CN115750104B - Speed limiter protection control device of explosion-proof forklift engine - Google Patents
Speed limiter protection control device of explosion-proof forklift engine Download PDFInfo
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- CN115750104B CN115750104B CN202211519967.1A CN202211519967A CN115750104B CN 115750104 B CN115750104 B CN 115750104B CN 202211519967 A CN202211519967 A CN 202211519967A CN 115750104 B CN115750104 B CN 115750104B
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- 230000001050 lubricating effect Effects 0.000 claims abstract description 35
- 238000001514 detection method Methods 0.000 claims abstract description 17
- 238000003860 storage Methods 0.000 claims description 8
- 238000005491 wire drawing Methods 0.000 claims description 8
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims description 2
- 238000005461 lubrication Methods 0.000 description 10
- 238000004880 explosion Methods 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Forklifts And Lifting Vehicles (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Abstract
The invention discloses a speed limiter protection control device of an explosion-proof forklift engine, which comprises a speed limiter servo, a fixed sleeve, a pull wire, a trigger piece, a lubricating sleeve, lubricating balls, a detection frame, a first group of infrared sensors, a second group of infrared sensors, an A/D converter and a central controller.
Description
Technical Field
The invention relates to the technical field of forklift parts, in particular to a speed limiter protection control device of an explosion-proof forklift engine.
Background
The speed limiter in the traditional technology is a mechanical stay wire type mechanism for controlling the accelerator, and the structure has the advantages of convenient control and low production cost, but also has corresponding defects and problems, and is particularly as follows;
1. The wire is highly abrasive due to lack of a lubrication mechanism after long-term sliding, which affects not only the life but also the operability.
2. After the forklift is used for a long time, unknown deviation is easy to exist between the speed limiting servo and the stay wire, so that when the accelerator is limited, larger deviation is easy to exist, and the speed limiting accuracy of the engine is affected.
In view of the above drawbacks, it is therefore necessary to design a speed limiter protection control device for an explosion-proof forklift engine.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the patent refers to the field of 'control, regulating, or regulating systems for engines'.
In order to solve the technical problems, the technical scheme of the invention is as follows: the speed limiter protection control device of the explosion-proof forklift engine comprises a speed limiting servo, a fixed sleeve, a pull wire, a trigger piece, a lubricating sleeve, lubricating balls, a detection frame, a first group of infrared sensors, a second group of infrared sensors, an A/D converter and a central controller, wherein the fixed sleeve is fixedly arranged on the left side of the speed limiting servo, the fixed sleeve is in welded connection with the speed limiting servo, the pull wire is slidingly arranged inside the fixed sleeve, the pull wire is in sliding connection with the fixed sleeve, the pull wire is in winding connection with the speed limiting servo, the trigger piece is fixedly arranged at the middle end of the outer wall of the pull wire, the trigger piece is in welded connection with the pull wire, the lubricating sleeve is fixedly arranged at the middle end of the outer wall of the fixed sleeve, the lubricating sleeve and the fixed sleeve are integrally formed, the number of the lubricating balls is a plurality of pieces, the lubricating balls encircle the inner wall of the lubricating sleeve, the lubrication ball and the lubrication sleeve are in sliding connection, the detection frame is fixedly arranged on the left side of the front end of the fixed sleeve, the detection frame and the fixed sleeve are in welding connection, the first group of infrared sensors are fixedly arranged on the upper and lower ends of the left side of the detection frame, the first group of infrared sensors are in bolt connection with the detection frame, the second group of infrared sensors are fixedly arranged on the upper and lower ends of the right side of the detection frame, the second group of infrared sensors are in bolt connection with the detection frame, the A/D converter is fixedly arranged on the upper side of the front end of the speed limiting server, the A/D converter is in bolt connection with the speed limiting server, the A/D converter is respectively in electric connection with the first group of infrared sensors and the second group of infrared sensors, the central controller is fixedly arranged on the lower side of the front end of the speed limiting server, the central controller is in bolt connection with the speed limiting server, the central controller is respectively and electrically connected with the speed limiting server and the A/D converter;
Further, a guide pipe is fixedly arranged at the top of the lubricating sleeve, and the guide pipe is connected with the lubricating sleeve by hot melting.
Furthermore, the top of the honeycomb duct is fixedly provided with an oil storage box, and the oil storage box is connected with the honeycomb duct by adopting hot melting.
