Weftless tape curing device

Abstract

The utility model provides a weftless tape curing device, and belongs to the technical field of motor manufacturing. The device comprises a silicon steel protective sleeve and centralizing frames at the two ends of the silicon steel protective sleeve. The centralizing frame is composed of an outer ring, an inner ring, telescopic structures and a locking structure, the inner ring can freely rotate in the outer ring, the telescopic structures are evenly distributed along the circumference of the inner ring, telescopic changes are achieved through relative rotation of the inner ring and the outer ring, and the centralizing frame adapts to motor rotor rotating shafts of different sizes. The locking structure is matched with a locking rod through a first through hole and a second through hole, and it is ensured that the relative positions of the inner ring and the outer ring are stable in the curing process. The device is compact in design and easy and convenient to operate, motor rotors of different specifications can be efficiently solidified, the operation process is remarkably simplified, and time is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of weftless tape solidification, in particular to a weftless tape solidification device. BACKGROUND

[0002] In the process of motor manufacturing and maintenance, weftless tape as an important fixing material is widely used in the binding and fixing of key parts such as motor rotor end coil and rotor core. Weftless tape shows significant advantages in replacing traditional steel wire binding scheme due to its excellent mechanical properties, heat resistance and insulation performance, not only greatly reducing the consumption of alloy steel, but also improving the overall electrical and mechanical properties. However, weftless tape must be subjected to proper solidification treatment after binding. The current solidification process is generally completed in an oven, but in order to avoid the problem of high-temperature demagnetization of the motor, the motor needs to be placed in a silicon steel protective sleeve, and then the silicon steel protective sleeve is placed in the oven to solidify the weftless tape. For details, please refer to CN201821246246.7 disclosed weftless tape solidification device. The motor body is placed in the sleeve, baffles are arranged at both ends of the sleeve, holes are formed in the baffles to cooperate with the gap of the motor shaft, which is used to support and center the motor, so that the motor body does not contact the inner wall of the sleeve. However, different motors have different shafts, so a variety of hole sizes need to be matched to adapt to different motors, which results in more spare parts, and when in use, the size of the motor shaft needs to be measured, and then the matching baffle needs to be searched, which makes the operation cumbersome, especially for motor maintenance work, the specifications of the motors are quite different, which makes the solidification operation time-consuming. SUMMARY

[0003] In order to solve the above problems, the utility model provides a weftless tape solidification device for solidifying weftless tape of a motor, which can be applied to motor shafts of various sizes, improving its versatility and thus shortening the solidification operation time.

[0004] In order to achieve the above purpose, the utility model provides the following scheme:

[0005] A weftless tape solidification device for solidifying weftless tape of a motor rotor, comprising:

[0006] A silicon steel protective sleeve;

[0007] A centering frame located at both ends of the silicon steel protective sleeve for centering the shaft of the motor rotor, comprising:

[0008] An outer ring;

[0009] An inner ring coaxially arranged outside the outer ring and capable of rotating relative to the outer ring;

[0010] A plurality of telescopic structures are arranged along the circumference of the inner ring, each of which comprises:

[0011] A cylinder portion is fixedly connected to one end of the inner ring and extends radially inward from the other end of the inner ring;

[0012] A rod portion is inserted into the cylinder portion and can axially slide along the cylinder portion;

[0013] A hinged rod is hinged to one end of the outer ring and the other end of the rod portion, so that when the inner ring rotates relative to the outer ring, the hinged rod drives the rod portion to axially extend along the cylinder portion;

[0014] A locking structure is used to lock the relative position of the outer ring and the inner ring.

[0015] As a specific embodiment of the present application, the locking structure comprises:

[0016] A plurality of first through holes arranged along the circumference of the inner ring;

[0017] A second through hole is arranged on the outer ring and radially arranged along the outer ring;

[0018] A locking rod matched with the first through hole and the second through hole, when the locking rod passes through the first through hole and the second through hole at the same time, the inner ring and the outer ring are locked.

[0019] As a specific embodiment of the present application, the telescopic structure has three.

[0020] As a specific embodiment of the present application, the outer wall of the silicon steel protective sleeve is fixed with an axially arranged guide rod; the inner ring or the outer ring is fixed with a guide ring, and the guide rod can be inserted into the guide ring and matched with the gap, so that the centralizer can be installed and disassembled, and the large-size motor rotor can be easily put into the silicon steel protective sleeve.

[0021] As a specific embodiment of the present application, an inner lining cylinder is arranged in the silicon steel protective sleeve, and the inner lining cylinder is not magnetically attracted to the motor rotor, so as to facilitate the disassembly and assembly of the motor rotor in the silicon steel protective sleeve.

[0022] Compared with the prior art, the present application has the following advantages:

[0023] This invention incorporates a straightening frame to clamp the motor rotor shaft. The straightening frame alters the extension and retraction of the telescopic structure through the relative rotation of its inner and outer rings, thus accommodating motor rotor shafts of different sizes. This design allows the same device to be used to solidify motor rotors of varying sizes, simplifying operation and saving solidification time. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of a specific embodiment of the non-woven tape curing device of this utility model;

[0025] Figure 2 for Figure 1 Schematic diagram of the central straightening frame;

[0026] Figure 3 for Figure 2 Schematic diagram of the inner ring structure;

[0027] In the diagram: Silicon steel protective sleeve 100;

[0028] Inner ring 210; outer ring 220; telescopic structure 230; guide rod 310; guide ring 320;

[0029] Cylindrical section 231; Rod section 232; Hinge rod 233;

