CN203489817U - Engine cylinder measuring tool - Google Patents
Engine cylinder measuring tool Download PDFInfo
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- CN203489817U CN203489817U CN201320425652.0U CN201320425652U CN203489817U CN 203489817 U CN203489817 U CN 203489817U CN 201320425652 U CN201320425652 U CN 201320425652U CN 203489817 U CN203489817 U CN 203489817U
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- engine cylinder
- cylinder
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Abstract
The utility model discloses an engine cylinder measuring tool which comprises the following components: a measuring device, a calibrating member and a standard member. The measuring device comprises a meter base which is a cylinder with a chamber. The cylinder is provided with a dial indicator. A measuring rod of the dial indicator is arranged in the chamber. A touch pin which can move vertically is arranged below a measuring head of the dial indicator. A spring is sleeved outside the touch pin. When the engine cylinder is measured, the measuring device is calibrated through the calibrating member; and then, a measuring mandrel of the standard member is inserted into a main shaft hole of the engine cylinder. The measuring device is placed into the engine cylinder through a cylinder hole on the surface of the engine cylinder. The touch pin contacts with the surface of the cylinder body of the standard member under function of the spring. An error between a standard dimension and a distance between the top surface of the engine cylinder and the center of the main shaft hole is determined according to the reading number of the dial indicator. The engine cylinder measuring tool provided by the utility model can improve measurement efficiency.
Description
Technical field
The utility model relates to pick-up unit technical field, relates in particular to a kind of engine cylinder-body measurer.
Background technology
Engine is the heart of automobile, for the walking of automobile provides power, is being related to dynamic property, economy, the feature of environmental protection of automobile.In simple terms, engine is exactly an energy transfer mechanism, is about to the heat energy of gasoline or diesel oil or rock gas, by the gas expansion that burns in sealing air cylinder, promotes piston work done, changes mechanical energy into, and this is the most basic principle of engine.
Ratio of compression is a very important concept in engine, and its expression enters the compressed degree of gas in cylinder, i.e. the ratio of the volume of cylinder (being combustion chamber volume) after the cylinder total volume before compression and compression.Wherein, cylinder total volume comprises combustion chamber volume and working volume, because working volume is guaranteed by piston and bent axle, by cylinder deck, the distance (as the distance of double arrowed line indication in Fig. 1) apart from spindle hole center guarantees combustion chamber volume, and the height of distance directly affects the size of combustion chamber volume.
It is smooth-going and stable that suitable ratio of compression just can make the running of engine be able to, so guarantee that cylinder deck is a very important characterisitic parameter apart from the distance at spindle hole center.
In the prior art, typically use this parameter of three-dimensional coordinates measurement, the stand-by period of measurement is long, measures the frequency low, can not find in time the dimensional problem of processing.
Utility model content
The utility model provides a kind of engine cylinder-body measurer, to improve measurement efficiency.
For this reason, the utility model provides following technical scheme:
An engine cylinder-body measurer, comprising: measurement mechanism, calibrating device and standard component;
Described measurement mechanism comprises: gauge stand, and described gauge stand is the cylinder with cavity, on described cylinder, dial gauge is installed, the sounding rod of described dial gauge is positioned at described cavity; Below the measuring head of described dial gauge, be provided with contact pin moving up and down, described contact pin is socketed with spring outward;
Described calibrating device comprises: base and be arranged on the calibration block on described base, and described base is solid cylinder, described calibration block is hollow cylinder;
Described standard component comprises the air plug gauge suitable with the spindle hole of engine cylinder-body.
Preferably, the position near upper end on described cylinder is provided with trapezoid boss, for be stuck in described calibration block when described measurement mechanism is calibrated; On the cylinder above described trapezoid boss, watch glasses is installed; Described dial gauge is positioned at described watch glasses.
Preferably, described dial gauge is fixed on described watch glasses by tang screw.
Preferably, at described watch glasses inside surface, be also laid with broached bushing.
Preferably, on the top of described cavity, be provided with lining, for eliminating the tolerance clearance of described contact pin and described cavity; In the bottom of described cavity, be provided with lower guide pin bushing, for moving up and down of described contact pin play the guiding role.
Preferably, described lower guide pin bushing is fixed in described cavity by trip bolt.
Preferably, the position near lower end on described contact pin is provided with positive stop lug boss, for coordinating with the upper surface of described lower guide pin bushing, limits the distance that described contact pin moves down.
