An adjustable differential slip ring and differential slip shaft system

Abstract

The present invention relates to the technical field of differential shafts, and in particular to an adjustable differential ring and a differential shaft system, wherein the differential shaft system comprises a shaft body and a plurality of adjustable differential rings sleeved on the shaft body; the adjustable differential ring comprises an inner ring seat, an outer ring body, a control component and a plurality of first slide frames, the inner ring seat is provided with a first air port capable of receiving gas from the outside; the first slide frame is inserted in the inner ring seat, a friction ring belt is inserted in each first slide frame, the axis of the friction ring belt is perpendicular to the axis of the inner ring seat, a closed friction loop is formed in the first slide frame, and the belt surface is in friction contact with the end surface of the outer ring body, the first slide frame is connected to the first air port, and when inflated, the first slide frame can synchronously drive the friction ring belt to slide along the axis direction of the inner ring seat, so as to change the tension on the coil by changing the friction force; the control component can control the rotation of the friction ring belt to change the contact position between the friction ring belt and the end surface of the outer ring body, thereby reducing wear.

Description

Technical Field

[0001] The invention relates to the technical field of differential slip shafts, and in particular to an adjustable differential slip ring and a differential slip shaft system. Background Art

[0002] The slip shaft is a device used to control material tension. It is mainly used in industrial equipment such as lithium battery slitting machines. It mainly uses air power and friction to adjust the tension of the coil, thereby improving product quality and production efficiency. The main function of the slip shaft is to control the tension, elongation and end surface uniformity of the coil. It is suitable for slitting various thin film materials, such as battery separators, composite films, etc.

[0003] In the related art, for example, Chinese patent CN106904499B discloses a dual-air path slip differential shaft, which includes an air shaft body and at least two closely arranged dual-air path slip differential rings sleeved on the air shaft body, the dual-air path slip differential ring friction piston on the left side is closely adjacent to the friction ring on the right side, and then the air supply passages of the piston holes where the friction piston and the transverse piston are located are connected with separate air supply systems, so that the functions of controlling the locking force and the tensioning force respectively can be realized, the transverse piston can control the locking force, and the friction piston can abut against the friction ring, thereby generating friction force to control the tensioning force.

[0004] Although the above-mentioned dual-air path slip-differential shaft can control the tension force by generating friction force, it is found in actual use that the friction contact position between the friction piston and the friction ring remains unchanged, which not only causes the friction piston and the friction ring to wear more severely, but also after long-term use, slippage may occur between the friction piston and the friction ring, thereby affecting the adjustment of the tension force. Summary of the invention

[0005] Based on this, it is necessary to provide an adjustable differential ring and a differential shaft system to address the problem of poor reliability of the current differential shaft during use.

[0006] The above purpose is achieved through the following technical solutions:

[0007] An adjustable differential slip ring, the adjustable differential slip ring comprising:

[0008] An inner ring seat, wherein a first gas port is disposed on an inner peripheral wall of the inner ring seat, and the first gas port is configured to receive gas from the outside;

[0009] An outer ring body, the outer ring body is sleeved on the inner ring seat and can rotate relative to the inner ring seat, and the outer ring body is used to roll up the coiled material; a plurality of support blocks are inserted on the outer peripheral wall of the outer ring body, the plurality of support blocks are arranged at intervals along the circumferential direction, and the plurality of support blocks can synchronously slide along the radial direction of the inner ring seat to support the roll of the coiled material;

[0010] A plurality of first slide frames, each of which is inserted into the inner ring seat and arranged at intervals along the circumferential direction; a friction ring belt is inserted into each of the first slide frames, the axis of the friction ring belt is perpendicular to the axis of the inner ring seat, and the belt surface is in friction contact with the end surface of the outer ring body; the first slide frame is connected to the first air port, and when inflated, the first slide frame can synchronously drive the friction ring belt to slide along the axial direction of the inner ring seat to change the friction force between the friction ring belt and the end surface of the outer ring body;

[0011] A control component is configured to control the rotation of the friction ring belt to change the contact position between the friction ring belt and the end surface of the outer ring body.

[0012] Furthermore, the control component includes a second air port and a plurality of second sliding frames, the second air port being arranged on the inner circumferential wall of the inner ring seat and being configured to receive gas from the outside; the second sliding frame is inserted between the first sliding frame and the friction ring belt, and can synchronously follow the movement of the first sliding frame, the second sliding frame and the second air port are connected, and when inflated, the second sliding frame can synchronously drive the friction ring belt to slide along the radial direction of the inner ring seat, so as to drive the friction ring belt to move along the friction circuit through the friction contact between the friction ring belt and the end face of the outer ring body.

[0013] Furthermore, the adjustable differential ring is configured to have a first working state and a second working state according to different tensions required for the coil. When the tension required for the coil is less than a preset tension, the adjustable differential ring is in the first working state, and is inflated through the second air port, so that the second slide frame synchronously drives the friction ring belt to slide along the radial direction of the inner ring seat and in the axial direction away from the inner ring seat, and the distance moved by the friction ring belt is positively correlated with the tension required for the coil; when the tension required for the coil is greater than the preset tension, the adjustable differential ring is in the second working state, and is inflated through the first air port, so that the first slide frame synchronously drives the friction ring belt to move along the axial direction of the inner ring seat and in the direction close to the outer ring body, and the distance moved by the friction ring belt is positively correlated with the tension required for the coil.

