Linear motor

Abstract

The utility model provides a linear motor comprising a frame, the top of the frame is provided with a rotor, the inner wall of the frame is fixedly connected with a stator used in cooperation with the rotor, the two sides of the rotor are fixedly connected with two mounting racks, the mounting racks are internally provided with mounting grooves, the mounting grooves are internally provided with replacement mechanisms, and the replacement mechanisms are fixedly connected with the rotor. A sliding mechanism is arranged at the bottom of the mounting frame; and the sliding mechanism comprises a connecting block arranged at the bottom of the mounting frame. The utility model relates to the technical field of linear motors. The sliding mode of the rotor is changed into a rolling mode by arranging the sliding mechanism, so that friction is effectively reduced, the noise reduction effect is achieved, meanwhile, the stability of the rotor in the moving process can be improved, meanwhile, the replacement mechanism is arranged to replace the driving pulley and the driven pulley when the driving pulley and the driven pulley are damaged, and the working efficiency is improved. Therefore, the problems that a large amount of noise is generated and the stability is poor due to mutual friction between the sliding block and the sliding groove in the rotor sliding process are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of linear motor, concretely is a linear motor. BACKGROUND

[0002] Linear motor is a kind of transmission device that directly converts electric energy into linear motion mechanical energy without any intermediate conversion mechanism.It can be regarded as a rotating motor according to radial section, and is developed into plane.The linear motor is also called linear motor, linear motor, linear motor and push rod motor.The most commonly used linear motor type is flat type, U-shaped groove type and pipe type.

[0003] The linear motor provided in the publication "CN211063515U" includes two parallel slide tracks, a set of primary modules is fixed to the inner side of each slide track, a linear sliding member is arranged between the two slide tracks, two sets of secondary modules are fixed to the outer side of the linear sliding member and opposite to the two sets of primary modules, the gap between the two sets of opposite secondary modules and the primary modules is equal, and the gap between the secondary modules and the primary modules is adjustable.The linear motor has the adjustable gap feature, can adjust the motor air gap width according to specific use requirements, thereby realizing wide-range adjustment of the motor thrust, has the modularization feature, is divided into primary modules, secondary modules, a linear sliding member and slide tracks as a whole, the air gap can be easily adjusted by the adjusting mechanism on the linear sliding member, and the linear motor is convenient to maintain, repair, disassemble and assemble.

[0004] However, the above-mentioned device still has the following problems in the implementation process:

[0005] The existing linear motor drives the mover to slide linearly by the principle of magnetic repulsion, and a large amount of noise is generated by the mutual friction between the sliding block and the sliding groove during the sliding process, and the wear is also relatively serious, which is easy to damage, thereby affecting the stability of the linear motor transmission process.

[0006] To solve the above problems, the linear motor is provided. UTILITY MODEL CONTENTS

[0007] The utility model aims at providing a linear motor to solve the problems in the above background technology.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0009] A linear motor includes a frame, a mover is arranged on the top of the frame, a stator is fixedly connected to the inner wall of the frame and cooperates with the mover, two mounting frames are fixedly connected to the two sides of the mover, a mounting groove is arranged in the mounting frame, a replacement mechanism is arranged in the mounting groove, and a sliding mechanism is arranged at the bottom of the mounting frame.

[0010] The sliding mechanism comprises a connecting block arranged at the bottom of the mounting frame, one side of the connecting block is provided with a mute bearing, one side of the connecting block is rotationally connected with a driving pulley through the mute bearing, both sides of the frame are provided with first sliding grooves matched with the driving pulley, one side of the driving pulley is fixedly connected with a driven pulley, the inner wall of the first sliding groove is provided with a second sliding groove matched with the driven pulley, and the top of the connecting block is fixedly connected with a T-shaped block.