Further, the first group of infrared sensors and the second group of infrared sensors are composed of an infrared transmitting end and an infrared receiving end, the transmitting modulation signals of the infrared transmitting end can be received by the infrared receiving end, namely, corresponding internal circuits output low level, and under the condition that an obstacle exists, the modulation signals sent by the infrared transmitting end cannot smoothly reach the infrared receiving end, at the moment, the infrared receiving end cannot receive the modulation signals, and corresponding internal circuits output high level.
Further, the A/D converter can receive the low level and the high level output by the infrared receiving terminal, and convert the low level and the high level into digital models and transmit the digital models to the central controller.
Further, the central controller can control the speed limiting server after receiving the digital signals input by the A/D converter, so that the speed limiting server corrects the position of the stay wire.
Compared with the prior art, the speed limiter protection control device of the explosion-proof forklift engine has the following advantages that;
1. Firstly, by means of the lubricating mechanism, the invention can continuously improve the lubricity of the pull wire, reduce the friction, enhance the stability of the speed limiter and protect the speed limiter of the forklift engine.
2. The trigger piece, the first group of infrared sensors, the second group of infrared sensors, the A/D converter and the central controller are mutually matched, so that the central controller can control the speed limiting server after receiving the digital signals input by the A/D converter, and the speed limiting server can correct the position of the stay wire.
Drawings
FIG. 1 is a front view of a governor protection control apparatus for an explosion proof forklift engine;
FIG. 2 is a top view of a governor protection control apparatus for an explosion proof forklift engine;
FIG. 3 is an A-direction cross-sectional view of a governor protection control device for an explosion-proof forklift engine;
FIG. 4 is a perspective view of a governor protection control apparatus for an explosion proof forklift engine, shown in FIG. 1;
FIG. 5 is a perspective view of a governor protection control apparatus for an explosion proof forklift engine;
FIG. 6 is a perspective view of a governor protection control apparatus for an explosion proof forklift engine;
fig. 7 is a perspective view of a governor protection control apparatus for an explosion proof forklift engine, fig. 4.
The speed limiting servo device comprises a speed limiting servo device 1, a fixed sleeve 2, a stay wire 3, a trigger piece 4, a lubricating sleeve 5, a lubricating ball 6, a detection frame 7, a first group of infrared sensors 8, a second group of infrared sensors 9, an A/D converter 10, a central controller 11, a flow guide pipe 501 and an oil storage box 502.
The following detailed description will be further described in conjunction with the above-described figures.
Detailed Description
In the following, numerous specific details are set forth in order to provide a thorough understanding of the concepts underlying the described embodiments, however, it will be apparent to one skilled in the art that the described embodiments may be practiced without some or all of these specific details, and in other instances well-known process steps are not described in detail.
As shown in fig. 1,2, 3,4, 5, 6 and 7, a speed limiter protection control device of an explosion-proof forklift engine comprises a speed limiting servo 1, a fixed sleeve 2, a stay wire 3, a trigger piece 4, a lubricating sleeve 5, a lubricating ball 6, a detection frame 7, a first group of infrared sensors 8, a second group of infrared sensors 9, an a/D converter 10, a central controller 11, a guide pipe 501 and an oil storage box 502;
in one embodiment, when the speed of the forklift reaches the set speed limit, the speed limit server 1 receives an instruction sent by a main control program, namely, the stay wire 3 can be driven to slide along the fixed sleeve 2, so that the purposes of pulling and adjusting the accelerator, regulating the length of the accelerator and limiting and adjusting the rotating speed of the engine are achieved;
In one embodiment, the lubrication sleeve 5 is positioned at the outer side of the fixed sleeve 2, and a plurality of lubrication balls 6 are arranged in the lubrication sleeve, so that the sliding property of the stay wire 3 on the inner wall of the fixed sleeve 2 can be improved through the auxiliary rotation of the lubrication balls 6;
In one embodiment, the lubricating liquid can be stored in the oil storage box 502 and is convenient to add in time, the flow guide pipe 501 can facilitate the guiding of the lubricating liquid in the oil storage box 502 into the lubricating balls 6 on the inner wall of the fixed sleeve 2, so that the contact lubricity of the lubricating balls 6 and the wire drawing 3 is improved, and the friction is reduced;
In one embodiment, the pull wire 3 can drive the trigger piece 4 to move left and right, the original delivery position of the trigger piece 4 on the pull wire 3 is the middle point of the first group of infrared sensors 8 and the second group of infrared sensors 9, when the pull wire 3 deflects, the trigger piece 4 blocks infrared signals between the first group of infrared sensors 8 or the second group of infrared sensors 9, the infrared receiving end can be beneficial to outputting high level to the A/D converter 10, and the A/D converter 10 can be convenient to convert the high level into digital signals;
