Device for checking groove depth of steam turbine generator stator coil inserting groove
By designing a device consisting of a base, a column, an arc-shaped clamping plate and an adjustment mechanism, the error problem caused by human shaking in the detection of the stator lower slot depth was solved, and the accurate measurement of the stator slot depth was achieved.
Patent Information
- Application Number
- CN202422997470.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-05
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-12-05
AI Technical Summary
In the existing stator lower line slot depth detection, the detection results are inaccurate due to the shaking of the workers' hands.
A device including a base, a column, an arc-shaped splint, a cylinder, a sleeve, a detection strip and an adjustment mechanism was designed. The stator was fixed by the cylinder, the sleeve was fitted with the inner wall of the stator, and the adjustment mechanism was used to accurately move the detection strip to measure the groove depth.
The accurate detection of the stator lower wire slot depth is achieved, the error caused by human shaking is reduced, and the detection accuracy is improved.
Smart Images
Figure CN223389097U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of motor stator detection, in particular to a device for checking the depth of a lower wire slot of a steam turbine generator stator. Background Art
[0002] The motor stator is the stationary part of the motor, usually composed of three parts: the stator core, the stator winding and the frame. Its main function is to generate a rotating magnetic field and interact with the rotor to drive the rotor to rotate and realize the conversion of electrical energy into mechanical energy.
[0003] Existing stators usually need to undergo multiple inspections during the production process, and the stator's lower wire slot depth inspection is an important one. However, in most existing stator lower wire slot depth inspections, workers hold the motor stator with one hand and measure with a ruler with the other hand. This is prone to shaking of the stator and ruler due to the shaking of the worker's hand, resulting in inaccurate stator lower wire slot depth inspection results. Utility Model Content
[0004] In view of the above-mentioned problems existing in the detection of the depth of the lower slot of the existing stator, the present utility model is proposed.
[0005] Therefore, the purpose of the utility model is to provide a device for checking the depth of the lower wire slot of the stator of a steam turbine generator, which solves the problem that the existing stator lower wire slot depth detection work is mostly done by the staff holding the motor stator with one hand and measuring with a ruler with the other hand. This is easy to cause the stator and ruler to shake due to the shaking of the staff's hands, thereby resulting in inaccurate detection results of the stator lower wire slot depth.
[0006] In order to achieve the above purpose, the present invention provides the following technical solutions:
[0007] A device for checking the depth of a lower wire slot of a steam turbine generator stator comprises a base, wherein the upper surface of the base is fixedly connected to a column, the outer surface of the column is sleeved with a motor stator, the lower surface of the base is fixedly connected to a bidirectional cylinder, the two output ends of the bidirectional cylinder are fixedly connected to sliders, the upper surfaces of the two sliders pass through the upper surface of the base and fix the mechanism arc clamping plate, the motor stator is fixed by the two arc clamping plates, the side wall of the column is symmetrically provided with two slide grooves, the interiors of the two slide grooves are slidably provided with sleeves, the interior of the column is provided with two first cavities, the interiors of the two first cavities are provided with first adjustment mechanisms, the two sleeves are respectively moved by the corresponding first adjustment mechanisms, the interiors of the two sleeves are slidably provided with detection strips, the interiors of the two slide grooves are provided with second adjustment mechanisms, the two detection strips are respectively moved by the corresponding second adjustment mechanisms, a second cavity is provided between the two slide grooves, the interior of the second cavity is provided with a drive mechanism, and the two first adjustment mechanisms and the second adjustment mechanisms are matched with the drive mechanism.
[0008] Preferably, the first adjusting mechanism includes two first screw rods, two slide bars and two first bevel gears, the two first screw rods are respectively rotatably connected to the interior of the corresponding first cavities, the two slide bars are respectively threadedly sleeved on the rod walls of the corresponding first screw rods, the upper ends of the two slide bars respectively penetrate the upper surface of the interior of the corresponding first cavity and are respectively fixedly connected to the corresponding sleeves, one end of the two first screw rods respectively penetrates one end of the corresponding first cavity and extends to the interior of the second cavity, and the two first bevel gears are respectively fixedly sleeved on the rod walls of the corresponding first screw rods.
[0009] Preferably, the second adjusting mechanism includes two first rotating rods, two second bevel gears and two second screw rods, the interior of the two detection strips are provided with internal thread grooves, the two second screw rods are respectively threadedly arranged in the interior of the corresponding internal thread grooves, one end of the two second screw rods is provided with a through groove, the two first rotating rods are respectively slidably arranged in the interior of the corresponding through grooves, one end of the two first rotating rods respectively rotates one side of the corresponding slide groove, one end of the two first rotating rods respectively passes through one side of the corresponding slide groove and extends to the interior of the second cavity, and the two second bevel gears are respectively fixedly connected to the rod wall of the corresponding first rotating rod.
