CN114517718A - Timing transmission system and detection method thereof - Google Patents
Timing transmission system and detection method thereof Download PDFInfo
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- CN114517718A CN114517718A CN202210141499.2A CN202210141499A CN114517718A CN 114517718 A CN114517718 A CN 114517718A CN 202210141499 A CN202210141499 A CN 202210141499A CN 114517718 A CN114517718 A CN 114517718A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 171
- 238000001514 detection method Methods 0.000 title claims abstract description 34
- 238000006073 displacement reaction Methods 0.000 claims abstract description 71
- 230000002159 abnormal effect Effects 0.000 claims description 30
- 238000000034 method Methods 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/022—Chain drive
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
- F01L1/348—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear by means acting on timing belts or chains
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B67/00—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
- F02B67/04—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus
- F02B67/06—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus driven by means of chains, belts, or like endless members
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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
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
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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
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H2007/0861—Means for varying tension of belts, ropes, or chains comprising means for sensing tensioner position
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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
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H2007/0876—Control or adjustment of actuators
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
A timing transmission system and a detection method thereof. The timing transmission system includes: the engine is provided with a crankshaft driving wheel, an exhaust camshaft driving wheel and an intake camshaft driving wheel; the timing transmission part is sleeved on the crankshaft transmission wheel, the exhaust camshaft transmission wheel and the intake camshaft transmission wheel; the guide piece is fixedly arranged on one side of the timing transmission piece; the tensioning piece is movably arranged on the other side of the timing transmission piece; a tensioner having a plunger engaged with the tensioning member; the first detection device is used for detecting displacement information of a position, matched with the tensioning member, on the timing transmission member and tensioning force information on the timing transmission member; the control device, the tensioner and the first detection device are electrically connected with the control device, and the control device adjusts the position of the plunger of the tensioner according to the displacement information, the tensioning force information and the preset tensioning force information and according to a first preset instruction, so that the tensioning force on the timing transmission part is adjusted to meet the preset tensioning force information, and the timing transmission part can always run under a proper tensioning force.
Description
Technical Field
The present disclosure relates to electrical equipment technology, and more particularly, to a timing transmission system and a method for detecting a timing transmission system.
Background
An automobile engine timing chain system (belonging to one type of timing transmission system) works in an environment with oil injection lubrication, and a tensioner tensions a chain by the pressure of oil. In order to meet the stability of an engine timing system in the development process of the existing engine, a large tension force (the tension force is a fixed value and is larger than the maximum tension force required in the running state of the engine) is applied to a timing chain, namely the plunger spring force and the hydraulic force of a tensioner are very large, and then the stability of the timing system is checked through an engine durability test. And if the examination is passed, the timing system is produced in batches, and the tensioning force test cannot be readjusted. Such a development process has the following problems:
the excessive tension accelerates the abrasion of the timing chain, the chain is seriously even jumped, the air inlet and exhaust time sequence is disordered, the high-speed impact between the engine piston and the air valve can occur under most conditions, and the engine can be instantaneously damaged.
Disclosure of Invention
The application provides a timing transmission system can solve the wearing and tearing of too big tensioning force acceleration timing chain, serious even lead to the chain to jump the tooth, advances to exhaust the chronogenesis in disorder, can take place high-speed striking between engine piston and the valve under most circumstances, and the engine can be at the problem of damage in the twinkling of an eye.
The application also provides a detection method of the timing transmission system.
The timing transmission system provided by the embodiment of the invention comprises: the engine is provided with a crankshaft driving wheel, an exhaust camshaft driving wheel and an intake camshaft driving wheel; the timing transmission part is sleeved on the crankshaft transmission wheel, the exhaust camshaft transmission wheel and the intake camshaft transmission wheel; the guide piece is fixedly arranged on one side of the timing transmission piece; the tensioning piece is movably arranged on the other side of the timing transmission piece; a tensioner having a plunger cooperating with the tensioning member for adjusting the position of the tensioning member; the first detection device is used for detecting displacement information of a position, matched with the tensioning member, on the timing transmission member and tensioning force information on the timing transmission member; and the control device adjusts the position of the plunger of the tensioner according to a first preset instruction according to the displacement information, the tensioning force information and preset tensioning force information, so that the tensioning force on the timing transmission part is adjusted to meet the preset tensioning force information.
