CN113124809A - Automatic measuring device for cylinder diameter of power device - Google Patents
Automatic measuring device for cylinder diameter of power device Download PDFInfo
- Publication number
- CN113124809A CN113124809A CN202110348638.4A CN202110348638A CN113124809A CN 113124809 A CN113124809 A CN 113124809A CN 202110348638 A CN202110348638 A CN 202110348638A CN 113124809 A CN113124809 A CN 113124809A
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- measuring device
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- power device
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- cylinder diameter
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- 238000006073 displacement reaction Methods 0.000 claims abstract description 39
- 230000007246 mechanism Effects 0.000 claims description 8
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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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
- G01B21/10—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 diameters
- G01B21/14—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 diameters internal diameters
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- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention provides a power device cylinder diameter automatic measuring device, comprising: the outer end of the support body is provided with a contact body which can move along the support body, the outer end of the contact body is abutted against the inner wall of the cylinder sleeve, and an elastic part is arranged between the contact body and the support body; also included is a first displacement sensor for detecting displacement of the contact body. The invention discloses an automatic measuring device for the cylinder diameter of a power device, wherein an elastic part abuts against the inner wall of a cylinder sleeve, the measuring device is moved, the elastic part is contacted with the inner wall of the cylinder sleeve at different positions, if the inner wall of the cylinder sleeve is worn, the elastic part can generate radial displacement, and the radial displacement of the elastic part is detected by a first displacement sensor, so that the wear value of the cylinder diameter can be obtained.
Description
Technical Field
The invention relates to the field of cylinder diameter measurement, in particular to an automatic cylinder diameter measuring device for a power device.
Background
The cylinder sleeve is a cylindrical part and is arranged in a cylinder body of the engine body, and the upper end of the cylinder sleeve is tightly pressed and fixed by a cylinder cover. The inner surface of the upper part of the cylinder sleeve, the piston and the cylinder cover jointly form a combustion chamber space, and the inner wall of the cylinder sleeve is directly subjected to the high temperature, high pressure and corrosion action of fuel gas; simultaneously, the relative motion of piston assembly makes the cylinder jacket inner wall bear great side thrust, and when side thrust changed, the piston can strike the cylinder jacket inner wall, aggravates its wearing and tearing.
The cylinder sleeve is one of important fixed parts of the diesel engine, and the service life, the economic performance and the power performance of the diesel engine are directly influenced by the accuracy of the inner diameters of all the parts of the cylinder sleeve. When the diesel engine runs, the piston moving part reciprocates in the cylinder sleeve to cause uneven wear on the inner circle surface of the cylinder sleeve, the wall thickness is reduced, and the roundness error and the cylindricity error are greatly increased. Generally, when the amount of wear of the liner exceeds (0.4% to 0.8%) D (D is the cylinder diameter), the combustion chamber loses its sealing property. Therefore, excessive wear of the cylinder liner deteriorates the workability, lowers the power of the diesel engine, and causes damage to other parts.
In order to ensure the navigation safety and reliability of the marine diesel engine, the wear of the cylinder liner is detected according to the requirements of the specification and the operating condition of the diesel engine, and the wear condition of the cylinder liner is mastered and controlled to prevent excessive wear. At present, the abrasion condition of the inner circle surface of the cylinder sleeve is realized by utilizing a common measuring tool, such as an inner micrometer, an inner diameter dial indicator or a random special inner diameter dial indicator. By measuring the cylinder diameter and calculating the roundness error, cylindricity error or inner diameter increment, the wear rate is compared with the specification or related standards, and finally, the judgment of whether the cylinder can be used continuously is made.
However, the marine diesel engine is large in size, the traditional mode for measuring the inner diameter of the cylinder is complicated, the accuracy is not high, and the requirement on the operation level of measuring personnel is high.
Disclosure of Invention
The invention provides an automatic measuring device for the cylinder diameter of a power device, which aims to solve the problems.
An automatic measuring device for the cylinder diameter of a power device comprises: the outer end of the support body is provided with a contact body which can move along the support body, the outer end of the contact body is abutted against the inner wall of the cylinder sleeve, and an elastic part is arranged between the contact body and the support body;
also included is a first displacement sensor for detecting displacement of the contact body.
