Linear motor with stroke extension

Abstract

The utility model relates to the technical field of linear motors, and discloses a linear motor with stroke extension, which comprises a motor body, a heat dissipation mechanism is arranged on the surface of the motor body, and the heat dissipation mechanism comprises a connecting shell. According to the linear motor with the stroke extending function, the motor body can be cooled through operation of a cooling fan, a first threaded rod is driven to rotate through operation of a first motor so that a sliding plate can be driven to slide on the outer edge of a sliding rod, and dust blocked on a connecting shell and a filter cartridge can be scraped off by driving a brush plate to move through the sliding plate; the heat of the coil under long-time operation of the motor can be effectively reduced to prevent internal heating short circuit, so that the problems that when the linear motor works, the stepping motor works for a long time, the heating value of the coil is larger and larger, and when the temperature of the coil is too high, the internal of the stepping motor is burnt out and short circuit is easily caused are solved. And the later-stage work of the linear motor is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of linear motors, in particular to a linear motor with extended stroke. Background Art

[0002] A linear motor is a drive that converts electrical energy directly into mechanical energy for linear motion. Compared with traditional drives, linear motors can achieve linear drive without the need for a transmission structure. They have a simple structure, low loss, high precision and high efficiency.

[0003] However, the following problems still exist in actual use:

[0004] (1) When the linear motor is working, the stepper motor will work for a long time, causing the coil to generate more and more heat. When the temperature of the coil is too high, it is very easy to cause the stepper motor to burn out and short-circuit, affecting the later operation of the linear motor.

[0005] (2) During the linear transmission process, the existing linear motor has a limited linear transmission stroke. Therefore, the stroke cannot be extended in some locations with limited space during the linear transmission process, resulting in limited stroke and affecting the transmission use. Utility Model Content

[0006] In view of the shortcomings of the prior art, the utility model provides a linear motor with an extended stroke, which has the function of reducing the heat of the coil when the motor is operating for a long time to prevent internal heating and short circuit. In addition, the stroke of the linear motor can be extended to prevent limitations caused by limited space, thereby solving the problems raised in the background technology.

[0007] The utility model provides the following technical solution: a linear motor with extended stroke, comprising: a motor body, a heat dissipation mechanism is arranged on the surface of the motor body, the heat dissipation mechanism comprises: a connecting shell, a first support block is fixedly installed on the top of the connecting shell, a first threaded rod is rotatably installed on the inner wall of the first support block, a slide plate is threadedly connected to the outer edge of the first threaded rod, a brush plate is fixedly installed on the side of the slide plate, a filter cartridge is fixedly installed on the inner wall of the connecting shell, a heat dissipation fan is fixedly installed on one end of the inner wall of the filter cartridge, and a breathable plate is fixedly installed on the side of the inner wall of the connecting shell.

[0008] Preferably, the extension mechanism includes a first slide rail, a second threaded rod is rotatably mounted on the inner wall of the first slide rail, the outer edge of the second threaded rod is threadedly connected to the second slide rail, a limit block is installed at the side height of the first slide rail, the side of the limit block is slidably connected to the side of the inner wall of the second slide rail, a first fixed plate is fixedly mounted on the top of the second slide rail, a third threaded rod is rotatably mounted on the inner wall of the first fixed plate, and the outer edge of the third threaded rod is threadedly connected to the slide table.

[0009] Preferably, the side surface of the connecting shell is fixedly connected to the side surface of the motor body, the side surface of the first supporting block is fixedly mounted with the first motor, and the output end of the first motor is fixedly connected to one end of the first threaded rod.

[0010] Preferably, a second support block is fixedly mounted on the top of the connecting shell, a sliding rod is fixedly mounted on the side of the second support block, and an outer edge of the sliding rod is slidably connected to an inner wall of the sliding plate.

[0011] Preferably, the side surface of the brush plate is slidably connected to the side surface of the filter cartridge, and the side surface of the brush plate is slidably connected to the side surface of the connecting shell.

[0012] Preferably, the side surface of the first slide rail is fixedly connected to the side surface of the motor body, the output end of the motor body is fixedly connected to one end of the second threaded rod, a first guide rod is fixedly installed on the side surface of the first slide rail, the outer edge of the first guide rod is slidably connected to the inner wall of the second slide rail, a second motor is fixedly installed on the side surface of the first fixed plate, the output end of the second motor is fixedly connected to one end of the third threaded rod, a second guide rod is fixedly installed on the side surface of the first fixed plate, and the outer edge of the second guide rod is slidably connected to the inner wall of the slide.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The linear motor with extended stroke can dissipate heat from the motor body through the operation of the cooling fan, and the operation of the first motor drives the first threaded rod to rotate, thereby driving the slide plate to slide on the outer edge of the slide rod. The slide plate drives the brush plate to move, and the dust blocked by the connecting shell and the filter cylinder can be scraped off. The setting of this structure can effectively reduce the heat of the coil under long-term operation of the motor to prevent internal heating and short circuit, thereby solving the problem that when the linear motor is working, the stepper motor has been working for a long time, resulting in the increasing heat of the coil. When the temperature of the coil is too high, it is very easy to cause the stepper motor to burn out and short-circuit, affecting the later operation of the linear motor.

