CN217303828U - Detection apparatus for assembly accuracy - Google Patents
Detection apparatus for assembly accuracy Download PDFInfo
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- CN217303828U CN217303828U CN202220371105.8U CN202220371105U CN217303828U CN 217303828 U CN217303828 U CN 217303828U CN 202220371105 U CN202220371105 U CN 202220371105U CN 217303828 U CN217303828 U CN 217303828U
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Abstract
The utility model discloses a detection apparatus for assembly precision relates to pump body assembly technical field, and the main objective is the assembly error of being convenient for in time detect stator barrel body part. The utility model discloses a main technical scheme does: detection device of assembly accuracy, the device includes: the base plate, the adjusting base and the rotating part; a plurality of adjusting screws are fixed on the circumference of the foundation slab; the adjusting base comprises an adjusting bottom plate and a stand column shaft, the adjusting bottom plate is coaxially connected with the lower end of the stand column shaft, a plurality of jackscrew holes and a plurality of adjusting through holes are uniformly distributed on the circumference of the adjusting bottom plate, each jackscrew hole is in threaded connection with one adjusting jackscrew, each adjusting through hole corresponds to one adjusting screw, and the upper end of each adjusting screw is in threaded connection with a clamping nut; the rotating part comprises an angular contact bearing and a balance turntable, the inner ring of the angular contact bearing is in interference fit with the upper end of the stand column shaft, and the outer ring of the angular contact bearing is connected to the balance turntable.
Description
Technical Field
The utility model relates to a pump body assembly technical field especially relates to a detection apparatus for assembly precision.
Background
The canned motor pump has wide application in chemical production, and the stator canned motor of the canned motor pump is frequently damaged due to abrasion, corrosion and the like in operation. In the past, the shielding sleeve can only be scrapped or returned to a manufacturer for maintenance, and the maintenance and assembly work on the use site can be realized after the field manufacturing technology of the shielding sleeve is overcome. However, the problem that the positioning accuracy of the end plates at the two ends is not good frequently in the process of reinstalling after the stator component is disassembled for maintenance, which causes the maintenance failure is also followed.
Theoretically, the assembly only needs to ensure the end face precision (end face roundness and planeness) of the stator cylinder and the precision (the perpendicularity and planeness) of the front end plate spigot and the rear end plate spigot, so that the precision after the assembly can be ensured. However, since the stator barrel part with the coil mounted thereon has a heavy weight (500-.
Therefore, a device needs to be developed, which can realize the precision detection of the stator barrel component, the assembly precision detection of the front end plate and the rear end plate, and the end face detection of longer and heavier components.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a detection device of assembly precision, the main objective is the assembly error who is convenient for in time detect stator barrel casing part.
In order to achieve the above object, the utility model mainly provides the following technical scheme:
the utility model provides a detection apparatus for assembly precision, the device includes: the base plate, the adjusting base and the rotating part;
a plurality of adjusting screws are fixed on the circumference of the foundation bottom plate;
the adjusting base comprises an adjusting bottom plate and a stand column shaft, the adjusting bottom plate is coaxially connected with the lower end of the stand column shaft, a plurality of jackscrew holes and a plurality of adjusting through holes are uniformly distributed on the circumference of the adjusting bottom plate, each jackscrew hole is in threaded connection with one adjusting jackscrew, each adjusting through hole corresponds to one adjusting screw, and the upper end of each adjusting screw is in threaded connection with a clamping nut;
the rotating part comprises an angular contact bearing and a balance turntable, an inner ring of the angular contact bearing is in interference fit with the upper end of the stand column shaft, and an outer ring of the angular contact bearing is connected to the balance turntable.
The purpose of the utility model and the technical problem thereof can be further realized by adopting the following technical measures.
Optionally, the rotating portion further includes a pressure plate, an annular concave table is disposed on an upper end side of the column shaft, an inner ring of the angular contact bearing is in interference fit with the annular concave table, and the pressure plate is detachably connected to the upper end of the column shaft and used for enabling an edge of the pressure plate to abut against the upper end of the inner ring of the angular contact bearing.
