CN219124072U

CN219124072U - Generator stator assembly expansion type inner circle locking clamping device

Info

Publication number: CN219124072U
Application number: CN202223118110.7U
Authority: CN
Inventors: 方幼明
Original assignee: Shaanxi Aero Electric Co Ltd
Current assignee: Shaanxi Aero Electric Co Ltd
Priority date: 2022-11-23
Filing date: 2022-11-23
Publication date: 2023-06-02
Anticipated expiration: 2032-11-23

Abstract

The application belongs to the technical field of generator assembly, and particularly relates to an expansion type inner circle locking and clamping device for a generator stator assembly. The device comprises a screw rod (1), an upper base (2), connecting rod assemblies (4), expansion blocks (6) and a lower base (8), wherein the screw rod penetrates through a through hole of the upper base (2) and then is connected in a threaded hole of the lower base (8) in a threaded mode, at least two connecting rod assemblies (4) and the expansion blocks (6) are distributed on the periphery of the upper base (2) along the circumferential direction, each connecting rod assembly (4) is provided with a first rod (41) and a second rod (42), one end of each first rod (41) is hinged to the upper base (2), one end of each second rod (42) is hinged to the lower base (8), and the other ends of the first rods and the second rods are hinged to the corresponding expansion blocks (6) of the connecting rod assemblies. The stator assembly locking clamping device can be used manually and automatically, and can conveniently and rapidly lock and clamp stator assemblies with different inner diameters.

Description

Generator stator assembly expansion type inner circle locking clamping device

Technical Field

The application belongs to the technical field of generator assembly, and particularly relates to an expansion type inner circle locking and clamping device for a generator stator assembly.

Background

In the process of installing the stator assembly of the generator into the shell assembly, the stator assembly is clamped by the inner circle of the stator assembly and is placed into the shell assembly matched with the outer diameter of the stator assembly according to technical requirements. In the prior manual assembly process, an inner circle locking clamp handle is manufactured by utilizing the principle of left and right spiral expansion, and as shown in fig. 5, a stator assembly is lifted and installed in a shell assembly. The fixture has strong pertinence, and one set of fixture corresponds to a stator assembly with an inner diameter size; the fixture is relatively complicated to assemble and disassemble, is unfavorable for automatic (electric or pneumatic) operation, and has low efficiency.

Disclosure of Invention

In order to solve the above-mentioned problem, the application provides a locking clamping device is locked to interior circle of generator stator module inflation, can utilize this device to regard as the centre gripping instrument with it, utilizes the downthehole surface of cylinder of work piece to snatch the work piece, then transport or fix, also can utilize this device to fix the locking to make it not rotate, not slide to the work piece to carry out necessary processing or assembly to the work piece outside unobstructed.

The utility model provides a locking clamping device is in interior circle of generator stator module inflation mainly includes the screw rod, go up base, link assembly, expansion piece and lower base, go up the base center and have the through-hole, lower base center has the screw hole, the screw rod passes the through-hole back spiro union of going up the base in the screw hole of base down, the bolt head crimping of screw rod is in the upper end of base, a pedestal is close to down along the axial for promote, at least two link assembly and the expansion piece of corresponding quantity are distributed in the week side of base along circumference, every link assembly has first pole and second pole, the one end of first pole articulates on last base, the other end articulates on the expansion piece that corresponds with this link assembly, the one end of second pole articulates on lower base, the other end articulates on the expansion piece that corresponds with this link assembly equally, every expansion piece corresponds and connects a piece boots, the piece boots have the adaptation and paste the surface on stator module cylinder hole internal surface.

Preferably, there is a compressed spring between the upper and lower bases.

Preferably, the upper base and the lower base are respectively provided with a plurality of lugs which are the same as the connecting rod assemblies in number, the lugs are uniformly distributed on the periphery of the upper base or the lower base along the circumferential direction, each lug is of a double-lug structure, a gap is formed between two lugs, and one end of each connecting rod assembly extends into the gap and is connected with the lug through a cylindrical pin.

Preferably, the number of the connecting rod assemblies is 4, and the included angle between the adjacent connecting rod assemblies along the circumferential direction of the upper base is 90 degrees.

Preferably, the number of the connecting rod assemblies is 3, and the included angle between the adjacent connecting rod assemblies along the circumferential direction of the upper base is 120 degrees.

Preferably, the expansion block is connected with the boot by a screw, and the screw is threaded with the expansion block after passing through the unthreaded hole of the boot.

Preferably, the bolt head of the screw is provided with a square inner hole and is used for being connected with a rotating shaft of a driving motor in an adapting mode, and the driving motor drives the screw to rotate.

Preferably, the upper base is further provided with a threaded hole for connecting the housing of the driving motor through an adapted bolt.

The stator assembly locking clamping device can be used manually and automatically, and can conveniently and rapidly lock and clamp stator assemblies with different inner diameters.

