CN211262085U - Depth gauge for central holes at two ends of crankshaft - Google Patents
Depth gauge for central holes at two ends of crankshaft Download PDFInfo
- Publication number
- CN211262085U CN211262085U CN201922404395.2U CN201922404395U CN211262085U CN 211262085 U CN211262085 U CN 211262085U CN 201922404395 U CN201922404395 U CN 201922404395U CN 211262085 U CN211262085 U CN 211262085U
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- hole
- handle
- cylinder
- round platform
- crankshaft
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- 125000003003 spiro group Chemical group 0.000 claims abstract description 4
- 239000002023 wood Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 3
- 238000003754 machining Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model provides an utensil is examined to degree of depth of bent axle both ends centre bore, it includes round platform, cylinder, locating piece and bolt, the round platform is fixed on the cylinder, the generating line of round platform is less than 30 with the contained angle of axis, the diameter of bottom surface is the same with the diameter of being surveyed the bent axle centre bore on the round platform, the through-hole has been seted up on the locating piece, the cylinder passes the through-hole and can the relative positioning piece slide, the locating piece is equipped with the screw hole at through-hole position external opening, the bolt spiro union is on the screw hole, makes the degree of depth detection convenient operation and efficient of bent axle both ends centre.
Description
Technical Field
The utility model relates to a bent axle both ends centre bore detection area especially relates to an utensil is examined to degree of depth of bent axle both ends centre bore.
Background
The crankshaft is an important accessory of the engine, bears the power output of the engine, has high precision requirement, and therefore, the crankshaft must be strictly detected in various dimensions during production and manufacturing, and must be kept within a normal error range. As shown in fig. 2, when the depth h of the central hole is detected, since an opening is formed outside the central hole and an included angle a between an upper bus and a lower bus of the opening is 60 °, the vernier caliper cannot extend into the circular truncated cone to measure the central hole.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a utensil is examined to degree of depth of bent axle both ends centre bore convenient operation and efficient.
The technical scheme of the utility model is realized like this: the utility model provides an utensil is examined to degree of depth of bent axle both ends centre bore, it includes round platform, cylinder, locating piece and bolt, its characterized in that: the round platform is fixed on the cylinder, the generating line of round platform and the contained angle of axis are less than 30, the diameter of bottom surface is the same with the diameter of surveyed bent axle centre bore on the round platform, the through-hole has been seted up on the locating piece, the cylinder passes the through-hole and can slide by relative positioning piece, the locating piece is equipped with the screw hole at the through-hole position external-open, the bolt spiro union is on the screw hole.
On the basis of the above technical scheme, preferably, an included angle between a generatrix of the circular truncated cone and the axis is 20 °.
On the basis of the technical scheme, the circular truncated cone rotary table further comprises a handle, the handle comprises a fixed seat and a handle, the fixed seat is fixed to the other end, opposite to the circular truncated cone, of the cylinder, and the handle is fixed to the fixed seat.
Still more preferably, the handle is made of wood.
Still further preferably, the pull tab length is greater than the through hole diameter.
The utility model discloses an utensil is examined to degree of depth of bent axle both ends centre bore has following beneficial effect for prior art:
(1) the round platform is fixed on the cylinder by arranging the round platform, the cylinder, the positioning block and the bolt, an included angle between a bus of the round platform and an axis is less than 30 degrees, the diameter of the upper bottom surface of the round platform is the same as that of a central hole of a crankshaft to be detected, the positioning block is provided with a through hole, the cylinder penetrates through the through hole and can slide relative to the positioning block, the positioning block is provided with a threaded hole outwards at the position of the through hole, and the bolt is in threaded connection with the threaded hole, so that the depth detection operation of the central holes at two ends;
(2) through setting up the handle, conveniently promote the cylinder and slide on the locating piece.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a perspective view of a depth gauge for center holes at two ends of a crankshaft of the present invention;
fig. 2 is a structural diagram of the center holes at the two ends of the crankshaft of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.
As shown in fig. 1, combine fig. 2, the utility model discloses a utensil is examined to degree of depth of bent axle both ends centre bore, it includes round platform 1, cylinder 2, locating piece 3, bolt 4 and handle 5.
The round platform 1 is fixed on the cylinder 2, the contained angle of the generating line of round platform 1 and axis is less than 30, the diameter of bottom surface is the same with the diameter of surveyed bent axle centre bore on the round platform 1, set up through-hole 31 on the locating piece 3, the cylinder 2 passes through-hole 31 and can slide relative to locating piece 3, locating piece 3 is outwards set up threaded hole 32 in through-hole 31 position, bolt 4 spiro union is on threaded hole 32. Thus, when the depth of the central holes at the two ends of the crankshaft is measured, the circular truncated cone 1 is firstly put into the opening outside the central hole, then the positioning block 3 is tightly attached to the surface of the opening outside the central hole, so that the axis of the circular truncated cone 1 is parallel to the axis of the central hole, the cylinder 2 is pushed to ensure that the axis of the circular truncated cone 1 is superposed with the axis of the central hole, the upper bottom surface of the circular truncated cone 1 is superposed with the end surface of the central hole at the moment, because the diameter of the upper bottom surface of the circular truncated cone 1 is the same as that of the central hole of the crankshaft to be measured, the circular truncated cone 1 cannot be pushed into the central hole, at the moment, the column 2 and the positioning block 3 are fixed by the screwing bolt 4, the depth gauge of the center holes at the two ends of the crankshaft is taken out, the distance L from the lower end face of the circular truncated cone 1 to the side face, close to the circular truncated cone 1, of the positioning block 3 is measured by using a vernier caliper, the height of the circular truncated cone 1 is determined to be M during design, and the value of the depth h of the center hole is the sum of L and M. As shown in fig. 2, since the included angle a between the upper and lower generatrices of the outer opening of the central hole is 60 °, in order to enable the circular truncated cone 1 to be placed in the outer opening of the central hole, the included angle between the generatrices of the circular truncated cone 1 and the axis is less than 30 °.
