CN211791337U

CN211791337U - Rotary multi-stage speed regulator

Info

Publication number: CN211791337U
Application number: CN201921665713.4U
Authority: CN
Inventors: 瞿庆山; 李海月; 瞿安铭
Original assignee: Tianchang Kexin Electronic Co ltd
Current assignee: Tianchang Kexin Electronic Co ltd
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2020-10-27
Anticipated expiration: 2029-09-30

Abstract

The utility model discloses a rotation type multi-stage speed regulator, including casing, first contact, second contact, a plurality of resistance, a plurality of contact piece, lead electrical pillar, insulating rotation piece and rotation conducting rod, wherein: the conducting post is vertically fixed in the shell, one contact piece is connected with one resistor, the contact pieces are circumferentially distributed in the shell around the axis of the conducting post, the rotating conducting rod is rotatably installed on the conducting post, the axis of the rotating conducting rod is overlapped with the axis of the conducting post, the insulating rotating piece is installed in the shell and used for driving the rotating conducting rod to rotate, and the rotating conducting rod is sequentially connected with the contact pieces in the rotating process; the conductive post is connected to the first contact and the plurality of resistors are connected to the second contact. The utility model discloses simple structure realizes driving through rotating insulating rotation and rotates the contact piece that conducting rod and difference are connected, and then changes the size of the resistance that inserts in the circuit to change the rotational speed of motor.

Description

Rotary multi-stage speed regulator

Technical Field

The utility model relates to a speed regulator technical field for the direct current motor especially relates to a rotation type multi-stage speed regulator.

Background

The motor is an electromagnetic device which realizes electric energy conversion or transmission according to the law of electromagnetic induction, and the speed regulator changes the rotating speed of the motor by changing the methods of the stage number, voltage, current, frequency and the like of the motor, so that the rotating speed of the motor is suitable for different palace locks. Generally, a multi-stage motor speed regulator enables different resistors to be connected into a circuit of a motor by pressing different buttons, so that the current of the circuit where the motor is located is changed, and the motor speed needs to be regulated by several stages, so that the multi-stage motor speed regulator occupies a large area.

SUMMERY OF THE UTILITY MODEL

For solving the technical problem who exists among the background art, the utility model provides a rotation type multi-stage speed regulator.

The utility model provides a rotation type multi-stage speed regulator, include casing, first contact, second contact, a plurality of resistance, a plurality of contact piece, lead electrical pillar, insulating rotation piece and rotate the conducting rod, wherein:

the conducting post is vertically fixed in the shell, one contact piece is connected with one resistor, the contact pieces are circumferentially distributed in the shell around the axis of the conducting post, the rotating conducting rod is rotatably installed on the conducting post, the axis of the rotating conducting rod is overlapped with the axis of the conducting post, the insulating rotating piece is installed in the shell and used for driving the rotating conducting rod to rotate, and the rotating conducting rod is sequentially connected with the contact pieces in the rotating process;

the conductive post is connected to the first contact and the plurality of resistors are connected to the second contact.

As the utility model discloses the scheme of further optimization, insulating rotation piece are insulating rotary drum, and the vertical rotation of insulating rotary drum is installed in the casing, and insulating rotary drum is located to lead between electrical pillar and the contact piece, and insulating rotary drum pivoted axis and the axis coincidence of leading electrical pillar have a connecting hole along its radial opening on the insulating rotary drum, and the connecting hole leads electrical pillar with the rotation and matches.

As the utility model discloses the scheme of further optimization still includes insulating collar, and insulating collar is fixed in the casing and the axis of insulating collar coincides with the axis of leading electrical pillar, and a plurality of contact pieces are installed on the inner wall of insulating collar.

As the utility model discloses the scheme of further optimization, the terminal surface that rotates the conducting rod and contact piece and contact the cambered surface to the indent that the cambered surface that the one side of contact piece and rotation conducting rod contact matches for and rotate the conducting rod to the evagination is the cambered surface to the evagination.

As a further optimized scheme of the utility model, a plurality of contact pieces are crisscross the setting each other in vertical direction.

As the utility model discloses the scheme of further optimization rotates the conducting rod and includes a plurality of minutes conducting rod and total conducting rod, divides conducting rod vertical distribution on total conducting rod, divides conducting rod and contact piece one-to-one.

As the utility model discloses the scheme of further optimization still includes electrically conductive elastic component, and electrically conductive elastic component establishes between branch conducting rod and total conducting rod.