In an exemplary embodiment, the control device further determines whether the timing transmission member is abnormal according to a second preset instruction based on the displacement information and preset limit displacement information, and outputs warning information when the timing transmission member is abnormal.
In an exemplary embodiment, the timing drive system further comprises: and the second detection device is electrically connected with the control device and is used for detecting the data information of the transmission part on the timing transmission part, and the control device judges whether the timing transmission part is abnormal according to the data information and preset data information and a third preset instruction and outputs alarm information when the timing transmission part is abnormal.
In an exemplary embodiment, the timing transmission is a timing transmission chain, the transmission part is a link, and the data information is a length of a single link.
In an exemplary embodiment, the tensioner is an electronic tensioner, the second detecting means is an image sensor, the guide is a guide rail, the tensioning member is a tensioning rail, and the first detecting means includes a displacement sensor and a pressure sensor.
In an exemplary embodiment, the timing transmission member is a timing belt, the transmission portion is a meshing tooth, and the data information is a length between adjacent meshing teeth.
In an exemplary embodiment, the tensioner is an electronic tensioner, the second detecting device is an image sensor, the guide is an idler pulley, the tensioning member is a tensioning pulley, and the first detecting device includes a displacement sensor and a pressure sensor.
The detection method applied to the timing transmission system provided by the embodiment of the invention comprises the following steps:
the first detection device detects displacement information of a position, matched with the tensioning piece, on the timing transmission piece and tensioning force information on the timing transmission piece;
and the control device adjusts the position of the plunger of the tensioner according to a first preset instruction according to the displacement information, the tension information and preset tension information so as to adjust the tension on the timing transmission part to meet the preset tension information.
In an exemplary embodiment, the step of detecting the displacement information of the position on the timing drive member cooperating with the tensioning member and the tensioning force information on the timing drive member is followed; the method further comprises the following steps:
and the control device judges whether the timing transmission part is abnormal according to the displacement information and preset limit displacement information and a second preset instruction, and outputs alarm information when the timing transmission part is abnormal.
In an exemplary embodiment, the method further comprises:
the second detection device detects data information of a transmission part on the timing transmission part;
the control device judges whether the timing transmission part is abnormal according to the data information and preset data information and a third preset instruction, and outputs alarm information when the timing transmission part is abnormal;
wherein: the timing transmission part is a timing transmission chain, the transmission part is a chain link, and the data information is the length of a single chain link; or the timing transmission part is a timing transmission belt, the transmission part is a meshing tooth, and the data information is the length between adjacent meshing teeth.
Compared with the prior art, the timing transmission system provided by the application has the advantages that the first detection device detects displacement information of the position, matched with the tensioning piece, on the timing transmission piece and tensioning force information on the timing transmission piece, the control device adjusts the position of the plunger of the tensioner according to the displacement information, the tensioning force information and preset tensioning force information and according to a first preset instruction, so that the tensioning force on the timing transmission piece is adjusted to meet the preset tensioning force information, the timing transmission piece can always run under a proper tensioning force, and the problems that the timing transmission piece is abraded, the gear jumps, the timing sequence of air inlet and exhaust of an engine is disordered, the engine is instantaneously damaged due to high-speed impact of a piston and an air valve and the like are solved.
Additional features and advantages of the present application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the present application. Other advantages of the present application can be realized and attained by the instrumentalities and combinations particularly pointed out in the specification and the drawings.
Drawings
The accompanying drawings are included to provide an understanding of the present disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the examples serve to explain the principles of the disclosure and not to limit the disclosure.
FIG. 1 is a schematic diagram of a timing transmission system according to an embodiment of the present invention;
FIG. 2 is a schematic view of a portion of the image sensor and the timing chain of FIG. 1;
FIG. 3 is a schematic structural diagram of a timing drive system according to another embodiment of the invention;
fig. 4 is a partial schematic structural diagram of the image sensor and the timing belt in fig. 3.
Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 4 is:
110 crankshaft drive, 120 exhaust camshaft drive, 130 intake camshaft drive, 210 timing drive chain, 220 timing drive belt, 310 guide rail, 320 tension rail, 330 idle pulley, 340 tension pulley, 400 control device, 500 electronic tensioner, 600 image sensor, 700 memory.
Detailed Description
The present embodiments are described herein, but are by way of illustration rather than limitation, and the objects, aspects and advantages of the present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
The timing transmission system provided by the embodiment of the invention is shown in fig. 1 and 3 and comprises: the engine is provided with a crankshaft driving wheel 110, an exhaust camshaft driving wheel 120 and an intake camshaft driving wheel 130; the timing transmission part is sleeved on the crankshaft transmission wheel 110, the exhaust camshaft transmission wheel 120 and the intake camshaft transmission wheel 130; the guide piece is fixedly arranged on one side of the timing transmission piece; the tensioning piece is movably arranged on the other side of the timing transmission piece; the plunger of the tensioner is matched with the tensioning member and used for adjusting the position of the tensioning member; the first detection device is used for detecting displacement information of a position, matched with the tensioning member, on the timing transmission member and tensioning force information on the timing transmission member; and the control device 400, the tensioner and the first detection device are electrically connected with the control device 400, and the control device 400 adjusts the position of the plunger of the tensioner according to a first preset instruction according to the displacement information, the tensioning force information and the preset tensioning force information, so that the tensioning force on the timing transmission member is adjusted to meet the preset tensioning force information.
This transmission system in right time, first detection device detects the displacement information with tensioning piece matched with position on the driving medium in right time and the tensioning force information on the driving medium in right time, controlling means 400 is according to displacement information, tensioning force information and predetermine tensioning force information, implement the plunger position of adjusting the tensioning ware according to first preset instruction, so that the tensioning force on the driving medium in right time is adjusted to satisfy and predetermine tensioning force information, realize that the driving medium in right time moves under suitable tensioning force always, solve the driving medium wearing and tearing in right time, jump the tooth, engine advances to exhaust the chronogenesis messy, the problem that the piston damages the engine etc. in the twinkling of an eye with the high-speed striking of valve, be favorable to reducing engine oil consumption and promote engine life.
The control device 400 may compare the tension information with preset tension information according to a first preset instruction: and adjusting the position of the plunger of the tensioner by controlling the duty ratio in real time according to the comparison result and the displacement information so as to adjust the tension on the timing transmission member to preset tension information. The tension information and the displacement information are numerical values, the preset tension information is a numerical value comparison table, and the tension required by the timing transmission part under different requirements (under different requirements, the tension can be under different working conditions according to the rotating speed and the torque of the engine) is recorded in the numerical value comparison table, so that the timing transmission part can always run under the proper tension.
In an exemplary embodiment, the control device 400 further determines whether the timing transmission member is abnormal according to the second preset instruction according to the displacement information and the preset limit displacement information, and outputs alarm information when the timing transmission member is abnormal, so as to remind a user to overhaul the timing transmission member in time.
The control device 400 may compare the displacement information with the preset limit displacement information according to a second preset instruction: when the displacement information reaches the preset limit displacement information, judging that the timing transmission part is abnormal, and outputting alarm information; and when the displacement information does not reach the preset limit displacement information, judging that the timing transmission part is normal. The displacement information and the preset limit displacement information are both numerical values (the preset limit displacement information may also be a data table, and is not described herein again).
In one embodiment, as shown in fig. 1 and 3, the tensioner is an electronic tensioner 500, and the electronic tensioner 500 is not affected by the temperature of the use environment and the oil pressure and has a faster response speed compared to a mechanical tensioner and a hydraulic tensioner.
The application may be: according to the rotating speed and the torque of the engine, under different working conditions, different tension forces are applied to the timing transmission part through the tensioner, so that the timing transmission part always runs under the proper tension force, and the purposes of reducing the friction force of a timing transmission system and prolonging the service life of the timing transmission part are achieved.
The control device 400 is provided with a memory 700, and preset tension information, preset limit displacement information, and data information are stored in the memory 700.
