Direct current motor speed regulation controller

Abstract

The invention discloses a direct current motor speed regulation controller, and relates to the technical field of speed regulation controllers, and the direct current motor speed regulation controller comprises a motor speed regulation controller body, a first installation frame and two second installation frames, and the first mounting frame is positioned between the two groups of second mounting frames. In the using process of the direct-current motor speed regulation controller, redundant connecting wires are stored, clamped and limited through mutual cooperation of the adjusting assembly, the storage assembly, the clamping assembly and the driving assembly, and due to the fact that the stored redundant connecting wires are in a snake shape, compared with linear or annular arrangement, the area of a magnetic field induction loop can be effectively reduced, and the reliability of the direct-current motor speed regulation controller is improved. The probability that the stable control rotation of the motor is influenced due to the fact that a magnetic field with large intensity is generated in the storage process of redundant connecting wires on the motor speed regulation controller is further reduced.

Description

Technical Field

[0001] The invention relates to the technical field of motor speed controllers, in particular to a direct current motor speed controller. Background Art

[0002] A DC motor speed controller is a device that can adjust the speed of a DC motor. It controls the motor speed by changing parameters such as the voltage, current or magnetic field strength input to the DC motor.

[0003] When a DC motor speed controller is in use, it is electrically connected to other auxiliary components such as a motor and a power supply through connecting wires (such as a power input wire, a motor connecting wire, and a control signal input wire, etc.). During the connection process, in order to avoid the excess wires from getting entangled with each other, the connecting wires need to be rolled up and stored. During the rolling and storing process, because the wires are spiral, when current passes through the connecting wires, a magnetic field will be generated. According to the principle of electromagnetic induction, this magnetic field will induce an electromotive force in the nearby signal wires, thereby generating an interference signal, causing the speed regulator to receive an erroneous speed control signal, resulting in unstable motor speed. To this end, we propose a DC motor speed controller. Summary of the invention

[0004] The object of the present invention is to provide a DC motor speed controller to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a DC motor speed controller, comprising a motor speed controller body, on which a plurality of groups of connecting wires are installed, and further comprising a first installation frame and two groups of second installation frames, wherein the first installation frame is located between the two groups of second installation frames, and the first installation frame and the motor speed controller body are detachably installed through an installation component, and the first installation frame and the two groups of second installation frames are both provided with a storage component for storing redundant connecting wires and a clamping component for clamping and connecting a plurality of groups of connecting wires, and an adjustment component for adjusting the distance between the first installation frame and the second installation frame is provided between the first installation frame and the two groups of second installation frames;

[0006] The storage assembly includes two groups of strip plates arranged on a first mounting frame and a second mounting frame, L-shaped frames are fixed on the two groups of strip plates, pins for pushing the connecting wires are fixed on the L-shaped frames, and the groups of pins on the two groups of strip plates are arranged in a staggered state, and driving assemblies for driving the two groups of strip plates are arranged on the first mounting frame and the second mounting frame.

[0007] Preferably, the driving assembly includes a double-ended screw rotatably connected to the first mounting frame and the second mounting frame, the threads at both ends of the double-ended screw are arranged in opposite directions, threaded sleeves are fixed on the two groups of strip plates, the two groups of threaded sleeves are respectively engaged with the two ends of the double-ended screw, a driving pin for driving the double-ended screw is fixed at one end, multiple groups of guide rods are fixed on the first mounting frame and the second mounting frame, and the two groups of strip plates are slidably connected to the guide rods.

[0008] Preferably, the adjustment component includes a fixing frame fixed to the upper end of the first mounting frame, a double-headed threaded tube being rotatably connected to the fixing frame, the threads at both ends of the double-headed threaded tube being arranged in opposite directions, threaded rods being threadedly engaged and connected at both ends of the double-headed threaded tube, a connecting plate being fixed at one end of two groups of the threaded rods, the two groups of the connecting plates being respectively located above the two groups of the second mounting frames, and a telescopic component for assisting the telescopic connection being arranged between the connecting plates and the upper parts of the second mounting frames, a transmission component for transmitting the two groups of the second mounting frames during the contraction process of the second mounting frames being arranged on the first mounting frame, and a guide component for guiding the connecting plates during the transmission process being arranged between the fixing frame and the two groups of the connecting plates.

