CN216205970U - Pawl wheel square hole concentricity detects frock - Google Patents
Pawl wheel square hole concentricity detects frock Download PDFInfo
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- CN216205970U CN216205970U CN202122591897.8U CN202122591897U CN216205970U CN 216205970 U CN216205970 U CN 216205970U CN 202122591897 U CN202122591897 U CN 202122591897U CN 216205970 U CN216205970 U CN 216205970U
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Abstract
The utility model belongs to the technical field of machine part detection tools, and particularly relates to a detection tool for a pawl wheel square hole, which comprises a detection tool square shaft and a detection round tool, wherein one end of the detection tool square shaft is a square insertion part, the other end of the detection tool square shaft is a round rotating shaft, a transversely arranged digging groove is further formed in the middle of the detection tool square shaft, a strip-shaped bearing is arranged in the digging groove, the thickness of the strip-shaped bearing is larger than the depth of the digging groove, the detection round tool is of a round columnar structure, a round through hole is formed in the axis position of the detection round tool, and the inner diameter of the round through hole is equal to the outer diameter of the strip-shaped bearing.
Description
Technical Field
The utility model belongs to the technical field of mechanical part detection tools, and particularly relates to a detection tool for a pawl wheel square hole.
Background
The pawl is a part for shifting the ratchet wheel to do intermittent motion, the pawl is driven by the connecting rod to do reciprocating motion so as to drive the ratchet wheel to do unidirectional motion and be used for clamping the ratchet wheel and enabling the ratchet wheel to do unidirectional motion, and the structural part is locked reversely.
The concentricity detection efficiency of the square hole of the pawl in the prior art is low, and the structure of the detection equipment is complex, so that a simple detection device is needed for detecting the concentricity of the pawl.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model aims to provide the ratchet wheel concentricity detection tool which is simple in structure, quick to operate and high in detection precision.
In order to achieve the purpose, the utility model provides a ratchet wheel square hole concentricity detection tool which comprises a detection tool square shaft and a detection round tool, wherein one end of the detection tool square shaft is a square insertion part, the other end of the detection tool square shaft is a round rotating shaft, a transversely arranged digging groove is further formed in the middle of the detection tool square shaft, a strip-shaped bearing is arranged in the digging groove, the thickness of the strip-shaped bearing is larger than the depth of the digging groove, the detection round tool is of a round columnar structure, a round through hole is formed in the axis position of the detection round tool, and the inner diameter of the round through hole is equal to the outer diameter of the strip-shaped bearing.
The center part of one side of the circular tool is provided with a groove which is sunken downwards, and the shape of the groove is circular.
The utility model has the beneficial effects that: compared with complex detection equipment, the utility model has simple structure and convenient operation, and can effectively detect the concentricity of the pawl wheel and improve the precision of parts.
Drawings
For ease of illustration, the present invention is described in detail by the following preferred embodiments and the accompanying drawings.
FIG. 1 is a sectional view of a tool for detecting concentricity of a square hole of a pawl wheel according to the utility model;
FIG. 2 is a schematic view of the ratchet wheel of the present invention being inspected;
FIG. 3 is a schematic view of a square shaft of the inspection tool of the present invention;
FIG. 4 is a schematic view of the circular tool for inspection according to the present invention
In the figure: 1-pawl wheel, 101-square bearing hole, 102-notch, 103-hexagon bolt, 104-round boss, 105-coaming, 2-square shaft of detection tool, 201-square insertion part, 202-round rotating shaft, 203-belt bearing, 204-groove, 3-round tool of detection, 301-round through hole and 302-groove.
Detailed Description
The concentricity detection tool for the square hole of the pawl wheel is further described with reference to the attached drawings as follows:
as shown in fig. 1-4, a square bearing hole 101 is provided at the central portion of the ratchet wheel 1, a notch 102 is provided at one corner of the square bearing hole 101, the notch 102 extends towards the upper edge of the ratchet wheel 1, so as to divide the upper portion of the ratchet wheel 1 into two parts by the notch 102, the lower portion of the ratchet wheel 1 is an integrally formed structure, a hexagonal bolt 103 for clamping the notch 102 and the square bearing hole 101 is provided at the top edge of the notch 102 of the ratchet wheel 1, when the rotary bearing or the square shaft 2 of the detection tool is inserted into the square bearing hole 101, the rotary bearing or the square shaft of the detection tool can be locked and fixed by locking the hexagonal bolt 103, a circular boss 104 protruding upwards is formed around the square bearing hole 101 at the center of the ratchet wheel 1, and a circle of coaming 105 extending upwards and integrally formed is further surrounded on the outermost periphery of the ratchet wheel 1.
