CN110778397B - Device and method for acquiring thickness of cylinder gasket - Google Patents

Device and method for acquiring thickness of cylinder gasket Download PDF

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Publication number
CN110778397B
CN110778397B CN201910889274.3A CN201910889274A CN110778397B CN 110778397 B CN110778397 B CN 110778397B CN 201910889274 A CN201910889274 A CN 201910889274A CN 110778397 B CN110778397 B CN 110778397B
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China
Prior art keywords
thickness
cylinder
piston
gasket
position information
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CN201910889274.3A
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CN110778397A (en
Inventor
李旺
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Weichai Power Co Ltd
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Weichai Power Co Ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B77/00Component parts, details or accessories, not otherwise provided for
    • F02B77/08Safety, indicating or supervising devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B77/00Component parts, details or accessories, not otherwise provided for
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/02Measuring 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
    • G01B21/08Measuring 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 for measuring thickness

Abstract

The invention particularly relates to a device and a method for acquiring the thickness of a cylinder gasket. The device setting that obtains cylinder gasket thickness is in the top of cylinder, and it includes: the sensor extends into the cylinder, is in contact with a piston in the cylinder, and is used for acquiring position information of the piston; and the control processor is electrically connected with the sensor and used for calculating the thickness of the cylinder gasket according to the position information. According to the device for acquiring the thickness of the cylinder gasket, the position information of the piston is acquired through the sensor and is transmitted to the control processor, the control processor screens out the position information of the top dead center of the piston from the position information, and the thickness of the cylinder gasket is calculated according to the position information of the top dead center. The device need not manual measurement, and the calculating speed is fast, has improved efficiency, satisfies batch production's demand.

