Direct current motor with inner and outer iron core rotor structure

Abstract

The utility model discloses a direct current motor with an inner and outer iron core rotor structure, which comprises a machine body and a protective cover arranged outside the machine body, an output shaft of the machine body penetrates out of the protective cover, the protective cover is provided with a change-over switch, one end of the change-over switch is movably provided with a change-over plectrum, the front side of the change-over plectrum is provided with a positioning groove, and one side of the outer wall of the protective cover is provided with a hollow shell. A through hole is formed in the hollow shell, a supporting plate is slidably arranged at the position of the through hole, one end of the supporting plate is located in the hollow shell, a positioning block opposite to the positioning groove is arranged in the hollow shell, a driving assembly is arranged on the supporting plate, the driving end of the driving assembly is connected with the positioning block, and the driving assembly is driven to drive the positioning block to rotate by a certain angle along the central axis of the positioning block. In the prior art, when in use, the outer wall of the output shaft is sleeved with an animal needing to be carried, a gap between the animal needing to be carried and a switch is not large, manual adjustment by personnel is very troublesome, and certain potential safety hazards exist. The device can be conveniently and manually adjusted by the personnel, and certain potential safety hazards are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of motors with inner and outer rotors, in particular to a DC motor with an inner and outer iron core rotor structure. Background Art

[0002] An electric motor, also known as an electric motor, is a device that converts electrical energy into mechanical energy. It is widely used in various fields such as industry, agriculture, transportation, and household, and is an indispensable source of power in modern society.

[0003] The Chinese utility model patent application number CN202222763741.8 discloses a brushed inner and outer rotor integrated power device, which is mainly composed of an inner rotor, an outer rotor, a switching switch and an outer cover; both the inner rotor and the outer rotor adopt the principle of a brushed motor, and the two rotors serve as stators for each other. When the outer rotor rotates, the inner rotor is fixed as a stator, and when the inner rotor rotates, the outer rotor is fixed as a stator; the switching switch is used to switch and control the rotation of the inner and outer rotors; the outer cover plays a role in supporting and protecting the internal structure.

[0004] However, the switching is performed by manual operation of the switch. When in use, the outer wall of the output shaft will be covered with the animal to be carried. The gap between the animal to be carried and the switch is not large. It is very troublesome to adjust it manually and there are certain safety hazards. Utility Model Content

[0005] The purpose of the utility model is to overcome the above-mentioned deficiencies in the prior art and to provide a DC motor with an inner and outer iron core rotor structure.

[0006] The above-mentioned technical purpose of the present utility model is achieved through the following technical solutions: a DC motor with an inner and outer iron core rotor structure, comprising a body and a protective cover arranged on the outside thereof, the output shaft of the body passing through the protective cover, a switching switch being arranged on the protective cover, the switching switch being located on the outside of the body and a switching paddle being movably arranged at one end, a positioning groove being provided on the front side of the switching paddle, a hollow shell being provided on the outer wall of the protective cover facing the output shaft of the body, a through hole being provided on the hollow shell, a support plate being slidably provided at the through hole, one end of the support plate being located inside the hollow shell, a positioning block being arranged inside the hollow shell opposite to the positioning groove, a driving assembly being provided on the support plate, a driving end of the driving assembly being connected to the positioning block, and the driving assembly being driven to drive the positioning block to rotate a certain angle along its own central axis.

[0007] Preferably, the driving assembly includes a rotating rod rotatably connected to the support plate and a driving wheel sleeved on one end thereof, a rotating rod parallel to the rotating rod is provided on the side of the positioning block away from the switching paddle, a driven wheel connected to the driving wheel belt transmission is sleeved on the outer wall of the rotating rod, a knob is sleeved on the other end of the rotating rod, and one end of the knob is located outside the hollow shell through the through hole.

[0008] Preferably, a top block is provided on the positioning block for relative sliding movement, a push block is provided between the two groups of top blocks, the push block is inclined toward one side of the top block, a pushing member is provided between the active wheel and the positioning block, one end of the pushing member is connected to the pushing block, and the pushing member is driven to drive the push block to move horizontally along the length direction of the output shaft.

[0009] Preferably, the pushing member includes a ring mounted on the outer wall of the rotating rod and a driving plate connected to the rotating rod by a connecting rod, the driving plate passes through the interior of the hollow shell through a through hole at one end away from the ring, a screw rod is provided on the outer wall of the support plate, and a slider is provided at one end of the driving plate located outside the hollow shell and is slidably connected to the screw rod, and the ring is connected to the push block through a sliding rod.

[0010] Preferably, an observation port is provided on the hollow shell.

[0011] Preferably, a positioning bolt is screwed onto one end of the support plate located outside the hollow shell.

[0012] The beneficial effects of the utility model are as follows: a hollow shell is provided on the outside of the output shaft, a support plate is slidably provided on the hollow shell, and a positioning block is provided in the hollow shell opposite to the positioning groove on the switch paddle. The sliding of the support plate indirectly drives the positioning block to enter and exit the positioning groove, and the driving assembly drives the positioning block to rotate along its own central axis, thereby achieving horizontal movement and rotation of the switch paddle.

