Measuring device for sand setting nozzle of hydrocyclone

Abstract

The utility model relates to a hydrocyclone sand setting nozzle measuring device which comprises a main body shell and a lead screw, the lead screw is transversely and rotatably arranged in the main body shell through rotating shafts at the two ends, the lead screw is connected with a moving plate through a ball nut, and the outer edge of the moving plate is attached to the inner wall of the main body shell. The movable plate is vertically and symmetrically connected with a plurality of guide columns parallel to the lead screw, the other ends of the guide columns slidably penetrate through the main body shell and then are connected to a guide plate, and a first probe is installed on the outer side of the guide plate; a driving device and a dustproof shell are arranged on the end, away from the guide plate, of the body shell, the output end of the driving device is connected to the lead screw, and a second probe is installed on the outer side of the dustproof shell. According to the measuring device, the two probes are attached to the inner wall of the sand setting nozzle to measure the inner diameter of the sand setting nozzle in a high-precision mode, meanwhile, the sliding groove marked with vernier scales and the sliding rod are combined to further verify the measuring results of the two probes, the measuring accuracy is improved, the abrasion condition of the sand setting nozzle can be accurately and effectively evaluated, and guidance is provided for maintenance or replacement of the sand setting nozzle.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of hydrocyclone measurement technology, and specifically relates to a hydrocyclone grit nozzle measuring device. BACKGROUND

[0002] As a kind of solid-liquid separation equipment, hydrocyclone can be used in sewage treatment, mineral classification, ore pulp concentration, desliming and other aspects.For example, when sewage is treated, it uses the centrifugal force generated by liquid in rotating flow to separate solid particles from liquid, thereby improving the quality and purity of liquid;When mineral classification is carried out, materials are sorted by using the density difference between minerals, and fine particles with small density are discharged from overflow port, and coarse particles with large density are discharged from grit nozzle, so that classification is realized.However, the grit nozzle of hydrocyclone will be worn or damaged under long-term use and particle impact, which will affect the classification effect or cause equipment failure if not handled in time.It is beneficial to take preventive maintenance measures, such as repairing or replacing grit nozzle, to avoid equipment damage and downtime and reduce maintenance cost by measuring the wear degree of grit nozzle regularly.

[0003] The existing grit nozzle measuring tool has low precision, inaccurate measurement results, cannot timely discover and effectively evaluate the wear condition of grit nozzle, especially cannot fully meet the application scenarios with high measurement accuracy requirements;Moreover, the measurement of grit nozzle often needs to be operated in narrow or difficult-to-access space, and the operation of measuring tool is inconvenient or the use environment is limited, making measurement difficult.The existing grit nozzle measuring tool also has the shortcomings of inconvenient self-calibration and complex maintenance. UTILITY MODEL CONTENTS

[0004] In view of the above problems, the utility model provides a hydrocyclone grit nozzle measuring device, which can quickly and accurately measure the inner diameter of hydrocyclone grit nozzle, timely grasp the wear condition and take protective measures.

[0005] The specific technical scheme of the utility model is: a hydrocyclone grit nozzle measuring device, comprising a main body shell and a lead screw, the lead screw is transversely rotatably arranged in the main body shell through the rotating shaft at both ends, a moving plate is connected to the lead screw through a ball nut, the moving plate is attached to the inner wall of the main body shell, a plurality of guide columns parallel to the lead screw are symmetrically connected to the moving plate, the other end of the guide column slides through the main body shell and is connected to the guide plate, a first probe is installed on the outer side of the guide plate;A driving device and a dustproof shell are arranged on the main body shell away from the guide plate, the output end of the driving device is connected to the lead screw, the dustproof shell is arranged outside the driving device, and a second probe is installed on the outer side of the dustproof shell.

[0006] Further preferably, a slide groove is arranged on one side of the main body shell, a vernier scale is marked on the outside of the slide groove, a slide rod is arranged in the slide groove, and one end of the slide rod away from the slide groove is connected to the side edge of the guide plate.

[0007] Further preferably, a limiting hole is arranged at the top end of the screw rod rotation shaft away from the driving device, and a limiting column corresponding to the limiting hole is arranged on the inside of the guide plate.

[0008] Further preferably, the driving device comprises a large belt pulley and a small belt pulley, the large belt pulley is connected to the rotation shaft of the screw rod, the large belt pulley and the small belt pulley are connected through a belt, the small belt pulley is connected to the hand wheel through a connecting shaft, and a fixed plate is arranged between the small belt pulley and the hand wheel, and the other end of the fixed plate is connected to the bottom of the dustproof shell.

[0009] Further preferably, a handle is arranged on the hand wheel.

[0010] Further preferably, a gasket is arranged between the large belt pulley and the main body shell, between the small belt pulley and the fixed plate, between the fixed plate and the hand wheel, and between the two ends of the screw rod and the main body shell.

