CN215726746U - Spline precision detection device - Google Patents
Spline precision detection device Download PDFInfo
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- CN215726746U CN215726746U CN202121735963.8U CN202121735963U CN215726746U CN 215726746 U CN215726746 U CN 215726746U CN 202121735963 U CN202121735963 U CN 202121735963U CN 215726746 U CN215726746 U CN 215726746U
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Abstract
The application relates to a spline precision detection device, which comprises a device main body, a detection part, a height limiting part and a measurement part, wherein the middle part of the detection part is rotationally connected with the device main body, the two ends of the detection part are respectively provided with an external spline matched with a crank, when an internal spline in the crank can be meshed with the external spline, the precision deviation of the internal spline meets the standard, and two cranks are arranged on the spline precision detection device; the height limiting part and the measuring part are arranged on the device main body, the height of one crank far away from one end of the detecting part can be limited through the height limiting part, and the height of the other crank far away from one end of the measuring part is limited in an expected manner through the limiting effect of the height limiting part on the crank; the measuring part is used for detecting the height of one end of the other crank far away from the measuring part, and when the height of one end of the other crank far away from the measuring part is consistent with the expected height, the two cranks are matched in height.
Description
Technical Field
The application relates to the field of mechanical part detection devices, in particular to a spline precision detection device.
Background
At present, in mechanical production, the application of the internal spline is very wide, namely the internal spline is a common part and an important part, the final quality and the service life of a mechanical product are directly influenced by the manufacturing process level and the product quality of the internal spline, and in order to improve the safety of the machine in the use process, the accuracy requirement of the spline is higher and higher, and the internal spline is also very important for detecting the accuracy of the spline.
The invention discloses a spline detection device disclosed in the related technology, such as Chinese patent with the publication number of CN2031148365U, and discloses an internal spline coaxiality detection device which comprises a reference sleeve, an external spline mandrel and a detected internal spline, wherein an inwards sunken concave table of the reference sleeve is matched with a standard internal spline and is used for being sleeved outside the detected spline, an oil external spline mandrel is sunken outside the concave table of the reference sleeve along the axial line, the external spline mandrel is inserted into the detected internal spline, and when the external spline mandrel can be inserted into the internal spline, the product is qualified.
To above-mentioned correlation technique, the inventor thinks, current spline precision detection device can only detect whether a spline is qualified, but can't make visual judgement to whether two spline subassemblies match, two cranks of bicycle use the spline to carry out the linkage installation, trepanning and internal spline have in the crank, internal spline in two cranks need highly to match the linkage and just can drive the bicycle operation, mismatch when two internal spline and can influence the linkage, be unfavorable for the operation of bicycle, current spline precision detection device can't directly detect two cranks and match, consequently, need improve.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that current spline precision detection device can't measure whether two spline subassemblies match, this application provides a spline precision detection device.
The application provides a spline precision detection device, adopts following technical scheme.
A spline accuracy detection device comprising:
a device body for supporting a load bearing action;
the middle part of the detection part is rotationally connected with the device main body, and both ends of the detection part are provided with external splines matched with the crank to be detected;
the height limiting part is arranged on the device main body, and the upper surface of the height limiting part is in abutting connection with one end, away from the detection part, of one crank;
and the measuring part is arranged on the device main body and is used for detecting the height of one end of the other crank, which is far away from the measuring part.
By adopting the technical scheme, through the arrangement of the detection part, the external splines on two sides of the detection part are respectively meshed with the internal splines in the two cranks, and when the cranks can be meshed with the external splines, the precision deviation of the internal splines in the cranks meets the standard; through the setting of limit for height portion, keep away from the height of detection portion one end to one of them crank and restrict, through the setting of measuring part, keep away from the height of detection portion one end to another crank and measure, the high performance that measuring part was leaned on can be passed through to the meshing deviation of crank and external splines, through the contrast to limit for height portion and measuring part, judges whether two cranks match.
Optionally, the device main body further includes:
the bottom plate is arranged in a flat plate shape;
the supporting block is arranged above the bottom plate;
the first bolt is in threaded connection with the top of the supporting block, and the part of the first bolt extending into the supporting block is connected with the top of the detection part;
the middle part of the detection part penetrates through the supporting block and is rotationally connected with the supporting block.
