Cylinder type speed regulation magnetic coupler

Abstract

The utility model discloses a cylindrical speed-regulating magnetic coupler, which comprises a support, a bearing gland arranged on one side of the support, a speed-regulating component arranged on the other side of the support, an operating handle arranged at the bottom of the speed-regulating component, a bearing end cover arranged on one side of the speed-regulating component, an output component arranged on one side of the bearing end cover, and an output shaft arranged on the other side of the output component. The input assembly is arranged on one side of the output assembly; the first engineering plastic shaft sleeve is used as a matching part of the permanent magnet mounting disc, then the second engineering plastic shaft sleeve is added, and the characteristics of high firmness, low friction coefficient, lubrication-free property, maintenance-free property and the like are utilized, so that the problems caused by materials and matching sizes are reduced, and the later maintenance workload is reduced; meanwhile, the antifriction ring, the first engineering plastic shaft sleeve and the second engineering plastic shaft sleeve form double supporting points, the speed regulation overhanging ratio is shortened, a complex gear and rack structure is replaced by the device, the axial size is shortened, and the vibration problem caused by the overhanging ratio is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of coupler, concretely to a cylinder type speed regulating type magnetic coupler. BACKGROUND

[0002] The structure form of magnetic coupler mainly has cylinder type and disc type, the cylinder type structure is through adjusting the relative position of permanent magnet rotor and magnet conducting rotor in the axial direction to change the coupling area between both, thereby adjusting the torque and rotating speed of transmission, the disc type structure is through adjusting the air gap of permanent magnet rotor and magnet conducting rotor in the axial direction, thereby adjusting the output rotating speed and torque of load machine, these two technologies have the characteristics such as smooth stepless speed regulation, high efficiency energy saving, simple and reliable mechanical structure.

[0003] The existing magnetic coupler has the following shortcomings:

[0004] The axial dimension of disc type coupler is relatively long, the permanent magnet rotor moves axially during speed regulation, the overhanging ratio is long, leading to large vibration, the axial centering requirement is high during field installation, the axial force is large when the deviation is big, it is difficult to balance, and it can cause damage to the system bearing, the structure is relatively complex, especially the gear and rack mechanism needs lubrication, and it can cause mechanism blockage in the environment with more dust and gravel, and it belongs to the vulnerable part, the disc type structure generates large noise during operation due to heat dissipation problems.

[0005] And the cylinder type structure, the utilization rate of permanent magnet of single cylinder structure is low, the permanent magnet volume is large, the moment of inertia is large, the power consumption is large, the equipment vibration increases, and the system is greatly affected, the reliability of high-speed equipment is poor, the permanent magnet cylinder of non-supporting double cylinder structure is installed on the load machine shaft, due to the long cantilever and heavy weight, long-term operation can cause stretching and deformation of internal parts of the load machine, leading to fatigue damage of parts, especially the damage of bearings and sealing elements, and vibration and noise are also increased, the double connecting rod mechanism is adopted for speed regulation in the double cylinder structure, and the mechanism maintenance is complex, and the manufacturing cost is high. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a cylinder type speed regulating type magnetic coupler to solve the problems in the above background technology.

[0007] In order to achieve the above object, the utility model provides the following technical scheme: a cylinder type speed regulating type magnetic coupler, including the support, one side of the support is equipped with the bearing gland, the other side of the support is equipped with the speed regulating assembly, the bottom of the speed regulating assembly is equipped with the operating handle, one side of the speed regulating assembly is equipped with the bearing end cover, one side of the bearing end cover is equipped with the output assembly, one side of the output assembly is equipped with the input assembly.