[0014] Furthermore, the adjustable differential ring further comprises a driving assembly, and the driving assembly is configured to provide a driving force for the multiple support blocks to slide synchronously along the radial direction of the inner ring seat.

[0015] Furthermore, the drive assembly includes a third air port, an adjustment ring, an elastic member and a plurality of wedge blocks, the third air port being arranged on the inner circumferential wall of the inner ring seat and being configured to receive gas from the outside; the adjustment ring being coaxially inserted in the outer ring body and being able to slide along the axial direction of the outer ring body; the elastic member being connected between the support block and the outer ring body, and under the action of the elastic member, the support block has a tendency to move inward along the radial direction of the outer ring body; the plurality of wedge blocks are all inserted in the outer ring body and are arranged one-to-one with the support blocks, the wedge surfaces of the wedge blocks face the corresponding support blocks and form a guiding fit with the support blocks, and the wedge blocks and the adjustment ring form a stop fit; the adjustment ring is connected to the third air port, and when inflated, the adjustment ring can synchronously drive the support block to slide outward along the radial direction of the inner ring seat through the wedge block.

[0016] Furthermore, the elastic member comprises an elastic ring strip, which is simultaneously sleeved on the outside of the outer ring body and all the support blocks and has a tendency to shrink.

[0017] Furthermore, the adjustable differential ring also includes three bearings, two of which are inserted between the outer ring body and the inner ring seat and arranged at intervals along the axial direction of the inner ring seat; and the other bearing is inserted between the adjustment ring and all the wedge blocks.

[0018] Furthermore, the shape of the friction ring belt is set to be a rounded rectangle.

[0019] Furthermore, a plurality of balls are inserted on the outer peripheral wall of the inner ring seat, and the plurality of balls are arranged at intervals along the circumferential direction and can roll freely.

[0020] The present invention further provides a slip differential shaft system, which comprises a shaft body and a plurality of any one of the above-mentioned adjustable slip differential rings sleeved on the shaft body.

[0021] The beneficial effects of the present invention are:

[0022] The present invention relates to an adjustable slip ring and a slip shaft system, the slip shaft system comprising an axis body and a plurality of adjustable slip rings sleeved on the axis body; when in use, firstly, a roll of a coiled material is sleeved on the slip shaft system, and then a plurality of support blocks are driven to synchronously slide radially outwardly along an inner ring seat, so that the support blocks are pushed against the inner peripheral wall of the roll to support the roll; then the axis body is driven to rotate, and the axis body drives the inner ring seat to rotate at the same speed, and the inner ring seat drives the roll to rotate differentially through the friction between the friction ring belt and the outer ring body, so that the coiled material is gradually wound on the roll; with the rotation of the axis body, the number of winding layers of the coiled material gradually increases, and the required tension gradually increases, and at the same time, air is inflated through the first air port, so that the first sliding frame synchronously drives the friction ring belt along the axial direction, Slide in the direction close to the outer ring body to increase the friction between the friction ring belt and the end face of the outer ring body by increasing the positive pressure between the friction ring belt and the end face of the outer ring body, thereby increasing the tension on the coiled material; then control the rotation of the friction ring belt through the control component to change the contact position between the friction ring belt and the end face of the outer ring body, which can reduce the wear between the friction ring belt and the end face of the outer ring body and reduce the possibility of slipping, which is beneficial to improving the reliability of the slip shaft system during operation; on the other hand, the entire belt surface of the friction ring belt can be evenly in contact with the end face of the outer ring body, which is beneficial to improving the utilization rate of the friction ring belt and helping to extend the service life of the friction ring belt, thereby reducing the replacement frequency of the friction ring belt and reducing the cost of use.

[0023] Furthermore, by setting a control component including a second air port and a plurality of second sliding frames, air is inflated through the second air port during use, so that the second sliding frame can synchronously drive the friction ring belt to slide along the radial direction of the inner ring seat, so as to drive the friction ring belt to move along the friction circuit through the friction contact between the end face of the friction ring belt and the outer ring body, thereby changing the contact position between the end face of the outer ring body and the friction ring belt, which is conducive to further reducing the wear of the end face of the outer ring body.