[0011] Preferably, the replacement mechanism comprises a transmission block arranged in the mounting groove, the bottom of the transmission block is fixedly connected with a movable block, the bottom of the movable block is fixedly connected with two positioning rods, the bottom of the positioning rod penetrates into the inside of the T-shaped groove, the top of the T-shaped block is provided with a positioning hole matched with the positioning rod, one side of the transmission block is provided with a transmission disc, one side of the transmission disc is fixedly connected with a traction rod, the other side of the transmission disc is fixedly connected with a transmission rod, and one side of the transmission block is provided with a transmission groove matched with the transmission rod.

[0012] Preferably, the surface of the traction rod is sleeved with a torsion spring, one end of the torsion spring is fixedly connected with one side of the transmission disc, and the other end of the torsion spring is fixedly connected with the inner wall of the shell.

[0013] Preferably, one end of the traction rod penetrates into one side of the mounting frame and is fixedly connected with a screwing block, and two screwing grooves are symmetrically arranged on the circumferential side of the screwing block.

[0014] Preferably, the surface of the traction rod is sleeved with a limiting bearing, and one side of the screwing block is rotationally connected with one side of the mounting frame through the limiting bearing.

[0015] Preferably, the surface of the driving pulley and the driven pulley is fixedly connected with a sound insulation ring, and the sound insulation ring is made of rubber.

[0016] Preferably, the two sides of the driving pulley are in the form of slopes.

[0017] Compared with the prior art, the utility model has the advantages that:

[0018] 1、The utility model discloses a sliding mechanism can drive the mounting frame to move when the mover moves linearly, the connecting block moves synchronously with the mounting frame, and simultaneously drives the driving pulley and the driven pulley to roll around the rotating shaft in the first sliding groove and the second sliding groove respectively, changes the sliding mode of the mover to rolling, thereby effectively reducing the friction, achieving the effect of noise reduction, and improving the stability during the movement of the rotor.

[0019] 2, the utility model discloses through setting replacement mechanism, can pass through the rotation of screwing piece, drive the rotation of traction rod and transmission disc around limit bearing, and transmission rod will along with transmission disc synchronous rotation, when transmission rod rotates, its surface will extrude transmission block, because transmission block and movable block are limited by the inner wall of mounting groove, therefore can only move upwards along mounting groove, and movable block will take positioning rod upwards and remove, make positioning rod leave the inside of positioning hole, at this moment, can push the connecting block to one side, make T -shaped block leave T -shaped groove inside, can dismantle driving pulley and driven pulley, then take out new driving pulley and driven pulley, align the track of T -shaped block and T -shaped groove, push T -shaped block into T -shaped groove inside, then loosen screwing piece, and the torsion of torsion spring will drive transmission disc and transmission rod reverse rotation, contrary to the above-mentioned step, make positioning rod finally enter the inside of positioning hole, complete the restriction of T -shaped block, and further complete the replacement of driving pulley and driven pulley.

[0020] The utility model discloses through setting up sliding mechanism and changing the mode of the sliding of rotor to rolling, thereby effectively reducing the friction, reaching the effect of noise reduction, and can improve the stability in the moving process of rotor, and setting up replacement mechanism can replace driving pulley and driven pulley when they are damaged, thereby solving the problem of a large amount of noise and poor stability caused by the mutual friction of sliding block and sliding slot in the sliding process of rotor. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the schematic diagram of the main body structure of the utility model;

[0022] Figure 2 It is the utility model Figure 1 It is the partial close -up view of A place in the utility model;

[0023] Figure 3 It is the perspective drawing of the rotor of the utility model;

[0024] Figure 4 It is the perspective drawing of driving pulley and driven pulley of the utility model;

[0025] Figure 5 It is the perspective drawing of the mounting frame of the utility model;

[0026] Figure 6 It is the schematic diagram of the replacement mechanism of the utility model.