Furthermore, one end of the support body is fixed on the main body, the other end of the support body is provided with a first round hole and a second round hole which are coaxially arranged, the contact body is arranged in the first round hole and extends out of the first round hole, a clamping piece is arranged in the second round hole, one end of the clamping piece is connected with the contact body, the other end of the clamping piece extends out of the second round hole, and the diameter of the other end of the clamping piece is larger than the aperture of the second round hole;
the aperture of the first round hole is larger than the aperture of the second round hole.
Further, the support body is provided with a groove, the groove is communicated with the second round hole, the first displacement sensor is arranged in the groove and connected with the clamping piece, and an upper cover is arranged on the groove.
Further, the contact body comprises a connecting part and a universal ball, the connecting part is arranged in the first round hole, and the universal ball is arranged at the end part of the connecting part;
the elastic piece is arranged between the connecting part and the support body and is a spring.
Further, the connecting portion have the internal thread, joint spare have with connecting portion matched with external screw thread.
Further, the branch bodies are at least three and are in the same plane.
Further, the device also comprises a positioning mechanism;
the positioning mechanism comprises a first main rod, a second main rod and a push rod, and the first main rod and the second main rod are parallel to each other;
the first main rod is fixed on the upper surface of the support body, the second main rod is fixed below the support body, the two ends of the first main rod and the second main rod are respectively provided with the push rod, the push rod extends out of the inner wall of the cylinder sleeve, the end part of the push rod is provided with a bearing wheel, and the bearing wheel is abutted against the inner wall of the cylinder sleeve.
The cylinder sleeve comprises a cylinder sleeve body, a motor is arranged on the cylinder sleeve body, a cable hole is formed in the cylinder sleeve body, the axis of the cylinder sleeve passes through the cable hole, a wire buckle is arranged at the top of the main body and connected with the motor through a flexible connecting piece, and the flexible connecting piece penetrates through the cable hole.
Furthermore, the body is provided with a control unit and a sensor cable hole, the first displacement sensor is connected with the control unit through a cable, and the cable penetrates through the sensor cable hole.
Furthermore, a second displacement sensor is arranged on the body, and a second displacement sensor wire buckle is arranged on the main body.
The invention discloses an automatic measuring device for the cylinder diameter of a power device, wherein an elastic part abuts against the inner wall of a cylinder sleeve, the measuring device is moved, the elastic part is contacted with the inner wall of the cylinder sleeve at different positions, if the inner wall of the cylinder sleeve is worn, the elastic part can generate radial displacement, and the radial displacement of the elastic part is detected by a first displacement sensor, so that the wear value of the cylinder diameter can be obtained.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an automatic cylinder diameter measuring device of a power device in an embodiment of the invention;
FIG. 2 is a schematic cross-sectional view of an automatic cylinder diameter measuring device of a power unit according to an embodiment of the present invention;
FIG. 3 is an exploded view of an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a positioning mechanism in an embodiment of the present invention;
FIG. 5 is a schematic view of a top frame structure according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of an automatic measuring device for the cylinder diameter of the power device in the embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 and 2, an automatic measuring device for the cylinder diameter of a power device comprises: the device comprises a main body 1 and a support body 2 arranged on the outer side of the main body 1, wherein a contact body 3 capable of moving along the support body 2 is arranged at the outer end of the support body 2, the outer end of the contact body 3 is abutted against the inner wall of a cylinder sleeve 4, and an elastic part 6 is arranged between the contact body 3 and the support body 2;
a first displacement sensor 5 is also included, the first displacement sensor 5 being for detecting displacement of the contact body 3. In the present embodiment, the first displacement sensor 5 is a linear displacement sensor.
The invention discloses an automatic measuring device for the cylinder diameter of a power device, wherein an elastic part abuts against the inner wall of a cylinder sleeve, the measuring device is moved, the elastic part is contacted with the inner wall of the cylinder sleeve at different positions, if the inner wall of the cylinder sleeve is worn, the elastic part can generate radial displacement, and the radial displacement of the elastic part is detected by a first displacement sensor, so that the wear value of the cylinder diameter can be obtained.