[0024] Furthermore, by setting an adjustable slip ring, it can have a first working state and a second working state according to the different tensions required by the coil, so that when in use, when the tension required by the coil is less than the preset tension, the adjustable slip ring is adjusted to the first working state, and inflated through the second air port, so that the second slide frame synchronously drives the friction ring belt to slide along the radial direction of the inner ring seat and in the axial direction away from the inner ring seat, and the distance the friction ring belt moves is positively correlated with the tension required by the coil, thereby not only changing the friction position between the friction ring belt and the end face of the outer ring body, but also increasing the torque of the friction force by increasing the friction force arm, which can not only provide the tension required by the coil, but also reduce the wear between the friction ring belt and the end face of the outer ring body; when the tension required by the coil is greater than the preset tension, the adjustable slip ring is adjusted to the second working state, and inflated through the first air port, so that the first slide frame synchronously drives the friction ring belt to move along the axial direction of the inner ring seat and in the direction close to the outer ring body, and the distance the friction ring belt moves is positively correlated with the tension required by the coil, thereby ensuring that the friction force can generate sufficient tension required by the coil. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of the three-dimensional structure of a slip shaft system provided by an embodiment of the present invention;

[0026] Figure 2 A schematic cross-sectional view of a slip shaft system provided in one embodiment of the present invention;

[0027] Figure 3 for Figure 2 A schematic diagram of the partially enlarged structure at center A;

[0028] Figure 4 A schematic diagram of the three-dimensional structure of a differential slip ring provided in one embodiment of the present invention;

[0029] Figure 5 A schematic diagram of the exploded parts of a differential ring provided in one embodiment of the present invention;

[0030] Figure 6 A schematic diagram of a three-dimensional cross-sectional structure of a differential slip ring provided in one embodiment of the present invention;

[0031] Figure 7 for Figure 6 A schematic diagram of the partially enlarged structure at B in the middle;

[0032] Figure 8 for Figure 6 A schematic diagram of the partially enlarged structure at C in the middle;

[0033] Fig. 9 A schematic diagram of the three-dimensional structure of an adjustment ring of a differential ring provided in an embodiment of the present invention.

[0034] in:

[0035] 1. differential ring; 11. inner ring seat; 111. first ring groove; 1111. first air port; 112. second ring groove; 113. third ring groove; 114. mounting groove; 12. ball bearing; 13. outer ring body; 14. support block; 15. first slide frame; 151. first piston column; 152. first slide groove; 153. slide hole; 16. friction ring belt; 161. mounting shaft; 17. control assembly; 171. second air port; 172. second slide frame; 1721. plug-in sliding part; 18. drive assembly; 181. third air port; 182. adjustment ring; 1821. second piston column; 1822. sink groove; 1823. fifth ring groove; 183. elastic ring strip; 184. wedge block; 1841. slide strip; 19. bearing;

[0036] 2. Shaft body; 201. Main gas path; 202. Branch gas path; 21. End cover. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0038] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned herein, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0039] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0040] like Figures 4 to 9As shown, an adjustable differential ring 1 provided by an embodiment of the present invention is configured to include an inner ring seat 11, an outer ring body 13, a control component 17 and a plurality of first slide frames 15, wherein a first air port 1111 is provided on the inner circumferential wall of the inner ring seat 11, and the first air port 1111 is configured to receive gas from the outside; the outer ring body 13 is sleeved on the inner ring seat 11 and can rotate relative to the inner ring seat 11, and the outer ring body 13 is used for winding the coiled material; a plurality of support blocks 14 are inserted on the outer circumferential wall of the outer ring body 13, and the plurality of support blocks 14 are arranged at intervals along the circumferential direction, and the plurality of support blocks 14 can synchronously slide along the radial direction of the inner ring seat 11 to support the roll of the coiled material; the plurality of first slide frames 15 are all inserted In the inner ring seat 11, and arranged at intervals along the circumferential direction; a friction belt 16 is inserted in each first slide frame 15, and the axis of the friction belt 16 is perpendicular to the axis of the inner ring seat 11, and the friction belt 16 forms a closed friction circuit in the first slide frame 15, and the belt surface is in friction contact with the end surface of the outer ring body 13; the first slide frame 15 and the first air port 1111 are connected, and when inflated, the first slide frame 15 can synchronously drive the friction belt 16 to slide along the axial direction of the inner ring seat 11 to change the friction force between the friction belt 16 and the end surface of the outer ring body 13; the control component 17 is configured to control the rotation of the friction belt 16 to change the contact position between the friction belt 16 and the end surface of the outer ring body 13.

[0041] Specifically in this embodiment, Figure 5 , Figure 6 and Figure 7 As shown, the inner ring seat 11 is configured as an inverted T-shaped rotating body structure, and the outer ring body 13 is configured as an annular structure. The outer ring body 13 is coaxially sleeved on the small end of the inner ring seat 11 during installation; a first annular groove 111 is coaxially opened on the inner circumferential wall of the inner ring seat 11, and the number of first air ports 1111 can be set to eight, and are opened on the first annular groove 111 at equal intervals along the circumferential direction. The first air ports 1111 are configured as an L-shaped structure and have vertically connected vertical and horizontal sections. The vertical section of the first air port 1111 extends along the radial direction of the inner ring seat 11, and the horizontal section of the first air port 1111 extends along the axial direction of the inner ring seat 11; the support block 14 is configured as a rectangular structure, and the number can be set to eight, and is inserted on the outer circumferential wall of the outer ring body 13 at equal intervals along the circumferential direction.

