Multi-gear remote accelerator speed regulation device

Abstract

The utility model discloses a multi-gear remote accelerator speed regulation device, which comprises a control box, a multi-gear regulation module and a knob speed regulation module, the multi-gear regulation module comprises a cam switch and at least two potentiometers, the cam switch is electrically connected with the potentiometers, and the knob speed regulation module comprises speed regulation knobs corresponding to the potentiometers. The speed regulation knob is electrically connected with the potentiometer, and the cam switch and the speed regulation knob are both arranged on the control box. Output voltage gears are selected through the cam switch and the potentiometer, the output voltage of a chassis accelerator signal line is controlled by adjusting the resistance of the potentiometer on the corresponding gear through the speed regulation knob, multi-gear stepless speed regulation is achieved, and the speed regulation device is small and light, can be assembled near an operation position and facilitates operation of operators.

Description

Technical Field

[0001] The utility model relates to the field of speed regulating mechanisms, in particular to a multi-gear remote throttle speed regulating device. Background Art

[0002] Specialized vehicles are widely used in municipal construction, coal mining projects, landscaping, and other areas for lifting and transporting infrastructure materials and other equipment. Their power comes from the chassis power take-off (PTO), meaning the chassis throttle determines their operating speed. Due to the complex and diverse working environments, frequent speed changes are required during operation. Currently, there are two common speed control methods on the market: one uses the PTO switch built into the chassis inside the cab to adjust the throttle, but this is far from the operating switch, making operation inconvenient. The other uses an external remote throttle switch, which has a single speed adjustment range and is unsuitable for complex working conditions. Summary of the Invention

[0003] In order to solve the problem of single speed regulation of remote throttle switch, the utility model provides a multi-speed remote throttle speed regulation device, which can realize multi-speed stepless speed regulation and can be set near the operating position to facilitate the operator's operation.

[0004] To achieve the above objectives, the specific technical solution of the utility model is: a multi-speed remote throttle speed control device, including a control box, a multi-speed adjustment module and a knob speed control module, the multi-speed adjustment module includes a cam switch and at least two potentiometers, the cam switch is electrically connected to the potentiometer, the knob speed control module includes a speed control knob corresponding to the potentiometer, the speed control knob is electrically connected to the potentiometer, and the cam switch and the speed control knob are both arranged on the control box.

[0005] Furthermore, one end of the potentiometer is a fixed end and the other end is a sliding end, the fixed end and the sliding end are electrically connected, the fixed ends of the potentiometer are connected in series, the cam switch is provided with contacts corresponding to the potentiometer, and the sliding end is electrically connected to the corresponding contacts.

[0006] Specifically, the cam switch can only connect one contact at a time.

[0007] Furthermore, the cam switch also includes a circuit disconnecting contact. When the cam switch is connected to the circuit disconnecting contact, all potentiometers are not powered.

[0008] Specifically, the fixed ends of the potentiometers are resistors with the same resistance value.

[0009] Furthermore, the number of the potentiometers corresponds to the number of the speed control knobs, and each speed control knob is only connected to the fixed end of the corresponding potentiometer, and the number of the contacts is one more than the number of the potentiometers.

[0010] Specifically, the contact point corresponds to the adjustment gear position.

[0011] That is, each potentiometer corresponds to an adjustment gear, each adjustment gear corresponds to a voltage range, and each speed control knob corresponds to a potentiometer, and can adjust the voltage within the voltage range of the corresponding gear.

[0012] Furthermore, the control box also includes an input power line, a grounding wire and an output signal line, the input power line is connected to the cam switch to input voltage; one end of the grounding wire is connected to the fixed end of the potentiometer, and the other end is grounded; one end of the output signal line is connected to the fixed end of the potentiometer, and the other end is connected to the vehicle throttle, which is used to output voltage to adjust the vehicle throttle size.

[0013] Beneficial effects of the utility model:

[0014] The output voltage gear is selected by the cam switch and potentiometer, and the output voltage of the chassis throttle signal line is controlled by adjusting the resistance of the potentiometer on the corresponding gear through the speed control knob to achieve multi-gear stepless speed regulation. This speed control device is small and light and can be installed near the operating position to facilitate the operator's operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. For those skilled in the art, other drawings can be obtained based on the drawings without paying any creative work.

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

[0017] Figure 2 This is a circuit diagram of a multi-gear adjustment module according to an embodiment of the present utility model;

[0018] Figure 3 This is a schematic structural diagram of the knob speed regulation module according to an embodiment of the present utility model.

