CN219164415U - Reciprocating magnetic suspension linear motor and electric shearing device - Google Patents

Abstract

The embodiment of the application discloses a reciprocating magnetic suspension linear motor and an electric shearing device, wherein the reciprocating magnetic suspension linear motor comprises a bracket, two groups of elastic support modules, a driving assembly and a motion assembly suspended above the driving assembly, wherein the driving assembly is arranged on the bracket so as to drive the motion assembly to reciprocate along a preset direction through electromagnetic action; two ends of the motion assembly along the preset direction are respectively connected with the bracket through a group of elastic support modules; the elastic support module comprises a plate spring elastic sheet, a switching assembly and a first connecting piece, wherein the plate spring elastic sheet is provided with a first connecting end and a second connecting end, the first connecting end is fixedly connected with the motion assembly, the first connecting piece penetrates through and fixes the second connecting end and the switching assembly, and the plate spring elastic sheet is fixedly connected with the support through the switching assembly. The reciprocating magnetic suspension linear motor has high frequency consistency and small error.

Description

Reciprocating magnetic suspension linear motor and electric shearing device

Technical Field

The application relates to the technical field of linear motors, in particular to a reciprocating magnetic suspension linear motor.

Background

The reciprocating magnetic suspension linear motor is also called a linear motor and mainly comprises a motion assembly (rotor) and a driving assembly (stator), wherein the motion assembly comprises a permanent magnet, and the driving assembly comprises an electromagnet formed by winding a coil by an iron core. A certain gap is arranged between the permanent magnet and the iron core coil. The permanent magnet of the reciprocating linear motor reciprocates at a certain frequency relative to the iron core coil, and an elastic supporting mechanism is required to provide support to ensure a gap between the permanent magnet and the iron core at the moment, and simultaneously the elastic supporting mechanism can provide elastic restoring force of the reciprocating motion of the permanent magnet.

In the linear motor of the related art, the elastic supporting mechanism is arranged as an elastic sheet, so that one end of the elastic sheet is fixed with the permanent magnet, and the other end of the elastic sheet is directly welded with the base or the shell of the bracket. The elastic sheet is directly welded with the base or the shell, so that the metal characteristic of the elastic sheet can be influenced, the vibration frequency of the elastic sheet is influenced, the natural frequency of the elastic sheet and the permanent magnet is low in frequency consistency with the current change direction, and the reciprocating motion precision and efficiency of the motor are further influenced.

The foregoing is merely provided to facilitate an understanding of the principles of the utility model and is not admitted to be prior art.

Disclosure of Invention

In view of the above, the present utility model proposes a reciprocating magnetic levitation linear motor, which aims to improve the vibration consistency of the linear motor.

In order to achieve the above purpose, the reciprocating magnetic suspension linear motor provided by the utility model comprises a bracket, two groups of elastic support modules, a driving assembly and a moving assembly suspended above the driving assembly, wherein the driving assembly is arranged on the bracket so as to drive the moving assembly to reciprocate along a preset direction under the electromagnetic action; the two ends of the motion assembly along the preset direction are respectively connected with the bracket through a group of elastic support modules; wherein, the liquid crystal display device comprises a liquid crystal display device,

The elastic support module comprises a plate spring elastic sheet, a switching component and a first connecting piece, wherein the plate spring elastic sheet is provided with a first connecting end and a second connecting end, the first connecting end is fixedly connected with the motion component, the first connecting piece penetrates through and fixes the second connecting end and the switching component, and the plate spring elastic sheet is fixedly connected with the support through the switching component.

In one embodiment, the bracket comprises a housing and a base, wherein the base, the motion assembly and the driving assembly are arranged in the housing; the driving component and the switching component are fixedly arranged on the base.

In an embodiment, the base extends along the preset direction to be long-strip-shaped, and two ends of the base in the length direction extend out of the moving assembly to form a mounting section, a positioning caulking groove is formed in the mounting section, the switching assembly is adaptively embedded in the positioning caulking groove, and the switching assembly is welded with the inner surface of the positioning caulking groove.

In an embodiment, the switching assembly includes two opposite embedded blocks, the two embedded blocks clamp two sides of the board surface of the second connecting end, and the first connecting piece is penetrated and connected with the two embedded blocks and the second connecting end.

In an embodiment, the first connecting piece is a rivet, the upper surface of the base is recessed to form the positioning caulking groove, and a clearance space is formed in the base corresponding to the rivet.

In an embodiment, the bottom wall surface of the positioning caulking groove is provided with a positioning through hole, the embedding block comprises a main body part and an inserting part connected to the lower surface of the main body part, the inserting part is adapted to be inserted into the positioning through hole, and the main body part is adapted to be embedded into the positioning caulking groove and is abutted against the bottom wall surface of the positioning caulking groove.

In an embodiment, two ends of the main body part in the width direction of the base extend out of the inserting part, and the width direction of the base intersects with the up-down direction and the length direction of the base; the second connecting end comprises a main body section and a plug-in section connected to the lower surface of the main body section; the inserting section is clamped between the inserting parts of the two embedded blocks, and the main body section is clamped between the main body parts of the two embedded blocks; the inserting section is inserted into the positioning through hole, and the lower surface of the main body section is abutted against the bottom wall surface of the positioning caulking groove;

the main body part with the internal surface of location caulking groove, grafting portion with the internal surface welding setting of location through-hole.

In an embodiment, the leaf spring elastic piece extends in a spiral shape, the central end of the leaf spring elastic piece forms the first connecting end, and the outer end of the leaf spring elastic piece forms the second connecting end; the motion assembly comprises a magnet mounting seat and a magnet mounted on the magnet mounting seat, connecting sections are formed at two ends of the magnet mounting seat, and each connecting section is correspondingly inserted and welded at a first connecting end.

In an embodiment, the reciprocating magnetic suspension linear motor further comprises two groups of suspension damping modules, wherein the suspension damping modules comprise a rebound piece, a clamping block assembly and a second connecting piece, the second connecting piece is penetrated and fixedly connected with the lower end of the rebound piece and the clamping block assembly, and the clamping block assembly is fixedly connected with the base; the upper end of the return spring is fixedly connected with the shell so that the base and the shell are arranged at intervals

In an embodiment, the clamping block assembly comprises two clamping blocks which are oppositely arranged, the lower end of the rebound piece is clamped between the two clamping blocks, and the second connecting piece penetrates through and connects the two clamping blocks and the rebound piece.