[0042] To facilitate installation of the first sliding frame 15, Figure 5 , Figure 6 and Figure 7As shown, a mounting groove 114 is provided on the right end face of the large end of the inner ring seat 11, and the mounting groove 114 is arranged as a rectangular parallelepiped structure, and the number can be eight, and they are arranged at equal intervals along the circumferential direction, and the right end of the horizontal section of the first air port 1111 is connected to the mounting groove 114; the first slide frame 15 is arranged as a box structure, and the number can be eight, and they are inserted into the mounting groove 114 one by one during installation; the friction ring belt 16 is arranged as an annular belt structure, and the number can be eight, and they are inserted into the first slide frame 15 one by one during installation, and are arranged away from the horizontal section of the first air port 1111; in order to facilitate the contact between the belt surface of the friction ring belt 16 and the end face of the outer ring body 13, the right side wall of the first slide frame 15 is opened, and the right end of the friction ring belt 16 exceeds the first slide frame 15.

[0043] In order to facilitate the gas entering from the first gas port 1111 to push the first sliding frame 15 to move, as shown in FIG. Figure 7 As shown, a first piston column 151 is vertically and fixedly arranged on the left outer side wall of the first sliding frame 15 , and the first piston column 151 is slidably inserted into the horizontal section of the first air port 1111 during installation.

[0044] When in use, firstly sleeve the roll of the coiled material on the adjustable differential slip ring 1, and then drive multiple support blocks 14 to slide synchronously along the radial outward of the inner ring seat 11, so that the support blocks 14 push against the inner circumferential wall of the roll to support the roll; then drive the inner ring seat 11 to rotate, and the inner ring seat 11 drives the roll to rotate differentially through the friction between the friction ring belt 16 and the outer ring body 13, so that the coiled material is gradually wound on the roll; as the number of winding layers of the coiled material gradually increases, the required tension gradually increases, and at the same time, it is inflated through the first air port 1111, and the gas pushes the first piston column 151 to synchronously drive the first slide frame 15 to slide along the axial direction of the inner ring seat 11 and in the direction close to the outer ring body 13, so that the friction ring belt 16 and the end face of the outer ring body 13 are The positive pressure increases, thereby increasing the friction between the friction ring belt 16 and the end face of the outer ring body 13, thereby increasing the tension on the coiled material; then the friction ring belt 16 is controlled to rotate by the control component 17 to change the contact position between the friction ring belt 16 and the end face of the outer ring body 13, so that on the one hand, the wear between the friction ring belt 16 and the end face of the outer ring body 13 can be reduced, the possibility of slipping can be reduced, and the reliability of the slip shaft system can be improved. On the other hand, the entire belt surface of the friction ring belt 16 can be evenly contacted with the end face of the outer ring body 13, which is beneficial to improve the utilization rate of the friction ring belt 16 and help to extend the service life of the friction ring belt 16, thereby reducing the replacement frequency of the friction ring belt 16 and reducing the cost of use.

[0045] In some embodiments, the control component 17 is configured to include a second air port 171 and a plurality of second slide frames 172. The second air port 171 is disposed on the inner circumferential wall of the inner ring seat 11 and is configured to receive gas from the outside. The second slide frame 172 is inserted between the first slide frame 15 and the friction ring belt 16 and can synchronously follow the movement of the first slide frame 15. The second slide frame 172 is connected to the second air port 171, and when inflated, the second slide frame 172 can synchronously drive the friction ring belt 16 to slide in the radial direction of the inner ring seat 11, so as to drive the friction ring belt 16 to rotate through the friction contact between the end face of the friction ring belt 16 and the outer ring body 13.

[0046] Specifically in this embodiment, Figure 6 and Figure 7 As shown, a second annular groove 112 is coaxially opened on the inner circumferential wall of the inner ring seat 11, and the second annular groove 112 is located on the right side of the first annular groove 111. The number of second air ports 171 can be set to eight, and they are opened on the second annular groove 112 at equal intervals along the circumferential direction. The second air ports 171 are set to an "I"-shaped structure, extend along the radial direction of the inner ring seat 11, and are connected to the first slide frame 15; the second slide frame 172 is set to a box structure, and the right side wall is open. The number of second slide frames 172 can be set to eight, and they are inserted into the first slide frame 15 one by one, and can slide axially synchronously with the first slide frame 15, and can slide radially relative to the first slide frame 15.

[0047] To facilitate the movement of the second sliding frame 172, Figure 7 As shown, a first slide groove 152 is provided on the left inner wall of the first slide frame 15 and at an upper position, and the first slide groove 152 extends along the radial direction of the inner ring seat 11, and a slide hole 153 is provided on the left inner wall of the first slide frame 15 and at a lower position, the top of the slide hole 153 is connected with the first slide groove 152, and the bottom end is connected with the second air port 171, and a plug-in sliding portion 1721 is provided on the left outer side wall of the second slide frame 172, and the plug-in sliding portion 1721 is set to an L-shaped structure, and has a horizontal section and a vertical section vertically connected, the horizontal section of the plug-in sliding portion 1721 extends along the axial direction of the inner ring seat 11, and is slidably inserted in the first slide groove 152, and the vertical section of the plug-in sliding portion 1721 extends along the radial direction of the inner ring seat 11, and is slidably inserted in the slide hole 153.