[0008] Preferably, the input assembly comprises an input end coupling, a magnet conductor mounting disc, a heat sink, a first heat sink, an outer magnet conductor mounting cylinder, an outer magnet conductor, a second heat sink, an inner magnet conductor mounting cylinder and an inner magnet conductor, the magnet conductor mounting disc is located on one side of the output assembly, one side of the magnet conductor mounting disc is provided with an input end coupling, the middle of the side of the magnet conductor mounting disc away from the input end coupling is provided with an inner magnet conductor mounting cylinder, the inner side of the inner magnet conductor mounting cylinder is provided with a second heat sink, the outer side of the inner magnet conductor mounting cylinder is provided with an inner magnet conductor, a non-circular position on one side of the magnet conductor mounting disc is provided with an outer magnet conductor mounting cylinder, the inner side of the outer magnet conductor mounting cylinder is provided with an outer magnet conductor, the outer side of the outer magnet conductor mounting cylinder is provided with a first heat sink, the top and bottom of one side of the magnet conductor mounting disc are symmetrically provided with heat sinks, which ensures the normal operation of the magnetic coupling and avoids high temperature radiation causing demagnetization of the permanent magnet.

[0009] Preferably, the output assembly comprises a connecting body, a first engineering plastic shaft sleeve, a pin shaft, a magnet cover, a permanent magnet, a permanent magnet mounting disc, a speed regulating disc, a bearing seat, a second engineering plastic shaft sleeve and an output shaft, the output shaft is located inside the support, one side of the outer side of the output shaft is provided with a speed regulating disc, one side of the speed regulating disc is provided with a permanent magnet mounting disc, the inside of the permanent magnet mounting disc is provided with a plurality of permanent magnets, one side of the permanent magnet mounting disc is provided with a magnet cover, one side of the output shaft is provided with a connecting body, the bottom of one side of the connecting body is provided with a pin shaft, the outer side of the pin shaft is provided with a first engineering plastic shaft sleeve, one side of the speed regulating disc is provided with a bearing seat, and the bearing seat is located on the outer side of the output shaft, the outer side of the bearing seat is provided with a second engineering plastic shaft sleeve, which effectively reduces the size of vibration under high speed operation.

[0010] Preferably, the bearing end cover comprises a speed regulating outer sleeve, a cam bearing seat, an antifriction ring and a speed regulating inner sleeve, the speed regulating inner sleeve is located on the outer side of the output assembly, the outer side of the speed regulating inner sleeve is provided with a speed regulating outer sleeve, one side of the inside of the speed regulating outer sleeve is provided with an antifriction ring, one side of the outer side of the speed regulating inner sleeve is provided with an antifriction ring, which adjusts the output speed and torque of the load machine.

[0011] Preferably, there is an air gap between the inner magnet conductor and the outer magnet conductor and the permanent magnet mounting disc, which facilitates speed regulation.

[0012] Preferably, a needle bearing is fixed in the cam bearing seat, and the outer side of the antifriction ring is provided with a spiral groove, and the needle bearing fixed in the cam bearing seat rotates in the spiral groove of the antifriction ring.

[0013] Preferably, the permanent magnets are arranged in a circumferential direction of the permanent magnet mounting disc according to the N and S poles, which facilitates work.

[0014] Preferably, the output shaft middle part and output part are provided with support bearings, and the middle part of the output shaft is provided with a sealing disc, so that the bearings are prevented from moving axially.

[0015] Compared with the prior art, the beneficial effects of the utility model are that the cylinder type speed regulating magnetic coupling has the following beneficial effects:

[0016] By using the first engineering plastic shaft sleeve in cooperation with the component of the permanent magnet mounting disc, then by increasing the second engineering plastic shaft sleeve, the characteristics of high firmness, low self-friction coefficient, lubrication-free and maintenance-free are utilized, the problems caused by the material and cooperation size are reduced, the workload of later maintenance is reduced, the double support points composed of the first engineering plastic shaft sleeve and the second engineering plastic shaft sleeve reduce the speed regulating overhang ratio, the complicated gear and rack structure is replaced by the device, the axial size is shortened, the vibration problem caused by the overhang ratio is solved, the second engineering plastic shaft sleeve effectively reduces the vibration under high speed rotation, the load machine shaft suspension assembly is prevented from causing the stretching and deformation of the internal parts, fatigue damage, especially the damage of the bearing and the sealing element, and the vibration and noise are reduced, then the friction resistance and speed regulating torque of the speed regulating assembly are reduced by increasing the friction reducing ring. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the front view of the utility model;

[0018] Figure 2 It is the structure schematic view of the input assembly of the utility model;

[0019] Figure 3 It is the structure schematic view of the input assembly of the utility model;

[0020] Figure 4 It is the structure schematic view of the bearing end cover of the utility model.