[0030] First through hole 241; Second through hole 242. Detailed Implementation

[0031] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0032] Example 1

[0033] Please refer to Figures 1-3 This diagram illustrates the structure of a specific embodiment of the non-woven tape curing device of this utility model. The non-woven tape curing device of this utility model is used to cure non-woven tape on a motor rotor. The entire device includes a silicon steel protective sleeve 100 and two straightening frames. Two straightening frames are located at opposite ends of the silicon steel protective sleeve 100 to straighten the motor rotor shaft and prevent the motor rotor from contacting the inner wall of the silicon steel protective sleeve 100. The silicon steel protective sleeve 100 is a sleeve made of silicon steel. During the curing process, the motor rotor is placed inside the silicon steel protective sleeve 100 and then heated for curing. This avoids the problem of high-temperature demagnetization, thereby protecting the motor rotor.

[0034] The silicon steel protective sleeve 100 has an inner liner. The inner liner is made of a non-magnetic material, such as aluminum alloy, to ensure that the motor rotor can be smoothly inserted and removed, avoiding difficulties in disassembly and assembly caused by magnetic attraction. In addition, the silicon steel protective sleeve 100 is provided with three guide rods 310 arranged in a circumferential array along the axial direction. These guide rods 310 are designed to accurately guide the straightening frame during installation and disassembly by cooperating with the guide rings 320 on the self-adaptive straightening frame, simplifying the operation process.

[0035] The straightening frame includes an outer ring 220, an inner ring 210, a telescopic structure 230, and a locking structure. The outer ring 220 and the inner ring 210 are concentrically arranged, and the inner ring 210 can rotate freely within the outer ring 220. There are three sets of telescopic structures 230, evenly distributed on the circumference of the inner ring 210. Each set of telescopic structures 230 consists of a cylindrical part 231, a rod part 232, and a hinge rod 233. One end of the cylindrical part 231 is fixed to the inner ring 210, and the other end extends radially inward along the inner ring 210. One end of the rod 232 is inserted into the cylinder 231 and can slide along the axial direction of the cylinder 231. One end of the hinge rod 233 is hinged to the rod 232 and the other end is hinged to the outer ring 220. Therefore, when the outer ring 220 rotates relative to the inner ring 210, the hinge rod 233 will drive the rod 232 to extend and retract along the axial direction of the cylinder 231, so as to realize the adaptive adjustment of the shaft of motor rotors of different sizes.

[0036] The locking structure serves to fix the relative positions of the outer ring 220 and the inner ring 210, ensuring their stability during the curing process. The locking structure includes multiple first through holes 241 on the circumference of the inner ring 210, a second through hole 242 on the outer ring 220, and a locking rod (not shown in the figure). The second through hole 242 is arranged radially along the outer ring 220. When the second through hole 242 is aligned with the first through hole 241, the positional relationship between the inner and outer rings can be effectively locked by simultaneously inserting a locking rod through both the first through hole 241 and the second through hole 242, preventing accidental movement. Of course, when the locking rod is removed, the inner and outer rings can rotate relative to each other, thereby adjusting the rod portion 232 to accommodate shafts of different sizes.

[0037] A guide ring 310 is fixed on the outer wall of the inner ring 210, and the guide ring 310 cooperates with the guide rod 320 on the silicon steel protective sleeve 100. This design facilitates the overall assembly and disassembly of the device. When in use, the motor rotor can be placed into the silicon steel protective sleeve 100 first, and then the top straightening frame can be installed, that is, the guide ring 310 can be fitted into the guide rod 320.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the embodiments of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A non-woven tape curing device for curing non-woven tape on a motor rotor, characterized in that, include: Silicon steel protective sleeve; The straightening frames located at both ends of the silicon steel protective sleeve are used to straighten the rotor shaft of the motor, and include: Outer ring; An inner ring, which is coaxially arranged outside the outer ring and is rotatable relative to the outer ring; A telescopic structure, wherein there are multiple telescopic structures arranged along the inner circumference; each telescopic structure includes: A cylindrical portion, one end of which is fixedly connected to the inner ring, and the other end of which extends radially inward along the inner ring; A rod portion, one end of which is inserted into the cylindrical portion and is capable of sliding along the axial direction of the cylindrical portion; A hinge rod, one end of which is hinged to the outer ring and the other end of which is hinged to the rod portion, such that when the inner ring rotates relative to the outer ring, the hinge rod drives the rod portion to extend and retract along the axial direction of the cylindrical portion; A locking structure is used to lock the relative positions of the outer ring and the inner ring.

2. The non-woven tape curing device according to claim 1, characterized in that, The locking structure includes: Multiple first through holes arranged along the circumference of the inner ring; A second through hole is located on the outer ring, and the second through hole is arranged radially along the outer ring; A locking rod that matches the first through hole and the second through hole, when the locking rod passes through both the first through hole and the second through hole simultaneously, locks the inner ring and the outer ring.

3. The non-woven tape curing device according to claim 1, characterized in that, There are three telescopic structures.

4. The non-woven tape curing device according to claim 1, characterized in that, The outer wall of the silicon steel protective sleeve is fixed with a guide rod arranged along the axial direction; a guide ring is fixed on the inner ring or the outer ring, and the guide rod can be inserted into the guide ring and fit with it with a clearance.

5. The non-woven tape curing device according to claim 1, characterized in that, The silicon steel protective sleeve is provided with an inner liner, and the inner liner is not magnetically attracted to the motor rotor.

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