High-low voltage motor foot margin reaming device

Abstract

The utility model discloses a high-low voltage motor foot reaming device which comprises a main supporting plate and an angular electric drill, a plurality of compensation sets used for adjusting the horizontal height of the main supporting plate are arranged on the surface of the main supporting plate, and a sliding support used for fixing the position of the angular electric drill is arranged on the main supporting plate. A limiting set for limiting the moving direction of the sliding support is further installed on the main supporting plate, and an adjusting set for driving the angular electric drill and the sliding support to move synchronously is installed on the surface of the main supporting plate. The angle-direction electric drill is simple in structure, the angle-direction electric drill is driven to move left and right under the action of the movable part and the clamping part through the arrangement of the adjusting set, the angle-direction electric drill conveniently corresponds to the reaming position better, the sliding support is limited up and down through the limiting set, and the situation that the sliding support shakes up and down too much to be separated from the groove in the reaming process is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of equipment maintenance, in particular to a high- and low-voltage motor foot reaming device. Background Art

[0002] Centering a coupling in rotating machinery is crucial for safe and proper operation and is a crucial factor in ensuring the quality of maintenance. Minor errors can impact the operating conditions of the equipment after maintenance, while larger errors can impact the economic and safe operation of the unit. The purpose of coupling centering is to ensure that the driving and driven shafts remain concentric and coaxial during operation. Centering accuracy is crucial for proper operation, and is particularly critical for high-speed equipment. Absolutely accurate alignment of the two shafts is challenging to achieve. Errors in machining and installation can compound these issues, leading to deviations exceeding the specified value. Maintaining accurate alignment during continuous high-speed operation is inherently large, further complicating operational challenges. Uneven thermal expansion of components, pump shaft deflection, uneven bearing wear, displacement during operation, and uneven foundation subsidence are all contributing factors to centering deviation. Therefore, a tolerance for centering deviation is established during machine design and installation. From an installation perspective, a larger tolerance ensures safe and reliable torque transmission through the coupling, making installation easier. However, from the perspective of maintenance quality, the smaller the deviation between the two axis center lines, the more accurate the alignment, the better the equipment operation and the longer its service life, which is more beneficial to the long-term safe and stable operation of the unit.

[0003] During the coupling centering process, the motor fixing bolts need to be removed first so that they are not affected by the bolts during the motor adjustment process. Wait until the center axial and radial data meet the standard of ≤0.03mm. After meeting the standard, install and tighten the motor fixing bolts. If the fixing bolts and the bolt holes of the motor base plate collide or are misaligned, it is necessary to mark the approximate position of the motor anchor reaming hole. In the past, when adjusting the axial and radial centers of the main water supply pump and the motor coupling, the following problems occurred: the height of the on-site motor metal base plate is about 250mm relative to the height of the cement foundation, the position is narrow and the construction is long and labor-intensive, and the collision position is a blind spot. There are constraints in the maintenance process. For example, on-site hoisting and reaming require mechanical professionals to remove the oil inlet and return pipelines on both sides of the bearing room, electrical professionals to remove the power cables and the upper cooler of the motor, and instrumentation professionals to remove the bearing temperature and vibration probes on both sides of the bearing room, which consumes a lot of human resources and prolongs the maintenance period. In addition, the work site space is small and the motor is affected by oil pipelines, terminal boxes, instrumentation lines and other equipment on both sides. Without dismantling the equipment, the lifting height of the on-site maintenance vehicle is insufficient, which cannot meet the prerequisite of on-site lifting height to reaming. For this reason, a high and low voltage motor anchor reaming device is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a high and low voltage motor anchor reaming device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high and low voltage motor anchor reaming device, comprising a main support plate and an angular electric drill, the surface of the main support plate being equipped with a plurality of compensation groups for adjusting the horizontal height of the main support plate, the main support plate being provided with a sliding bracket for fixing the position of the angular electric drill, the main support plate being also provided with a limit group for limiting the moving direction of the sliding bracket, the surface of the main support plate being provided with an adjustment group for driving the angular electric drill and the sliding bracket to move synchronously.

[0006] As a further solution of the present invention: a groove is provided through the middle group of the main support plate, the sliding bracket is located in the groove, and a limit group for limiting the movement of the sliding bracket is provided in the groove.

