Calibration device for circulating water pump
By designing a circulating water pump calibration device, high-precision calibration of the circulating water pump is achieved by utilizing the multi-directional position adjustment of the frame and horizontal adjustment components. This solves the problem of time-consuming and labor-intensive multi-person collaboration in existing technologies, and improves calibration efficiency and accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUADIAN XIGANG POWER GENERATION CO LTD
- Filing Date
- 2025-06-11
- Publication Date
- 2026-05-12
AI Technical Summary
The existing concentricity calibration process for circulating water pumps requires the collaboration of multiple people, which is time-consuming and labor-intensive, especially in space-constrained operating environments.
Design a circulating water pump calibration device, including a frame, a movable plate, and a horizontal adjustment component. The device achieves multi-directional position adjustment by having an adjustment rod abut against the movable plate. The calibration rope is aligned with the center line of the water pump cylinder. The calibration rope passes vertically through the centering hole on the movable plate, enabling synchronous movement in multiple directions. This device replaces the water pump shaft, which extends into the cylinder until calibration is achieved.
It enables high-precision calibration and maintenance of circulating water pumps, reducing manpower consumption and improving calibration efficiency and accuracy.
Smart Images
Figure CN224223233U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water pump maintenance technology, and in particular to a circulating water pump calibration device. Background Technology
[0002] In industrial circulating water systems, the circulating water pump is one of the core pieces of equipment, and its operational stability directly affects the overall efficiency and safety of the system. However, during the maintenance of the circulating water pump, the calibration of the cylinder concentricity is particularly important.
[0003] Currently, traditional concentricity calibration methods typically rely on manual operation, such as using mechanical measuring tools like dial indicators, feeler gauges, and steel wires, with multiple people working together to adjust the relative position of the cylinder and the pump shaft. However, this method requires at least two people operating at each end of the steel wire: one to hold the wire in place, and the other to adjust its position and tension. The steel wire needs to be precisely aligned with the workpiece's axis or reference point, requiring multiple people to repeatedly adjust its position to ensure it is parallel or coincident with the workpiece's axis. This process is time-consuming and labor-intensive, especially in space-constrained working environments. Utility Model Content
[0004] The main purpose of this invention is to propose a circulating water pump calibration device, which aims to solve the problem that the existing circulating water pump concentricity calibration process usually requires the cooperation of multiple people and is time-consuming and laborious.
[0005] To achieve the above objectives, the present invention proposes a circulating water pump calibration device, which includes:
[0006] The frame is mounted above the pump cylinder;
[0007] A movable plate, movably mounted on the frame, has a centering hole for the calibration rope to pass through; and
[0008] A plurality of horizontal adjustment components are provided, and the plurality of horizontal adjustment components are spaced apart on the frame. Each horizontal adjustment component includes an adjustment rod that abuts against the movable plate. The position of the movable plate on the frame is adjusted by changing the extension length of the adjustment rod until the calibration rope coincides with the center line of the water pump cylinder.
[0009] In one embodiment, the movable plate is a square plate, and at least one of the horizontal adjustment components is provided on each of the four peripheries of the square plate.
[0010] In one embodiment, the adjusting rod is a threaded rod, and the leveling assembly further includes:
[0011] A guide sleeve is fixedly mounted on the frame, and the threaded rod passes through the guide sleeve and abuts against the movable plate; and
[0012] A lock nut, threadedly engaged with the adjusting rod, is used to fix the position of the adjusting rod after adjustment.
[0013] In one embodiment, the leveling assembly further includes a handwheel, which is fixedly disposed at the end of the adjusting rod away from the movable plate.
[0014] In one embodiment, the circulating water pump calibration device further includes a calibration plate with a calibration position. The calibration plate is disposed inside the water pump cylinder such that the calibration position is concentric with the center of the water pump cylinder.
[0015] In one embodiment, the circulating water pump calibration device further includes a conductive contact detector located at the calibration position, which emits a warning signal when the calibration rope comes into contact with the conductive contact detector.
