CN113028045B - Control device for converting engineering vehicle into reverse gear through forward gear and neutral gear - Google Patents

Control device for converting engineering vehicle into reverse gear through forward gear and neutral gear Download PDF

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Publication number
CN113028045B
CN113028045B CN202110246756.4A CN202110246756A CN113028045B CN 113028045 B CN113028045 B CN 113028045B CN 202110246756 A CN202110246756 A CN 202110246756A CN 113028045 B CN113028045 B CN 113028045B
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China
Prior art keywords
contact
microswitch
gear
electrically connected
shifting fork
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Application number
CN202110246756.4A
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Chinese (zh)
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CN113028045A (en
Inventor
赵建军
王勇
张志功
刘俊
刘继先
吴波
俎利
王树堂
郭加
李锐
严文佳
卢新龙
李丰田
张岩
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Inner Mongolia Yiji Xcmg Special Equipment Co ltd
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Inner Mongolia Yiji Xcmg Special Equipment Co ltd
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Priority to CN202110246756.4A priority Critical patent/CN113028045B/en
Publication of CN113028045A publication Critical patent/CN113028045A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/02—Selector apparatus
    • F16H59/08—Range selector apparatus
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
    • E02F3/80—Component parts
    • E02F3/84—Drives or control devices therefor, e.g. hydraulic drive systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/02—Selector apparatus
    • F16H59/0217—Selector apparatus with electric switches or sensors not for gear or range selection, e.g. for controlling auxiliary devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30—Constructional features of the final output mechanisms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/40—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism comprising signals other than signals for actuating the final output mechanisms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/02—Selector apparatus
    • F16H2059/0291—Selector apparatus comprising safety means for preventing injuries in case of accidents

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Operation Control Of Excavators (AREA)
  • Control Of Transmission Device (AREA)

Abstract

The invention discloses a control device for converting an engineering vehicle into a reverse gear through a forward gear and a neutral gear, which comprises a vehicle-mounted power supply, a power switch, an alarm power supply, a first microswitch, a starting motor, a second microswitch and a reverse alarm bell, wherein the first microswitch is arranged at the neutral gear position, one side in the first microswitch is respectively provided with a first contact and a second contact, and the other side in the first microswitch is respectively provided with a third contact and a fourth contact; a first shifting fork is arranged in the middle of the first microswitch; the second microswitch is arranged on the position of the forward gear, a fifth contact and a sixth contact are respectively arranged in the second microswitch, and a second shifting fork is arranged in the second microswitch between the fifth contact and the sixth contact. The invention avoids the occurrence of wrong gear relation, realizes that a reverse gear prompt must be provided when the bulldozer is in a reverse gear position, and sends out alarm bell to ring according to the driving state in time, thereby improving the safety performance of the bulldozer gear control.

