A transmission-stable space-compact linear motor

Abstract

The utility model relates to a kind of transmission stable space compact linear motor, including support, two movers and a stator;Support has inner cavity, stator and two movers are installed on support;Two movers are connected by lever linkage;Each mover has mover seat, transmission rod and spring support, one end of transmission rod is installed on mover seat, spring support is installed on the other end of transmission rod, spring support and mover seat are parallel and interval and set in the both ends of transmission rod, and there is space between spring support and mover seat;Lever linkage is located in the space, and the both ends of lever linkage are respectively movably connected with two mover seats.The utility model's spring support, mover seat and transmission rod form the "work" type structure, so that spring support and mover seat are isolated larger and used for installing the space of lever linkage;And multiple lever linkages can be simultaneously arranged in the space, so that the operation effect of motor is more stable.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and in particular discloses a linear motor with stable transmission and compact space. Background Technology

[0002] Linear motors are widely used in precision drive applications due to their simple structure and fast response. When a single-driver linear motor operates, the electromagnetic force between the stator and mover generates a radial magnetic pull perpendicular to the direction of motion, leading to vibration and frictional losses. A linear motor with a symmetrical arrangement of two movers can generate opposite symmetrical magnetic fields, causing the radial forces to cancel each other out and improving motion smoothness. To achieve synchronous motion of the two movers in a dual-driver linear motor, independent drive or mechanical hard-connection schemes are commonly used. Independent drive schemes require two independent drive systems, resulting in complex control and low space utilization. While mechanical hard-connection simplifies control, it suffers from poor transmission stability and reduced motion smoothness. Therefore, it is necessary to research a space-compact and smoothly operating dual-driver linear motor. Utility Model Content

[0003] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this utility model is to provide a linear motor with stable transmission and compact space.

[0004] To achieve the above objectives, this utility model provides a linear motor with stable transmission and compact space, comprising a bracket, two movers, and a stator. The bracket has an inner cavity, the stator is fixedly installed at one end of the bracket, and the two movers are movably disposed at the other end of the bracket, connected by a lever linkage. Each mover has a mover seat, a transmission rod, and a spring support. One end of the transmission rod is mounted on the mover seat, and the spring support is mounted on the other end of the transmission rod. The spring support and the mover seat are parallel and spaced apart at both ends of the transmission rod, with an accommodating space between the spring support and the mover seat. The lever linkage is located within the accommodating space, and both ends of the lever linkage are movably connected to the mover seats of the two movers, respectively.

[0005] Furthermore, the moving base is provided with a limiting hole in the middle, and the transmission rod passes through the limiting hole and is installed on the moving base. The moving base, the spring support and the transmission rod together form an "I" shaped structure, and at least one transmission rod protrudes out of the bracket to trigger external functional components.

[0006] Furthermore, there are multiple lever linkage components, which are arranged along the length of the moving part.

[0007] Furthermore, the middle part of the lever linkage is rotatably mounted on the bracket via a first pin, and the two ends of the lever linkage are respectively movably mounted on two moving seats via second pins.

[0008] Furthermore, the bracket has an inner cavity and a mounting platform protruding into the inner cavity. The moving part, the transmission rod, and the spring support are located in the inner cavity. The mounting platform has a first hole, and the lever linkage has a first insertion hole in the middle. The two ends of the first pin are respectively inserted into the first hole and the first insertion hole. Both moving parts have clearance holes, and the two ends of the lever linkage have second insertion holes. The length of the clearance hole is greater than the shaft diameter of the second pin. One end of the second pin rotates and slides in the clearance hole, and the other end of the second pin is inserted into the second insertion hole.

[0009] Furthermore, the clearance hole is oblong, used to limit the axial displacement of the second pin.