[0016] In one embodiment, the circulating water pump calibration device further includes a height adjustment component, the height adjustment component comprising:
[0017] The bracket is fixedly mounted on the movable plate; and
[0018] A rope supply rod is rotatably connected to the bracket, the rope supply rod having a working end extending above the centering hole, the working end having the calibration rope wound around it to supply the calibration rope into the centering hole.
[0019] In one embodiment, the height adjustment assembly further includes a drive rod located at the other end of the rope supply rod and perpendicular to the rope supply rod.
[0020] In one embodiment, the circulating water pump calibration device further includes a counterweight located at the end of the calibration rope and inside the water pump cylinder.
[0021] In one embodiment, the circulating water pump calibration device further includes a hook that connects the counterweight and the calibration rope.
[0022] The technical solution of this utility model involves setting multiple horizontal adjustment components on the frame and using an adjustment rod that abuts against the movable plate. By individually adjusting the extension length of the adjustment rod in each horizontal adjustment component, the movable plate can be moved in the target direction, achieving fine-tuning of its position. This allows for precise adjustment of the movable plate's position in multiple directions (front, back, left, and right) on the frame. A calibration rope passes vertically through the centering hole on the movable plate, achieving synchronous movement in multiple directions under the movement of the movable plate. This rope can replace the water pump shaft, extending into the cylinder until it is aligned with the center line of the water pump cylinder. At this point, the water pump shaft can be installed in its current position inside the cylinder, thus achieving high-precision calibration and maintenance of the circulating water pump. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0024] Figure 1 A schematic diagram of an embodiment of the circulating water pump calibration device provided by this utility model;
[0025] Figure 2 A schematic diagram of the movable plate in another embodiment of the circulating water pump calibration device provided by this utility model;
[0026] Figure 3 A schematic diagram of the height adjustment component in another embodiment of the circulating water pump calibration device provided by this utility model.
[0027] Explanation of icon numbers:
[0028] 100. Circulating water pump calibration device; 1. Frame; 2. Movable plate; 21. Centering hole; 3. Horizontal adjustment assembly; 31. Adjusting rod; 32. Guide sleeve; 33. Locking nut; 4. Calibration plate; 41. Calibration position; 5. Conductive contact detector; 6. Height adjustment assembly; 61. Bracket; 62. Rope supply rod; 621. Working end; 63. Drive rod; 7. Counterweight; 8. Hook.
[0029] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0031] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.
[0032] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0033] Traditional concentricity calibration methods typically rely on manual operation, using mechanical measuring tools such as dial indicators, feeler gauges, and steel wires, with multiple people working together to adjust the relative position of the cylinder and the pump shaft. However, this method requires at least two people operating at each end of the steel wire: one to hold the wire in place, and the other to adjust its position and tension. The steel wire needs to be precisely aligned with the workpiece's axis or reference point, requiring multiple people to repeatedly adjust its position to ensure it is parallel or coincident with the workpiece's axis. This process is time-consuming and labor-intensive, especially in space-constrained working environments.
[0034] This utility model proposes a circulating water pump calibration device.
[0035] Please see Figure 1 and Figure 2 In one embodiment of this utility model, the circulating water pump calibration device 100 includes:
[0036] Frame 1 is mounted above the water pump cylinder;
[0037] Movable plate 2, movably mounted on frame 1, has a centering hole 21 for the calibration rope to pass through; and
[0038] Multiple horizontal adjustment components 3 are provided, and the multiple horizontal adjustment components 3 are spaced apart on the frame 1. Each horizontal adjustment component 3 includes an adjustment rod 31 that abuts against the movable plate 2. By changing the extension length of the adjustment rod 31, the position of the movable plate 2 on the frame 1 is adjusted until the calibration rope coincides with the center line of the water pump cylinder.
[0039] The technical solution of this utility model involves setting multiple horizontal adjustment components 3 on the frame 1, and using an adjustment rod 31 to abut against the movable plate 2. By individually adjusting the extension length of the adjustment rod 31 in each horizontal adjustment component 3, the movable plate 2 can be moved in the target direction, achieving fine-tuning of the position of the movable plate 2. This allows for precise adjustment of the position of the movable plate 2 in multiple directions (front, back, left, and right) on the frame 1. The calibration rope passes vertically through the centering hole 21 on the movable plate 2, achieving synchronous movement in multiple directions under the drive of the movable plate 2. It can replace the water pump shaft and extend into the inside of the cylinder until the calibration rope is aligned with the center line of the water pump cylinder. At this point, the water pump shaft can be installed in the cylinder in its current position, thereby achieving high-precision calibration and maintenance of the circulating water pump.
