Tool for adjusting and measuring center of booster pump rotor

Abstract

The utility model discloses a booster pump rotor center adjusting and measuring tool, and relates to the technical field of booster pumps, the booster pump rotor center adjusting and measuring tool comprises a fixing frame, a mounting frame and a dial indicator, the fixing frame is used for connecting a pump shaft of a booster pump; the mounting frame comprises a connecting rod and a mounting seat, the connecting rod is connected to the fixing frame, and the mounting seat is connected to the connecting rod and can be adjusted up and down relative to the connecting rod; the dial indicator is mounted on the mounting seat and can adjust the pitch angle relative to the connecting rod; according to the scheme, the fixing frame is connected to the pump shaft of the booster pump, the dial indicator is connected and fixed to the mounting base, the position of the dial indicator is adjusted by adjusting the height and the pitching angle of the mounting base relative to the fixing frame, and an operator can conveniently observe when measuring and adjusting the center of the rotor; the mounting and fixing stability of the dial indicator is guaranteed, the overall structure of the booster pump rotor center adjusting and measuring tool is simplified, and the convenience of measuring and adjusting the rotor center by an operator is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pre-pumps, in particular to a pre-pump rotor center adjustment and measurement tool. Background Art

[0002] Thermal power plants are affected by the environment and the load of the units is limited. The pre-pump has a low water flow rate and serious pump shaft movement, which causes the temperature of the free end bearing of the pre-pump to be high, resulting in easy wear. Therefore, the bearing of the free end of the pre-pump needs to be replaced frequently. When replacing the bearing chamber of the free end of the pre-pump, it is necessary to re-drill the positioning pin hole and readjust the rotor center. How to measure the rotor center quickly and conveniently needs to be solved urgently. Utility Model Content

[0003] The main purpose of the utility model is to provide a front pump rotor center adjustment and measurement tool, which is intended to conveniently adjust and measure the rotor center when replacing the bearing chamber.

[0004] To achieve the above purpose, the utility model provides a pre-pump rotor center adjustment measurement tool, comprising:

[0005] A fixing frame, the fixing frame is used to connect the pump shaft of the front pump;

[0006] A mounting frame, the mounting frame comprising a connecting rod and a mounting seat, the connecting rod is connected to the fixing frame, and the mounting seat is connected to the connecting rod and can be raised and lowered relative to the connecting rod;

[0007] A dial indicator is mounted on the mounting seat and can adjust the pitch angle relative to the connecting rod.

[0008] In one embodiment, the mounting frame further includes a locking assembly, which includes a locking sleeve and a fastener. The locking sleeve is sleeved on the connecting rod and forms an opening. The fastener passes through both ends of the opening and can be rotated to adjust the size of the opening to fix the locking sleeve to the connecting rod. The mounting base is connected to the fastener.

[0009] In one embodiment, the locking assembly further includes an adjusting knob, and the adjusting knob is connected to an end of the fastener away from the mounting seat to rotate and adjust the size of the opening.

[0010] In one embodiment, the mounting seat includes a mounting rod and a connecting piece, the mounting rod passes through the fastener and can abut against the locking sleeve to limit position when the fastener adjusts the opening size, the connecting piece is connected to one end of the mounting rod, and the dial indicator is connected to the connecting piece.

[0011] In one embodiment, the front pump rotor center adjustment measuring tool also includes a limit member, which is sleeved on the fastener and arranged between the locking sleeve and the mounting rod, and the two ends of the limit member relative to the extension direction of the fastener are respectively abutted against the locking sleeve and the mounting rod.

[0012] In one embodiment, the connecting member is movably connected to the mounting rod so that the dial indicator can be clamped on the connecting member.

[0013] In one embodiment, the fixing frame includes a first fixing portion and a second fixing portion, the first fixing portion and the second fixing portion are enclosed and connected to the pump shaft of the pre-pump to achieve fixation, and the connecting rod is connected to the second fixing portion.

[0014] In one embodiment, the first fixing portion and the second fixing portion are semi-annular structures.

[0015] In one embodiment, the first fixing portion and the second fixing portion are fixedly connected by bolts.

[0016] In one embodiment, the second fixing portion is fixed to the connecting rod by welding.