By adopting the technical scheme, a stable detection environment is provided for the spline precision detection device through the arrangement of the bottom plate; through the setting of supporting shoe, support and rely on for the detection provides, through the setting of first bolt, fixed detection portion through the lateral displacement of screwing up first bolt restriction detection portion, when first bolt loosens, removes the restriction to detection portion, can adjust and change detection portion.
Optionally, the detection part includes:
the connecting shaft is rotatably connected with the supporting block;
the spline portion, spline portion is provided with twice, spline portion sets up respectively in the both ends of connecting axle, the external splines at detection portion both ends set up respectively on twice spline portion.
By adopting the technical scheme, whether the internal spline of the crank can be meshed with the external spline is preliminarily detected through the arrangement of the spline part, if the internal spline is successfully meshed with the external spline, the internal spline to be detected is qualified, and two cranks are arranged on two sides of the detection part through the meshing action; through the setting of universal driving shaft, connect twice spline portion as an organic whole, guarantee twice spline portion linkage to whether detect two cranks can normally link the rotation.
Optionally, the connecting shaft is provided with:
the limiting groove is arranged around the middle of the connecting shaft in a circle, and the limiting groove and the first bolt are arranged on the same vertical plane;
the first bolt penetrates through the supporting block and the limiting groove in sequence.
Through adopting above-mentioned technical scheme, through the setting of spacing groove, make first bolt carry on spacingly to the connecting axle, avoid the connecting axle to take place lateral displacement at the in-process that detects and influence the testing result, can not influence the rotation of connecting axle simultaneously.
Optionally, the height limiting part includes:
one end of the first horizontal rod, which is close to the detection part, is connected with a crank;
the height limiting rod is vertically arranged, the upper end face of the height limiting rod is connected with the lower end face of the first horizontal rod in a propping mode, and the lower end face of the height limiting rod is connected with the upper end face of the bottom plate in a propping mode.
Through adopting above-mentioned technical scheme, through the setting of limit for height pole, obtain the height that the detection portion one end was kept away from to the crank, this crank is kept away from the height of detection portion one end and is unanimous with limit for height pole height, and the crank is kept away from detection portion one end and is the curved surface setting, can lead to the data not accurate when measuring, consequently sets up first horizon bar, guarantees stability and accuracy at measurement in-process data.
Optionally, the height limiting part further comprises:
the height limiting base is arranged on the upper surface of the bottom plate and is connected with the bottom of the height limiting rod;
the height limiting base is provided with a fixed clamping groove opposite to the height limiting rod, and the lower end of the height limiting rod is connected with the fixed clamping groove in a clamping mode.
Through adopting above-mentioned technical scheme, through the setting of limit for height base, establish limit for height pole on limit for height base through the fixing clip groove card, guarantee at the in-process that detects, the stability of limit for height pole.
Optionally, the measuring part includes:
one end of the second horizontal rod, which is close to the detection part, is connected with the other crank;
the height gauge is arranged on the bottom plate and connected with the second horizontal rod.
Through adopting above-mentioned technical scheme, through the setting of tongue, measure another crank and keep away from the height of detection portion one end, and this crank is kept away from detection portion one end and is the curved surface setting, can lead to data inaccurate when measuring, consequently sets up the second horizon bar, guarantees stability and accuracy of data in the measurement process.
Optionally, the height gauge includes:
the lower surface of the measuring base is connected with the upper surface of the bottom plate;
the measuring scale is vertically arranged, and the lower end part of the measuring scale penetrates through the measuring base;
the lower end face of the measuring claw is connected with the upper end face of the second horizontal rod in an abutting mode, and the measuring claw is connected to the measuring scale in a sliding mode.
Through adopting above-mentioned technical scheme, through the setting of dipperstick, measure another crank and keep away from the height of detection portion one end to can follow and obtain the height reading on the dipperstick, guarantee the measuring accurate nature through setting up of measuring claw, take place the error when avoiding the range estimation to align, through the focus that sets up the reduction whole tongue of measuring base, avoid the tongue to take place to rock, and measure the base and fix the dipperstick, guarantee going on of measurement process.