[0009] Preferably, the guide assembly includes two groups of first sleeves fixed on a fixed frame, the two groups of first sleeves are symmetrically arranged on both sides of the double-headed threaded tube, the two groups of first sleeves are slidably connected with a first sliding rod, and the two ends of the first sliding rod are respectively fixed to the two groups of connecting plates.

[0010] Preferably, the telescopic assembly includes multiple groups of second sleeves fixed to the upper end of the second mounting frame, the second sleeves are slidably connected to the second slide rod, one end of the second slide rod is fixed to the connecting plate, and the outer side of each group of the second sleeves is provided with a spring, and the two ends of the spring are respectively connected to the connecting plate and the upper end of the second mounting frame.

[0011] Preferably, the transmission assembly comprises a transmission plate symmetrically fixed to one side of the first installation frame, and the transmission plate is provided with an inclined surface for resisting against a side of a second installation frame adjacent thereto for transmission.

[0012] Preferably, the clamping assembly includes two groups of symmetrically arranged clamping seats fixed on the first installation frame and the second installation frame, the two groups of strip plates are located between the two groups of clamping seats, the two groups of clamping seats are provided with clamping slots for connecting wires, and the interior of the clamping slots is provided with conveying components for assisting in conveying the connecting wires after clamping.

[0013] Preferably, the conveying assembly comprises two groups of symmetrically arranged spherical grooves opened inside the card slot, and balls are rotatably connected to the spherical grooves for abutting against the outer sides of the opened connecting lines.

[0014] Preferably, the mounting assembly includes a mounting seat arranged on one side of the first mounting frame, the mounting seat is connected and fixed to the first mounting frame by multiple groups of connecting rods, and the mounting seat is detachably mounted on the outside of the motor speed controller body by multiple groups of bolts.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] During use of the DC motor speed controller of the present invention, redundant connecting wires are stored and limited by the mutual cooperation of the adjusting component, the storage component, the clamping component and the driving component. Moreover, since the redundant connecting wires after storage are in a snake shape, compared with a straight line or a ring arrangement, the area of ​​the magnetic field induction loop can be effectively reduced, and the probability of a large intensity magnetic field being generated by the redundant connecting wires on the motor speed controller during the storage process, which affects the stable control rotation of the motor, is further reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall appearance structure of the present invention;

[0018] Figure 2 It is a side structural schematic diagram of the motor speed controller of the present invention;

[0019] Figure 3 It is a schematic diagram of the structure of the installation assembly of the present invention;

[0020] Figure 4 It is a schematic diagram of the structure of the regulating component of the present invention;

[0021] Figure 5 It is a schematic diagram of the structure of the guide assembly and the connecting assembly of the present invention;

[0022] Figure 6 It is a schematic diagram of a state in which the spacing between the first installation frame and two groups of second installation frames of the present invention is increased;

[0023] Figure 7 It is a schematic diagram of a state in which the spacing between the first installation frame and two groups of second installation frames of the present invention is reduced;

[0024] Figure 8 It is a schematic diagram of the structure of the storage component and the driving component of the present invention;

[0025] Fig. 9 It is a schematic diagram of the structure of the clamping assembly and the conveying assembly of the present invention;

[0026] Fig.10 This is a schematic diagram of the state of the connecting wire after being stored according to the present invention.

[0027] In the figure: 101-motor speed controller body; 102-connecting line; 2-first installation frame; 3-second installation frame; 401-connecting rod; 402-mounting seat; 501-cage; 502-cage slot; 601-spherical slot; 602-ball; 701-strip plate; 702-L-shaped frame; 703-pin rod; 801-double-headed screw rod; 802-threaded sleeve; 803-driving pin; 804-guide rod; 901-fixed frame; 902-double-headed threaded pipe; 903-threaded rod; 904-connecting plate; 1001-first sleeve; 1002-first slide rod; 1101-second sleeve; 1102-second slide rod; 1103-spring; 1201-transmission plate; 1202-inclined surface. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Example 1