[0017] The technical solution of the utility model connects the fixing frame to the pump shaft of the front pump, connects and fixes the dial indicator to the mounting seat, and adjusts the position of the dial indicator by adjusting the height and pitch angle of the mounting seat relative to the fixing frame, so as to facilitate observation by the operator when using the dial indicator to measure and adjust the rotor center. It not only ensures the stability of the installation and fixation of the dial indicator, but also simplifies the overall structure of the front pump rotor center adjustment measuring tool, facilitates assembly and disassembly, and improves the convenience for the operator to measure and adjust the rotor center. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0019] Figure 1 A schematic structural diagram of an embodiment of a front pump rotor center adjustment and measurement tool provided by the utility model;

[0020] Figure 2 for Figure 1 The front view in;

[0021] Figure 3 for Figure 1 A partial enlarged schematic diagram of the mounting frame.

[0022] Description of Figure Numbers:

[0023] 1000. Pre-pump rotor center adjustment measuring tool; 1. fixing frame; 11. first fixing part; 12. second fixing part; 2. mounting frame; 21. connecting rod; 22. mounting seat; 221. mounting rod; 222. connecting piece; 223. limiting piece; 23. locking assembly; 231. locking sleeve; 232. fastener; 233. adjusting knob.

[0024] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0027] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0028] Thermal power plants are affected by the environment and the load of the units is limited. The pre-pump has a low water flow rate and serious pump shaft movement, which causes the temperature of the free end bearing of the pre-pump to be high, resulting in easy wear. Therefore, the bearing of the free end of the pre-pump needs to be replaced frequently. When replacing the bearing chamber of the free end of the pre-pump, it is necessary to re-drill the positioning pin hole and readjust the rotor center. How to measure the rotor center quickly and conveniently needs to be solved urgently.

[0029] In order to solve the above problems, the utility model proposes a pre-pump rotor center adjustment measuring tool 1000, including a fixing frame 1, a mounting frame 2 and a dial indicator, the fixing frame 1 is used to connect the pump shaft of the pre-pump; the mounting frame 2 includes a connecting rod 21 and a mounting seat 22, the connecting rod 21 is connected to the fixing frame 1, and the mounting seat 22 is connected to the connecting rod 21 and can be raised and lowered relative to the connecting rod 21; the dial indicator is installed on the mounting seat 22, and the pitch angle can be adjusted relative to the connecting rod 21.

[0030] The technical solution of the utility model is that the fixing frame 1 is connected to the pump shaft of the pre-pump, and the dial indicator is connected and fixed to the mounting base 22. The position of the dial indicator is adjusted by adjusting the height and pitch angle of the mounting base 22 relative to the fixing frame 1, so as to facilitate the operator to observe when using the dial indicator to measure and adjust the rotor center. It not only ensures the stability of the installation and fixation of the dial indicator, but also simplifies the overall structure of the pre-pump rotor center adjustment measuring tool 1000, facilitates assembly and disassembly, and improves the convenience for the operator to measure and adjust the rotor center.

[0031] In an optional embodiment, in order to facilitate the fixing effect of the mounting seat 22, the mounting frame 2 further includes a locking assembly 23, the locking assembly 23 includes a locking sleeve 231 and a fastener 232, the locking sleeve 231 is sleeved on the connecting rod 21 and forms an opening, the fastener 232 passes through both ends of the opening, and can be rotated to adjust the size of the opening to fix the locking sleeve 231 to the connecting rod 21. Please refer to Figures 1 to 3The locking sleeve 231 is sleeved on the connecting rod 21 and extends in the circumferential direction of the connecting rod 21 to form two plate-like structures. An opening is formed between the two plate-like structures. The fastener 232 is passed through the two plate-like structures and locked to adjust the distance between the two plate-like structures, that is, to adjust the size of the opening, so that the mounting seat 22 is connected and fixed on the connecting rod 21 to achieve the installation and fixation of the dial indicator. Optionally, the fastener 232 can achieve the locking effect of the locking sleeve 231 by a snap-fit ​​fixing method, or can be tightened by a threaded connection. In this embodiment, the locking member achieves the extrusion and fixation of the two plate-like structures by threaded tightening. By setting a threaded connector 222 at one end of the fastener 232 away from the mounting seat 22, the threaded connector 222 is rotated to squeeze and lock the two plate-like structures, so that the locking sleeve 231 hugs the connecting rod 21 to achieve fixation. This achieves a detachable connection between the locking assembly 23 and the connecting rod 21, making it easy to adjust the installation height of the mounting base 22 on the connecting rod 21 through the locking assembly 23, thereby changing the installation position of the dial indicator relative to the pump shaft of the front pump, making it easier for the operator to observe during measurement.