Optionally, the rotating part further comprises a bearing seat hole body and a bearing pressing ring, the bearing seat hole body is tensioned on the shaft side of the angular contact bearing, the balance turntable is connected to the upper end of the bearing seat hole body through a bolt, the inner edge of the bearing pressing ring is attached to the lower end of the angular contact bearing, and the outer edge of the bearing pressing ring is connected to the lower end of the bearing seat hole body through a bolt.
Optionally, the adjusting bottom plate is provided with a central groove, and the lower end of the upright shaft is embedded in the central groove.
Optionally, the stand column comprises a plurality of inner hexagonal bolts, a plurality of inner threaded blind holes are formed in the lower end of the stand column shaft, a plurality of fixing through holes are formed in the bottom wall of the central groove, and each inner hexagonal bolt penetrates through one of the fixing through holes and is in threaded connection with one of the inner threaded blind holes.
Optionally, a plurality of reserved mounting holes are uniformly distributed on the circumference of the balance turntable and used for mounting the three-jaw chuck.
Optionally, the foundation slab is fixed to the ground through anchor bolts.
Optionally, a plurality of pits are uniformly distributed on the circumference of the foundation slab, and the lower end of each adjusting jackscrew corresponds to one of the pits.
Borrow by above-mentioned technical scheme, the utility model discloses at least, have following advantage:
and fixing the magnetic seat of the dial indicator stand on the foundation slab.
Before detecting the assembly error of the stator cylinder and the front and rear end plates, the pointers of the two dial indicators are respectively abutted against the upper end face and the shaft side face of the balance turntable, so that the high-precision position of the balance turntable is realized (the flatness of the balance turntable is less than 0.015mm, and the concentricity after rotation is less than 0.025 mm).
The position accuracy of the balance turntable can be automatically measured at any time by utilizing the dial indicator fixed on the base bottom plate; if the precision exceeds the expected value, the adjusting jackscrew on the adjusting bottom plate can be used for adjusting, so that the position precision of the balance turntable meets the requirement.
After determining the deflection direction of the central shaft of the upright shaft, an operator adjusts the jackscrew by screwing in or screwing out the part, so that the aim of improving the vertical precision of the upright shaft is fulfilled.
When the operator considers that the vertical precision of the upright post shaft reaches the set standard, the abutting nut is rotated downwards along the adjusting screw rod so as to enable the abutting nut to be tightly attached to the adjusting bottom plate, and therefore the position relation among the upright post shaft, the adjusting bottom plate and the foundation bottom plate is stabilized, and the upright post shaft is enabled to keep the vertical precision.
After the work is finished, the stator cylinder is vertically placed at the center of the balance turntable, the upper end face of the stator cylinder and the surface of the balance turntable respectively abut against the pointer of the dial indicator, and the balance turntable is rotated to obtain the precision of the upper end face of the stator cylinder (in the same way, the precision of the end plate end face and the end plate seam allowance waiting side part can also be obtained).
And an operator determines whether the precision of the assembly part meets the requirement according to the reading of the dial indicator, and determines whether the spigot part or the end face of the end plate needs to be machined and repaired again until the assembly precision meets the requirement.
By using the device, an operator can ensure the assembly precision of the stator cylinder body and the front and rear end plates, and further ensure the assembly precision of the front and rear bearings (assembled on the front and rear end plates), thereby ensuring the support position precision of the rotor component and ensuring the quick maintenance process.
Drawings
Fig. 1 is an axial sectional view of a device for detecting assembly accuracy according to an embodiment of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is an enlarged view of portion B of FIG. 1;
fig. 4 is a schematic view of an operating state of the detection apparatus for assembly accuracy according to the embodiment of the present invention.