Preferably, on described base and described calibration block, be provided with suitable screw, for described calibration block being fixed on to described base by hexagon socket cap head screw.
Preferably, described standard component also comprises: mandrel handle, is connected with described air plug gauge by the mode of being spirally connected.
Preferably, at described mandrel handle and described air plug gauge joint, be also provided with catch.
The engine cylinder-body measurer that the utility model provides, by dial gauge and peripheral accessory thereof, is arranged on the contact pin moving up and down of measuring head below and the spring composition measuring apparatus of the outer socket of contact pin of dial gauge, is aided with calibrating device and standard component simultaneously.When engine cylinder-body is measured, first utilize calibrating device to calibrate described measurement mechanism; Then, standard component is inserted in the spindle hole of engine cylinder-body, measurement mechanism is put into from the cylinder hole of engine cylinder surface, contact pin contacts with the damaged surface of described standard component under the effect of spring, according to the reading of dial gauge, determines that engine cylinder-body end face is apart from distance and the standard-sized error at spindle hole center.The engine cylinder-body measurer that utilizes the utility model to provide, can guarantee reliability and the accuracy measured; And it is simple in structure, workable, can effectively improve measurement efficiency, reduce and measure the stand-by period.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, to the accompanying drawing of required use in embodiment be briefly described below, apparently, the accompanying drawing the following describes is only some embodiment that record in the utility model, for those of ordinary skills, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is existing engine cylinder-body diagrammatic cross-section;
Fig. 2 is the cut-open view of measurement mechanism in the utility model engine cylinder-body measurer;
Fig. 3 is the cut-open view of the utility model engine cylinder-body measurer alignment part;
Fig. 4 is the upward view of the utility model engine cylinder-body measurer alignment part;
Fig. 5 is the front view of angle seat in the utility model engine cylinder-body measurer;
Fig. 6 is the vertical view of angle seat in the utility model engine cylinder-body measurer;
Fig. 7 is the side view of angle seat in the utility model engine cylinder-body measurer;
Fig. 8 is the structural representation of the utility model engine cylinder-body measurer Plays part;
Fig. 9 is the structural representation of air plug gauge in the utility model engine cylinder-body measurer;
The structural representation of mandrel handle in Figure 10 the utility model engine cylinder-body measurer;
Figure 11 is wiring layout when measurement mechanism is calibrated in the utility model;
Figure 12 is wiring layout when engine cylinder-body is measured in the utility model.
Drawing reference numeral:
1, measurement mechanism; 2, calibrating device; 3, standard component;
101, dial gauge; 102, tang screw; 103, broached bushing; 104, sounding rod
111, gauge stand; 112, watch glasses; 113; Angle seat; 114, contact pin; 115, upper lining;
116, spring; 117, lower guide pin bushing; 118, trip bolt; 119, positive stop lug boss;
171, guide pin bushing upper surface; 172, guide pin bushing lower surface;
21, base; 22, calibration block; 23, hexagon socket cap head screw;
31, air plug gauge; 32, mandrel handle; 33, catch.
Embodiment
In order to make those skilled in the art person understand better the scheme of the utility model embodiment, below in conjunction with drawings and embodiments, the utility model embodiment is described in further detail.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", orientation or the position relationship of indications such as " outward " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model.
In the utility model, unless otherwise clearly defined and limited, the terms such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can understand as the case may be the concrete meaning of above-mentioned term in the utility model.
The utility model engine cylinder-body measurer comprises three independently parts, is respectively: measurement mechanism, calibrating device and standard component.
As shown in Figure 2, be the cut-open view of measurement mechanism in the utility model engine cylinder-body measurer.
Measurement mechanism 1 comprises: dial gauge 101, gauge stand 111, contact pin 114 and spring 116.
As shown in Figure 2, gauge stand 111 plays the supporting role to dial gauge 101, can be specifically the cylinder with cavity, and dial gauge 101 is arranged on this cylinder, and the sounding rod 104 of dial gauge 101 is positioned at described cavity.Contact pin 114 is arranged on the measuring head below of dial gauge 101, and spring 116 is cylinder-shaped compression spring, and it is socketed in outside contact pin 114.
In the utility model, contact pin 114 plays to the effect of dial gauge 104 transmission power and position, and it can move up and down, and what move down dependence is the gravity of measuring mechanism and the elastic force of spring 116, and what move up dependence is external force.
