CN212458235U - Tower crane motor shaft symmetry degree detection tool - Google Patents
Tower crane motor shaft symmetry degree detection tool Download PDFInfo
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- CN212458235U CN212458235U CN202021246818.9U CN202021246818U CN212458235U CN 212458235 U CN212458235 U CN 212458235U CN 202021246818 U CN202021246818 U CN 202021246818U CN 212458235 U CN212458235 U CN 212458235U
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- motor shaft
- tower crane
- supporting rod
- hole
- dial indicator
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Abstract
The utility model discloses a tower crane motor shaft symmetry degree checking fixture, which comprises a horizontal mounting plate, wherein one end of the mounting plate is an inserting end, and the inserting end is matched with a key groove arranged at the front end of a tower crane motor shaft to be detected and is used for being inserted and arranged in the key groove; a strip-shaped positioning seat is fixed above the other end of the mounting plate, a strip-shaped mounting hole is formed in the positioning seat, a vertical upward supporting rod is arranged above the positioning seat, the lower end of the supporting rod is a sliding matching end and is arranged in the mounting hole in a horizontally sliding matching mode, a horizontal supporting plate is connected to the supporting rod, and a vertically through inserting hole is formed in the supporting plate; a dial indicator is arranged corresponding to the inserting hole, the detection probe end of the dial indicator is vertically downward and inserted into the inserting hole, and the detection probe end of the dial indicator can abut against the surface of the motor shaft of the tower crane to be detected; the utility model has the advantages of can be applicable to better and detect not unidimensional axle class, can improve detection efficiency.
Description
Technical Field
The utility model belongs to the technical field of tower crane motor shaft examines utensil, concretely relates to utensil is examined to tower crane motor shaft symmetry.
Background
In the prior art, the symmetry degree of a short shaft key groove is generally checked on a 3603A gear detector. The shaft part is longer in overall length and higher in precision requirement. And detecting the symmetry degree of the key groove on three coordinates. The 3603A gear detector is inconvenient to operate and low in efficiency. The accuracy is relatively unstable. The three-coordinate detector has high detection precision. But the shaft is long, so the clamping is inconvenient and the operation is relatively slow. Aiming at shaft parts with large batch and different overall lengths, the two detection modes have certain defects, and 1, the 3603A gear detector is adopted, so that the operation is slow, and the detection has errors. Therefore, the detection efficiency is reduced for batch product detection, the field processing progress is influenced, and the production efficiency is reduced. 2. And a three-coordinate detection instrument is adopted for detection, although the detection precision is higher. However, the total length of the shaft parts is different, so the operation is not convenient. Therefore, on one hand, the detection efficiency is low, and on the other hand, the processing is also influenced to a certain extent.
In the prior art, chinese patent (CN201974150U) discloses a detection tool for detecting symmetry of a crankshaft key slot of an automobile engine, which is characterized in that: including gauge stand, location gage block and percentage table, the location gage block for with the square piece of the keyway clearance fit of crankshaft under test, the lower terminal surface of gauge stand cooperatees with square piece, the percentage table is connected with one side of gauge stand, the measuring stick of percentage table is mutually perpendicular with the lower terminal surface of gauge stand, the thickness of location gage block sets up to the multiunit according to the tolerance size of the keyway of crankshaft under test, every group interval is 0.005mm, the percentage table passes through the connecting rod and is connected with the gauge stand, be equipped with 1 at least through-hole on the connecting rod. The Chinese patent application (CN109780978A) discloses a semi-circular key groove symmetry degree checking fixture, which comprises a plug board inserted into a semi-circular key groove on a camshaft, wherein the upper surface and the lower surface of the plug board are attached to the groove wall of the semi-circular key groove, a support frame is fixedly arranged on the upper surface or the lower surface of the plug board, a dial indicator is detachably arranged on the support frame, and a measuring head of the dial indicator abuts against the camshaft; the inserting plate is inserted into the semicircular key groove, the upper surface of the inserting plate faces upwards, the measuring head of the dial indicator abuts against the cam shaft, the reading of the dial indicator is read, then the upper surface of the inserting plate faces downwards, the measuring head of the dial indicator abuts against the cam shaft, the reading of the dial indicator is read, and the symmetry degree of the semicircular key groove can be detected by calculating the difference value of the readings of the two measuring results, so that the operation is convenient, and the measurement is accurate and reliable. The two patent structures have the defects of inconvenient detection, low detection efficiency and poor applicability.