[0010] Furthermore, a spring is installed on each of the left and right sides of the spring support. The spring support has a body and first limiting posts protruding from both ends of the body. The bracket is provided with a second limiting post that cooperates with the first limiting post. One end of the spring is sleeved on the first limiting post, and the other end of the spring is sleeved on the second limiting post. The spring support is movably mounted on the bracket via the springs on the left and right sides.

[0011] Furthermore, the spring support has a mounting hole, and the transmission rod has an adhesive groove. The spring support is sleeved onto the transmission rod through the mounting hole, and the spring support is fixedly connected to the transmission rod by adhesive coated in the adhesive groove.

[0012] Furthermore, the mover also has a connecting member and an elastic member; the mover seat is mounted on the connecting member, and the connecting member is movably mounted on the bracket via the elastic member.

[0013] Furthermore, the connector is also provided with a magnetic yoke, and the magnetic yoke and the moving base are respectively installed on both sides of the connector. The moving base, the connector and the magnetic yoke are fixedly connected by fasteners; two permanent magnets are also installed on the magnetic yoke.

[0014] The beneficial effects of this utility model are as follows: By placing the spring support and the moving seat at the two ends of the transmission rod respectively, the spring support, the moving seat and the transmission rod form an "I"-shaped structure, which creates a large accommodating space between the spring support and the moving seat, providing ample space for the installation and movement of the lever linkage component; and the lever linkage component can be set on the left side, the right side, or both sides of the transmission rod, making the motor operation more stable. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a linear motor with stable transmission and compact space according to the present invention;

[0016] Figure 2 This is a partial structural schematic diagram of the present invention;

[0017] Figure 3This is a partial structural schematic diagram of the present invention;

[0018] Figure 4 This is a partial disassembly diagram of the present invention;

[0019] Figure 5 This is a partial disassembly diagram of the present invention;

[0020] Figure 6 This is a partial structural schematic diagram of the bracket of this utility model;

[0021] Figure 7 This is a schematic diagram of the moving seat of this utility model.

[0022] The reference numerals in the attached drawings include: 1. bracket; 11. mounting platform; 111. first hole; 112. first pin; 12. second limiting post; 2. stator; 3. lever linkage; 31. first insertion hole; 32. second insertion hole; 4. mover seat; 41. limiting hole; 42. clearance hole; 43. second pin; 44. first positioning protrusion; 45. second positioning protrusion; 46. second screw hole; 47. screw; 5. transmission rod; 51. adhesive groove; 6. spring support; 61. first limiting post; 62. mounting hole; 7. connector; 71. first positioning hole; 72. second positioning hole; 73. first fixing hole; 74. first screw hole; 8. elastic element; 9. magnetic yoke; 91. permanent magnet; 92. third positioning hole; 93. second fixing hole; 94. third screw hole. Detailed Implementation

[0023] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0024] Example 1:

[0025] Please see Figures 1 to 7 As shown, this utility model discloses a linear motor with stable transmission and compact space, including a bracket 1, two movers and a stator 2. The bracket 1 has an inner cavity, the stator 2 is fixedly installed at one end of the bracket 1, and the two movers are movably disposed at the other end of the bracket 1. The two movers are connected and moved by a lever linkage 3. Each mover has a mover seat 4, a transmission rod 5 and a spring support 6. One end of the transmission rod 5 is installed on the mover seat 4, and the spring support 6 is installed at the other end of the transmission rod 5. The spring support 6 and the mover seat 4 are parallel and spaced apart at both ends of the transmission rod 5, and there is an accommodating space between the spring support 6 and the mover seat 4. The lever linkage 3 is located in the accommodating space, and both ends of the lever linkage 3 are movably connected to the mover seats 4 of the two movers respectively.

[0026] In actual use, the bracket 1 has a first body and a second body, which together form an inner cavity. The stator 2 is mounted on one end of the bracket 1 via the stator 2 bracket. The mover seat 4 is mounted on the connector 7, which is mounted on the bracket 1 via the elastic member 8. The mover seat 4 and the stator 2 are located on opposite sides of the connector 7.

