part 1 and the driven part 2 are provided with adjusting assemblies, the adjusting assemblies are arranged at two sides of the elastic part, the adjusting assemblies are used for adjusting the width of the elastic part, the rubber ring 9 has high elastic deformation capacity, so that the elastic part arranged can compensate the radial displacement and angular displacement of the two shafts caused by installation error, thermal expansion, vibration and other factors in the equipment operation, the rubber ring 9 arranged can provide a certain offset for dynamic changes in the transmission process, when the driving shaft is connected with a large equipment, a large instantaneous load can be generated when starting, and the appropriate offset can bear the torque generated by the instantaneous load, so that the coupling is prevented from being damaged, the pressing plate 11 arranged can tightly press the rubber ring 9 on the adjusting assembly, so that the stable connection between the driving part 1 and the driven part 2 is ensured, and the adjusting assembly arranged can adjust the width of the elastic part, so that the compensation capacity and the offset of the elastic part are changed.

[0031] Further, the adjusting assembly can change the width of the elastic part by stretching or compressing the same rubber ring 9, and meanwhile the adjusting assembly can change the width of the elastic part by replacing the rubber ring 9 with different width after changing the width, so that the compensation capacity and the offset of the elastic part are changed.

[0032] It should be noted that although the offset can compensate the installation error and adapt to various dynamic changes in the operation of the coupling, the offset is not the larger the better, and the too large offset can cause stress concentration and reduce the transmission efficiency, and the too small offset cannot adapt to the dynamic changes in the operation and increases the requirement for the installation precision, so the offset of the coupling needs to be adjusted according to the specific working condition.

[0033] In some possible embodiments, the mounting section is provided with a tightening groove 5 along the axial direction, the mounting section is provided with a bolt hole 3 along the radial direction, the bolt hole 3 is perpendicular to the tightening groove 5, the first bolt 4 is threadedly connected in the bolt hole 3, after the driving shaft or the driven shaft is inserted into the mounting part, the first bolt 4 is rotated, so that the width of the tightening groove 5 is reduced, and the connection between the mounting section and the driving shaft or the driven shaft is more firm.

[0034] In some possible embodiments, the damping section is provided with a plurality of grooves 6 along the radial direction in a staggered manner, the thin piece 7 between the grooves 6 has a certain elastic deformation capacity, the groove 5 is compressed and deformed, so that the width of the groove 5 is reduced, the axial displacement between the two shafts can be compensated, and a certain impact and vibration can be absorbed.

[0035] In some possible embodiments, the adjusting assembly comprises the movable ring 8 and the third bolt 13, the movable ring 8 is sleeved on the end of the driving part 1 and the driven part 2 away from the mounting section, the two movable rings 8 are respectively in sliding connection with the driving part 1 and the driven part 2, the third bolt 13 penetrates the movable ring 8 in the radial direction and abuts against the driving part 1 and the driven part 2, and the third bolt 13 is in threaded connection with the movable ring 8. The distance between the two movable rings 8 can be adjusted by moving the movable ring 8, the width of the elastic part can be reduced by moving the two movable rings 8 towards each other, and the width of the elastic part can be increased by moving the two movable rings 8 away from each other, and when the distance is appropriate, the third bolt 13 is tightened, so that the tail of the third bolt 13 abuts against the outer surface of the driving part 1 and the driven part 2, a larger friction force is provided, the relative movement between the movable ring 8 and the driving part 1 and the driven part 2 is limited, and the width of the elastic part is fixed.

[0036] In some possible embodiments, the elastic part further comprises a second bolt, the rubber ring 9 and the pressing plate 11 are both provided with through holes for the second bolt 12 to penetrate, the through hole in the rubber ring 9 is provided with the protection ring 10 on the inner wall, for protecting the rubber ring 9 and preventing the rubber ring 9 from being torn and damaged due to instantaneous load, the side of the movable ring 8 close to the rubber ring 9 is provided with a hole matched with the second bolt 12, and the second bolt 12 is in threaded connection with the pressing plate 11, the protection ring 10 and the movable ring 8 in sequence, so as to facilitate the pressing plate 11 to press the rubber ring 9 and the movable ring 8 tightly.

[0037] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the specification is described in this way only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand. Thus, the embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein according to the above description. The scope of the present disclosure is defined by the appended claims.

Claims

1. An adjustable coupling comprising a driving part (1) and a driven part (2) of identical structure, said driving part (1) and driven part (2) being arranged symmetrically, characterised in that, The active part (1) and the driven part (2) are provided with mounting sections and damping sections, the mounting sections are arranged at the ends away from each other of the active part (1) and the driven part (2), the damping sections are arranged at the middle portions of the active part (1) and the driven part (2), elastic parts are arranged at the middle portions of the active part (1) and the driven part (2), the elastic parts are sleeved on the active part (1) and the driven part (2), the elastic part comprises a rubber ring (9) and two pressing plates (11), the rubber ring (9) is a ring structure with a U-shaped cross section, the pressing plates (11) are arranged at the inner sides of the vertical sections of the U-shaped structure of the rubber ring (9), the pressing plates (11) are provided with through holes for the active part (1) or the driven part (2) to pass through, the active part (1) and the driven part (2) are provided with adjusting assemblies, the adjusting assemblies are arranged at the two sides of the elastic part, and the adjusting assemblies are used for adjusting the width of the elastic part.

2. An adjustable coupling as claimed in claim 1, wherein, The mounting section is provided with a tightening groove (5) in the axial direction, the mounting section is provided with bolt holes (3) in the radial direction, the bolt holes (3) are perpendicular to the tightening groove (5), and the bolt holes (3) are provided with first bolts (4) in a threaded mode.

3. An adjustable coupling as defined in claim 1 wherein, The damping section is provided with a plurality of grooves (6) in the radial direction.

4. An adjustable coupling as defined in claim 1 wherein, The adjusting assembly comprises movable rings (8) and third bolts (13), the movable rings (8) are sleeved at the ends of the active part (1) and the driven part (2) away from the mounting sections, the two movable rings (8) are connected to the active part (1) and the driven part (2) in a sliding mode respectively, the third bolts (13) pass through the movable rings (8) in the radial direction and abut against the active part (1) and the driven part (2), and the third bolts (13) are connected to the movable rings (8) in a threaded mode.

5. An adjustable coupling as claimed in claim 4, wherein, The side of the movable ring (8) away from the mounting section is in contact with the rubber ring (9).

6. An adjustable coupling as claimed in claim 5, wherein, The elastic part further comprises second bolts (12), the rubber ring (9) and the pressing plate (11) are provided with through holes for the second bolts (12) to pass through, the inner wall of the through hole in the rubber ring (9) is provided with a protection ring (10), the side of the movable ring (8) close to the rubber ring (9) is provided with a hole matched with the second bolt (12), and the second bolt (12) is connected to the pressing plate (11), the protection ring (10) and the movable ring (8) in a threaded mode.

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