CN215890905U

CN215890905U - Snake spring and coupler comprising same

Info

Publication number: CN215890905U
Application number: CN202122200145.4U
Authority: CN
Inventors: 周满山; 唐黎明; 刘超; 李震; 张立刚; 周新建
Original assignee: Tai'an Endless Mechanical & Electrical Technology Co ltd
Current assignee: Tai'an Endless Mechanical & Electrical Technology Co ltd
Priority date: 2021-09-13
Filing date: 2021-09-13
Publication date: 2022-02-22
Anticipated expiration: 2031-09-13

Abstract

The utility model discloses a snake spring and a coupling comprising the same. The coupler comprising the snake spring comprises two half coupling shafts, an expansion sleeve arranged on the half coupling shafts, a sealing ring arranged on the expansion sleeve, the snake spring arranged at the butt joint part of the two half coupling shafts, a check ring and a shell arranged on the snake spring, and the snake spring. The split type flexible-chain plug-in sheet capable of being cut at will of the serpentine spring effectively improves the product adaptability of the serpentine spring, and only the damaged or deformed reed needs to be replaced when the reed of the coupler is damaged or deformed. The utility model effectively reduces the time and labor cost for installation and maintenance, has simple structure and obvious effect, and is suitable for popularization and use.

Description

Snake spring and coupler comprising same

Technical Field

The utility model relates to the technical field of a serpentine spring coupler, in particular to a serpentine spring and a coupler comprising the serpentine spring.

Background

The serpentine spring coupling is the most advanced shaft connection transmission part in the international mechanical field at present, and is widely applied to heavy machinery and general machinery occasions. The existing connecting shaft of the serpentine spring coupling has two modes, one is key connection, and the other is expansion sleeve connection. The expansion sleeve is arranged inside the semi-coupling, the inner ring and the outer ring of the expansion sleeve are simultaneously tensioned through the fastening screws, and the inner ring and the equipment shaft, the outer ring and the semi-coupling are in interference fit, so that the effect of transmitting torque is achieved.

In the prior art, the expansion sleeve is arranged in the half coupling shaft for installation, and the installation process is complex because the expansion sleeve needs to be composed of a plurality of parts such as an inner ring, an outer ring and the like. In the maintenance in later stage, need open the snake spring shaft coupling completely to move equipment and just can observe the cover that expands, carry out thorough maintenance to the cover that expands, so this structural style leads to maintaining the maintenance comparatively complicated, wastes time and energy. In addition, in the operation process, the whole snake spring coupling is closed, and the real-time condition of the internal expansion sleeve cannot be observed. And the snake spring of the snake spring coupling in the prior art is composed of 2-5 arc reeds, so that the installation and the disassembly are inconvenient, the area involved in the damage and the replacement is large, the waste is easily caused, the processing technology of the snake spring with the structure is complex, the production cost is high, and the maintenance and the replacement cost is high.

Disclosure of Invention

The present invention has been made to solve the above-mentioned problems occurring in the prior art. The utility model provides a snake spring which comprises a soft link and a plurality of reeds, wherein the soft link is provided with a plurality of link units, the link units are connected end to end, and the link units are provided with holes for mounting the reeds.

Furthermore, the soft link is set to be a first soft link and a second soft link, one end of the reed is installed in a hole of the first soft link, and the other end of the reed is installed in a hole corresponding to the second soft link, so that a serpentine spring with a detachable reed is formed.

In another aspect of the utility model, a coupling comprising the serpentine spring is further provided, which comprises two half-coupling shafts, an expansion sleeve arranged on the half-coupling shafts, a sealing ring arranged on the expansion sleeve, a serpentine spring arranged at the butt joint part of the two half-coupling shafts, a retaining ring arranged on the serpentine spring and a housing, wherein the serpentine spring is the serpentine spring in the above.

Furthermore, the expansion sleeve is of an annular structure, and the section of the inner ring is an inclined plane in a ratio of 1: 6.