Therefore, how to just provide a simple structure, can be applicable to better and detect not unidimensional axle class, can improve detection efficiency, detect the utensil is examined to the higher tower crane motor shaft symmetry of precision, become the technical problem that technical staff in the field awaited solution.
SUMMERY OF THE UTILITY MODEL
To the not enough of above-mentioned prior art, the utility model aims to solve the technical problem that: how to provide a simple structure can be applicable to better and detect not unidimensional axle class, can improve detection efficiency, detects the utensil is examined to the tower crane motor shaft symmetry that the precision is higher.
In order to solve the technical problem, the utility model discloses a following technical scheme:
a tower crane motor shaft symmetry degree gauge comprises a horizontal mounting plate and is characterized in that one end of the mounting plate is an insertion end, and the insertion end is matched with a key groove formed in the front end of a tower crane motor shaft to be detected and is used for being inserted into the key groove; a strip-shaped positioning seat is fixed above the other end of the mounting plate, a strip-shaped mounting hole is formed in the positioning seat, a vertical upward supporting rod is arranged above the positioning seat, the lower end of the supporting rod is a sliding matching end and is arranged in the mounting hole in a horizontally sliding matching mode, a horizontal supporting plate is connected to the supporting rod, and a vertically through inserting hole is formed in the supporting plate; a dial indicator is arranged corresponding to the inserting hole, the detection probe end of the dial indicator is vertically downward and inserted into the inserting hole, and the detection probe end of the dial indicator can abut against the surface of the motor shaft of the tower crane to be detected; and still paste mutually and be equipped with the drive block on the positioning seat upper surface, be equipped with the hole of stepping down that supplies the bracing piece to pass through vertically on the drive block, and promote the drive block can drive bracing piece horizontal migration in the mounting hole.
When the tower crane motor shaft symmetry degree gauge is used, the inserting end of the mounting plate is inserted into a key groove formed in the front end of a tower crane motor shaft to be detected, then the detection probe end at the lower end of the dial indicator abuts against the outer peripheral surface of the tower crane motor shaft, then the driving plate is pushed, so that the supporting rod and the dial indicator on the supporting rod horizontally slide along the length direction of the mounting hole, and the offset of the pointer of the dial indicator is recorded; then rotating the motor shaft of the tower crane to be detected for 180 degrees, measuring according to the method and recording the pointer offset of the dial indicator; and determining the symmetry degree of the key groove of the motor shaft of the tower crane according to the measured offset twice. The checking fixture structure has the advantages of being simple in structure, capable of better detecting the key grooves of the tower crane motor shafts with different length sizes, capable of improving detection efficiency and high in detection precision.
Preferably, the inserting holes are arranged at intervals along the length direction of the supporting plate.
Like this, through setting up the spliced eye into a plurality ofly, through the spliced eye of chooseing for use different positions, can make things convenient for more to detect not unidimensional tower crane motor shaft keyway, the suitability is better.
Preferably, the number of the plug holes is 4.
Like this, set up the spliced eye into 4, the design number is more reasonable.
Preferably, the lower end of the support rod has a rectangular cross-section with at least a partial length to form the sliding engagement end.
Like this, have some designs into the cross-section with the lower extreme of bracing piece and be the rectangle for the bracing piece lower extreme can better with the mounting hole cooperation, avoids the incline of bracing piece better, makes to detect the precision higher.
Preferably, the upper end of the supporting rod is of a threaded rod structure, a positioning nut is arranged in the middle of the supporting rod in a threaded fit mode, and the lower end face of the positioning nut is attached to the upper surface of the driving block; and the lower end surface of the supporting rod is positioned above the lower end surface of the mounting hole.
Like this, through setting up set nut for terminal surface setting under terminal surface interval mounting hole under with the bracing piece through set nut reduces the friction when removing the bracing piece, makes more facilitate the use, and can avoid it to produce the incline better, improves the precision.
As an optimization, one end of the supporting plate corresponding to the supporting rod is provided with a threaded connecting hole, the supporting plate is in threaded connection with the supporting rod, a locking nut is further arranged at the upper end of the supporting rod, and the lower end of the locking nut is attached to and supported on the upper surface of the supporting plate.
