Insertion type grinding fluid pump

Abstract

The present invention relates to an insertable grinding fluid pump, which comprises: a driving motor, a hollow socket installed on the driving motor, a liquid pump box installed on the socket, a transmission shaft passing through the socket and connected to the driving motor and the liquid pump box at both ends respectively, and an overflow channel is provided on the socket. The liquid pump box comprises an outer shell, a liquid inlet joint and an impeller installed on the outer shell. The outer shell is provided with a liquid outlet channel and a chamber is formed between the outer shell and the liquid inlet joint, and the impeller is located in the chamber. The transmission shaft passes through the outer shell and is connected to the impeller. An anti-wear sleeve and a reverse-rotation thread waterproof sleeve are mounted on the transmission shaft. The anti-wear sleeve is located above the reverse-rotation thread waterproof sleeve and is opposite to the overflow channel. The structure of the insertable grinding fluid pump is reasonable and easy to install. The anti-wear sleeve and the reverse-rotation thread waterproof sleeve have strong protection, good stability and long service life.

Description

Technical Field

[0001] The invention relates to the technical field of sandblasting, in particular to an insertion type grinding liquid pump applied to a precision liquid automatic sandblasting machine and a control system thereof. Background Art

[0002] In the sandblasting process of CNC blades, the requirements for sandblasting and passivation of the cutting edge increase accordingly with the increase in the use requirements of CNC blades. How to process and produce CNC blades stably and efficiently in mass production is a problem that has attracted much attention. Most traditional wet sandblasting machines use an external vertical grinding fluid pump installed outside the cabin. The grinding fluid pump has many connecting pipes during installation, and the structure is complex and the installation is cumbersome. There are often problems such as insufficient pump flow and easy damage to accessories. Since the grinding fluid pump is an important component of the whole machine, its working condition directly affects the use of the whole machine. Whether the grinding fluid pump can operate conveniently, efficiently and stably has always been an urgent problem to be solved by the liquid automatic sandblasting machine for sandblasting and passivation cleaning of CNC blade edges. Summary of the invention

[0003] Based on this, it is necessary to provide an inserted grinding liquid pump with good stability, long service life and easy installation and use to address the problems existing in the grinding liquid pump in sandblasting cleaning.

[0004] An insertion type grinding fluid pump comprises: a driving motor, a hollow socket mounted on the driving motor, a liquid pump box mounted on the socket, and a transmission shaft extending from the socket and connected to the driving motor and the liquid pump box at both ends; an overflow channel is provided on the socket; the liquid pump box comprises an outer shell, a liquid inlet joint and an impeller mounted on the outer shell, a liquid outlet channel is provided on the outer shell and a chamber is formed between the outer shell and the liquid inlet joint, and the impeller is located in the chamber; the transmission shaft passes through the outer shell and is connected to the impeller, and an anti-wear sleeve and a reverse-rotation thread waterproof sleeve are mounted on the transmission shaft, and the anti-wear sleeve is located above the reverse-rotation thread waterproof sleeve and opposite to the overflow channel.

[0005] The above-mentioned insertion type grinding fluid pump includes a driving motor, a hollow socket installed on the driving motor, a liquid pump box installed on the socket, and a transmission shaft that is passed through the socket and connected to the driving motor and the liquid pump box at both ends. During installation, the entire insertion type grinding fluid pump is inserted into the grinding fluid pool, and then the liquid outlet channel is connected to the engine room, and the overflow channel is connected to the grinding fluid pool. When using the insertion type grinding fluid pump, there is no need to equip it with water suction port, water supply port, drainage port and other connection positions like the external vertical grinding fluid pump. The structure is reasonable and occupies little space, which is easy to use and install. Since the transmission shaft is equipped with an anti-wear sleeve and a reverse-rotating thread waterproof sleeve, the anti-wear sleeve can protect the transmission shaft, avoid damage caused by contact with the grinding fluid, and extend the service life; the reverse-rotating thread waterproof sleeve can prevent the grinding fluid from spinning up and causing damage to the rotating shaft and the driving motor, and there is an overflow channel as a guarantee, which extends the service life of the entire set of insertion type grinding fluid pump, reduces the difficulty and cycle of maintenance, and has good stability.

[0006] In one of the embodiments, a first receiving plate and a second receiving plate are protrudingly provided on the receiving seat, the first receiving plate is connected to the driving motor, and the second receiving plate is connected to the liquid pump box.

[0007] In one embodiment, a plurality of first reinforcement plates and second reinforcement plates are protruding from the receiving seat, the first reinforcement plates are connected to the first receiving plate, and the second reinforcement plates are connected to the second receiving plate.

[0008] In one embodiment, a plurality of limit blocks are protruding from the first receiving plate, and the limit blocks are connected to the driving motor.

[0009] In one of the embodiments, the overflow channel is inclined at a preset angle toward the second receiving plate.

[0010] In one of the embodiments, the liquid pump box further includes a mounting plate and a plurality of mounting bolts, wherein the mounting plate is sleeved on the liquid inlet joint, and the mounting bolts are passed through the receiving seat and connected to the mounting plate.