[0011] The measurement device utilizes the ball screw to drive two probes to adhere to the inner walls on the two sides of the sand trap nozzle, the high-precision probes are used to measure the inner diameter of the sand trap nozzle, the measurement results of the two probes are further verified in combination with the slide groove and the slide rod marked with the vernier scale, the measurement accuracy is improved, the wear condition of the sand trap nozzle is accurately and effectively evaluated, and guidance is provided for the maintenance or replacement of the sand trap nozzle. Meanwhile, the limiting hole and the limiting column are arranged to enable the device to restore the initial position at any time, the device is calibrated by taking the initial position as a calibration base point, the measurement accuracy and reliability are ensured, the maintenance process of the measurement device is simplified, and the operation efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 FIG. 1 is a structural schematic view of a sand trap nozzle measurement device of a hydrocyclone according to the embodiment;

[0013] Figure 2 FIG. 3 is a lateral cross-sectional view of the sand trap nozzle measurement device of the hydrocyclone; Figure 1

[0014] Figure 3 FIG. 6 is a bottom view of the sand trap nozzle measurement device of the hydrocyclone; Figure 1

[0015] Figure 4 FIG. 9 is a left side cross-sectional view of the sand trap nozzle measurement device of the hydrocyclone; Figure 1

[0016] Figure 5 FIG. 12 is a right view of the sand trap nozzle measurement device of the hydrocyclone; Figure 1 FIG. 13 is a perspective view of the sand trap nozzle measurement device of the hydrocyclone.​​​

[0017] In the figure: 1-main body shell; 2-screw; 3-movable plate; 4-guide column; 5-guide plate; 6-first probe; 7-driving device, 71-large pulley, 72-small pulley, 73-belt, 74-connecting shaft, 75-handwheel, 76-fixed plate, 77-handle; 8-dustproof shell; 9-second probe; 10-slide groove; 11-slide rod; 12-limiting hole; 13-limiting column. DETAILED DESCRIPTION

[0018] In order to make the technical problems and technical solutions solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0019] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0020] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integrated connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0021] like Figures 1 to 3 As shown, the present embodiment provides a hydrocyclone sand nozzle measuring device, including a main body shell 1 and a screw 2, the screw 2 is arranged in the main body shell 1 by rotating horizontally through the rotating shafts at both ends, the screw 2 is connected to a movable plate 3 through a ball nut, the outer edge of the movable plate 3 is attached to the inner wall of the main body shell 1, and the movable plate 3 is symmetrically connected to a plurality of guide columns 4 parallel to the screw 2 above and below, and the other end of the guide column 4 slides through the main body shell 1 and is connected to the guide plate 5, and a first probe 6 is installed on the outside of the guide plate 5; a driving device 7 and a dust cover 8 are provided on the main body shell 1 away from one end of the guide plate 5, the output end of the driving device 7 is connected to the screw 2, the dust cover 8 is arranged outside the driving device 7, and a second probe 9 is installed on the outside of the dust cover 8.

[0022] like Figure 1 Figure 5As shown, the main housing 1 and the dust cover 8 of this embodiment are square, and there are four guide posts 4 slidably provided on the main housing 1 and surrounding the lead screw 2. Of course, the shapes of the main housing 1 and the dust cover 8 are not limited to those of this embodiment, and may also be circular or other shapes.

[0023] like Figures 1 to 5 As shown, the drive device 7 includes a large pulley 71 and a small pulley 72. The large pulley 71 is connected to the rotating shaft of the lead screw 2. The large pulley 71 and the small pulley 72 are connected by a belt 73. The small pulley 72 is connected to a handwheel 75 via a connecting shaft 74. A fixing plate 76 is also provided between the small pulley 72 and the handwheel 75. The other end of the fixing plate 76 is connected to the bottom of the dust cover 8. To facilitate the rotation of the handwheel 75, a handle 77 is provided on the handwheel 75. Of course, the specific structure of the drive device is not limited to the belt drive described in this embodiment. Gear drive, servo motor drive, etc. can also be used to drive the lead screw to rotate.

[0024] To measure the inner diameter of a hydrocyclone's sand trap, the device is placed inside the sand trap, with the second probe 9 in contact with one inner wall of the sand trap. Handle 77 is rotated, driving handwheel 75. This, in turn, drives small pulley 72 via connecting shaft 74. The rotational force of small pulley 72 is then transmitted to large pulley 71 via belt 73, driving large pulley 71 to rotate. Because large pulley 71 is connected to the shaft of lead screw 2, it drives lead screw 2. Driven by the ball nut, movable plate 3 moves linearly along lead screw 2. This moves the guide post 4 connected to it horizontally, which in turn drives the guide plate 5 connected to it horizontally, moving it away from the main housing 1. When the first probe 6 outside the guide plate 5 contacts the other inner wall of the sand trap, handle 77 is stopped. At this point, the first and second probes 6 and 7 are respectively in contact with the inner walls of the sand trap. The value read by the data reading system connected to the two probes is the inner diameter of the sand trap.