In an exemplary embodiment, as shown in fig. 1-4, the timing drive system further includes: the second detection device is electrically connected with the control device 400 and used for detecting data information of a transmission part on the timing transmission part, and the control device 400 judges whether the timing transmission part is abnormal according to the third preset instruction according to the data information and the preset data information and outputs alarm information when the timing transmission part is abnormal so as to remind a user of timely overhauling the timing transmission part.
In one example, as shown in fig. 1 and 2, the timing transmission member is a timing transmission chain 210, the transmission part is a link, the data information is the length of a single link, the preset data information is the limit length (threshold value) of the single link, the second detection device is an image sensor 600, and the image sensor 600 identifies the length of the single link. The control device 400 compares the length of the single link with the limit length of the single link according to a third preset command, and determines that the timing transmission member is abnormal when the length of the single link reaches the limit length of the single link (i.e., when the length of one or more single links reaches the limit length of the single link). Compared with a scheme of judging by detecting the total length of the timing transmission chain 210, the scheme of the application has higher accuracy in judging the timing transmission chain 210.
The timing transmission chain 210 may be a roller chain, a bush chain, or a tooth chain, which all can achieve the purpose of the present application, and the purpose of the present application does not depart from the design concept of the present invention, and therefore, the details are not described herein and all of the purposes should fall within the protection scope of the present application.
In one embodiment, as shown in fig. 1 and 2, the guiding element is a guiding rail 310, the tensioning element is a tensioning rail 320, the tensioning rail 320 is pivotally mounted between the timing chain 210 and the tensioner, i.e. the tensioning rail 320 has one end fixed and the other end pivotally, and the plunger of the electronic tensioner 500 is engaged with the other end of the tensioning rail 320. The first detection device comprises a displacement sensor and a pressure sensor, the displacement sensor detects displacement information, and the pressure sensor detects tension information.
The displacement sensor and the pressure sensor may be fixed to the engine.
In another example, as shown in fig. 3 and 4, the timing transmission member is the timing transmission belt 220, the transmission portion is the meshing teeth, the data information is the length between the adjacent meshing teeth, the preset data information is the limit length (threshold value) between the adjacent meshing teeth, the second detection device is an image sensor 600, and the image sensor 600 is used for identifying the length between the adjacent meshing teeth. The control device 400 compares the length between the adjacent meshing teeth and the limit length between the adjacent meshing teeth according to a third preset instruction, and determines that the timing transmission member is abnormal when the length between the adjacent meshing teeth reaches the limit length between the adjacent meshing teeth (i.e., when the length between one or more adjacent meshing teeth reaches the limit length between the adjacent meshing teeth).
In one embodiment, as shown in fig. 3 and 4, the guiding element is an idler pulley 330, the tensioning element is a tensioning pulley 340, and the first detecting means comprises a displacement sensor that detects displacement information and a pressure sensor that detects tensioning force information.
The displacement sensor and the pressure sensor may be fixed to the engine.
The detection method (not shown in the figure) applied to the timing transmission system described in any one of the above embodiments provided by the embodiment of the invention includes:
the first detection device detects displacement information of a position, matched with the tensioning member, on the timing transmission member and tensioning force information on the timing transmission member;
the control device 400 adjusts the position of the plunger of the tensioner according to a first preset instruction based on the displacement information, the tension information, and the preset tension information, so that the tension on the timing drive is adjusted to meet the preset tension information.
According to the detection method of the timing transmission system, a first detection device detects displacement information of a position, matched with a tensioning piece, on a timing transmission piece and tensioning force information on the timing transmission piece, a control device 400 adjusts the position of a plunger of a tensioner according to the displacement information, the tensioning force information and preset tensioning force information and according to a first preset instruction, so that the tensioning force on the timing transmission piece is adjusted to meet the preset tensioning force information, the timing transmission piece is enabled to always run under a proper tensioning force, and the problems that the timing transmission piece is abraded, tooth skipping, the timing sequence of air intake and exhaust of an engine is disordered, the engine is damaged instantly when a piston and an air valve collide at a high speed and the like are solved.