[0019] Among them: 100, cam switch; 110, circuit disconnect contact; 111, first contact; 112, second contact; 115, fifth contact; 200, potentiometer; 210, first potentiometer; 211, first fixed end; 221, second fixed end; 231, third fixed end; 241, fourth fixed end; 250, fifth potentiometer; 251, fifth fixed end; 310, first speed control knob; 320, second speed control knob; third speed control knob; fourth speed control knob; fifth speed control knob; 410, input power line; 420, ground wire; 430, output signal line; 500, control box. DETAILED DESCRIPTION

[0020] The following is a combination of the appended examples of the present invention Figure 1 and Figure 2 The technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0021] In addition, the terms “first” and “second” are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0022] refer to Figure 1 and Figure 2 As shown, an embodiment is given, a multi-speed remote throttle speed control device, including a control box 500, a multi-speed adjustment module and a knob speed control module, the multi-speed adjustment module includes a cam switch 100 and a potentiometer 200, wherein the potentiometer 200 is set to 5, namely the first potentiometer 210 to the fifth potentiometer 250, one end of each potentiometer 200 is a fixed end, and the other end is a sliding end, and the fixed end and the sliding end are electrically connected.

[0023] refer to Figure 2 As shown, the fixed ends of the five potentiometers are respectively a first fixed end 211 , a second fixed end 221 , a third fixed end 231 , a fourth fixed end 241 , and a fifth fixed end 251 , and the fixed ends of the five potentiometers are connected in series.

[0024] The fixed ends of the potentiometer are 5 resistors with the same resistance value.

[0025] The cam switch 100 is provided with 6 contacts, namely the first contact 111, the second contact 112 to the fifth contact 115 corresponding to the 5 potentiometers, and a circuit disconnection contact 110. The 5 contacts corresponding to the potentiometers are respectively connected to the corresponding potentiometers, and are connected in sequence according to the logic that the first potentiometer 210 is connected to the first contact 111 and the fifth potentiometer is connected to the fifth contact 115. The 5 contacts are respectively electrically connected to the 5 potentiometers.

[0026] The cam switch can only connect one contact at a time. When the cam switch connects the first contact 111, the first potentiometer 210 is energized and the other contacts are disconnected. When the cam switch connects the circuit and disconnects the contact 210, all potentiometers 200 are disconnected and not energized.

[0027] The knob speed control module includes 5 speed control knobs, which are electrically connected to the 5 fixed ends of the potentiometers respectively, that is, the first speed control knob 310 is connected to the first fixed end 211, and the second speed control knob 320 is connected to the second fixed end 221, and they are connected in sequence.

[0028] Reference Figure 3 As shown, an embodiment of speed control through a knob speed control module, the first speed control knob 310 is connected to the first fixed end 211, and the other end is connected to the first contact 111. The connection between the first speed control knob 310 and the first fixed end 211 can move on the first fixed end 211 as the first speed control knob 310 rotates, thereby adjusting the resistance of the first fixed end 211.

[0029] like Figure 1 As shown, the cam switch and the speed regulating knob are both arranged on the control box.

[0030] Each contact corresponds to an adjustment gear. In this embodiment, a total of 6 adjustment gears are set, including a circuit disconnection gear and 5 power-on gears. Each power-on gear corresponds to a resistance range according to the connected resistance.

[0031] That is, each potentiometer corresponds to an adjustment gear, each adjustment gear corresponds to a voltage range, and each speed control knob corresponds to a potentiometer, and can adjust the voltage within the voltage range of the corresponding gear.

[0032] The speed can be adjusted in a wide range by adjusting the gear, and the speed can be adjusted in a small range in the corresponding gear by the speed control knob.

[0033] Three power lines are led out from the control box, including an input power line 410, a grounding line 420 and an output signal line 430. The input power line 410 is connected to the cam switch 100 and provides input voltage to the device; one end of the grounding line 420 is connected to the first fixed end 211, and the other end is grounded; one end of the output signal line 430 is connected to the fifth fixed end 251, and the other end is connected to the vehicle throttle, which is used to output voltage to adjust the vehicle throttle size.

[0034] In this embodiment, the power input voltage is 5V, the ground wire is 0V, the maximum resistance of the potentiometer fixed terminal is 10kΩ, and the cam switch 100 has six gears from 0 to 5. The corresponding function of each gear is as follows:

[0035] 0 gear: circuit disconnected;

[0036] 1st gear: VOUT output is the voltage between the sliding end of potentiometer 2 and ground;

[0037] 2nd gear: VOUT output is the voltage between the sliding end of potentiometer 3 and ground;

[0038] Level 3: VOUT output is the voltage between the sliding terminal of potentiometer 4 and ground;

[0039] Level 4: VOUT output is the voltage between the sliding end of potentiometer 5 and ground;

[0040] Level 5: VOUT output is the voltage between the sliding end of potentiometer 6 and ground.