[0013] Compared with the prior art, the present invention can extend the movable switching paddle between the belt animal and the switching switch without the need for personnel to sleeve a belt animal on the output shaft of the machine body, thereby reducing the safety hazards of certain personnel use. At the same time, the support plate sliding on the hollow shell at one end and the knob position setting on the support plate make it easier for personnel to adjust the position of the switching paddle without squeezing into the gap between the belt animal and the switching switch for adjustment. The observation port on the hollow shell also makes it convenient for personnel to observe the status of the switching paddle. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram for illustrating the external mechanism of the protective cover in one embodiment of the present invention;

[0015] Figure 2 This is a side sectional view for showing part of the internal mechanism of the hollow shell in one embodiment of the present invention;

[0016] Figure 3 for Figure 2 Enlarged view of part A;

[0017] Figure 4 This is an exploded view for showing the upper part of the hollow shell mechanism in one embodiment of the present invention;

[0018] Figure 5 for Figure 4 Enlarged view of part B;

[0019] Figure 6 This is an exploded view of the external structure of the protective cover in one embodiment of the present invention.

[0020] Figure numerals: 1, protective cover; 2, output shaft; 3, switching paddle; 4, positioning groove; 5, hollow shell; 6, through hole; 7, support plate; 8, positioning block; 9, driving wheel; 10, rotating rod; 11, driven wheel; 12, rotating rod; 13, knob; 14, top block; 15, push block; 16, collar; 17, connecting rod; 18, driving plate; 19, screw rod; 20, slider; 21, observation port; 22, positioning bolt; 23, slide bar; 24, switching switch. DETAILED DESCRIPTION

[0021] The following is only a preferred embodiment of the present invention, and the scope of protection is not limited to this embodiment. All technical solutions under the concept of the present invention should fall within the scope of protection of the present invention. At the same time, it should be pointed out that for ordinary technicians in this technical field, several improvements and modifications without departing from the principle of the present invention should also be regarded as within the scope of protection of the present invention.

[0022] It should be noted that in this article, relational terms such as first and second, such as "connector board one, connector board two", etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0023] The directional words mentioned in this embodiment, such as "up, down, left, right", etc., are only used in conjunction with the drawings to enable technicians in this technical field to understand the relationship between various features or parts.

[0024] In this embodiment, unless otherwise clearly specified and limited, the terms "connection", "fixed", etc. should be understood in a broad sense. For example, "fixed" can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in this utility model according to specific circumstances.

[0025] like Figures 1 to 6 As shown, a DC motor with an inner and outer iron core rotor structure includes a body and a protective cover 1 mounted on the outside thereof. The output shaft 2 of the body passes through the protective cover 1. A switching switch 24 is provided on the protective cover 1. A switching paddle 3 is movably provided at one end of the switching switch 24 located outside the body. A positioning slot 4 is provided on the switching paddle 3. In this embodiment, the switching switch 24 and the switching paddle 3 both adopt technical components commonly used by technicians in this technical field, and the working state is changed by rotating and translating the switching paddle 3.

[0026] A hollow shell 5 is provided on the front side of the outer wall of the protective cover 1, and the switching switch 24 is located at one end outside the protective cover 1 and is covered by the hollow shell 5. A through hole 6 is provided on the upper side of the hollow shell 5, and the upper end of the support plate 7 is horizontally slidably connected to the through hole 6. The lower end of the support plate 7 is located inside the hollow shell 5. The opposite ends of the support plate 7 are rotatably provided with a rotating rod 10, and the rotating rod 10 is sequentially sleeved with a driving wheel 9 and a knob 13. The upper end of the knob 13 is located outside the hollow shell 5 through the through hole 6, and the lower end of the support plate 7 is provided with a positioning block 8 opposite to the positioning groove 4 of the switching paddle 3 toward the side of the switching switch 24. The positioning block 8 is rotatably connected to the lower end of the support plate 7 through a rotating rod 12. A driven wheel 11 connected to the driving wheel 9 is provided on the rotating rod 12, and a collar 16 is provided between the driven wheel 11 and the positioning block 8. The collar 16 is sleeved on the driven wheel 11 outside and does not contact its outer wall, the positioning block 8 is slidably provided with a top block 14 at the upper and lower ends of the side away from the switching paddle 3, and a push block 15 is provided between the two groups of top blocks 14, and the front ends of the push blocks 15 are respectively inclined to the side close to the two groups of top blocks 14. The inclined setting is gradually downwardly moved along the driven wheel 11 toward the switching paddle 3, and the rear end of the push block 15 is slidably connected to the front side of the collar 16 through the slide rod 23, and the rear side of the collar 16 is rotatably connected to the driving plate 18 through the connecting rod 17. The upper end of the driving plate 18 is passed through the through hole 6 and is located outside the hollow shell 5. The upper outer wall of the support plate 7 is provided with a screw rod 19, and the upper end of the driving plate 18 is provided with a slider 20 slidably connected to the screw rod 19. The support plate 7 is located outside the hollow shell 5 and is screwed with a positioning bolt 22 at one end thereof. Its purpose is to facilitate personnel to locate the position of the support plate 7.