In an embodiment, two ends of the base along the preset direction are convexly provided with embedded protruding blocks, the clamping blocks and the rebound pieces are respectively provided with a first jack and a second jack corresponding to the embedded protruding blocks, the embedded protruding blocks are adaptively inserted into the first jack and the second jack, and the embedded protruding blocks are welded with the inner wall surface of the first jack.

In an embodiment, the rebound piece comprises a transverse extension section and two vertical extension sections arranged side by side, wherein the lower ends of the two vertical extension sections are respectively connected with the two ends of the transverse extension sections; the second jack is arranged on the transverse extension section, two clamping blocks are clamped on two sides of the transverse extension section, and the second connecting piece penetrates through and connects the two clamping blocks and the transverse extension section; the suspension damping module further comprises a transverse connecting sheet, and the upper ends of the two vertical extending sections are clamped between the transverse connecting sheet and the shell.

In one embodiment, the second connector is a rivet; two through holes are formed in the positions, corresponding to the two vertical extension sections, of the transverse extension section, and the second jack is located between the two through holes; the rivet penetrates through the through hole and the clamping block to fixedly connect the rebound piece and the clamping block module; the upper end of each vertical extension section is fixedly connected between the shell and the transverse connecting sheet through a rivet.

In an embodiment, the shell includes a shell main body and mounting protrusions connected to top surfaces of two ends of the shell main body along a preset direction, and the upper end of the elastic return sheet is fixedly connected to the inner surface of the mounting protrusion, so that the top surface of the elastic return sheet is higher than or flush with the top surface of the leaf spring elastic sheet.

The utility model also provides an electric shearing device which comprises a cutter head assembly and a reciprocating magnetic suspension linear motor;

the reciprocating magnetic suspension linear motor comprises a bracket, two groups of elastic support modules, a driving assembly and a moving assembly suspended above the driving assembly, wherein the driving assembly is arranged on the bracket so as to drive the moving assembly to reciprocate along a preset direction under the electromagnetic action; the two ends of the motion assembly along the preset direction are respectively connected with the bracket through a group of elastic support modules; wherein, the liquid crystal display device comprises a liquid crystal display device,

the elastic support module comprises a plate spring elastic sheet, a switching assembly and a first connecting piece, wherein the plate spring elastic sheet is provided with a first connecting end and a second connecting end, the first connecting end is fixedly connected with the motion assembly, the first connecting piece penetrates through and fixes the second connecting end and the switching assembly, and the plate spring elastic sheet is fixedly connected with the bracket through the switching assembly;

the motion component of the reciprocating magnetic suspension linear motor is connected with the tool bit component to drive the tool bit component to reciprocate

According to the utility model, the elastic support module comprises the leaf spring elastic piece, the switching component and the first connecting piece, so that the first connecting end of the leaf spring elastic piece is fixedly connected with the motion component, and the second connecting end of the leaf spring elastic piece is fixedly connected with the switching component through the first connecting piece, so that the whole leaf spring elastic piece is fixedly connected with the bracket through the switching component. Compared with the mode that the plate spring elastic sheet is directly welded and fixed on the support, the influence of welding on the metal characteristics of the plate spring elastic sheet can be effectively avoided, so that the influence on the vibration frequency of the plate spring elastic sheet is avoided, the frequency consistency of the natural frequency and the current change direction of the plate spring elastic sheet is further improved, the reciprocating motion precision and efficiency of the reciprocating magnetic suspension linear motor are ensured, and the product quality is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a reciprocating magnetic levitation linear motor according to an embodiment of the present utility model;

fig. 2 is an exploded view of the reciprocating magnetic levitation linear motor of fig. 1;

FIG. 3 is a schematic diagram of another exploded construction of the reciprocating magnetic levitation linear motor of FIG. 2;

FIG. 4 is a cross-sectional view of the reciprocating magnetic levitation linear motor of FIG. 2 at an angle;

FIG. 5 is a schematic view of a base according to an embodiment of the present utility model;

FIG. 6 is a schematic view of an embodiment of a leaf spring of the present utility model;

fig. 7 is a schematic structural diagram of an embodiment of the return spring of the present utility model.

Reference numerals illustrate:

the achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout is meant to include three side-by-side schemes, for example, "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B meet at the same time.

The utility model provides a reciprocating magnetic suspension linear motor.

In the embodiment of the present utility model, referring to fig. 1 to 4, the reciprocating magnetic levitation linear motor 10 includes a support 100, two groups of elastic support modules 200, a driving assembly 300 and a moving assembly 400 suspended above the driving assembly 300, wherein the driving assembly 300 is mounted on the support 100 to drive the moving assembly 400 to reciprocate along a predetermined direction through electromagnetic action; both ends of the moving assembly 400 along a preset direction are respectively connected to the bracket 100 through a group of elastic support modules 200; wherein, the liquid crystal display device comprises a liquid crystal display device,

The elastic support module 200 includes a leaf spring elastic sheet 210, a switching assembly 220, and a first connecting member 230, wherein the leaf spring elastic sheet 210 has a first connecting end 211 and a second connecting end 212, the first connecting end 211 is fixedly connected to the moving assembly 400, the first connecting member 230 is threaded through and fixes the second connecting end 212 and the switching assembly 220, and the leaf spring elastic sheet 210 is fixedly connected to the bracket 100 through the switching assembly 220.

In the present embodiment, the bracket 100 is the body of the entire reciprocating magnetic levitation linear motor 10, and the bracket 100 provides mounting for the driving assembly 300 and the like. The stand 100 may include only the base 120, and both the driving assembly 300 and the adapting assembly 220 are fixed to the base 120. The stand 100 may also include only the housing 110, and both the driving assembly 300 and the adapting assembly 220 are fixed to the housing 110. The stand 100 may further include a base 120 and a housing 110, such that the driving assembly 300 is fixed to the base 120, and the adapting assembly 220 is fixed to the base 120 or the housing 110.