Utilizing before this measurement mechanism measures engine cylinder-body, need to utilize described calibrating device to calibrate zeroing to its dial gauge 101.
As shown in Figure 3, be the cut-open view of the utility model engine cylinder-body measurer alignment part, Fig. 4 is its upward view.
Calibrating device 2 comprises: base 21 and be arranged on the calibration block 22 on base 21.Wherein, base 21 is solid cylinder, and calibration block 22 is hollow cylinder.
It should be noted that, in concrete application, the processing on the upper and lower surface of base 21 and calibration block will meet corresponding accuracy requirement, such as, the roughness on upper and lower surface requires Ra0.4, and dimensional accuracy error is in 0.005mm.In addition, the installation of calibration block 22 can have various ways, such as shown in Figure 3, can on base 21 and calibration block 22, suitable screw be set, and by hexagon socket cap head screw 23, calibration block 22 is fixed on base 21.Certainly, calibration block 22 and base 21 can also be one machine-shaping structures, and to this utility model, embodiment does not limit.
In order to coordinate the said structure of calibrating device, the convenient calibration to measurement mechanism 1, as shown in Figure 2, the position near upper end on the cylinder of gauge stand 111 is provided with trapezoid boss, for be stuck in calibration block 2 when described measurement mechanism is calibrated.
In addition, in order to prevent, in measuring process, dial gauge 101 is produced to collision, affect it and use, on the cylinder above described trapezoid boss, also watch glasses 112 can be installed, dial gauge 101 is placed in watch glasses 112, thereby plays the protective effect to dial gauge 101.
Particularly, watch glasses 112 can be fixed on gauge stand 111 by angle seat 113, and Fig. 5 shows the front view of this angle seat, and Fig. 6 is its vertical view, and Fig. 7 is its side view.Certainly, described angle seat 113 can be also other structure, and to this utility model, embodiment does not limit.Dial gauge 101 can be fixed on watch glasses 112 by tang screw 102.
In addition, at watch glasses 112 inside surfaces, also can lay broached bushing 103, play and eliminate tolerance clearance and the protective action to dial gauge 101.Broached bushing 103 can adopt the modifier treatment of 45# steel, and also available copper alloy, with dial gauge sounding rod 104 clearance fit, is fixed with opening screw.
Continuation, with reference to Fig. 2, in measurement mechanism 1 of the present utility model, is provided with lining 115 on the cylinder cavity top of described gauge stand 111, for eliminating the tolerance clearance of contact pin 114 and described cavity; In the bottom of described cavity, be provided with lower guide pin bushing 117, for moving up and down of contact pin 114 play the guiding role.Wherein, the downward displacement of guide pin bushing upper surface 171 restriction contact pin 114, the displacement that guide pin bushing lower surface 172 restriction contact pins 114 make progress.
Particularly, upper lining 115 and lower guide pin bushing 117 can adopt the modifier treatment of 45# steel.
In addition, the position near lower end on contact pin 114 arranges positive stop lug boss 119, coordinates the distance moving down to limit contact pin 114 with the upper surface of lower guide pin bushing 117.
It should be noted that, positive stop lug boss 119 can determine according to measurement range with the arranging of distance of lower guide pin bushing 117, is guaranteeing that contact pin 114 moves up and down meet measurement tolerance scope in the situation that, can reduce this distance with reduction measuring staff manufacture difficulty as far as possible.
When assembling, first upper lining 115 is pressed in the cylinder cavity of gauge stand 111 from top; Then from bottom, pack contact pin 114 and spring 116 into, be pressed into lower guide pin bushing 117 and with holding screw 118, lower guide pin bushing 117 compressed.Then, then angle seat 113 is contained on gauge stand 111, loads onto broached bushing 103 and dial gauge watch glasses 112, the sounding rod of dial gauge 101 104 is contacted with contact pin 114.
As shown in Figure 8, be the structural representation of the utility model engine cylinder-body measurer Plays part.
In this embodiment, standard component 3 comprises the air plug gauge 31 suitable with the spindle hole of engine cylinder-body, and its structure as shown in Figure 9, is a right cylinder.Due to when engine cylinder-body is measured, described air plug gauge 31 need to be inserted in the spindle hole of engine cylinder-body, therefore, for convenient, insert, can do chamfered to this cylindrical insertion end end face man-hour adding, or former and later two end faces are all done chamfered.In addition, the face of cylinder of air plug gauge 31 also needs to meet certain accuracy requirement.
