CN110821731A - Starting motor - Google Patents
Starting motor Download PDFInfo
- Publication number
- CN110821731A CN110821731A CN201911219937.7A CN201911219937A CN110821731A CN 110821731 A CN110821731 A CN 110821731A CN 201911219937 A CN201911219937 A CN 201911219937A CN 110821731 A CN110821731 A CN 110821731A
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- CN
- China
- Prior art keywords
- power source
- starter motor
- power supply
- driving gear
- electrically connected
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/08—Circuits or control means specially adapted for starting of engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
- F02N15/02—Gearing between starting-engines and started engines; Engagement or disengagement thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
- F02N15/02—Gearing between starting-engines and started engines; Engagement or disengagement thereof
- F02N15/022—Gearing between starting-engines and started engines; Engagement or disengagement thereof the starter comprising an intermediate clutch
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention relates to the technical field of starters, in particular to a starting motor which comprises a transmission mechanism arranged in a shell, wherein the transmission mechanism comprises a driving gear, a one-way clutch and a shifting fork, the middle part of the shifting fork is rotatably arranged in the shell, one end of the shifting fork is connected with an electromagnetic switch through an iron core, the other end of the shifting fork is fixedly connected with one end of the one-way clutch, the driving gear is arranged at the other end of the one-way clutch, and the length range of the driving gear is 20-35 mm. The length parameter of the driving gear is changed, particularly the length of the driving gear is increased, the length design of the driving gear can be designed to be 20 mm-35 mm through experiments, so that the driving gear can be ensured to be fully meshed with an external flywheel even if the driving gear is in a half-connection state due to the pressure drop of a relay coil in the motor in the starting process of the starting motor, and the phenomenon of tooth beating caused by continuous and repeated separation and meshing in the half-connection state process is avoided.
Description
Technical Field
The invention relates to the technical field of starters, in particular to a starting motor.
Background
The starter motor is a motor electrically driven and mounted on an engine to start a diesel engine or a gasoline engine. The starting motor reduces the trouble of manually starting the engine, is quick to start, can be repeatedly used and is widely used. It is commonly used for starting automobile engines, generators, large-scale engineering machinery, etc.
However, the starting motor often generates tooth-punching phenomenon in the starting process, which can cause serious abrasion of the front end part of the gear of the starting motor and even breakage in the past, and the phenomenon becomes a very important and urgent problem in the development process of the starting motor. At present, no effective solution exists in the market.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the utility model provides a starter motor can effectively solve the tooth phenomenon that takes place at the start-up in-process of starter motor.
In order to solve the above technical problems, a first technical solution adopted by the present invention is:
the utility model provides a starter motor, is including setting up the drive mechanism in the casing, drive mechanism includes drive gear, one way clutch and shift fork, the rotatable setting in casing in middle part of shift fork, the one end of shift fork is passed through the iron core and is connected with electromagnetic switch, the other end and the one way clutch one end fixed connection of shift fork, drive gear sets up at the one way clutch other end just drive gear's length range is 20mm ~ 35 mm.
The invention has the beneficial effects that:
according to the starting motor provided by the invention, the length parameter of the driving gear is changed, particularly the length of the driving gear is increased, and the length of the driving gear can be designed to be 20 mm-35 mm through experiments, so that the driving gear can be ensured to be fully meshed with an external flywheel even if the driving gear is in a half-connection state due to the pressure drop of a relay coil in the motor in the starting process of the starting motor, and the phenomenon of tooth beating caused by continuous and repeated separation and meshing in the half-connection state process is avoided.
Drawings
FIG. 1 is a schematic view of a starter motor according to the present invention;
FIG. 2 is a circuit diagram of a starter motor according to the present invention;
description of reference numerals:
1. starting the motor; 2. an electric switch starting switch; 3. a relay; 4. a relay coil;
5. a first power supply; 6. a second power supply; 7. a one-way conduction element; 8. and (4) an external power supply.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1-2, the starting motor provided by the invention comprises a transmission mechanism arranged in a shell, wherein the transmission mechanism comprises a driving gear, a one-way clutch and a shifting fork, the middle part of the shifting fork is rotatably arranged in the shell, one end of the shifting fork is connected with an electromagnetic switch through an iron core, the other end of the shifting fork is fixedly connected with one end of the one-way clutch, the driving gear is arranged at the other end of the one-way clutch, and the length range of the driving gear is 20 mm-35 mm.