Description

Control device for converting engineering vehicle into reverse gear through forward gear and neutral gear
Technical Field
The invention relates to the technical field of engineering vehicles, in particular to a control device for converting an engineering vehicle into a reverse gear through a forward gear and a neutral gear.
Background
At present, engineering machinery vehicles, particularly crawler-type engineering machinery vehicles, are mainly switched into a high-efficiency area by the experience operation of a driver, and the hydraulic transmission is ensured to work in the high-efficiency area. Aiming at the characteristics of the working condition of the engineering mechanical vehicle and the defect of insufficient manual gear shifting operation strength, the engineering mechanical vehicle adopts the hydraulic torque converter of the automatic gearbox to reasonably realize automatic gear shifting.
The bulldozer must have a reverse gear prompt when the bulldozer is in a reverse gear position, namely a reverse gear alarm ring to ensure safe operation during reverse gear, and in the process of changing gears back and forth, a gear relationship error transmission signal is caused, a reverse gear signal is caused to fail, the reverse gear alarm ring cannot be sent out, and unpredictable safety accidents are easy to happen.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a control device for converting a work vehicle into a reverse gear through a forward gear and a neutral gear.
In order to achieve the purpose, the invention adopts the following technical scheme:
the control device for converting the engineering vehicle into the reverse gear through the forward gear and the neutral gear comprises a first microswitch and a second microswitch, wherein the first microswitch is arranged at the position of the neutral gear, a first contact and a second contact are respectively arranged on one side in the first microswitch, and a third contact and a fourth contact are respectively arranged on the other side in the first microswitch;
a first shifting fork is arranged in the middle of the first microswitch, two ends of one side of the first shifting fork are respectively in electrical contact connection with the first contact and the second contact, and two ends of the other side of the first shifting fork are respectively in electrical contact connection with the third contact and the fourth contact;
the second microswitch is arranged on a forward gear position, a fifth contact and a sixth contact are respectively arranged in the second microswitch, a second shifting fork is arranged between the fifth contact and the sixth contact and is arranged in the second microswitch, and two ends of the second shifting fork are respectively in electric contact connection with the fifth contact and the sixth contact.
Preferably, the first contact is electrically connected with the vehicle-mounted power supply through a power switch, one end of the vehicle-mounted power supply is provided with a first grounding wire which is electrically connected, the other end of the vehicle-mounted power supply is electrically connected with one end of the power switch through a first control wire, and the other end of the power switch is electrically connected with the first contact through a second control wire.
Preferably, a first branch control line electrically connected with the first contact is arranged in the middle of the first control line, the first branch control line is electrically connected with one end of the alarm power supply, and the other end of the alarm power supply is electrically connected with the third contact through a second branch control line.
Preferably, the second contact is electrically connected with the starter motor through a motor control wire, and a second grounding wire electrically connected with the other end of the starter motor is arranged at the other end of the starter motor.
Preferably, the fourth contact is electrically connected with the fifth contact through a contact control line.
Preferably, the sixth contact is electrically connected with the backing alarm bell through an alarm control line, and the other end of the backing alarm bell is provided with a third grounding wire which is electrically connected.
Compared with the prior art, the invention has the beneficial effects that:
1. in the invention, when the gear is placed in the forward gear, the second shifting fork at the forward gear position enters the forward gear position, so that the second shifting fork touches the second microswitch, and the fifth contact and the sixth contact of the second microswitch are disconnected; at the moment, the first shifting fork at the neutral position leaves the neutral position, so that the first shifting fork leaves the first microswitch, the first contact and the second contact of the first microswitch are disconnected, the starting motor cannot be started, the third contact and the fourth contact of the first microswitch are connected, the fifth contact and the sixth contact of the second microswitch are disconnected, and the backing alarm bell does not ring;
2. in the invention, when the gear is placed in a neutral gear, the second shifting fork at the forward gear position leaves the forward gear position at the moment, so that the second shifting fork leaves the second microswitch, and the fifth contact and the sixth contact of the second microswitch are communicated; at the moment, the first shifting fork at the neutral position enters a neutral position, so that the first shifting fork touches the first microswitch, the first contact and the second contact of the first microswitch are connected, the starting motor can be started, the third contact and the fourth contact of the first microswitch are disconnected, the fifth contact and the sixth contact of the second microswitch are connected, and the backing alarm bell does not ring;
3. in the invention, when the gear is placed in a reverse gear, the second shifting fork at the forward gear position leaves the forward gear position, so that the second shifting fork leaves the second microswitch, and the fifth contact and the sixth contact of the second microswitch are communicated; at the moment, the first shifting fork at the neutral position leaves the neutral position, so that the first shifting fork leaves the first microswitch, the first contact and the second contact of the first microswitch are disconnected, the starting motor cannot be started, the third contact and the fourth contact of the first microswitch are connected, the fifth contact and the sixth contact of the second microswitch are connected, and the backing alarm bell rings;
in conclusion, the invention avoids the occurrence of wrong gear relation, realizes that the reverse gear prompt is required when the bulldozer is in the reverse gear position, and sends out the alarm bell to ring according to the driving state in time, thereby improving the safety performance of the bulldozer in gear control.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a schematic illustration of the gears of the present invention in a forward gear;
