Portable deep-well pump shaft head height measuring device

Abstract

The utility model provides a portable deep-well pump shaft head height measuring device, which relates to the technical field of deep-well pump shaft head measurement, and comprises a concave ruler seat, the bottom surface of which is a finish machining plane and is used for stably fitting the end surface of a motor shaft head and providing reference support; the dial indicator is vertically mounted in the middle of the concave ruler seat through a threaded fastener, and a measuring head end of the dial indicator is provided with a replaceable flat-head ruler head which is used for directly contacting with the end face of the shaft head to be measured; the height of the standard proofreading block is consistent with a theoretical design value, and the standard proofreading block is used for quickly calibrating and zeroing the dial indicator before measurement and ensuring the detection precision, and is used for solving the technical problems that a special measuring tool for the inclined end face of the shaft head of the deep-well pump is lacked at present, a conventional method depends on manual operation, the precision and the consistency are difficult to ensure and the efficiency is relatively low.

Description

Technical Field

[0001] This utility model mainly relates to the field of deep well pump shaft head measurement technology, specifically to a portable deep well pump shaft head height measuring device. Background Technology

[0002] The height of the shaft head to the upper end face of the deep well pump motor has strict requirements; exceeding the tolerance will seriously affect the flow performance and service life. Traditionally, a depth gauge is used for measurement, but due to the inclination of the shaft end face, the extension and amplification effect of the inclination surface leads to large measurement errors and low measurement efficiency, making it difficult to meet production quality inspection requirements.

[0003] Currently, there is a lack of dedicated measuring tools for inclined end faces. Conventional methods rely on manual operation, which makes it difficult to guarantee accuracy and consistency and is inefficient. There is an urgent need for a high-efficiency and accurate dedicated testing device to solve this problem.

[0004] It should be noted that the above content falls within the scope of technical knowledge of those skilled in the art. Due to the vast and complex nature of the technical content in this field, the above content of this application does not necessarily constitute prior art. Utility Model Content

[0005] 1. The technical problem to be solved by the utility model:

[0006] This utility model provides a portable deep well pump shaft head height measuring device to solve the technical problems existing in the background art.

[0007] 2. Technical Solution:

[0008] To achieve the above objectives, the technical solution provided by this utility model is: a portable deep well pump shaft head height measuring device, comprising...

[0009] The concave ruler base has a precision-machined flat bottom surface, which is used to stably fit the end face of the motor shaft and provide reference support.

[0010] The dial indicator is vertically mounted in the middle of the concave ruler base by threaded fasteners. Its measuring head is equipped with a replaceable flat-head ruler for direct contact with the end face of the shaft being measured.

[0011] The standard calibration block, whose height is consistent with the theoretical design value, is used to quickly calibrate the dial indicator to zero before measurement to ensure detection accuracy;

[0012] In this embodiment, the standard calibration block is first placed on a horizontal platform. Then, the bottom surface of the concave ruler base is placed against the upper surface of the calibration block. The dial indicator is adjusted so that the probe contacts the calibration block and is compressed by 1-2 mm before being locked in place. Subsequently, the dial indicator dial is rotated to zero on the concave ruler base for calibration. During actual measurement, the entire device is moved to the end face of the motor shaft being measured, with the bottom surface of the concave ruler base completely in contact with the peripheral end face of the shaft. At this point, the dial indicator reading is the deviation of the actual height of the shaft from the standard value. This device effectively eliminates end face tilt error through three-point contact measurement, achieving a measurement accuracy of ±0.02 mm. A single person can operate the device for a single measurement in no more than 10 seconds, making it convenient and efficient.

[0013] Furthermore, the top of the concave ruler base is provided with a horizontal calibration mechanism, which includes a circular magnetic suction hole opened on one side of the ruler base and a detachable spirit level magnetically connected thereto.

[0014] Furthermore, the circular magnetic suction hole has placement grooves on both sides.

[0015] Furthermore, it also includes a portable packaging box with openings on the top and sides, and an L-shaped protective cover that can be detachably connected to the openings. The dial indicator and the standard calibration block are placed inside the portable packaging box, and the inner wall of the portable packaging box is provided with sponge adhesion.

[0016] Furthermore, the portable packaging box has symmetrical threaded holes at the top and side openings, and the L-shaped protective cover is connected to the threaded holes by screws. The L-shaped protective cover is made of transparent acrylic material.

[0017] Furthermore, the bottom of the portable packaging box is provided with a threaded protrusion, and the bottom of the standard calibration block is provided with a threaded groove at the corresponding position, and the threaded groove is connected to the threaded protrusion.

[0018] Furthermore, the portable packaging box has symmetrical positioning grooves on both sides, and concave support blocks are symmetrically provided at the bottom of the portable packaging box. Wedge-shaped positioning blocks are provided on both sides of the concave ruler base to match and connect with the positioning grooves, and the bottom is matched and connected with the concave support blocks. The side wall of the portable packaging box has symmetrical sliding grooves, and the sliding grooves are slidably connected to L-shaped limiting blocks.