[0027] In the figure: 1, frame; 2, mover; 3, stator; 4, mounting frame; 5, mounting slot; 6, connecting block; 7, silent bearing; 8, driving pulley; 9, first sliding slot; 10, driven pulley; 11, second sliding slot; 12, T-shaped block; 13, T-shaped slot; 14, transmission block; 15, movable block; 16, positioning rod; 17, positioning hole; 18, transmission disc; 19, traction rod; 20, transmission rod; 21, transmission slot; 22, torsion spring; 23, twisting block; 24, twisting slot; 25, limiting bearing; 26, sound insulation ring. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0029] Please refer to Figure 1 Figure 6 The utility model provides a technical scheme:

[0030] Embodiment one:

[0031] A linear motor, including frame 1, the top of frame 1 is provided with mover 2, the inner wall of frame 1 is fixedly connected with stator 3 used in cooperation with mover 2, two mounting frames 4 are fixedly connected to the both sides of mover 2, mounting slot 5 is arranged in the inside of mounting frame 4, replacement mechanism is arranged in the inside of mounting slot 5, and sliding mechanism is arranged in the bottom of mounting frame 4;

[0032] The sliding mechanism includes connecting block 6 arranged in the bottom of mounting frame 4, silent bearing 7 is arranged on the side of connecting block 6, driving pulley 8 is rotatably connected to the side of connecting block 6 through silent bearing 7, first sliding slot 9 used in cooperation with driving pulley 8 is formed in the both sides of frame 1, driven pulley 10 is fixedly connected to the side of driving pulley 8, second sliding slot 11 used in cooperation with driven pulley 10 is formed in the inner wall of first sliding slot 9, T-shaped block 12 is fixedly connected to the top of connecting block 6, and T-shaped slot 13 used in cooperation with T-shaped block 12 is formed in the side of mounting frame 4.

[0033] ​In this embodiment, considering that the linear motor drives the mover 2 to slide linearly by the principle of mutual repulsion by magnetic force, the friction between the slider and the sliding groove during the sliding process will generate a large amount of noise, and the wear is also relatively serious, which is easy to damage, thereby affecting the stability during the transmission process of the linear motor. Therefore, by arranging the sliding mechanism, the mounting frame 4 can be moved when the mover 2 moves linearly, the connecting block 6 moves synchronously with the mounting frame 4, and at the same time, the driving pulley 8 and the driven pulley 10 roll around the rotating shaft in the first sliding groove 9 and the second sliding groove 11, respectively. The sliding mode of the mover 2 is changed to rolling, thereby effectively reducing the friction and achieving the effect of noise reduction, and the stability during the movement of the rotor can be improved.

[0034] It should be noted that the specific movement principle of the mover 2 is well known, and thus will not be described again.

[0035] The surfaces of the driving pulley 8 and the driven pulley 10 are fixedly connected with sound insulation rings 26, and the material of the sound insulation rings 26 is rubber.

[0036] In this embodiment, by arranging the sound insulation rings 26, the noise generated by the rolling of the driving pulley 8 and the driven pulley 10 can be reduced, thereby achieving the effect of noise reduction, and also playing a role in wear resistance, reducing the wear of the driving pulley 8 and the driven pulley 10.

[0037] The two sides of the driving pulley 8 are inclined.

[0038] In this embodiment, by arranging the driving pulley 8, the contact surface between the driving pulley 8 and the first sliding groove 9 can be reduced by designing the two sides of the driving pulley 8 to be inclined, thereby further reducing the generation of noise.

[0039] Embodiment two:

[0040] On the basis of embodiment one, the sliding mechanism in this embodiment can change the sliding mode of the mover 2 to rolling, thereby playing a role in improving the stability of movement. However, considering that the driving pulley 8 and the driven pulley 10 will be worn after a long time of use, if not replaced in time, it will also affect the stability of the mover 2. The replacement mechanism in this application includes a transmission block 14 arranged in the mounting groove 5, the bottom of the transmission block 14 is fixedly connected with a movable block 15, the bottom of the movable block 15 is fixedly connected with two positioning rods 16, the bottom of the positioning rod 16 penetrates into the inside of the T-shaped groove 13, the top of the T-shaped block 12 is provided with a positioning hole 17 matched with the positioning rod 16, one side of the transmission block 14 is provided with a transmission disc 18, one side of the transmission disc 18 is fixedly connected with a traction rod 19, the other side of the transmission disc 18 is fixedly connected with a transmission rod 20, and one side of the transmission block 14 is provided with a transmission groove 21 matched with the transmission rod 20.