FIG. 2 is a schematic illustration of the gear of the present invention placed in neutral;
FIG. 3 is a schematic illustration of the gear of the present invention placed in reverse;
number in the figure: the vehicle-mounted power supply comprises a vehicle-mounted power supply 1, a power supply switch 2, an alarm power supply 3, a first microswitch 4, a first contact 401, a second contact 402, a third contact 403, a fourth contact 404, a first shifting fork 405, a starting motor 5, a second microswitch 6, a fifth contact 601, a sixth contact 602, a second shifting fork 603 and a reverse alarm bell 7.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1: referring to fig. 1 to 3, the control device for converting the engineering vehicle into the reverse gear through the forward gear and the neutral gear comprises a first microswitch 4 and a second microswitch 6, wherein the first microswitch 4 is installed at the neutral gear position, a first contact 401 and a second contact 402 are respectively installed at one side in the first microswitch 4, and a third contact 403 and a fourth contact 404 are respectively installed at the other side in the first microswitch 4;
a first shifting fork 405 is installed in the middle of the first microswitch 4, two ends of one side of the first shifting fork 405 are respectively in electrical contact connection with a first contact 401 and a second contact 402, and two ends of the other side of the first shifting fork 405 are respectively in electrical contact connection with a third contact 403 and a fourth contact 404;
the second microswitch 6 is installed on the position of a forward gear, a fifth contact 601 and a sixth contact 602 are respectively installed in the second microswitch 6, a second shifting fork 603 is installed in the second microswitch 6 between the fifth contact 601 and the sixth contact 602, and two ends of the second shifting fork 603 are respectively in electrical contact connection with the fifth contact 601 and the sixth contact 602.
In the invention, the first contact 401 is electrically connected with the vehicle-mounted power supply 1 through the power switch 2, the vehicle-mounted power supply 1 is a 24V power supply, the power switch 2 facilitates the control of the start and stop of the vehicle-mounted power supply 1, one end of the vehicle-mounted power supply 1 is provided with a first grounding wire which is electrically connected, the other end of the vehicle-mounted power supply 1 is electrically connected with one end of the power switch 2 through a first control wire, and the other end of the power switch 2 is electrically connected with the first contact 401 through a second control wire.
In the invention, a first branch control line electrically connected is arranged in the middle of the first control line, the first branch control line is electrically connected with one end of an alarm power supply 3, the alarm power supply 3 is a 15V power supply, the other end of the alarm power supply 3 is electrically connected with a third contact 403 through a second branch control line, and the alarm power supply 3 provides electric power support for the backing alarm bell 7.
In the invention, the second contact 402 is electrically connected with the starting motor 5 through a motor control line, the other end of the starting motor 5 is provided with a second ground wire which is electrically connected, the fourth contact 404 is electrically connected with the fifth contact 601 through a contact control line, the sixth contact 602 is electrically connected with the backing alarm bell 7 through an alarm control line, the other end of the backing alarm bell 7 is provided with a third ground wire which is electrically connected, the backing alarm bell 7 sends out alarm bell ringing in time according to the driving state, and the stability in the electrical transmission process is increased through the matched use of the first ground wire, the second ground wire and the West three ground wires.
Example 2: in this embodiment, the present invention, when used specifically, includes the following three cases:
when the gear is placed in the forward gear, see fig. 1:
at this time, the second shifting fork 603 in the forward gear position enters the forward gear position, so that the second shifting fork 603 touches the second microswitch 6, and the fifth contact 601 and the sixth contact 602 of the second microswitch 6 are disconnected;
at this time, the first fork 405 in the neutral position is moved out of the neutral position, so that the first fork 405 is moved out of the first microswitch 4, the first contact 401 and the second contact 402 of the first microswitch 4 are turned off, the starter motor 5 cannot be started, the third contact 403 and the fourth contact 404 of the first microswitch 1 are turned on, the fifth contact 601 and the sixth contact 602 of the second microswitch 6 are turned off, and the reverse alarm bell 7 is not sounded.
(II), referring to FIG. 2, when the gears are placed in neutral:
at this time, the second fork 603 in the forward gear position is away from the forward gear position, so that the second fork 603 is away from the second microswitch 6, and the fifth contact 601 and the sixth contact 602 of the second microswitch 6 are switched on;
at this time, the first fork 405 in the neutral position enters the neutral position, so that the first fork 405 touches the first microswitch 4, the first contact 401 and the second contact 402 of the first microswitch 4 are connected, the starter motor 5 can be started, the third contact 403 and the fourth contact 404 of the first microswitch 1 are disconnected, the fifth contact 601 and the sixth contact 602 of the second microswitch 6 are connected, and the reverse alarm bell 7 does not ring.
(iii), referring to fig. 3, when the gear is placed in reverse:
at this time, the second fork 603 in the forward gear position is away from the forward gear position, so that the second fork 603 is away from the second microswitch 6, and the fifth contact 601 and the sixth contact 602 of the second microswitch 6 are switched on;
at this time, the first fork 405 in the neutral position is moved out of the neutral position, so that the first fork 405 is moved out of the first microswitch 4, the first contact 401 and the second contact 402 of the first microswitch 4 are turned off, the starter motor 5 cannot be started, the third contact 403 and the fourth contact 404 of the first microswitch 1 are turned on, the fifth contact 601 and the sixth contact 602 of the second microswitch 6 are turned on, and the reverse alarm bell 7 is sounded.
The invention avoids the occurrence of wrong gear relation, realizes that a reverse gear prompt must be provided when the bulldozer is in a reverse gear position, and sends out alarm bell to ring according to the driving state in time, thereby improving the safety performance of the bulldozer gear control.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (1)