Further, expand and sheathe in and be provided with the first mounting hole that is used for the installation and the hole of dismantling that is used for dismantling, the screw passes first mounting hole and will expand the cover and install in the second mounting hole that corresponds on half coupling, when the shaft coupling needs to be dismantled, will tear the screw in the first mounting hole off, install in having the screwed dismantlement hole, at this moment along with the screw in of screw withstands half coupling, it is ejecting that the cover that then will expand under reaction force to continue the screw in, accomplish the dismantlement, half coupling is provided with the second mounting hole, is used for the bloated cover of installation corresponding to the first mounting hole that expands on the cover.

Furthermore, evenly distributed has the shrink groove on the semi-coupling side, the shrink groove has threely, and the contained angle of adjacent shrink groove is 120, shrink groove degree of depth is to the bloated cover mounted position on the semi-coupling, and the width is 2 mm.

Furthermore, the check rings are nylon check rings, the number of the check rings is two, the two check rings are arranged on two sides of the serpentine spring and are respectively arranged on the left side of the first soft link and the right side of the second soft link.

Furthermore, a limiting groove used for limiting the reed is arranged on the stop ring, and two ends of the reed are located in the limiting groove after installation and used for limiting the free movement of the reed.

The utility model has the following beneficial effects:

1. the snake spring is in a split type flexible-link plug-in sheet type which can be cut at will, the size of the snake spring can be cut at will according to the diameter size of the coupler, and the product adaptability of the snake spring is effectively improved.

2. The serpentine spring is formed by combining and installing the flexible links and the reeds, when the reeds of the coupler are damaged or deformed, the coupler can be opened to be replaced as required, the coupler does not need to be integrally disassembled and replaced, only the damaged or deformed reeds need to be replaced, the cost is saved, and the working efficiency is improved.

3. The serpentine spring coupler is matched with the expansion sleeve through the gap, so that the interference fit between the coupler and a shaft to be connected is realized, and the connection mode does not need high processing precision during installation and can quickly realize the connection and installation of the shaft.

4. The expansion sleeve is arranged outside the serpentine spring coupler and can be installed and adjusted on the outer side through the screw, the structural form of the expansion sleeve is greatly simplified, the installation steps are simplified, and time and labor are saved in the installation process. And can be observed from the outside in the operation process, convenient maintenance.

5. The nylon retainer ring is provided with the limiting groove, so that the stability of the serpentine spring in the operation process is ensured, and the reed is prevented from moving.

In conclusion, the utility model effectively improves the reliability of the serpentine spring coupling, effectively reduces the time and labor cost for installation and maintenance, has simple structure and obvious effect, and is suitable for popularization and use.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, wherein the same or similar elements are denoted by the same reference numerals. It is obvious that the drawings in the following description are only embodiments of the utility model, and that for a person skilled in the art, other drawings can be obtained from the provided drawings without inventive effort.

Fig. 1 is a schematic view of the serpentine spring structure of the present invention.

Fig. 2 is a schematic view of the coil spring deployment of the present invention.

Fig. 3 is a schematic diagram of the overall structure of the coupling including the serpentine spring according to the present invention.

FIG. 4 is a schematic view of the construction of the inventive semi-coupling.

Fig. 5 is a schematic view of the expansion sleeve structure of the present invention.

Fig. 6 is a schematic view of the retainer ring of the present invention.

Description of reference numerals: 1-serpentine spring, 11-first soft link, 12-second soft link, 13-link unit, 14 reed, 2-half coupling, 21-second mounting hole, 3-expansion sleeve, 31-first mounting hole, 32-disassembly hole, 3, 4-screw, 5-sealing ring, 6-retainer ring, 61-limit groove, 7, contraction groove and 8-shell.

Detailed Description

Terms such as "having," "including," and "comprising," as used with respect to the present invention, are to be understood as not specifying the presence or addition of one or more other elements or combinations thereof, in accordance with the examination guidelines.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two elements can be directly connected or indirectly connected through an intermediate medium, and the two elements can be communicated with each other, so that the specific meaning of the terms in the utility model can be understood by those skilled in the art.