For the ease of operation, on air plug gauge 31, a mandrel handle 32 also can be set, its structure is as shown in figure 10.Correspondingly, in one end of air plug gauge 31, mounting hole is set, one end of mandrel handle 32 is inserted in this mounting hole fixing.Such as, mandrel handle 32 can be designed to two sections of column structures that diameter is different, thinner one section processes external thread, in the mounting hole of air plug gauge 31, processes internal thread, and mandrel handle 32 is connected by the mode of being spirally connected with air plug gauge 31.In addition, on thicker a section of mandrel handle 32, process hobboing cutter decorative pattern, so that hold, prevent from skidding when operation.
As shown in Figure 8, excessive in order to prevent from operating when air plug gauge 31 inserts in the spindle hole of engine cylinder-bodies, can also catch 33 be set in mandrel handle 32 and air plug gauge 31 joints.In when assembling, can first catch 33 be enclosed within on mandrel handle 32, then the link of mandrel handle 32 screwed in the mounting hole of air plug gauge 31 and tighten.
Structure based on above-mentioned each parts, goes on to say below and utilizes the measuring process of the utility model to engine cylinder-body.
Before mention, when engine cylinder-body is measured, need to first with 2 pairs of measurement mechanisms 1 of calibrating device, calibrate.
As shown in figure 11, be wiring layout when measurement mechanism is calibrated in the utility model.
When calibration, measurement mechanism 1 need to be put into the calibration block 22 of calibrating device 2, the hypomere of the trapezoid boss of gauge stand 111 is placed in calibration block 22, the lower surface of epimere (as reference field) joins with the upper surface of calibration block 22, with hand, pin the upper surface of described trapezoid boss downwards, the inside surface of the base 21 of the top and calibrating device 2 of contact pin 114 contacts, and now, the inside surface of base 21 is as reference field.
Due to when being subject to downward pressure, described reference field can be given 114 1 power that make progress of contact pin, make contact pin 114 promote the gauge outfit of dial gauge 104, thereby drive the indicator of dial gauge 104 to rotate, adjustment form is for zero, and the state of the measurement mechanism after zeroing is standard-sized state as engine crankshaft hole to cylinder deck.
After measurement mechanism 1 is calibrated, can start the measurement to engine cylinder-body.As shown in figure 12, be wiring layout when engine cylinder-body is measured in the utility model.
First, the air plug gauge of standard component 3 31 is inserted in the spindle hole of engine cylinder-body, measurement mechanism 1 is put into from the cylinder hole of engine cylinder surface.Equally, with hand, pin the upper surface of the trapezoid boss of gauge stand 111 downwards, the reference field (being the lower surface of trapezoid boss epimere) of measurement mechanism 1 is contacted with cylinder hole surface gapless.The top of contact pin 114 contacts with the damaged surface of standard component 3 under the effect of spring 116, it should be noted that, need to be by the top most significant end that touches damaged surface of contact pin 114, now, can determine that engine cylinder-body end face is apart from distance and the standard-sized error at spindle hole center according to the reading of described dial gauge.
As shown in figure 12, wherein, a=b+d/2-dial gauge reading, wherein d is axle diameter, a be engine crankshaft hole to the distance of cylinder deck, the standard size of calibrating above.
According to above-mentioned formula, can obtain the reading of dial gauge.If dial gauge reading, within the scope of 0～-0.1mm, judges that workpiece size is qualified.
As can be seen here, the engine cylinder-body measurer that utilizes the utility model to provide, can guarantee reliability and the accuracy measured; And it is simple in structure, workable, can effectively improve measurement efficiency, reduce and measure the stand-by period.
Above the utility model embodiment is described in detail, has applied embodiment herein the utility model is set forth, the explanation of above embodiment is just for helping to understand method and apparatus of the present utility model; , for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model meanwhile.
Claims (10)
1. an engine cylinder-body measurer, is characterized in that, comprising: measurement mechanism, calibrating device and standard component;
Described measurement mechanism comprises: gauge stand, and described gauge stand is the cylinder with cavity, on described cylinder, dial gauge is installed, the sounding rod of described dial gauge is positioned at described cavity; Below the measuring head of described dial gauge, be provided with contact pin moving up and down, described contact pin is socketed with spring outward;
Described calibrating device comprises: base and be arranged on the calibration block on described base, and described base is solid cylinder, described calibration block is hollow cylinder;
Described standard component comprises the air plug gauge suitable with the spindle hole of engine cylinder-body.