[0041] In this embodiment, by setting the replacement mechanism, the traction rod 19 and the transmission disc 18 can be driven to rotate around the limiting bearing 25 by rotating the twisting block 23, and the transmission rod 20 can be synchronously rotated with the transmission disc 18. When the transmission rod 20 rotates, the surface of the transmission rod 20 can extrude the transmission block 14. Since the transmission block 14 and the movable block 15 are limited by the inner wall of the mounting groove 5, they can only move upwards along the mounting groove 5. At the same time, the movable block 15 can drive the positioning rod 16 to move upwards, so that the positioning rod 16 moves away from the inside of the positioning hole 17. At this time, the connecting block 6 can be pushed to one side, so that the T-shaped block 12 moves away from the inside of the T-shaped groove 13. The driving pulley 8 and the driven pulley 10 can be disassembled. Then, the new driving pulley 8 and the driven pulley 10 are taken out, aligned with the trajectory of the T-shaped block 12 and the T-shaped groove 13, and the T-shaped block 12 is pushed into the T-shaped groove 13. Then, the twisting block 23 is loosened, and the torsion of the torsion spring 22 drives the transmission disc 18 and the transmission rod 20 to rotate in the opposite direction. The above steps are opposite, so that the positioning rod 16 finally enters the inside of the positioning hole 17, the limitation of the T-shaped block 12 is completed, and the replacement of the driving pulley 8 and the driven pulley 10 is completed.

[0042] The surface of the traction rod 19 is sleeved with a torsion spring 22. One end of the torsion spring 22 is fixedly connected with one side of the transmission disc 18, and the other end of the torsion spring 22 is fixedly connected with the inner wall of the shell.

[0043] In this embodiment, by setting the torsion spring 22, the twisting block 23 can be loosened, and the torsion of the torsion spring 22 drives the transmission disc 18 and the transmission rod 20 to rotate in the opposite direction. The positioning rod 16 finally enters the inside of the positioning hole 17, and plays a resetting role.

[0044] One end of the traction rod 19 penetrates through one side of the mounting frame 4 and is fixedly connected with the twisting block 23. Two twisting grooves 24 are symmetrically formed in the circumferential side of the twisting block 23.

[0045] In this embodiment, by setting the twisting block 23 and the twisting groove 24, a grabbing leverage point can be provided for driving the traction rod 19, so that the user can easily rotate the traction rod 19.

[0046] The surface of the traction rod 19 is sleeved with a limiting bearing 25. One side of the twisting block 23 is rotatably connected with one side of the mounting frame 4 through the limiting bearing 25.

[0047] In this embodiment, by setting the limiting bearing 25, the traction rod 19, the transmission disc 18 and the twisting block 23 can be supported, and they can only rotate around the limiting bearing 25.

[0048] Working principle: when the mover 2 moves linearly, the mounting frame 4 is moved, the connecting block 6 moves synchronously with the mounting frame 4, at the same time, the driving pulley 8 and the driven pulley 10 respectively roll around the rotating shaft inside the first sliding groove 9 and the second sliding groove 11, the sliding mode of the mover 2 is changed into rolling, thereby effectively reducing the friction, achieving the effect of noise reduction, and improving the stability during the movement of the rotor;