[0021] In the drawing: 1, input assembly; 101, input end shaft coupling; 102, magnet mounting disc; 103, heat sink; 104, first heat sink fin; 105, outer magnet mounting cylinder; 106, outer magnet; 107, second heat sink fin; 108, inner magnet mounting cylinder; 109, inner magnet; 2, output assembly; 201, connecting body; 202, first engineering plastic shaft sleeve; 203, pin shaft; 204, magnet cover; 205, permanent magnet; 206, permanent magnet mounting disc; 207, speed regulating disc; 208, bearing seat; 209, second engineering plastic shaft sleeve; 210, output shaft; 211, sealing disc; 3, speed regulating assembly; 301, speed regulating outer sleeve; 302, cam bearing seat; 303, friction reducing ring; 304, speed regulating inner sleeve; 4, bearing end cover; 5, support; 6, bearing gland; 7, operating handle. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] Please refer to Figures 1-4 The utility model provides an embodiment: a cylinder type speed regulation type magnetic coupling, including support 5, one side of support 5 is equipped with bearing gland 6, the other side of support 5 is equipped with speed regulation subassembly 3, the bottom of speed regulation subassembly 3 is equipped with handle 7, one side of speed regulation subassembly 3 is equipped with bearing end cover 4, one side of bearing end cover 4 is equipped with output assembly 2, one side of output assembly 2 is equipped with input assembly 1;

[0024] Input assembly 1 includes input end shaft coupling 101, magnetism guide body installation disc 102, heat dissipation cover 103, first heat dissipation fin 104, outer magnetism guide body installation cylinder 105, outer magnetism guide body 106, second heat dissipation fin 107, inner magnetism guide body installation cylinder 108 and inner magnetism guide body 109, magnetism guide body installation disc 102 is located one side of output assembly 2, one side of magnetism guide body installation disc 102 is equipped with input end shaft coupling 101, the middle of the side away from input end shaft coupling 101 of magnetism guide body installation disc 102 is equipped with inner magnetism guide body installation cylinder 108, the inner side of inner magnetism guide body installation cylinder 108 is equipped with second heat dissipation fin 107, the outer side of inner magnetism guide body installation cylinder 108 is equipped with inner magnetism guide body 109, the non-circular center position of one side of magnetism guide body installation disc 102 is equipped with outer magnetism guide body installation cylinder 105, the inner side of outer magnetism guide body installation cylinder 105 is equipped with outer magnetism guide body 106, the outer side of outer magnetism guide body installation cylinder 105 is equipped with first heat dissipation fin 104, the top and bottom of one side of magnetism guide body installation disc 102 are symmetrically equipped with heat dissipation cover 103;

[0025] The output assembly 2 comprises a connecting body 201, a first engineering plastic shaft sleeve 202, a pin shaft 203, a magnet cover 204, a permanent magnet 205, a permanent magnet mounting disc 206, a speed regulating disc 207, a bearing seat 208, a second engineering plastic shaft sleeve 209 and an output shaft 210. The output shaft 210 is located inside the support 5. The speed regulating disc 207 is arranged on one side of the output shaft 210. The permanent magnet mounting disc 206 is arranged on one side of the speed regulating disc 207. The permanent magnets 205 are arranged in a cross pattern in the circumferential direction of the permanent magnet mounting disc 206 according to N and S poles. The permanent magnets 205 facilitate the air gap between the working inner magnet 109 and the outer magnet 106 and the permanent magnet mounting disc 206, and facilitate speed regulation. The permanent magnet mounting disc 206 is internally provided with a plurality of permanent magnets 205. The magnet cover 204 is arranged on one side of the permanent magnet mounting disc 206. The connecting body 201 is arranged on one side of the output shaft 210. The pin shaft 203 is arranged at the bottom of one side of the connecting body 201. The first engineering plastic shaft sleeve 202 is arranged on the outer side of the pin shaft 203. The bearing seat 208 is arranged on one side of the speed regulating disc 207 and located on the outer side of the output shaft 210. The second engineering plastic shaft sleeve 209 is arranged on the outer side of the bearing seat 208. The support bearings are mounted on the output shaft 210. The sealing disc 211 is arranged on the outer side of the output shaft 210. The sealing disc 211 prevents the bearing from moving axially.