[0025] Compared with traditional measuring tools, the Caitong probe of this measuring device has higher measurement accuracy, and it can be configured with existing high-precision probes according to the measurement accuracy requirements to further improve the measurement accuracy.

[0026] As a preferred implementation of this embodiment, in order to verify the measurement accuracy of the probe, Figure 1As shown, the side of the main body shell 1 is also provided with a sliding slot 10, the outer side of the sliding slot 10 is marked with a vernier scale, the sliding slot 10 is slidably provided with a sliding rod 11, the end of the sliding rod 11 away from the sliding slot 10 is connected to the side edge of the guide plate 5. Thus, during measurement, the sliding rod 11 will move together with the guide plate 5 in the direction away from the main body shell 1, the distance from the starting position of the sliding rod 11 away from the sliding slot 10 can be read from the vernier scale on the sliding slot 10, and the distance plus the length of the device itself is the inner diameter of the sand nozzle. By comparing the result with the results measured by the two probes, the accuracy of the measurement of the two probes can be preliminarily verified.

[0027] As a preferred embodiment of the present embodiment, in order to facilitate the self-calibration of the device, a limiting hole 12 is formed at the top end of the rotating shaft of the lead screw 2 away from the driving device 7, and a limiting column 13 corresponding to the limiting hole 12 is arranged on the inner side of the guide plate 5.

[0028] When the limiting column 13 is completely inserted into the limiting hole 12, the device is in the initial position, and the reading value is the initial length. After the device is used for many times, the limiting column 13 is completely inserted into the limiting hole 12 to restore the initial position, if the reading value is equal to the initial length, it indicates that the device itself is not deviated and does not need to be calibrated; if the reading value is not equal to the initial length, it indicates that the device itself is deviated and needs to be calibrated, and the difference between the reading value and the initial length is the calibration value. By arranging the initial position on the device itself, the self-calibration of the measuring device can be greatly facilitated, the measurement accuracy and reliability of the measuring device can be ensured, and the maintenance process of the measuring device can be simplified and the work efficiency can be improved.

[0029] In addition, in order to optimize the connection effect between the components, a gasket is arranged between the large pulley 71 and the main body shell 1, between the small pulley 72 and the fixed plate 76, between the fixed plate 76 and the hand wheel 75, and between the lead screw 2 and the main body shell 1.

[0030] The utility model is described in detail through specific and preferred embodiments, but those skilled in the art should understand that the utility model is not limited to the above-mentioned embodiments, and any modification, equivalent replacement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A hydrocyclone underflow measuring device characterised in that: Including main body shell (1) and screw rod (2), the screw rod (2) is transversely rotatable by the rotation shaft of both ends and is arranged in the main body shell (1), the screw rod (2) is connected with the moving plate (3) through the ball nut, the moving plate (3) outer along fits the inner wall of main body shell (1), the moving plate (3) is symmetrically connected with multiple guide posts (4) parallel to the screw rod (2) up and down, the other end of the guide post (4) is connected to the guide plate (5) after sliding through the main body shell (1), the outer side of the guide plate (5) is provided with the first probe (6); The main body shell (1) is provided with driving device (7) and dustproof shell (8) on the end away from the guide plate (5), the output end of the driving device (7) is connected to the screw rod (2), the dustproof shell (8) is arranged outside the driving device (7), the outer side of the dustproof shell (8) is provided with the second probe (9).

2. A measuring device for a grit nozzle of a hydrocyclone according to claim 1, characterized in that: The side surface of the main body shell (1) is also provided with a sliding groove (10), the outer side of the sliding groove (10) is marked with a vernier scale, the sliding groove (10) is provided with a sliding rod (11) inside, the end of the sliding rod (11) away from the sliding groove (10) is connected to the side edge of the guide plate (5).

3. A measuring device for a grit nozzle of a hydrocyclone according to claim 1 or 2, characterized in that: The rotation shaft top end of the screw rod (2) away from the driving device (7) is provided with a limiting hole (12), the inner side of the guide plate (5) is provided with a limiting column (13) corresponding to the limiting hole (12).

4. A measuring device for a grit nozzle of a hydrocyclone according to claim 3, characterized in that: The driving device (7) includes a large pulley (71) and a small pulley (72), the large pulley (71) is connected to the rotation shaft of the screw rod (2), the large pulley (71) and the small pulley (72) are connected through the belt (73), the small pulley (72) is connected with the hand wheel (75) through the connecting shaft (74); The small pulley (72) and the hand wheel (75) are also provided with a fixed plate (76), the other end of the fixed plate (76) is connected to the bottom of the dustproof shell (8).

5. A measuring device for a grit nozzle of a hydrocyclone according to claim 4, characterized in that: The hand wheel (75) is provided with a handle (77).

6. A measuring device for a grit nozzle of a hydrocyclone according to claim 4, characterized in that: The large pulley (71) and the main body shell (1), the small pulley (72) and the fixed plate (76), the fixed plate (76) and the hand wheel (75) and the both ends of the screw rod (2) and the main body shell (1) are all provided with a gasket.

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