As a further optimized scheme of the utility model, when dividing the conducting rod and contact piece contact, the conductive elastic part is in the compression state

In some embodiments, the contact piece further includes a plurality of guide blocks, the guide blocks correspond to the contact pieces one to one, the guide blocks are installed in the housing, each guide block has a guide arc surface, and a distance from one end of each guide arc surface close to the contact piece to the axis of the corresponding conductive column is greater than a distance from the contact piece to the axis of the corresponding conductive column.

In some embodiments, the housing includes an upper cover and a lower housing, the upper cover is mounted on the lower housing, the first contact, the second contact, the plurality of resistors, the plurality of contact pads, the conductive post, the insulating rotating member, and the rotating conductive post are mounted in the lower housing, and the insulating rotating member extends out of the upper cover.

The utility model discloses in, the rotation type multi-stage speed regulator that provides, this speed regulator establish ties in the circuit that DC motor connects, and first contact and second contact establish ties in the circuit of motor, and first contact, second contact, lead electrical pillar, rotation conducting rod, contact piece and the resistance of being connected with this contact piece constitute a circuit, realize driving through rotating the insulating rotation piece and rotate the conducting rod and be connected with different contact pieces, and then change the size of the resistance that inserts in the circuit, thereby change the rotational speed of motor; the multi-stage rotating speed of the motor can be adjusted by a rotating insulating rotating part, the structure is simple, and the occupied area is small.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

Fig. 1 is a sectional view of the present invention;

fig. 2 is a schematic view of the internal structure of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar designations denote like or similar elements or elements having like or similar functionality throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

It will be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in an orientation or positional relationship indicated in the drawings for convenience and simplicity of description only, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

A rotary type multistage governor as shown in fig. 1-2, comprising a housing 1, a first contact 2, a second contact 3, a plurality of resistors 4, a plurality of contact pieces 5, a conductive post 6, an insulating rotating member 7, an insulating mount ring 9, and a rotating conductive post 8, wherein:

the shell 1 comprises an upper cover 11 and a lower shell 10, wherein the upper cover 11 is installed on the lower shell 10, the first contact 2, the second contact 3, the plurality of resistors 4, the plurality of contact pieces 5, the conductive column 6, the insulating rotating part 7 and the rotating conductive rod 8 are installed in the lower shell 10, and the insulating rotating part 7 extends out of the upper cover 11;

the conducting posts 6 are vertically fixed on a bottom plate of a lower shell 10, the resistances of the plurality of resistors 4 are different, one contact piece 5 is in conductive connection with one resistor 4, the plurality of contact pieces 5 are circumferentially distributed in the shell 1 around the axis of the conducting posts 6, an insulating mounting ring 9 is fixed on the lower shell 10 of the shell 1, the axis of the insulating mounting ring 9 is superposed with the axis of the conducting posts 6, the plurality of contact pieces 5 are mounted on the inner wall of the insulating mounting ring 9, the resistors 4 can be mounted in the lower shell 10, in the embodiment, the resistors 4 are mounted on the inner wall of the insulating ring 9, a rotating conducting rod 8 is rotatably mounted on the conducting posts 6, the axis of the rotating conducting rod 8 is superposed with the axis of the conducting posts 6, an insulating rotating member 7 is mounted in the shell 1 and used for driving the rotating conducting rod 8 to rotate, the insulating rotating member 7 is an insulating rotating drum, and the, the insulating rotary drum is positioned between the conductive column 6 and the contact pieces 5, the rotating axis of the insulating rotary drum is superposed with the axis of the conductive column 6, connecting holes are formed in the insulating rotary drum along the radial direction of the insulating rotary drum, the connecting holes are matched with the rotating conductive column 6, and the rotating conductive rod 8 is sequentially in contact connection with the contact pieces 5 in the rotating process to realize sequential electrical connection with the contact pieces 5;

the end face of the rotating conducting rod 8, which is contacted with the contact piece 5, is an outward convex cambered surface, and the surface of the contact piece 5, which is contacted with the rotating conducting rod 8, is an inward concave cambered surface matched with the outward convex cambered surface of the rotating conducting rod 8;

the contact pieces 5 are arranged in a staggered manner in the vertical direction;

the rotary conducting rod 8 comprises a plurality of sub conducting rods 80 and a main conducting rod 81, an annular connecting groove is formed in the middle of the conductive post 6, one end face of the main conducting rod 81 is rotatably connected with the annular connecting groove of the conductive post 6, the main conducting rod 81 penetrates through a connecting hole of the insulating rotary drum and is fixedly connected with the insulating rotary drum, the connection of the main conducting rod 81 and the conductive post 6 is guaranteed, the sub conducting rods 80 are vertically distributed on the main conducting rod 81, and the sub conducting rods 80 correspond to the contact pieces 5 one by one;

