CN218570067U - Linear motor and trimmer - Google Patents

Abstract

The utility model discloses a linear electric motor and clipping machine aims at solving among the prior art technical problem that the motor oscillating rate is low, the swing range is little and the equipment is numerous and diverse and leads to production efficiency to hang down. The utility model discloses a linear electric motor includes the mount, and stator module and motion subassembly are equipped with the track on the mount, and motion subassembly free form is established on the track, and stator module is fixed to be set up on the mount, and stator module is equipped with the stator winding that the coil coiling formed, and the motion subassembly includes at least one permanent magnet, compares with current motor, the utility model discloses a space and the use of structural design optimization part to the part realize the high-efficient stable straight reciprocating motion that just lasts, make the packaging efficiency higher.

Description

Linear motor and trimmer

Technical Field

The utility model relates to the field of motors, specifically a linear electric motor and clipping machine.

Background

The motor is an electromagnetic device which realizes the conversion or transmission of electric energy according to the law of electromagnetic induction, the main function of the motor is to generate driving torque, the motor can be used as a power source of electrical appliances or various machines, and the current motor (such as a patent number CN216490163U, shown in figure 1) has the following problems:

the motor drives the first support 7 'and the second support 6' to move through the first swinging piece 10 'and the second swinging piece 11', so that the first elastic piece 5 'and the second elastic piece 4' are deformed, and the first swinging piece 10 'and the second swinging piece 11' perform staggered reciprocating motion by taking the positions of the first elastic piece 5 'and the second elastic piece 4' as original points.

SUMMERY OF THE UTILITY MODEL

(1) Technical problem to be solved

Not enough to prior art, the utility model discloses main aim at provides a linear electric motor and clipping machine aims at solving among the prior art problem that motor oscillating rate and swing range are little.

(2) Technical scheme

In order to solve the technical problem, the utility model provides a linear motor and a trimmer, wherein the linear motor comprises a fixed frame, and a track is arranged on the fixed frame; the stator assembly is provided with a stator winding and an E-shaped stator silicon steel sheet, the lower end of the E-shaped stator silicon steel sheet is respectively provided with a first magnetic pole surface, a middle convex block and a second magnetic pole surface, and the stator winding is formed by winding the middle convex block; a moving assembly including at least a permanent magnet;

the stator assembly is fixedly arranged on the fixing frame, the moving assembly is freely arranged on the track, when the coil is electrified, the stator winding generates a magnetic field, and the stator assembly can drive the moving assembly 3 to do linear reciprocating motion between the first magnetic pole face and the second magnetic pole face along the track in the O-Y direction.

Furthermore, the fixing frame comprises an upper fixing frame and a lower fixing frame, and can effectively support the moving assembly and fix the stator assembly.

Furthermore, the lower fixing frame is provided with 4 springs, one end of each spring is sleeved on the lower fixing frame, the other end of each spring is sleeved on one side of the supporting plate, when the moving assembly moves linearly and reciprocally, the springs can reduce vibration of the moving assembly, vibration and impact of the moving assembly on the motor or equipment outside the motor can be effectively attenuated, the moving assembly has certain natural frequency, balanced and uniform amplitude is formed, and the service life of the motor is prolonged.

Furthermore, a lubricating device is arranged at the upper end of the upper fixing frame, the lubricating device comprises an oil groove, a lubricating agent and an oil cover, the oil groove is formed in the upper end face of the upper fixing frame, the lubricating agent is placed in the oil groove, the lubricating agent can be oil-immersed objects such as cotton strips or sponge and the like which can absorb lubricating oil, the lubricating agent can be stored in the oil groove for a long time, the lubricating agent can be used for a long time after being added once and can be replaced periodically, and the oil cover is placed above the oil groove to play a role in preventing dust and fixing the lubricating agent in the oil groove; the end surface is equipped with the through-hole one that runs through from top to bottom under the oil groove, the through-hole two that runs through from top to bottom is equipped with on the recess two, in the motion subassembly motion process, lubricating oil flows down and adheres to on last ball surface from the through-hole one, then flow to the ball on the surface down through the through-hole two, when the high frequency straight reciprocating motion of motion subassembly on the track, can make lubricating oil adhere to on last ball surface simultaneously, ball surface down, go up track surface and track surface down, form the lubricant film, play the lubrication action, reduce and go up ball surface and last track surface, the direct contact between the two surfaces of recess, thereby reduce coefficient of friction, effectively reduce the consumption of frictional resistance and power.