Specifically, the included angle between the generatrix of the circular truncated cone 1 and the axis is 20 degrees, or the included angle between the generatrix of the circular truncated cone 1 and the axis is 5 degrees, or the included angle between the generatrix of the circular truncated cone 1 and the axis is 10 degrees, or the included angle between the generatrix of the circular truncated cone 1 and the axis is 15 degrees, or the included angle between the generatrix of the circular truncated cone 1 and the axis is 25 degrees. More specifically, because there may be a small error in the machining process of the circular truncated cone 1, when the included angle between the generatrix of the circular truncated cone 1 and the axis is 20 °, the circular truncated cone 1 can be used as long as the error is within 10 °, and the requirement on the machining accuracy is low.
The positioning block 3 is used for positioning the circular truncated cone 1, and when the positioning block 3 is attached to the surface of the opening outside the central hole, the axis of the circular truncated cone 1 can be parallel to the axis of the central hole.
The bolt 4 is used for fixing the cylinder 2 and the positioning block 3.
The handle 5 is used for pushing the cylinder to slide on the positioning block, specifically, the handle 5 includes a fixing seat 51 and a handle 52, the fixing seat 51 is fixed at the other end of the cylinder 2 opposite to the circular table 1, and the handle 52 is fixed on the fixing seat 51, so that a user can hold the handle conveniently and use the handle.
In particular, the handle 5 is made of wood, so that a user can hold the handle more comfortably.
Specifically, handle 52 length on handle 5 is greater than the through-hole 31 diameter, prevents that locating piece 3 from dropping from handle 5, when handle 52 length on handle 5 is greater than the through-hole 31 diameter, only need during the carrying hold cylinder 2 can, make things convenient for the carrying of the degree of depth of bent axle both ends centre bore examine utensil.
The working principle of the depth gauge for the center holes at two ends of the crankshaft is that when the depth of the center holes at two ends of the crankshaft is measured, a circular truncated cone 1 is firstly placed into an opening outside the center hole, then a positioning block 3 is attached to the surface of the opening outside the center hole, so that the axis of the circular truncated cone 1 is parallel to the axis of the center hole, a handle 5 pushes a cylinder 2 to enable the axis of the circular truncated cone 1 to coincide with the axis of the center hole, the upper bottom surface of the circular truncated cone 1 coincides with the end surface of the center hole, the circular truncated cone 1 cannot be pushed into the center hole due to the fact that the diameter of the upper bottom surface of the circular truncated cone 1 is the same as the diameter of the center hole of the crankshaft to be measured, a screwing bolt 4 fixes the cylinder 2 and the positioning block 3 at the moment, the depth gauge for the center holes at two ends of the crankshaft is taken out, the distance L from, the depth h of the central hole is the sum of L and M.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides an utensil is examined to degree of depth of bent axle both ends centre bore, its includes round platform (1), cylinder (2), locating piece (3) and bolt (4), its characterized in that: round platform (1) is fixed on cylinder (2), the generating line of round platform (1) is less than 30 with the contained angle of axis, the diameter of bottom surface is the same with the diameter of surveyed bent axle centre bore on round platform (1), through-hole (31) have been seted up on locating piece (3), cylinder (2) pass through-hole (31) and can slide relative positioning piece (3), locating piece (3) are equipped with screw hole (32) in through-hole (31) position external opening, bolt (4) spiro union is on screw hole (32).
2. The depth gauge for center holes in two ends of a crankshaft as claimed in claim 1, wherein: the included angle between the generatrix of the circular truncated cone (1) and the axis is 20 degrees.
3. The depth gauge for center holes in two ends of a crankshaft as claimed in claim 1, wherein: the round table is characterized by further comprising a handle (5), wherein the handle (5) comprises a fixed seat (51) and a handle (52), the fixed seat (51) is fixed at the other end, opposite to the round table (1), of the cylinder (2), and the handle (52) is fixed on the fixed seat (51).
4. The depth gauge for center holes in two ends of a crankshaft as claimed in claim 3, wherein: the handle (5) is made of wood.
5. The depth gauge for center holes in two ends of a crankshaft as claimed in claim 4, wherein: the length of the handle (52) is larger than the diameter of the through hole (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922404395.2U CN211262085U (en) | 2019-12-27 | 2019-12-27 | Depth gauge for central holes at two ends of crankshaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922404395.2U CN211262085U (en) | 2019-12-27 | 2019-12-27 | Depth gauge for central holes at two ends of crankshaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211262085U true CN211262085U (en) | 2020-08-14 |
Family
ID=71956697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922404395.2U Active CN211262085U (en) | 2019-12-27 | 2019-12-27 | Depth gauge for central holes at two ends of crankshaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211262085U (en) |
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2019
- 2019-12-27 CN CN201922404395.2U patent/CN211262085U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A depth gauge for the center holes at both ends of the crankshaft Granted publication date: 20200814 Pledgee: Agricultural Bank of China Danjiangkou Branch Pledgor: DANJIANGKOU DONGFA CRANKSHAFT Co.,Ltd. Registration number: Y2024980014834 |