[0030] See also Figure 1-Figure 10 , a DC motor speed controller shown in the figure includes a motor speed controller body 101, on which multiple groups of connecting wires 102 are installed, and also includes a first installation frame 2 and two groups of second installation frames 3, the first installation frame 2 is located between the two groups of second installation frames 3, the first installation frame 2 and the motor speed controller body 101 are detachably installed through an installation component, the first installation frame 2 and the two groups of second installation frames 3 are provided with a storage component for storing excess connecting wires 102 and a clamping component for clamping and connecting multiple groups of connecting wires 102, and an adjustment component for adjusting the distance between the first installation frame 2 and the second installation frame 3 is provided between the first installation frame 2 and the two groups of second installation frames 3;

[0031] The storage assembly includes two groups of strip plates 701 arranged on the first installation frame 2 and the second installation frame 3, the two groups of strip plates 701 are fixed with L-shaped frames 702, the L-shaped frames 702 are fixed with pins 703 for pushing the connecting wires 102, and the groups of pins 703 on the two groups of strip plates 701 are arranged in a staggered state, and the first installation frame 2 and the second installation frame 3 are provided with driving assemblies for driving the two groups of strip plates 701;

[0032] It should be noted here that during the use of the speed controller, the redundant connecting wires 102 are stored and limited by the cooperation of the adjusting component, the storage component, the clamping component and the driving component. Moreover, since the redundant connecting wires 102 after storage are in a snake shape, compared with a straight line or a circular arrangement, the area of ​​the magnetic field induction loop can be effectively reduced, thereby further reducing the probability of the redundant connecting wires 102 on the motor speed controller generating a large intensity magnetic field during the storage process, thereby affecting the stable control rotation of the motor.

[0033] Preferably, the driving assembly includes a double-headed screw 801 rotatably connected to the first installation frame 2 and the second installation frame 3, the threads at both ends of the double-headed screw 801 are arranged in opposite directions, threaded sleeves 802 are fixed on the two groups of strip plates 701, and the two groups of threaded sleeves 802 are respectively meshed with the two ends of the double-headed screw 801, and a driving pin 803 for driving the double-headed screw 801 is fixed at one end of the double-headed screw 801, and multiple groups of guide rods 804 are fixed on the first installation frame 2 and the second installation frame 3, and the two groups of strip plates 701 are slidably connected to the guide rods 804;

[0034] It should be noted here that: the double-headed screw 801 is driven to rotate by the driving pin 803. Since the threads at both ends of the double-headed screw 801 are arranged in opposite directions, during the rotation of the double-headed screw 801, the two sets of threaded sleeves 802 are respectively meshed with each other at the two ends of the double-headed screw 801 and the sliding guiding effect of the guide rod 804, so that the two sets of strip plates 701 after being subjected to force move towards or away from each other.

[0035] Preferably, the adjustment component includes a fixing frame 901 fixed to the upper end of the first installation frame 2, and a double-headed threaded tube 902 is rotatably connected to the fixing frame 901. The threads at both ends of the double-headed threaded tube 902 are arranged in opposite directions. The two ends of the double-headed threaded tube 902 are threadedly engaged and connected with threaded rods 903. One end of the two groups of threaded rods 903 is fixed with connecting plates 904. The two groups of connecting plates 904 are respectively located above the two groups of second installation frames 3, and a telescopic component for auxiliary telescopic connection is arranged between the connecting plate 904 and the upper part of the second installation frame 3. The first installation frame 2 A transmission assembly for transmitting the two sets of second installation frames 3 during the contraction process of the second installation frame 3 is arranged on the upper part, and a guide assembly for guiding the connecting plates 904 during the transmission process is arranged between the fixed frame 901 and the two sets of connecting plates 904; the guide assembly includes two sets of first sleeves 1001 fixed on the fixed frame 901, and the two sets of first sleeves 1001 are symmetrically arranged on both sides of the double-headed threaded tube 902, and the two sets of first sleeves 1001 are slidably connected with first slide bars 1002, and the two ends of the first slide bars 1002 are respectively fixed to the two sets of connecting plates 904;

[0036] It should be noted here that: the double-headed threaded tube 902 is rotated. During the rotation of the double-headed threaded tube 902, the two groups of threaded rods 903 are respectively engaged with the two ends of the double-headed threaded tube 902 to drive the two groups of connecting plates 904 to move under force. During the movement of the two groups of connecting plates 904, the sliding guiding effect of the first sleeve 1001 and the first sliding rod 1002 causes the two groups of connecting plates 904 to move away from or towards each other after being subjected to force.