In summary, the present application includes at least one of the following beneficial technical effects:
detecting whether the internal spline of the crank is qualified or not;
and detecting whether the internal splines of the two cranks are matched or not.
Drawings
Fig. 1 is a schematic structural diagram of a spline precision detection device according to an embodiment of the present application;
FIG. 2 is a schematic view of a crank mounting of an embodiment of the present application;
FIG. 3 is a schematic diagram of the internal structure of an embodiment of the present application;
FIG. 4 is a detailed schematic diagram of an embodiment of the present application;
reference numerals: 1. a device main body; 2. a crank; 3. a detection unit; 4. a height limiting portion; 5. a measuring section; 11. a base plate; 12. a support block; 13. a first bolt; 21. an internal spline; 31. a spline section; 311. an external spline; 32. a connecting shaft; 321. a limiting groove; 41. a first horizontal bar; 42. a height limiting rod; 43. a height limiting base; 431. fixing the clamping groove; 51. a second horizontal bar; 52. a height gauge; 521. a measuring base; 522. measuring a scale; 523. the paw is measured.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses spline precision detection device.
Referring to fig. 1, the spline precision detection device comprises a device body 1, a detection part 3, a height limiting part 4 and a measurement part 5, wherein the middle part of the detection part 3 is rotatably connected with the device body 1, outer splines 311 matched with a crank 2 are respectively arranged at two ends of the detection part 3, when an inner spline 21 in the crank 2 can be meshed with the outer splines 311, the precision deviation of the inner spline 21 meets the standard, two cranks 2 are installed on the spline precision detection device, and the tolerance generated when the inner spline 21 is meshed with the outer splines 311 can be reflected by the height of the crank 2 far away from one end of the detection part 3.
Referring to fig. 1, height limiting portion 4 is arranged on device body 1, the upper surface of height limiting portion 4 is connected with one end of one crank 2 far away from detecting portion 3 in a propping manner, the height of one crank 2 far away from detecting portion 3 can be limited through height limiting portion 4, the height of the crank is limited to be consistent with height limiting portion 4, crank 2 is kept horizontally by the limiting effect of height limiting portion 4 on crank 2, and the height of the other crank 2 far away from measuring portion 5 is limited in an expected manner through the rotation connection of measuring portion 5.
Referring to fig. 1, the measuring part 5 is disposed on the device body 1, the measuring part 5 is used for detecting the height of one end of the other crank 2 away from the measuring part 5, when the height of one end of the other crank 2 away from the measuring part 5 is consistent with the expected height, the two cranks 2 are matched in height, when the measured height is inconsistent with the height of the height limiting part 4, whether the tolerance of the internal spline 21 of the crank 2 is in a reasonable range is judged according to the height difference between the two, and the related production parameter of the internal spline 21 is adjusted according to the result.
Referring to fig. 2 and 3, the detection portion 3 includes a connecting shaft 32 and a spline portion 31, wherein the connecting shaft 32 is rotatably connected to the supporting block 12, the spline portion 31 has two parts, which are respectively disposed at two ends of the connecting shaft 32, and two external splines 311 are respectively disposed on the spline portions 31 at two ends, when the internal splines 21 on the crank 2 are engaged with the external splines 311, the two cranks 2 are mounted on the detection portion 3 and are linked and connected by the connecting shaft 32, and whether the two cranks 2 can be linked normally or not is detected by the connecting shaft 32.
Referring to fig. 1 and 3, the device body 1 includes a bottom plate 11, a supporting block 12 and a first bolt 13, wherein the bottom plate 11 is arranged in a horizontal plate shape to provide a horizontal stable detection environment for the spline accuracy detection device, the supporting block 12 is arranged above the bottom plate 11 to support the detection part 3, the first bolt 13 is arranged on the supporting block 12, the first bolt 13 is in threaded connection with the top of the supporting block 12, and the part of the first bolt 13 extending into the supporting block 12 is connected with the detection part 3; a circle of limiting groove 321 is formed in the surface of the middle of the connecting shaft 32 of the detection part 3, when the first bolt 13 is screwed, the first bolt 13 penetrates through the supporting block 12 to be connected with the limiting groove 321 in a clamping mode, the left and right movement of the detection part 3 is limited, and the detection accuracy is guaranteed; when the first bolt 13 leaves the limiting groove 321, the detecting part 3 can be taken out of the supporting block 12, and the detecting part 3 can be maintained and replaced according to requirements.