[0011] In one of the embodiments, the outer shell is provided with an insertion hole, and the insertion hole and the reverse thread waterproof sleeve are clearance-matched.

[0012] In one of the embodiments, a sealing groove is provided on the housing, a sealing convex ring is provided on the liquid inlet connector, and the sealing convex ring is located in the sealing groove.

[0013] In one embodiment, the impeller includes a main body, a connecting seat protruding from the main body, and a plurality of first impeller blades, the connecting seat is connected to the transmission shaft, and the first impeller blades are opposite to the liquid inlet connector.

[0014] In one embodiment, the impeller further includes a plurality of second impeller blades protruding from the main body, and the second impeller blades are arranged along the outside of the connecting seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of an insertion type grinding fluid pump according to a preferred embodiment of the present invention;

[0016] Figure 2 for Figure 1 A partially exploded schematic diagram of an insertion type grinding fluid pump is shown;

[0017] Figure 3 for Figure 1 A partial cross-sectional schematic diagram of the insertion type grinding fluid pump shown;

[0018] Figure 4 for Figure 3 Schematic diagram of the impeller;

[0019] Figure 5 for Figure 3 Schematic diagram of the medium inlet connector.

[0020] Notes on the attached drawings:

[0021] 100-insertion type grinding liquid pump, 20-driving motor, 30-receiving seat, 31-overflow channel, 32-first receiving plate, 33-second receiving plate, 34-first reinforcing plate, 35-second reinforcing plate, 36-limiting block, 40-liquid pump box, 41-housing, 42-liquid inlet joint, 43-impeller, 44-mounting plate, 45-mounting bolt, 46-liquid outlet channel, 47-interpenetrating channel, 48-sealing convex ring, 431-main body, 432-connecting seat, 433-first impeller blade, 434-second impeller blade, 50-transmission shaft, 51-anti-wear sleeve, 52-reverse thread waterproof sleeve. DETAILED DESCRIPTION

[0022] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0023] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0025] Please refer to Figures 1 to 5 , which is an insertion type grinding liquid pump 100 of a preferred embodiment of the present invention, the insertion type grinding liquid pump 100 includes a driving motor 20, a hollow receiving seat 30 installed on the driving motor 20, a liquid pump box 40 installed on the receiving seat 30, and a transmission shaft 50 extending from the receiving seat 30 and having two ends respectively connected to the driving motor 20 and the liquid pump box 40.

[0026] The receiving seat 30 is provided with an overflow channel 31, and a first receiving plate 32 and a second receiving plate 33 are convexly provided on the receiving seat 30, the first receiving plate 32 is connected to the drive motor 20, and the second receiving plate 33 is connected to the liquid pump box 40, wherein the overflow channel 31 is inclined at a preset angle to the second receiving plate 33, and the inclination angle is 20°-60°. Further, the receiving seat 30 is provided with a plurality of first reinforcing plates 34 and a second reinforcing plate 35, the first reinforcing plate 34 is connected to the first receiving plate 32, and the second reinforcing plate 35 is connected to the second receiving plate 33, and the supporting strength of the receiving seat 30 is enhanced by the first reinforcing plates 34 and the second reinforcing plates 35. The first receiving seat 30 is convexly provided with a plurality of limit blocks 36, the limit blocks 36 are connected to the drive motor 20, and the limit blocks 36 increase the force points of the receiving seat 30 and the drive motor 20.

[0027] The liquid pump box 40 includes a housing 41, a liquid inlet joint 42 and an impeller 43 mounted on the housing 41, a mounting plate 44 and a plurality of mounting bolts 45. The housing 41 is provided with a liquid outlet channel 46 and a chamber is formed between the housing 41 and the liquid inlet joint 42, and the impeller 43 is located in the chamber. The mounting plate 44 is sleeved on the liquid inlet joint 42, and the mounting bolts 45 are penetrated on the receiving seat 30 and connected with the mounting plate 44. Furthermore, the housing 41 is provided with an insertion channel 47 and a sealing groove (not shown), and the insertion channel 47 is for the transmission shaft 50 to pass through and connect with the impeller 43. The liquid inlet joint 42 is provided with a sealing convex ring 48, and the sealing convex ring 48 is located in the sealing groove. When in use, under the tension and pressure of the mounting plate 44 and the mounting bolts 45, the sealing convex ring 48 fits tightly with the sealing groove to play a role in sealing and leakproofing. Furthermore, the impeller 43 includes a main body 431, a connecting seat 432 protruding from the main body 431, and a plurality of first impeller blades 433 and second impeller blades 434. The connecting seat 432 is connected to the transmission shaft 50, the first impeller blades 433 are opposite to the liquid inlet connector 42, and the second impeller blades 434 are arranged along the outside of the connecting seat 432.