Drawings

FIG. 1 is a schematic structural view of a preferred embodiment of an inflatable inner circle locking clamp device for a generator stator assembly of the present application.

FIG. 2 is a cross-sectional view A-A of the embodiment of FIG. 1 of the present application.

Fig. 3 is a schematic illustration of a clamping application of a preferred embodiment of the apparatus of the embodiment of fig. 1 of the present application.

Fig. 4 is a schematic illustration of a locking application of a preferred embodiment of the device of the embodiment of fig. 1 of the present application.

Fig. 5 is a schematic view of a conventional inner circle locking clamp handle.

The device comprises a 1-screw, a 2-upper base, a 21-lug, a 3-cylindrical pin, a 4-connecting rod assembly, a 41-first rod, a 42-second rod, a 5-screw, a 6-expansion block, a 7-shoe, an 8-lower base, a 9-spring, a 10-rotating shaft, an 11-workpiece and a 12-working platform.

Detailed Description

For the purposes, technical solutions and advantages of the present application, the following describes the technical solutions in the embodiments of the present application in more detail with reference to the drawings in the embodiments of the present application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, of the embodiments of the present application. The embodiments described below by referring to the drawings are exemplary and intended for the purpose of explaining the present application and are not to be construed as limiting the present application. All other embodiments, based on the embodiments herein, which would be apparent to one of ordinary skill in the art without undue burden are within the scope of the present application. Embodiments of the present application will be described in detail below with reference to the accompanying drawings.

The application provides a locking clamping device in interior circle of generator stator module inflation, as shown in fig. 1-4, mainly include screw rod 1, go up base 2, connecting rod assembly 4, expansion piece 6 and lower base 8, go up the base 2 center and have the through-hole, lower base 8 center has the screw hole, screw rod 1 passes the through-hole of going up base 2 back spiro union in the screw hole of lower base 8, screw rod 1's bolt head crimping is in the upper end at last base 2, be used for promoting to go up base 2 along the axial and be close to lower base 8, at least two connecting rod assembly 4 and corresponding quantity expansion piece 6 distribute along circumference at the week side of last base 2, every connecting rod assembly 4 has first pole 41 and second pole 42, the one end of first pole 41 articulates on last base 2, the other end articulates on the expansion piece 6 that corresponds with this connecting rod assembly, the one end of second pole 42 articulates on lower base 8, the other end articulates on the expansion piece 6 that corresponds with this connecting rod assembly, every expansion piece 6 corresponds and connects a piece boots 7, piece 7 has the surface that the adaptation is closely on stator module cylinder hole internal surface.

Referring to fig. 1, as the depth of the screw-in threaded hole of the control screw increases, the distance between the upper base 2 and the lower base 8 becomes smaller gradually, and the upper and lower bases move with one ends of the link assemblies, so that the included angle α between the first rod and the second rod of each link assembly becomes smaller gradually, and simultaneously, the expansion blocks connecting the first rod and the second rod move outwards along the direction perpendicular to the axis of the screw, so that the outer circle formed by connecting the outer arc surfaces of the expansion blocks becomes larger gradually, thereby realizing the purpose of expanding the outer part thereof to lock the inner circle surface of the workpiece 11.

In some alternative embodiments, there is a compressed spring 9 between the upper base 2 and the lower base 8. When the control screw rod is gradually unscrewed, the distance between the upper base and the lower base is gradually increased by the spring, so that the included angle alpha between the first rod and the second rod of the connecting rod assembly is also gradually increased, the expansion block is further moved inwards along the vertical direction with the axis of the screw rod, and the excircle formed by connecting the extrados of the expansion block is gradually reduced.

In some alternative embodiments, the upper base 2 and the lower base 8 each have a plurality of lugs 21 with the same number as the connecting rod assemblies 4, the lugs 21 are circumferentially and uniformly distributed on the circumferential side of the upper base 2 or the lower base 8, each lug has a binaural structure, a gap is formed between two ears, and one end of each connecting rod assembly 4 extends into the gap and is connected with the lug 21 through the cylindrical pin 3.

As shown in fig. 2, two ends of the first rod and the second rod of the link assembly 4 are both provided with a single ear structure with pin holes, and corresponding ears are provided on the upper base 2, the lower base 8 and the expansion block 6, and the link assembly 4 is hinged between the upper base 2 (the lower base 8) and the expansion block 6 through single-double-ear cooperation.

In some alternative embodiments, the number of the connecting rod assemblies 4 is 4, and the included angle between the adjacent connecting rod assemblies 4 along the circumferential direction of the upper base 2 is 90 °. Fig. 2 shows an example of 4 link assemblies 4, in an alternative embodiment, the number of the link assemblies 4 is 3, and the circumferential included angle between the adjacent link assemblies 4 along the upper base 2 is 120 °. In other embodiments, the number of the link assemblies 4 may be 2, 5 or more, and when the number of the link assemblies 4 is 2, two link assemblies are symmetrically distributed on both sides of the upper base 2 or the lower base 8.