(3) Advantageous effects

Compared with the prior art, the beneficial effects of the utility model reside in that:

1. the utility model discloses in, when the coil circular telegram, when producing alternating magnetic field, stator module passes through magnetic force and drives motion subassembly along track straight reciprocating motion, and the motion subassembly is straight reciprocating motion, and the magnetic force that stator module provided can highly last and stable output, realizes the straight reciprocating motion of motion subassembly short time high frequency, and the magnetic pole direction of motion subassembly is the same with reciprocating motion's direction.

2. The utility model discloses be equipped with lubricating arrangement in the mount upper end, the liquid oil that lubricating arrangement's emollient melted is attached to last ball surface, lower ball surface, last track surface and lower track surface, forms lubricated membrane, plays the lubrication action, reduces the direct contact between ball surface and last track surface, the recess two surfaces to reduce coefficient of friction, effectively reduce the consumption of frictional resistance and power, reinforcing life.

3. The utility model discloses optimize the motor part in order to reduce the use to complicated spare part, make the fixed equipment of each part simple and convenient, practice thrift the equipment cost, effectively improve production efficiency.

Drawings

Fig. 1 is a perspective view of a prior art motor.

Fig. 2 is a perspective view of the motor of the present invention.

Fig. 3 is an exploded view of the motor of the present invention.

Fig. 4 is a perspective view of the motion assembly of the present invention.

Fig. 5 is a perspective view of the motor of the present invention.

Fig. 6 is a schematic view of the motion assembly of the present invention when the track is stationary.

Fig. 7 is a schematic view of the motion assembly moving to the right on the rail according to the present invention.

Fig. 8 is a schematic diagram of the movement assembly of the present invention moving leftward on the rail.

Fig. 9 is a perspective view of the lubricating device of the present invention.

Fig. 10 is a schematic diagram of the lubricant flowing down path according to the present invention.

Fig. 11 is a perspective view of a stator assembly according to embodiment 2 of the present invention.

Fig. 12 is a schematic view of the moving assembly of embodiment 2 of the present invention when the rail is stationary.

Fig. 13 is a schematic view of the moving assembly of embodiment 2 of the present invention moving rightward on the rail.

Fig. 14 is a schematic diagram of the movement assembly of embodiment 2 of the present invention moving leftward on the rail.

The parts in the drawings are numbered as follows: 4' -a second spring plate; 5' -a first spring plate; 6' -a second scaffold; 7' -a first scaffold; 10' -a first oscillating member; 11' -a second oscillating member; 1-a fixed mount; 11-lower fixing frame; 111-lower track; 112-lower ball; 113-track three; 114-a ball bearing; 12-upper fixing frame; 121-upper track; 2-a stator assembly; 21-a stator winding; 22- "E" shape stator silicon steel sheet; 221-a first pole face; 222-middle bump; 223-a second pole face; 3-a motion assembly; 30-a support plate; 31-a permanent magnet; 32-a magnetically permeable silicon steel body; 321-a bump; 33-groove one; 34-groove two; 341-Via two; 35-upper ball bearing; 36-groove three; 37-a swing lever; 38-concave; 4-a lubricating device; 41-oil groove; 411-Via one; 42-a lubricant; 421-lubricating oil; 43-oil cover; 51-a spring; 5-a shock-absorbing member; 52-a first damping sheet; 53-second damping plate.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Please refer to fig. 2-14;

for the sake of clarity, the term "free" means that the kinematic assembly 3 is not fixedly connected to any part. In addition, the term "offset" means that the moving component 3 moves back and forth along the direction of "O-X", moves up and down along the direction of "O-Z", moves left and right along the direction of "O-Y", and the moving component 3 can only move left and right along the direction of "O-Y" due to the limitation of the track in the utility model. Furthermore, the directional terms "O-X", "O-Y", and "O-Z" are used herein to facilitate distinguishing between the position of various components and the relative orientation of various components as indicated by the coordinate axes in FIG. 2.