[0010] Preferably, the driving mechanism includes a second rotating rod, two third bevel gears and a knob, a through hole is opened on the upper surface of the second cavity, the second rotating rod is slidably arranged inside the through hole, the two third bevel gears are symmetrically fixedly connected to the rod wall of the second rotating rod, the knob is fixedly connected to one end of the second rotating rod, and the two third bevel gears are respectively matched with the corresponding first bevel gear or second bevel gear.
[0011] Preferably, first limiting grooves are symmetrically provided on the inner sides of the two sleeves, and a limiting block is slidably provided inside each of the first limiting grooves, and each of the limiting blocks is fixedly connected to the outer surface of the corresponding detection strip.
[0012] Preferably, two second limiting grooves are symmetrically provided on the inner walls of the two through grooves, and synchronization blocks are slidably provided inside the corresponding two second limiting grooves, and the two synchronization blocks are respectively fixedly connected to one end of the corresponding first rotating rod.
[0013] Preferably, scales are provided on one side of the two test strips.
[0014] Preferably, two first strip-shaped holes are symmetrically provided on the upper surface of the base, and the two first strip-shaped holes are matched with corresponding sliders respectively.
[0015] Preferably, a second strip-shaped hole is provided between each of the two first cavities and the corresponding slide grooves, and the two second strip-shaped holes are matched with the corresponding slide bars respectively.
[0016] In the above technical solution, the technical effects and advantages provided by the utility model are:
[0017] 1. The utility model places the motor stator on the upper surface of the base, then starts the two-way cylinder to drive the two arc-shaped clamping plates to move and fix the motor stator, then moves the sleeve to fit the inner wall of the motor stator, then moves the detection strip to the inside of the lower wire groove of the motor stator, and then measures the distance the detection strip moves to know the length of the lower wire groove.
[0018] 2. In the present invention, by rotating the knob, the second rotating rod can be rotated, and then the two first bevel gears can be rotated by using the third bevel gear. Then, the knob is pulled and rotated. During this process, another third bevel gear engages with the two second bevel gears, thereby rotating the two second bevel gears. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.
[0020] Figure 1 It is a structural diagram of the utility model;
[0021] Figure 2 For the utility model Figure 1 a cross-sectional view of the center column;
[0022] Figure 3For the utility model Figure 2 Cross-sectional view of the middle screw;
[0023] Figure 4 For the utility model Figure 2 Schematic diagram of the structure of the detection strip;
[0024] Figure 5 For the utility model Figure 1 Top view of the motor stator.
[0025] Description of reference numerals:
[0026] 1. Base; 2. Cylinder; 3. Motor stator; 4. Bidirectional cylinder; 5. Slider; 6. Arc splint; 7. Sleeve; 8. Detection strip; 9. First screw rod; 10. Slider; 11. First bevel gear; 12. First rotating rod; 13. Second bevel gear; 14. Second screw rod; 15. Second rotating rod; 16. Third bevel gear; 17. Knob; 18. Limit block; 19. Synchronizing block; 20. Scale. DETAILED DESCRIPTION
[0027] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.
[0028] The embodiment of the utility model discloses a device for checking the depth of a lower wire slot of a steam turbine generator stator.
[0029] Example 1
[0030] Reference Figure 1-5 A device for checking the depth of the lower wire slot of a steam turbine generator stator comprises a base 1, a column 2 is fixedly connected to the upper surface of the base 1, a motor stator 3 is sleeved on the outer surface of the column 2, a two-way cylinder 4 is fixedly connected to the lower surface of the base 1, and two output ends of the two-way cylinder 4 are fixedly connected to sliders 5, the upper surfaces of the two sliders 5 pass through the upper surface of the base 1 and fix the mechanism arc-shaped clamping plate 6, the motor stator 3 is fixed by two arc-shaped clamping plates 6, two slide grooves are symmetrically provided on the side wall of the column 2, sleeves 7 are slidably provided inside the two slide grooves, two first cavities are provided inside the two first cavities, first adjustment mechanisms are provided inside the two first cavities, the two sleeves 7 are respectively moved by the corresponding first adjustment mechanisms, and detection strips 8 are slidably provided inside the two sleeves 7.
[0031] Place the motor stator 3 on the upper surface of the base 1, then start the bidirectional cylinder 4 to drive the two arc-shaped clamps 6 to move and fix the motor stator 3, then move the sleeve 7 and make it fit with the inner wall of the motor stator 3, then move the detection bar 8 and move it to the inside of the lower wire groove of the motor stator 3, and then know the length of the lower wire groove by measuring the distance moved by the detection bar 8.