in one embodiment, the central controller 11 controls the speed limiting servo 1 to drive the position of the wire drawing 3 to correct after receiving the digital signal of the A/D converter 10, so that the position of the trigger piece 4 is reset to the middle point of the first group of infrared sensors 8 and the second group of infrared sensors 9;
Specifically, when the speed of the forklift engine exceeds an original speed value set by a main control program of the forklift, the main control program of the forklift can send an instruction to the speed limiting server 1, so that the speed limiting server 1 can drive the wire drawing 3 to regulate and control the length of the accelerator, and the speed of the forklift engine is reduced by limiting the accelerator; in the process that the speed limiting servo 1 drives the wire drawing 3 to slide, the lubrication balls 6 on the inner wall of the lubrication sleeve 5 are always in contact with the wire drawing 3, so that the sliding property of the lubrication sleeve is improved, the friction force is reduced, and the stability of the speed limiting servo 1 to the wire drawing 3 is further improved; after the forklift is used for a period of time, an maintainer can start the first group of infrared sensors 8, the second group of infrared sensors 9, the A/D converter 10 and the central controller 11 under the condition that the forklift is not started, so that the first group of infrared sensors 8 and the second group of infrared sensors 9 are facilitated to detect whether the position of the trigger piece 4 deviates beyond the safety upper limit, and after the position exceeds the safety upper limit, the central controller 11 is facilitated to drive the wire drawing 3 to link the position of the trigger piece 4 to reset to the middle points of the first group of infrared sensors 8 and the second group of infrared sensors 9, and finally the position correction purpose is achieved.
The present invention is not limited to the above-described specific embodiments, and various modifications may be made by those skilled in the art without inventive effort from the above-described concepts, and are within the scope of the present invention.
Claims (6)
1. The speed limiter protection control device of the explosion-proof forklift engine is characterized by comprising a speed limiting servo, a fixed sleeve, a stay wire, a trigger piece, a lubricating sleeve, lubricating balls, a detection frame, a first group of infrared sensors, a second group of infrared sensors, an A/D converter and a central controller;
the fixed sleeve is fixedly arranged on the left side of the speed limiting server, and the fixed sleeve is connected with the speed limiting server by welding;
The stay wire is arranged in the fixed sleeve in a sliding way, the stay wire is connected with the fixed sleeve in a sliding way, and the stay wire is connected with the speed limiting server in a winding way;
The trigger piece is fixedly arranged at the middle end of the outer wall of the stay wire, and is connected with the stay wire by welding;
The lubricating sleeve is fixedly arranged at the middle end of the outer wall of the fixed sleeve, and the lubricating sleeve and the fixed sleeve are integrally formed;
The number of the lubricating balls is a plurality of pieces, the lubricating balls encircle the inner wall of the lubricating sleeve, and the lubricating balls are in sliding connection with the lubricating sleeve;
The detection frame is fixedly arranged on the left side of the front end of the fixed sleeve, and the detection frame is connected with the fixed sleeve by welding;
The first group of infrared sensors are fixedly arranged at the upper end and the lower end of the left side of the detection frame, and are connected with the detection frame through bolts;
the second group of infrared sensors are fixedly arranged at the upper end and the lower end of the right side of the detection frame, and are connected with the detection frame through bolts;
The A/D converter is fixedly arranged on the upper side of the front end of the speed limiting server, the A/D converter is connected with the speed limiting server through bolts, and the A/D converter is respectively electrically connected with the first group of infrared sensors and the second group of infrared sensors;
the central controller is fixedly arranged at the lower side of the front end of the speed limiting server, the central controller is connected with the speed limiting server through bolts, and the central controller is respectively electrically connected with the speed limiting server and the A/D converter;
The lubricating sleeve is positioned at the outer side of the fixed sleeve, a plurality of lubricating balls are arranged in the lubricating sleeve, and the sliding property of the pull wire on the inner wall of the fixed sleeve can be improved through the auxiliary rotation of the lubricating balls;
The pull wire can drive the trigger piece to move left and right, the original delivery position of the trigger piece on the pull wire is the middle point of the first group of infrared sensors and the middle point of the second group of infrared sensors, and when the trigger piece blocks infrared signals between the first group of infrared sensors or the second group of infrared sensors after the pull wire is deviated, the trigger piece can be beneficial to outputting high level to the A/D converter, so that the A/D converter can be conveniently converted into digital signals;
And the central controller controls the speed limiting servo to drive the wire drawing position to correct after receiving the digital signal of the A/D converter, so that the position of the trigger piece is reset to the middle points of the first group of infrared sensors and the second group of infrared sensors.
