A serpentine spring coupling

Abstract

The application discloses a snake-shaped spring coupling, which comprises a snake-shaped spring, a pair of shaft sleeves, a left sleeve body and a right sleeve body, a plurality of extension blocks are fixed on the left sleeve body, and an insertion slot is formed between each extension block; a plurality of sliding grooves corresponding to the insertion slots are arranged on the right sleeve body, a pair of locking insertion blocks are slidably arranged in each sliding groove, the end of each locking insertion block is connected with the lower surface of the adjacent extension block through clamping slot insertion, a thrust spring is arranged between the adjacent pair of locking insertion blocks, and an unlocking assembly is further arranged on the right sleeve body, which is used for making each locking insertion block separate from the corresponding clamping slot and keeping the state. In daily use, the left sleeve body and the right sleeve body are folded, each locking insertion block is inserted into the corresponding clamping slot under the action of the corresponding thrust spring, the unlocking assembly is operated to make each locking insertion block separate from the corresponding clamping slot and keep the state, the assembly and disassembly of the left sleeve body and the right sleeve body are facilitated, and the convenience of maintaining the snake-shaped spring coupling is improved.

Description

Technical Field

[0001] This invention relates to the field of coupling technology, specifically a serpentine spring coupling. Background Technology

[0002] A serpentine spring coupling is a type of metal elastic coupling that uses the elastic deformation of serpentine spring plates to transmit torque and has certain compensation for relative misalignment between the two shafts, vibration reduction, and buffering performance.

[0003] It mainly consists of two half-couplings, two half-covers, two sealing rings, and a serpentine spring. The serpentine spring is embedded in the tooth groove of the half-coupling to transmit torque. During operation, the axial force of the tooth surface of the driving end on the serpentine spring drives the driven end to transmit torque.

[0004] The two outer half-covers are usually connected to each other by bolts. In order to ensure that the serpentine spring works in the optimal position, maintenance personnel generally need to disassemble the two outer half-covers periodically for inspection and restore the serpentine spring to the optimal working position, which wastes a lot of manpower and resources. Summary of the Invention

[0005] The present invention aims to solve one of the technical problems existing in the prior art.

[0006] This application provides a serpentine spring coupling, including a serpentine spring, a pair of bushings, a left sleeve and a right sleeve. Several extension blocks are fixed on the left sleeve, and slots are formed between the extension blocks. Several sliding grooves corresponding to the slots are provided on the right sleeve. A pair of locking blocks are slidably installed in each sliding groove. The end of each locking block is engaged with the lower surface of the adjacent extension block through a slot. A thrust spring is provided between adjacent pairs of locking blocks. An unlocking component is also provided on the right sleeve. The unlocking component is used to disengage each locking block from the corresponding slot and retain it.

[0007] The slot is located on the bottom surface of the extension section of the extension block. The cross-sectional shape is a right triangle with the inclined surface facing the left sleeve. The ends of each locking block are also right triangles.

[0008] The unlocking component includes a rotating ring rotatably mounted on the peripheral wall of the right sleeve, and several unlocking slide plates slidably installed in each slot. Each unlocking slide plate is connected to the rotating ring via a transmission component and to a corresponding pair of locking blocks via a pressing component. The peripheral wall of the rotating ring is provided with several reset slots. The other end of each unlocking slide plate extends into one end of each reset slot. A reset spring is provided between the side wall and the other end of each reset slot. The inner peripheral wall of the rotating ring and the outer peripheral wall of the right sleeve are provided with limiting components.

[0009] The transmission assembly includes a transmission column fixed at the bottom of the reset groove, and an inclined groove and a straight groove are provided on the unlocking slide. The inclined groove is connected to the straight groove at the end away from the left sleeve, and the straight groove extends circumferentially along the rotating ring.

[0010] The pressing assembly includes a pressing block fixed on the top surface of the adjacent ends of a pair of adjacent locking blocks. Each pressing block is inclined toward the surface of the adjacent extension block in a direction away from the left sleeve. Each unlocking slide has a trapezoidal groove at the end away from the transmission assembly. The two sides of the trapezoidal groove are inclined, and a pair of pressing blocks are inserted in the trapezoidal groove.

[0011] The limiting component includes a diamond-shaped groove, and a straight sliding groove extending along its axis is provided on the peripheral wall of the right sleeve. A sliding block is slidably installed in the straight sliding groove. A limiting rod that slides with the diamond-shaped groove is fixed on the top of the sliding block. A limiting groove is provided at one end of the inner ring of the diamond-shaped groove, and a triangular lever is provided at the outer ring of the same end.