[0041] Wherein VOUT is the output signal line voltage output of the speed regulating device of the present invention.

[0042] The construction vehicle chassis has a remote throttle interface, which includes a 5V power supply line, a 0V ground line, and a remote throttle signal line. The throttle level is adjusted based on the input voltage of the remote throttle signal line. A higher output voltage increases the throttle level. The remote throttle interface allows for a voltage range of 0 to 5V.

[0043] The application method of the utility model is as follows: connect the input power line 410 of the speed control device (5V) of the utility model to the 5V power line reserved on the chassis of the engineering vehicle, connect the output line 430 (VOUT) to the remote throttle signal line of the chassis, and connect the ground wire (0V) to the 0V ground line of the chassis. According to Ohm's law of closed circuit:

[0044] Output voltage value of gear 1: V1=R1*5V / 50kΩ, i.e. 0~1V;

[0045] 2nd gear output voltage value: V2=(10kΩ+R2)*5V / 50kΩ, i.e. 1~2V;

[0046] 3rd gear output voltage value: V3=(20kΩ+R3)*5V / 50kΩ, i.e. 2~3V;

[0047] 4th gear output voltage value: V4=(30kΩ+R4)*5V / 50kΩ, i.e. 3~4V;

[0048] 5-level output voltage value: V5=(40kΩ+R5)*5V / 50kΩ, i.e. 4~5V.

[0049] This utility model utilizes the principle of resistor series voltage division to adjust the chassis throttle signal voltage via a cam switch and potentiometer, achieving multi-gear stepless speed regulation for special vehicles. Furthermore, the device is easy to install and can be mounted near the operating position, making it easier for operators to operate.

[0050] In the present invention, the number of potentiometers is not limited to 5, and as long as there are 2 or more, multi-level adjustment can be achieved.

[0051] Although the preferred implementation cases of the present invention have been described above in conjunction with the accompanying drawings, the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms of specific changes without departing from the scope of protection of the invention and the claims, which all fall within the scope of protection of the present invention.

Claims

1. A multi-gear remote throttle speed control device, characterized by: It includes a control box, a multi-gear adjustment module and a knob speed adjustment module. The multi-gear adjustment module includes a cam switch and at least two potentiometers. The cam switch is electrically connected to the potentiometers. The knob speed adjustment module includes a speed adjustment knob corresponding to the potentiometer. The speed adjustment knob is electrically connected to the potentiometers. The cam switch and the speed adjustment knob are both arranged on the control box.

2. The multi-speed remote throttle speed regulating device according to claim 1, characterized in that: One end of the potentiometer is a fixed end, and the other end is a sliding end. The fixed end and the sliding end are electrically connected. The fixed ends of the potentiometers are connected in series. The cam switch is provided with contacts corresponding to the potentiometers, and the sliding end is electrically connected to the corresponding contacts.

3. The multi-speed remote throttle speed regulating device according to claim 2, characterized in that: The cam switch can only connect one contact at a time.

4. The multi-speed remote throttle speed regulating device according to claim 3, characterized in that: The cam switch further comprises a circuit breaking contact. When the cam switch is connected to the circuit breaking contact, all the potentiometers are not powered.

5. The multi-speed remote throttle speed regulating device according to claim 4, characterized in that: The fixed ends of the potentiometer are resistors with the same resistance value.

6. The multi-speed remote throttle speed regulating device according to claim 5, characterized in that: The number of the potentiometers corresponds to the number of the speed control knobs, and each speed control knob is only connected to the fixed end of the corresponding potentiometer. The number of the contacts is one more than the number of the potentiometers.

7. The multi-speed remote throttle speed regulating device according to claim 6, characterized in that: The contact points correspond to the adjustment gears.

8. The multi-speed remote throttle speed regulating device according to claim 7, characterized in that: The control box also includes an input power line, a grounding wire and an output signal line. The input power line is connected to the cam switch to input voltage; one end of the grounding wire is connected to the fixed end of the potentiometer and the other end is grounded; one end of the output signal line is connected to the fixed end of the potentiometer and the other end is connected to the vehicle throttle, which is used to output voltage to adjust the vehicle throttle size.

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