[0048] To facilitate installation of the friction belt 16 inside the second slide frame 172, as shown in FIG. Figure 7 As shown, the installation shaft 161 is vertically connected to the front and rear inner side walls of the second sliding frame 172, and the friction ring belt 16 is slidably sleeved on the installation shaft 161 during installation.

[0049] When in use, air is inflated through the second air inlet 171, and the gas pushes the plug-in sliding part 1721 to drive the second sliding frame 172 to slide along the radial direction of the inner ring seat 11; during the movement of the second sliding frame 172, the friction contact between the friction ring belt 16 and the end face of the outer ring body 13 enables the friction ring belt 16 to rotate around the mounting shaft 161, so as to change the belt surface of the friction ring belt 16 and the end face of the outer ring body 13 in contact, and change the contact position between the end face of the outer ring body 13 and the friction ring belt 16, which is conducive to further reducing the wear of the end face of the outer ring body 13.

[0050] In a further embodiment, the adjustable differential ring 1 is configured to have a first working state and a second working state according to different tensions required by the coil. When the tension required by the coil is less than the preset tension, the adjustable differential ring 1 is in the first working state, and is inflated through the second air port 171, so that the second slide frame 172 synchronously drives the friction ring belt 16 to slide along the radial direction of the inner ring seat 11 and in the axial direction away from the inner ring seat 11, and the moving distance of the friction ring belt 16 is positively correlated with the tension required by the coil; when the tension required by the coil is greater than the preset tension, the adjustable differential ring 1 is in the second working state, and is inflated through the first air port 1111, so that the first slide frame 15 synchronously drives the friction ring belt 16 to move along the axial direction of the inner ring seat 11 and in the direction close to the outer ring body 13, and the moving distance of the friction ring belt 16 is positively correlated with the tension required by the coil.

[0051] Specifically in this embodiment, when the second sliding frame 172 synchronously drives the friction ring belt 16 to slide along the radial direction of the inner ring seat 11 and in the axial direction away from the inner ring seat 11, the contact position between the friction ring belt 16 and the end face of the outer ring body 13 will move in the axial direction away from the inner ring seat 11. At this time, the force arm of the friction force of the friction ring belt 16 on the end face of the outer ring body 13 will increase, so that the torque generated by the friction force will increase, thereby being able to provide the tension required for the coil.

[0052] During use, when the tension required by the coil is less than the preset tension, the adjustable slip ring 1 is adjusted to the first working state, and air is inflated through the second air port 171, so that the second slide frame 172 synchronously drives the friction ring belt 16 to slide along the radial direction of the inner ring seat 11 and in the axial direction away from the inner ring seat 11, and the moving distance of the friction ring belt 16 is positively correlated with the tension required by the coil, thereby being able to change the friction position between the friction ring belt 16 and the end face of the outer ring body 13, and increasing the friction torque by increasing the friction arm, which can provide the required tension of the coil and avoid Increasing the tension by increasing the positive pressure between the friction ring belt 16 and the end surface of the outer ring body 13 helps to reduce the wear between the friction ring belt 16 and the end surface of the outer ring body 13; when the tension required by the coil is greater than the preset tension, the adjustable slip ring 1 is adjusted to the second working state, and inflated through the first air port 1111, so that the first slide frame 15 synchronously drives the friction ring belt 16 to move along the axial direction of the inner ring seat 11 and in the direction close to the outer ring body 13, and the moving distance of the friction ring belt 16 is positively correlated with the tension required by the coil, thereby ensuring that the friction force can generate sufficient tension required by the coil.

[0053] In some other embodiments, the adjustable differential ring 1 is configured to further include a driving assembly 18 , which is configured to provide a driving force for the multiple support blocks 14 to slide synchronously along the radial direction of the inner ring seat 11 .

[0054] When the reel is fixed, the driving assembly 18 provides a driving force for the multiple support blocks 14 to slide synchronously along the radial direction of the inner ring seat 11, so that the support blocks 14 are pushed against the inner peripheral wall of the reel to support the reel.

[0055] In a further embodiment, the drive assembly 18 is configured to include a third gas port 181, an adjustment ring 182, an elastic member and a plurality of wedge blocks 184. The third gas port 181 is arranged on the inner peripheral wall of the inner ring seat 11 and is configured to receive gas from the outside. The adjustment ring 182 is coaxially inserted in the outer ring body 13 and can slide along the axial direction of the outer ring body 13. The elastic member is connected between the support block 14 and the outer ring body 13. Under the action of the elastic member, the support block 14 has a radial direction along the outer ring body 13. The wedge blocks 184 have a tendency to move inward and inward; multiple wedge blocks 184 are inserted into the outer ring body 13, and are arranged one by one with the support blocks 14, the wedge surfaces of the wedge blocks 184 face the corresponding support blocks 14, and form a guiding fit with the support blocks 14, and the wedge blocks 184 and the adjustment ring 182 form a stop fit; the adjustment ring 182 is connected to the third air port 181, and when inflated, the adjustment ring 182 can synchronously drive the support blocks 14 to slide outward along the radial direction of the inner ring seat 11 through the wedge blocks 184.