In addition, technical features involved in various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other, and unless otherwise specified, devices and materials used in the following examples are commercially available, and if processing conditions are not explicitly specified, please refer to a purchased product specification or follow a conventional method in the art.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In this embodiment, as shown in fig. 1 and fig. 2, a serpentine spring is disclosed, which includes a first soft link 11, a second soft link 12, and a plurality of reeds 14, wherein a plurality of link units 13 are disposed on the soft links 11 and 12, the link units 13 are connected end to end, and holes for mounting the reeds 14 are disposed on the link units 13. One end of the reed 14 is arranged in the hole of the first soft link 11, and the other end of the reed is arranged in the corresponding hole of the second soft link 12, so that a snake spring of the detachable reed is formed. The technical purpose is as follows: snake spring 1 sets up to split type soft chain that can tailor at will and connects the slice-shaped form, can tailor the size of snake spring 1 wantonly according to the diameter size of shaft coupling, the effectual product adaptability that improves the snake spring, the form aggregate erection that adopts soft chain and reed 14 forms, when the reed 14 of shaft coupling appears damaging or warp, can open the shaft coupling and change as required, does not need whole dismantlement to change, only need to change and damage or warp reed 14, practice thrift the cost, improve work efficiency.

In the present embodiment, as shown in fig. 3 and 4, there is further provided a coupling comprising two half-couplings 2, an expansion sleeve 3 provided on the half-coupling 2, a seal ring 5 provided on the expansion sleeve 3, a serpentine spring 1 provided at a butt joint portion of the two half-couplings 2, a retainer ring 6 provided on the serpentine spring 1, and a housing 8, wherein the serpentine spring is the aforementioned middle serpentine spring 1. The expansion sleeve 3 is of an annular structure, the section of an inner ring is an inclined plane in a ratio of 1:6, a first mounting hole 31 for mounting and a dismounting hole 32 for dismounting are formed in the expansion sleeve 3, the expansion sleeve 3 is mounted in a corresponding second mounting hole 21 on the half coupling 2 through the first mounting hole 31 by a screw 4, when the coupler needs to be dismounted, the screw 4 in the first mounting hole 31 is dismounted and mounted in the dismounting hole 32 with threads, and at the moment, the expansion sleeve 3 can be ejected out under the action of the reaction force along with the screwing-in of the screw 4, so that the dismounting is completed. The half coupling 2 is provided with a second mounting hole 21 corresponding to the first mounting hole 31 on the expansion sleeve 3 for mounting the expansion sleeve 3.

In the embodiment, as shown in fig. 5, the expansion sleeve 3 is arranged outside the half coupling 2, and the expansion sleeve 3 can be installed and adjusted on the outer side by using the screw 4, so that the structural form of the expansion sleeve 3 is greatly simplified, the installation steps are simplified, and the installation process is time-saving and labor-saving. And can be observed from the outside in the operation process, convenient maintenance.

In this embodiment, as shown in fig. 4, the side surface of the semi-coupling 2 is uniformly distributed with three shrinkage grooves 7, the included angle between adjacent shrinkage grooves 7 is 120 °, each shrinkage groove 7 is a gap, the depth of each shrinkage groove 7 reaches the installation position of the expansion sleeve 3 on the semi-coupling 2, and the width of each shrinkage groove is 2 mm. The technical aim is that the coupler adopts the clearance of the shrinkage groove 7 to be matched with the expansion sleeve 3, so that the interference fit between the coupler and a shaft to be connected is realized, the connection mode does not need large processing precision during installation, and the connection and installation of the shaft can be quickly realized.

In this embodiment, as shown in fig. 6, the retainer ring 6 is provided with a limiting groove 61 for limiting the reed 14, the retainer ring 6 is a nylon retainer ring, and two retainer rings 6 are provided on two sides of the serpentine spring 1, and are respectively provided on the left side of the first soft link 11 and the right side of the second soft link 12. The retainer ring 6 is provided with a limiting groove 61 for limiting the reed 14, and the technical purpose is that two ends of the reed 14 are positioned in the limiting groove 61 after installation for limiting the free movement of the reed 14, so that the stability of the snake spring in the operation process is ensured, and the reed is prevented from moving.