Reference numerals in the drawings of the specification include: the device comprises a foundation baseplate 1, an adjusting screw rod 2, an adjusting baseplate 3, an upright post shaft 4, an adjusting jackscrew 5, a jackscrew screw hole 6, an adjusting through hole 7, a clamping nut 8, an angular contact bearing 9, a balance turntable 10, a pressure plate 11, a bearing seat hole body 12, a bearing pressure ring 13, a central groove 14, an internal thread blind hole 15, a fixing through hole 16, a reserved mounting hole 17, an anchor bolt 18, a pit 19 and a stator barrel 20.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the intended purpose, the following detailed description is given to specific embodiments, structures, features and effects according to the present invention in conjunction with the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in fig. 1 and fig. 2, an embodiment of the present invention provides a device for detecting assembly accuracy, which includes: the base comprises a base bottom plate 1, an adjusting base and a rotating part;
a plurality of adjusting screws 2 are fixed on the circumference of the foundation bottom plate 1;
the adjusting base comprises an adjusting bottom plate 3, an upright post shaft 4 and a plurality of adjusting jackscrews 5, the adjusting bottom plate 3 is coaxially connected with the lower end of the upright post shaft 4, a plurality of jackscrew screw holes 6 and a plurality of adjusting through holes 7 are uniformly distributed on the circumference of the adjusting bottom plate 3, each adjusting jackscrew 5 is in threaded connection with one of the jackscrew holes 6, each adjusting through hole 7 corresponds to one of the adjusting screw rods 2, and the upper end of each adjusting screw rod 2 is in threaded connection with a clamping screw cap 8;
the rotating part includes an angular contact bearing 9 and a balance dial 10, an inner ring of the angular contact bearing 9 is in interference fit with an upper end of the column shaft 4, and an outer ring of the angular contact bearing 9 is connected to the balance dial 10.
The working process of the detection device for the assembly precision is as follows:
as shown in fig. 1 and 4, the magnetic base of the dial gauge holder 21 is fixed to the base plate 1.
Before detecting the assembly error of the stator cylinder 20 and the front and rear end plates, the pointers of the two dial indicators are respectively abutted against the upper end face and the shaft side face of the balance turntable 10, so as to realize the high-precision position of the balance turntable 10 (the flatness of the balance turntable 10 is less than 0.015mm, and the concentricity after rotation is less than 0.025 mm).
The position accuracy of the balance turntable 10 can be self-tested at any time by utilizing a dial indicator fixed on the foundation slab 1; if the precision exceeds the expected value, the adjusting jackscrew 5 on the adjusting bottom plate 3 can be used for adjusting, so that the position precision of the balance turntable 10 meets the requirement.
After determining the deviation direction of the central shaft of the upright post shaft 4, an operator adjusts the jackscrew 5 by screwing in or screwing out the part, so as to achieve the purpose of improving the vertical precision of the upright post shaft 4.
When the operator thinks that the vertical precision of the upright post shaft 4 reaches the set standard, the abutting nut 8 is rotated downwards along the adjusting screw rod 2, so that the abutting nut 8 is tightly attached to the adjusting bottom plate 3, thereby stabilizing the position relation of the upright post shaft 4, the adjusting bottom plate 3 and the foundation bottom plate 1, and keeping the upright post shaft 4 at the vertical precision.
After the above work is completed, the stator cylinder 20 is vertically placed at the center of the balance turntable 10, the upper end face of the stator cylinder 20 and the surface of the balance turntable 10 respectively abut against the pointer of the dial indicator, and the balance turntable 10 is rotated to obtain the precision of the upper end face of the stator cylinder 20 (similarly, the precision of the end plate end face and the waiting side part of the end plate spigot can also be obtained).
And an operator determines whether the precision of the assembly part meets the requirement according to the reading of the dial indicator, and determines whether the spigot part or the end face of the end plate needs to be machined and repaired again until the assembly precision meets the requirement.
The technical scheme of the utility model in, through using this device, operating personnel can guarantee stator barrel 20 and preceding, the assembly precision of rear end plate, and then guarantee (assemble in the front, on the rear end plate) preceding, the assembly precision of rear bearing to guarantee the support position precision of rotor part, make the maintenance process swift.
Specifically, an operator determines whether the stator part of the canned motor pump after maintenance reaches the assembly precision or not at the first time by using the device; the cost for repeatedly taking off the shielding pump for maintenance is saved (the cost of spare parts is about 2-3.3 ten thousand yuan each time); the time for repeatedly taking off the shielding pump for maintenance is saved (the maintenance time is about 8 to 12 hours each time); the process shutdown and the material replacement process before the shielding pump is repeatedly off-line are avoided.
Specifically, the number of the angular contact bearings 9 is two, and the two angular contact bearings 9 are arranged back to back.
Specifically, the lower end of the adjusting screw 2 is welded to the base plate 1, and the upper end of the adjusting screw 2 penetrates through the adjusting through hole 7 and is in threaded connection with the abutting nut 8.
