CN215491467U - Spline span measuring device - Google Patents
Spline span measuring device Download PDFInfo
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- CN215491467U CN215491467U CN202121654137.0U CN202121654137U CN215491467U CN 215491467 U CN215491467 U CN 215491467U CN 202121654137 U CN202121654137 U CN 202121654137U CN 215491467 U CN215491467 U CN 215491467U
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Abstract
The utility model discloses a spline cross-rod distance measuring device, which comprises: a base; the first measuring rod is connected with the base; the second measuring rod is connected with the base in a sliding mode and can slide along the left-right direction, the sliding direction line of the second measuring rod passes through the first measuring rod, and the second measuring rod is used for clamping the spline in a matching mode with the first measuring rod; one end of the first elastic piece is connected with the base, the other end of the first elastic piece is connected with the second measuring rod, and the first elastic piece is used for driving the second measuring rod to keep a rightward sliding trend; the caliber connects the base, and the caliber is used for measuring the glide distance of the second measuring stick, when measuring the cross-stick distance of the spline, utilizes the caliber line to detect out the displacement variation of the second measuring stick, and the initial distance of the first measuring stick and the second measuring stick is recycled and this variation is subtracted to obtain the cross-stick distance of the spline, and the measuring method is simple and effective, convenient and fast, and efficient.
Description
Technical Field
The utility model relates to the technical field of measuring tools, in particular to a spline cross-bar distance measuring device.
Background
The spline is a part commonly used for transmitting torque, and the cross-bar distance of the spline refers to the maximum distance between the first measuring bar and the second measuring bar when the first measuring bar and the second measuring bar are respectively clamped in two different tooth grooves of the spline.
The existing spline span length is measured by using a first measuring rod, a second measuring rod and a caliper, the first measuring rod, the second measuring rod and the caliper are required to be manually adjusted, the first measuring rod and/or the second measuring rod are easy to loosen, the span length error measured in such a way is large, and the detection efficiency is low due to the fact that the measuring steps are multiple.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the spline cross-bar distance measuring device provided by the utility model has the advantages that the first measuring bar and the second measuring bar are not easy to loosen, and the spline cross-bar distance detecting efficiency is high.
According to a first aspect embodiment of the present invention, a spline across-stick distance measuring device includes: a base; the first measuring rod is connected with the base; the second measuring rod is connected with the base in a sliding mode and can slide along the left-right direction, the sliding direction line of the second measuring rod passes through the first measuring rod, and the second measuring rod is used for being matched with the first measuring rod to clamp the spline; one end of the first elastic piece is connected with the base, the other end of the first elastic piece is connected with the second measuring rod, and the first elastic piece is used for driving the second measuring rod to keep a rightward sliding trend; and the measurer is connected with the base and is used for measuring the sliding distance of the second measuring rod.
The spline cross-rod distance measuring device provided by the embodiment of the utility model at least has the following beneficial effects: the first elastic piece is arranged to provide pretightening force for the second measuring rod, so that the second measuring rod keeps the tendency of sliding rightwards, the first measuring rod is matched with the second measuring rod to clamp the spline, when the span length of the spline is measured, the spline is clamped on the first measuring rod firstly, and then the second measuring rod is pushed leftwards, so that the second measuring rod is clamped on the spline, at the moment, the displacement of the second measuring rod detected by the measurer is variable, and the span length of the spline can be obtained by subtracting the variable from the initial distance of the first measuring rod and the second measuring rod; in addition, the first elastic piece is arranged to drive the second measuring rod to keep the tendency of sliding rightwards, so that the second measuring rod is not easy to loosen in the left-right direction.
According to some embodiments of the utility model, the device further comprises a push rod and a second elastic member, one end of the second elastic member is connected with the base, the other end of the second elastic part is connected with the second measuring rod, the second elastic part is used for driving the second measuring rod to slide leftwards, the push rod sequentially penetrates through the base and the second measuring rod from right to left, the push rod can slide along the left-right direction, the left end of the push rod is used for driving the first elastic part to move leftwards, the second elastic part is arranged to give a leftward thrust to the second measuring rod, the push rod is used for offsetting the right thrust of the first elastic part and pushing the second measuring rod to slide leftwards by using the thrust of the second elastic part, the contact force between the second measuring rod and the spline can be fixed, and the phenomenon that the spline is crushed due to excessive contact force to cause inaccuracy of a measuring result is avoided.