The control device 400 may compare the tension information with preset tension information according to a first preset instruction: and according to the comparison result and the displacement information, adjusting the position of the plunger of the tensioner by controlling the duty ratio in real time so as to adjust the tension on the timing transmission member to preset tension information. The tension information and the displacement information are numerical values, the preset tension information is a numerical value comparison table, and the tension required by the timing transmission part under different requirements (under different requirements, the tension can be under different working conditions according to the rotating speed and the torque of the engine) is recorded in the numerical value comparison table, so that the timing transmission part can always run under the proper tension.
In an exemplary embodiment, the step of detecting the displacement information of the position of the timing drive cooperating with the tensioning member and the tensioning force information on the timing drive is followed by the step of detecting the displacement information of the position of the timing drive cooperating with the tensioning member; the detection method further comprises the following steps: the control device 400 judges whether the timing transmission member is abnormal according to the displacement information and the preset limit displacement information and the second preset instruction, and outputs alarm information when the timing transmission member is abnormal so as to remind a user of timely overhauling the timing transmission member.
The control device 400 may compare the displacement information with the preset limit displacement information according to a second preset instruction: when the displacement information reaches the preset limit displacement information, judging that the timing transmission part is abnormal, and outputting alarm information; and when the displacement information does not reach the preset limit displacement information, judging that the timing transmission part is normal. The displacement information and the preset limit displacement information are numerical values.
In an exemplary embodiment, the detection method further comprises: the second detection device detects data information of a transmission part on the timing transmission part; the control device 400 judges whether the timing transmission member is abnormal according to the data information and the preset data information and the third preset instruction, and outputs alarm information when the timing transmission member is abnormal, so as to remind a user of timely overhauling the timing transmission member.
In an example, the timing transmission component is a timing transmission chain 210, the transmission part is a link, the data information is a length of a single link (which may also be a length, a width, and a height, and may be reasonably set by those skilled in the art as needed, and is not described herein again), the preset data information is a limit length of the single link, the second detection device is an image sensor 600, and the image sensor 600 is used for identifying the length of the single link. The control device 400 compares the length of the single link with the limit length of the single link according to a third preset command, and determines that the timing transmission member is abnormal when the length of the single link reaches the limit length of the single link.
In another example, the timing transmission member is the timing belt 220, the transmission portion is the engaging teeth, the data information is the length between the adjacent engaging teeth, the preset data information is the limit length between the adjacent engaging teeth, and the second detecting device is the image sensor 600, and the image sensor 600 is used for identifying the length between the adjacent engaging teeth. The control device 400 compares the length between the adjacent meshing teeth and the limit length between the adjacent meshing teeth according to a third preset instruction, and determines that the timing transmission member is abnormal when the length between the adjacent meshing teeth reaches the limit length between the adjacent meshing teeth (i.e., when the length between one or more adjacent meshing teeth reaches the limit length between the adjacent meshing teeth).
To sum up, the timing transmission system that this application provided, first detection device detects the tensile force information on displacement information and the timing transmission piece with tensioning piece matched with position on the driving medium in right time, controlling means is according to displacement information, tensile force information and predetermine tensile force information, implement the plunger position of adjusting tensioning ware according to first preset instruction, so that tensile force on the driving medium in right time is adjusted to satisfying and predetermines tensile force information, realize that the driving medium in right time moves under suitable tensile force always, solve the problem that the driving medium in right time wearing and tearing, jump the tooth, the engine advances the exhaust chronogenesis disorder, piston and the high-speed striking of valve damage engine etc. in the twinkling of an eye.
In the description of the present invention, it should be noted that the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "side", "opposite", "four corners", "periphery", "mouth" structure ", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the structures referred to have specific orientations, are configured and operated in specific orientations, and thus, are not to be construed as limiting the present invention.
