A stator core shell inserting tool

Abstract

The utility model discloses a stator core shell inserting tool, comprising n screw rods, a telescopic device and a lifting bolt; the n screw rods are vertically arranged and evenly arranged along the circumference of the top of the stator core, and are all parallel to the central axis of the stator core, one end of the n screw rods is connected to the top of the stator core, wherein n is a positive integer greater than or equal to 3; the telescopic device is connected to the top of the n screw rods, and the telescopic device comprises n mutually connected telescopic components, each of which is horizontally arranged, and both ends of the telescopic component are provided with vertical through holes, and the telescopic components are connected to two adjacent screw rods through the through holes, and the adjacent telescopic components are connected end to end and movably connected; the lifting bolt is connected to the top of the n screw rods and is located above the telescopic device. The utility model can adjust the telescopic component according to the distance between adjacent screw rods on the stator core, so that it can adapt to stator cores of different diameters, thereby smoothly placing the stator into a machine base, without the need to replace the tooling, thereby improving production efficiency.

Description

Technical Field

[0001] The utility model relates to the field of stator hoisting, in particular to a stator iron core shell inserting tool. Background Art

[0002] The existing stator core shell inserting tooling is to insert one end of the stator core into the tooling, hold the bottom of the stator with the tooling, and slowly put the stator into the machine base. Since the stator core is handmade, there is an error between the actual diameter and the theoretical size. Therefore, when the stator core is inserted into the tooling, the stator core size may be too large to be inserted, which affects production efficiency.

[0003] The patent with publication number CN117446641A discloses a stator hoisting device and method for a power plant generator, which is used to hoist the stator to an installation pit, including an adjustment component and a clamping component. The adjustment component includes a hoisting frame, a push plate and a connecting plate. The connecting plate is rotatably arranged on the hoisting frame, and two push plates are symmetrically and slidably arranged at both ends of the hoisting frame. The push plates and the connecting plates are movably connected by connecting rods. The clamping component includes a clamping frame, which is fixedly connected to the connecting plate. A plurality of clamping hydraulic cylinders are arranged on both sides of the clamping frame. The stator is arranged below the clamping frame through a lifting rope, and two cameras are symmetrically arranged on one side of the lower end of the clamping frame. Targets are arranged around the installation pit. In the device, the clamping frame is driven to rotate by the movement of the push plate to realize the rotation of the stator. The clamping hydraulic cylinder on the clamping frame clamps the stator to prevent the stator from shaking. The camera and target used in combination can extract the edge contour features of the installation pit, thereby improving the hoisting efficiency of the stator. The patent with publication number CN117262989A discloses a generator stator hoisting device, including a mounting tube, a mounting rod and abutment device; the mounting rod is slidably connected to the mounting tube; the end faces of the mounting rods close to each other are provided with two abutment devices; the abutment device includes a support plate and a pressing assembly, the inner cavity of the support plate is provided with a first vertical rod, a first cross rod, a first telescopic rod, and a second vertical rod, the pressing assembly includes a second rotating shaft, a connecting rod and a pressing plate, the first vertical rod abuts against the stator and slides along the support plate, the first cross rod rotates along the first vertical rod, the first cross rod and the first telescopic rod are colinear and fixedly connected, the first cross rod is rotatably connected to the support plate, the first telescopic rod is rotatably connected to the second vertical rod, the connecting rod is rotatably connected to the second vertical rod, and the connecting rod is rotatably connected to the support plate through the second rotating shaft, the pressing plate is located above the first vertical rod and is rotatably connected to the connecting rod, so that the stator can be hoisted to reduce the shaking effect of the stator during the hoisting process.

[0004] The patents with publication numbers CN117446641A and CN117262989A both place the stator horizontally and grab the circumferential side wall of the stator when hoisting the stator, and both hoist the stator, and their purposes are different from those of the present application. The hoisting method of the stator core in the present application is to place the stator core vertically, grab the top of the stator core, and place the stator core into the machine base. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a stator core shell inserting tooling for the above-mentioned deficiencies in the prior art. The stator core shell inserting tooling can be adjusted accordingly according to the actual diameter of the stator core. Only one tooling is used to hoist stator cores of different diameters, thereby improving production efficiency.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A stator core shell inserting tool comprises n screw rods, a telescopic device and a lifting bolt; the n screw rods are vertically arranged and evenly arranged along the circumference of the top of the stator core, and are all parallel to the central axis of the stator core, and one end of the n screw rods is connected to the top of the stator core, wherein n is a positive integer greater than or equal to 3; the telescopic device is connected to the top of the n screw rods, and the telescopic device comprises n interconnected telescopic components, each of which is horizontally arranged, and both ends of the telescopic component are provided with vertical through holes, and the telescopic components are connected to two adjacent screw rods through the through holes, and the adjacent telescopic components are movably connected end to end; the lifting bolt is connected to the top of the n screw rods and is located above the telescopic device.

