CN217210702U

CN217210702U - Stator verticality detection tool suitable for refrigeration compressor

Info

Publication number: CN217210702U
Application number: CN202221197290.XU
Authority: CN
Inventors: 陈奕文
Original assignee: Regal Beloit Suzhou Co Ltd
Current assignee: Regal Beloit Suzhou Co Ltd
Priority date: 2022-05-17
Filing date: 2022-05-17
Publication date: 2022-08-16
Anticipated expiration: 2032-05-17

Abstract

The utility model discloses a stator verticality detection tool suitable for a refrigeration compressor, which comprises a base, a conical mandrel, a gasket, a mandrel, a central shaft and a connecting piece, wherein the central shaft is vertically fixed on the base, the conical mandrel is sleeved on the central shaft and is concentric with the central shaft, and the conical mandrel is used for guiding the stator; the gasket is arranged on the base, is concentric with the central shaft and is used for supporting the stator; the stator is fixed with the washer through a connecting piece, and the core shaft is sleeved on the central shaft and is rotationally connected with the central shaft through a bearing. The utility model discloses simple structure, it is suitable for the convenience, adopt multicomponent assembly structure, can select not unidimensional awl mandrel, packing ring, dabber according to the structure of different stators, increased the scope that detects, and then reduce the frock cost. The top of the mandrel is provided with the guide head, so that the stator is convenient to install, and meanwhile, the guide head is convenient for workers to hold. The arrangement of the conical mandrel realizes the correction of the stator so as to ensure the concentricity of the stator and the central shaft.

Description

Stator verticality detection tool suitable for refrigeration compressor

Technical Field

The utility model relates to a stator straightness that hangs down detects frock suitable for refrigeration compressor machine.

Background

At the high efficiency, under energy saving and emission reduction's the environment, in order to improve the efficiency of motor, the clearance design between stator hole and the rotor excircle is more and more littleer, if the stator is because the atress produces the deformation when the installation, the stator hole produces great straightness that hangs down with the installation reference surface, very easily cause because the air gap is uneven between the stator and the rotor, the compressor produces the phenomenon of abnormal sound at the operation in-process, even can produce the phenomenon that the stator and the rotor rubbed iron, but in the motor production process, only can measure the straightness that hangs down of stator free state hole and terminal surface, can't guarantee that the stator does not have great deformation after installing on the compressor base, consequently, need to design a stator straightness that hangs down detection frock that is applicable to refrigeration compressor machine urgently.

SUMMERY OF THE UTILITY MODEL

In view of the defects existing in the prior art, the main object of the utility model is to overcome the defects in the prior art, and to disclose a stator verticality detection tool suitable for a refrigeration compressor, which comprises a base, a conical mandrel, a gasket, a mandrel, a central shaft and a connecting piece, wherein the central shaft is vertically fixed on the base, the conical mandrel is sleeved on the central shaft and is concentric with the central shaft, and the conical mandrel is used for guiding the stator; the gasket is arranged on the base, is concentric with the central shaft and is used for supporting the stator; the stator is fixed with the washer through a connecting piece, and the core shaft is sleeved on the central shaft and is rotationally connected with the central shaft through a bearing.

Furthermore, the upper end of the conical mandrel is in a shape of a truncated cone, and the lower end of the conical mandrel is in a shape of a cylinder.

Furthermore, the base is provided with at least three mounting holes which are circumferentially and concavely arranged by taking the central shaft as a circle center, springs are arranged in the mounting holes, the upper ends of the springs act on the conical mandrel, and the base is connected with the conical mandrel through bolts.

Further, the upper end of the mandrel is provided with a guide head, and the guide head is in a cone frustum shape.

Furthermore, a countersunk hole is formed in the guide head and is fixed with the mandrel through a hexagon socket head cap screw.

Further, the connecting piece is a long screw rod.

Furthermore, two grooves are concavely arranged on the upper surface of the gasket.

Further, the lower surface of base sets up at least three second screw along its circumference, set up rather than complex adjusting bolt in the second screw.

Further, the bearing is a deep groove ball bearing.