[0056] Specifically in this embodiment, Figure 5 , Figure 6 and Figure 8 As shown, a third annular groove 113 is coaxially provided on the inner circumferential wall of the inner ring seat 11, and the third annular groove 113 is located on the right side of the second annular groove 112. The number of third gas ports 181 can be eight, and they are provided on the third annular groove 113 at equal intervals along the circumferential direction. The third gas ports 181 are provided as an L-shaped structure, and have a horizontal section and a vertical section vertically connected. The vertical section of the third gas port 181 extends along the radial direction of the inner ring seat 11, and the horizontal section of the third gas port 181 extends along the axial direction of the inner ring seat 11; as shown Fig. 9 As shown, an annular recessed groove 1822 is coaxially arranged on the inner side of the bottom end surface of the adjusting ring 182, and the second piston column 1821 is vertically arranged on the top end surface of the recessed groove 1822 during installation. There can be eight second piston columns 1821, which are evenly arranged along the circumferential direction. To facilitate the gas entering from the third gas port 181 to push the adjusting ring 182 to move, the second piston columns 1821 are one-to-one correspondingly and slidably inserted into the horizontal section of the third gas port 181 during installation.

[0057] like Figure 8 As shown, the vertical cross-section of the wedge block 184 is set to a right-angled trapezoid, and the short base and the long base of the right-angled trapezoid both extend in the radial direction of the inner ring seat 11, the oblique waist is located below the right-angled waist, and the oblique waist is inclined and extended in the upper right direction, and the bottom surface where the oblique waist is located is the wedge surface; the top surface of the support block 14 is set to an inclined surface, and extends in the upper right direction; in order to facilitate improving the stability of the wedge block 184 and the support block 14 during relative movement, a slide bar 1841 is provided on the wedge surface of the wedge block 184, and the slide bar 1841 extends in a direction parallel to the oblique waist, and a second slide groove is provided on the top surface of the support block 14, and the second slide groove extends in a direction parallel to the oblique waist, and the slide bar 1841 is slidably inserted in the second slide groove when in use.

[0058] When fixing the reel, air is inflated through the third air port 181, and under the push of the gas, the second piston column 1821 synchronously drives the wedge block 184 to move along the axial direction of the outer ring body 13 and in the direction away from the inner ring seat 11; during the movement of the wedge block 184, the wedge block 184 drives the support block 14 to slide outward along the radial direction of the inner ring seat 11 through the wedge surface, so as to push against the inner circumferential wall of the reel.

[0059] In a further embodiment, the elastic member is configured to include an elastic ring strip 183, which is simultaneously sleeved on the outside of the outer ring body 13 and all the support blocks 14 and has a tendency to shrink.

[0060] Specifically in this embodiment, in order to make the elastic ring strip 183 have a certain position, such as Figure 6As shown, a fourth annular groove is coaxially arranged on the outer peripheral wall of the outer ring body 13, and a first arc groove overlapping with the fourth annular groove is opened on the outer end surface of the support block 14. The elastic ring strip 183 is inserted into the fourth annular groove and the first arc groove at the same time during installation.

[0061] In other embodiments, in order to improve the stability of the inner ring seat 11 and the outer ring body 13 during relative rotation, the adjustable differential ring 1 is configured to also include three bearings 19, two of which are inserted between the outer ring body 13 and the inner ring seat 11, and are arranged at intervals along the axial direction of the inner ring seat 11; the other bearing 19 is inserted between the adjusting ring 182 and all the wedge blocks 184.

[0062] Specifically in this embodiment, in order to facilitate the transmission of the movement of the adjustment ring 182 to the wedge block 184, as shown in FIG. Figure 8 and Fig. 9 As shown, a fifth annular groove 1823 is coaxially arranged on the outer peripheral wall of the adjusting ring 182, and a second arc groove is opened on the end face where the right-angle waist of the wedge block 184 is located. The bearing 19 is inserted into the fifth annular groove 1823 and the second arc groove at the same time during installation, so that the adjusting ring 182 can synchronously drive the wedge block 184 to move axially through the bearing 19.

[0063] In other embodiments, in order to further improve the transmission stability between the friction ring belt 16 and the end surface of the outer ring body 13, the shape of the friction ring belt 16 is set to be a rounded rectangle.

[0064] Specifically in this embodiment, in order to facilitate the installation of the friction belt 16, as shown in FIG. Figure 7 As shown, the shape of the mounting shaft 161 is also correspondingly set to be a rounded rectangle.

[0065] When in use, the rounded rectangular shape allows the friction ring belt 16 to be in surface contact with the end surface of the outer ring body 13 , and the contact area is large, thereby improving the transmission stability between the friction ring belt 16 and the end surface of the outer ring body 13 .

[0066] In other embodiments, in order to improve the convenience of sleeve-mounting the reel on the adjustable differential ring 1 and removing the reel from the adjustable differential ring 1, a plurality of balls 12 are inserted into the outer peripheral wall of the inner ring seat 11. The plurality of balls 12 are arranged at intervals along the circumferential direction and can all roll freely.