As shown in fig. 1, in a specific embodiment, the rotating portion further includes a pressure plate 11, an annular concave table is disposed on an upper end side of the column shaft 4, the inner ring of the angular contact bearing 9 is in interference fit with the annular concave table, and the pressure plate 11 is detachably connected to the upper end of the column shaft 4, and is used for enabling an edge of the pressure plate 11 to abut against the upper end of the inner ring of the angular contact bearing 9.
In the present embodiment, specifically, the pressure plate 11 is connected to the upper end of the column shaft 4 by a bolt, and the edge of the pressure plate 11 abuts against the upper end of the inner ring of the angular contact bearing 9, so as to further prevent the inner ring of the angular contact bearing 9 from separating from the column shaft 4.
Specifically, the lower end of the inner ring of the angular contact bearing 9 abuts against the lower edge of the annular concave table.
As shown in fig. 1, in the specific embodiment, the rotating portion further includes a bearing seat hole 12 and a bearing press ring 13, the bearing seat hole 12 is tightened on the axial side of the angular contact bearing 9, the balance dial 10 is connected to the upper end of the bearing seat hole 12 by a bolt, the inner edge of the bearing press ring 13 is attached to the lower end of the angular contact bearing 9, and the outer edge of the bearing press ring 13 is connected to the lower end of the bearing seat hole 12 by a bolt.
In the present embodiment, specifically, the bearing seat hole 12 is tensioned on the shaft side of the outer ring of the angular contact bearing 9, the inner edge of the balance rotating disk 10 is lapped on the upper end of the outer ring of the angular contact bearing 9, and the balance rotating disk 10, the bearing seat hole 12 and the bearing press ring 13 are integrally connected by bolts, so as to ensure the relative stability of the balance rotating disk 10 and the outer ring of the angular contact bearing 9.
As shown in fig. 1 and 3, in a specific embodiment, the adjustment base plate 3 is provided with a central groove 14, and the lower end of the pillar shaft 4 is embedded in the central groove 14.
In this embodiment, specifically, the lower end of the column shaft 4 is embedded in the central groove 14, so as to prevent the column shaft 4 from deviating relative to the adjustment base plate 3, and ensure the coaxiality of the column shaft 4 and the adjustment base plate 3.
As shown in fig. 1 and 3, in a specific embodiment, the fastening device further comprises a plurality of internal hexagonal bolts, the lower end of the pillar shaft 4 is provided with a plurality of blind internally threaded holes 15, the bottom wall of the central groove 14 is provided with a plurality of fixing through holes 16, and each of the internal hexagonal bolts penetrates through one of the fixing through holes 16 and is screwed into one of the blind internally threaded holes 15.
In the present embodiment, specifically, the adjustment base plate 3 and the column shaft 4 are fixedly connected by an internal hexagonal bolt; simultaneously the inside profile of fixed through hole 16 coincide in the afterbody profile of interior hexagonal bolt, when interior hexagonal bolt fully precession internal thread blind hole 15, the afterbody of interior hexagonal bolt imbeds completely in fixed through hole 16, the afterbody of interior hexagonal bolt can not occupy the space between adjusting baseplate 3 and the soleplate 1, so operating personnel is when rotatory adjustment jackscrew 5, the afterbody of interior hexagonal bolt can not influence the size in clearance between adjusting baseplate 3 and the soleplate 1, thereby avoid the afterbody of interior hexagonal bolt to influence the adjustment of the levelness of adjusting baseplate 3, thereby avoid the afterbody of interior hexagonal bolt to influence the adjustment of the vertical precision of stand axle 4.
As shown in fig. 1, in a specific embodiment, a plurality of reserved mounting holes 17 are uniformly distributed on the circumference of the balance rotating disk 10 for mounting the three-jaw chuck.
In this embodiment, specifically, the bolt passes through the reserved mounting hole 17 and is screwed in the threaded hole of the lower end face of the three-jaw chuck, so that heavy components with different diameters can be fixed above the balance turntable 10 through the three-jaw chuck, and the assembly accuracy of the heavy components with different diameters can be detected conveniently.
In the embodiment, as shown in fig. 1, the foundation sole plate 1 is fixed to the ground by anchor bolts 18.