[0008] Preferably, each telescopic assembly includes a telescopic rod, a fixed rod and an adjusting bolt; the telescopic rod is slidably connected to the fixed rod, and a hole is provided on the side wall of the telescopic rod at one end close to the fixed rod; the end of the fixed rod that is laterally connected to the telescopic rod is hollow inside and has an opening, and a waist-shaped hole is provided on the side wall of the fixed rod; the adjusting bolt is located in the hole of the telescopic rod and is connected to the telescopic rod through the waist-shaped hole on the side wall of the fixed rod.

[0009] Preferably, the bottom of the screw rod has a thread, the top of the stator core is provided with a threaded hole, and the screw rod and the stator core are connected by a threaded connection.

[0010] Preferably, nuts are provided at the connection between the telescopic device and the screw rod. The nuts are located at the bottom and the top of the telescopic device and are in close contact with the telescopic device.

[0011] Preferably, n is equal to 4, and the telescopic device includes four interconnected telescopic components in a square shape.

[0012] Preferably, n is equal to 3, and the telescopic device includes three interconnected telescopic components in the shape of a regular triangle.

[0013] Preferably, the lifting bolt has a closing portion.

[0014] Preferably, the telescopic rod is longer than the fixed rod.

[0015] The utility model has the following beneficial effects: due to the provision of the telescopic device, for stator cores with an actual diameter having an error with the theoretical size, the telescopic assembly is adjusted according to the distance between adjacent screws on the stator core, so that it can adapt to stator cores with different diameters, thereby smoothly placing the stator into the machine base without the need to replace the tooling, thereby improving production efficiency. Since the telescopic device can be telescopic, the structure is compact and easy to store. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is a structural schematic diagram of a stator core shell inserting tooling.

[0017] Figure 2 It is an enlarged structural diagram of the telescopic device of the utility model.

[0018] They include: 1. stator core; 2. screw rod; 3. telescopic rod; 4. fixing rod; 5. adjusting bolt; 6. nut; 7. lifting bolt. DETAILED DESCRIPTION

[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific preferred embodiments.

[0020] In the description of the present invention, it is necessary to understand that the orientations or positional relationships indicated by the terms "top", "bottom", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0021] like Figure 1 to Figure 2 As shown, the stator core 1 is a generator stator core 1 or a motor stator core 1, and its shell insertion tooling includes n screws 2, a telescopic device and a lifting bolt 7; the n screws 2 are vertically arranged and evenly distributed along the circumference of the top of the stator core 1, and are all parallel to the central axis of the stator core 1, and one end of the n screws 2 is connected to the top of the stator core 1, wherein n is a positive integer greater than or equal to 3; preferably, the bottom of the screw 2 has a thread, and the top of the stator core 1 is provided with a threaded hole, and the screw 2 is connected to the stator core 1 by a threaded connection.

[0022] The telescopic device is connected to the top of the n screw rods 2. The telescopic device includes n interconnected telescopic components. Each telescopic component is arranged horizontally. Both ends of the telescopic component are provided with vertical through holes. The telescopic components are connected to two adjacent screw rods 2 through the through holes. The adjacent telescopic components are connected end to end and movably connected, so that the entire telescopic device forms a whole, supporting and stabilizing the top of the n screw rods 2. Nuts 6 are provided at the connection between the telescopic device and the screw rods 2. The nuts 6 are located at the bottom and top of the telescopic device and are in close contact with the telescopic device. The size of the entire telescopic device can be adjusted by adjusting the horizontal length of each telescopic component, so that the telescopic device can adapt to different distances between two adjacent screw rods 2.

[0023] Each telescopic assembly includes a telescopic rod 3, a fixed rod 4 and an adjusting bolt 5; the telescopic rod 3 is slidably connected to the fixed rod 4, and a hole is provided on the side wall of the end of the telescopic rod 3 close to the fixed rod 4, and the hole may be a through hole or not, and the side wall refers to the four sides of the telescopic rod that are slidably connected to the fixed rod and in contact with the fixed rod. If the telescopic rod is not a cube but a cylinder, the side wall refers to a curved surface; the end of the fixed rod 4 that is laterally connected to the telescopic rod 3 is hollow inside and has an opening, and a waist-shaped hole is provided on the side wall of the fixed rod 4. When the telescopic rod 3 is extended and retracted in the fixed rod 4, the hole on the telescopic rod 3 is always located in the waist-shaped hole of the fixed rod 3; the adjusting bolt 5 is located in the hole of the telescopic rod 3, and is connected to the telescopic rod 3 through the waist-shaped hole on the side wall of the fixed rod 4. Preferably, the telescopic rod 3 is longer than the fixed rod 4, so the length of the telescopic assembly is greater than the length of the fixed rod 4, and less than the sum of the lengths of the telescopic rod 3 and the fixed rod 4.

[0024] In one embodiment, the hole opened on the side wall of the telescopic rod 3 is a through hole, and waist-shaped holes are opened on both side walls of the fixed rod 4. A through hole is opened horizontally at one end of the telescopic rod 3 extending into the fixed rod 4, and the adjusting bolt 5 extends into the through hole from the waist-shaped hole. The length of the telescopic assembly can be fixed by tightening the nuts of the adjusting bolts 5 on both sides of the waist-shaped hole.