The motion assembly 400 may specifically include a permanent magnet and a magnet mount 410, wherein the permanent magnet is fixed on the magnet mount 410, and two ends of the magnet mount 410 are respectively connected to the bracket 100 through a set of elastic support modules 200. The driving assembly 300 specifically includes an iron core, a bobbin, and a coil wound around the bobbin and mounted on the iron core through the bobbin. The iron core may be a U-shaped iron core, an E-shaped iron core, or the like, and different types of iron cores may be selected according to actual needs, which is not particularly limited herein. The driving assembly 300 may be provided in only one group, and the moving assembly 400 may be provided in only one group or in two groups. When the moving assemblies 400 are arranged in two groups, the magnetic poles corresponding to the permanent magnets of the two groups of moving assemblies 400 are opposite. Thus, the one set of driving assemblies 300 can simultaneously drive the two sets of moving assemblies 400 to reciprocate in opposite directions. Of course, the driving assemblies 300 may be arranged in two or more groups, and when the driving assemblies 300 are arranged in two groups, the moving assemblies 400 are also arranged in two groups, and each group of moving assemblies 400 is arranged above the driving assemblies 300, so that the corresponding driving assemblies 300 are respectively driven to reciprocate in opposite directions by the two groups of driving assemblies 300. The specific number of drive assemblies 300 and motion assemblies 400 is not limited herein and may be selected and designed according to the specific type of reciprocating magnetic levitation linear motor 10.

It should be noted that, if a directional indication (such as up, down, left, right, front, and rear … …) is involved in the embodiment of the present utility model, the directional indication is merely used to explain the relative positional relationship, movement condition, etc. between the components in a specific posture, and if the specific posture is changed, the directional indication is correspondingly changed. Both ends of the moving assembly 400 are respectively connected to the bracket 100 through a set of elastic support modules 200, and the moving assembly 400 is suspended above the driving assembly 300 through the elastic support modules 200. After the coils of the driving assembly 300 are powered by the alternating current, the driving assembly 300 forms an electromagnet, and the driving assembly 300 drives the moving assembly 400 to reciprocate along the preset direction through the magnetic induction action of the electromagnet and the permanent magnet and the elastic restoring action of the two elastic supporting modules 200. In practical use, the reciprocating magnetic suspension linear motor 10 can drive the movable blade of the electric shearing device to reciprocate rapidly relative to the static blade or drive the two movable blades of the electric shearing device to reciprocate in opposite directions by mounting the cutter head assembly on the magnet mounting seat 410 of the moving assembly 400, so as to cut hair.

The leaf spring elastic piece 210 has a plate-like structure having a certain elasticity, and in general, the leaf spring elastic piece 210 is a sheet metal member. Each set of elastic support modules 200 may include a number of leaf spring clips 210, for example, each set of elastic support modules 200 may include only one leaf spring clip 210, or may include two or more leaf spring clips 210 stacked or spaced apart. The number of the leaf spring pieces 210 can be selected and designed according to practical requirements, and is not particularly limited herein. The shape of the leaf spring 210 may be various, for example, the leaf spring 210 may be in a mosquito-repellent incense coil shape, a runway spiral shape, a strip shape, a frame shape, etc., and only needs to make the leaf spring 210 stably support the motion assembly 400 on the support 100, and provide an elastic restoring force for the leaf spring 210 in the opposite direction while the motion assembly 400 reciprocates along the preset direction.

For improved structural strength, the adapter assembly 220 and the bracket 100 are typically made of metal. The first connection end 211 of the leaf spring elastic sheet 210 and the moving assembly 400 may be fixedly connected by welding, embedding, welding, or the like. The structure of the adaptor assembly 220 may be many, for example, the adaptor assembly 220 may have a block structure, a plate structure, etc. The first connecting member 230 may be a rivet, a screw, a bolt, or the like. Specifically, the second connection end 212 of the leaf spring elastic sheet 210 and the adapting assembly 220 are provided with through holes, so that the first connection piece 230 is inserted through the through holes of the leaf spring elastic sheet 210 and the adapting assembly 220 to fixedly connect the second connection end 212 of the leaf spring elastic sheet 210 and the adapting assembly 220.

The second connecting end 212 of the leaf spring elastic sheet 210 and the switching component 220 are connected through the first connecting piece 230, so that compared with a welding mode, the metal characteristic of the leaf spring elastic sheet 210 is not affected while the leaf spring elastic sheet 210 and the switching component 220 are firmly connected, and the vibration frequency of the leaf spring elastic sheet 210 is prevented from being affected. The adapter assembly 220 may be fixedly coupled to the bracket 100 by welding, embedding, and welding, etc. Through setting up the switching subassembly 220 for leaf spring shell fragment 210 is fixed through first connecting piece 230 with the switching subassembly 220, and leaf spring shell fragment 210 passes through switching subassembly 220 fixed connection in support 100, compares in leaf spring shell fragment 210 direct fixed connection in support 100, and leaf spring shell fragment 210 need not direct and support 100 contact and welding, thereby can effectively avoid the welding to lead to leaf spring shell fragment 210 metal characteristic to receive the influence, and then improves leaf spring shell fragment 210 and current variation direction's frequency uniformity, reduces vibration error.

According to the utility model, the elastic support module 200 comprises the leaf spring elastic sheet 210, the switching component 220 and the first connecting piece 230, so that the first connecting end 211 of the leaf spring elastic sheet 210 is fixedly connected to the moving component 400, and the second connecting end 212 of the leaf spring elastic sheet 210 is fixedly connected to the switching component 220 through the first connecting piece 230, so that the whole leaf spring elastic sheet 210 is fixedly connected to the bracket 100 through the switching component 220. Compared with the mode that the plate spring elastic sheet 210 is directly welded and fixed on the support 100, the influence of welding on the metal characteristic of the plate spring elastic sheet 210 can be effectively avoided, so that the influence on the vibration frequency of the plate spring elastic sheet 210 is avoided, the frequency consistency of the natural frequency of the plate spring elastic sheet 210 and the current change direction is further improved, the reciprocating motion precision and efficiency of the reciprocating magnetic suspension linear motor 10 are ensured, and the product quality is improved.

In an embodiment, referring to fig. 1 to 4 again, the stand 100 includes a housing 110 and a base 120, and the base 120, the motion assembly 400 and the driving assembly 300 are disposed in the housing 110; the driving assembly 300 and the adapting assembly 220 are fixedly mounted to the base 120.

In this embodiment, the shape of the housing 110 may be many, for example, the housing 110 may be a frame-like structure, a square ring shape, etc., and the shape of the housing 110 may be selected and designed according to practical requirements, which is not limited herein. The base 120 is generally configured in a block or disc structure, and the base 120 and the housing 110 may be directly and fixedly connected, or may be elastically connected through an elastic member, that is, the base 120 is suspended and connected to the housing 110, so as to further cushion and absorb shock. The housing 110 is used to provide a degree of protection for the structure of the motion assembly 400, the drive assembly 300, etc., and to integrally mount the linear motor within the housing 110 of the electric shear device.