[0015] 2. The linear motor with extended stroke drives the second threaded rod to rotate through the operation of the motor body, thereby driving the second slide rail to slide on the side of the limit block and the outer edge of the first guide rod. The third threaded rod is driven to rotate through the operation of the second motor, thereby driving the slide to slide on the outer edge of the second guide rod to extend the stroke of the slide. The setting of this structure can effectively extend the stroke of the linear motor and prevent it from being limited by limited space, thereby solving the problem of the existing linear motor in the process of linear transmission. Due to the limited linear transmission stroke, some positions with limited space during the linear transmission process cannot be extended, resulting in limited stroke and affecting the use of transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the utility model device;

[0017] Figure 2 For this utility model Figure 1 The left structural diagram of ;

[0018] Figure 3 It is a schematic diagram of the cross-sectional structure on the right side of the utility model.

[0019] In the figure: 1. motor body; 2. connecting shell; 3. first support block; 4. first motor; 5. first threaded rod; 6. slide plate; 7. second support block; 8. slide rod; 9. brush plate; 10. filter cartridge; 11. cooling fan; 12. air permeable plate; 13. first slide rail; 14. second threaded rod; 15. second slide rail; 16. first guide rod; 17. limit block; 18. first fixing plate; 19. second motor; 20. third threaded rod; 21. slide table; 22. second guide rod. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-3 A linear motor with extended stroke comprises: a motor body 1, a heat dissipation mechanism is arranged on the surface of the motor body 1, and the heat dissipation mechanism comprises: a connecting shell 2, a first support block 3 is fixedly installed on the top of the connecting shell 2, a first threaded rod 5 is rotatably installed on the inner wall of the first support block 3, a slide plate 6 is threadedly connected to the outer edge of the first threaded rod 5, a brush plate 9 is fixedly installed on the side of the slide plate 6, a filter cartridge 10 is fixedly installed on the inner wall of the connecting shell 2, a heat dissipation fan 11 is fixedly installed on one end of the inner wall of the filter cartridge 10, and a breathable plate 12 is fixedly installed on the side of the inner wall of the connecting shell 2.

[0022] Among them, the extension mechanism includes a first slide rail 13, a second threaded rod 14 is rotatably installed on the inner wall of the first slide rail 13, the outer edge of the second threaded rod 14 is threadedly connected to the second slide rail 15, a limit block 17 is installed at the side height of the first slide rail 13, the side of the limit block 17 is slidably connected to the side of the inner wall of the second slide rail 15, a first fixed plate 18 is fixedly installed on the top of the second slide rail 15, a third threaded rod 20 is rotatably installed on the inner wall of the first fixed plate 18, and the outer edge of the third threaded rod 20 is threadedly connected to the slide 21.

[0023] The side surface of the connecting shell 2 is fixedly connected to the side surface of the motor body 1 , the side surface of the first supporting block 3 is fixedly mounted with the first motor 4 , and the output end of the first motor 4 is fixedly connected to one end of the first threaded rod 5 .

[0024] A second support block 7 is fixedly mounted on the top of the connecting shell 2 , a sliding rod 8 is fixedly mounted on the side of the second support block 7 , and an outer edge of the sliding rod 8 is slidably connected to an inner wall of the sliding plate 6 .

[0025] Among them, the side of the brush plate 9 is slidably connected to the side of the filter cylinder 10, and the side of the brush plate 9 is slidably connected to the side of the connecting shell 2. The motor body 1 can be cooled by the operation of the cooling fan 11. The operation of the first motor 4 drives the first threaded rod 5 to rotate, thereby driving the slide plate 6 to slide on the outer edge of the slide rod 8. The brush plate 9 is driven to move by the slide plate 6 to scrape off the dust blocked on the connecting shell 2 and the filter cylinder 10. The setting of this structure can effectively reduce the heat of the coil under long-term operation of the motor to prevent internal heating and short circuit, thereby solving the problem that when the linear motor is working, the stepper motor has been working for a long time, resulting in the coil generating more and more heat. When the temperature of the coil is too high, it is very easy to cause the stepper motor to burn out and short-circuit, affecting the later operation of the linear motor.