[0040] Specifically, the frame 1 can be composed of a square plate made of high-strength steel or aluminum alloy and supporting legs. The square plate covers the water pump, and its four corners are fixed to the water pump body by bolts or welding. The supporting legs can be designed as foldable or telescopic structures to facilitate quick installation and disassembly on water pumps of different sizes. The movable plate 2 can be of any shape, such as round, square, or rectangular, as long as it meets the requirements for calibration rope passage and position adjustment. To improve the wear resistance and corrosion resistance of the movable plate 2, its surface can be anodized, such as chrome-plated, zinc-plated, or painted. The size of the centering hole 21 on the movable plate 2 should be compatible with the diameter of the calibration rope to ensure that the calibration rope can pass smoothly and be adjusted to coincide with the center line of the water pump body. The horizontal adjustment assembly 3 can include an adjusting rod 31 and a corresponding adjusting nut or lead screw or other transmission components. The adjusting rod 31 can be in the form of a threaded rod, and the extension length of the adjusting rod 31 is controlled by rotating the adjusting nut. For example, when it is necessary to move the movable plate 2 in a certain direction, the corresponding adjusting nut is rotated clockwise or counterclockwise to change the installation position of the adjusting rod 31 on the frame 1, thereby pushing or pulling the movable plate 2 to move.
[0041] In the embodiments of this utility model, please refer to Figure 2The movable plate 2 is a square plate, and at least one horizontal adjustment component 3 is provided on each of the four peripheries of the square plate. By providing at least one horizontal adjustment component 3 on each of the four peripheries of the square movable plate 2, the position of the movable plate 2 can be precisely adjusted from multiple directions, realizing a multi-point adjustment method and avoiding the problem that the calibration rope cannot be accurately aligned with the center of the cylinder due to the movement of a single point or a small number of adjustment points.
[0042] The specific adjustment process is as follows: First, observe the relative position of the calibration rope and the center line of the water pump cylinder to roughly determine the direction and distance that the movable plate 2 needs to move. Based on this preliminary judgment, adjust the horizontal adjustment components 3 on the four periphery of the movable plate 2 respectively. By changing the extension length of the adjustment rod 31, the movable plate 2 moves accordingly on the frame 1, causing the calibration rope to gradually approach the center line of the water pump cylinder. When the calibration rope coincides with the center line of the water pump cylinder, fix each horizontal adjustment component 3 with the locking device to keep the movable plate 2 in the accurate calibration position 41, ensuring that the circulating water pump can stably maintain the calibration state during operation, thus completing the entire calibration process.
[0043] In the embodiments of this utility model, please refer to Figure 2 The adjusting rod 31 is a threaded rod, and the horizontal adjusting assembly 3 also includes:
[0044] Guide sleeve 32 is fixedly mounted on frame 1, and threaded rod passes through guide sleeve 32 and abuts against movable plate 2; and
[0045] The locking nut 33 is threaded with the adjusting rod 31 to fix the position of the adjusting rod 31 after adjustment.
[0046] Specifically, the relative rotation between the threaded rod and the guide sleeve 32 allows the adjusting rod 31 to move precisely in a straight line. After adjustment, the locking nut 33, through its threaded engagement with the adjusting rod 31, securely fixes the position of the adjusting rod 31, preventing displacement of the movable plate 2 due to vibration or other external forces. The thread on the threaded rod can be a triangular thread, which has good self-locking properties and can better maintain positional stability after adjustment. The guide sleeve 32 can be fixed to the frame 1 by threaded connection, welding, or interference fit. The locking nut 33 can be secured by double nuts, spring washers, or nylon inserts.