The invention has the beneficial effects that:
according to the starting motor provided by the invention, the length parameter of the driving gear is changed, particularly the length of the driving gear is increased, and the length of the driving gear can be designed to be 20 mm-35 mm through experiments, so that the driving gear can be ensured to be fully meshed with an external flywheel even if the driving gear is in a half-connection state due to the pressure drop of a relay coil in the motor in the starting process of the starting motor, and the phenomenon of tooth beating caused by continuous and repeated separation and meshing in the half-connection state process is avoided.
Further, the length of the driving gear is 25 mm.
As can be seen from the above description, experiments have shown that the length of the driving gear is 25mm, which can meet the requirements of meshing and reduce the consumption of materials as much as possible.
Furthermore, the surface of the driving gear, which is far away from one end part of the one-way clutch, is provided with an elastic medium, and the length of the elastic medium is 1/4-1/3 of the length of the driving gear.
From the above description, it can be known that the surface of the driving gear far away from one end part of the one-way clutch is provided with the elastic medium, and the length of the elastic medium is 1/4-1/3 of the length of the driving gear, so that the local hardness of the driving gear can be reduced, the strength of the whole meshing part is not greatly reduced, and the abrasion to an external flywheel is also effectively reduced.
Further, still include electric door starting switch, relay coil, first power and second power and one-way conduction component, relay coil and electric door starting switch establish ties each other after with first power parallel connection, relay and starter motor establish ties each other after with first power parallel connection, second power and first power parallel connection, one-way conduction component sets up between the positive pole of first power and second power.
According to the description, on the basis of the original structure, the second power supply and the one-way conduction element are additionally arranged and connected with the first power supply in parallel, the one-way conduction element is arranged between the anode of the first power supply and the anode of the second power supply, the fact that the second power supply supplies power for the relay coil in the process of starting the motor is achieved, the one-way conduction element is arranged between the anode of the first power supply and the anode of the second power supply, the situation that the voltage drop is caused when the second power supply supplies power for the starting motor is prevented, the power supply of the relay coil is further guaranteed to be unaffected, the first power supply supplies power for the starting motor, and therefore the problem that tooth punching occurs in the starting process of the starting motor is further effectively solved.
Further, the one-way conduction element is a diode, the anode of the diode is electrically connected with the anode of the first power supply, and the cathode of the diode is electrically connected with the anode of the second power supply.
As can be seen from the above description, the simple device of the diode is used as a one-way conducting element, which is convenient for procurement and connection of specific circuits.
Furthermore, one end of the relay coil is electrically connected with one end of the electric switch starting switch, the other end of the electric switch starting switch is respectively electrically connected with the anode of the second power supply and the cathode of the diode, and the other end of the relay coil is electrically connected with the cathode of the second power supply and then grounded.
As apparent from the above description, the second power supply is implemented to supply power to the relay coil through the above connection structure.
Furthermore, one end of the starting motor is electrically connected with one end of a relay, the other end of the relay is respectively electrically connected with the anode of the diode and the anode of the first power supply, and the other end of the starting motor is electrically connected with the cathode of the first power supply and then grounded.
As can be seen from the above description, the first power supply is implemented to supply power to the starter motor through the above connection structure.
Furthermore, the specification of the first power supply is 12V/18aH, the specification of the second power supply is 12V/4aH, and the specification of the relay is 12V/300 omega.
According to the description, the relay coil is powered by the second power supply and the starting motor is powered by the first power supply in the starting process through the parameter configuration of each component, so that the problem of tooth hitting of the starting motor in the starting process is effectively solved.
Further, the device also comprises an external power supply, the voltage of the external power supply is 12V, and the external power supply is electrically connected with the positive electrode of the first power supply.
As can be seen from the above description, the external power source provides the first power source with one path of positive and negative electrodes for charging, and the other path of the external power source charges the second power source through the diode.
Referring to fig. 1-2, a first embodiment of the present invention is:
first, before the proposal is proposed, no patent document or related technical document in the prior art describes the cause of the gear-beating phenomenon that often occurs during the starting process of the starting motor. The inventor finds out through continuous research that the reason for the phenomenon is that: all adopt single power supply power among the original system, at the starter motor in-process, the single power supply supplies power for the relay coil at first, when the relay actuation, single power supply will be for the starter motor power supply simultaneously to make the voltage on the relay coil produce the instantaneous voltage drop, this just leads to the starter motor to be in half linkage state, that is to say, because reach a critical point because of voltage when the start, the gear produces the front and back oscillation, is in half linkage state with connecting gear, leads to equipment unable start, and the gear of motor also causes the damage. Wherein the inventors also demonstrated that there was indeed a voltage drop during this motor start-up by taking an internal voltage.
