CN218781741U - Crankshaft parallelism detector - Google Patents
Crankshaft parallelism detector Download PDFInfo
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- CN218781741U CN218781741U CN202223303984.XU CN202223303984U CN218781741U CN 218781741 U CN218781741 U CN 218781741U CN 202223303984 U CN202223303984 U CN 202223303984U CN 218781741 U CN218781741 U CN 218781741U
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- stull
- crankshaft
- parallelism
- bent axle
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Abstract
The utility model belongs to the technical field of measuring device, especially, relate to bent axle depth of parallelism detector, including the stull, be provided with on the stull and detect the table, the detection head that detects the table passes the stull and outstanding stull, the stull both ends all are provided with the main tributary strut, main tributary strut lower extreme is provided with the auxiliary stay frame, the auxiliary stay frame includes the connecting rod that two staggered arrangement formed the contained angle, this application arranges the auxiliary stay frame on the main journal of bent axle, make the stull be located the round pin journal of bent axle, and make the detection head that detects the table and the round pin journal contact of bent axle, because the auxiliary stay frame adopts columniform intersection structure, make the auxiliary stay frame be line contact with the main journal, confirm the numerical value that detects the table when the detector rotates, the numerical value difference that detects the table is measured to continuous removal detector, and then judge the depth of parallelism difference of bent axle pin journal, this kind of detection method detects the precision higher, the detection speed is faster, the detection scheme of bent axle depth of parallelism has been enriched.
Description
Technical Field
The application belongs to the technical field of measuring device, especially relates to bent axle depth of parallelism detector.
Background
The crankshaft is one of key parts of the diesel engine, mainly converts linear motion generated by fuel explosion into rotary motion and outputs power; in addition, the crankshaft is also a key part for driving systems such as a valve actuating mechanism, fuel oil, lubrication, cooling, speed regulation and the like.
The main journal of the crankshaft is arranged in a main bearing hole of the diesel engine, and the crank pin journal of the crankshaft is connected with a big-end bearing hole of the connecting rod; the parallelism error of the common axis of the main journals of the crankshafts relative to the axis of the journals of the crank pins is one of the most important parameters for evaluating the machining quality of the crankshafts, and if the parallelism error of the journals of the crankshafts is too large, the outgoing quality of the diesel engine can be seriously influenced.
The test of the parallelism error of the crankshaft journals is a difficult point and a key point of the crankshaft test, and the test of the parallelism error of the common axis of the crankshaft main journals relative to the axis of the crank pin journals can be quickly completed on a working site through the application of a crankshaft parallelism instrument, so that the crankshaft machining quality is further improved.
And performing spot check on the parallelism error of the common central line of the main journal of the crankshaft relative to the central line of the journal of the crank pin according to the requirement of 'batch-by-batch spot check counting and sampling regulation' of Q/ZC 29B.
SUMMERY OF THE UTILITY MODEL
This application provides bent axle depth of parallelism detector in order to solve above-mentioned problem.
The utility model aims at providing a bent axle depth of parallelism detector, stull and support frame cooperation, the table is detected in the installation on the stull, make the auxiliary stay frame of this application can arrange on the main journal of bent axle, make the stull be located the round pin journal of bent axle, and make the detection head of detecting the table and the round pin journal contact of bent axle, because the auxiliary stay frame adopts columniform cross structure, make auxiliary stay frame and main journal be line contact, confirm the numerical value of detecting the table when the detector rotates, the continuous difference numerical value of detecting the table is measured to the removal detector, and then judge the depth of parallelism difference of bent axle round pin journal, this kind of detection method detects the precision higher, detection speed is faster, the detection method of bent axle depth of parallelism has been richened.
In order to achieve the purpose of the application, the technical scheme of the application is as follows:
bent axle depth of parallelism detector, including the stull, be provided with on the stull and detect the table, the detection head that detects the table passes the stull and outstanding stull, and the stull both ends all are provided with the main tributary strut, and main tributary strut lower extreme is provided with the auxiliary stay frame, and the auxiliary stay frame includes two connecting rods that staggered arrangement formed the contained angle.
Furthermore, a first threaded hole is formed in the cross brace, a first fixing bolt is arranged in the first threaded hole in a threaded mode, and the first fixing bolt fixes the detection meter on the cross brace.
Furthermore, the main support frame on one side of the cross support is fixedly arranged on the cross support through a second fixing bolt, and the main support frame on the other side of the cross support is fixedly arranged on the cross support through a third fixing bolt.
Furthermore, a plurality of through holes are formed in one side of the cross support, a second threaded hole is formed in one main support frame, a second fixing bolt penetrates through the through holes to be in threaded connection with the second threaded hole of the main support frame, a plurality of through grooves are formed in the other side of the cross support, a third threaded hole is formed in the other main support frame, and a third fixing bolt penetrates through the through grooves to be in threaded connection with the third threaded hole of the main support frame.