In a first embodiment, as shown in fig. 2-3, fig. 2 is a perspective view of a motor, which includes a fixing frame 1, a stator assembly 2 and a moving assembly 3, a track is provided on the fixing frame 1, the moving assembly 3 is freely provided on the track, the stator assembly 2 is fixedly provided on the fixing frame 1, the stator assembly 2 includes a stator winding 21 and an "E" -shaped stator silicon steel sheet 22, a first magnetic pole surface 221, a middle protrusion 222 and a second magnetic pole surface 223 are sequentially provided at a lower end of the "E" -shaped stator silicon steel sheet 22, a lower end surface of the middle protrusion 222 is higher than a lower end surface of the first magnetic pole surface 221 and a lower end surface of the second magnetic pole surface 223, the stator winding 21 is formed by winding a coil around the middle protrusion 222, the moving assembly 3 at least includes a permanent magnet 31, when the coil is energized, the stator winding 21 generates a magnetic field, and the stator assembly 2 can drive the moving assembly 3 to make a linear reciprocating motion between the first magnetic pole surface 221 and the second magnetic pole surface 223 along an O-Y direction on the track (as shown in fig. 7 and 8).

Further, the fixing frame 1 includes a lower fixing frame 11 and 2 upper fixing frames 12, a lower rail 111 is provided on the lower fixing frame 11, at least one lower ball 112 is placed on the lower rail 111, and an upper rail 121 is provided at the lower end of the upper fixing frame 12.

As shown in fig. 4 and 5, the moving assembly 3 includes a supporting plate 30, a permanent magnet 31 and 2 magnetic conductive silicon steel bodies 32, a swing rod 37 is disposed at one end of the moving assembly 3 and can be used to drive other parts to move together, the permanent magnet 31 can maintain its unique magnetism for a long time, the polarity of the permanent magnet 31 does not change, two ends of the magnetic conductive silicon steel body 32 extend to form protrusions 321, an indent 38 is disposed on the supporting plate 30, the permanent magnet 31 is disposed in the indent 38, two magnetic conductive silicon steel bodies 32 are disposed on two sides of the permanent magnet 31 respectively, and the protrusions 321 of the magnetic conductive silicon steel bodies 32 correspond to the indent 38 and are clamped into the indent 38, so that the permanent magnet 31 and the magnetic conductive silicon steel bodies 32 can be stably fixed on the supporting plate 30.

The lower end of the support plate 30 is provided with a first groove 33, the first groove 33 corresponds to the lower ball 112, the first groove 33 is in a semicircle shape matched with the lower ball 112, when the moving assembly 3 linearly reciprocates between the first magnetic pole surface 221 and the second magnetic pole surface 223 along the O-Y direction, the lower ball 112 can roll between the first groove 33 and the lower rail 111, the upper end of the support plate 30 is provided with a second groove 34 with the same size as the first groove 33, the second groove 34 is provided with an upper ball 35, the upper ball 35 can be the same size as the lower ball 112, and can be freely selected according to requirements, wherein the same size of the upper ball 35 and the lower ball 112 is the most preferable, and the upper rail 121 corresponds to the upper ball 35, so that the upper ball 35 rolls between the second groove 34 and the upper rail 121.

The moving assembly 3 moves by the rolling of the lower ball 112 between the first groove 33 and the first rail 111 and the rolling of the upper ball 35 between the second groove 34 and the second rail 121, as long as the moving assembly 3 can move, the number of the lower ball 112, the first groove 33, the second groove 34 and the upper ball 35 is at least one or more, and in this embodiment, the number of the lower ball 112, the first groove 33, the second groove 34 and the upper ball 35 is 6. The moving assembly 3 is indirectly fixed between the lower rail 111 and the upper rail 121 through the upper ball 35 and the lower ball 112, that is, the moving assembly 3 is freely arranged on the rail to prevent the moving assembly 3 from being deviated.

As shown in fig. 6, when the motor is not energized, the moving member 3 is stationary between the first pole face 221 and the second pole face 223, the left magnetically permeable silicon steel body 32 of the permanent magnet 31 is in the S-pole state, and the right magnetically permeable silicon steel body 32 of the permanent magnet 31 is in the N-pole state.