Therefore, the inventor proposes a solution for the problem that the tooth hitting phenomenon often occurs in the starting process of the starting motor in the prior art, specifically as follows:
the invention provides a starting motor which comprises a transmission mechanism arranged in a shell, wherein the transmission mechanism comprises a driving gear, a one-way clutch and a shifting fork, the middle part of the shifting fork is rotatably arranged in the shell, one end of the shifting fork is connected with an electromagnetic switch through an iron core, the other end of the shifting fork is fixedly connected with one end of the one-way clutch, the driving gear is arranged at the other end of the one-way clutch, and the length range of the driving gear is 20-35 mm. The length of the drive gear is preferably 25 mm. Not only can meet the requirement of completing meshing, but also can reduce consumables as far as possible. It should be noted that the length of the drive gear in the conventional starter motor is 10mm to 15mm, and the length of the drive gear in the present invention is longer than that in the conventional starter motor.
The surface of one end part, far away from the one-way clutch, of the driving gear is provided with an elastic medium, the length of the elastic medium is 1/4-1/3 of the length of the driving gear, in the embodiment, the elastic medium is made of rubber, the local hardness of the driving gear can be reduced, the strength of an integral meshing part is not greatly reduced, and the abrasion to an external flywheel is also effectively reduced.
The starting motor 1 comprises an electric switch starting switch 2, a relay 3, a relay coil 4 and a first power supply 5, wherein the relay coil 4 and the electric switch starting switch 2 are connected in series and then are connected in parallel with the first power supply 5, and the relay 3 and the starting motor 1 are connected in series and then are connected in parallel with the first power supply 5;
the above-mentioned starter motor further comprises a second power source 6 and a one-way conduction element 7, the second power source 6 is connected in parallel with the first power source 5, and the one-way conduction element 7 is arranged between the positive pole of the first power source 5 and the positive pole of the second power source 6. The specification of the first power supply 5 is 12V/18aH, the specification of the second power supply 6 is 12V/4aH, and the specification of the relay 3 is 12V/300 omega.
The starting motor further comprises an external power supply 8, the voltage of the external power supply 8 is 12V, and the external power supply 8 is electrically connected with the positive electrode of the first power supply 5. The external power supply 8 is provided for the first power supply 5 to charge through one path of positive and negative electrodes, and the other path of the external power supply 8 charges the second power supply 6 through a diode.
The unidirectional conducting element 7 is a diode with the model number of 1N4007, the anode of the diode is electrically connected with the anode of the first power supply, and the cathode of the diode is electrically connected with the anode of the second power supply. The diode is used as a one-way conducting element, so that the purchase and the connection of a specific circuit are facilitated.
Wherein, relay coil and electric door starting switch establish ties each other after with first power parallel connection, specifically do:
one end of the relay coil 4 is electrically connected with one end of the electric switch starting switch 2, the other end of the electric switch starting switch 2 is respectively electrically connected with the anode of the second power supply 6 and the cathode of the diode, and the other end of the relay coil 4 is grounded after being electrically connected with the cathode of the second power supply 6.
Wherein, relay and starter motor establish ties each other after with first power parallel connection, specifically are:
one end of the starting motor 1 is electrically connected with one end of the relay 3, the other end of the relay 3 is electrically connected with the anode of the diode and the anode of the first power supply 5 respectively, and the other end of the starting motor 1 is grounded after being electrically connected with the cathode of the first power supply 5.
The working principle of the starting motor is as follows:
the electric switch starting switch is pressed down, the second power supply supplies power to the coil of the J relay to be electrified and sucked, the two ends of the large-current electric shock of the J relay are closed and conducted, the working power supplies at the two ends of the large-current electric shock of the J relay supply power to the first power supply, and the starting motor starts to rotate to drive the gear to push the gasoline and diesel engine to start.
After the starting is successful, the electric door starting switch is released, the J relay is not electrified, and the initial state is recovered under the action of the spring. The D1 diode acts to isolate the second power source in the circuit so that power is not consumed by the motor during start-up of the motor, and remains energized to the J relay. And in the case where the second power supply voltage is lower than the first power supply voltage, the first power supply power supplies power to the second power supply to supplement power through the D1 diode. The external power source can also charge the first power source and the second power source respectively.