The bobbin of the driving assembly 300 may be fixedly mounted on the base 120 by means of plugging and welding. Specifically, the base 120 may be provided with a positioning caulking groove 122, and when in installation, the adaptor assembly 220 is firstly embedded in the positioning caulking groove 122 on the base 120, and then the adaptor assembly 220 is welded with the portion of the inner wall surface of the positioning caulking groove 122. In this way, the leaf spring 210 does not need to be directly welded to the base 120, so that the influence of welding on the metal characteristics of the leaf spring 210 can be effectively reduced or avoided. Through making the drive assembly 300 and the switching assembly 220 all be fixed in the base 120, compare in the mode of being fixed in the shell 110 with the switching assembly 220, because the weight of drive assembly 300 is greater than the weight of motion assembly 400 far away, then make full use of drive assembly 300 buffering shock attenuation reduces shell 110 shock sensation, promotes the product and uses the comfort level.

In an embodiment, as shown in fig. 1 to 5, the base 120 extends along a preset direction to form a strip shape, and two ends of the base 120 in a length direction extend out of the moving assembly 400 to form a mounting section 121, the mounting section 121 is provided with a positioning caulking groove 122, the adapting assembly 220 is adapted to be embedded in the positioning caulking groove 122, and the adapting assembly 220 is welded with an inner surface of the positioning caulking groove 122.

In this embodiment, the base 120 extends along a predetermined direction to form a long strip, and the driving assembly 300 is substantially fixedly connected to the middle portion of the base 120. The two ends of the base 120 along the length direction extend out of the moving assemblies 400, the switching assembly 220 is embedded in the positioning caulking groove 122 of the mounting section 121, the driving assembly 300 can be effectively prevented from interfering with the swing of the leaf spring elastic sheet 210, and the whole structure is more compact and the size is smaller. By providing the positioning caulking groove 122 on the mounting section 121, the adaptor assembly 220 is adaptively embedded in the positioning caulking groove 122, and the positioning caulking groove 122 provides pre-positioning mounting for the adaptor assembly 220, so that the mounting convenience and the assembly precision of the adaptor assembly 220 can be improved. To ensure the usability of the product, the base 120 and the adapter assembly 220 are made of metal materials. The connection stability of the connection assembly 220 and the base 120 can be ensured by welding the connection assembly 220 and the inner surface of the positioning caulking groove 122, so that the performance stability of the product can be ensured. Specifically, the outer peripheral wall of the adapter assembly 220 is welded to the portion of the inner wall surface of the positioning caulking groove 122. In this way, the connection stability between the adaptor assembly 220 and the base 120 can be further improved.

Further, referring to fig. 1 to 4, the adaptor assembly 220 includes two opposite embedded blocks 221, the two embedded blocks 221 clamp two sides of the board surface of the second connecting end 212, and the first connecting piece 230 is inserted into and connected with the two embedded blocks 221 and the second connecting end 212.

In this embodiment, the embedding block 221 may be a strip-shaped block structure or a square block structure, and may be selected and designed according to the size of the leaf spring elastic sheet 210, which is not limited herein. The shape and size of the two opposing blocks 221 may be the same or may be different or slightly different. To ensure consistent clamping of the two blocks 221 to the second connection end 212, the two blocks 221 may optionally be shaped and sized to be consistent. The two embedded blocks 221 are clamped on two sides of the plate surface of the second connecting end 212, so that the contact area between the embedded blocks 221 and the second connecting end 212 is maximized, and the fixing of the embedded blocks 221 and the second connecting end 212 is smoother. The first connecting piece 230 is inserted into and connects the two embedded blocks 221 and the second connecting end 212, so that the embedded blocks 221 and the second connecting end 212 integrally form a block structure, and the second connecting end 212 is more convenient to be installed in the positioning caulking groove 122. Meanwhile, as the two sides of the plate surface of the second connecting end 212 of the leaf spring elastic sheet 210 are clamped between the two embedded blocks 221, the second connecting end 212 of the leaf spring elastic sheet 210 can be effectively prevented from deforming and warping, the frequency consistency of the leaf spring elastic sheet 210 and the current change direction is further ensured, and the vibration error is reduced.

In an embodiment, as shown in fig. 1 to 4, the first connecting member 230 is a rivet, the upper surface of the base 120 is recessed to form the positioning caulking groove 122, and the base 120 is provided with a clearance space 124 corresponding to the rivet.

In this embodiment, by making the first connecting member 230 be a rivet, compared with a bolt and other structures, the situation that the first connecting member 230 is loosened due to long-term vibration can be effectively avoided, so that the connection between the leaf spring elastic sheet 210 and the adapting assembly 220 is more stable and reliable. Through recessing the upper surface of the base 120 to form the positioning caulking groove 122, the leaf spring elastic sheet 210 and the switching component 220 can be embedded in the positioning caulking groove 122 from top to bottom, so that the switching component 220 is more convenient to install in the positioning caulking groove 122, and the overall assembly efficiency is improved. By providing the clearance space 124 at the position of the base 120 corresponding to the rivet, interference of the base 120 with the rivet installation can be avoided.

On the basis of the above embodiment, further, referring to fig. 2 to 5, the bottom wall surface of the positioning caulking groove 122 is provided with a positioning through hole 123, the embedded block 221 includes a main body portion 222 and an inserting portion 223 connected to the lower surface of the main body portion 222, the inserting portion 223 is adapted to be inserted into the positioning through hole 123, and the main body portion 222 is adapted to be embedded into the positioning caulking groove 122 and is abutted against the bottom wall surface of the positioning caulking groove 122.

In this embodiment, the positioning through hole 123 is formed on the bottom wall surface of the positioning caulking groove 122, so that the embedded block 221 includes a main body portion 222 and an inserting portion 223, the inserting portion 223 is adapted to be inserted into the positioning through hole 123, the main body portion 222 is adapted to be embedded into the positioning caulking groove 122 and is abutted against the bottom wall surface of the positioning caulking groove 122, two-stage positioning of the embedded block 221 and the base 120 is achieved, the positioning area and the welding area of the embedded block 221 and the base 120 can be effectively increased, the installation precision of the embedded block 221 and the base 120 is further improved, and meanwhile, the connection between the embedded block 221 and the base 120 is more stable and reliable.