[0019] 3. Beneficial effects:

[0020] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0021] This utility model is reasonably designed. Through the combination of a concave ruler base and a dial indicator, it adopts a three-point contact measurement principle, which effectively eliminates the error caused by the tilt of the shaft end face in traditional measurement, improves the measurement accuracy to ±0.02mm, and shortens the single measurement time to within 10 seconds, significantly improving the detection efficiency and accuracy.

[0022] Secondly, the innovative modular storage system gives the device excellent portability and protection. All components can be quickly disassembled and positioned, making it particularly suitable for field operations and solving the industry pain point of easily damaged precision measuring tools.

[0023] Finally, the overall design balances functionality and economy. Multiple safeguards, such as standard calibration block calibration and bubble level monitoring, ensure measurement reliability, while details such as transparent protective cover and anti-slip silicone pads further enhance the product's lifespan and user experience, making it a product with significant market promotion value.

[0024] It should be noted that the structures not described in this utility model are the same as or can be implemented using existing technology, and will not be elaborated here, as they do not involve the design points and improvement directions of this utility model. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of this utility model;

[0026] Figure 2 This utility model Figure 1 Enlarged schematic diagram of the structure at point A;

[0027] Figure 3 This is a schematic diagram of the portable packaging box structure of this utility model;

[0028] Figure 4 This is a schematic diagram of the internal structure of the portable packaging box of this utility model.

[0029] Figure label:

[0030] 1. Concave ruler base; 2. Dial indicator; 3. Flat-head ruler; 4. Standard calibration block; 5. Circular magnetic hole; 51. Placement groove; 6. Spirit bubble; 7. Portable packaging box; 71. L-shaped protective cover; 72. Threaded hole; 73. Threaded protrusion; 74. Positioning groove; 75. Concave support block; 76. Wedge-shaped positioning block; 77. Sliding groove; 78. L-shaped limit block. Detailed Implementation

[0031] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the utility model will be more thorough and complete.

[0032] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "fixed," "provided with," and "located in" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] It should be noted that structures not described in this invention do not involve the design points and improvement directions of this invention, and can all be achieved using existing technologies known to those skilled in the art.

[0036] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0037] See attached document Figure 1-4 A portable deep well pump shaft head height measuring device, comprising:

[0038] The concave ruler base 1 has a precision-machined flat bottom surface, which is used to stably fit the end face of the motor shaft and provide a reference support;

[0039] The dial indicator 2 is vertically mounted in the middle of the concave ruler base 1 by threaded fasteners. Its measuring head end is equipped with a replaceable flat ruler head 3 for direct contact with the end face of the shaft being measured.

[0040] Standard calibration block 4, whose height is consistent with the theoretical design value, is used to quickly calibrate dial indicator 2 to zero before measurement to ensure detection accuracy;

[0041] In this embodiment, the standard calibration block 4 is first placed on a horizontal platform. Then, the bottom surface of the concave ruler base 1 is placed against the upper surface of the calibration block. The dial indicator 2 is adjusted so that the probe contacts the calibration block and is compressed by 1-2 mm before being locked in place. Subsequently, the dial of the dial indicator 2 is rotated to zero on the concave ruler base 1 for calibration. During actual measurement, the entire device is moved to the end face of the motor shaft being measured, and the bottom surface of the concave ruler base 1 is completely in contact with the peripheral end face of the shaft. At this time, the reading of the dial indicator 2 is the deviation of the actual height of the shaft from the standard value. This device effectively eliminates the end face tilt error through a three-point contact measuring ruler base with two feet and a dial indicator probe. The measurement accuracy can reach ±0.02 mm, and the single-person operation and single measurement time does not exceed 10 seconds, making it convenient and efficient.

[0042] The concave ruler base 1 is provided with a horizontal calibration mechanism at its top. The mechanism includes a circular magnetic suction hole 5 opened on one side of the ruler base and a detachable level bubble 6 magnetically connected thereto. In this embodiment, when measuring the shaft head of a special deep well pump with high requirements for levelness, the level status of the ruler base can be monitored in real time through the level bubble 6 to ensure that the bottom surface of the ruler base and the end face of the shaft head remain parallel during the measurement process, thereby further improving the measurement accuracy.

[0043] The circular magnetic hole 5 has placement grooves 51 on both sides to facilitate the assembly and disassembly of the spirit level 6.

[0044] It also includes a portable packaging box 7, which has openings on the top and sides. An L-shaped protective cover 71 is detachably connected to the opening. The dial indicator 2 and the standard calibration block 4 are placed inside the portable packaging box 7. The inner wall of the portable packaging box 7 is provided with sponge adhesion. In this embodiment, in order to facilitate the carrying of this device, a portable packaging box is provided. When going out to work, the dial indicator 2 and the standard calibration block 4 can be carried, and it can also play a protective role.