Referring to fig. 1 and 4, the height limiting portion 4 includes a first horizontal rod 41, a height limiting rod 42 and a height limiting base 43, the height limiting rod 42 is vertically disposed at one end side of the crank 2 away from the detecting portion 3, and since one end of the crank 2 away from the detecting portion 3 is disposed in a curved surface manner, which is not beneficial to the accuracy of detected data, the first horizontal rod 41 is inserted into a trepan hole at one side of the crank 2 away from the detecting portion 3, the upper end surface of the height limiting rod 42 is abutted against the lower end surface of the first horizontal rod 41, and the lower end surface of the height limiting rod 42 is abutted against the upper end surface of the bottom plate 11; at this time, the height of the crank 2 on the side away from the detection part 3 is equal to the height of the height limiting rod 42, and the crank 2 is kept horizontally by the lifting action of the height limiting rod 42.
Referring to fig. 4, the height limiting base 43 is disposed on the upper surface of the bottom plate 11, and a fixing groove 431 corresponding to the height limiting rod 42 is disposed on the height limiting base 43, wherein the lower end of the height limiting rod 42 is inserted into the fixing groove 431 and connected to the height limiting base 43, so that the stability of the height limiting rod 42 is ensured, and the height limiting rod is prevented from deviating from the vertical direction during the measurement process.
Referring to fig. 1 and 4, the measuring portion 5 includes a second horizontal rod 51 and a height gauge 52, the height gauge 52 is disposed on the bottom plate 11 to measure the height of the other crank 2 away from the measuring portion 5, and in order to avoid the influence of the curved surface of the crank 2 away from the measuring portion 5 on the measurement accuracy, one end of the second horizontal rod 51 is inserted through a trepan of the crank 2 away from the detecting portion 3, so that the height gauge 52 measures the height of the second horizontal rod 51, and the accuracy of the result is guaranteed.
Referring to fig. 4, the height gauge 52 is provided with a measuring base 521, a measuring claw 523 and a measuring ruler 522, the measuring base 521 is installed on the bottom plate 11 to lower the center of gravity of the whole height gauge 52 and fix the measuring ruler 522 to prevent the measuring ruler from shaking; the vertical setting of dipperstick 522, and the tip wears to establish under the dipperstick 522 and measures the setting of base 521, measures claw 523 sliding connection on dipperstick 522, and the lower terminal surface of measuring claw 523 supports tightly with second horizon bar 51 up end to be connected, through this tongue 52, can obtain the height of 5 one end of another crank 2 principle measuring part.
The implementation principle of the spline precision detection device in the embodiment of the application is as follows:
the two cranks 2 are arranged on the detection part 3 through the engagement of the internal splines 21 and the external splines 311, if the engagement is successful, the internal splines 21 in the cranks 2 are qualified; the height limiting part 4 limits the height of one crank 2 far away from one end of the detection part 3, and performs expected limitation on the height of the other crank 2 far away from one end of the detection part 3 through the rotary connection of the connecting shaft 32, wherein the expected limitation height is consistent with the height limiting rod 42; the height of one end of the other crank 2, which is far away from the detection part 3, is measured through the measuring part 5, when the measuring result is consistent with the height of the height limiting rod 42, the two cranks 2 are in height matching, and when the measured height is inconsistent with the height limiting rod 42, whether the tolerance of the spline 21 in the crank 2 is in a reasonable range is judged according to the height difference.