As shown in fig. 3, one end of the support 2 is fixed on the main body 1, the other end of the support has a first circular hole 21 and a second circular hole 22 which are coaxially arranged, the contact body 3 is arranged in the first circular hole 21 and extends out of the first circular hole 21, a clamping member 7 is arranged in the second circular hole 22, one end of the clamping member 7 is connected with the contact body 3, the other end of the clamping member extends out of the second circular hole 22, and the diameter of the other end of the clamping member 7 is larger than the aperture of the second circular hole 22;
the first circular hole 21 has a larger aperture than the second circular hole 22.
The connecting portion 31 has an internal thread, and the engaging member 7 has an external thread engaged with the connecting portion 31.
The joint 7 makes contact 3 block in a body 2, and first round hole 21 and second round hole 22 directly have the ladder face, and elastic component 6 is located between ladder face and the contact 3, exert the power to the cylinder liner inner wall to the contact 3, make contact 3 can paste on the cylinder liner inner wall all the time.
The support body 2 is provided with a slot 23, the slot 23 is communicated with the second round hole 22, the first displacement sensor 5 is arranged in the slot 23 and connected with the clamping piece 7, and the slot 23 is provided with an upper cover 8.
The main body 1 is provided with four sensor branch buckles and four sensor bus buckles, in the embodiment, included angles among the four support bodies 2 are 90 degrees and are located in the same plane, and each support body 2 is provided with a sensor.
The contact body 3 comprises a connecting part 31 and a universal ball 32, wherein the connecting part 31 is arranged in the first round hole 21, and the universal ball 32 is arranged at the end part of the connecting part 31;
connecting portion 31 with be equipped with between the branch body 2 elastic component 6, specifically, elastic component 6 locate connecting portion 31 with between the ladder surface, elastic component 6 is the spring.
As shown in fig. 4, in the present embodiment, a positioning mechanism 9 is further included;
the positioning mechanism 9 includes a first main lever 91, a second main lever 92, and a push rod 93, the first main lever 91 and the second main lever 92 being parallel to each other;
first mobile jib 91 is fixed in prop up the higher authority of body 2, second mobile jib 92 is fixed in prop up under the body 2, the both ends of first mobile jib 91 and second mobile jib 92 all are equipped with push rod 93, push rod 93 to the inner wall of cylinder liner 4 stretches out, the tip of push rod is equipped with bearing wheel 94, bearing wheel 94 butt in the inner wall of cylinder liner 4.
According to different cylinder diameters, different positioning mechanisms 9 are arranged, in the embodiment, 16 bearing wheels 94 are arranged, each bearing wheel 94 is attached to the inner wall of the cylinder sleeve, so that the measuring device cannot incline, and the measuring device always moves along the axial direction of the cylinder sleeve during measurement.
As shown in fig. 5, in the present embodiment, the cylinder liner further includes a top frame 10, the top frame 10 includes a body 101 disposed at an upper end of the cylinder liner 4 and a motor 102 disposed on the body 101, the body 101 has a cable hole 103, an axis of the cylinder liner 4 passes through the cable hole 103, the top of the main body 1 has a cable buckle 11, the cable buckle 11 is connected to the motor 102 through a flexible connecting member 12, and the flexible connecting member 12 passes through the cable hole 103.
The body 101 is provided with a control unit 104 and a sensor cable hole 105, the first displacement sensor 5 is connected with the control unit 104 through a cable, and the cable passes through the sensor cable hole 105.
The body 101 is provided with a second displacement sensor 106, the second displacement sensor 106 is a pull wire displacement sensor, and the main body 1 is provided with a second displacement sensor wire buckle 12.
In this embodiment, the body 101 includes four overlapping members overlapping at an opening at one end of the cylinder liner, the flexible connecting member 12 is a steel strand, and the control unit 104 is configured to control rotation of the motor 102, receive information detected by the sensor, and provide power to the sensor. It should be noted that this is not the only arrangement, and the main body 1 may be provided with a device for collecting information and a device for supplying electric energy.
The second displacement sensor 106 is used to detect the displacement of the main body 1 and accurately obtain the position of the measuring cylinder diameter.