[0026] Among them, the side of the first slide rail 13 is fixedly connected to the side of the motor body 1, the output end of the motor body 1 is fixedly connected to one end of the second threaded rod 14, the side of the first slide rail 13 is fixedly installed with a first guide rod 16, the outer edge of the first guide rod 16 is slidably connected to the inner wall of the second slide rail 15, the side of the first fixed plate 18 is fixedly installed with a second motor 19, the output end of the second motor 19 is fixedly connected to one end of the third threaded rod 20, the side of the first fixed plate 18 is fixedly installed with a second guide rod 22, the outer edge of the second guide rod 22 is slidably connected to the inner wall of the slide 21, and the second threaded rod 14 is driven to rotate by the operation of the motor body 1. The movement drives the second slide rail 15 to slide on the side of the limit block 17 and the outer edge of the first guide rod 16. The operation of the second motor 19 drives the third threaded rod 20 to rotate, thereby driving the slide 21 to slide on the outer edge of the second guide rod 22, so that the stroke of the slide 21 is extended. The arrangement of this structure can effectively extend the stroke of the linear motor to prevent the limitation caused by limited space, thereby solving the problem that in the process of linear transmission of the existing linear motor, due to the limited linear transmission stroke, the stroke cannot be extended at some positions with limited space during the linear transmission process, resulting in limited stroke and affecting the use of transmission.

[0027] Working principle: when in use, first, the second threaded rod 14 is driven to rotate through the operation of the motor body 1, thereby driving the second slide rail 15 to slide on the side of the limit block 17 and the outer edge of the first guide rod 16, and the third threaded rod 20 is driven to rotate through the operation of the second motor 19, thereby driving the slide 21 to slide on the outer edge of the second guide rod 22, so that the stroke of the slide 21 is extended, and the motor body 1 can be cooled by the operation of the cooling fan 11. The first motor 4 is driven to rotate the first threaded rod 5, thereby driving the slide plate 6 to slide on the outer edge of the slide rod 8. The slide plate 6 drives the brush plate 9 to move to scrape off the dust blocked on the connecting shell 2 and the filter cylinder 10 to prevent dust clogging from causing poor heat dissipation effect.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A linear motor with extended stroke, characterized in that: include: A motor body (1) is provided with a heat dissipation mechanism on the surface of the motor body (1), and the heat dissipation mechanism comprises: a connecting shell (2), a first support block (3) is fixedly mounted on the top of the connecting shell (2), a first threaded rod (5) is rotatably mounted on the inner wall of the first support block (3), a slide plate (6) is threadedly connected to the outer edge of the first threaded rod (5), a brush plate (9) is fixedly mounted on the side of the slide plate (6), a filter cartridge (10) is fixedly mounted on the inner wall of the connecting shell (2), a heat dissipation fan (11) is fixedly mounted on one end of the inner wall of the filter cartridge (10), and a breathable plate (12) is fixedly mounted on the side of the inner wall of the connecting shell (2).

2. A linear motor with extended stroke according to claim 1, characterized in that: An extension mechanism comprises a first slide rail (13), a second threaded rod (14) is rotatably mounted on the inner wall of the first slide rail (13), the outer edge of the second threaded rod (14) is threadedly connected to the second slide rail (15), a limit block (17) is height-mounted on the side of the first slide rail (13), the side of the limit block (17) is slidably connected to the side of the inner wall of the second slide rail (15), a first fixing plate (18) is fixedly mounted on the top of the second slide rail (15), a third threaded rod (20) is rotatably mounted on the inner wall of the first fixing plate (18), and the outer edge of the third threaded rod (20) is threadedly connected to a slide table (21).

3. A linear motor with extended stroke according to claim 1, characterized in that: The side surface of the connecting shell (2) is fixedly connected to the side surface of the motor body (1), the side surface of the first supporting block (3) is fixedly mounted with a first motor (4), and the output end of the first motor (4) is fixedly connected to one end of a first threaded rod (5).

4. A linear motor with extended stroke according to claim 1, characterized in that: A second support block (7) is fixedly mounted on the top of the connecting shell (2), a sliding rod (8) is fixedly mounted on the side of the second support block (7), and the outer edge of the sliding rod (8) is slidably connected to the inner wall of the slide plate (6).

5. A linear motor with extended stroke according to claim 1, characterized in that: The side surface of the brush plate (9) is slidably connected to the side surface of the filter cartridge (10), and the side surface of the brush plate (9) is slidably connected to the side surface of the connecting shell (2).

6. A linear motor with extended stroke according to claim 2, characterized in that: The side surface of the first slide rail (13) is fixedly connected to the side surface of the motor body (1), the output end of the motor body (1) is fixedly connected to one end of the second threaded rod (14), the side surface of the first slide rail (13) is fixedly mounted with a first guide rod (16), the outer edge of the first guide rod (16) is slidably connected to the inner wall of the second slide rail (15), the side surface of the first fixed plate (18) is fixedly mounted with a second motor (19), the output end of the second motor (19) is fixedly connected to one end of the third threaded rod (20), the side surface of the first fixed plate (18) is fixedly mounted with a second guide rod (22), the outer edge of the second guide rod (22) is slidably connected to the inner wall of the slide table (21).

Images