[0037] Preferably, the telescopic assembly includes a plurality of groups of second sleeves 1101 fixed to the upper end of the second installation frame 3, a second slide bar 1102 is slidably connected to the second sleeve 1101, one end of the second slide bar 1102 is fixed to the connecting plate 904, and a spring 1103 is sleeved on the outer side of each group of second sleeves 1101, and both ends of the spring 1103 are respectively connected to the connecting plate 904 and the upper end of the second installation frame 3;

[0038] It should be noted here that: each group of second sleeves 1101 and second slide bars 1102 facilitates the telescopic connection between the second mounting frame 3 and the connecting plate 904, and the spring 1103 facilitates the reset movement between the second mounting frame 3 and the connecting plate 904 after telescopic connection.

[0039] Preferably, the transmission assembly includes a transmission plate 1201 symmetrically fixed to one side of the first installation frame 2, and the transmission plate 1201 is provided with an inclined surface 1202 for abutting against one side of the adjacent second installation frame 3 for transmission;

[0040] It should be noted here that: after the multiple groups of redundant connecting wires 102 are stored, the two groups of second mounting frames 3 are forced to move toward the first mounting frame 2 through the transmission action of the adjustment component and the guide component and the connection action of the telescopic component, thereby reducing the distance between the second mounting frame 3 and the first mounting frame 2, and avoiding the distance between the first mounting frame 2 and the second mounting frame 3 being too large to affect the operation and use of other components. In the process of the second mounting frame 3 being forced to move toward the first mounting frame 2, one side of the second mounting frame 3 is abutted against the inclined surface 1202 of the transmission plate 1201 on the first mounting frame 2. In the process of abutting, the second mounting frame 3 is forced to move downward. The downward movement of the second mounting frame 3 after being forced creates a height difference between the second mounting frame 3 and the first mounting frame 2. The existence of the height difference avoids relative parallelism between the second mounting frame 3 and the redundant connecting wires 102 stored on the first mounting frame 2, thereby further reducing the area of ​​the magnetic field induction loop.

[0041] Preferably, the clamping assembly includes two groups of clamping seats 501 fixed on the first installation frame 2 and the second installation frame 3 and arranged symmetrically with each other, two groups of strip plates 701 are located between the two groups of clamping seats 501, and the two groups of clamping seats 501 are provided with clamping slots 502 for clamping the connecting wire 102, and the inside of the clamping slots 502 is provided with a conveying assembly for assisting the conveying of the connecting wire 102 after clamping;

[0042] It should be noted here that: after the connection wires 102 are stored, the connection wires 102 are mounted on the card slots 502 of the card holder 501 to facilitate keeping the excess connection wires 102 stored.

[0043] Preferably, the conveying assembly includes two groups of symmetrically arranged spherical grooves 601 opened inside the card slot 502, and the spherical grooves 601 are rotatably connected with balls 602 for abutting against the outer side of the opened connecting line 102;

[0044] It should be noted here that: in the process of inserting the connecting wire 102 into the slot 502, the connecting wire 102 and the ball 602 are abutted against each other. During the abutment, the ball 602 rotates inside the spherical slot 601, so that the auxiliary connecting wire 102 can remain in the stuck state and can still perform the conveying and adjustment operation.

[0045] Preferably, the mounting assembly includes a mounting seat 402 disposed on one side of the first mounting frame 2, the mounting seat 402 and the first mounting frame 2 are connected and fixed by multiple groups of connecting rods 401, and the mounting seat 402 is detachably mounted on the outer side of the motor speed controller body 101 by multiple groups of bolts;

[0046] It should be noted here that: each set of connecting rods 401 facilitates the connection and fixation between the mounting seat 402 and the first mounting frame 2, and the cooperation between the mounting seat 402 and the bolts facilitates the detachable installation between the auxiliary mounting seat 402 and the motor speed controller body 101.