As shown in fig. 6, the working process of the present invention is as follows: measuring the inner diameter of the cylinder sleeve as required, selecting a proper measuring device, placing the measuring device in the cylinder sleeve at the bottommost part of the cylinder sleeve, placing the top frame 10 at the opening at the top of the cylinder sleeve, and adjusting the tightness degree of the flexible connecting piece 12; starting the motor 102, lifting the main body 1 to enable the contact body 3 to move upwards along the inner wall of the cylinder sleeve, and ensuring that the contact body 3 cannot incline or deviate by a plurality of bearing wheels; during the lifting of the main body, the first displacement sensor and the second displacement sensor transmit detection data to the control unit 104; after the detection is finished, the detection data in the control unit 104 is read, and the wear condition of the inner wall of the cylinder sleeve can be obtained.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. An automatic measuring device for the cylinder diameter of a power device is characterized by comprising: the cylinder sleeve comprises a main body (1) and a support body (2) arranged on the outer side of the main body (1), wherein a contact body (3) capable of moving along the support body (2) is arranged at the outer end of the support body (2), the outer end of the contact body (3) is abutted against the inner wall of the cylinder sleeve (4), and an elastic part (6) is arranged between the contact body (3) and the support body (2);
further comprising a first displacement sensor (5), the first displacement sensor (5) being configured to detect a displacement of the contact body (3).
2. The automatic measuring device for the cylinder diameter of the power device is characterized in that one end of the support body (2) is fixed on the main body (1), the other end of the support body is provided with a first round hole (21) and a second round hole (22) which are coaxially arranged, the contact body (3) is arranged in the first round hole (21) and extends out of the first round hole (21), a clamping piece (7) is arranged in the second round hole (22), one end of the clamping piece (7) is connected with the contact body (3), the other end of the clamping piece extends out of the second round hole (22), and the diameter of the other end of the clamping piece (7) is larger than that of the second round hole (22);
the aperture of the first round hole (21) is larger than that of the second round hole (22).
3. The automatic cylinder diameter measuring device of the power device as claimed in claim 2, wherein the supporting body (2) is provided with a slot (23), the slot (23) is communicated with the second round hole (22), the first displacement sensor (5) is arranged in the slot (23) and connected with the clamping member (7), and an upper cover (8) is arranged on the slot (23).
4. An automatic measuring device for the cylinder diameter of a power device according to claim 2, characterized in that the contact body (3) comprises a connecting part (31) and a universal ball (32), the connecting part (31) is arranged in the first circular hole (21), and the universal ball (32) is arranged at the end part of the connecting part (31);
the elastic piece (6) is arranged between the connecting part (31) and the support body (2), and the elastic piece (6) is a spring.
5. An automatic measuring device for the cylinder diameter of a power device according to claim 4, characterized in that the connecting part (31) is provided with an internal thread, and the clamping piece (7) is provided with an external thread matched with the connecting part (31).
6. An automatic measuring device for the cylinder diameter of a power device according to claim 1, characterized in that the supporting bodies (2) have at least three and are in the same plane.
7. An automatic measuring device for the cylinder diameter of the power device according to claim 1, characterized by further comprising a positioning mechanism (9);
the positioning mechanism (9) comprises a first main rod (91), a second main rod (92) and a push rod (93), wherein the first main rod (91) and the second main rod (92) are parallel to each other;
first mobile jib (91) are fixed in prop up the higher authority of body (2), second mobile jib (92) are fixed in prop up below body (2), the both ends of first mobile jib (91) and second mobile jib (92) all are equipped with push rod (93), push rod (93) to the inner wall of cylinder liner (4) stretches out, the tip of push rod is equipped with bearing wheel (94), bearing wheel (94) butt in the inner wall of cylinder liner (4).
8. The automatic measuring device for the cylinder diameter of the power device according to claim 1, further comprising a top frame (10), wherein the top frame (10) comprises a body (101) arranged at the upper end of the cylinder sleeve (4) and a motor (102) arranged on the body (101), the body (101) is provided with a cable hole (103), the axis of the cylinder sleeve (4) passes through the cable hole (103), the top of the main body (1) is provided with a wire buckle (11), the wire buckle (11) is connected with the motor (102) through a flexible connecting piece (12), and the flexible connecting piece (12) penetrates through the cable hole (103).
9. An automatic measuring device for the cylinder diameter of a power device according to claim 8, characterized in that the body (101) is provided with a control unit (104) and a sensor cable hole (105), the first displacement sensor (5) is connected with the control unit (104) through a cable, and the cable passes through the sensor cable hole (105).