Further, as shown in fig. 2 to 6, the body portion 222 is provided with protruding insertion portions 223 at both ends in the width direction of the base 120, and the width direction of the base 120 intersects the up-down direction and the length direction of the base 120; the second connection end 212 includes a body section 213 and a socket section 214 connected to a lower surface of the body section 213; the insertion section 214 is clamped between the insertion parts 223 of the two embedded blocks 221, and the main body section 213 is clamped between the main body parts 222 of the two embedded blocks 221; the inserting section 214 is inserted into the positioning through hole 123, and the lower surface of the main body section 213 abuts against the bottom wall surface of the positioning caulking groove 122;

the main body 222 and the inner surface of the positioning caulking groove 122, and the insertion portion 223 and the inner surface of the positioning through hole 123 are all welded.

In the present embodiment, the main body 222 has a substantially elongated block-like structure. The second connecting end 212 includes a main body section 213 and a plugging section 214, the main body section 213 is clamped between the main body portions 222 of the two plugging blocks 221, the plugging section 214 is clamped between the plugging portions 223 of the two plugging blocks 221, that is, the second connecting end 212 and the plugging blocks 221 are in a profiling arrangement, so that the contact area between the second connecting end 212 and the plugging blocks 221 can be effectively increased, and the installation accuracy between the second connecting end 212 and the plugging blocks 221 is further improved. Specifically, the width direction of the base 120 is perpendicular to the longitudinal direction and the up-down direction of the base 120. So that the two ends of the main body 222 in the width direction of the base 120 extend out of the plugging portion 223, and the two ends of the main body section 213 in the width direction of the base 120 also extend out of the plugging portion 214, so that the whole second connecting end 212 can be kept in a sheet shape, and the two embedding blocks 221 can clamp the second connecting end 212 more firmly and reliably.

To avoid interference, positioning caulking grooves 122 may be provided so that both ends in the width direction of the base 120 penetrate through the side wall of the base 120. Thus, the positioning caulking groove 122 is a through groove in the width direction of the base 120. The mounting interference of the insert 221 and the base 120 due to manufacturing tolerance or deformation can be effectively avoided. While facilitating more welding between the insert 221 and the base 120.

The main body 222 and the inner surface of the positioning caulking groove 122, and the insertion portion 223 and the inner surface of the positioning through hole 123 are all welded. Specifically, the bottom wall surface of the main body 222 and the bottom wall surface of the insertion groove, the side wall surface of the insertion groove and the side wall surface of the insertion groove, the bottom periphery of the insertion portion 223, and the inner periphery of the positioning through hole 123 are welded to each other. While the connection stability between the embedded block 221 and the base 120 is improved to the greatest extent, the influence of welding on the metal characteristics of the leaf spring elastic sheet 210 is reduced, and the motor frequency consistency is further improved.

In an embodiment, referring to fig. 1 to 6, the plate spring elastic sheet 210 extends in a spiral shape, a central end of the plate spring elastic sheet 210 forms a first connection end 211, and an outer end of the plate spring elastic sheet 210 forms a second connection end 212; the moving assembly 400 includes a magnet mounting base 410 and a magnet 420 mounted on the magnet mounting base 410, wherein connecting sections 411 are formed at two ends of the magnet mounting base 410, and each connecting section 411 is correspondingly inserted into and welded to a first connecting end 211.

In this embodiment, the leaf spring 210 has a structure that spirals from the center to the outside, and the leaf spring 210 may spiral in a mosquito-repellent incense shape, spiral in a racetrack shape, or the like, which is not particularly limited herein. The center end of the leaf spring elastic piece 210 is referred to as the center spiral start end, and the outer end of the leaf spring elastic piece 210 is referred to as the outer spiral end. By making the leaf spring 210 spiral in the center, the spring arm of the leaf spring 210 can be made longer than other structures in the same space occupation, so that sufficient spring force and supporting force can be provided to the movement assembly 400. In other words, the leaf spring elastic sheet 210 of the present embodiment can make the occupied space smaller while ensuring sufficient elastic force and supporting force, and the overall volume is smaller.

The magnet mount 410 is made of metal to ensure structural strength. Specifically, the center end of the leaf spring elastic sheet 210 is provided with a through hole, and the connection section 411 is adapted to be inserted into the through hole. By enabling the connection sections 411 at the two ends of the magnet mounting base 410 to be inserted into the center end (the first connection end 211) of the leaf spring elastic sheet 210, the pre-positioning mounting of the magnet mounting base 410 and the center end of the leaf spring elastic sheet 210 is achieved, and subsequent welding operation is facilitated. It can be appreciated that the center end of the plate spring elastic piece 210 is fixedly connected with the magnet mount 410, that is, the center end of the plate spring elastic piece 210 is driven by the magnet 420 to reciprocate in a preset direction, and then vibration is transmitted to the base 120 through the plate spring elastic piece 210. The center end of the leaf spring elastic sheet 210 is a vibration start end, and the outer end is a vibration end, so that the influence of the outer end metal characteristic of the leaf spring elastic sheet 210 on the vibration frequency is greater, and the influence of the metal characteristic of the center end of the leaf spring elastic sheet 210 on the vibration frequency is smaller. By welding the connection section 411 of the magnet mount 410 with the first connection end 211, the stable connection between the magnet mount 410 and the leaf spring elastic sheet 210 is ensured while the vibration frequency of the leaf spring elastic sheet 210 is not affected basically, so that the leaf spring elastic sheet 210 is prevented from falling off from the magnet mount 410 due to long-term vibration.

In combination with the above embodiment in which the adaptor assembly 220 is fixedly mounted on the base 120, further, as shown in fig. 1 to 4 and 7, the reciprocating magnetic suspension linear motor 10 further includes two sets of suspension damping modules 500, the suspension damping modules 500 include a return spring plate 510, a clamping block assembly 520 and a second connecting member 530, the second connecting member 530 is penetrated and fixedly connected with the lower end of the return spring plate 510 and the clamping block assembly 520, and the clamping block assembly 520 is fixedly connected with the base 120; the upper end of the return spring 510 is fixedly connected to the housing 110 to enable the base 120 and the housing 110 to be arranged at intervals

In this embodiment, the resilient sheet 510 is made of an elastic material and has a certain rigidity. For example, the rebound piece 510 may be a sheet metal member. Each set of suspension damper modules 500 may include a number of rebound pieces 510, for example, each set of suspension damper modules 500 may include only one rebound piece 510 or may include two or more stacked or spaced rebound pieces 510. The number of the resilient pieces 510 can be selected and designed according to practical requirements, and is not particularly limited herein. The shape of the return spring 510 may be varied, for example, mosquito coil, racetrack coil, frame, etc. The return spring 510 is used for suspending the base 120 from the housing 110, so as to effectively cushion and dampen the shock between the base 120 and the housing 110.