the conductive elastic piece 83 is arranged between the partial conductive rods 80 and the total conductive rod 81;

the contact structure is characterized by further comprising a plurality of guide blocks 12, the guide blocks 12 correspond to the contact pieces 5 one to one, the guide blocks 12 are installed on the insulating installation ring 9 in the shell 1, the guide blocks 12 are arranged on one side of the contact pieces 5, the guide blocks 12 are provided with guide arc surfaces, and the distance from one end, close to the contact pieces 5, of each guide arc surface to the axis of the corresponding conductive column 6 is larger than the distance from the contact pieces 5 to the axis of the corresponding conductive column 6;

the conductive post 6 is connected to the first contact 2, and the plurality of resistors 4 are connected to the second contact 3.

In the working process of the speed regulator, the speed regulator is connected in series in a circuit of a motor through the first contact 2 and the second contact 3, the first contact 2, the second contact 3, the conductive column 6, the rotating conductive rod 8, the contact piece 5 and the resistor 4 connected with the contact piece 5 form a conducting circuit, and the current of the circuit is adjusted by adjusting the size of the resistor 4 connected into the circuit, so that the rotating speed of the motor is adjusted; when the rotating speed of the motor needs to be adjusted, the insulating rotating part 7 is rotated, the insulating rotating part 7 drives the rotating conducting rod 8 to rotate relative to the conducting post 6, one sub-conducting rod 80 of the rotating conducting rod 8 is separated from one contact piece 5, the rotating conducting rod 8 continuously rotates to enable the other sub-conducting rod 81 to be in contact with one guide block 12 and then continuously rotates, the distance between the arc surface of the sub-contact of the guide block 12 and the rotating conducting rod 8 and the rotating axis of the rotating conducting rod 8 is smaller and smaller, therefore, the spring is compressed, the sub-conducting rod 80 of the rotating conducting rod 8 continuously rotates for a certain angle after being separated from the guide block 12 and is in contact with the contact piece 5 under the action of the elastic force of the spring, and the conductive elastic part 83 (namely the spring) is in a compressed state when the sub-conducting rod 80 is in contact with the contact piece 5.

Preferably in this embodiment, the insulating rotating member 7 is an insulating rotating cylinder, the insulating rotating cylinder is vertically and rotatably mounted in the housing 1, the insulating rotating cylinder is located between the conductive post 6 and the contact piece 5, the axis of the insulating rotating cylinder is coincident with the axis of the conductive post 6, a connecting hole is formed in the insulating rotating cylinder along the radial direction of the insulating rotating cylinder, and the connecting hole is matched with the rotating conductive post 6.

In order to facilitate the installation of the contact pieces 5, it is preferable in this embodiment that the contact piece installation structure further includes an insulating installation ring 9, the insulating installation ring 9 is fixed in the housing 1, an axis of the insulating installation ring 9 coincides with an axis of the conductive column 6, and the plurality of contact pieces 5 are installed on an inner wall of the insulating installation ring 9.

In this embodiment, preferably, the end surface of the rotating conducting rod 8 contacting the contact piece 5 is an outward convex arc surface, and the surface of the contact piece 5 contacting the rotating conducting rod 8 is an inward concave arc surface matching with the outward convex arc surface of the rotating conducting rod 8, so that the contact area when the conducting rod 8 contacts the contact piece 5 is increased, and the contact connection between the conducting rod 8 and the contact piece 5 is ensured.

In the preferred embodiment, the contact pieces 5 are arranged in a staggered manner in the vertical direction, so that the contact connection between the contact pieces 5 and the rotating conducting rod 8 is avoided, and the accuracy of the speed regulator is further improved.

In this embodiment, preferably, the rotating conductive rods 8 include a plurality of sub conductive rods 80 and a main conductive rod 81, the sub conductive rods 80 are vertically distributed on the main conductive rod 81, and the sub conductive rods 80 correspond to the contact pieces 5 one to one.

In the present embodiment, it is preferable that a conductive elastic member 83 is further included, and the conductive elastic member 83 is disposed between the partial conductive rod 80 and the total conductive rod 81 to reduce the vibration affecting the connection between the conductive rod 8 and the conductive column 6 and the contact piece 5.

In the present embodiment, preferably, when the partial conductive rod 80 contacts the contact piece 5, the conductive elastic member 83 is in a compressed state, and the conductive rod 8 is connected with the contact piece 5 and the conductive column 6.