Therefore, the position of the supporting plate relative to the supporting rod can be adjusted more conveniently, and the use is more convenient.
And as optimization, a horizontal screw hole is arranged on the side surface of the supporting plate corresponding to the inserting hole, a jacking screw is arranged in the screw hole, and the inner end of the jacking screw can be abutted and supported on the dial indicator so as to vertically position the dial indicator.
Therefore, the dial indicator can be positioned and locked more conveniently, and the dial indicator is more convenient to use.
Drawings
Fig. 1 is a schematic structural diagram of a synchronizer in a conventional design.
Detailed Description
The invention will be further explained with reference to the following figures and examples:
referring to FIG. 1: a tower crane motor shaft symmetry degree gauge comprises a horizontal mounting plate 1 and is characterized in that one end of the mounting plate is an insertion end, and the insertion end is matched with a key groove formed in the front end of a tower crane motor shaft 2 to be detected and is used for being inserted into the key groove; a strip-shaped positioning seat 3 is fixed above the other end of the mounting plate, a strip-shaped mounting hole 4 is formed in the positioning seat, a vertically upward supporting rod 5 is arranged above the positioning seat, the lower end of the supporting rod is a sliding matching end and is arranged in the mounting hole in a horizontally sliding matching mode, a horizontal supporting plate is connected to the supporting rod, and a vertically through inserting hole 6 is formed in the supporting plate; a dial indicator 7 is arranged corresponding to the inserting hole, the detection probe end of the dial indicator is vertically downward and inserted into the inserting hole, and the detection probe end of the dial indicator can abut against the surface of the motor shaft of the tower crane to be detected; and still paste mutually and be equipped with drive block 8 on the positioning seat upper surface, be equipped with the hole of stepping down that supplies the bracing piece to pass through vertically on the drive block, and promote the drive block can drive the bracing piece at the downthehole horizontal migration of mounting hole.
When the tower crane motor shaft symmetry degree gauge is used, the inserting end of the mounting plate is inserted into a key groove formed in the front end of a tower crane motor shaft to be detected, then the detection probe end at the lower end of the dial indicator abuts against the outer peripheral surface of the tower crane motor shaft, then the driving plate is pushed, so that the supporting rod and the dial indicator on the supporting rod horizontally slide along the length direction of the mounting hole, and the offset of the pointer of the dial indicator is recorded; then rotating the motor shaft of the tower crane to be detected for 180 degrees, measuring according to the method and recording the pointer offset of the dial indicator; and determining the symmetry degree of the key groove of the motor shaft of the tower crane according to the measured offset twice. The checking fixture structure has the advantages of being simple in structure, capable of better detecting the key grooves of the tower crane motor shafts with different length sizes, capable of improving detection efficiency and high in detection precision. During concrete implementation, the mounting panel other end design is the second end of pegging graft, and makes the thickness of pegging graft end and second end of pegging graft be the setting that varies, makes its cooperation of pegging graft with the keyway of unidimensional not like this to the symmetry detects to different keyways in order to carry out the symmetry in the better place.
In this embodiment, the insertion holes 6 are plural and are arranged at intervals along the length direction of the support plate.
Like this, through setting up the spliced eye into a plurality ofly, through the spliced eye of chooseing for use different positions, can make things convenient for more to detect not unidimensional tower crane motor shaft keyway, the suitability is better.
In this embodiment, the number of the insertion holes 6 is 4.
Like this, set up the spliced eye into 4, the design number is more reasonable.
In this embodiment, the lower end of the support rod 5 has a rectangular cross-section with at least a partial length to form the sliding engagement end.
Like this, have some designs into the cross-section with the lower extreme of bracing piece and be the rectangle for the bracing piece lower extreme can better with the mounting hole cooperation, avoids the incline of bracing piece better, makes to detect the precision higher.
In the specific embodiment, the upper end of the support rod 5 is of a threaded rod structure, a positioning nut 9 is arranged in the middle of the support rod in a threaded fit manner, and the lower end face of the positioning nut is attached to the upper surface of the driving block; and the lower end surface of the supporting rod is positioned above the lower end surface of the mounting hole.