[0026] The bearing end cover 4 comprises a speed regulating outer sleeve 301, a cam bearing seat 302, an antifriction ring 303 and a speed regulating inner sleeve 304. The speed regulating inner sleeve 304 is located on the outer side of the output assembly 2. The speed regulating outer sleeve 301 is arranged on the outer side of the speed regulating inner sleeve 304. The antifriction ring 303 is arranged on one side of the speed regulating inner sleeve 304. The needle bearing is fixedly arranged in the cam bearing seat 302. The antifriction ring 303 is provided with a helical groove on the outer side. The needle bearing fixedly arranged in the cam bearing seat 302 rotates in the helical groove of the antifriction ring 303. The antifriction ring 303 is arranged on one side of the outer side of the speed regulating inner sleeve 304. The speed regulating inner sleeve 304 adjusts the output rotating speed and torque of the load machine.

[0027] Working principle: Since the output assembly 2 is located inside the support 5, the assembly is not installed on the load shaft, and the weight of the assembly does not cause the load machine internal components to be stretched and deformed, thereby causing fatigue damage to the components, especially the bearings and seals.

[0028] Since the inner magnet 109 and the outer magnet 106 generate a large amount of heat when cutting the magnetic force lines, and the speed regulation loss power is converted into heat energy, the heat dissipation structure composed of the heat dissipation cover 103, the first heat dissipation fin 104 and the second heat dissipation fin 107 is used to dissipate heat from the inner magnet 109 and the outer magnet 106, so as to ensure the normal operation of the magnetic coupling and avoid high-temperature radiation causing the permanent magnet 205 to lose magnetism.

[0029] The permanent magnet 205 is fixed in the permanent magnet mounting disc 206, and the surface-mounted magnet cover 204 is mounted, so that the magnetic lines of the permanent magnet 205 form a closed loop, the power loss caused by the magnetic leakage phenomenon is prevented, and the axial suction force is reduced;

[0030] The installed pin shaft 203 can move axially on the connecting body 201 fixed to the output shaft 210, the pin shaft 203 is a core component for transmitting torque and guiding and positioning the permanent magnet mounting disc 206, and the first engineering plastic shaft sleeve 202 is used in cooperation, so that the problems caused by the material and the cooperation size can be effectively reduced by using the characteristics of high firmness, low self-friction coefficient, lubrication-free and maintenance-free of the first engineering plastic shaft sleeve 202;

[0031] The friction-reducing ring 303 installed in the speed regulating outer sleeve 301 can effectively reduce the frictional resistance between the speed regulating inner sleeve 304 and the speed regulating outer sleeve 301 by using the characteristic of low self-friction coefficient, and the friction-reducing ring 303, the bearing seat 208 and the second engineering plastic shaft sleeve 209 form double support points, so that the overhanging ratio is shortened, the speed regulating outer sleeve 301 drives the speed regulating disc 207 through the bearing seat 208, the speed regulating disc 207 drives the permanent magnet mounting disc 206 to run linearly, the coupling area between the input assembly 1 and the output assembly 2 is adjusted, and then the output speed and torque of the load machine are adjusted.

[0032] It is obvious for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the involved claims.

[0033] In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0034] In the description of the utility model, it is to explain, unless another explicit provision and limit, term "link", "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, can be mechanical connection, also can be electric connection, can be directly connected, also can pass through indirect connection of intermediate medium. For ordinary skilled person in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

Claims

1. A cylindrical speed-regulating magnetic coupler, comprising a support (5), characterized in that: The support (5) has a bearing cover (6) on one side and a speed regulating component (3) on the other side. The speed regulating component (3) has an operating handle (7) at the bottom. The speed regulating component (3) has a bearing end cover (4) on one side and an output component (2) on one side. The output component (2) has an input component (1) on one side.