In some alternative embodiments, the expansion block 6 is connected to the boot 7 by a screw 5, and the screw 5 is threaded through the aperture of the boot 7 to the expansion block 6.

In this embodiment, the shoe 7 is a part designed to accommodate workpieces of different inner diameters and to increase the contact area with the inner cylindrical surface as much as possible, and the material of the shoe and its outer surface shape and size are adapted to the inner cylindrical surface of the specific workpiece; the screw 5 and the shoe 7 are matched with the expansion block 6 to form a specific expansion block assembly.

In some alternative embodiments, the bolt head of the screw 1 has a square inner hole for adapting to a spindle 10 connected to a driving motor, through which the screw 1 is driven to rotate.

Referring to fig. 3, the screw 1 may be driven to rotate by the motor shaft 10, thereby driving the expansion block to be abutted against the inner cylindrical surface of the workpiece, gripping the workpiece by the inner cylindrical hole surface of the workpiece, and then transferring or fixing the workpiece. In some alternative embodiments, the upper base 2 is further provided with threaded holes for connecting the housing of the drive motor by means of adapted bolts.

The utility model provides a locking clamping device is locked in interior circle of generator stator module inflation formula except the centre gripping transports the work piece, still has the purpose of locking fixed work piece, and reference fig. 4 is provided with the screw hole on the lower base 8, fixes it on work platform 12 through the bolt, then rotatory screw rod 1, with the tight cylindrical hole of stator module of inflation piece subassembly top, realizes the fastening to stator module.

While the application has been described in detail with respect to the general description and the specific embodiments thereof, it will be apparent to those skilled in the art that certain modifications and improvements can be made thereto based upon the application. Accordingly, such modifications or improvements may be made without departing from the spirit of the application and are intended to be within the scope of the utility model as claimed.

Claims

1. The utility model provides a locking clamping device is interior circular locking of generator stator module, a serial communication port, including screw rod (1), go up base (2), connecting rod assembly (4), expansion piece (6) and lower base (8), go up base (2) center and have the through-hole, lower base (8) center has the screw hole, screw rod (1) pass behind the through-hole of last base (2) spiro union in the screw hole of lower base (8), the bolt head crimping of screw rod (1) is in the upper end of last base (2), be used for promoting to go up base (2) and be close to lower base (8) along the axial, at least two connecting rod assembly (4) and expansion piece (6) of corresponding quantity distribute in the week side of last base (2) along circumference, every connecting rod assembly (4) have first pole (41) and second pole (42), the one end of first pole (41) articulates on last base (2), the other end articulates on expansion piece (6) that correspond with this connecting rod assembly, the one end of second pole (42) articulates on lower base (8), the other end is same on expansion piece (6) that correspond with this connecting rod assembly, each expansion piece (6) corresponds on the surface of a pair of expansion piece (7) has fitting on the surface of stator (7) on the surface.

2. Generator stator assembly expansion inner circle locking clamping device according to claim 1, characterized in that between the upper base (2) and the lower base (8) there is a compressed spring (9).

3. The generator stator assembly expansion type inner circle locking and clamping device according to claim 1, wherein the upper base (2) and the lower base (8) are respectively provided with a plurality of lugs (21) which are the same as the connecting rod assemblies (4), the lugs (21) are circumferentially uniformly distributed on the periphery side of the upper base (2) or the lower base (8), each lug is of a double-lug structure, a gap is formed between two lugs, and one end of each connecting rod assembly (4) extends into the gap and is connected with the lug (21) through a cylindrical pin (3).

4. A generator stator assembly expansion inner circle locking clamping device as claimed in claim 3, wherein the number of the connecting rod assemblies (4) is 4, and the circumferential included angle between the adjacent connecting rod assemblies (4) along the upper base (2) is 90 °.

5. A generator stator assembly expansion inner circle locking clamping device as claimed in claim 3, wherein the number of the connecting rod assemblies (4) is 3, and the circumferential included angle between the adjacent connecting rod assemblies (4) along the upper base (2) is 120 °.

6. Generator stator assembly expansion inner circle locking clamping device according to claim 1, characterized in that the expansion block (6) is connected with the shoe (7) by means of a screw (5), the screw (5) being threaded with the expansion block (6) after passing through the aperture of the shoe (7).

7. Generator stator assembly expansion inner circle locking clamping device according to claim 1, characterized in that the screw head of the screw (1) has a square inner hole for adapting a spindle (10) connected to a drive motor by means of which the screw (1) is driven to rotate.

8. Generator stator assembly expansion inner circle locking clamping device according to claim 7, characterized in that the upper base (2) is also provided with threaded holes for connecting the housing of the drive motor by means of adapted bolts.