Furthermore, an auxiliary groove is formed in the main support frame.
Furthermore, one end of the connecting rod is provided with a connecting bolt, the lower end of the main support frame is provided with a herringbone connector, the connecting head is provided with a connecting screw hole, and the connecting bolt of the connecting rod is in threaded connection with the connecting screw hole of the connector.
Furthermore, the connecting rod is a cylindrical rod.
Further, the included angle between the connecting rods is 120 degrees.
Compared with the prior art, the beneficial effect of this application is:
1. this application arranges the auxiliary stay frame on the main journal of bent axle, make the stull be located the round pin journal of bent axle, and make the round pin journal contact of detecting head and bent axle of detecting the table, because the auxiliary stay frame adopts columniform cross structure, make the auxiliary stay frame be line contact with the main journal, confirm the numerical value of detecting the table when the detector rotates, the numerical value difference of detecting the table is measured to continuous removal detector, and then judge the depth of parallelism difference of bent axle round pin journal, this kind of detection method detects the precision higher, the detection speed is faster, the detection scheme of bent axle depth of parallelism has been enriched.
2. A main tributary strut and stull of this application are relative fixed connection, and another main tributary strut can adjust the relative position with the stull for the detector of this application can carry out the adjustment on the size according to the bent axle, in addition, sets up the auxiliary tank on the main tributary strut so that reduce the weight of detector, makes the detector of this application can facilitate the use.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
FIG. 1 is a front view structural schematic of the present application;
fig. 2 is a schematic side view of the present application.
In the figure:
1. the device comprises a cross support, 2, a detection meter, 3, a first fixing bolt, 4, a detection head, 5, a main support frame, 6, an auxiliary support frame, 7, a second fixing bolt, 8, a third fixing bolt, 9, a through groove, 10, a connecting bolt, 11 and an auxiliary groove.
Detailed Description
The present application will be further described with reference to the following drawings and examples.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
In the present application, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only terms of relationships determined for convenience of describing structural relationships of components or elements of the present application, and are not intended to refer to any components or elements of the present application, and should not be construed as limiting the present application.
Example 1
The embodiment relates to a crankshaft parallelism detector, a measurement of simple short-term test bent axle parallelism, check out test set, including stull 1, install on the stull 1 and detect table 2, the detection head 4 that detects table 2 passes stull 1 and outstanding stull 1, concretely, set up the through-hole of vertical direction on the stull 1, make and detect head 4 and pass the through-hole, first screw hole has been seted up on the stull 1, first screw hole is arranged perpendicularly with the through-hole, first fixing bolt 3 is installed to the spiro union in the first screw hole, first fixing bolt 3 will detect table 2 and fix on stull 1, it can adopt the percentage table to detect table 2.
In this embodiment, the main support frames 5 are installed at both ends of the cross brace 1, the sub-support frames 6 are installed at the lower ends of the main support frames 5, the sub-support frames 6 include two connecting rods which are arranged in a staggered manner to form an included angle, wherein the main support frame 5 at one side of the cross brace 1 is fixedly installed on the cross brace 1 through the second fixing bolt 7, the main support frame 5 at the other side of the cross brace 1 is fixedly installed on the cross brace 1 through the third fixing bolt 8, specifically, one side of the cross brace 1 is provided with a plurality of through holes, one main support frame 5 is provided with the second threaded holes, the number of the second threaded holes is 2, the number of the corresponding through holes is also 2, the second fixing bolts 7 pass through the through holes and are in threaded connection with the second threaded holes of the main support frames 5, the opposite side of stull 1 has seted up multichannel through groove 9, seted up the third screw hole on another main tributary strut 5, the quantity of third screw hole is 2, its quantity that corresponds through groove 9 also is 2, it is 100mm to lead to groove 9 length, third fixing bolt 8 passes the third screw hole spiro union of leading to groove 9 and main tributary strut 5, connecting rod one end has connecting bolt 10, main tributary strut 5 lower extreme is "people" style of calligraphy connector, the connection screw has been seted up on the connector, connecting bolt 10 of connecting rod and the connection screw spiro union of connector, in addition, the connecting rod is the cylinder pole, make the connecting rod be line contact with the contact of bent axle, more specifically, the contained angle between the connecting rod is 120.
In addition, the main support frame 5 is provided with an auxiliary groove 11 so as to reduce the whole weight of the detector.
The use method of the detector comprises the following steps:
the first step is as follows: preparation before measurement
Before measurement, the main journal and the crank pin journal of the crankshaft to be measured are blown clean by strong wind, and then the human-shaped support frame of the positioning support of the main journal, the outer circle of the crank pin journal and the crankshaft parallelism meter of the crankshaft to be measured is wiped clean by absolute ethyl alcohol.