[0032] Reference Figure 2 The first adjusting mechanism includes two first screw rods 9, two slide bars 10 and two first bevel gears 11. The two first screw rods 9 are respectively rotatably connected to the inside of the corresponding first cavity. The two slide bars 10 are respectively threadedly sleeved on the rod wall of the corresponding first screw rod 9. The upper ends of the two slide bars 10 respectively penetrate the upper surface of the inside of the corresponding first cavity and are respectively fixedly connected to the corresponding sleeve 7. One end of the two first screw rods 9 respectively penetrates one end of the corresponding first cavity and extends to the inside of the second cavity. The two first bevel gears 11 are respectively fixedly sleeved on the rod wall of the corresponding first screw rod 9.
[0033] The two first bevel gears 11 are rotated to move the two first screw rods 9 and then the two slide bars 10 to respectively drive the corresponding sleeves 7 to move.
[0034] Reference Figure 2-4 , a second adjusting mechanism is provided inside the two slides, and the two detection bars 8 are moved respectively by the corresponding second adjusting mechanism. The second adjusting mechanism includes two first rotating rods 12, two second bevel gears 13 and two second screw rods 14. The interiors of the two detection bars 8 are provided with internal thread grooves, and the two second screw rods 14 are respectively threadedly arranged inside the corresponding internal thread grooves, and one end of the two second screw rods 14 is provided with through grooves, and the two first rotating rods 12 are respectively slidably arranged inside the corresponding through grooves, and one end of the two first rotating rods 12 rotates one side of the corresponding slide groove respectively, and one end of the two first rotating rods 12 respectively passes through one side of the corresponding slide groove and extends to the interior of the second cavity, and the two second bevel gears 13 are respectively fixedly connected to the rod wall of the corresponding first rotating rod 12, and the inner walls of the two through grooves are symmetrically provided with two second limiting grooves, and the corresponding two second limiting grooves are internally slidably provided with synchronization blocks 19, and the two synchronization blocks 19 are respectively fixedly connected to one end of the corresponding first rotating rod 12.
[0035] The two second bevel gears 13 are rotated to rotate the two first rotating rods 12 , and then the second screw rod 14 is rotated by the synchronization block 19 , and then the two detection bars 8 are moved.
[0036] Reference Figure 1-2 A second cavity is provided between the two slide grooves, and a driving mechanism is provided inside the second cavity. The two first adjustment mechanisms and the second adjustment mechanisms are matched with the driving mechanism. The driving mechanism includes a second rotating rod 15, two third bevel gears 16 and a knob 17. A through hole is provided on the upper surface of the second cavity. The second rotating rod 15 is slidably arranged inside the through hole. The two third bevel gears 16 are symmetrically fixed to the rod wall of the second rotating rod 15. The knob 17 is fixedly connected to one end of the second rotating rod 15. The two third bevel gears 16 are respectively matched with the corresponding first bevel gear 11 or the second bevel gear 13.
[0037] Rotating the knob 17 can rotate the second rotating rod 15, and then the third bevel gear 16 can be used to rotate the two first bevel gears 11. Then, pulling the knob 17 and rotating it, during which another third bevel gear 16 engages with the two second bevel gears 13, thereby rotating the two second bevel gears 13.
[0038] Example 2
[0039] Based on the first embodiment, Figure 1-2 The inner sides of the two sleeves 7 are symmetrically provided with first limiting grooves, and a limiting block 18 is slidably provided inside each first limiting groove, and each limiting block 18 is fixedly connected to the outer surface of the corresponding detection strip 8.
[0040] Each limiting block 18 can play a limiting role, thereby preventing the detection strip 8 from rotating.
[0041] Example 3
[0042] Based on the first embodiment, Figure 1-2 , scales 20 are provided on one side of the two detection strips 8 .
[0043] The depth of the lower wire slot of the motor stator can be known by using the scale 20.
[0044] Example 4
[0045] Based on the first embodiment, Figure 1 Two first strip holes are symmetrically opened on the upper surface of the base 1 , and the two first strip holes are matched with the corresponding sliders 5 respectively.
[0046] The two first strip-shaped holes can facilitate the movement of the two sliders 5 .
[0047] Example 5
[0048] Based on the first embodiment, Figure 2 A second strip-shaped hole is provided between the two first cavities and the corresponding slide grooves, and the two second strip-shaped holes are matched with the corresponding slide bars 10 respectively.
[0049] The two second strip-shaped holes can facilitate the movement of the corresponding slide bar 10 .