[0027] Specifically, the moving base 4 has a limiting hole 41 in the middle, and the transmission rod 5 is installed on the moving base 4 through the limiting hole 41. The moving base 4, the spring support 6 and the transmission rod 5 together form an "I" shaped structure. At least one transmission rod 5 protrudes out of the bracket 1 to trigger external functional components.

[0028] In actual use, the limiting hole 41 has a limiting shoulder, and the limiting hole 41 and the transmission rod 5 have a clearance fit. The two movers have the same structural layout. One transmission rod protrudes from the bracket.

[0029] Specifically, there are multiple lever linkage components 3, which are arranged along the length of the moving base 4.

[0030] In actual use, the two lever linkages 3 are set in parallel and simultaneously located on the left or right side of the transmission rod 5.

[0031] Specifically, the middle part of the lever linkage 3 is rotatably mounted on the bracket 1 via the first pin 112, and the two ends of the lever linkage 3 are respectively movably mounted on the two moving seats 4 via the second pin 43.

[0032] Specifically, the bracket 1 has an inner cavity and a mounting platform 11 protruding into the inner cavity. The movable seat 4, the transmission rod 5 and the spring support 6 are located in the inner cavity. The mounting platform 11 is provided with a first hole 111. The lever linkage 3 is provided with a first insertion hole 31 in the middle. The two ends of the first pin 112 are respectively inserted into the first hole 111 and the first insertion hole 31. The two movable seats are each provided with a clearance hole 42. The two ends of the lever linkage 3 are respectively provided with a second insertion hole 32. The length of the clearance hole 42 is greater than the shaft diameter of the second pin 43. One end of the second pin 43 rotates and slides to be accommodated in the clearance hole 42, and the other end of the second pin 43 is inserted into the second insertion hole 32.

[0033] In actual use, there are two mounting platforms 11, which protrude from both ends of the inner cavity wall of the first body. Each mounting platform 11 has two first holes 111, meaning that each mounting platform 11 can install two lever linkages 3. Each moving base 4 has four clearance holes 42, which are distributed in pairs at both ends of the moving base 4. The two lever linkages 3 are simultaneously installed on the two clearance holes 42 at one end of the moving base 4. The pins inserted into the first insertion hole 31 and the second insertion hole 32 do not protrude from the lever linkages 3.

[0034] Specifically, the clearance hole 42 is oblong and is used to limit the axial displacement of the second pin 43.

[0035] In actual use, the two moving seats 4 are arranged in parallel, the lever linkage 3 spans the two moving seats 4 and is perpendicular to the two moving seats 4, the clearance hole 42 also has a protruding limiting shoulder, and the long axis of the elongated oval extends in the same direction as the length extension direction of the lever linkage 3.

[0036] Specifically, a spring is installed on each of the left and right sides of the spring support 6. The spring support 6 has a body and a first limiting post 61 protruding from both ends of the body. A second limiting post 12 protruding from the bracket 1 cooperates with the first limiting post 61. One end of the spring is sleeved on the first limiting post 61, and the other end of the spring is sleeved on the second limiting post 12. The spring support 6 is movably mounted on the bracket 1 via the springs on the left and right sides.

[0037] In actual use, both ends of the first body and the second body are provided with second limiting posts 12. The two ends of the spring abut against the inner wall of the spring support 6 and the bracket 1, respectively.

[0038] Specifically, the spring support 6 has a mounting hole 62, and the transmission rod 5 has an adhesive groove 51. The spring support 6 is sleeved on the transmission rod 5 through the mounting hole 62, and the spring support 6 is fixedly connected to the transmission rod 5 through adhesive coated in the adhesive groove 51.

[0039] In actual use, the spring support 6 passes through the transmission rod 5 via the mounting hole 62. The transmission rod 5 has a mesh-like adhesive groove 51. The spring support 6 is installed at the adhesive groove 51 of the transmission rod 5. The mesh-like adhesive groove 51 forms an uneven surface and can increase friction.