As shown in fig. 7, alternating current is applied to the stator winding 21, when the second magnetic pole surface 223 forms S-level, the first magnetic pole surface 221 forms S-level, the lower end surface of the middle bump 222 forms N-level, the attraction moving component 3 moves to the right in the O-Y direction, as shown in fig. 8, when the first magnetic pole surface 221 forms N-level, the second magnetic pole surface 223 forms N-level, the lower end surface of the middle bump 222 forms S-level, the attraction moving component 3 moves to the left in the O-Y direction, and by the design of the stator assembly, the moving effect of the moving component 3 can reach an effective optimal state, and the swinging distance can be increased.

Since the magnetic pole direction of the moving assembly is the same as the direction of the reciprocating motion, and the first magnetic pole surface 221 and the second magnetic pole surface 223 correspond to (face to face) the magnetic poles S and N of the moving assembly, respectively, the swing distance of the moving assembly can be changed by only changing the distance between the first magnetic pole surface 221 and the second magnetic pole surface 223, thereby achieving the effect of increasing the swing distance of the moving assembly.

As shown in fig. 3, since the moving component 3 may impact the fixed frame 1 during the reciprocating motion process, which affects the service life and the firmness of the motor, the shock absorbing member 5 is disposed on the fixed frame 1, the shock absorbing member 5 includes springs 51 disposed on the lower fixed frame 12 and having a number of 4, one end of each spring 51 is disposed on the lower fixed frame 12, the other end of each spring 51 is disposed on one side of the supporting plate 30, when the moving component 3 performs the linear reciprocating motion, the springs 51 can reduce the vibration of the moving component 3, and can effectively attenuate the vibration and impact of the moving component 3 on the motor or the external device of the motor, so that the moving component 3 has a certain natural frequency, form a balanced and uniform amplitude, thereby enhancing the service life of the motor, and meanwhile, the springs 51 play a boosting role in the linear reciprocating motion of the moving component 3.

Further, the moving component 3 can transmit vibration to the periphery in the working motion state, and is buffered and borne by the spring 51 along the left and right directions of O-Y to be weakened, and the moving component 3 can also transmit vibration to the up and down directions of O-Z in the working motion state, therefore, the damping member 5 further comprises a first damping sheet 52 and four second damping sheets 53, the first damping sheet 52 is arranged on the lower end face of the lower fixing frame 11 and has the same size and shape as the lower end face of the lower fixing frame 11, and the four second damping sheets 53 are respectively arranged between the upper end of the lower fixing frame 11 and the lower end face of the upper fixing frame 11, and the first damping sheet 52 and the second damping sheets 53 are used for damping and reducing noise, so that the reciprocating swing working frequency of the whole motor is improved, and the conditions of poor use experience and the like caused by the common vibration of the devices outside the motor are prevented.

As shown in fig. 9 and 10, fig. 10 is a schematic diagram of a path where the lubricating oil 421 flows down, since during the movement of the moving assembly 3, there is rapid relative sliding between the upper ball 35 and the upper rail 121, the second groove 34, the lower ball 112 and the lower rail 111, and the first groove 33, in order to prevent excessive wear thereof, the upper end of the upper fixing frame 12 is provided with the lubricating device 4, the lubricating device 4 includes an oil groove 41, a lubricating agent 42, and an oil cover 43, the oil groove 41 is provided on the upper end surface of the upper fixing frame 12, the lubricating agent 42 is placed in the oil groove 41, the lubricating agent 42 may be an oil-immersed object such as a cotton sliver or sponge that can absorb the lubricating oil, the lubricating agent 42 can be stored in the oil groove 41 for a long time, and can be used for a long time after being added once, and can be replaced periodically, the oil cover 43 is placed above the oil groove 41 to play a role of preventing dust and fixing the lubricating agent 42 in the oil groove 41; the lower end face of the oil groove 41 is provided with a first through hole 411 which penetrates through the upper part and the lower part, the second through hole 341 which penetrates through the upper part and the lower part is arranged on the second groove 34, in the moving process of the moving assembly 3, lubricating oil flows down from the first through hole 411 and is attached to the surface of the upper ball 35, then flows to the surface of the lower ball 112 through the second through hole 341, and when the moving assembly 3 does linear reciprocating motion on the track at high frequency, the lubricating oil can be simultaneously attached to the surface of the upper ball 35, the surface of the lower ball 112, the surface of the upper track 121 and the surface of the lower track 111 to form a lubricating film, so that the lubricating effect is achieved, the direct contact between the surface of the upper ball 35 and the surfaces of the upper track 121 and the surface of the second groove 34 is reduced, the friction coefficient is reduced, and the consumption of friction resistance and power is effectively reduced.