[0012] The limiting components are several and spaced apart circumferentially.

[0013] The right end of the right sleeve is provided with several inner arc grooves at intervals, and the inner circumferential wall of the rotating ring is provided with several arc-shaped sliders at intervals, and each arc-shaped slider is slidably installed in each inner arc groove.

[0014] Each arc-shaped slider corresponds to a reset slot. Each reset slot has an outer arc groove at its bottom. Each unlocking slide has a pair of parallel grooves that extend along the sliding direction of the unlocking slide. Each parallel groove has a bolt inserted into it. The lower end of each bolt passes through the corresponding outer arc groove and is connected to the bottom of the inner arc groove through a screw hole.

[0015] It also includes several pins, which are fixedly installed at the end of each reset slot away from the unlocking slide, and each reset spring is sleeved on the corresponding pin at the end away from the unlocking slide.

[0016] The beneficial effects of this invention are as follows:

[0017] When assembling the left and right sleeves, align each unlocking slide with the corresponding slot, close the left and right sleeves, and under the action of each thrust spring, the outer end of each locking block is inserted into the corresponding slot to complete the assembly of the left and right sleeves. Compared with the prior art, the assembly of the two sleeves in this application is faster.

[0018] When the left and right sleeves need to be separated, rotate the rotating ring counterclockwise. The limiting rod slides to one side of the triangular lever, the return springs are compressed, the transmission column enters the end of the straight groove, and the unlocking slides continue to penetrate deeper into the slot. The two sides of each trapezoidal groove push the corresponding pair of pressing blocks closer to each other, and the outer ends of each locking plate disengage from the corresponding slot. Then, release the rotating ring, and the return springs release part of their elastic potential energy, pushing the rotating ring to rotate clockwise. The transmission column moves to the connection position between the straight groove and the inclined groove, and the limiting rod enters the bottom of the limiting groove. At this time, the rotating ring can no longer rotate, and correspondingly, the transmission column cannot enter the inclined groove, so that the position of each unlocking slide is fixed, and the left and right sleeves can be separated. Compared with the existing technology, this method facilitates the separation of the left and right sleeves and eliminates the risk of bolts falling off or being lost.

[0019] After the left and right sleeves are separated, the rotating ring is rotated counterclockwise. The limiting rod disengages from the limiting groove and is pushed out of the limiting groove by the other inclined surface of the triangular lever. Then the rotating ring is released, and each reset spring releases its elastic potential energy, pushing the rotating ring to rotate counterclockwise. Each transmission column enters the end of the inclined groove, and each unlocking slide slides out of its slot. Each trapezoidal groove disengages from its contact with each pressing block. Each thrust spring releases its elastic potential energy, pushing each pair of locking blocks to separate from each other, completing the reset. When the left and right sleeves are assembled, they can automatically engage with the slots on the bottom surface of the corresponding extension blocks. Compared with the prior art, the disassembly and assembly efficiency of the left and right sleeves in this application is high, reducing the consumption of manpower and material resources. Attached Figure Description

[0020] Figure 1 This is a top view of the serpentine spring coupling in the embodiments of this application;

[0021] Figure 2 This is a three-dimensional view of the serpentine spring and a pair of bushings in an embodiment of this application;

[0022] Figure 3 This is a diagram illustrating the internal structure of the serpentine spring coupling in an embodiment of this application.

[0023] Figure 4 This is a right view of the left axle sleeve in an embodiment of this application;

[0024] Figure 5 This is a schematic diagram of the cross-sectional structure in the AA direction in the embodiments of this application.

[0025] Figure Labels

[0026] 1-Serpentine spring, 2-Sleeve, 3-Left sleeve, 4-Right sleeve, 5-Extension block, 6-Slot, 7-Slide groove, 8-Locking insert, 9-Card slot, 10-Thrust spring, 11-Unlocking assembly, 111-Rotating ring, 112-Unlocking slide plate, 113-Reset groove, 114-Reset spring, 115-Transmission column, 116-Slanted groove, 117-Straight groove, 118-Extrusion block, 119-Trapezoidal groove, 12-Restriction assembly, 121-Rhombus groove, 122-Straight slide groove, 123-Sliding block, 124-Limit rod, 125-Restriction groove, 126-Triangular lever, 13-Inner arc groove, 14-Arc slider, 15-Outer arc groove, 16-Parallel groove, 17-Bolt. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0028] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0029] The serpentine spring coupling provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0030] Example 1:

[0031] like Figures 1 to 5 As shown in the embodiment of this application, a serpentine spring 1 coupling is provided. The serpentine spring 1 coupling includes a serpentine spring 1, a pair of bushings 2, a left sleeve 3 and a right sleeve 4. Several extension blocks 5 are fixed on the left sleeve 3, and slots 6 are formed between each extension block 5. Several sliding grooves 7 corresponding to each slot 6 are provided on the right sleeve 4. A pair of locking blocks 8 are slidably installed in each sliding groove 7. The end of each locking block 8 is engaged with the lower surface of the adjacent extension block 5 through a slot 9. A thrust spring 10 is provided between adjacent pairs of locking blocks 8. An unlocking component 11 is also provided on the right sleeve 4. The unlocking component 11 is used to disengage each locking block 8 from the corresponding slot 9 and keep it in place.

[0032] In this embodiment of the application, the slot 9 is provided on the bottom surface of the extension section of the extension block 5, the cross-sectional shape is a right triangle and the inclined surface faces the left sleeve 3, and the ends of each locking block 8 are right triangles.

[0033] Because of the use of the aforementioned serpentine spring coupling, when assembling the left sleeve 3 and the right sleeve 4, as the left sleeve 3 and the right sleeve 4 are closed, the inclined outer ends of each locking block 8 contact the outer ends of the corresponding extension blocks 5. During the closing process of the left sleeve 3 and the right sleeve 4, each locking block 8 is pushed away from the corresponding extension blocks 5, and each thrust spring 10 is compressed and stores elastic potential energy until the left sleeve 3 and the right sleeve 4 are closed. The outer ends of each locking block 8 correspond to the corresponding slots 9, and the thrust spring 10 releases its elastic potential energy, pushing each locking block 8 towards the corresponding slots 9, so that the outer ends of each locking block 8 are inserted into the corresponding slots 9. The left sleeve 3 and the right sleeve 4 are then assembled and cannot be separated.

[0034] When it is necessary to separate the left sleeve 3 and the right sleeve 4, the unlocking component 11 is operated to disengage each locking block 8 from the corresponding slot 9, thereby separating the left sleeve 3 and the right sleeve 4. Compared with the prior art, the disassembly and assembly of the two sleeves in this application is convenient and quick.

[0035] Example 2:

[0036] In this embodiment, in addition to the structural features of the aforementioned embodiments, the unlocking component 11 includes a rotating ring 111 rotatably sleeved on the periphery of the right sleeve 4 and several unlocking slide plates 112 respectively slidably installed in each slot 6. Each unlocking slide plate 112 is connected to the rotating ring 111 via a transmission component and to a corresponding pair of locking blocks 8 via a pressing component. The periphery of the rotating ring 111 is provided with several reset grooves 113. The other end of each unlocking slide plate 112 extends into one end of each reset groove 113. A reset spring 114 is provided between the side wall and the other end of each reset groove 113. A limiting component 12 is provided between the inner periphery of the rotating ring 111 and the outer periphery of the right sleeve 4.

[0037] In this embodiment of the application, the transmission assembly includes a transmission column 115 fixed at the bottom of the reset groove 113, and an inclined groove 116 and a straight groove 117 are provided on the unlocking slide plate 112. The inclined groove 116 is connected to the straight groove 117 at the end away from the left sleeve 3, and the straight groove 117 extends circumferentially along the rotating ring 111.

[0038] In this embodiment of the application, the pressing component includes a pressing block 118 fixed on the top surface of the adjacent ends of a pair of adjacent locking blocks 8. Each pressing block 118 is inclined toward the surface of the adjacent extension block 5 in a direction away from the left sleeve 3. Each unlocking slide plate 112 has a trapezoidal groove 119 at the end away from the transmission component. The two sides of the trapezoidal groove 119 are inclined. A pair of pressing blocks 118 are inserted in the trapezoidal groove 119.

[0039] In this embodiment of the application, a plurality of inserts 118 are also included, which are respectively fixed on the end of each reset groove 113 away from the unlocking slide plate 112, and the end of each reset spring 114 away from the unlocking slide plate 112 is sleeved on the corresponding insert 118.