[0007] As a further solution of the present invention: the limiting group includes a T-shaped pressure plate and a limiting bar, the number of the T-shaped pressure plates is two, which are symmetrically installed on the upper surface of the main support plate, and the number of the limiting bars is two, which are symmetrically installed on the inner wall of the groove, the sliding bracket is located between the limiting bar and the T-shaped pressure plate, and is configured to limit the upper and lower positions of the sliding bracket respectively.

[0008] As a further solution of the present invention: the number of the compensation groups is four, and the four compensation groups are respectively located at the four corners of the surface of the main support plate. The compensation groups include a first M16 adjustment screw, and the end group of the first M16 adjustment screw vertically passes through the upper surface of the main support plate, and the other end of the first M16 adjustment screw is installed with an adjustment compensation sleeve, which is configured to extend and compensate the length of the first M16 adjustment screw.

[0009] As a further solution of the present invention: the adjustment group includes a movable part connected to the main support plate, a clamping part installed on the movable part, the movable part includes two limit blocks fixed to the side walls of the main support plate, an M12 fine-tuning screw passing through the two limit blocks, and the surface of the M12 fine-tuning screw is installed with a clamping part.

[0010] As a further solution of the present invention: the clamping part includes a rotating sleeve threaded on the outer surface of the M12 fine-tuning screw, the end of the rotating sleeve is equipped with an angular electric drill clamp, and the surface of the angular electric drill clamp is installed with an M14 tightening screw.

[0011] As a further solution of the present invention: the end group of the angle electric drill is installed with a drill clamp extension sleeve.

[0012] As a further solution of the present invention: at least one second M16 adjustment screw is installed on the side wall of the main support plate and horizontally passes through the main support plate.

[0013] As a further solution of the present invention: a micro level is installed on the upper surface of the main support plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are: the present invention has a novel structure, and through the setting of the adjustment group, under the action of the movable part and the clamping part, the angular electric drill is driven to move left and right, so that it can better correspond to the position of the reaming hole. Secondly, the sliding bracket is restricted up and down by the limit group to prevent it from shaking up and down too much and falling out of the groove during the reaming process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the bottom surface of the main support plate of the utility model;

[0017] Figure 3 This is a schematic diagram of the top surface of the main support plate of the present invention;

[0018] In the figure: 1. Main support plate; 2. First M16 adjustment screw; 3. Adjustment compensation sleeve; 4. Sliding bracket; 5. Angle drill; 6. T-type pressure plate; 7. Limit block; 8. M12 fine-tuning screw; 9. Rotation kit; 10. Angle drill fixture; 11. M14 tightening screw; 12. Limit strip; 13. Drill fixture extension sleeve. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only one group of embodiments of the present invention, not the entire group of embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0020] When using this device to carry out on-site motor base plate reaming operations, the reaming device as a whole is placed into the reserved opening of the motor foot. After the main support plate 1 is roughly positioned up and down, front and back, the sliding bracket 4 is fixed in the groove of the main support plate 1 and fixed by the T-shaped pressure plate 6. The drill clamp extension sleeve 13 and the alloy steel grinding head are installed on the angle electric drill 5. The angle electric drill 5 is fixed on the sliding bracket 4. The angle electric drill clamp 10 firmly fixes the angle electric drill 5 for traction. After adjusting the level through the micro level gauge on the upper part of the main support plate 1, the reaming device is fixed as a whole through the first M16 adjustment screw 2 at the four corners of the main support plate 1 in conjunction with the upper and lower adjustment compensation sleeve 3. The endoscope is connected to the mobile phone, and after the endoscope probe is placed at the position to be reamed, the speed is lowered and the angle electric drill 5 is started. The entire reaming process is observed in real time through the image displayed on the mobile phone through the endoscope, and the motor foot reaming work is completed by moving the sliding bracket 4 left and right to ensure the safety and quality of the reaming process.