[0047] In an embodiment of this utility model, the horizontal adjustment component 3 further includes a handwheel (not shown), which is fixedly disposed at the end of the adjustment rod 31 away from the movable plate 2. The handwheel can be made of metal or high-strength plastic, and can be a ring structure with a diameter that allows the operator to easily apply torque. Optionally, anti-slip textures can be designed on the rim of the handwheel to increase friction and prevent hand slippage during operation. Furthermore, angle markings, such as scale lines or numerical markings, can be provided on the circumference of the handwheel to facilitate the operator's understanding of the rotation angle of the handwheel, thereby achieving precise control over the movement distance of the adjustment rod 31.
[0048] In the embodiments of this utility model, please refer to Figure 1 The circulating water pump calibration device 100 also includes a calibration plate 4, which has a calibration position 41. The calibration plate 4 is located inside the water pump cylinder, ensuring that the calibration position 41 is concentric with the center of the water pump cylinder. The calibration plate 4 can be circular or square, and its shape and size should be adapted to the internal space of the water pump cylinder. For example, for a circular water pump cylinder, the calibration plate 4 can be designed as a circle with a diameter slightly smaller than the inner diameter of the cylinder to ensure that the calibration plate 4 can be stably installed inside the cylinder without interfering with the cylinder wall. The calibration position 41 can be a high-precision circular hole, groove, or protrusion at the center of the calibration plate 4. Taking a circular hole as an example, its diameter should match the diameter of the calibration rope to ensure that the calibration rope can be accurately inserted and positioned inside the circular hole. Placing the water pump shaft inside the cylinder according to the position of the calibration rope at this time ensures the concentricity of the water pump shaft with the center of the cylinder. On the calibration plate 4, the center of the calibration position 41 must be precisely coincident with the center of the water pump cylinder through precision machining and measurement.
[0049] In the embodiments of this utility model, please refer to Figure 1 The circulating water pump calibration device 100 also includes a conductive contact detector 5, which is located at the calibration position 41 and emits a warning signal when the calibration rope comes into contact with it. The conductive contact detector 5 can be a small spherical or cylindrical conductive probe, installed at the center of the calibration position 41. Its surface should be smooth and have good conductivity, and it is typically made of metals such as copper or aluminum. For example, a spherical probe can accommodate different angles of contact with the calibration rope, ensuring a reliable conductive connection. The conductive contact detector 5 can be connected to an external signal generator via a wire. When it comes into contact with the calibration rope (which is made of conductive material such as steel wire rope), a conductive circuit is formed, triggering the signal generator to emit an audible and visual warning or an electrical signal indication. In addition to wired transmission, a wireless signal transmission module, such as Bluetooth or Wi-Fi, can be used to send the contact signal to the operator's mobile device, further improving the flexibility and convenience of use.
[0050] In the embodiments of this utility model, please refer to Figure 1 and Figure 3 The circulating water pump calibration device 100 also includes a height adjustment component 6, which includes:
[0051] Support 61 is fixedly mounted on movable plate 2; and
[0052] The rope supply rod 62 is rotatably connected to the bracket 61. The rope supply rod 62 has a working end 621 extending above the centering hole 21. A calibration rope is wound on the working end 621 to supply calibration rope into the centering hole 21.
[0053] Specifically, the support 61 can adopt an inverted U-shaped structure, with its two vertical arms symmetrically fixed to the movable plate 2 by bolts or welding. The horizontal beam at the top is used to connect with the rope supply rod 62. The rope supply rod 62 and the support 61 can be rotatably connected by bearings or hinges. The calibration rope at the working end 621 of the rope supply rod 62 can be wound in a single layer or multiple layers. Single-layer winding ensures that the calibration rope will not cross-tangle during release, ensuring smooth output of the calibration rope; multi-layer winding is suitable for longer calibration ropes and can effectively save space. For example, a small spool structure is provided at the working end 621 of the rope supply rod 62. The calibration rope is tightly wound in a single layer on the spool, and the winding length of the calibration rope is controlled by limiting the width of the spool.
[0054] In the embodiments of this utility model, please refer to Figure 3 The height adjustment assembly 6 also includes a drive rod 63, which is located at the other end of the rope supply rod 62 and is perpendicular to it. The drive rod 63 is typically a rigid member, made of solid or hollow metal. The drive rod 63 and the rope supply rod 62 are vertically connected and fixed by welding, bolting, or pin connection. An operating handle can be provided at the end of the drive rod 63. The handle can be curved and covered with a non-slip rubber layer to allow the operator to grip it better when applying force and reduce hand fatigue.