According to some embodiments of the present invention, the second measuring rod includes a sliding portion and an abutting portion, the abutting portion is disposed at an upper end of the sliding portion, the abutting portion and the first measuring rod are matched to clamp the spline, one end of the first elastic member is connected to the base, the other end of the first elastic member is connected to a left end of the sliding portion, one end of the second elastic member is connected to the base, the other end of the second elastic member is connected to a right end of the sliding portion, the push rod sequentially penetrates through the base and the sliding portion from right to left, and the sliding portion and the abutting portion are disposed in a definite work, simple structure and convenient to install.
According to some embodiments of the present invention, the sliding device further includes a top rod, the top rod is slidably connected to the base, the top rod can slide along the left-right direction, the other end of the first elastic member is connected to the left end of the top rod, the right end of the top rod abuts against the sliding portion, and the top rod is provided for facilitating the first elastic member to transmit elastic force to the sliding portion and facilitating the contact between the top rod and the top rod to generate interaction.
According to some embodiments of the utility model, the right end of the push rod is provided with a flange, the flange is used for abutting against the base, and the flange is arranged to prevent the push rod from being pressed too much when in use, so that the second measuring rod is prevented from pressing the spline too much.
According to some embodiments of the present invention, a predetermined distance is set between the left end of the flange and the base in the left-right direction, and the set predetermined distance is a deformation amount that cancels the rightward thrust of the first elastic member, that is, after the first elastic member is deformed to the left by the predetermined distance, the rightward thrust of the first elastic member to the second measuring rod disappears, so as to conveniently fix the pressure of the second measuring rod to the spline.
According to some embodiments of the present invention, the first measuring rod is detachably connected to the base, and the abutting portion is detachably connected to the sliding portion, so that it is convenient to replace different first measuring rods and different abutting portions according to different splines.
According to some embodiments of the utility model, the opposite ends of the first measuring rod and the second measuring rod are provided with abutting surfaces, the abutting surfaces are used for abutting against the bottom of the tooth socket of the spline, and the abutting surfaces are in surface contact with the bottom of the tooth socket of the spline, so that the abutting is more stable.
According to some embodiments of the utility model, the base is connected with a guide pin, the guide pin extends along the left-right direction, the second measuring rod is connected to the guide pin in a sliding manner, and the guide pin is arranged to limit the sliding direction of the second measuring rod, so that the second measuring rod is prevented from deviating from the sliding direction, and the measuring result is not accurate.
According to some embodiments of the utility model, the guide pin is provided with a plurality of guide pins, so that the stress of the second measuring rod is balanced, and the second measuring rod can be prevented from overturning.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic structural diagram of a spline span bar distance measuring device without a measurer according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of the spline cross-bar distance measuring device shown in FIG. 1 with a gauge in front elevation;
FIG. 3 is a top view of the spline span length measuring device shown in FIG. 1 without a gauge;
FIG. 4 is a cross-sectional view of the top view of the spline straddle pitch measurement device shown in FIG. 1 without a gauge;
FIG. 5 is an enlarged view of FIG. 3 prior to use at A;
fig. 6 is an enlarged view of fig. 3 after use at a.
A base 100, a push rod 110, a flange 111, a second elastic member 120, a top bar 130, and a guide pin 140;
a first measuring stick 200;
a second measuring stick 300, a sliding portion 310, and an abutting portion 320;
first elastic member 400, measuring device 500, measuring rod 510, abutment surface 600, and spline 700.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and more than, less than, more than, etc. are understood as excluding the present number, and more than, less than, etc. are understood as including the present number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly defined, terms such as setting, installation, connection and the like should be understood in a broad sense, and the connection may be an indirect connection, and those skilled in the art can reasonably determine the specific meaning of the terms in the present invention by combining the specific contents of the technical solutions.