[0021] See also Figure 1-3 In an embodiment of the utility model, a high and low voltage motor anchor reaming device includes a main support plate 1 and an angular electric drill 5. The surface of the main support plate 1 is equipped with a plurality of compensation groups for adjusting the horizontal height of the main support plate 1. A sliding bracket 4 for fixing the position of the angular electric drill 5 is provided on the main support plate 1. Two screws are installed on the surface of the sliding bracket 4, and the ends of the two screws pass through the sliding bracket 4 to fix the diagonal electric drill 5. The disassembly and assembly of the angular electric drill 5 on the sliding bracket 4 is completed by rotating the screws clockwise or counterclockwise; a limit group for limiting the moving direction of the sliding bracket 4 is also installed on the main support plate 1, and an adjustment group for driving the angular electric drill 5 and the sliding bracket 4 to move synchronously is installed on the surface of the main support plate 1.

[0022] Specifically, the work site is small and the motor is affected by oil pipelines, terminal boxes, instrumentation and control lines and other equipment on both sides. The operable space of the motor foot is: 490mm x 190mm x 180mm, 40mm thick. Without disassembling the equipment, the angle drill 5 is first fixed on the top of the main support plate 1 using the sliding bracket 4, and then the main support plate 1 is fixed inside the operable space through the compensation group. Secondly, with the main support plate 1 as a reference, the staff operates the adjustment group located outside the operable space to complete the lateral movement of the diagonal drill 5 so that the end of the angle drill 5 corresponds to the position of the reaming hole. The angle drill 5 is used to fix the alloy steel grinding head and rotate the reaming hole.

[0023] See also Figure 1 In one embodiment, in this embodiment, preferably, a groove is provided through the middle group of the main support plate 1, the sliding bracket 4 is located in the groove, and a limit group for limiting the movement of the sliding bracket 4 is provided in the groove.

[0024] See also Figure 1In one embodiment, in this embodiment, preferably, the limiting group includes a T-shaped pressure plate 6 and a limiting bar 12, the number of the T-shaped pressure plates 6 is two, which are symmetrically installed on the upper surface of the main support plate 1, and the number of the limiting bars 12 is two, which are symmetrically installed on the inner wall of the groove, and the sliding bracket 4 is located between the limiting bar 12 and the T-shaped pressure plate 6, and is configured to limit the upper and lower positions of the sliding bracket 4 respectively.

[0025] Specifically, a plurality of screws are installed on the surface of the T-shaped pressure plate 6, and the ends of the plurality of screws pass through the T-shaped pressure plate 6 and are threadedly connected to the surface of the main support plate 1, thereby completing the fixation of the position of the T-shaped pressure plate 6. The protruding area of ​​the T-shaped pressure plate 6 completes the limitation of the upper part of the sliding bracket 4. The limiting strip 12 is installed in the square groove, which plays a certain supporting role on the bottom of the sliding bracket 4, and can also play a limiting role on the sliding bracket 4 to prevent it from shaking up and down during use.

[0026] See also Figure 1 In one embodiment, in this embodiment, preferably, the number of compensation groups is four, and the four compensation groups are respectively located at the four corners of the surface of the main support plate 1. The compensation group includes a first M16 adjustment screw 2, and the end group of the first M16 adjustment screw 2 vertically passes through the upper surface of the main support plate 1, and the other end of the first M16 adjustment screw 2 is installed with an adjustment compensation sleeve 3, which is configured to extend and compensate the length of the first M16 adjustment screw 2.

[0027] Specifically, by rotating the first M16 adjusting screw 2, the end of the first M16 adjusting screw 2 passes through the main support plate 1 and contacts the bottom wall of the operable space, thereby providing a certain support to the main support plate 1. The adjustment compensation sleeve 3 located above the main support plate 1 is rotated, and the position of the adjustment compensation sleeve 3 on the first M16 adjusting screw 2 is changed, so that the end of the first M16 adjusting screw 2 contacts the top wall of the operable space. The adjustment up and down adjustment and cooperation with the adjustment compensation sleeve 3 achieve the purpose of fixing the main support plate 1.

[0028] See also Figure 2 In one embodiment, in this embodiment, preferably, the adjustment group includes a movable part connected to the main support plate 1, a clamping part installed on the movable part, the movable part includes two limit blocks 7 fixed to the side wall of the main support plate 1, and an M12 fine-tuning screw 8 passing through the two limit blocks 7. The surface of the M12 fine-tuning screw 8 is equipped with a clamping part, and the clamping part includes a rotating kit 9 ​​threadedly sleeved on the outer surface of the M12 fine-tuning screw 8. The end of the rotating kit 9 ​​is equipped with an angular electric drill clamp 10, and the surface of the angular electric drill clamp 10 is equipped with an M14 tightening screw 11.