The above embodiments are the best embodiments of the present application, and the protection scope of the present application is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. A spline accuracy detection device, characterized by comprising:
a device body (1) for supporting;
the middle part of the detection part (3) is rotationally connected with the device main body (1), and both ends of the detection part (3) are provided with external splines (311) matched with the crank (2) to be detected;
the height limiting part (4), the height limiting part (4) is arranged on the device main body (1), and the upper surface of the height limiting part (4) is tightly connected with one end, away from the detection part (3), of one crank (2);
the measuring part (5), the measuring part (5) is arranged on the device main body (1), and the measuring part (5) is used for detecting the height of one end, away from the measuring part (5), of the other crank (2).
2. A spline accuracy detecting device according to claim 1, wherein the device main body (1) further comprises:
the bottom plate (11), the bottom plate (11) is a flat plate;
the supporting block (12), the said supporting block (12) is set up above the bottom plate (11);
the first bolt (13), the first bolt (13) is in threaded connection with the top of the supporting block (12), and the part of the first bolt (13) extending into the supporting block (12) is connected with the top of the detection part (3);
the middle part of the detection part (3) penetrates through the supporting block (12) and is rotationally connected with the supporting block (12).
3. The spline accuracy detection device according to claim 1, wherein the detection section (3) includes:
the connecting shaft (32), the said connecting shaft (32) is connected with supporting shoe (12) rotatably;
spline portion (31), spline portion (31) are provided with twice, spline portion (31) set up respectively in the both ends of connecting axle (32), external splines (311) at detection portion (3) both ends set up respectively on twice spline portion (31).
4. A spline accuracy detecting device according to claim 3, characterized in that the connecting shaft (32) is provided with:
the limiting groove (321) is arranged around the middle of the connecting shaft (32) in a circle, and the limiting groove (321) and the first bolt (13) are arranged on the same vertical plane;
the first bolt (13) penetrates through the supporting block (12) and the limiting groove (321) in sequence.
5. A spline accuracy detecting device according to claim 1, wherein the height restricting section (4) comprises:
a first horizontal rod (41), wherein one end of the first horizontal rod (41) close to the detection part (3) is connected with a crank (2);
limit for height pole (42), limit for height pole (42) set up perpendicularly, limit for height pole (42) up end supports tightly with first horizon bar (41) lower terminal surface to be connected, limit for height pole (42) lower terminal surface supports tightly with bottom plate (11) up end to be connected.
6. A spline accuracy detecting device according to claim 1, wherein the height restricting section (4) further comprises:
the height limiting base (43) is arranged on the upper surface of the bottom plate (11), and the height limiting base (43) is connected with the bottom of the height limiting rod (42);
the height limiting base (43) is provided with a fixed clamping groove (431) opposite to the height limiting rod (42), and the lower end of the height limiting rod (42) is connected with the fixed clamping groove (431) in a clamping mode.
7. The spline accuracy detection device according to claim 1, wherein the measurement section (5) includes:
one end, close to the detection part (3), of the second horizontal rod (51) is connected with the other crank (2);
the height gauge (52) is arranged on the bottom plate (11), and the height gauge (52) is connected with the second horizontal rod (51).
8. The spline accuracy detection device according to claim 7, wherein the height gauge (52) comprises:
the lower surface of the measuring base (521) is connected with the upper surface of the bottom plate (11);
the measuring scale (522) is vertically arranged, and the lower end part of the measuring scale (522) penetrates through the measuring base (521);
the lower end face of the measuring claw (523) is connected with the upper end face of the second horizontal rod (51) in a propping and tight mode, and the measuring claw (523) is connected to the measuring scale (522) in a sliding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121735963.8U CN215726746U (en) | 2021-07-28 | 2021-07-28 | Spline precision detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121735963.8U CN215726746U (en) | 2021-07-28 | 2021-07-28 | Spline precision detection device |
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| Publication Number | Publication Date |
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| CN215726746U true CN215726746U (en) | 2022-02-01 |
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| CN202121735963.8U Active CN215726746U (en) | 2021-07-28 | 2021-07-28 | Spline precision detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115009409A (en) * | 2022-07-19 | 2022-09-06 | 兰溪轮峰车料有限公司 | Quick-release crank |
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2021
- 2021-07-28 CN CN202121735963.8U patent/CN215726746U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115009409A (en) * | 2022-07-19 | 2022-09-06 | 兰溪轮峰车料有限公司 | Quick-release crank |
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