1. Engineering vehicle is through the controlling means who advances gear and neutral gear conversion reverse gear, including first micro-gap switch (4), second micro-gap switch (6), its characterized in that: the first microswitch (4) is arranged at a neutral position, a first contact (401) and a second contact (402) are respectively arranged on one side in the first microswitch (4), and a third contact (403) and a fourth contact (404) are respectively arranged on the other side in the first microswitch (4);
a first shifting fork (405) is installed in the middle of the first microswitch (4), two ends of one side of the first shifting fork (405) are respectively in electrical contact connection with a first contact (401) and a second contact (402), and two ends of the other side of the first shifting fork (405) are respectively in electrical contact connection with a third contact (403) and a fourth contact (404);
the second microswitch (6) is arranged on a forward gear position, a fifth contact (601) and a sixth contact (602) are respectively arranged in the second microswitch (6), a second shifting fork (603) is arranged in the second microswitch (6) between the fifth contact (601) and the sixth contact (602), and two ends of the second shifting fork (603) are respectively in electric contact connection with the fifth contact (601) and the sixth contact (602);
the first contact (401) is electrically connected with a vehicle-mounted power supply (1) through a power switch (2), one end of the vehicle-mounted power supply (1) is provided with a first grounding wire which is electrically connected, the other end of the vehicle-mounted power supply (1) is electrically connected with one end of the power switch (2) through a first control wire, and the other end of the power switch (2) is electrically connected with the first contact (401) through a second control wire;
a first branch control line electrically connected with the middle part of the first control line is arranged, the first branch control line is electrically connected with one end of the alarm power supply (3), and the other end of the alarm power supply (3) is electrically connected with a third contact (403) through a second branch control line;
the second contact (402) is electrically connected with a starting motor (5) through a motor control wire, and a second grounding wire which is electrically connected is arranged at the other end of the starting motor (5);
the fourth contact (404) is electrically connected with the fifth contact (601) through a contact control line;
the sixth contact (602) is electrically connected with the backing alarm bell (7) through an alarm control line, and the other end of the backing alarm bell (7) is provided with a third grounding wire which is electrically connected.
CN202110246756.4A 2021-03-05 2021-03-05 Control device for converting engineering vehicle into reverse gear through forward gear and neutral gear Active CN113028045B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110246756.4A CN113028045B (en) 2021-03-05 2021-03-05 Control device for converting engineering vehicle into reverse gear through forward gear and neutral gear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110246756.4A CN113028045B (en) 2021-03-05 2021-03-05 Control device for converting engineering vehicle into reverse gear through forward gear and neutral gear

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CN113028045A CN113028045A (en) 2021-06-25
CN113028045B true CN113028045B (en) 2022-05-13

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CN202110246756.4A Active CN113028045B (en) 2021-03-05 2021-03-05 Control device for converting engineering vehicle into reverse gear through forward gear and neutral gear

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Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2128027B (en) * 1982-10-01 1985-11-06 Electronic Components Ltd Gearbox indicator switch
KR20090060568A (en) * 2007-12-10 2009-06-15 전석화 Reverse indicating apparatus for vehicle
CN203372084U (en) * 2013-05-10 2014-01-01 河南丰收新能源车辆有限公司 Backing relay of electric vehicle
CN203623498U (en) * 2013-06-26 2014-06-04 长城汽车股份有限公司 Backup lamp switch, fault warning system thereof and corresponding vehicle
CN206870944U (en) * 2017-02-27 2018-01-12 山东梅拉德能源动力科技有限公司 Shift signal output and indicating lamp control circuit based on microswitch

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