In the preferred embodiment, the device further comprises a plurality of guide blocks 12, the plurality of guide blocks 12 correspond to the contact pieces 5 one by one, the rotating conductive rod 8 contacts with the guide blocks 12 firstly and then contacts with the contact pieces 5 adjacent to the guide blocks 12 in the process of rotating the rotating conductive rod 8, the guide blocks 12 are installed in the housing 1, the guide blocks 12 have guide arc surfaces, the distance from one end of the guide arc surface close to the contact piece 5 to the axis of the conductive post 6 is greater than the distance from the contact piece 5 to the axis of the conductive post 6, the distance from one end of the guide arc surface far away from the contact piece 5 to the conductive post 6 is smaller than the distance from the surface of the conductive rod 80 contacting with the contact piece 5 to the axis of the conductive post 6 when the conductive elastic member 83 is in an original state, it is ensured that the conductive rod 80 can smoothly enter the guide arc surface in the rotating process, and the conductive elastic member is gradually compressed in the process of the guide arc, thereby ensuring that the conductive elastic member 83 is compressed when the contact piece 5 is in contact connection with the sub-conductive rod 80.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a multistage speed regulator of rotation type which characterized in that, includes casing (1), first contact (2), second contact (3), a plurality of resistance (4), a plurality of contact piece (5), electrically conductive post (6), insulating rotation piece (7) and rotation conducting rod (8), wherein:

the conducting post (6) is vertically fixed in the shell (1), one contact piece (5) is connected with one resistor (4), a plurality of contact pieces (5) are circumferentially distributed in the shell (1) around the axis of the conducting post (6), the rotating conducting rod (8) is rotatably installed on the conducting post (6), the rotating axis of the rotating conducting rod (8) is superposed with the axis of the conducting post (6), the insulating rotating piece (7) is installed in the shell (1) and used for driving the rotating conducting rod (8) to rotate, and the rotating conducting rod (8) is sequentially connected with the plurality of contact pieces (5) in the rotating process;

the conductive column (6) is connected with the first contact (2), and the plurality of resistors (4) are connected with the second contact (3).

2. The rotary type multistage speed regulator according to claim 1, wherein the insulating rotating member (7) is an insulating rotating cylinder, the insulating rotating cylinder is vertically and rotatably mounted in the housing (1), the insulating rotating cylinder is located between the conductive post (6) and the contact piece (5), the axis of rotation of the insulating rotating cylinder coincides with the axis of the conductive post (6), and the insulating rotating cylinder is provided with connecting holes along the radial direction thereof, and the connecting holes are matched with the rotating conductive post (6).

3. The rotary type multistage governor according to claim 1, further comprising an insulating mount ring (9), the insulating mount ring (9) being fixed in the housing (1) with an axis of the insulating mount ring (9) coinciding with an axis of the conductive post (6), the plurality of contact pieces (5) being mounted on an inner wall of the insulating mount ring (9).

4. The rotary type multistage speed regulator according to claim 1, wherein the end surface of the rotary conductor bar (8) contacting the contact piece (5) is an outwardly convex arc surface, and the surface of the contact piece (5) contacting the rotary conductor bar (8) is an inwardly concave arc surface matching the outwardly convex arc surface of the rotary conductor bar (8).

5. The rotary multistage governor according to claim 1, wherein the plurality of contact pieces (5) are arranged to be staggered with each other in the vertical direction.

6. The rotary type multistage speed governor according to claim 5, wherein the rotary conductor bars (8) include a plurality of sub conductor bars (80) and a main conductor bar (81), the sub conductor bars (80) are vertically distributed on the main conductor bar (81), and the sub conductor bars (80) correspond to the contact pieces (5) one to one.

7. The rotary type multistage governor according to claim 6, further comprising a conductive elastic member (83), the conductive elastic member (83) being provided between the partial conducting rods (80) and the total conducting rod (81).

8. The rotary type multistage governor according to claim 7, wherein the conductive elastic member (83) is in a compressed state when the conductive branch rod (80) is in contact with the contact piece (5).

9. The rotary type multistage governor according to claim 8, further comprising a plurality of guide shoes (12), wherein the plurality of guide shoes (12) correspond to the contact pieces (5) one to one, the guide shoes (12) are installed in the housing (1), and the guide shoes (12) have guide curved surfaces, and a distance from one end of the guide curved surfaces close to the contact pieces (5) to an axis of the conductive post (6) is greater than a distance from the contact pieces (5) to the axis of the conductive post (6).

10. The rotary type multistage governor according to claim 1, wherein the housing (1) includes an upper cover (11) and a lower housing (10), the upper cover (11) is mounted on the lower housing (10), the first contact (2), the second contact (3), the plurality of resistors (4), the plurality of contact pieces (5), the conductive posts (6), the insulating rotating member (7), and the rotating conductive post (8) are mounted in the lower housing (10), and the insulating rotating member (7) extends out of the upper cover (11).