Referring to fig. 1 to 6, a spline cross-bar distance measuring apparatus includes: a base 100; a first measuring stick 200 connected to the base 100; the second measuring rod 300 is connected with the base 100 in a sliding mode, the second measuring rod 300 can slide along the left-right direction, the sliding direction line of the second measuring rod 300 passes through the first measuring rod 200, and the second measuring rod 300 is used for being matched with the first measuring rod 200 to clamp the spline 700; a first elastic member 400, one end of which is connected to the base 100, and the other end of the first elastic member 400 is connected to the second measuring stick 300, wherein the first elastic member 400 is used for driving the second measuring stick 300 to keep a tendency of sliding rightward; and a measurer 500 connected to the base 100, wherein the measurer 500 is used for measuring the sliding distance of the second measuring rod 300. The arranged first elastic piece 400 provides pretightening force for the second measuring rod 300 to ensure that the second measuring rod 300 keeps the tendency of sliding rightwards, the first measuring rod 200 is matched with the second measuring rod 300 to clamp the spline 700, when the span length of the spline 700 is measured, the spline 700 is clamped on the first measuring rod 200 firstly, then the second measuring rod 300 is pushed leftwards to ensure that the second measuring rod 300 is clamped on the spline 700, at the moment, the displacement of the second measuring rod 300 detected by the measurer 500 is variable, and the span length of the spline 700 can be obtained by subtracting the variable from the initial distance of the first measuring rod 200 and the second measuring rod 300; in addition, the first elastic member 400 is provided to drive the second measuring rod 300 to keep the tendency of sliding rightward, so that the second measuring rod 300 is not easily loosened in the left-right direction.
In some embodiments, the measuring device 500 is a dial indicator, the dial indicator has a measuring rod 510, the measuring rod 510 can elastically extend and contract relative to the dial indicator, when the measuring rod 510 extends and contracts, the reading of the dial indicator changes, the change value of the reading represents the displacement of the measuring rod 510, the measuring rod 510 always abuts against the right end of the second measuring rod 300, because the second measuring rod 300 compresses the measuring rod 510 under the driving of the first elastic member 400, when the second measuring rod 300 moves to the left, the measuring rod 510 correspondingly extends to the left to abut against the second measuring rod 300, it can be understood that the base 100 is provided with a limiting structure for blocking the second measuring rod 300 from sliding to the right, the limiting structure appears as the right end inner wall of a concave portion in fig. 1 and fig. 2, the second measuring rod 300 slides in the concave portion, and the right end of the second measuring rod 300 is limited by the right end inner wall of the concave portion; in addition, limit structure also can be the stopper of connection on the base, and the stopper blocks the stick 300 is measured to the second on the right side.
In some embodiments, the measuring device further comprises a push rod 110 and a second elastic member 120, one end of the second elastic member 120 is connected to the base 100, the other end of the second elastic member 120 is connected to the second measuring rod 300, the second elastic member 120 is used for driving the second measuring rod 300 to slide leftwards, the push rod 110 sequentially passes through the base 100 and the second measuring rod 300 from right to left, the push rod 110 is slidable in the left-right direction, the left end of the push rod 110 is used for driving the first elastic member 400 to move leftwards, the second elastic member 120 is arranged to give a leftward pushing force to the second measuring rod 300, the push rod 110 is arranged to counteract the rightward pushing force of the first elastic member 400, the second measuring rod 300 is pushed to slide leftwards by the pushing force of the second elastic member 120, the magnitude of the contact force between the second measuring rod 300 and the spline 700 can be fixed, the spline 700 is prevented from being crushed by too much contact force, and the measurement result is caused, and, in addition, because the push rod 110 inaccurately counteracts the leftward pushing force of the first elastic member 400, the second elastic member 120 may push the second measuring rod 300 to the left, that is, the operator may not push the push rod 110 any more, and the elastic force of the second elastic member 120 may drive the second measuring rod 300 to automatically slide to the left.