Description

Device and method for acquiring thickness of cylinder gasket
Technical Field
The invention belongs to the technical field of engines, and particularly relates to a device and a method for obtaining the thickness of a cylinder gasket.
Background
The combustion chamber is composed of the top of the piston and the bottom of the cylinder cover, and the highest point of each piston is different under the influence of crankshaft deviation, piston deviation, connecting rod deviation and the like, so that the distances from the cylinder cover and an oil sprayer arranged on the cylinder cover to the piston are different. The distance of the fuel injector to the piston is typically adjusted by adding cylinder spacers of different thicknesses between the cylinder head and the block.
In the prior art, a manual barring is usually adopted to reach the top dead center of a piston, and then a cylinder gasket with proper thickness is selected by measuring the distance from the top dead center to a cylinder cover, so that the optimal distance from a fuel injector to the piston is ensured. The existing engine generally comprises a plurality of cylinders, the process is repeated for a long time, the efficiency is low, and the engine cannot be applied to mass production.
Disclosure of Invention
The invention aims to at least solve the problem of low efficiency in obtaining the thickness of a cylinder gasket. The purpose is realized by the following technical scheme:
the invention provides a device for acquiring the thickness of a cylinder gasket, which is arranged above a cylinder and comprises: the sensor extends into the cylinder, is in contact with a piston in the cylinder, and is used for acquiring position information of the piston; and the control processor is electrically connected with the sensor and used for calculating the thickness of the cylinder gasket according to the position information.
According to the device for acquiring the thickness of the cylinder gasket, disclosed by the embodiment of the invention, the sensor is in contact with the piston, the sensor acquires the position information of the piston along with the up-and-down movement of the piston and transmits the position information to the control processor, the control processor screens out the position information of the top dead center of the piston from the position information, and the thickness of the cylinder gasket is calculated according to the position information of the top dead center. The device need not manual measurement, and the calculating speed is fast, has improved efficiency, satisfies batch production's demand.
In addition, the device for acquiring the thickness of the cylinder gasket according to the embodiment of the invention can also have the following technical characteristics:
in some embodiments of the present invention, the control system further comprises a motor, the motor is connected to the cylinder, the motor is used for driving the piston to move, and the motor is electrically connected to the control processor.
In some embodiments of the present invention, the mobile terminal further comprises a wire harness, and two ends of the wire harness are respectively connected with the inductor and the control processor.
In some embodiments of the invention, the wiring harness is retractable.
In some embodiments of the present invention, the data processor further comprises a wire rail, wherein the wire harness is arranged in the wire rail in a penetrating way, and one end of the wire rail is connected with the data processor.
In some embodiments of the invention, the sensor further comprises a fixing bracket connected above the cylinder, and the sensor is arranged in the fixing bracket in a penetrating way.
In some embodiments of the present invention, the inductor is plural.
In another aspect, the present invention provides a method for obtaining a thickness of a cylinder gasket, which is implemented based on the apparatus for obtaining a thickness of a cylinder gasket in any of the above embodiments, and includes the following steps:
s1: the control processor sends a rotation instruction to the motor;
s2: the sensor receives position information of the piston;
s3: the control processor screens out the position information of the top dead center of the piston from the position information;
s4: the control processor calculates the thickness of the required cylinder gasket according to the position information of the top dead center;
s5: and the control processor outputs the information of the thickness of the required cylinder gasket.
According to the method for acquiring the thickness of the cylinder gasket, the control processor controls the motor to rotate so as to drive the piston to move up and down, so that the sensor receives position information of the piston, the control processor screens out position information of a top dead center from the acquired information, and the thickness of the cylinder gasket is calculated according to the position information of the top dead center. According to the method, the calculation process can be completed only by operating the control processor, manual measurement is not needed, the efficiency is improved, the thickness of the cylinder gasket can be obtained more quickly, and batch production is met.
In addition, the method for acquiring the thickness of the cylinder gasket according to the embodiment of the invention can also have the following technical characteristics:
in some embodiments of the invention, a piston position-shim thickness matching table is provided in the control processor for matching the thickness of the cylinder shim.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like parts are designated by like reference numerals throughout the drawings. In the drawings:
FIG. 1 is a schematic overall structure diagram of an apparatus for obtaining a cylinder gasket thickness according to an embodiment of the present invention;
FIG. 2 is a flowchart of a method for obtaining a cylinder gasket thickness according to an embodiment of the invention.
The reference symbols in the drawings denote the following:
10: device for acquiring thickness of cylinder gasket, 11: inductor, 12: control processor, 13: a motor, 14: wire harness, 15: a wire rail, 16 fixed support;
20: cylinder, 21: piston, 22: crankshaft, 23: a connecting rod.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof.
Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" can include both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
As shown in fig. 1, an embodiment of a first aspect of the present invention provides an apparatus 10 for obtaining a cylinder gasket thickness, where the apparatus 10 for obtaining a cylinder gasket thickness is disposed above a cylinder 20, and includes: the device comprises a sensor 11 and a control processor 12, wherein the sensor 11 extends into a cylinder 20, the sensor 11 is in contact with a piston 21 in the cylinder 20, and the sensor 11 is used for acquiring position information of the piston 21; the control processor 12 is electrically connected with the sensor 11, and the control processor 12 is used for calculating the thickness of the cylinder gasket according to the position information.
According to the device 10 for acquiring the thickness of the cylinder gasket, the sensor 11 is in contact with the piston 21, the sensor 11 acquires the position information of the piston 21 along with the up-and-down movement of the piston 21 and transmits the position information to the control processor 12, the control processor 12 screens out the position information of the top dead center of the piston 21 from the position information, and the thickness of the cylinder gasket is calculated according to the position information of the top dead center. The device calculation speed is fast, need not manual measurement, has improved efficiency, reachs the thickness of cylinder gasket sooner, satisfies batch production.
In some embodiments of the present invention, the device 10 for obtaining the thickness of the cylinder gasket further includes a motor 13, the motor 13 is connected to the cylinder 20, the motor 13 is used for driving the piston 21 to move, the motor 13 is electrically connected to the control processor 12, and the control processor 12 can drive the motor 13 to rotate, so as to drive the piston 21 to move up and down. Specifically, the cylinder 20 further includes a crankshaft 22 and a connecting rod 23, and the motor 13 drives the piston 21 to move up and down through the crankshaft 22 and the connecting rod 23.
In some embodiments of the present invention, the device 10 for obtaining the thickness of the cylinder gasket further comprises a wire harness 14, two ends of the wire harness 14 are respectively connected with the sensor 11 and the control processor 12, and the wire harness 14 is used for transmitting information.
In some embodiments of the invention, the wiring harness 14 is retractable to accommodate up and down movement of the piston 21.
In some embodiments of the present invention, the device 10 for obtaining the thickness of the cylinder gasket further includes a wire rail 15, the wire harness 14 is inserted into the wire rail 15, one end of the wire rail 15 is connected to the data processor 12, the wire rail 15 can protect the wire harness 14 to prevent the wire harness 14 from being damaged, and the wire rail 15 makes the overall structure cleaner.
In some embodiments of the present invention, the apparatus 10 for obtaining a cylinder gasket thickness further includes a fixing bracket 16, the fixing bracket 16 is connected above the cylinder 20, the inductor 11 is disposed in the fixing bracket 16 in a penetrating manner, and the fixing bracket 16 is used for guiding the inductor 11 so that the inductor 11 can move up and down along the fixing bracket 16.
In some embodiments of the present invention, 2, 4, 6 or more sensors 11 may be provided according to the number of cylinders, and the plurality of sensors 11 simultaneously measure the position information of the piston 21, so that the calculation efficiency of the apparatus 10 for obtaining the cylinder gasket thickness is higher.
As shown in fig. 2, an embodiment of another aspect of the present invention provides a method for obtaining a cylinder gasket thickness, which is implemented based on the apparatus 10 for obtaining a cylinder gasket thickness in any one of the above embodiments, and includes the following steps:
s1: the control processor 12 issues a rotation command to the motor 13.
S2: the sensor 11 receives position information of the piston 21 according to the movement of the piston 21;
s3: the control processor 12 screens out the position information of the top dead center of the piston 21 from the position information;
s4: the control processor 12 calculates the thickness of the required cylinder gasket according to the position information of the top dead center;
s5: the control processor 12 outputs the information of the thickness of the cylinder gasket required by calculation.
According to the method for acquiring the thickness of the cylinder gasket, the control processor 12 controls the motor 13 to rotate so as to drive the piston 21 to move up and down, so that the sensor 11 receives the position information of the piston 21, the control processor 12 screens out the position information of the top dead center from the acquired position information, and the thickness of the cylinder gasket is calculated according to the position information of the top dead center. According to the method, the process of obtaining the thickness of the cylinder gasket can be completed only by operating the control processor 11, manual measurement is not needed, the efficiency is improved, the thickness of the cylinder gasket can be obtained more quickly, and batch production is met.
In some embodiments of the present invention, a piston position-gasket thickness matching table is provided in the control processor 12, and the control processor 12 finds the thickness of the cylinder gasket corresponding to the piston position-gasket thickness matching table according to the acquired position information of the top dead center.
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 changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (9)