The second step: application process
Firstly, a humanoid supporting frame of a crankshaft parallelism instrument is arranged at the left end of a main journal of a first gear and a second gear adjacent to a detected crankshaft, a meter head of a detection meter 2 is also arranged at the leftmost end of the journal of the first gear crank pin and contacts a bus of an excircle of an upper stop point of the journal of the first gear crank pin, the meter head is determined to be a first detection point, at the moment, the crankshaft parallelism instrument swings back and forth around the axis of the main journal of the crankshaft, the maximum feedback point of a meter needle of the detection meter 2 is continuously searched and visually detected in the swinging process, the meter needle of the detection meter 2 is simultaneously calibrated to be a zero position, and the reading of the first detection point is 0 at the moment.
And secondly, placing a gauge 2 gauge head of the crankshaft parallelism meter at the middle position of the crank pin journal of the crankshaft and in contact with a bus of an excircle of a top dead center of the crank pin journal, and determining the position as a second detection point. The measurement is carried out by the same method, the maximum value of the pointer of the watch 2 deviating from the zero position is detected visually, when the pointer is left at the zero position, the pointer is a negative value, and when the pointer is right at the zero position, the pointer is a positive value, and the reading measurement is finished at the second detection point.
Thirdly, placing the head of a detection meter 2 of the crankshaft parallelism meter on the rightmost end of the crank pin journal of the crankshaft and a bus contacting the excircle of the top dead center of the crank pin journal, determining the position as a third detection point, and measuring by the same method.
Fourthly, subtracting the minimum value of the zero offset of the pointer of the detection table 2 from the maximum value of the zero offset of the pointer of the detection table 2 at the three detection points, namely the parallelism error value of the main journal axis of the first-gear and second-gear crank pins relative to the journal axis of the first-gear crank pins.
Fifthly, the parallelism errors of the crankshafts of other gears are all detected by adopting the same method.
The detector of the embodiment is a gantry type measuring device, has a simple structure, is convenient and quick to use, has strong function expansibility, can quickly detect the parallelism error of the common axis of the main journals of the crankshafts relative to the axis of the journal of the crank pin on a working site, and can be used in the machining process of the crankshafts, so that the crankshaft crank pin can be conveniently and timely adjusted by a grinding machine to eliminate the error.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Although the embodiments of the present application have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present application, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive effort by those skilled in the art.
Claims (8)
1. Crankshaft parallelism detector, its characterized in that is provided with on stull (1) and detects table (2), detects table (2) and must detect head (4) and pass stull (1) and outstanding stull (1), and stull (1) both ends all are provided with main tributary strut (5), and main tributary strut (5) lower extreme is provided with auxiliary stay frame (6), and auxiliary stay frame (6) include two connecting rods that staggered arrangement formed the contained angle.
2. The crankshaft parallelism detector according to claim 1, characterized in that the cross brace (1) is provided with a first threaded hole, a first fixing bolt (3) is screwed in the first threaded hole, and the first fixing bolt (3) fixes the detector (2) on the cross brace (1).
3. The crankshaft parallelism detector according to claim 1, characterized in that the main support frame (5) on one side of the cross brace (1) is fixedly mounted on the cross brace (1) by means of second fixing bolts (7), and the main support frame (5) on the other side of the cross brace (1) is fixedly mounted on the cross brace (1) by means of third fixing bolts (8).
4. The crankshaft parallelism detector according to claim 1, characterized in that one side of the cross brace (1) is provided with a plurality of through holes, one main support frame (5) is provided with a second threaded hole, and a second fixing bolt (7) passes through the through holes and is in threaded connection with the second threaded hole of the main support frame (5); a plurality of through grooves (9) are formed in the other side of the cross support (1), a third threaded hole is formed in the other main support frame (5), and a third fixing bolt (8) penetrates through the through grooves (9) to be in threaded connection with the third threaded hole of the main support frame (5).
5. The crankshaft parallelism detector according to claim 1, characterized in that the main support frame (5) is provided with an auxiliary groove (11).
6. The crankshaft parallelism detector according to claim 1, wherein a connecting bolt (10) is provided at one end of the connecting rod, a herringbone connecting head is provided at the lower end of the main support frame (5), a connecting screw hole is provided on the connecting head, and the connecting bolt (10) of the connecting rod is in threaded connection with the connecting screw hole of the connecting head.
7. The crankshaft parallelism detector of claim 1, wherein the connecting rod is a cylindrical rod.
8. The crankshaft parallelism detector of claim 1, wherein the included angle between the connecting rods is 120 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223303984.XU CN218781741U (en) | 2022-12-07 | 2022-12-07 | Crankshaft parallelism detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223303984.XU CN218781741U (en) | 2022-12-07 | 2022-12-07 | Crankshaft parallelism detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218781741U true CN218781741U (en) | 2023-03-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223303984.XU Active CN218781741U (en) | 2022-12-07 | 2022-12-07 | Crankshaft parallelism detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218781741U (en) |
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2022
- 2022-12-07 CN CN202223303984.XU patent/CN218781741U/en active Active
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