In some embodiments, the second measuring rod 300 includes a sliding portion 310 and an abutting portion 320, the abutting portion 320 is disposed at the upper end of the sliding portion 310, the abutting portion 320 and the first measuring rod 200 are matched to clamp the spline 700, one end of the first elastic member 400 is connected to the base 100, the other end of the first elastic member 400 is connected to the left end of the sliding portion 310, one end of the second elastic member 120 is connected to the base 100, the other end of the second elastic member 120 is connected to the right end of the sliding portion 310, the push rod 110 sequentially penetrates through the base 100 and the sliding portion 310 from right to left, and the disposed sliding portion 310 and the abutting portion 320 are partially defined, simple in structure and convenient to install.
In some embodiments, the device further includes a top bar 130, the top bar 130 is slidably connected to the base 100, the top bar 130 is slidable in a left-right direction, the other end of the first elastic member 400 is connected to the left end of the top bar 130, the right end of the top bar 130 abuts against the sliding portion 310, and the top bar 130 is provided for facilitating the first elastic member 400 to transmit elastic force to the sliding portion 310 and for facilitating the contact between the top bar 130 and the push bar 110 to generate interaction.
The specific measurement mode is as follows:
in an initial state, the push rod 110 and the push rod 130 are connected into a whole, the right thrust of the first elastic member 400 acting on the push rod 130 is greater than the left thrust of the second elastic member 120 acting on the push rod 110, the sliding part 310 is subjected to the right thrust, and the right end of the sliding part 310 is always attached to the base 100;
in the initial state, the first measuring rod 200 and the abutting part 320 form a stable span length value which is set as T0, T0 can be obtained by measurement of other measuring tools, and the T0 value is larger than the maximum span length value designed by the spline 700;
during measurement, the spline 700 is placed on the base 100, the measuring rod 510 is attached to the second measuring rod 300, and the dial indicator is zeroed; when the push rod 110 is pressed down, the right thrust of the first elastic piece 400 on the push rod 130 is overcome, the sliding part 310 is only subjected to the left thrust of the second elastic piece 120, and the second elastic piece 120 pushes the sliding part 310 to move leftwards until the abutting part 320 is attached to the spline 700; the abutting portion 320 moves to the left under the force of the spline 700 until the left end of the spline 700 abuts against the first measuring rod 200, at this time, the absolute value of the variation displayed by the dial indicator is T, and the rod spanning distance of the spline 700 is T0-T, it can be understood that the push rod 110 may be pressed after the spline 700 is clamped on the first measuring rod 200.
In some embodiments, one of the push rod 110 and the push rod 130 is provided with a slot, the other is provided with an insertion block, the insertion block can be inserted into the slot, and the push rod 110 and the push rod 130 can be coaxially arranged.
It is understood that the first and second elastic members 400 and 120 may be one or both of a spring and an elastic rubber block, that is, the first and second elastic members 400 and 120 may be both springs, the first and second elastic members 400 and 120 may be both elastic rubber blocks, and the first and second elastic members 400 and 120 may be springs and elastic rubber blocks, respectively.
In some embodiments, the right end of the push rod 110 is provided with a flange 111, the flange 111 is used for abutting against the base 100, and the flange 111 is arranged to prevent the push rod 110 from being pressed too much when in use, which results in excessive pressure of the second measuring rod 300 on the spline 700.
In some embodiments, the left end of the flange 111 is disposed at a predetermined distance from the base 100 in the left-right direction, and the predetermined distance is a deformation amount for offsetting the rightward thrust of the first elastic member 400, that is, after the first elastic member 400 is deformed leftward by the predetermined distance, the rightward thrust of the first elastic member 400 on the second measuring rod 300 disappears, so as to fix the pressure of the second measuring rod 300 on the spline 700.
In some embodiments, the first measurement stick 200 is detachably connected to the base 100, and the abutting portion 320 is detachably connected to the sliding portion 310, so as to facilitate the replacement of different first measurement sticks 200 and the replacement of different abutting portions 320 according to different splines 700.
In some embodiments, the opposite ends of the first measuring stick 200 and the second measuring stick 300 are provided with an abutting surface 600, the abutting surface 600 is used for abutting against the bottom of the tooth bottom of the spline 700, and the abutting surface 600 is in surface contact with the bottom of the tooth bottom of the spline 700, so that the abutting is more stable.