[0047] In this scheme: a DC motor speed controller comprises the following steps:

[0048] During the use of the speed controller, the first mounting frame 2 is fixed to the outside of the motor speed controller body 101 through the mounting assembly. After the fixing is completed, the multiple groups of connecting wires 102 on the motor speed controller body 101 are electrically connected to other auxiliary components such as the motor and the power supply according to the needs;

[0049] After each group of connecting wires 102 is installed and connected, the redundant wires after connection are stored by the storage components on the first installation frame 2 and the second installation frame 3. During the storage process, the double-headed threaded tube 902 is rotated. During the rotation of the double-headed threaded tube 902, the two groups of threaded rods 903 are respectively engaged with the two ends of the double-headed threaded tube 902 to drive the two groups of connecting plates 904 to move under force. During the movement of the two groups of connecting plates 904, the sliding guiding effect of the first sleeve 1001 and the first slide bar 1002 makes the two groups of connecting plates 904 move away from each other after being subjected to force. During the movement of the two groups of connecting plates 904, the connection effect of the second sleeve 1101 and the second slide bar 1102 on the telescopic assembly drives the two groups of second installation frames 3 to move away from the first installation frame 2 under force synchronously. Through the movement of the second installation frame 3, the second installation frame 3 and the first installation frame 3 are increased. The spacing between the frames 2 is adjusted to facilitate the storage and installation of multiple groups of connecting wires 102 on the first installation frame 2 or the second installation frame 3. During the storage of the connecting wires 102, the connecting wires 102 are sequentially passed through one side of the pin rods 703 on each group of L-shaped frames 702 and abutted against each other, so that the redundant connecting wires 102 to be stored are arranged in a snake shape. After the redundant connecting wires 102 are arranged, the two groups of strip plates 701 are driven by the driving assembly to move away from each other. During the movement of the two groups of strip plates 701 away from each other, the bending degree of the redundant connecting wires 102 is increased through the abutment and pushing effect of the pin rods 703 on each group of L-shaped frames 702 and the connecting wires 102, so as to facilitate the storage operation of the connecting wires 102 to a greater extent. After the storage of the connecting wires 102 is completed, the connecting wires 102 are clamped and installed on the card slots 502 of the card seat 501, so as to maintain the storage state of the redundant connecting wires 102 (see Fig.10 ), and in the whole process of storing and fixing the redundant connecting wires 102, the redundant connecting wires 102 after storage are in a snake shape, which can effectively reduce the area of ​​the magnetic field induction loop compared with a straight line or a ring arrangement, and further reduce the probability of the redundant connecting wires 102 on the motor speed controller generating a large intensity magnetic field during the storage process, thereby affecting the stable control rotation of the motor;

[0050] After the multiple groups of redundant connecting wires 102 are stored, the two groups of second mounting frames 3 are forced to move toward the first mounting frame 2 through the transmission effect of the adjustment component and the guide component and the connection effect of the telescopic component, thereby reducing the distance between the second mounting frame 3 and the first mounting frame 2, and preventing the distance between the first mounting frame 2 and the second mounting frame 3 from being too large and affecting the operation and use of other components. In the process of the second mounting frame 3 being forced to move toward the first mounting frame 2, one side of the second mounting frame 3 is abutted against the inclined surface 1202 of the transmission plate 1201 on the first mounting frame 2. In the process of abutting, the second mounting frame 3 under force moves downward, and the descending movement of the second mounting frame 3 under force causes a height difference between the second mounting frame 3 and the first mounting frame 2 (see FIG. 2 ). Figure 7 By the existence of the height difference, the second installation frame 3 and the redundant connecting wires 102 received on the first installation frame 2 are prevented from being relatively parallel to each other, thereby further reducing the area of ​​the magnetic field induction loop.

[0051] 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.

[0052] 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 DC motor speed controller, comprising: A motor speed controller body (101), wherein a plurality of groups of connecting wires (102) are installed on the motor speed controller body (101); It is characterized by further comprising: A first installation frame (2) and two groups of second installation frames (3), the first installation frame (2) being located between the two groups of second installation frames (3), the first installation frame (2) being detachably mounted on a motor speed controller body (101) via an installation assembly, the first installation frame (2) and the two groups of second installation frames (3) being both provided with a storage assembly for storing redundant connecting wires (102) and a clamping assembly for clamping and connecting a plurality of connecting wires (102), and an adjustment assembly for adjusting the distance between the first installation frame (2) and the second installation frame (3) being provided between the first installation frame (2) and the two groups of second installation frames (3); The storage assembly comprises two groups of strip plates (701) arranged on a first installation frame (2) and a second installation frame (3); an L-shaped frame (702) is fixed on the two groups of strip plates (701); a pin rod (703) for pushing a connecting line (102) is fixed on the L-shaped frame (702); and the groups of pin rods (703) on the two groups of strip plates (701) are arranged in a staggered state; and a driving assembly for driving the two groups of strip plates (701) is arranged on the first installation frame (2) and the second installation frame (3).