[0067] Specifically in this embodiment, Figure 4 and Figure 5 As shown, the number of the balls 12 can be eight, and the eight balls 12 are inserted on the outer peripheral wall of the inner ring seat 11 at equal intervals along the circumferential direction during installation.

[0068] When in use, there is rolling friction between the reel and the ball 12, so that pushing or removing the reel is relatively labor-saving.

[0069] like Figures 1 to 3 As shown, another embodiment of the present invention provides a differential shaft system, which is configured to include a shaft body 2 and a plurality of adjustable differential rings 1 sleeved on the shaft body 2 .

[0070] Specifically in this embodiment, Figure 1 and Figure 2 As shown, the shaft body 2 is configured as a T-shaped rotating body structure, and in order to prevent the differential ring 1 from falling off during rotation, an end cover 21 is detachably provided at the small end of the shaft body 2 .

[0071] More specifically, in order to facilitate the introduction of gas into the first gas port 1111, the second gas port 171 and the third gas port 181, as shown in FIG. Figure 1 , Figure 2 and Figure 3 As shown, three main gas paths 201 are evenly arranged along the circumferential direction on the large end face of the shaft body 2. The main gas path 201 is configured as a trough-like structure and is arranged parallel to the axis of the shaft body 2. Each main gas path 201 is provided with branch gas paths 202 whose number is equal to the number of slip rings 1. Multiple branch gas paths 202 are evenly arranged along the axial direction of the shaft body 2. The branch gas paths 202 extend along the radial direction of the shaft body 2, and the branch gas paths 202 of the three main gas paths 201 are connected to the first gas port 1111, the second gas port 171, and the third gas port 181 one by one.

[0072] It is understandable that the gases in the three main gas circuits 201 can be provided separately by three sub-gas pumps, or can be provided simultaneously by one main gas pump, and a solenoid valve is provided at the air inlet of each main gas circuit 201 to achieve individual control.

[0073] In combination with the above embodiments, the use principle and working process of the embodiments of the present invention are as follows:

[0074] When in use, firstly sleeve the reel of the coiled material onto the slip shaft system, then start the air distribution pump corresponding to the third air port 181, the gas first enters into the shaft body 2 through the main air path 201 corresponding to the third air port 181, and then enters into the outer ring body 13 through the branch air path 202 and the third air port 181 in turn, and under the push of the gas, the second piston column 1821 synchronously drives the wedge block 184 to move along the axial direction of the outer ring body 13 and away from the inner ring seat 11, and the elastic ring strip 183 expands and accumulates force; in the process of the movement of the wedge block 184, the wedge block 184 drives the support block 14 to slide outward along the radial direction of the inner ring seat 11 through the wedge surface, so as to push against the inner circumferential wall of the reel.

[0075] Then the shaft body 2 is driven to rotate, and the shaft body 2 drives the inner ring seat 11 to rotate at the same speed. The inner ring seat 11 drives the reel to rotate at a differential speed through the friction between the friction ring belt 16 and the outer ring body 13, so that the coil is gradually wound on the reel.

[0076] As the shaft body 2 rotates, the number of winding layers of the coil gradually increases, and the required tension gradually increases. When the required tension of the coil is less than the preset tension, the adjustable slip ring 1 is adjusted to be in the first working state: first, the air distribution pump corresponding to the second air port 171 is started, and the gas first enters the shaft body 2 through the main air path 201 corresponding to the second air port 171, and then enters the inner ring seat 11 through the branch air path 202 and the second air port 171 in turn. The gas pushes the plug-in sliding part 1721 to drive the second slide frame 172 to slide outward along the radial direction of the inner ring seat 11; during the movement of the second slide frame 172, the friction contact between the friction ring belt 16 and the end face of the outer ring body 13 enables the friction ring belt 16 to rotate around the mounting shaft 161, so as to change the belt surface contacting the end face of the friction ring belt 16 and the outer ring body 13, and also change the contact position between the end face of the outer ring body 13 and the friction ring belt 16.

[0077] When the tension required by the coil is greater than the preset tension, the adjustable slip ring 1 is adjusted to be in the second working state: first, the air distribution pump corresponding to the first air port 1111 is started, and the gas first enters the shaft body 2 through the main air path 201 corresponding to the first air port 1111, and then enters the inner ring seat 11 through the branch air path 202 and the first air port 1111 in turn. The gas pushes the first piston column 151 and synchronously drives the first slide frame 15 to slide along the axial direction of the inner ring seat 11 and in the direction close to the outer ring body 13. The first slide frame 15 synchronously drives the second slide frame 172 and the friction ring belt 16 to move axially synchronously, so that the positive pressure between the friction ring belt 16 and the end face of the outer ring body 13 increases, thereby increasing the friction force between the friction ring belt 16 and the end face of the outer ring body 13, thereby increasing the tension on the coil.

[0078] After winding is completed, the air pump corresponding to the third air port 181 is closed, and the support block 14 moves inward along the radial direction of the outer ring body 13 under the contraction action of the elastic ring strip 183, and then the reel is removed from the slip shaft system to start winding the next coil.