In some embodiments, the base 100 is connected with a guide pin 140, the guide pin 140 extends in the left-right direction, the second measuring stick 300 is slidably connected to the guide pin 140, and the guide pin 140 is configured to limit the sliding direction of the second measuring stick 300, so as to prevent the second measuring stick 300 from deviating from the sliding direction, which results in inaccurate measuring results.
In some embodiments, the guide pin 140 is provided with a plurality of pins, balances the force applied to the second measuring stick 300, and prevents the second measuring stick 300 from being turned over.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (10)
1. A spline cross-stick distance measuring device, comprising:
a base;
the first measuring rod is connected with the base;
the second measuring rod is connected with the base in a sliding mode and can slide along the left-right direction, the sliding direction line of the second measuring rod passes through the first measuring rod, and the second measuring rod is used for being matched with the first measuring rod to clamp the spline;
one end of the first elastic piece is connected with the base, the other end of the first elastic piece is connected with the second measuring rod, and the first elastic piece is used for driving the second measuring rod to keep a rightward sliding trend;
and the measurer is connected with the base and is used for measuring the sliding distance of the second measuring rod.
2. A spline cross-stick distance measuring device according to claim 1, characterized in that: the device comprises a base, a first elastic piece and a second elastic piece, wherein one end of the first elastic piece is connected with the base, the other end of the first elastic piece is connected with a first measuring rod, the first elastic piece is used for driving the first measuring rod to slide leftwards, the push rod sequentially penetrates through the base and the first measuring rod from right to left, the push rod can slide leftwards and rightwards, and the left end of the push rod is used for driving the first elastic piece to move leftwards.
3. A spline cross-stick distance measuring device according to claim 2, characterized in that: the second measuring rod comprises a sliding portion and an abutting portion, the abutting portion is arranged at the upper end of the sliding portion, the abutting portion and the first measuring rod are matched and clamped with the spline, one end of the first elastic piece is connected with the base, the other end of the first elastic piece is connected with the left end of the sliding portion, one end of the second elastic piece is connected with the base, the other end of the second elastic piece is connected with the right end of the sliding portion, and the push rod sequentially penetrates through the base and the sliding portion from right to left.
4. A spline cross-stick distance measuring device according to claim 3, characterized in that: the base is connected with the first elastic piece through a sliding part, the base is connected with the second elastic piece through a sliding part, and the first elastic piece is connected with the base through a sliding part.
5. A spline cross-stick distance measuring device according to claim 4, characterized in that: the right end of the push rod is provided with a flange, and the flange is used for abutting against the base.
6. A spline cross-stick distance measuring device according to claim 5, characterized in that: the left end of the flange is arranged at a preset distance from the base in the left-right direction.
7. A spline cross-stick distance measuring device according to any one of claims 3 to 6, wherein: the first measuring rod is detachably connected with the base, and the abutting part is detachably connected with the sliding part.
8. A spline cross-stick distance measuring device according to claim 1, characterized in that: the opposite ends of the first measuring rod and the second measuring rod are provided with abutting faces, and the abutting faces are used for abutting against the bottoms of the tooth grooves of the splines.
9. A spline cross-stick distance measuring device according to claim 1, characterized in that: the base is connected with a guide pin, the guide pin extends along the left-right direction, and the second measuring rod is connected to the guide pin in a sliding mode.
10. A spline cross-stick distance measuring device according to claim 9, wherein: the guide pin is provided with a plurality of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121654137.0U CN215491467U (en) | 2021-07-20 | 2021-07-20 | Spline span measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121654137.0U CN215491467U (en) | 2021-07-20 | 2021-07-20 | Spline span measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215491467U true CN215491467U (en) | 2022-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121654137.0U Active CN215491467U (en) | 2021-07-20 | 2021-07-20 | Spline span measuring device |
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| Country | Link |
|---|---|
| CN (1) | CN215491467U (en) |
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2021
- 2021-07-20 CN CN202121654137.0U patent/CN215491467U/en active Active
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