[0050] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A device for checking the depth of the lower wire slot of a steam turbine generator stator, comprising a base (1), characterized in that: The upper surface of the base (1) is fixedly connected to a column (2), the outer surface of the column (2) is sleeved with a motor stator (3), the lower surface of the base (1) is fixedly connected to a bidirectional cylinder (4), the two output ends of the bidirectional cylinder (4) are fixedly connected to sliders (5), the upper surfaces of the two sliders (5) pass through the upper surface of the base (1) and fix the arc-shaped clamping plate (6), the motor stator (3) is fixed by the two arc-shaped clamping plates (6), the side wall of the column (2) is symmetrically provided with two sliding grooves, the interior of the two sliding grooves is slidably provided with sleeves (7), Two first cavities are provided inside the column (2), a first adjustment mechanism is provided inside each of the two first cavities, the two sleeves (7) are moved respectively by the corresponding first adjustment mechanism, a detection bar (8) is slidably provided inside each of the two sleeves (7), a second adjustment mechanism is provided inside each of the two chutes, the two detection bars (8) are moved respectively by the corresponding second adjustment mechanism, a second cavity is provided between the two chutes, a driving mechanism is provided inside the second cavity, and the two first adjustment mechanisms and the second adjustment mechanism are both matched with the driving mechanism.
2. The device for checking the depth of the lower wire slot of a steam turbine generator stator according to claim 1, characterized in that: The first adjustment mechanism includes two first screw rods (9), two slide bars (10) and two first bevel gears (11). The two first screw rods (9) are respectively rotatably connected to the interior of the corresponding first cavity. The two slide bars (10) are respectively threadedly sleeved on the rod wall of the corresponding first screw rod (9). The upper ends of the two slide bars (10) respectively penetrate the upper surface of the interior of the corresponding first cavity and are respectively fixedly connected to the corresponding sleeve (7). One end of the two first screw rods (9) respectively penetrates one end of the corresponding first cavity and extends to the interior of the second cavity. The two first bevel gears (11) are respectively fixedly sleeved on the rod wall of the corresponding first screw rod (9).
3. The device for checking the depth of the lower wire slot of a steam turbine generator stator according to claim 1, characterized in that: The second adjustment mechanism includes two first rotating rods (12), two second bevel gears (13) and two second screw rods (14). The interiors of the two detection strips (8) are provided with internal thread grooves. The two second screw rods (14) are respectively threadedly arranged in the interiors of the corresponding internal thread grooves. One end of the two second screw rods (14) is provided with a through groove. The two first rotating rods (12) are respectively slidably arranged in the interiors of the corresponding through grooves. One end of the two first rotating rods (12) rotates one side of the corresponding sliding groove respectively. One end of the two first rotating rods (12) passes through one side of the corresponding sliding groove and extends to the interior of the second cavity. The two second bevel gears (13) are respectively fixedly connected to the rod wall of the corresponding first rotating rod (12).
4. The device for checking the depth of the lower wire slot of a steam turbine generator stator according to claim 1, characterized in that: The driving mechanism comprises a second rotating rod (15), two third bevel gears (16) and a knob (17); a through hole is provided on the upper surface of the second cavity; the second rotating rod (15) is slidably arranged inside the through hole; the two third bevel gears (16) are symmetrically fixedly connected to the rod wall of the second rotating rod (15); the knob (17) is fixedly connected to one end of the second rotating rod (15); and the two third bevel gears (16) are respectively matched with the corresponding first bevel gear (11) or second bevel gear (13).
5. The device for checking the depth of the lower wire slot of a steam turbine generator stator according to claim 1, characterized in that: The inner sides of the two sleeves (7) are symmetrically provided with first limiting grooves, and a limiting block (18) is slidably provided inside each of the first limiting grooves, and each limiting block (18) is fixedly connected to the outer surface of the corresponding detection strip (8).
6. The device for checking the depth of the lower wire slot of a steam turbine generator stator according to claim 3, characterized in that: Two second limiting grooves are symmetrically formed on the inner walls of the two through grooves, and a synchronization block (19) is slidably provided inside the corresponding two second limiting grooves. The two synchronization blocks (19) are respectively fixedly connected to one end of the corresponding first rotating rod (12).
7. The device for checking the depth of the lower wire slot of a steam turbine generator stator according to claim 1, characterized in that: One side of the two detection strips (8) is provided with a scale (20).
8. The device for checking the depth of the lower wire slot of a steam turbine generator stator according to claim 1, characterized in that: Two first strip-shaped holes are symmetrically provided on the upper surface of the base (1), and the two first strip-shaped holes are matched with corresponding sliders (5) respectively.
9. The device for checking the depth of the lower wire slot of a steam turbine generator stator according to claim 1, characterized in that: A second strip-shaped hole is provided between each of the two first cavities and the corresponding slide grooves, and the two second strip-shaped holes are matched with the corresponding slide bars (10) respectively.