In the present embodiment, specifically, the foundation sole plate 1 is fixed to the ground by the anchor bolts 18, and when the vertical accuracy of the column shaft 4 is adjusted, the foundation sole plate 1 does not move relative to the ground, and a stable foundation is provided for the accuracy adjustment.
As shown in fig. 1, in a specific embodiment, a plurality of concave pits 19 are uniformly distributed on the circumference of the foundation slab 1, and a lower end of each adjusting jackscrew 5 corresponds to one of the concave pits 19.
In the present embodiment, specifically, the lower ends of the plurality of adjusting jackscrews 5 correspond to the plurality of recesses 19 one by one, so that the adjusting jackscrews 5 screwed out downward are prevented from moving horizontally relative to the foundation bedplate 1, thereby further improving the accuracy of the vertical precision adjustment of the column shaft 4.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. An assembly accuracy detection device, comprising:
the base plate is fixed with a plurality of adjusting screws on the circumference;
the adjusting base comprises an adjusting base plate and a stand column shaft, the adjusting base plate is coaxially connected with the lower end of the stand column shaft, a plurality of jackscrew holes and a plurality of adjusting through holes are uniformly distributed on the circumference of the adjusting base plate, each jackscrew hole is in threaded connection with one adjusting jackscrew, each adjusting through hole corresponds to one adjusting screw, and the upper end of each adjusting screw is in threaded connection with a abutting nut;
the rotating part comprises an angular contact bearing and a balance turntable, the inner ring of the angular contact bearing is in interference fit with the upper end of the stand column shaft, and the outer ring of the angular contact bearing is connected to the balance turntable.
2. The assembly accuracy detecting apparatus according to claim 1,
the rotating part further comprises a pressure plate, an annular concave table is arranged on the upper end side of the stand column shaft, the inner ring of the angular contact bearing is in interference fit with the annular concave table, and the pressure plate is detachably connected to the upper end of the stand column shaft and used for enabling the edge of the pressure plate to tightly abut against the upper end of the inner ring of the angular contact bearing.
3. The assembly accuracy detecting apparatus according to claim 1,
the rotating part further comprises a bearing seat hole body and a bearing pressing ring, the bearing seat hole body is tensioned on the shaft side of the angular contact bearing, the balance turntable is connected to the upper end of the bearing seat hole body through bolts, the inner edge of the bearing pressing ring is attached to the lower end of the angular contact bearing, and the outer edge of the bearing pressing ring is connected to the lower end of the bearing seat hole body through bolts.
4. The assembly accuracy detecting apparatus according to any one of claims 1 to 3,
the adjusting bottom plate is provided with a central groove, and the lower end of the upright post shaft is embedded in the central groove.
5. The assembly accuracy detecting apparatus according to claim 4,
the lower end of the upright post shaft is provided with a plurality of internal thread blind holes, the bottom wall of the central groove is provided with a plurality of fixing through holes, and each internal hexagonal bolt penetrates through one of the fixing through holes and is in threaded connection with one of the internal thread blind holes.
6. The assembly accuracy detecting apparatus according to any one of claims 1 to 3,
and a plurality of reserved mounting holes are uniformly distributed on the circumference of the balance turntable and used for mounting the three-jaw chuck.
7. The assembly accuracy detecting apparatus according to any one of claims 1 to 3,
the foundation slab is fixed on the ground through foundation bolts.
8. The assembly accuracy detecting apparatus according to any one of claims 1 to 3,
a plurality of pits are uniformly distributed on the circumference of the foundation slab, and the lower end of each adjusting jackscrew corresponds to one of the pits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220371105.8U CN217303828U (en) | 2022-02-23 | 2022-02-23 | Detection apparatus for assembly accuracy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220371105.8U CN217303828U (en) | 2022-02-23 | 2022-02-23 | Detection apparatus for assembly accuracy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217303828U true CN217303828U (en) | 2022-08-26 |
Family
ID=82928474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220371105.8U Active CN217303828U (en) | 2022-02-23 | 2022-02-23 | Detection apparatus for assembly accuracy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217303828U (en) |
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2022
- 2022-02-23 CN CN202220371105.8U patent/CN217303828U/en active Active
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