In the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "connected," "directly connected," "indirectly connected," "fixedly connected," "mounted," and "mounted" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; the terms "mounted," "connected," and "fixedly connected" may refer to a direct connection, an indirect connection through intervening media, and a connection between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
Although the embodiments of the present invention have been described above, the above description is only for the convenience of understanding the present invention, and is not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A timing drive system, comprising:
The engine is provided with a crankshaft driving wheel, an exhaust camshaft driving wheel and an intake camshaft driving wheel;
the timing transmission part is sleeved on the crankshaft transmission wheel, the exhaust camshaft transmission wheel and the air inlet camshaft transmission wheel;
the guide piece is fixedly arranged on one side of the timing transmission piece;
the tensioning piece is movably arranged on the other side of the timing transmission piece;
a tensioner having a plunger cooperating with the tensioning member for adjusting the position of the tensioning member;
the first detection device is used for detecting displacement information of a position, matched with the tensioning member, on the timing transmission member and tensioning force information on the timing transmission member; and
the control device adjusts the position of the plunger of the tensioner according to a first preset instruction according to the displacement information, the tensioning force information and preset tensioning force information, so that the tensioning force on the timing transmission part is adjusted to meet the preset tensioning force information.
2. The timing transmission system according to claim 1, wherein the control device further judges whether the timing transmission member is abnormal according to a second preset instruction based on the displacement information and preset limit displacement information, and outputs a warning message when abnormal.
3. The timing transmission system according to claim 1 or 2, further comprising:
and the second detection device is electrically connected with the control device and is used for detecting the data information of the transmission part on the timing transmission part, and the control device judges whether the timing transmission part is abnormal according to the data information and the preset data information and a third preset instruction and outputs alarm information when the timing transmission part is abnormal.
4. The timing transmission system according to claim 3, wherein the timing transmission is a timing chain, the transmission part is a link, and the data information is a length of a single link.
5. The timing drive system according to claim 4, wherein said tensioner is an electronic tensioner, said second detecting means is an image sensor, said guide member is a guide rail, said tensioning member is a tensioning rail, and said first detecting means includes a displacement sensor and a pressure sensor.
6. The timing transmission system according to claim 3, wherein the timing transmission member is a timing belt, the transmission portion is a meshing tooth, and the data information is a length between adjacent meshing teeth.
7. The timing transmission system according to claim 6, wherein said tensioner is an electronic tensioner, said second detecting means is an image sensor, said guide is an idler, said tensioning member is a tension pulley, and said first detecting means includes a displacement sensor and a pressure sensor.
8. A detection method applied to the timing drive system according to any one of claims 1 to 7, characterized by comprising:
the first detection device detects displacement information of a position, matched with the tensioning member, on the timing transmission member and tensioning force information on the timing transmission member;
and the control device adjusts the position of the plunger of the tensioner according to a first preset instruction according to the displacement information, the tension information and preset tension information so as to adjust the tension on the timing transmission part to meet the preset tension information.
9. The method of detecting a timing drive system according to claim 8, wherein the step of detecting displacement information of a position on the timing drive member where the timing drive member engages with the tension member and tension information on the timing drive member is followed; the method further comprises the following steps:
And the control device judges whether the timing transmission part is abnormal according to the displacement information and preset limit displacement information and a second preset instruction, and outputs alarm information when the timing transmission part is abnormal.
10. The detection method of a timing drive system according to claim 8, characterized by further comprising:
the second detection device detects data information of a transmission part on the timing transmission part;
the control device judges whether the timing transmission part is abnormal according to the data information and preset data information and a third preset instruction, and outputs alarm information when the timing transmission part is abnormal;
wherein: the timing transmission part is a timing transmission chain, the transmission part is a chain link, and the data information is the length of a single chain link; or the timing transmission part is a timing transmission belt, the transmission part is a meshing tooth, and the data information is the length between adjacent meshing teeth.
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| CN202210141499.2A CN114517718A (en) | 2022-02-16 | 2022-02-16 | Timing transmission system and detection method thereof |
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| CN202210141499.2A CN114517718A (en) | 2022-02-16 | 2022-02-16 | Timing transmission system and detection method thereof |
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| CN212722017U (en) * | 2020-09-08 | 2021-03-16 | 湖南道依茨动力有限公司 | Tensioner plunger detection device |
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| US20030166428A1 (en) * | 2001-10-01 | 2003-09-04 | Beardmore John Meade | Hydraulic timing chain tensioner assembly |
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Application publication date: 20220520 |