Like this, through setting up set nut for terminal surface setting under terminal surface interval mounting hole under with the bracing piece through set nut reduces the friction when removing the bracing piece, makes more facilitate the use, and can avoid it to produce the incline better, improves the precision.
In this embodiment, the supporting plate is provided with a threaded connection hole at one end corresponding to the supporting rod, the supporting plate is in threaded connection with the supporting rod, the upper end of the supporting rod is further provided with a locking nut 10, and the lower end of the locking nut is attached to the upper surface of the supporting plate.
Therefore, the position of the supporting plate relative to the supporting rod can be adjusted more conveniently, and the use is more convenient.
In the specific embodiment, a horizontal screw hole is formed in the side face of the supporting plate corresponding to the inserting hole, a jacking screw 11 is arranged in the screw hole, and the inner end of the jacking screw can be supported on the dial indicator in an abutting mode so as to vertically position the dial indicator.
Therefore, the dial indicator can be positioned and locked more conveniently, and the dial indicator is more convenient to use.
The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.
Claims (7)
1. A tower crane motor shaft symmetry degree gauge comprises a horizontal mounting plate, and is characterized in that one end of the mounting plate is an insertion end, and the insertion end is matched with a key groove formed in the front end of a tower crane motor shaft to be detected and is used for being inserted into the key groove; a strip-shaped positioning seat is fixed above the other end of the mounting plate, a strip-shaped mounting hole is formed in the positioning seat, a vertical upward supporting rod is arranged above the positioning seat, the lower end of the supporting rod is a sliding matching end and is arranged in the mounting hole in a horizontally sliding matching mode, a horizontal supporting plate is connected to the supporting rod, and a vertically through inserting hole is formed in the supporting plate; a dial indicator is arranged corresponding to the inserting hole, the detection probe end of the dial indicator is vertically downward and inserted into the inserting hole, and the detection probe end of the dial indicator can abut against the surface of the motor shaft of the tower crane to be detected; and still paste mutually and be equipped with the drive block on the positioning seat upper surface, be equipped with the hole of stepping down that supplies the bracing piece to pass through vertically on the drive block, and promote the drive block can drive bracing piece horizontal migration in the mounting hole.
2. The tower crane motor shaft symmetry degree inspection device of claim 1, characterized in that: the spliced eye is a plurality of and is the interval setting along backup pad length direction.
3. The tower crane motor shaft symmetry degree inspection device of claim 2, characterized in that: the number of the inserting holes is 4.
4. The tower crane motor shaft symmetry degree inspection device of claim 1, characterized in that: the lower end of the support rod is at least provided with a part of length section, and the section of the support rod is rectangular to form the sliding matching end.
5. The tower crane motor shaft symmetry degree inspection device of claim 1, characterized in that: the upper end of the supporting rod is of a threaded rod structure, a positioning nut is arranged in the middle of the supporting rod in a threaded fit mode, and the lower end face of the positioning nut is attached to the upper surface of the driving block; and the lower end surface of the supporting rod is positioned above the lower end surface of the mounting hole.
6. The tower crane motor shaft symmetry degree inspection device of claim 5, characterized in that: one end of the supporting plate corresponding to the supporting rod is provided with a threaded connecting hole and is in threaded connection with the supporting rod, a locking nut is further arranged at the upper end of the supporting rod, and the lower end of the locking nut is attached to the upper surface of the supporting plate.
7. The tower crane motor shaft symmetry degree inspection device of claim 1, characterized in that: the side face of the supporting plate is provided with a horizontal screw hole corresponding to the inserting hole, a jacking screw is arranged in the screw hole, and the inner end of the jacking screw can be abutted and supported on the dial indicator to vertically position the dial indicator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021246818.9U CN212458235U (en) | 2020-06-29 | 2020-06-29 | Tower crane motor shaft symmetry degree detection tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021246818.9U CN212458235U (en) | 2020-06-29 | 2020-06-29 | Tower crane motor shaft symmetry degree detection tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212458235U true CN212458235U (en) | 2021-02-02 |
Family
ID=74461723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021246818.9U Expired - Fee Related CN212458235U (en) | 2020-06-29 | 2020-06-29 | Tower crane motor shaft symmetry degree detection tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212458235U (en) |
-
2020
- 2020-06-29 CN CN202021246818.9U patent/CN212458235U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210202 |