[0028] The transmission shaft 50 is arranged in a three-step shape, and the transmission shaft 50 passes through the housing 41 and is connected to the impeller 43. The transmission shaft 50 is provided with an anti-wear sleeve 51 and a reverse-rotation thread waterproof sleeve 52, and the anti-wear sleeve 51 is located above the reverse-rotation thread waterproof sleeve 52 and is opposite to the overflow channel 21. Among them, the anti-wear sleeve 51 is made of highly wear-resistant polyurethane material or a die-cast aluminum part, and the reverse-rotation thread waterproof sleeve 52 and the insertion channel 47 are clearance-matched, and the distance between the outer surface of the reverse-rotation thread waterproof sleeve 52 and the inner wall of the insertion channel 47 is much smaller than the diameter of the normal abrasive.

[0029] The above-mentioned insertion type grinding liquid pump 100 includes a driving motor 20, a hollow receiving seat 30 installed on the driving motor 20, a liquid pump box 40 installed on the receiving seat 30, and a transmission shaft extending from the receiving seat 30 and connected to the driving motor 20 and the liquid pump box 40 at both ends. During installation, the entire insertion type grinding liquid pump 100 is inserted into the grinding liquid pool, and then the liquid outlet channel 46 is connected to the engine room, and the overflow channel 31 is connected to the grinding liquid pool. When the insertion type grinding liquid pump 100 is used, it does not need to be equipped with a water suction port, a water supply port, a water discharge port, etc. like an external vertical grinding liquid pump. It has a reasonable structure, occupies little space, and is easy to use and install. Since the transmission shaft 50 is provided with an anti-wear sleeve 51 and a reverse-rotating thread waterproof sleeve 52, the anti-wear sleeve 51 can protect the transmission shaft 50, avoid damage caused by contact with the grinding fluid, and extend the service life; the reverse-rotating thread waterproof sleeve 52 can prevent the grinding fluid from spinning up and causing damage to the rotating shaft 50 and the driving motor 20, and there is an overflow channel 31 for protection, thereby extending the service life of the entire insert-type grinding fluid pump, reducing the difficulty and cycle of maintenance, and having good stability.

[0030] The working principle of the insertion type grinding fluid pump 100 is: the driving motor 20 drives the impeller 43 to rotate, thereby transferring the mechanical energy of the driving motor 20 to the liquid. The centrifugal force generated by the rotation of the impeller 43 causes the liquid to flow from the liquid inlet joint 42 to the liquid outlet channel 46, and its velocity energy and pressure energy are increased. The liquid discharged by the impeller 43 passes through the extrusion chamber, and most of the velocity energy is converted into pressure energy, and then transported out along the discharge pipeline. At the same time, a vacuum or low pressure is formed at the liquid inlet joint 42 due to the discharge of the liquid, and the liquid in the grinding fluid pool is pressed into the chamber under the action of the liquid surface pressure / atmospheric pressure, so that the rotating impeller 43 continuously inhales and discharges the liquid.

[0031] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0032] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. An insertion type grinding fluid pump, characterized in that: include: A driving motor, a hollow socket mounted on the driving motor, a liquid pump box mounted on the socket, a transmission shaft extending from the socket and connected to the driving motor and the liquid pump box at both ends; the socket is provided with an overflow channel; the liquid pump box comprises a housing, a liquid inlet joint and an impeller mounted on the housing, the housing is provided with a liquid outlet channel and a chamber is formed between the housing and the liquid inlet joint, the impeller is located in the chamber; the transmission shaft passes through the housing and is connected to the impeller, the transmission shaft is provided with an anti-wear sleeve and a reverse-rotating thread waterproof sleeve, the anti-wear sleeve is located above the reverse-rotating thread waterproof sleeve and opposite to the overflow channel; A first receiving plate and a second receiving plate are convexly provided on the receiving seat, the first receiving plate is connected to the driving motor, and the second receiving plate is connected to the liquid pump box; a plurality of limit blocks are convexly provided on the first receiving plate, and the limit blocks are connected to the driving motor; The overflow channel is inclined toward the second receiving plate at a preset angle, with the inclination angle being 20°-60°; The housing is provided with an insertion hole, the transmission shaft passes through the insertion hole to connect with the impeller, and the insertion hole is clearance-matched with the reverse-rotating thread waterproof sleeve; The shell is provided with a sealing groove, the liquid inlet joint is provided with a sealing convex ring, and the sealing convex ring is located in the sealing groove.

2. The insertion type grinding fluid pump according to claim 1, characterized in that: A plurality of first reinforcement pieces and a second reinforcement piece are protruding from the receiving seat. The first reinforcement piece is connected to the first receiving disk, and the second reinforcement piece is connected to the second receiving disk.

3. The insertion type grinding fluid pump according to claim 1, characterized in that: The liquid pump box further comprises a mounting plate and a plurality of mounting bolts. The mounting plate is sleeved on the liquid inlet joint. The mounting bolts are passed through the receiving seat and connected to the mounting plate.

4. The insertion type grinding fluid pump according to claim 1, characterized in that: The impeller includes a main body, a connecting seat protruding from the main body, and a plurality of first impeller blades. The connecting seat is connected to the transmission shaft, and the first impeller blades are opposite to the liquid inlet joint.

5. The insertion type grinding fluid pump according to claim 4, characterized in that: The impeller further includes a plurality of second impeller blades protruding from the main body, and the second impeller blades are arranged along the outside of the connecting seat.

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