[0079] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0080] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. An adjustable differential slip ring, characterized in that: The adjustable differential slip ring comprises: An inner ring seat, wherein a first gas port is disposed on an inner peripheral wall of the inner ring seat, and the first gas port is configured to receive gas from the outside; An outer ring body, the outer ring body is sleeved on the inner ring seat and can rotate relative to the inner ring seat, and the outer ring body is used to roll up the coiled material; a plurality of support blocks are inserted on the outer peripheral wall of the outer ring body, the plurality of support blocks are arranged at intervals along the circumferential direction, and the plurality of support blocks can synchronously slide along the radial direction of the inner ring seat to support the roll of the coiled material; A plurality of first slide frames, wherein the plurality of first slide frames are all inserted into the inner ring seat and arranged at intervals along the circumferential direction; a friction ring belt is inserted into each of the first slide frames, the axis of the friction ring belt is perpendicularly arranged to the axis of the inner ring seat, the friction ring belt forms a closed friction loop in the first slide frame, and the belt surface is in friction contact with the end surface of the outer ring body; the first slide frame is connected to the first air port, and when inflated, the first slide frame can synchronously drive the friction ring belt to slide along the axial direction of the inner ring seat to change the friction force between the friction ring belt and the end surface of the outer ring body; A control component, wherein the control component is configured to control the rotation of the friction ring belt to change the contact position between the friction ring belt and the end surface of the outer ring body; The control component includes a second air port and a plurality of second sliding frames, the second air port is arranged on the inner circumferential wall of the inner ring seat and is configured to receive gas from the outside; the second sliding frame is inserted between the first sliding frame and the friction ring belt, and can synchronously follow the movement of the first sliding frame, the second sliding frame is connected to the second air port, and when inflated, the second sliding frame can synchronously drive the friction ring belt to slide along the radial direction of the inner ring seat, so as to drive the friction ring belt to move along the friction circuit through the friction contact between the friction ring belt and the end face of the outer ring body.

2. The adjustable differential slip ring according to claim 1, characterized in that: The adjustable differential ring is configured to have a first working state and a second working state according to different tensions required by the coil. When the tension required by the coil is less than the preset tension, the adjustable differential ring is in the first working state, and is inflated through the second air port, so that the second slide frame synchronously drives the friction ring belt to slide along the radial direction of the inner ring seat and in the axial direction away from the inner ring seat, and the distance moved by the friction ring belt is positively correlated with the tension required by the coil; when the tension required by the coil is greater than the preset tension, the adjustable differential ring is in the second working state, and is inflated through the first air port, so that the first slide frame synchronously drives the friction ring belt to move along the axial direction of the inner ring seat and in the direction close to the outer ring body, and the distance moved by the friction ring belt is positively correlated with the tension required by the coil.

3. The adjustable differential slip ring according to claim 1, characterized in that: The adjustable differential ring further includes a driving assembly configured to provide a driving force for the plurality of support blocks to synchronously slide along the radial direction of the inner ring seat.

4. The adjustable differential slip ring according to claim 3, characterized in that: The driving assembly includes a third air port, an adjustment ring, an elastic member and a plurality of wedge blocks, wherein the third air port is arranged on the inner circumferential wall of the inner ring seat and is configured to receive gas from the outside; the adjustment ring is coaxially inserted in the outer ring body and can slide along the axial direction of the outer ring body; the elastic member is connected between the support block and the outer ring body, and under the action of the elastic member, the support block has a tendency to move inward along the radial direction of the outer ring body; the plurality of wedge blocks are all inserted in the outer ring body and are arranged one by one with the support blocks, the wedge surfaces of the wedge blocks face the corresponding support blocks, and form a guiding fit with the support blocks, and the wedge blocks and the adjustment ring form a stop fit; the adjustment ring is connected to the third air port, and when inflated, the adjustment ring can synchronously drive the support block to slide outward along the radial direction of the inner ring seat through the wedge block.

5. The adjustable differential slip ring according to claim 4, characterized in that: The elastic member comprises an elastic ring strip, which is sleeved on the outside of the outer ring body and all the supporting blocks at the same time and has a tendency to shrink.

6. The adjustable differential slip ring according to claim 4, characterized in that: The adjustable differential slip ring also includes three bearings, two of which are inserted between the outer ring body and the inner ring seat and arranged at intervals along the axial direction of the inner ring seat; and the other bearing is inserted between the adjustment ring and all the wedge blocks.

7. The adjustable differential slip ring according to claim 1, characterized in that: The shape of the friction ring belt is set to be a rounded rectangle.

8. The adjustable differential slip ring according to claim 1, characterized in that: A plurality of balls are inserted on the outer peripheral wall of the inner ring seat. The plurality of balls are arranged at intervals along the circumferential direction and can roll freely.

9. A slip shaft system, characterized in that: The differential slip shaft system comprises a shaft body and a plurality of adjustable differential slip rings as claimed in any one of claims 1 to 8 which are sleeved on the shaft body.

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