[0055] In the embodiments of this utility model, please refer to Figure 3 The circulating water pump calibration device 100 also includes a counterweight 7, which is located at the end of the calibration rope and inside the pump cylinder. The counterweight 7 can be cylindrical, spherical, or conical, and its interior can be hollow, allowing for fine-tuning of the weight by adding or removing internal weights. For example, an opening / closing door can be provided on the side of the counterweight 7, secured with bolts, to facilitate adding or removing weights. The counterweight 7 can be tied to the calibration rope or connected using other fixed methods.
[0056] In the embodiments of this utility model, please refer to Figure 3The circulating water pump calibration device 100 also includes a hook 8, which connects the counterweight 7 and the calibration rope. The hook 8 is designed in the shape of a "?", "J", or "S" to facilitate hooking and prevent slippage. The upper end of the "?"-shaped hook 8 is fixed to the calibration rope, and the lower end hooks the counterweight 7; its curved portion effectively prevents the counterweight 7 from slipping off the hook 8. Furthermore, the counterweight 7 may have one or more hanging holes for connection with the hook 8. The shape and size of the hanging holes should match the hook portion of the hook 8 to ensure a secure and reliable connection.
[0057] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of protection of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present utility model.
Claims
1. A circulating water pump calibration device, characterized in that, The circulating water pump calibration device includes: The frame is mounted above the pump cylinder; A movable plate, movably mounted on the frame, has a centering hole for the calibration rope to pass through; and A plurality of horizontal adjustment components are provided, and the plurality of horizontal adjustment components are spaced apart on the frame. Each horizontal adjustment component includes an adjustment rod that abuts against the movable plate. The position of the movable plate on the frame is adjusted by changing the extension length of the adjustment rod until the calibration rope coincides with the center line of the water pump cylinder.
2. The circulating water pump calibration device as described in claim 1, characterized in that, The movable plate is a square plate, and at least one horizontal adjustment component is provided on each of the four periphery of the square plate.
3. The circulating water pump calibration device as described in claim 2, characterized in that, The adjusting rod is a threaded rod, and the horizontal adjusting assembly further includes: A guide sleeve is fixedly mounted on the frame, and the threaded rod passes through the guide sleeve and abuts against the movable plate; and A lock nut, threadedly engaged with the adjusting rod, is used to fix the position of the adjusting rod after adjustment.
4. The circulating water pump calibration device as described in claim 1, characterized in that, The leveling assembly also includes a handwheel, which is fixedly located at the end of the adjusting rod away from the movable plate.
5. The circulating water pump calibration device as described in claim 1, characterized in that, The circulating water pump calibration device further includes a calibration plate with a calibration position. The calibration plate is located inside the water pump cylinder so that the calibration position is concentric with the center of the water pump cylinder.
6. The circulating water pump calibration device as described in claim 5, characterized in that, The circulating water pump calibration device also includes a conductive contact detector, which is located at the calibration position and will emit a warning signal when the calibration rope comes into contact with the conductive contact detector.
7. The circulating water pump calibration device as described in claim 1, characterized in that, The circulating water pump calibration device further includes a height adjustment component, which comprises: The bracket is fixedly mounted on the movable plate; and A rope supply rod is rotatably connected to the bracket, the rope supply rod having a working end extending above the centering hole, the working end having the calibration rope wound around it to supply the calibration rope into the centering hole.
8. The circulating water pump calibration device as described in claim 7, characterized in that, The height adjustment assembly also includes a drive rod, which is located at the other end of the rope supply rod and is perpendicular to the rope supply rod.
9. The circulating water pump calibration device as described in any one of claims 1 to 8, characterized in that, The circulating water pump calibration device also includes a counterweight, which is located at the end of the calibration rope and inside the water pump cylinder.
10. The circulating water pump calibration device as described in claim 9, characterized in that, The circulating water pump calibration device also includes a hook that connects the counterweight and the calibration rope.