2. engine cylinder-body measurer according to claim 1, is characterized in that, the position near upper end on described cylinder is provided with trapezoid boss, for be stuck in described calibration block when described measurement mechanism is calibrated; On the cylinder above described trapezoid boss, watch glasses is installed; Described dial gauge is positioned at described watch glasses.
3. engine cylinder-body measurer according to claim 2, is characterized in that, described dial gauge is fixed on described watch glasses by tang screw.
4. engine cylinder-body measurer according to claim 2, is characterized in that, at described watch glasses inside surface, is also laid with broached bushing.
5. engine cylinder-body measurer according to claim 2, is characterized in that, on the top of described cavity, is provided with lining, for eliminating the tolerance clearance of described contact pin and described cavity; In the bottom of described cavity, be provided with lower guide pin bushing, for moving up and down of described contact pin play the guiding role.
6. engine cylinder-body measurer according to claim 5, is characterized in that, described lower guide pin bushing is fixed in described cavity by trip bolt.
7. engine cylinder-body measurer according to claim 5, is characterized in that, the position near lower end on described contact pin is provided with positive stop lug boss, for coordinating with the upper surface of described lower guide pin bushing, limits the distance that described contact pin moves down.
8. engine cylinder-body measurer according to claim 1, is characterized in that, on described base and described calibration block, is provided with suitable screw, for described calibration block being fixed on to described base by hexagon socket cap head screw.
9. according to the engine cylinder-body measurer described in claim 1 to 8 any one, it is characterized in that, described standard component also comprises: mandrel handle, is connected with described air plug gauge by the mode of being spirally connected.
10. engine cylinder-body measurer according to claim 1, is characterized in that, at described mandrel handle and described air plug gauge joint, is also provided with catch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320425652.0U CN203489817U (en) | 2013-07-17 | 2013-07-17 | Engine cylinder measuring tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320425652.0U CN203489817U (en) | 2013-07-17 | 2013-07-17 | Engine cylinder measuring tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203489817U true CN203489817U (en) | 2014-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320425652.0U Expired - Lifetime CN203489817U (en) | 2013-07-17 | 2013-07-17 | Engine cylinder measuring tool |
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| Country | Link |
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| CN (1) | CN203489817U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089564A (en) * | 2014-07-09 | 2014-10-08 | 沪东重机有限公司 | Large journal bearing clearance measurement tool and method for marine diesel engine |
| CN107504880A (en) * | 2017-09-20 | 2017-12-22 | 瓦房店阿科比轴承有限公司 | Measure the measurer of tapered roller bearing internal ring rib width |
| CN108344352A (en) * | 2017-01-23 | 2018-07-31 | 上汽通用五菱汽车股份有限公司 | A kind of cylinder body on-line measurement error prevention device |
| CN108413835A (en) * | 2018-06-12 | 2018-08-17 | 重庆文安机械有限公司 | A kind of cylinder cover valve valve line and cam hole centre distance cubing and detection method |
-
2013
- 2013-07-17 CN CN201320425652.0U patent/CN203489817U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089564A (en) * | 2014-07-09 | 2014-10-08 | 沪东重机有限公司 | Large journal bearing clearance measurement tool and method for marine diesel engine |
| CN104089564B (en) * | 2014-07-09 | 2017-01-11 | 沪东重机有限公司 | Large journal bearing clearance measurement tool and method for marine diesel engine |
| CN108344352A (en) * | 2017-01-23 | 2018-07-31 | 上汽通用五菱汽车股份有限公司 | A kind of cylinder body on-line measurement error prevention device |
| CN107504880A (en) * | 2017-09-20 | 2017-12-22 | 瓦房店阿科比轴承有限公司 | Measure the measurer of tapered roller bearing internal ring rib width |
| CN107504880B (en) * | 2017-09-20 | 2024-02-09 | 瓦房店阿科比轴承有限公司 | Measuring tool for measuring tapered roller bearing inner ring flange width |
| CN108413835A (en) * | 2018-06-12 | 2018-08-17 | 重庆文安机械有限公司 | A kind of cylinder cover valve valve line and cam hole centre distance cubing and detection method |
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Granted publication date: 20140319 |
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