10. The automatic cylinder diameter measuring device of the power device as claimed in claim 8, characterized in that the body (101) is provided with a second displacement sensor (106), and the main body (1) is provided with a second displacement sensor wire buckle (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110348638.4A CN113124809A (en) | 2021-03-31 | 2021-03-31 | Automatic measuring device for cylinder diameter of power device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110348638.4A CN113124809A (en) | 2021-03-31 | 2021-03-31 | Automatic measuring device for cylinder diameter of power device |
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| Publication Number | Publication Date |
|---|---|
| CN113124809A true CN113124809A (en) | 2021-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110348638.4A Pending CN113124809A (en) | 2021-03-31 | 2021-03-31 | Automatic measuring device for cylinder diameter of power device |
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| Country | Link |
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| CN (1) | CN113124809A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113701693A (en) * | 2021-10-20 | 2021-11-26 | 机械工业勘察设计研究院有限公司 | Multi-point aperture displacement measuring device and measuring method |
| CN113758402A (en) * | 2021-09-08 | 2021-12-07 | 安徽维克多自动化设备有限公司 | High-precision online intelligent detection sensor |
| CN117704922A (en) * | 2024-02-01 | 2024-03-15 | 山东鼎晟装饰工程有限公司 | Pile hole aperture detection device for building engineering construction |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006170676A (en) * | 2004-12-14 | 2006-06-29 | Nissan Motor Co Ltd | Device of measuring cylinder bore inner surface |
| CN205333042U (en) * | 2016-01-27 | 2016-06-22 | 张和平 | Cylinder body inside diameter measurement device that has height dimensions |
| CN106052617A (en) * | 2016-08-21 | 2016-10-26 | 淮安信息职业技术学院 | Engine cylinder diameter measuring device |
| CN107044841A (en) * | 2017-04-26 | 2017-08-15 | 中原内配集团股份有限公司 | Cylinder cover inner hole diameter measuring device and cylinder cover inner hole system for detecting diameter |
| CN208520354U (en) * | 2018-08-06 | 2019-02-19 | 江苏紫金动力股份有限公司 | A kind of cylinder sleeve of engine inner diameter measuring device |
| CN112197731A (en) * | 2020-11-30 | 2021-01-08 | 江苏集萃精凯高端装备技术有限公司 | Inner diameter detection assembly |
-
2021
- 2021-03-31 CN CN202110348638.4A patent/CN113124809A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006170676A (en) * | 2004-12-14 | 2006-06-29 | Nissan Motor Co Ltd | Device of measuring cylinder bore inner surface |
| CN205333042U (en) * | 2016-01-27 | 2016-06-22 | 张和平 | Cylinder body inside diameter measurement device that has height dimensions |
| CN106052617A (en) * | 2016-08-21 | 2016-10-26 | 淮安信息职业技术学院 | Engine cylinder diameter measuring device |
| CN107044841A (en) * | 2017-04-26 | 2017-08-15 | 中原内配集团股份有限公司 | Cylinder cover inner hole diameter measuring device and cylinder cover inner hole system for detecting diameter |
| CN208520354U (en) * | 2018-08-06 | 2019-02-19 | 江苏紫金动力股份有限公司 | A kind of cylinder sleeve of engine inner diameter measuring device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113758402A (en) * | 2021-09-08 | 2021-12-07 | 安徽维克多自动化设备有限公司 | High-precision online intelligent detection sensor |
| CN113758402B (en) * | 2021-09-08 | 2024-01-30 | 安徽维克多自动化设备有限公司 | High-precision online intelligent detection sensor |
| CN113701693A (en) * | 2021-10-20 | 2021-11-26 | 机械工业勘察设计研究院有限公司 | Multi-point aperture displacement measuring device and measuring method |
| CN117704922A (en) * | 2024-02-01 | 2024-03-15 | 山东鼎晟装饰工程有限公司 | Pile hole aperture detection device for building engineering construction |
| CN117704922B (en) * | 2024-02-01 | 2024-04-26 | 山东鼎晟装饰工程有限公司 | Pile hole aperture detection device for building engineering construction |
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Application publication date: 20210716 |