[0032] Furthermore, in order to facilitate the fastener 232 to rotate and adjust the size of the opening of the lock sleeve 231, the locking assembly 23 also includes an adjustment knob 233, which is connected to the end of the fastener 232 away from the mounting seat 22 to rotate and adjust the size of the opening. Figure 1 and Figure 3 The adjusting knob 233 is passed through the fastener 232 and is threadedly connected to the fastener 232. The adjusting knob 233 is rotated to squeeze the opening of the lock sleeve 231 to lock the lock sleeve 231, thereby fixing the lock sleeve 231. The method of tightening by adjusting the knob 233 saves the operator effort when locking and opening the lock sleeve 231, thereby improving the convenience of operation for the operator.

[0033] In an optional embodiment, in order to facilitate the adjustment of the pitch angle of the dial indicator installation, the mounting seat 22 includes a mounting rod 221 and a connecting piece 222. The mounting rod 221 passes through the fastener 232 and can be abutted against the locking sleeve 231 when the fastener 232 adjusts the opening size. The connecting piece 222 is connected to one end of the mounting rod 221, and the dial indicator is connected to the connecting piece 222. Please refer to Figure 1 and Figure 3The mounting rod 221 penetrates the end of the fastener 232 away from the adjusting knob 233 in the horizontal direction, and by keeping the angle of the mounting rod 221 unchanged, the adjusting knob 233 is twisted to make the mounting rod 221 gradually approach the connecting rod 21 and abut against it to limit and lock it. In this way, the locking assembly 23 can be fixed on the connecting rod 21, and the mounting rod 221 can be fixedly connected to the fastener 232. The dial indicator is installed on the connecting piece 222 at one end of the mounting rod 221. The initial placement angle of the mounting rod 221 is adjusted to adjust the pitch angle of the dial indicator. In this way, the position of the dial indicator can be adjusted at any time, and the adjustment method is simple and convenient for the operator to operate.

[0034] Furthermore, in order to improve the stability of the contact between the mounting rod 221 and the locking sleeve 231, the front pump rotor center adjustment measuring tool 1000 further includes a stopper 223, which is sleeved on the fastener 232 and disposed between the locking sleeve 231 and the mounting rod 221. The two ends of the stopper 223 relative to the extension direction of the fastener 232 are respectively in contact with the locking sleeve 231 and the mounting rod 221. Figure 1 and Figure 3 The limiting member 223 is sleeved on the fastener 232, and the plane on one side of the limiting member 223 abuts against the plane of the extended part of the locking sleeve 231, and a groove is formed on the other side to abut against the circumferential arc surface of the mounting rod 221. In this way, the connection with the locking sleeve 231 and the mounting rod 221 is achieved by surface contact between the two sides of the limiting member 223, which improves the stability of the connection between the locking sleeve 231 and the mounting rod 221 and is more conducive to the fixation of the locking assembly 23 and the mounting rod 221.

[0035] In an optional embodiment, in order to facilitate the installation of the dial gauge, the connecting member 222 is movably connected to the mounting rod 221 so that the dial gauge is clamped on the connecting member 222. Figure 3 A mounting rod 221 is passed through a rod structure with a thread and is screwed to the mounting rod 221. When installing the dial indicator, the dial indicator is clamped in the mounting hole enclosed by the connecting piece 222, and the rod structure is tightened to compress the connecting piece 222 to fix the dial indicator.

[0036] In an optional embodiment, in order to facilitate the connection and fixation of the fixing frame 1 on the pump shaft of the front pump, the fixing frame 1 includes a first fixing portion 11 and a second fixing portion 12, the first fixing portion 11 and the second fixing portion 12 are enclosed and connected to the pump shaft of the front pump to achieve fixation, and the connecting rod 21 is connected to the second fixing portion 12. By making the first fixing portion 11 and the second fixing portion 12 cooperate with each other to hold the pump shaft tightly, the fixing frame 1 is fixed on the pump shaft, so that the fixing frame 1 can be applied to pump shafts of different sizes, thereby improving the adaptability of the fixing frame 1. In addition, the connecting rod 21 is connected to the side of the second fixing portion 12 facing away from the first fixing portion 11, so as to facilitate the installation of a dial indicator on the connecting rod 21. Optionally, in order to improve the connection strength between the connecting rod 21 and the second fixing portion 12, the connecting rod 21 and the first fixing portion 11 are welded and fixed to avoid the shaking of the connecting rod 21 relative to the fixing frame 1, thereby affecting the overall stability of the mounting frame 2.