In the concentricity detection process, a detection tool square shaft 2 serving as a detection reference is inserted into a square bearing hole 101, whether a square insertion part 201 is matched with the square bearing hole 101 or not and whether the square insertion part can move up and down in the square bearing hole 101 without hindrance or not is detected, then a hexagonal bolt 103 at the edge of a notch 102 is screwed, and the square insertion part 201 inserted into the square bearing hole 101 is locked;
then, a circular through hole 301 for detecting the axis position of the circular tool 3 is sleeved on the circular rotating shaft 202, a strip-shaped bearing 203 is further arranged at a position of the circular rotating shaft 202 close to the middle, a groove 204 surrounding the circular rotating shaft 202 is arranged at a corresponding position of the circular rotating shaft 202 for fixing the strip-shaped bearing 203, the strip-shaped bearing 203 is slightly higher than the side surface of the circular rotating shaft 202, after the circular tool 3 is sleeved on the circular rotating shaft 202, the circular through hole 301 can be just sleeved outside the strip-shaped bearing 203, and a groove 302 capable of being matched with the circular through hole is arranged on the circular tool 3 for matching with the circular boss 104 on the pawl wheel 1, and the outer diameter of the circular tool 3 is slightly smaller than the inner diameter of the surrounding plate 105 on the pawl wheel 1.
When the concentricity of the ratchet wheel 1 is good, the entering depth of the detection circular tool 3 can be observed at a notch at the top of the ratchet wheel 1 after the detection circular tool 3 is sleeved on the circular rotating shaft 202, if the entering depth of the detection circular tool 3 is deep, the concentricity of the square bearing hole 101 of the ratchet wheel 1 and an external coaming 105 is good, otherwise, the concentricity is poor, after the detection circular tool 3 is sleeved on the circular rotating shaft 202, the detection circular tool 3 can rotate through a belt-shaped bearing 203 on the detection circular tool, if the concentricity of the ratchet wheel 1 and the square bearing hole 101 is good, the detection circular tool 3 can easily rotate, and a gap between the detection circular tool and the coaming 105 is uniform, otherwise, if the detection circular tool cannot easily rotate, and one side of the gap which is not uniform is large and the other side of the gap is small, the concentricity of the ratchet wheel 1 and the square bearing hole 101 is poor.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (2)
1. The utility model provides a pawl wheel square hole concentricity detects frock which characterized in that: including detecting frock square shaft (2) and detecting circular frock (3), it is square grafting portion (201) to detect frock square shaft (2) one end, it is circular rotation axis (202) to detect frock square shaft (2) other end, be equipped with horizontal grooving (204) that set up on the middle part of detecting frock square shaft (2), be equipped with banded bearing (203) in grooving (204), the thickness of banded bearing (203) is greater than the degree of depth of grooving (204), it is circular column body structure to detect circular frock (3), the axle center position that detects circular frock (3) is equipped with circular through-hole (301), the internal diameter of circular through-hole (301) is equal to the external diameter at banded bearing (203) position.
2. The pawl wheel square hole concentricity detects frock of claim 1, characterized in that: the center part of detecting circular frock (3) one side is equipped with undercut recess (302), the shape of recess (302) is circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122591897.8U CN216205970U (en) | 2021-10-27 | 2021-10-27 | Pawl wheel square hole concentricity detects frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122591897.8U CN216205970U (en) | 2021-10-27 | 2021-10-27 | Pawl wheel square hole concentricity detects frock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216205970U true CN216205970U (en) | 2022-04-05 |
Family
ID=80890720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122591897.8U Active CN216205970U (en) | 2021-10-27 | 2021-10-27 | Pawl wheel square hole concentricity detects frock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216205970U (en) |
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2021
- 2021-10-27 CN CN202122591897.8U patent/CN216205970U/en active Active
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