The utility model discloses the beneficial effect who gains:

the utility model discloses simple structure, it is suitable for the convenience, adopt multicomponent assembly structure, can select not unidimensional awl mandrel, packing ring, dabber according to the structure of different stators, increased the scope that detects, and then reduce the frock cost. The top of the mandrel is provided with the guide head, so that the stator is convenient to install, and meanwhile, the guide head is convenient for workers to hold. The arrangement of the conical mandrel realizes the guiding of the stator so as to ensure that the stator is concentric with the central shaft.

Drawings

Fig. 1 is a schematic structural view of a stator verticality detection tool for a refrigeration compressor according to the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a top view of the base;

FIG. 5 is a cross-sectional view B-B of FIG. 4;

FIG. 6 is a pictorial view of the gasket;

FIG. 7 is a cross-sectional view taken at C-C of FIG. 6;

FIG. 8 is a schematic view of the construction of the conical mandrel;

the reference numbers are as follows:

1. the base, 2, the awl dabber, 3, the packing ring, 4, the dabber, 5, the center pin, 6, connecting piece, 7, spring, 8, guide head, 9, adjusting bolt, 11, gasket, 12, mounting hole, 14, second screw, 31, recess, 32, first screw, 41, bearing, 81, counter bore.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

A stator verticality detection tool suitable for a refrigeration compressor is shown in figures 1-8 and comprises a base 1, a conical center shaft 2, a gasket 3, a core shaft 4, a center shaft 5 and a connecting piece 6, wherein the center shaft 5 is vertically fixed on the base 1, the conical center shaft 2 is sleeved on the center shaft 5 and is concentric with the center shaft 5, and the conical center shaft 2 is used for guiding the stator; the gasket 3 is arranged on the base 1, is concentric with the central shaft 5, and supports the stator by the gasket 3; the stator is fixed with the gasket 3 through a connecting piece 6, and the mandrel 4 is sleeved on the central shaft 5 and is rotatably connected with the central shaft 5 through a bearing 41. Specifically, a fixing hole is formed in the center of the base 1, a fixing shaft matched with the fixing hole is arranged at the lower end of the central shaft 5, a gasket 11 is arranged on the lower surface of the base 1, and the gasket 11 is connected with the fixing shaft through screws; wherein, the outer diameter of the gasket 11 is larger than the inner diameter of the fixing hole; thereby realizing the reliable connection of the central shaft 5 and the base 1.

In one embodiment, as shown in fig. 1-8, the upper end of the cone mandrel 2 is in the shape of a truncated cone, and the lower end thereof is in the shape of a cylinder; the stator is guided by the upper end of the conical mandrel 2 to ensure that the stator is concentric with the central shaft 5 after installation. Wherein, the lower extreme of awl dabber 2 cooperatees with the hole of stator.

In one embodiment, as shown in fig. 1-8, at least three mounting holes 12 are provided on the base 1 with the axis of the central shaft 5 as the center of the circle, springs 7 are provided in the mounting holes 12, the upper ends of the springs 7 act on the conical core shaft 2, and the lower end of the conical core shaft 2 is connected with the base 1 in a floating manner through bolts. When the detection tool is in a normal state, the conical core shaft 2 is pushed upwards by the spring 7, and the conical core shaft 2 is in a high position; when the stator is installed, the stator firstly touches the conical mandrel 2 and then is supported on the gasket 3, and in the process, the spring 7 is used for buffering the stator so as to prevent the stator from hard collision with the conical mandrel 2 and damage to the end face of the stator.

In one embodiment, as shown in fig. 1-8, the mandrel 4 is provided at its upper end with a guide head 8, the guide head 8 having a truncated cone shape. The mandrel 4 is used to simulate a rotor, so that the rotor is sized to fit the stator; thus, by the arrangement of the guide head 8, the stator is conveniently sleeved in the mandrel 4. In addition, because the guide head 8 is in a cone frustum-shaped structure, the diameter of the upper end of the guide head is larger than that of the lower end of the guide head, and therefore after the stator is installed, a large gap is formed between the upper end of the guide head 8 and an inner hole of the stator, and the gap can be conveniently held by a worker.

In the above embodiment, as shown in fig. 1 to 8, the guide head 8 is provided with a counter bore 81 and is fixed to the spindle 4 by a hexagon socket head cap screw. The countersunk hole 81 hides the hexagon socket head cap screw, and the countersunk hole 81 can also be used as a holding point for a worker, so that the worker can drive the mandrel 4 to rotate conveniently.