[0040] like Figure 1 and Figure 3As shown, due to the use of the aforementioned serpentine spring coupling, when it is necessary to separate the left sleeve 3 and the right sleeve 4, the rotating ring 111 is rotated counterclockwise. The limiting rod slides to one side of the triangular lever 126, each return spring 114 is compressed, the transmission column 115 enters the end of the straight groove 117, each unlocking slide plate 112 continues to penetrate deeper into the slot 6, the two sides of each trapezoidal groove 119 push the corresponding pair of pressing blocks 118 closer to each other, the outer end of each locking plate disengages from the corresponding slot 9, and then the rotating ring 111 is released. Each return spring 114 releases part of its elastic potential energy, pushing the rotating ring 111 to rotate clockwise. The transmission column 115 moves to the connection position between the straight groove 117 and the inclined groove 116. The limiting component 12 restricts the continued rotation of the rotating ring 111. Correspondingly, the transmission column 115 cannot enter the inclined groove 116, causing each unlocking slide plate 111 to... With position 2 fixed, the left sleeve 3 and right sleeve 4 can be separated. After separation, the rotating ring 111 is rotated counterclockwise, the limiting component 12 releases the restriction on the rotating ring 111, and then the rotating ring 111 is released. Each reset spring 114 releases its elastic potential energy, pushing the rotating ring 111 to rotate counterclockwise. Each transmission column 115 enters the end of the inclined groove 116, each unlocking slide plate 112 slides out of each slot 6, each trapezoidal groove 119 disengages from each pressing block 118, each thrust spring 10 releases its elastic potential energy, pushing each pair of locking inserts 8 to separate from each other, completing the reset. When the left sleeve 3 and right sleeve 4 are assembled, they can automatically engage with the slots 6 on the bottom surface of the corresponding extension block 5. Compared with the prior art, the disassembly and assembly efficiency of the left sleeve 3 and right sleeve 4 in this application is high, reducing the consumption of manpower and material resources.

[0041] Example 3:

[0042] In this embodiment, in addition to the structural features of the aforementioned embodiments, the limiting component 12 includes a rhomboid groove 121, and a straight sliding groove 122 extending along its axis is provided on the peripheral wall of the right sleeve 4. A sliding block 123 is slidably installed in the straight sliding groove 122, and a limiting rod 124 that slides and engages with the rhomboid groove 121 is fixedly provided on the top of the sliding block 123. A limiting groove 125 is provided at one end of the inner ring of the rhomboid groove 121, and a triangular lever 126 is provided on the outer ring at the same end.

[0043] In this embodiment of the application, the limiting component 12 has several components that are spaced apart circumferentially.

[0044] like Figure 3As shown, due to the use of the aforementioned serpentine spring 1 coupling, the tip of the lower end of the inner ring of the rhomboid groove 121 is offset to the left relative to the tip of the lower end of the outer ring of the rhomboid groove 121. When the rotating ring 111 rotates counterclockwise relative to the right sleeve 4, the rhomboid groove 121 and the limiting rod 124 move relative to each other. The limiting rod 124 contacts the right side of the inner ring of the rhomboid groove 121 and slides towards the upper end of the rhomboid groove 121 until it contacts the right side of the triangular lever 126. Then, the rotating ring 111 resets clockwise under the action of the return spring 114, and the limiting rod 124 enters the limiting groove. When the rotating ring 111 is rotated counterclockwise again, the limiting rod... 124 disengages from the limiting groove 125 and slides to the left side of the rhomboid groove 121 in cooperation with the other inclined surface of the triangular lever 126. Then, the rotating ring 111 is released, and each reset spring 114 releases its elastic potential energy to push the rotating ring 111 to rotate clockwise. The limiting rod 124 returns from the left side of the rhomboid groove 121 to the lower end of the rhomboid groove 121. Compared with the prior art, this application only requires rotating the rotating ring 111 counterclockwise when releasing the left sleeve 3 and the right sleeve 4. When it is necessary to reset each structure, it is only necessary to rotate the rotating ring 111 counterclockwise again, which greatly improves the ease of disassembly and assembly of the left sleeve 3 and the right sleeve 4.

[0045] Example 4:

[0046] In this embodiment, in addition to the structural features of the aforementioned embodiments, the right end of the peripheral wall of the right sleeve 4 is provided with a plurality of inner arc grooves 13 at intervals, and the inner peripheral wall of the rotating ring 111 is provided with a plurality of arc-shaped sliders 14 at intervals, and each arc-shaped slider 14 is slidably installed in each inner arc groove 13.