In the second embodiment, as shown in fig. 11 to 14, the difference from the first embodiment is that the lower end surfaces of the first magnetic pole surface 221 and the second magnetic pole surface 223 of the "E" -shaped silicon steel sheet 22 and the lower end surface of the middle protrusion 222 are located on the same horizontal plane, and the moving assembly 3 can perform linear reciprocating motion directly below the first magnetic pole surface 221, the second magnetic pole surface 223 and the middle protrusion 222 of the "E" -shaped silicon steel sheet 22, so that the effect of increasing the swing distance of the moving assembly is achieved when the volume of the motor is not changed.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it will be understood by those skilled in the art that the specification as a whole and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (10)

1. A linear motor, characterized by:

comprises a fixed frame (1), wherein a track is arranged on the fixed frame (1);

the stator assembly (2) comprises a stator winding (21) and an E-shaped stator silicon steel sheet (22), wherein the lower end of the E-shaped stator silicon steel sheet (22) is sequentially provided with a first magnetic pole face (221), a middle convex block (222) and a second magnetic pole face (223), the lower end face of the middle convex block (222) is higher than the lower end face of the first magnetic pole face (221) and the lower end face of the second magnetic pole face (223), and the stator winding (21) is formed by winding the middle convex block (222);

a moving assembly (3) comprising at least a permanent magnet (31);

the stator assembly (2) is fixedly arranged on the fixed frame (1), and the moving assembly (3) is freely arranged on the track and linearly reciprocates along the track.

2. A linear motor according to claim 1, wherein: the heights of the lower end face of the first magnetic pole face (221), the lower end face of the second magnetic pole face (223) and the lower end face of the middle bump (222) of the E-shaped stator silicon steel sheet (22) are positioned on the same horizontal plane.

3. A linear motor according to claim 1 or 2, characterized in that: the fixing frame (1) comprises a lower fixing frame (11) and an upper fixing frame (12), a lower rail (111) is arranged at the upper end of the lower fixing frame (11), an upper rail (121) is arranged at the lower end of the upper fixing frame (12), the lower rail (111) and the upper rail (121) are arranged along the O-Y direction, and the moving assembly (3) reciprocates along the lower rail (111) and the upper rail (121).

4. A linear motor according to claim 3, wherein: the moving assembly (3) comprises a supporting plate (30), a permanent magnet (31) is arranged on the supporting plate (30), magnetic conductive silicon steel bodies (32) are arranged on the left side and the right side of the permanent magnet (31), an inner concave part (38) is arranged on the supporting plate (30), two end parts of each magnetic conductive silicon steel body (32) extend to form protrusions (321), and the magnetic conductive silicon steel bodies (32) are arranged on the two sides of the permanent magnet (31).

5. A linear motor according to claim 4, wherein: be equipped with at least one down ball (112) on lower track (111), motion subassembly (3) lower extreme is equipped with recess one (33) that corresponds with ball position down, motion subassembly (3) upper end is equipped with recess two (34), recess two (34) top is equipped with ball (35), rolls at lower track (111) and last track (121) through ball (35) and lower ball (112) and drives motion subassembly (3) and do straight reciprocating motion.

6. A linear motor according to claim 5, wherein: and one end of the motion component (3) is provided with a swing rod (37).

7. A linear motor according to claim 6, wherein: establish lubricating arrangement (4) on upper mounting bracket (12), lubricating arrangement (4) are including establishing oil groove (41) in upper mounting bracket (12) upper end, placed emollient (42) in oil groove (41), emollient (42) are the oily thing of the silver or the sponge that can absorb lubricating oil (421), oil groove (41) top is equipped with oil cover (43).

8. A linear motor according to claim 7, wherein: the lower end face of the oil groove (41) is provided with a first through hole (411) which penetrates through the oil groove from top to bottom, and a second through hole (341) which penetrates through the oil groove from top to bottom is formed in the second groove (34).

9. A linear motor according to claim 8, wherein: the lower fixing frame (11) is provided with a damping piece (5), and the damping piece (5) comprises a spring (51), a first damping sheet (52) and a second damping sheet (53).

10. A trimmer, characterized by: use of a linear motor according to any one of claims 1 to 9.

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