[0040] Specifically, the mover also has a connector 7 and an elastic element 8; the mover seat 4 is mounted on the connector 7, and the connector 7 is movably mounted on the bracket 1 via the elastic element 8.

[0041] In actual use, the connector 7 has a first fixing hole 73 in the middle, and a first positioning hole 71 and a second positioning hole 72 are provided at both ends of the first fixing hole 73. The second positioning hole 72 is closer to the first fixing hole 73, and the first positioning hole 71 is farther away from the first fixing hole 73. A first screw hole 74 is also provided between the first positioning hole 71 and the second positioning hole 72. The moving base 4 has a limiting hole 41 in the middle, and a first positioning protrusion 44 and a second positioning protrusion 45 are provided at both ends of the limiting hole 41. The first positioning protrusion 44... The automatic sub-base 4 protrudes from the side of the main body of the second positioning protrusion 45 towards the connector 7. A second screw hole 46 is also provided between the first positioning protrusion 44 and the second positioning protrusion 45, and the first screw hole 74 communicates with the second screw hole 46. When the automatic sub-base 4 is connected to the connector 7, the first positioning protrusion 44 connects to the first positioning hole 71, and the second positioning protrusion 45 connects to the second positioning hole 72. The connection between the automatic sub-base 4 and the connector 7 is then reinforced by screws 47 passing sequentially through the second screw hole 46 and the first screw hole 74. The first fixing hole 73 communicates with the limiting hole 41, and the transmission rod 5 passes sequentially through the first fixing hole 73 and the limiting hole 41.

[0042] Specifically, the connector 7 is also provided with a magnetic yoke 9, and the magnetic yoke 9 and the moving base 4 are respectively installed on both sides of the connector 7. The moving base 4, the connector 7 and the magnetic yoke 9 are fixedly connected by fasteners; two permanent magnets 91 are also installed on the side of the magnetic yoke 9 away from the connector 7.

[0043] In actual use, the magnetic yoke 9 has a second fixing hole 93 in the middle. Both ends of the second fixing hole 93 are provided with a third positioning hole 92 and a third screw hole 94. The third positioning hole 92 is closer to the second fixing hole 93, and the third screw hole 94 is farther from the second fixing hole 93. The third positioning hole 92 communicates with the second positioning hole 72 on the connector 7, and the third screw hole 94 communicates with the second screw hole 46 and the first screw hole 74. When the moving base 4, connector 7, and magnetic yoke 9 are installed sequentially, the second positioning protrusion 45 on the moving base 4 first passes through the second positioning hole 72 of the connector 7, and then inserts into the third positioning hole 92 of the magnetic yoke 9. In this embodiment, the fastener is a screw 47, and the moving base 4, connector 7, and magnetic yoke 9 are reinforced and connected by the screw 47. The second fixing hole 93 of the magnetic yoke 9 is connected to the first fixing hole 73 on the connector 7 and the limiting hole 41 on the mover seat 4. The transmission rod 5 passes through the second fixing hole 93 on the magnetic yoke 9, the first fixing hole 73 on the connector 7, and the limiting hole 41 on the mover seat 4 in sequence. In this embodiment, two permanent magnets 91 are installed on the end of each magnetic yoke 9 facing the stator 2.

[0044] Example 2:

[0045] The difference between this embodiment and embodiment 1 is that in this embodiment, there are four lever linkage components 3, and the four lever linkage components 3 are arranged in pairs on both sides of the transmission rod 5.

[0046] The rest of this embodiment is the same as that of Embodiment 1. Features not explained in this embodiment are explained using the methods of Embodiment 1, and will not be repeated here.