2. A DC motor speed controller according to claim 1, characterized in that: The driving assembly comprises a double-ended screw (801) rotatably connected to the first mounting frame (2) and the second mounting frame (3), the threads at both ends of the double-ended screw (801) being arranged in opposite directions, threaded sleeves (802) being fixed on the two groups of strip plates (701), the two groups of threaded sleeves (802) being respectively arranged to mesh with the two ends of the double-ended screw (801), a driving pin (803) for driving the double-ended screw (801) being fixed on one end of the double-ended screw (801), a plurality of guide rods (804) being fixed on the first mounting frame (2) and the second mounting frame (3), the two groups of strip plates (701) being slidably connected to the guide rods (804).

3. A DC motor speed controller according to claim 2, characterized in that: The adjustment component comprises a fixing frame (901) fixed to the upper end of the first installation frame (2); a double-headed threaded tube (902) is rotatably connected to the fixing frame (901); the threads at both ends of the double-headed threaded tube (902) are arranged in opposite directions; threaded rods (903) are threadedly engaged and connected to the two ends of the double-headed threaded tube (902); a connecting plate (904) is fixed to one end of two groups of the threaded rods (903); the two groups of the connecting plates (904) are respectively located above the two groups of second installation frames (3); and a telescopic component for assisting the telescopic connection is arranged between the connecting plates (904) and the upper part of the second installation frames (3); a transmission component for transmitting the two groups of second installation frames (3) during the contraction process of the second installation frames (3) is arranged on the first installation frame (2); and a guide component for guiding the connecting plates (904) during the transmission process is arranged between the fixing frame (901) and the two groups of the connecting plates (904).

4. A DC motor speed controller according to claim 3, characterized in that: The guide assembly comprises two groups of first sleeves (1001) fixed on a fixing frame (901), the two groups of the first sleeves (1001) are symmetrically arranged on both sides of a double-headed threaded tube (902), the two groups of the first sleeves (1001) are slidably connected with a first sliding rod (1002), and the two ends of the first sliding rod (1002) are respectively fixed to the two groups of connecting plates (904).

5. A DC motor speed controller according to claim 3, characterized in that: The telescopic assembly comprises a plurality of groups of second sleeves (1101) fixed to the upper end of the second installation frame (3); a second slide bar (1102) is slidably connected to the second sleeve (1101); one end of the second slide bar (1102) is fixed to the connecting plate (904); a spring (1103) is sleeved on the outer side of each group of the second sleeves (1101); and the two ends of the spring (1103) are respectively connected to the connecting plate (904) and the upper end of the second installation frame (3).

6. A DC motor speed controller according to claim 3, characterized in that: The transmission assembly comprises a transmission plate (1201) symmetrically fixed to one side of the first installation frame (2), and the transmission plate (1201) is provided with an inclined surface (1202) for abutting against a side of a second installation frame (3) adjacent thereto for transmission.

7. A DC motor speed controller according to claim 1, characterized in that: The clamping assembly comprises two groups of clamping seats (501) fixed on the first installation frame (2) and the second installation frame (3) and arranged symmetrically with each other, the two groups of strip plates (701) are located between the two groups of clamping seats (501), the two groups of clamping seats (501) are provided with clamping grooves (502) for clamping the connecting wire (102), and the interior of the clamping grooves (502) is provided with a conveying assembly for assisting in conveying the connecting wire (102) after clamping.

8. A DC motor speed controller according to claim 7, characterized in that: The conveying assembly comprises two groups of symmetrically arranged spherical grooves (601) opened inside the clamping groove (502), and the spherical grooves (601) are rotatably connected with balls (602) for abutting against the outside of the opened connecting line (102).

9. A DC motor speed controller according to claim 1, characterized in that: The mounting assembly comprises a mounting seat (402) arranged on one side of a first mounting frame (2); the mounting seat (402) and the first mounting frame (2) are connected and fixed via a plurality of groups of connecting rods (401); and the mounting seat (402) is detachably mounted on the outer side of a motor speed controller body (101) via a plurality of groups of bolts.

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