So that the base 120 is suspended from the housing 110 through the suspension damper module 500, the vibration of the motion assembly 400 is firstly transferred to the base 120 through the elastic support module 200, and then is further absorbed by the rebound piece 510 of the suspension damper module 500 after being absorbed by the driving assembly 300 on the base 120, and finally transferred to the housing 110. In this manner, the vibration of the entire linear motor is substantially absorbed by the driving assembly 300 and the suspension damping module 500, so that the shock feeling of the entire housing 110 can be effectively attenuated. Because the one end of the return spring 510 is connected with the base 120, the other end is connected with the housing 110, compared with the scheme that one end of the return spring 510 is connected with the moving assembly 400, and the other end is connected with the housing 110, the weight of the base 120 plus the stator assembly is far greater than that of the moving assembly 400 plus the cutter head assembly, so that the initial acceleration of the moving assembly 400 to the return spring 510 is smaller, and the swing of the return spring 510 relative to the housing 110 is smaller, thereby being more beneficial to shock absorption. The electric shearing device adopting the linear motor has more comfortable hand feeling, and is particularly obvious under high-frequency vibration.

To improve structural strength, the return spring 510 and the clamp block assembly 520 are typically made of metal. The upper end of the return spring 510 and the housing 110 may be fixedly connected by welding, riveting, or the like. There are many configurations of the clamp block assembly 520, for example, the clamp block assembly 520 may have a block-like structure, a plate-like structure, or the like. The second connecting member 530 may be a rivet, a screw, a bolt, or the like. Specifically, the lower end of the resilient sheet 510 and the clamping block assembly 520 are provided with through holes, so that the second connecting member 530 penetrates through the resilient sheet 510 and the through holes of the clamping block assembly 520 to fixedly connect the lower end of the resilient sheet 510 and the clamping block assembly 520. The lower end of the return spring plate 510 and the clamping block assembly 520 are connected through the second connecting piece 530, so that compared with a welding mode, the metal characteristic of the return spring plate 510 is not affected while the return spring plate 510 and the clamping block assembly 520 are firmly connected, and further the vibration frequency of the return spring plate 510 is prevented from being affected. The clamp block assembly 520 may be fixedly attached to the base 120 by welding, insert-and-weld, or the like. Through setting up clamp splice subassembly 520 for rebound piece 510 and clamp splice subassembly 520 are fixed through second connecting piece 530, and rebound piece 510 passes through clamp splice subassembly 520 fixed connection in base 120, compares in rebound piece 510 direct fixed connection in base 120, and rebound piece 510 need not direct contact and welding with shell 110, thereby can effectively avoid the welding to lead to rebound piece 510 metal characteristic to receive the influence, improves the shock attenuation effect.

Further, referring to fig. 1 to 4, the clamping block assembly 520 includes two opposite clamping blocks 521, the lower end of the resilient piece 510 is clamped between the two clamping blocks 521, and the second connecting member 530 is disposed through and connects the two clamping blocks 521 and the resilient piece 510.

In this embodiment, the clamping block 521 may be a strip-shaped block structure or a square block structure, and may be selected and designed according to the size of the resilient piece 510, which is not limited herein. The shape and size of the two opposing clamping blocks 521 may be the same or may be different or slightly different. To ensure consistent clamping of the two clamping blocks 521 to the lower end of the resilient sheet 510, the two clamping blocks 521 may optionally be shaped and sized to be consistent. The two clamping blocks 521 are clamped on two sides of the lower end of the resilient sheet 510, so that the contact area between the clamping blocks 521 and the resilient sheet 510 is maximized, and the clamping blocks 521 and the resilient sheet 510 are more stably fixed. The second connecting piece 530 is inserted through and connects the two clamping blocks 521 and the lower ends of the resilient sheet 510, so that the clamping blocks 521 and the lower ends of the resilient sheet 510 integrally form a block structure, and the lower ends of the resilient sheet 510 are more convenient to be mounted on the base 120. Meanwhile, as the two sides of the lower end plate surface of the return spring plate 510 are clamped between the two clamping blocks 521, the deformation and tilting of the lower end of the return spring plate 510 can be effectively prevented, and the damping effect of the return spring plate 510 is further ensured.

Further, as shown in fig. 1 to 5, two ends of the base 120 along the preset direction are convexly provided with an embedded bump 125, a first insertion hole 522 and a second insertion hole 512 are respectively provided by the clamping block 521 and the rebound piece 510 corresponding to the embedded bump 125, the embedded bump 125 is inserted into the first insertion hole 522 and the second insertion hole 512 in an adapting manner, and the embedded bump 125 is welded with the inner wall surface of the first insertion hole 522.

In this embodiment, during installation, the embedded protruding blocks 125 at two ends of the base 120 are respectively embedded in the first insertion holes 522 of the clamping blocks 521 and the second insertion holes 512 of the resilient pieces 510, so as to realize the pre-positioning installation of the base 120, the clamping blocks 521 and the resilient pieces 510, and facilitate the subsequent welding operation. By welding the embedded bump 125 of the base 120 with the inner wall surface of the first jack 522, the stable connection between the base 120 and the clamping block 521 and the resilient sheet 510 is ensured while the vibration frequency of the resilient sheet 510 is not affected basically, and the resilient sheet 510 and the clamping block 521 are prevented from falling off from the base 120 due to long-term vibration. Specifically, the outer peripheral surface of the fitting projection 125 is welded to the inner wall surface of the first insertion hole 522.

In an embodiment, referring to fig. 7, the rebound piece 510 includes a lateral extension 511 and two vertical extension 514 arranged side by side, wherein the lower ends of the two vertical extension 514 are respectively connected to two ends of the lateral extension 511; the second jack 512 is formed in the lateral extension 511, two clamping blocks 521 are clamped on two sides of the lateral extension 511, and the second connecting piece 530 is arranged in a penetrating manner and connects the two clamping blocks 521 and the lateral extension 511; the suspension damper module 500 further includes a transverse connection piece 540, and the upper ends of the two vertically extending sections 514 are sandwiched between the transverse connection piece 540 and the housing 110.