[0047] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A linear motor with stable transmission and compact space, characterized in that: It includes a bracket (1), two movers and a stator (2); the stator (2) is fixedly installed at one end of the bracket (1), and the two movers are movably installed at the other end of the bracket (1). The two movers are connected by a lever linkage (3); each mover has a mover seat (4), a transmission rod (5) and a spring support (6). One end of the transmission rod (5) is installed on the mover seat (4), and the spring support (6) is installed at the other end of the transmission rod (5). The spring support (6) and the mover seat (4) are parallel and spaced apart at both ends of the transmission rod (5). There is a space between the spring support (6) and the mover seat (4); the lever linkage (3) is located in the space, and both ends of the lever linkage (3) are movably connected to the mover seats (4) of the two movers respectively.

2. The linear motor with stable transmission and compact space according to claim 1, characterized in that: The moving base (4) is provided with a limiting hole (41) in the middle. The transmission rod (5) passes through the limiting hole (41) and is installed on the moving base (4). The moving base (4), the spring support (6) and the transmission rod (5) form an "I" shaped structure. At least one transmission rod (5) protrudes out of the bracket (1) to trigger external functional components.

3. The linear motor with stable transmission and compact space according to claim 1, characterized in that: The number of lever linkage components (3) is multiple, and the multiple lever linkage components (3) are arranged along the length direction of the moving seat (4).

4. A linear motor with stable transmission and compact space according to claim 1, characterized in that: The middle part of the lever linkage (3) is rotatably mounted on the bracket (1) via the first pin (112), and the two ends of the lever linkage (3) are movably mounted on the two moving seats (4) via the second pin (43).

5. A linear motor with stable transmission and compact space according to claim 4, characterized in that: The bracket (1) has an inner cavity and a mounting platform (11) protruding into the inner cavity. The moving seat (4), transmission rod (5) and spring support (6) are located in the inner cavity. The mounting platform (11) is provided with a first hole (111). The lever linkage (3) is provided with a first insertion hole (31) in the middle. The two ends of the first pin (112) are respectively inserted into the first hole (111) and the first insertion hole (31). The two moving seats (4) are provided with relief holes (42). The two ends of the lever linkage (3) are respectively provided with second insertion holes (32). The length of the relief hole (42) is greater than the shaft diameter of the second pin (43). The second pin (43) rotates and slides in the relief hole (42). The other end of the second pin (43) is installed in the second insertion hole (32).

6. A linear motor with stable transmission and compact space according to claim 5, characterized in that: The clearance hole (42) is oblong and is used to limit the axial displacement of the second pin (43).

7. A linear motor with stable transmission and compact space according to claim 1, characterized in that: A spring is installed on each of the left and right sides of the spring support (6). The spring support (6) has a body and a first limiting post (61) protruding from both ends of the body. The bracket (1) is provided with a second limiting post (12) that cooperates with the first limiting post (61). One end of the spring is sleeved on the first limiting post (61), and the other end of the spring is sleeved on the second limiting post (12). The spring support (6) is movably mounted on the bracket (1) via the springs on the left and right sides.

8. A linear motor with stable transmission and compact space according to claim 1, characterized in that: The spring support (6) has a mounting hole (62), and the transmission rod (5) has an adhesive groove (51). The spring support (6) is sleeved on the transmission rod (5) through the mounting hole (62), and the spring support (6) is fixedly connected to the transmission rod (5) by adhesive coated in the adhesive groove (51).

9. A linear motor with stable transmission and compact space according to claim 1, characterized in that: The mover also has a connector (7) and an elastic element (8); the mover seat (4) is mounted on the connector (7), and the connector (7) is movably mounted on the bracket (1) via the elastic element (8); the two movers have the same structure.

10. A linear motor with stable transmission and compact space according to claim 9, characterized in that: The connector (7) is also provided with a magnetic yoke (9), and the magnetic yoke (9) and the moving base (4) are respectively installed on both sides of the connector (7). The moving base (4), the connector (7) and the magnetic yoke (9) are fixedly connected by fasteners. Two permanent magnets (91) are also installed on the side of the magnetic yoke (9) away from the connector (7).

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