[0047] In this embodiment of the application, each arc-shaped slider 14 corresponds to each reset groove 113. Each reset groove 113 has an outer arc groove 15 at its bottom. Each unlocking slide plate 112 is symmetrically provided with a pair of parallel grooves 16 extending along the sliding direction of the unlocking slide plate 112. Each parallel groove 16 is provided with a bolt 17. The lower end of each bolt 17 passes through the corresponding outer arc groove 15 and is connected to the bottom of each inner arc groove 13 through a screw hole.

[0048] like Figure 4 and Figure 5 As shown, due to the use of the aforementioned serpentine spring 1 coupling, when the rotating ring 111 rotates relative to the right sleeve 4, each arc-shaped slider 14 slides in the corresponding inner arc groove 13, and the bolt 17 segment of each bolt 17 slides in the corresponding outer arc groove 15 and the corresponding parallel groove 16. The cross-sectional diameter of the outer end of each bolt 17 is greater than the width of each parallel groove 16.

[0049] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0050] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A serpentine spring coupling, comprising a serpentine spring, a pair of bushings, a left bushing and a right bushing, characterized in that, The left sleeve is fixed with several extension blocks, and slots are formed between the extension blocks. The right sleeve is provided with several sliding grooves corresponding to each slot. A pair of locking blocks are slidably installed in each sliding groove. The end of each locking block is engaged with the lower surface of the adjacent extension block through a slot. A thrust spring is provided between adjacent pairs of locking blocks. The right sleeve is also provided with an unlocking component, which is used to disengage each locking block from the corresponding slot and keep it in place. The unlocking component includes a rotating ring rotatably fitted on the peripheral wall of the right sleeve, and several unlocking slides slidably installed in each slot. Each unlocking slide is connected to the rotating ring via a transmission component and to a corresponding pair of locking blocks via a pressing component. The peripheral wall of the rotating ring is provided with several reset slots. The other end of each unlocking slide extends into one end of each reset slot. A reset spring is provided between the side wall and the other end of each reset slot. A limiting component is provided on the inner peripheral wall of the rotating ring and the outer peripheral wall of the right sleeve. The transmission assembly includes a transmission column fixed at the bottom of the reset groove, and an inclined groove and a straight groove are provided on the unlocking slide plate. The inclined groove is connected to the straight groove at the end away from the left sleeve, and the straight groove extends circumferentially along the rotating ring. The pressing assembly includes a pressing block fixed on the top surface of the adjacent ends of a pair of adjacent locking blocks. Each pressing block is inclined toward the surface of the adjacent extension block in a direction away from the left sleeve. Each unlocking slide has a trapezoidal groove at the end away from the transmission assembly. The two sides of the trapezoidal groove are inclined. A pair of pressing blocks are inserted in the trapezoidal groove. The limiting component includes a rhomboid groove, and a straight sliding groove extending along its axis is provided on the peripheral wall of the right sleeve. A sliding block is slidably installed in the straight sliding groove. A limiting rod that slides with the rhomboid groove is fixed on the top of the sliding block. A limiting groove is provided at one end of the inner ring of the rhomboid groove, and a triangular lever is provided at the outer ring of the same end.

2. The serpentine spring coupling according to claim 1, characterized in that, The slot is located on the bottom surface of the extension section of the extension block, with a cross-sectional shape of a right triangle and the inclined surface facing the left sleeve. The ends of each locking block are also right triangles.

3. A serpentine spring coupling according to claim 1, characterized in that, The limiting components are of several kinds and are spaced apart along the circumference.

4. A serpentine spring coupling according to claim 1, characterized in that, The right end of the peripheral wall of the right sleeve is provided with several inner arc grooves at intervals, and the inner peripheral wall of the rotating ring is provided with several arc-shaped sliders at intervals, and each arc-shaped slider is slidably installed in each inner arc groove.

5. A serpentine spring coupling according to claim 4, characterized in that, Each of the arc-shaped sliders corresponds to a reset slot. Each reset slot has an outer arc groove at its bottom. Each unlocking slide plate has a pair of parallel grooves that extend along the sliding direction of the unlocking slide plate. Each parallel groove has a bolt inserted into it. The lower end of each bolt passes through the corresponding outer arc groove and is connected to the bottom of each inner arc groove through a screw hole.

6. A serpentine spring coupling according to claim 1, characterized in that, It also includes several pins, which are fixedly installed at the end of each reset slot away from the unlocking slide plate, and each reset spring is sleeved on the corresponding pin at the end away from the unlocking slide plate.

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