[0037] Optionally, the first fixing portion 11 and the second fixing portion 12 are fixedly connected by bolts. In the actual installation process, the first fixing portion 11 and the second fixing portion 12 can be connected by bonding or binding. In this embodiment, in order to improve the stability of the connection between the first fixing portion 11 and the second fixing portion 12 and to achieve the effect of easy disassembly and assembly, the connection between the two is achieved by bolts. Figures 1 to 3 The ends of the first fixing portion 11 and the second fixing portion 12 are both provided with connecting holes, and two connecting holes are respectively penetrated by bolts to be locked and fixed by nuts, thereby realizing the connection between the first fixing portion 11 and the second fixing portion 12.

[0038] Furthermore, in order to improve the matching effect between the fixing frame 1 and the pump shaft of the front pump, the first fixing portion 11 and the second fixing portion 12 are semi-annular structures. In the actual design process, the inner edges of the first fixing portion 11 and the second fixing portion 12 can be rectangular structures or arc structures. In this embodiment, in order to make the first fixing portion 11 and the second fixing portion 12 fully contact the outer circumference of the pump shaft, please refer to Figure 1 and Figure 2 By setting the first fixing portion 11 and the second fixing portion 12 as a semi-annular structure, the first fixing portion 11 and the second fixing portion 12 and the pump shaft can have a larger contact area in the circumferential direction, which not only ensures the stability of the fixing frame 1 installed on the pump shaft, but also avoids the first fixing portion 11 and the second fixing portion 12 from generating a large pressure on the pump shaft during fixation, thereby preventing the pump shaft from being damaged.

[0039] The above are only exemplary embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A front pump rotor center adjustment measurement tool, characterized in that: include: A fixing frame, the fixing frame is used to connect the pump shaft of the front pump; A mounting frame, the mounting frame comprising a connecting rod and a mounting seat, the connecting rod is connected to the fixing frame, and the mounting seat is connected to the connecting rod and can be raised and lowered relative to the connecting rod; A dial indicator is mounted on the mounting seat and can adjust the pitch angle relative to the connecting rod.

2. The pre-pump rotor center adjustment measuring tool according to claim 1, characterized in that: The mounting frame also includes a locking assembly, which includes a locking sleeve and a fastener. The locking sleeve is sleeved on the connecting rod and forms an opening. The fastener passes through both ends of the opening and can be rotated to adjust the size of the opening to fix the locking sleeve to the connecting rod. The mounting seat is connected to the fastener.

3. The pre-pump rotor center adjustment measuring tool according to claim 2, characterized in that: The locking assembly also includes an adjusting knob, which is connected to an end of the fastener away from the mounting seat to rotate and adjust the size of the opening.

4. The pre-pump rotor center adjustment measuring tool according to any one of claims 2 to 3, characterized in that: The mounting seat includes a mounting rod and a connecting piece. The mounting rod passes through the fastener and can abut against the locking sleeve to limit position when the fastener adjusts the opening size. The connecting piece is connected to one end of the mounting rod, and the dial indicator is connected to the connecting piece.

5. The pre-pump rotor center adjustment measuring tool according to claim 4, characterized in that: The front pump rotor center adjustment measuring tool also includes a limiter, which is sleeved on the fastener and arranged between the locking sleeve and the mounting rod. The two ends of the limiter relative to the extension direction of the fastener are respectively in contact with the locking sleeve and the mounting rod.

6. The pre-pump rotor center adjustment measuring tool according to claim 5, characterized in that: The connecting piece is movably connected to the mounting rod so that the dial indicator can be clamped on the connecting piece.

7. The pre-pump rotor center adjustment measuring tool according to claim 6, characterized in that: The fixing frame includes a first fixing portion and a second fixing portion, the first fixing portion and the second fixing portion are enclosed and connected to the pump shaft of the front pump to achieve fixation, and the connecting rod is connected to the second fixing portion.

8. The pre-pump rotor center adjustment measuring tool according to claim 7, characterized in that: The first fixing portion and the second fixing portion are semi-annular structures.

9. The pre-pump rotor center adjustment measuring tool according to claim 7, characterized in that: The first fixing portion and the second fixing portion are fixedly connected by bolts.

10. The pre-pump rotor center adjustment measuring tool according to claim 7, characterized in that: The second fixing portion is fixed to the connecting rod by welding.

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