[0049] When the driving pulley 8 and the driven pulley 10 are damaged, the twisting block 23 is rotated, the traction rod 19 and the transmission disc 18 are rotated around the limiting bearing 25, the transmission rod 20 is synchronously rotated with the transmission disc 18, when the transmission rod 20 rotates, the surface of the transmission rod 20 extrudes the transmission block 14, since the transmission block 14 and the movable block 15 are limited by the inner wall of the mounting groove 5, only the mounting groove 5 can be moved upwards, at the same time, the movable block 15 moves upwards with the positioning rod 16, the positioning rod 16 moves out of the inside of the positioning hole 17, at this time, the connecting block 6 can be pushed to one side, the T-shaped block 12 moves out of the inside of the T-shaped groove 13, the driving pulley 8 and the driven pulley 10 can be disassembled, then the new driving pulley 8 and the driven pulley 10 are taken out, the T-shaped block 12 is pushed into the inside of the T-shaped groove 13, then the twisting block 23 is loosened, the torsion of the torsion spring 22 drives the transmission disc 18 and the transmission rod 20 to rotate reversely, which is contrary to the above steps, so that the positioning rod 16 finally enters the inside of the positioning hole 17, the limitation of the T-shaped block 12 is completed, and the replacement of the driving pulley 8 and the driven pulley 10 is completed.

[0050] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A linear motor, comprising a frame (1), wherein a mover (2) is disposed on the top of the frame (1), and a stator (3) for cooperating with the mover (2) is fixedly connected to the inner wall of the frame (1), characterized in that: Two mounting brackets (4) are fixedly connected to both sides of the moving part (2). The mounting bracket (4) has a mounting groove (5) inside. The mounting groove (5) has a replacement mechanism inside. The bottom of the mounting bracket (4) has a sliding mechanism. The sliding mechanism includes a connecting block (6) located at the bottom of the mounting frame (4). A silent bearing (7) is provided on one side of the connecting block (6). An active pulley (8) is rotatably connected to one side of the connecting block (6) via the silent bearing (7). A first sliding groove (9) is provided on both sides of the frame (1) to cooperate with the active pulley (8). A driven pulley (10) is fixedly connected to one side of the active pulley (8). A second sliding groove (11) is provided on the inner wall of the first sliding groove (9) to cooperate with the driven pulley (10). A T-shaped block (12) is fixedly connected to the top of the connecting block (6). A T-shaped groove (13) is provided on one side of the mounting frame (4) to cooperate with the T-shaped block (12).

2. A linear motor according to claim 1, characterized in that: The replacement mechanism includes a transmission block (14) disposed inside the mounting slot (5). A movable block (15) is fixedly connected to the bottom of the transmission block (14). Two positioning rods (16) are fixedly connected to the bottom of the movable block (15). The bottom of the positioning rods (16) extends through the interior of the T-shaped slot (13). A positioning hole (17) is provided on the top of the T-shaped block (12) to cooperate with the positioning rods (16). A transmission disc (18) is provided on one side of the transmission block (14). A traction rod (19) is fixedly connected to one side of the transmission disc (18). A transmission rod (20) is fixedly connected to the other side of the transmission disc (18). A transmission groove (21) is provided on one side of the transmission block (14) to cooperate with the transmission rod (20).

3. A linear motor according to claim 2, characterized in that: A torsion spring (22) is fitted on the surface of the traction rod (19). One end of the torsion spring (22) is fixedly connected to one side of the transmission disc (18), and the other end of the torsion spring (22) is fixedly connected to the inner wall of the housing.

4. A linear motor according to claim 2, characterized in that: One end of the traction rod (19) extends through to one side of the mounting frame (4) and is fixedly connected to a screwing block (23). Two screwing grooves (24) are symmetrically opened on the circumferential side of the screwing block (23).

5. A linear motor according to claim 4, characterized in that: The surface of the traction rod (19) is fitted with a limiting bearing (25), and one side of the twisting block (23) is rotatably connected to one side of the mounting bracket (4) through the limiting bearing (25).

6. A linear motor according to claim 1, characterized in that: The surfaces of both the active pulley (8) and the driven pulley (10) are fixedly connected with sound-insulating rings (26), and the sound-insulating rings (26) are made of rubber.

7. A linear motor according to claim 6, characterized in that: Both sides of the active pulley (8) are sloped.

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