[0025] In another embodiment, the hole on the side wall of the telescopic rod 3 is not a through hole, and a waist-shaped hole is opened on one side wall of the fixing rod 4. The adjusting bolt 5 is inserted into the waist-shaped hole and screwed into the hole of the telescopic rod 3 to press against the telescopic rod 3 to fix the length of the telescopic assembly.

[0026] In addition to being fixed by the adjusting bolt 5, the telescopic assembly can also be fixed by driving an air cylinder or a hydraulic cylinder to achieve the purpose of freely adjusting the length.

[0027] The lifting bolt 7 is connected to the top of the n screw rods 2 and is located above the telescopic device; the lifting bolt 7 has a closing portion. A lifting bolt 7 is fixedly screwed on the top of each screw rod 2, and the lifting bolt 7 facilitates the insertion of a lifting rope for lifting operations.

[0028] In the example of the attached figure, n is equal to 4, and the telescopic device includes four interconnected telescopic components in a square shape. In addition, the shape of the telescopic component can also be an isosceles trapezoid. n can also be set to 3, and the telescopic device includes three interconnected telescopic components in an equilateral triangle shape. In addition, n can also be equal to 5, 6, etc., and the number of threaded holes to be opened and the number of screws 2 to be connected are selected according to the actual diameter of the stator core 1.

[0029] The working principle of this stator core shell tooling is as follows:

[0030] The first step is to install the screw rods 2: screw n screw rods 2 into the threaded holes opened around the top of the stator core 1.

[0031] The second step is to install the telescopic device: first, screw the nuts 6 into the n screw rods 2 respectively, adjust the length of each telescopic component according to the distance between adjacent screw rods 2, and insert the telescopic device into the n screw rods 2, above the nuts 6 that have been inserted first.

[0032] The third step is to fix the length of the telescopic assembly: tighten the adjustment bolt 5 to fix the telescopic assembly.

[0033] The fourth step is to fix the telescopic device: screw the nut 6 onto the top of the telescopic device to fix the height of the telescopic device.

[0034] The fifth step is to install the lifting equipment for lifting operation: install the lifting bolt 7, screw the lifting bolt 7 into the top of the screw rod 2, insert the lifting rope into the lifting bolt 7, and slowly lift the stator core 1 into the corresponding position of the machine base.

[0035] Finally, remove the stator core shell tooling and the stator installation is completed.

[0036] The preferred embodiments of the present invention are described in detail above. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various equivalent transformations can be made to the technical scheme of the present invention, and these equivalent transformations all belong to the protection scope of the present invention.

Claims

1. A stator core shell inserting tool, characterized in that: It includes n screw rods, telescopic devices and lifting bolts; n screw rods are vertically arranged and evenly distributed along the circumference of the top of the stator core, and are parallel to the central axis of the stator core. One end of the n screw rods is connected to the top of the stator core, wherein n is a positive integer greater than or equal to 3; The telescopic device is connected to the top ends of the n screw rods. The telescopic device includes n interconnected telescopic components. Each telescopic component is arranged horizontally. Both ends of the telescopic component are provided with vertical through holes. The telescopic components are connected to two adjacent screw rods through the through holes. The adjacent telescopic components are connected end to end and movably connected. The lifting bolts are connected to the tops of the n screw rods and are located above the telescopic device.

2. The stator core shell inserting tooling according to claim 1, characterized in that: Each telescopic assembly includes a telescopic rod, a fixing rod and an adjustment bolt; The telescopic rod is slidably connected to the fixed rod, and a hole is provided on the side wall of one end of the telescopic rod close to the fixed rod; One end of the fixing rod that is laterally connected to the telescopic rod is hollow inside and has an opening, and a waist-shaped hole is opened on the side wall of the fixing rod; The adjusting bolt is located in the hole of the telescopic rod and is connected with the telescopic rod through the waist-shaped hole on the side wall of the fixed rod.

3. The stator core shell inserting tooling according to claim 1 is characterized in that: The bottom of the screw rod is provided with a thread, the top of the stator core is provided with a threaded hole, and the screw rod and the stator core are connected in a threaded manner.

4. The stator core shell inserting tool according to claim 1, characterized in that: Nuts are provided at the connection points between the telescopic device and the screw rod. The nuts are located at the bottom and the top of the telescopic device and are in close contact with the telescopic device.

5. The stator core shell inserting tool according to claim 1, characterized in that: n is equal to 4, and the telescopic device includes four telescopic components connected to each other in a square shape.

6. The stator core shell inserting tooling according to claim 1, characterized in that: n is equal to 3, and the telescopic device includes three telescopic components connected to each other in the form of an equilateral triangle.

7. The stator core housing inserting tool according to claim 1, characterized in that: The lifting bolt has a closing portion.

8. The stator core housing inserting tooling according to claim 2, characterized in that: The telescopic rod is longer than the fixed rod.

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