1. The utility model provides an acquire device of cylinder gasket thickness, acquire device setting of cylinder gasket thickness in the top of cylinder, its characterized in that includes:
the sensor extends into the cylinder, is in contact with a piston in the cylinder, and is used for acquiring position information of the piston during up-and-down movement;
the control processor is electrically connected with the sensor and used for screening top dead center position information in the position information, a piston position-gasket thickness matching table is arranged in the control processor, and the control processor acquires the thickness of the cylinder gasket according to the top dead center position information and the piston position-gasket thickness matching table.
2. The device for obtaining the thickness of the gasket of the cylinder as claimed in claim 1, further comprising a motor, wherein the motor is connected with the cylinder, the motor is used for driving the piston to move, and the motor is electrically connected with the control processor.
3. The device for acquiring the thickness of the cylinder gasket as claimed in claim 1, further comprising a wire harness, wherein two ends of the wire harness are respectively connected with the inductor and the control processor.
4. The device for obtaining the thickness of the cylinder gasket as claimed in claim 3, wherein the wire harness is retractable.
5. The device for acquiring the thickness of the cylinder gasket as claimed in claim 3, further comprising a wire rail, wherein the wire harness is arranged in the wire rail in a penetrating manner, and one end of the wire rail is connected with the control processor.
6. The device for acquiring the thickness of the cylinder gasket as claimed in claim 1, further comprising a fixing bracket connected above the cylinder, wherein the sensor is arranged in the fixing bracket in a penetrating manner.
7. The apparatus for obtaining cylinder gasket thickness according to claim 1, wherein said inductor is plural.
8. A method of obtaining a cylinder gasket thickness, which is implemented based on the apparatus for obtaining a cylinder gasket thickness according to any one of claims 1 to 7, characterized by comprising the steps of:
s1: the sensor receives position information of the piston according to the movement of the piston;
s2: the control processor screens out the position information of the top dead center of the piston from the position information;
s3: the control processor calculates the thickness of the required cylinder gasket according to the position information of the top dead center;
s4: and the control processor outputs the information of the thickness of the required cylinder gasket.
9. The method for obtaining the thickness of the cylinder gasket as claimed in claim 8, wherein a piston position-gasket thickness matching table is provided in the control processor, and the piston position-gasket thickness matching table is used for matching the thickness of the cylinder gasket.
CN201910889274.3A 2019-09-19 2019-09-19 Device and method for acquiring thickness of cylinder gasket Active CN110778397B (en)

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CN110778397B true CN110778397B (en) 2021-05-18

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Family Cites Families (11)

* Cited by examiner, † Cited by third party
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JPH0741845Y2 (en) * 1987-04-06 1995-09-27 トヨタ自動車株式会社 Shim removal device
FR2764974B1 (en) * 1997-06-23 1999-07-30 Facom SENSOR HOLDER AND TOP PISTON MEASUREMENT DEVICE
FR2867515B1 (en) * 2004-03-11 2006-06-02 Vianney Rabhi ADJUSTING DEVICE FOR VARIABLE VOLUMETRIC RATIO ENGINE
US9079213B2 (en) * 2012-06-29 2015-07-14 Ford Global Technologies, Llc Method of determining coating uniformity of a coated surface
CN103424053A (en) * 2013-07-16 2013-12-04 东风朝阳朝柴动力有限公司 Device for measuring projection height of engine piston
CN203798296U (en) * 2014-02-25 2014-08-27 浙江同泰泵业有限公司 Top dead center and oil supply advance angle calibration tooling
CN108759617B (en) * 2018-05-25 2020-07-24 永康市小菜丫厨具有限公司 Engine piston cylinder discharge amount detection device and adjustment method
CN208872214U (en) * 2018-10-15 2019-05-17 中石化石油工程技术服务有限公司 A kind of device of accurate determining engine cylinder head system spacer thickness
CN209055045U (en) * 2018-11-29 2019-07-02 厦门迈通科技有限公司 The measuring device of spacer thickness in a kind of compressor crankshaft structure
CN109990693A (en) * 2019-05-06 2019-07-09 广西玉柴机器股份有限公司 A kind of method and device detecting piston top dead center

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