[0029] Specifically, there is a through hole between the M12 fine-tuning screw 8 and the limit block 7, and nuts are installed on both sides of the M12 fine-tuning screw 8 for connection, and the rotating kit 9 ​​and the M12 fine-tuning screw 8 are threadedly connected. By rotating the M12 fine-tuning screw 8, it is driven to rotate along the axial direction of the M12 fine-tuning screw 8 with the rotating kit 9 ​​to drive the angle drill fixture 10 to move. When the angle drill 5 enters the interior of the angle drill fixture 10, the end of the M14 tightening screw 11 is passed through the angle drill fixture 10 to complete the diagonal adjustment. The position of the angle drill 5 inside the electric drill fixture 10 is limited to prevent the angle drill 5 from escaping from the inside of the angle drill fixture 10 during the linkage process. Secondly, the angle drill 5 also limits the angle drill fixture 10. When the M12 fine-tuning screw 8 rotates axially, the rotating kit 9 ​​and the angle drill fixture 10 will drive the angle drill 5 to move synchronously along the length direction of the M12 fine-tuning screw 8, thereby adjusting the lateral position of the angle drill 5 so that the alloy grinding head at the end of the angle drill 5 can correspond to the reaming hole.

[0030] See also Figure 2 In one embodiment, in this embodiment, preferably, the end group of the angle electric drill 5 is installed with a drill clamp extension sleeve 13. Further, because the overall thickness of the motor is 40 mm, the length of the alloy steel grinding head cannot touch the bottom of the motor table, and the drill clamp extension sleeve 13 is used to extend and make up for the length deficiency.

[0031] See also Figure 3 In one embodiment, in this embodiment, preferably, the side wall of the main support plate 1 is installed with at least one second M16 adjustment screw that horizontally passes through the main support plate 1. In this example, preferably, the number of the second M16 adjustment screws is two, and the two second M16 adjustment screws are both arranged on the same side wall of the main support plate 1. Further, the radial front and rear position of the main support plate 1 relative to the bolt hole is adjusted by rotating the second M16 adjustment screw.

[0032] See also Figure 3 In one embodiment, in this embodiment, preferably, a micro level is installed on the upper surface of the main support plate 1, which is further used to observe and adjust the horizontality of the main support plate 1 before rotary reaming, to ensure the verticality of the angle electric drill 5 and the alloy steel grinding head, and to avoid uneven reaming of the upper and lower holes due to the tilt of the main support plate 1.

[0033] The working principle and use process of the utility model are as follows: the sliding bracket 4 is installed in the groove of the main support plate 1, and the T-shaped pressure plate 6 is installed in the reserved groove above the main support plate 1. It should not protrude from the surface of the main support plate 1 so as not to affect the left and right movement of the angular electric drill 5. The T-shaped pressure plate 6 can limit the sliding bracket 4 to prevent it from shaking up and down. At the same time, a certain gap is left between the T-shaped pressure plate 6 and the sliding bracket 4, and the sliding bracket 4 should be able to move flexibly left and right; the four first M16 adjustment screws 2 are installed on the main support plate 1 in sequence, and the adjustment compensation sleeve is installed. 3 is used to adjust the compensation expansion and contraction up and down and fix the main support plate 1; install two M15 screws in the threaded holes on the side of the main support plate 1 to adjust the main support plate 1; install an M12 fine-tuning screw 8 on the limit blocks 7 at both ends of the side of the main support plate 1, and use the angle drill fixture 10 to drive the angle drill fixture 10 and the angle drill 5 to move left and right through the M12 fine-tuning screw 8 during construction; place the assembled reaming device at the reserved opening of the motor foot, and connect the angle drill 5 to the drill fixture extension sleeve 13 At the same time, fix the alloy steel grinding head on the drill fixture extension sleeve 13 and install it on the sliding bracket 4, and fix the angle electric drill 5 through the threaded rod; clamp the angle electric drill fixture 10 on the handle position of the angle electric drill 5, place the micro level on the main support plate 1, observe whether it is level front and back, left and right, and adjust it through the four first M16 adjustment screws 2. Finally, fix the entire device by rotating the adjustment compensation sleeve 3, reduce the speed of the angle electric drill 5, and drive the angle electric drill fixture 10 left and right through the M12 fine-tuning screw 8. Move, and at the same time fine-tune the two M15 screws to move the main support plate 1 back and forth as a whole, close to the position area where the hole is to be reamed, finally turn on the endoscope and connect it to the mobile phone display screen via wifi. After the display is normal, place the endoscope probe at the reaming position, adjust the endoscope auxiliary light, extend the endoscope (12) probe to the motor reaming position to facilitate real-time observation of the reaming effect so that timely adjustments can be made, rotate the M12 fine-tuning screw 8 → drive the angular electric drill fixture 10 → drive the sliding bracket 4 and the angular electric drill 5 to move left and right to finally complete the reaming work.