In the present embodiment, the lateral extension 511 and the two vertical extensions 514 are integrally formed. The resilient sheet 510 includes a transverse extension 511 and two vertical extensions 514 arranged side by side, and the resilient sheet 510 is substantially U-shaped. The resilient sheet 510 is in a U shape, and compared with the resilient sheet 510 which is in a ring shape, the upper end opening of the resilient sheet 510 can absorb the mounting error, so that the assembly between the resilient sheet 510 and the clamping block assembly 520 and the housing 110 is more reliable, and the resilient sheet 510 can be effectively prevented from deforming to affect the resilient effect. By providing the transverse connection piece 540 such that the upper ends of the two vertical extension sections 514 are clamped between the transverse connection piece 540 and the housing 110, a stable connection between the vertical extension sections 514 and the housing 110 can be ensured.

The resilient sheet 510 having a U-shape is simple in structure and easy to assemble, and the two vertically extending sections 514 of the resilient sheet 510 can provide a stable resilient force, thereby ensuring the shock absorption and supporting effects of the whole suspension shock absorbing module 500. The two clamping blocks 521 are clamped at two sides of the lateral extension 511, the second connecting piece 530 is inserted through and connects the clamping blocks 521 and the lateral extension 511, the second insertion hole 512 is formed in the lateral extension 511, the lateral extension 511 is fully utilized to realize the fixed connection of the resilient piece 510 and the clamping blocks 521, and the rebound effect of the two vertical extensions 514 is prevented from being affected by the second connecting piece 530 and the embedded bump 125.

In one embodiment, as shown in fig. 1 to 3 and 7, the second connecting member 530 is a rivet; two through holes 513 are formed in the positions of the transverse extension sections 511 corresponding to the two vertical extension sections 514, and the second jack 512 is located between the two through holes 513; the rivet penetrates through the through hole 513 and the clamping block 521 to fixedly connect the return spring plate 510 and the clamping block 521; the upper end of each vertically extending section 514 is fixedly connected between the housing 110 and the transverse attachment plate 540 by a rivet.

In this embodiment, by making the second connecting member 530 be a rivet, compared with a bolt or other structure, the second connecting member 530 can be effectively prevented from being loosened due to long-term vibration, so that the connection between the resilient sheet 510 and the clamping block assembly 520 is more stable and reliable. The second insertion hole 512 is located between the two through holes 513, and two lateral ends of the two clamping blocks 521 are respectively fixedly connected with the lateral extension section 511 through a rivet, so that tilting deformation of the two lateral ends of the lateral extension section 511 can be avoided, and the connection between the lateral extension section 511 and the clamping blocks 521 is smoother and more reliable. After the rebound piece 510 is connected with the two clamping blocks 521 through rivets, the rebound piece 510 and the clamping blocks 521 integrally form a module, then the embedded blocks 221 on the base 120 are correspondingly embedded in the middle parts of the clamping blocks 521 and the transverse extension sections 511, and the contact edges of the embedded blocks and the transverse extension sections are welded, so that the suspension damping module 500 and the base 120 can be fixed. The upper end of each vertical extension 514 is fixedly connected with the shell 110 and the transverse connection piece 540 through a rivet, so that the connection stability of the vertical extension 514 and the shell 110 and the transverse connection piece 540 can be ensured, and the loosening caused by long-term use can be avoided.

In an embodiment, referring to fig. 1 and 2, the housing 110 includes a housing main body 111 and mounting protrusions 112 connected to top surfaces of two ends of the housing main body 111 along a predetermined direction, and an upper end of the resilient sheet 510 is fixedly connected to an inner surface of the mounting protrusions 112, so that a top surface of the resilient sheet 510 is higher than or flush with a top surface of the leaf spring 210.

By protruding the mounting bump 112 on the top surface of the shell main body 111, the upper end of the resilient sheet 510 is fixedly connected to the inner surface of the mounting bump 112, so as to avoid the interference of the external structure of the shell main body 111 with the elastic recovery of the resilient sheet 510. It will be appreciated that the longer the length of the rebound piece 510, the smaller its excursion. When the effective swing length of the return spring 510 is smaller than that of the leaf spring 210, the vibration transmitted to the return spring 510 by the base 120 causes the swing amplitude of the return spring 510 to be larger, so that the shock feeling of the housing 110 is stronger. By making the top surface of the resilient sheet 510 higher than or flush with the top surface of the leaf spring elastic sheet 210, the effective swing length of the resilient sheet 510 can be made greater than or equal to the effective swing length of the leaf spring elastic sheet 210, so that the swing of the resilient sheet 510 is relatively smaller, and the shock feeling of the housing 110 can be further weakened.

The utility model also provides an electric shearing device, which comprises a cutter head assembly and a reciprocating magnetic suspension linear motor 10, wherein the specific structure of the reciprocating magnetic suspension linear motor 10 refers to the embodiment, and a motion assembly 400 of the reciprocating magnetic suspension linear motor 10 is connected with the cutter head assembly to drive the cutter head assembly to reciprocate; because the electric shearing device adopts all the technical schemes of all the embodiments, the electric shearing device at least has all the beneficial effects brought by the technical schemes of the embodiments, and the electric shearing device is not described in detail herein.