[0045] The portable packaging box 7 has symmetrical threaded holes 72 at the top and side openings. The threaded holes 72 are connected to the L-shaped protective cover 71 by screws. The L-shaped protective cover 71 is made of transparent acrylic material, which not only provides protection but also facilitates observation of the contents inside the box. The L-shaped protective cover 71 is connected by screws for easy disassembly and assembly. It should be noted that the L-shaped protective cover 71 can also be connected to the portable packaging box 7 in other detachable ways.

[0046] The portable packaging box 7 has a threaded protrusion 73 at the bottom, and the standard calibration block 4 has a threaded groove at the corresponding position at the bottom. The threaded groove is connected to the threaded protrusion 73. When it needs to be stored, the standard calibration block 4 can be screwed into the threaded protrusion 73. When it needs to be taken out, the standard calibration block 4 can be unscrewed.

[0047] The portable packaging box 7 has symmetrical positioning grooves 74 on both sides, and the positioning grooves 74 are lined with rubber. The bottom of the portable packaging box 7 has symmetrical concave support blocks 75, and the surface of the concave support blocks 75 is attached with anti-slip silicone pads. The concave ruler base 1 has wedge-shaped positioning blocks 76 on both sides that match and connect with the positioning grooves 74, and the bottom of the wedge-shaped ruler base 1 matches and connects with the concave support blocks 75. The side walls of the portable packaging box 7 have symmetrical sliding grooves 77, and the sliding grooves 77 are slidably connected to L-shaped limiting blocks 78. In this embodiment, when storing the concave ruler base 1, the concave ruler base 1 is pushed into the positioning grooves 74 and concave support blocks 75 from the side of the portable packaging box 7. The L-shaped limiting blocks 78 are then pushed downwards to limit the concave ruler base 1. There is a damping force between the L-shaped limiting blocks 78 and the sliding grooves 77, which improves the stability during limiting and thus protects and limits the concave ruler base 1, making it convenient to carry when going out.

[0048] The above-described embodiments are merely illustrative of certain implementations of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A portable deep well pump shaft head height measuring device characterized by: include The concave ruler base (1) has a precision-machined flat bottom surface, which is used to stably fit the end face of the motor shaft and provide a reference support; The dial indicator (2) is vertically installed in the middle of the concave ruler base (1) by threaded fasteners. Its measuring head end is equipped with a replaceable flat ruler head (3) for direct contact with the end face of the shaft being measured. The standard calibration block (4) has the same height as the theoretical design value and is used to quickly calibrate the dial gauge (2) to zero before measurement to ensure detection accuracy.

2. A portable deep well pump shaft head height measuring device according to claim 1, characterized in that: The concave ruler base (1) is provided with a horizontal calibration mechanism at the top. The mechanism includes a circular magnetic suction hole (5) opened on one side of the ruler base and a detachable spirit level (6) magnetically connected thereto.

3. A portable deep well pump shaft head height measuring device according to claim 2, characterized in that: The circular magnetic hole (5) has placement grooves (51) on both sides.

4. The portable deep-well pump shaft head height measuring device of claim 1, wherein: It also includes a portable packaging box (7), which has openings on the top and sides, and an L-shaped protective cover (71) that can be detachably connected to the openings. The dial indicator (2) and the standard calibration block (4) are placed inside the portable packaging box (7), and the inner wall of the portable packaging box (7) is provided with sponge adhesion.

5. A portable deep well pump shaft head height measuring device as claimed in claim 4, wherein: The portable packaging box (7) has symmetrical threaded holes (72) at the top and side openings. The threaded holes (72) are connected to the L-shaped protective cover (71) by screws. The L-shaped protective cover (71) is made of transparent acrylic material.

6. A portable deep well pump shaft head height measuring device as claimed in claim 4, wherein: The portable packaging box (7) has a threaded protrusion (73) at the bottom, and the standard calibration block (4) has a threaded groove at the corresponding position at the bottom, and the threaded groove is connected to the threaded protrusion (73).

7. A portable deep well pump shaft head height measuring device as claimed in claim 4, wherein: The portable packaging box (7) has symmetrical positioning grooves (74) on both sides. The portable packaging box (7) has symmetrical concave support blocks (75) at the bottom. The concave ruler (1) has wedge-shaped positioning blocks (76) on both sides that match and connect with the positioning grooves (74). The bottom of the wedge-shaped ruler (1) matches and connects with the concave support blocks (75). The portable packaging box (7) has symmetrical sliding grooves (77) on the side wall. The sliding grooves (77) are slidably connected to L-shaped limiting blocks (78).

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