In one embodiment, as shown in fig. 1-8, the connector 6 is a long screw. The washer 3 is provided with first screw holes 32 at intervals, and the long screw penetrates through a through hole of the stator to be connected with the first screw holes 32, so that the stator is fixed on the washer 3.

In one embodiment, as shown in fig. 1-8, the upper surface of the gasket 3 is recessed with two grooves 31. This recess 31 provides a receiving area for a worker's hand to prevent the hand from being pinched between the washer 3 and the stator after the stator is mounted; in addition, the stator is convenient to disassemble.

In one embodiment, as shown in fig. 1-8, at least three second screw holes 14 are provided on the lower surface of the base 1 along the circumferential direction thereof, and the adjusting bolts 9 are disposed in the second screw holes 14. The level of the base 1 can be adjusted by controlling the extension of the adjusting bolt 9. In the present embodiment, 4 adjusting bolts 9 are provided.

In the assembly of the utility model, as shown in fig. 1-8, the adjusting bolt 9 is installed on the lower surface of the base 1, the gasket 3 is fixed with the base 1 through the bolt, the spring 7 is placed in the installation hole 12, the conical mandrel 2 is installed on the spring 7, the bolt passes through the installation hole 12 and the spring 7 to be connected with the gasket 3, so as to realize the floating connection between the gasket 3 and the base 1; the central shaft 5 is inserted into the inner hole of the conical mandrel 2, and the fixed shaft is inserted into the fixed hole and fixed through the gasket 11 and the bolt. Two bearings 41 are arranged up and down in the inner hole of the mandrel 4, and are rotatably connected with the central shaft 5 through the bearings 41. Wherein, the bearing 41 adopts a deep groove ball bearing. Finally, the guide head 8 is mounted on the spindle 4 by means of a hexagon socket screw.

During the use, install the stator on packing ring 3, dabber 4 is in the inner hole of stator, through 4 simulation rotors of dabber, whether staff rotates 4 feelings dabber 4 and stator inner holes and has the friction. If the friction exists, the stator is unqualified.

The above are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention; the scope of the appended claims should be accorded the broadest interpretation so as to encompass all such modifications and equivalent arrangements as is within the spirit and scope of the present invention.

Claims

1. The stator verticality detection tool suitable for the refrigeration compressor is characterized by comprising a base, a conical mandrel, a gasket, a mandrel, a central shaft and a connecting piece, wherein the central shaft is vertically fixed on the base; the gasket is arranged on the base, is concentric with the central shaft and is used for supporting the stator; the stator is fixed with the washer through a connecting piece, and the core shaft is sleeved on the central shaft and is rotationally connected with the central shaft through a bearing.

2. The stator verticality detection tool for a refrigeration compressor according to claim 1, wherein the upper end of the conical mandrel is in a shape of a truncated cone, and the lower end of the conical mandrel is in a shape of a cylinder.

3. The stator verticality detection tool suitable for a refrigeration compressor as claimed in claim 1, wherein the base is provided with at least three mounting holes circumferentially recessed around a central shaft, springs are disposed in the mounting holes, upper ends of the springs act on the conical mandrel, and the base and the conical mandrel are connected through bolts.

4. The stator verticality detection tool suitable for the refrigeration compressor as claimed in claim 1, wherein a guiding head is arranged at the upper end of the mandrel, and the guiding head is in a shape of a truncated cone.

5. The stator verticality detection tool suitable for the refrigeration compressor as claimed in claim 4, wherein the guide head is provided with a countersunk hole and is fixed with the mandrel through a hexagon socket head cap screw.

6. The stator verticality detection tool suitable for the refrigeration compressor as claimed in claim 1, wherein the connecting piece is a long screw.

7. The stator verticality detection tool suitable for the refrigeration compressor as claimed in claim 1, wherein two grooves are recessed in the upper surface of the gasket.

8. The stator verticality detection tool for the refrigeration compressor of claim 1, wherein at least three second screw holes are formed in the lower surface of the base along the circumferential direction of the base, and adjusting bolts matched with the second screw holes are arranged in the second screw holes.

9. The stator verticality detection tool for a refrigeration compressor according to claim 1, wherein the bearing is a deep groove ball bearing.