2. The explosion-proof forklift engine speed limiter protection control device according to claim 1, wherein a flow guide pipe is further fixedly arranged at the top of the lubricating sleeve, and the flow guide pipe is connected with the lubricating sleeve by adopting hot melting.
3. The explosion-proof forklift engine speed limiter protection control device according to claim 2, wherein an oil storage box is fixedly arranged at the top of the flow guide pipe, and the oil storage box is connected with the flow guide pipe by adopting hot melting.
4. The explosion-proof forklift engine speed limiter protection control device according to claim 1, wherein the first group of infrared sensors and the second group of infrared sensors are composed of an infrared transmitting end and an infrared receiving end, the transmitting modulation signal of the infrared transmitting end can be received by the infrared receiving end, namely, the corresponding internal circuit outputs a low level, and in the case of an obstacle, the modulation signal sent by the infrared transmitting end cannot smoothly reach the infrared receiving end, at the moment, the infrared receiving end cannot receive the modulation signal, and the corresponding internal circuit outputs a high level.
5. The explosion-proof forklift engine speed limiter protection control device according to claim 4, wherein the A/D converter is capable of receiving low level and high level output by the infrared receiving terminal and converting the low level and the high level into digital models, and transmitting the digital models to the central controller.
6. The explosion-proof forklift engine speed limiter protection control device according to claim 5, wherein the central controller can control the speed limiter after receiving the digital signal input by the A/D converter, so that the speed limiter corrects the position of the stay wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211519967.1A CN115750104B (en) | 2022-11-30 | 2022-11-30 | Speed limiter protection control device of explosion-proof forklift engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211519967.1A CN115750104B (en) | 2022-11-30 | 2022-11-30 | Speed limiter protection control device of explosion-proof forklift engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115750104A CN115750104A (en) | 2023-03-07 |
| CN115750104B true CN115750104B (en) | 2024-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211519967.1A Active CN115750104B (en) | 2022-11-30 | 2022-11-30 | Speed limiter protection control device of explosion-proof forklift engine |
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| Country | Link |
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| CN (1) | CN115750104B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0401155A1 (en) * | 1989-05-30 | 1990-12-05 | Jesa Automobile, Jutzeler, Erlenbach | Device for the regulation of rotation speed, in particular for the limitation of the rotation speed of a combustion engine |
| CN2167886Y (en) * | 1993-05-11 | 1994-06-08 | 张然 | Overrunning governor for automobile |
| KR20060071196A (en) * | 2004-12-21 | 2006-06-26 | 두산인프라코어 주식회사 | Apparatus for limiting drive-speed of engine type forklift truck |
| CN102196986A (en) * | 2008-10-24 | 2011-09-21 | 因温特奥股份公司 | Velocity limiter for an elevator |
| CN202863154U (en) * | 2012-09-26 | 2013-04-10 | 刘超 | Bracing wire accelerator automobile over-speed governor |
| CN203211112U (en) * | 2013-05-13 | 2013-09-25 | 宁波汽车软轴软管有限公司 | Car speed governor |
| CN208153167U (en) * | 2018-04-03 | 2018-11-27 | 杭叉集团股份有限公司 | Explosion proof forklift racing of the engine Protection control system |
-
2022
- 2022-11-30 CN CN202211519967.1A patent/CN115750104B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0401155A1 (en) * | 1989-05-30 | 1990-12-05 | Jesa Automobile, Jutzeler, Erlenbach | Device for the regulation of rotation speed, in particular for the limitation of the rotation speed of a combustion engine |
| CN2167886Y (en) * | 1993-05-11 | 1994-06-08 | 张然 | Overrunning governor for automobile |
| KR20060071196A (en) * | 2004-12-21 | 2006-06-26 | 두산인프라코어 주식회사 | Apparatus for limiting drive-speed of engine type forklift truck |
| CN102196986A (en) * | 2008-10-24 | 2011-09-21 | 因温特奥股份公司 | Velocity limiter for an elevator |
| CN202863154U (en) * | 2012-09-26 | 2013-04-10 | 刘超 | Bracing wire accelerator automobile over-speed governor |
| CN203211112U (en) * | 2013-05-13 | 2013-09-25 | 宁波汽车软轴软管有限公司 | Car speed governor |
| CN208153167U (en) * | 2018-04-03 | 2018-11-27 | 杭叉集团股份有限公司 | Explosion proof forklift racing of the engine Protection control system |
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| Publication number | Publication date |
|---|---|
| CN115750104A (en) | 2023-03-07 |
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