In this embodiment, when the reed is deformed and needs to be replaced, the nylon retainer ring 6 on any side of the housing 8 is opened, the reed to be replaced is extracted, and a new reed is inserted according to the original position to complete the replacement of the reed.

Still other serpentine springs comprising a plurality of link units and a plurality of spring plates, and serpentine spring couplings using the technical features of the expanding sleeve clearance fit, the arrangement of the limit stop ring, etc. are all embodiments of the present invention, and the technical features of the above-mentioned embodiments can be arbitrarily combined, and in order to meet the requirements of patent laws, patent implementation rules and examination guidelines, all possible combinations of the technical features of the above-mentioned embodiments are not described again.

Therefore, in the technical field of the serpentine spring and the serpentine spring coupling, all technical contents including the serpentine spring consisting of a plurality of linking units and a plurality of reeds, the serpentine spring coupling adopting the technical characteristics of clearance fit of the expansion sleeve, arrangement of the limit retainer ring and the like are in the protection scope of the utility model. The above embodiment is only one implementation form of the serpentine spring and the serpentine spring coupling provided by the utility model, and other modifications of the scheme provided by the utility model, such as adding or reducing components or steps therein, or applying the utility model to other technical fields close to the utility model, belong to the protection scope of the utility model.

Claims

1. The utility model provides a snake spring, includes soft interlinkage and a plurality of reed, soft interlinkage is provided with a plurality of chaining units, end to end connection between every chaining unit, be provided with the hole of installation reed on the chaining unit, characterized by: the soft link is set to be a first soft link and a second soft link, one end of the reed is installed in a hole of the first soft link, and the other end of the reed is installed in a hole corresponding to the second soft link, so that the snake spring with the detachable reed is formed.

2. The utility model provides a shaft coupling containing snake spring, includes two semi-couplings, sets up the cover that expands on every semi-coupling respectively, sets up the sealing washer on the cover that expands, sets up at the snake spring of two semi-couplings butt joint positions, sets up retaining ring and shell on the snake spring, characterized by: the serpentine spring is as set forth in claim 1.

3. A coupling incorporating a serpentine spring as defined in claim 2, wherein: the expansion sleeve is of an annular structure, and the section of the inner ring is an inclined plane of 1: 6.

4. A coupling incorporating a serpentine spring as defined in claim 3, wherein: the expansion sleeve is provided with a first mounting hole for mounting and a dismounting hole for dismounting, a screw passes through the first mounting hole to mount the expansion sleeve in a corresponding second mounting hole on the semi-coupling, when the coupler needs to be dismounted, the screw in the first mounting hole is dismounted and mounted in the dismounting hole with threads, at the moment, the screw in along with the screw abuts against the semi-coupling, the expansion sleeve is ejected out by continuing the screw in under the reaction force, the dismounting is completed, the semi-coupling is provided with a second mounting hole, and the first mounting hole corresponding to the expansion sleeve is used for mounting the expansion sleeve.

5. A coupling incorporating a serpentine spring as defined in claim 4, wherein: evenly distributed has the shrink groove on the semi-coupling side, the shrink groove has threely, and the contained angle of adjacent shrink groove is 120, the shrink groove degree of depth is 2mm to the bloated cover mounted position on the semi-coupling, the width.

6. A coupling incorporating a serpentine spring as defined in claim 5, wherein: the two check rings are nylon check rings and are respectively arranged on the left side of the first soft link and the right side of the second soft link.

7. A coupling incorporating a serpentine spring as defined in claim 6, wherein: and a limiting groove for limiting the reed is arranged on the stop ring, and two ends of the reed are positioned in the limiting groove after installation and used for limiting the free movement of the reed.