2. The cylindrical speed-regulating magnetic coupler according to claim 1, characterized in that: The input component (1) includes an input coupling (101), a magnet mounting plate (102), a heat sink (103), a first heat sink (104), an outer magnet mounting cylinder (105), an outer magnet (106), a second heat sink (107), an inner magnet mounting cylinder (108), and an inner magnet (109). The magnet mounting plate (102) is located on one side of the output component (2). The input coupling (101) is provided on one side of the magnet mounting plate (102). The magnet mounting plate (102) has a middle section on the side away from the input coupling (101). An inner magnetic conductor mounting cylinder (108) is provided with a second heat sink (107) on its inner side and an inner magnetic conductor (109) on its outer side. An outer magnetic conductor mounting cylinder (105) is provided at a non-center position on one side of the magnetic conductor mounting plate (102). An outer magnetic conductor (106) is provided on the inner side of the outer magnetic conductor mounting cylinder (105) and a first heat sink (104) is provided on the outer side of the outer magnetic conductor mounting cylinder (105). A heat sink cover (103) is symmetrically provided at the top and bottom of one side of the magnetic conductor mounting plate (102).

3. A cylindrical speed-regulating magnetic coupler according to claim 2, characterized in that: The output assembly (2) includes a connector (201), a first engineering plastic bushing (202), a pin (203), a magnet cover (204), a permanent magnet (205), a permanent magnet mounting plate (206), a speed regulating plate (207), a bearing seat (208), a second engineering plastic bushing (209), and an output shaft (210). The output shaft (210) is located inside the support (5). A speed regulating plate (207) is provided on one side of the output shaft (210), and a permanent magnet mounting plate (206) is provided on one side of the speed regulating plate (207). 06) Multiple sets of permanent magnets (205) are provided inside. A magnet cover (204) is provided on one side of the permanent magnet mounting plate (206). A connector (201) is provided on one side of the output shaft (210). A pin (203) is provided at the bottom of one side of the connector (201). A first engineering plastic bushing (202) is provided on the outside of the pin (203). A bearing seat (208) is provided on one side of the speed regulating plate (207), and the bearing seat (208) is located on the outside of the output shaft (210). A second engineering plastic bushing (209) is provided on the outside of the bearing seat (208).

4. A cylindrical speed-regulating magnetic coupler according to claim 1, characterized in that: The bearing end cover (4) includes a speed regulating outer sleeve (301), a cam bearing seat (302), a friction reducing ring (303), and a speed regulating inner sleeve (304). The speed regulating inner sleeve (304) is located outside the output component (2). The speed regulating outer sleeve (301) is provided on the outside of the speed regulating inner sleeve (304). A friction reducing ring (303) is provided on one side inside the speed regulating outer sleeve (301). A friction reducing ring (303) is provided on one side outside the speed regulating inner sleeve (304).

5. A cylindrical speed-regulating magnetic coupler according to claim 3, characterized in that: There is an air gap between the inner magnetic conductor (109) and the outer magnetic conductor (106) and the permanent magnet mounting plate (206).

6. A cylindrical speed-regulating magnetic coupler according to claim 4, characterized in that: A needle roller bearing is fixed inside the cam bearing housing (302), and a spiral groove is provided on the outer side of the friction-reducing ring (303).

7. A cylindrical speed-regulating magnetic coupler according to claim 3, characterized in that: The permanent magnets (205) are arranged in a crisscross pattern on the circumference of the permanent magnet mounting plate (206) with their N and S poles intersecting.

8. A cylindrical speed-regulating magnetic coupler according to claim 3, characterized in that: Both the middle part and the output part of the output shaft (210) are equipped with support bearings, and a sealing disc (211) is provided in the middle of the outer side of the output shaft (210).

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