[0027] When the personnel do not need to adjust the switch paddle 3 , the positioning block 8 is located outside the positioning slot 4 , and the positioning bolt 22 is fixed to the outer wall of the hollow shell 5 , and the personnel do not need to rotate the knob 13 .

[0028] When the personnel needs to adjust the switching paddle 3, first rotate the positioning bolt 22 so that it is not fixed with the outer wall of the hollow shell 5. The personnel can slide the support plate 7 freely so that the positioning block 8 extends horizontally into the positioning groove 4 of the switching paddle 3, and then rotate the screw rod 19 to move the slider 20 downward. The slider 20 moves downward to drive the driving plate 18, and the driving plate 18 pushes the collar 16 through the connecting rod 17. The collar 16 drives the push block 15 forward. The inclined surfaces of the two groups of top blocks 14 and the push block 15 cooperate to move away from each other, extend out of the positioning block 8 and fit into the inner wall of the positioning groove 4, so that the positioning block 8 and the switching paddle 3 can move synchronously. Then, when the personnel needs to switch the paddle 3 to move forward and backward, it directly drives the support plate 7 to move forward and backward. When the plate 7 slides, the switching paddle 3 can be indirectly driven to move through the positioning block 8. When the switching paddle 3 needs to be rotated, the personnel can rotate the knob 13, and the knob 13 drives the driving wheel 9. The driving wheel 9 and the driven wheel 11 are driven, and the driven wheel 11 drives the rotating rod 12. The rotating rod 12 starts to rotate the positioning block 8. The positioning block 8 starts to drive the switching paddle 3 to rotate a certain angle around its own central axis through the top block 14. After the adjustment, the personnel reverses the screw rod 19, and the slider 20 moves up, indirectly pulling the push block 15 away from the positioning block 8. The two sets of top blocks 14 approach each other again and no longer fit the inner wall of the positioning groove 4. Then the personnel drive the support plate 7 to indirectly drive the positioning block 8 to move out of the positioning groove 4.

[0029] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the scope of protection of the present invention.

Claims

1. A DC motor with an inner and outer iron core rotor structure, comprising a body and a protective cover (1) arranged outside the body, wherein an output shaft (2) of the body passes through the protective cover (1), a switch (24) is arranged on the protective cover (1), and a switch paddle (3) is movably arranged at one end of the switch (24) outside the body. It is characterized by: A positioning groove (4) is provided on the front side of the switching paddle (3); A hollow shell (5) is provided on the outer wall of the protective cover (1) facing the output shaft (2) of the machine body, a through hole (6) is provided on the hollow shell (5), a support plate (7) is slidably provided at the through hole (6), and one end of the support plate (7) is located inside the hollow shell (5); A positioning block (8) opposite to the positioning groove (4) is provided inside the hollow shell (5), and a driving component is provided on the support plate (7). The driving end of the driving component is connected to the positioning block (8), and the driving component is driven to drive the positioning block (8) to rotate a certain angle along its own central axis.

2. A DC motor with an inner and outer iron core rotor structure according to claim 1, characterized in that: The driving assembly comprises a rotating rod (10) rotatably connected to the support plate (7) and a driving wheel (9) sleeved on one end thereof; a rotating rod (12) parallel to the rotating rod (10) is provided on the side of the positioning block (8) away from the switching paddle (3); a driven wheel (11) connected to the driving wheel (9) in a belt transmission is sleeved on the outer wall of the rotating rod (12); a knob (13) is sleeved on the other end of the rotating rod (10), and one end of the knob (13) is located outside the hollow shell (5) through the through hole (6).

3. The DC motor with an inner and outer iron core rotor structure according to claim 2, characterized in that: A top block (14) is relatively slidably provided on the positioning block (8), a push block (15) is provided between the two groups of top blocks (14), and the push block (15) is inclined toward one side of the top block (14). A push member is provided between the driving wheel (9) and the positioning block (8), one end of the push member is connected to the push block (15), and the push member is driven to drive the push block (15) to move horizontally along the length direction of the output shaft (2).

4. A DC motor with an inner and outer iron core rotor structure according to claim 3, characterized in that: The pushing member comprises a collar (16) sleeved on the outer wall of the rotating rod (12) and a driving plate (18) connected to the rotating rod (12) via a connecting rod (17); the driving plate (18) passes through the interior of the hollow shell (5) through a through hole (6) at one end away from the collar (16); a screw rod (19) is provided on the outer wall of the support plate (7); a slider (20) is provided at one end of the driving plate (18) located outside the hollow shell (5) and is slidably connected to the screw rod (19); the collar (16) is connected to the pushing block (15) via a sliding rod (23).

5. The DC motor with an inner and outer iron core rotor structure according to claim 1, characterized in that: The hollow shell (5) is provided with an observation port (21).

6. The DC motor with an inner and outer iron core rotor structure according to claim 1, characterized in that: The support plate (7) is located on one end outside the hollow shell (5) and is screwed with a positioning bolt (22).

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