In summary, according to the starter motor provided by the invention, the length of the drive gear is designed to be 20 mm-35 mm by changing the length parameter of the drive gear, specifically, increasing the length of the drive gear, and experiments can show that the drive gear is designed to be 20 mm-35 mm, so that the drive gear can be ensured to be fully meshed with an external flywheel even if the drive gear is in a half-coupling state due to the pressure drop of a relay coil in the motor in the starting process of the starter motor, and the tooth beating phenomenon caused by continuous and repeated separation and meshing in the half-coupling state is avoided. In addition, on the basis of the original structure, a second power supply and a one-way conduction element are additionally arranged and connected with the first power supply in parallel, the one-way conduction element is arranged between the anode of the first power supply and the anode of the second power supply, the second power supply supplies power for the relay coil in the process of starting the motor, the one-way conduction element is arranged between the anode of the first power supply and the anode of the second power supply, the second power supply is prevented from supplying power to the starting motor to cause voltage drop, the power supply of the relay coil is further ensured not to be influenced, the first power supply supplies power for the starting motor, and therefore the tooth punching phenomenon of the starting motor in the starting process is effectively avoided. When the electric door starting switch is closed, the second power supply supplies power to the relay coil, when the relay coil is attracted, the second power supply keeps supplying power to the relay coil, the first power supply supplies power to the starting motor, and therefore the fact that power supply of the relay coil is not affected in the attraction process is guaranteed.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (9)
1. The utility model provides a starter motor, its characterized in that, is including setting up the drive mechanism in the casing, drive mechanism includes drive gear, one way clutch and shift fork, the rotatable setting in casing in middle part of shift fork, the one end of shift fork is passed through the iron core and is connected with electromagnetic switch, the other end and the one way clutch one end fixed connection of shift fork, drive gear sets up at the one way clutch other end just drive gear's length scope is 20mm ~ 35 mm.
2. A starter motor as claimed in claim 1, wherein the length of the drive gear is 25 mm.
3. A starter motor as claimed in claim 1 or 2, characterized in that the surface of the drive gear remote from the one-way clutch end is provided with an elastic medium having a length 1/4-1/3 of the length of the drive gear.
4. A starter motor according to claim 1, further comprising a switch-start switch, a relay coil, a first power source and a second power source, and a one-way conduction element, wherein the relay coil and the switch-start switch are connected in series with each other and connected in parallel with the first power source, the relay and the starter motor are connected in series with each other and connected in parallel with the first power source, the second power source is connected in parallel with the first power source, and the one-way conduction element is provided between an anode of the first power source and an anode of the second power source.
5. A starter motor as claimed in claim 4, wherein the unidirectional conducting element is a diode, the anode of the diode being electrically connected to the anode of the first power source and the cathode of the diode being electrically connected to the anode of the second power source.
6. A starter motor as claimed in claim 5, wherein one end of the relay coil is electrically connected to one end of a switch-start switch, the other ends of the switch-start switch are electrically connected to the positive electrode of the second power source and the negative electrode of the diode, respectively, and the other end of the relay coil is electrically connected to the negative electrode of the second power source and then grounded.
7. A starter motor as claimed in claim 5, wherein one end of the starter motor is electrically connected to one end of a relay, the other ends of the relay are electrically connected to the positive electrode of the diode and the positive electrode of the first power supply, respectively, and the other end of the starter motor is electrically connected to the negative electrode of the first power supply and then grounded.
8. The starter motor according to claim 4, wherein the first power source has a size of 12V/18aH, the second power source has a size of 12V/4aH, and the relay has a size of 12V/300 Ω.
9. The starter motor as claimed in claim 8, further comprising an external power source having a voltage of 12V, the external power source being electrically connected to the positive electrode of the first power source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911219937.7A CN110821731B (en) | 2019-12-03 | 2019-12-03 | Starting motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911219937.7A CN110821731B (en) | 2019-12-03 | 2019-12-03 | Starting motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110821731A true CN110821731A (en) | 2020-02-21 |
| CN110821731B CN110821731B (en) | 2022-03-22 |
Family
ID=69543440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911219937.7A Active CN110821731B (en) | 2019-12-03 | 2019-12-03 | Starting motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110821731B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111645868A (en) * | 2020-06-15 | 2020-09-11 | 四川省天域航通科技有限公司 | Large-scale freight transportation unmanned aerial vehicle starting system |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN110821731B (en) | 2022-03-22 |
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