[0034] Although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0035] Therefore, the above description is only a preferred embodiment of the present application and is not intended to limit the scope of implementation of the present application; that is, all equivalent modifications made according to the scope of the claims of the present application are within the scope of protection of the claims of the present application.

Claims

1. A high and low voltage motor anchor reaming device, comprising a main support plate (1) and an angle drill (5), characterized in that: The surface of the main support plate (1) is provided with a plurality of compensation groups for adjusting the horizontal height of the main support plate (1); the main support plate (1) is provided with a sliding bracket (4) for fixing the position of the angular electric drill (5); the main support plate (1) is also provided with a limit group for limiting the moving direction of the sliding bracket (4); the surface of the main support plate (1) is provided with an adjustment group for driving the angular electric drill (5) and the sliding bracket (4) to move synchronously.

2. The high and low voltage motor anchor reaming device according to claim 1, characterized in that: The middle group of the main support plate (1) is provided with a groove running through it, the sliding bracket (4) is located in the groove, and a limit group for limiting the movement of the sliding bracket (4) is provided in the groove.

3. The high and low voltage motor anchor reaming device according to claim 2, characterized in that: The limiting group comprises a T-shaped pressure plate (6) and a limiting strip (12), wherein the number of the T-shaped pressure plates (6) is two and they are symmetrically mounted on the upper surface of the main support plate (1), and the number of the limiting strips (12) is two and they are symmetrically mounted on the inner wall of the groove, and the sliding bracket (4) is located between the limiting strip (12) and the T-shaped pressure plate (6), and is configured to limit the upper and lower positions of the sliding bracket (4) respectively.

4. The high and low voltage motor anchor reaming device according to claim 1, characterized in that: The number of the compensation groups is four, and the four compensation groups are respectively located at four corners of the surface of the main support plate (1). The compensation groups include a first M16 adjustment screw (2), and the end group of the first M16 adjustment screw (2) vertically penetrates the upper surface of the main support plate (1), and the other end of the first M16 adjustment screw (2) is installed with an adjustment compensation sleeve (3) configured to extend and compensate the length of the first M16 adjustment screw (2).

5. The high and low voltage motor anchor reaming device according to claim 1, characterized in that: The adjustment group comprises a movable part connected to the main support plate (1), a clamping part installed on the movable part, the movable part comprises two limit blocks (7) fixed to the side walls of the main support plate (1), an M12 fine-tuning screw (8) passing through the two limit blocks (7), and the surface of the M12 fine-tuning screw (8) is equipped with the clamping part.

6. The high and low voltage motor anchor reaming device according to claim 5, characterized in that: The clamping part comprises a rotating sleeve (9) threadedly sleeved on the outer surface of an M12 fine-tuning screw (8), an angular electric drill fixture (10) is installed at the end of the rotating sleeve (9), and an M14 tightening screw (11) is installed on the surface of the angular electric drill fixture (10).

7. The high and low voltage motor anchor reaming device according to claim 1, characterized in that: The end group of the angle electric drill (5) is equipped with a drill fixture extension sleeve (13).

8. The high and low voltage motor anchor reaming device according to claim 1, characterized in that: At least one second M16 adjustment screw rod is installed on the side wall of the main support plate (1) and horizontally penetrates the main support plate (1).

9. The high and low voltage motor anchor reaming device according to claim 1, characterized in that: A micro-level is installed on the upper surface of the main support plate (1).

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