The electric shearing device may be specifically a shaver, a hair clipper, a hair trimmer, or the like, and is not particularly limited herein. When the reciprocating magnetic levitation linear motor 10 has only one moving component 400, a moving cutter head and a static cutter head can be arranged, so that the moving cutter head is connected with the moving component 400 of the reciprocating magnetic levitation linear motor 10, and the reciprocating magnetic levitation linear motor 10 drives the moving cutter head to reciprocate relative to the static cutter head so as to realize shearing. When the reciprocating magnetic suspension linear motor 10 has two moving assemblies 400, the cutter head assembly includes two moving cutter heads, and the two moving cutter heads are respectively connected with the two moving assemblies 400, so that the reciprocating magnetic suspension linear motor 10 drives the two moving cutter heads to respectively perform opposite reciprocating motions, so as to realize shearing.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and are not limiting thereof; although the present application has been described in detail with reference to the foregoing embodiments, one of ordinary skill in the art will appreciate that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not drive the essence of the corresponding technical solutions to depart from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims (15)

1. A reciprocating magnetic suspension linear motor comprises a bracket, two groups of elastic support modules, a driving assembly and a motion assembly suspended above the driving assembly,

the driving component is arranged on the bracket and used for driving the motion component to reciprocate along a preset direction under the electromagnetic action;

the two ends of the motion assembly along the preset direction are respectively connected with the bracket through a group of elastic support modules; it is characterized in that the method comprises the steps of,

the elastic support module comprises a plate spring elastic sheet, a switching component and a first connecting piece, wherein the plate spring elastic sheet is provided with a first connecting end and a second connecting end, the first connecting end is fixedly connected with the motion component, the first connecting piece penetrates through and fixes the second connecting end and the switching component, and the plate spring elastic sheet is fixedly connected with the support through the switching component.

2. A reciprocating magnetic levitation linear motor as defined in claim 1, wherein said support comprises a housing and a base, said moving assembly and said driving assembly being disposed within said housing; the driving component and the switching component are fixedly arranged on the base.

3. A reciprocating magnetic levitation linear motor as defined in claim 2, wherein the base extends in the preset direction to be long-strip-shaped, and two ends of the base in the length direction extend out of the moving assembly to form a mounting section, the mounting section is provided with a positioning caulking groove, the adapting assembly is adapted to be embedded in the positioning caulking groove, and the adapting assembly is welded with the inner surface of the positioning caulking groove.

4. A reciprocating magnetic levitation linear motor as defined in claim 3, wherein said switching assembly comprises two opposite embedded blocks, two said embedded blocks clamping two sides of the plate surface of said second connection end, said first connection member being inserted through and connecting two said embedded blocks and said second connection end.

5. A reciprocating magnetic levitation linear motor as defined in claim 4, wherein the first connecting member is a rivet, the upper surface of the base is recessed to form the positioning caulking groove, and the base is provided with a space for avoiding the rivet.

6. A reciprocating magnetic levitation linear motor as defined in claim 5, wherein the bottom wall surface of the positioning caulking groove is provided with a positioning through hole, the embedding block comprises a main body part and an inserting part connected to the lower surface of the main body part, the inserting part is adapted to be inserted into the positioning through hole, and the main body part is adapted to be embedded into the positioning caulking groove and is abutted against the bottom wall surface of the positioning caulking groove.

7. A reciprocating magnetic levitation linear motor as defined in claim 6, wherein the body portion is provided with both ends extending out of the insertion portion in a width direction of the base, the width direction of the base intersecting with an up-down direction and a length direction of the base; the second connecting end comprises a main body section and a plug-in section connected to the lower surface of the main body section; the inserting section is clamped between the inserting parts of the two embedded blocks, and the main body section is clamped between the main body parts of the two embedded blocks; the inserting section is inserted into the positioning through hole, and the lower surface of the main body section is abutted against the bottom wall surface of the positioning caulking groove;

the main body part with the internal surface of location caulking groove, grafting portion with the internal surface welding setting of location through-hole.

8. A reciprocating magnetic levitation linear motor as defined in claim 2, wherein the leaf spring elastic sheet extends in a spiral shape, a central end of the leaf spring elastic sheet forms the first connection end, and an outer end of the leaf spring elastic sheet forms the second connection end; the motion assembly comprises a magnet mounting seat and a magnet mounted on the magnet mounting seat, connecting sections are formed at two ends of the magnet mounting seat, and each connecting section is correspondingly inserted and welded at a first connecting end.

9. A reciprocating magnetic levitation linear motor as defined in any one of claims 2 to 8, further comprising two sets of suspension damping modules comprising a rebound piece, a clamping block assembly and a second connecting piece, the second connecting piece being threaded and fixedly connected to the lower end of the rebound piece and the clamping block assembly, the clamping block assembly being fixedly connected to the base; the upper end of the return spring is fixedly connected to the shell, so that the base and the shell are arranged at intervals.

10. A reciprocating magnetic levitation linear motor as defined in claim 9, wherein said clamping block assembly comprises two oppositely disposed clamping blocks, said lower end of said rebound piece being clamped between said two clamping blocks, said second connecting member being threaded through and connecting said two clamping blocks and said rebound piece.

11. A reciprocating magnetic levitation linear motor as defined in claim 10, wherein two ends of the base along a preset direction are convexly provided with an embedded protruding block, the clamping block and the rebound piece are respectively provided with a first inserting hole and a second inserting hole corresponding to the embedded protruding block, the embedded protruding block is adaptively inserted into the first inserting hole and the second inserting hole, and the embedded protruding block is welded with an inner wall surface of the first inserting hole.

12. A reciprocating magnetic levitation linear motor as defined in claim 11, wherein said rebound sheet comprises a transverse extension and two vertical extensions arranged side by side, the lower ends of both said vertical extensions being connected to both ends of said transverse extension, respectively; the second jack is arranged on the transverse extension section, two clamping blocks are clamped on two sides of the plate surface of the transverse extension section, and the second connecting piece penetrates through and connects the two clamping blocks and the transverse extension section; the suspension damping module further comprises a transverse connecting sheet, and the upper ends of the two vertical extending sections are clamped between the transverse connecting sheet and the shell.

13. A reciprocating magnetic levitation linear motor as defined in claim 12, wherein said second connecting member is a rivet; two through holes are formed in the positions, corresponding to the two vertical extension sections, of the transverse extension section, and the second jack is located between the two through holes; the rivet penetrates through the through hole and the clamping block to fixedly connect the rebound piece and the clamping block module; the upper end of each vertical extension section is fixedly connected between the shell and the transverse connecting sheet through a rivet.

14. A reciprocating magnetic levitation linear motor according to claim 9, wherein the housing comprises a housing body and mounting protrusions connected to top surfaces of both ends of the housing body in a predetermined direction, and the upper ends of the return spring plates are fixedly connected to inner surfaces of the mounting protrusions so that the top surfaces of the return spring plates are higher than or flush with the top surfaces of the leaf spring plates.

15. An electric shearing device, comprising a cutter head assembly and a reciprocating magnetic suspension linear motor as claimed in any one of claims 1 to 14, wherein a moving assembly of the reciprocating magnetic suspension linear motor is connected with the cutter head assembly to drive the cutter head assembly to reciprocate.

Images