Centrifugal pump of magnesium alloy quantitative furnace

Abstract

The utility model relates to the technical field of magnesium alloy casting equipment, and discloses a centrifugal pump of a magnesium alloy quantitative furnace, which comprises a pump body, the pump body comprises a motor and a sleeve piece, an output shaft of the motor is connected with a rotating shaft, one end of the rotating shaft far away from the motor is provided with an impeller, and the sleeve piece is sleeved outside the rotating shaft and connected with the motor. According to the utility model, the groove is arranged on the rotating shaft, so that when the motor is blocked by magnesium alloy slag and cannot be started, the worker can rotate the rotating shaft through the groove by means of a tool so as to help the motor to be started smoothly; the problem that the motor is difficult to start is effectively solved, and the reliability of equipment and the continuity of production are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to magnesium alloy foundry equipment technical field especially relates to a magnesium alloy quantitative furnace's centrifugal pump. BACKGROUND

[0002] In the modern magnesium alloy foundry production process, magnesium alloy quantitative furnace plays a vital role, and it can accurately control the supply quantity of magnesium alloy melt, and ensure the stability of the foundry product quality. As the key component of magnesium alloy quantitative furnace, the centrifugal pump is responsible for transporting the magnesium alloy melt from the storage area to the designated position, and its working performance and the convenience of installation and maintenance directly affect the efficiency and stability of the whole foundry production process.

[0003] At present, the existing magnesium alloy quantitative furnace centrifugal pump has many problems. On the one hand, in the installation and disassembly, the traditional fixed mode operation is tedious and inefficient, often needs to consume a lot of time and manpower, which not only increases the production cost, but also affects the maintenance and replacement speed of the equipment, and further reduces the production efficiency. On the other hand, in the use process of the centrifugal pump, due to the characteristics of magnesium alloy melt, magnesium alloy slag and other impurities are easy to produce, which may block the motor, resulting in the motor unable to start and run normally. And the existing centrifugal pump lacks effective solutions to this situation, which increases the difficulty of equipment fault handling, prolongs the downtime, and brings great loss to the production. UTILITY MODEL CONTENTS

[0004] The utility model provides a kind of magnesium alloy quantitative furnace's centrifugal pump for the deficiency in prior art, enough to realize quick installation and disassembly, and the centrifugal pump that is easy to start when motor is stuck by magnesium alloy slag, greatly improve work efficiency, effectively reduce equipment downtime.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A kind of magnesium alloy quantitative furnace's centrifugal pump, including pump body, the pump body includes motor and sleeve piece, the output shaft of the motor is connected with rotating shaft, the rotating shaft is equipped with impeller at the end away from motor, the sleeve piece is sleeved outside rotating shaft and is connected with motor, the rotating shaft is equipped with recess for facilitating worker to rotate it, the sleeve piece is equipped with through hole two corresponding with recess position.

[0007] Preferably, the sleeve piece comprises sleeve one, sleeve two and sleeve three, the upper end of the sleeve one is connected with the motor, the sleeve two is connected with the lower end of the sleeve one, the sleeve three is connected with the lower end of the sleeve two, the through hole two is arranged on the sleeve two, the sleeve three is provided with a pump chamber, the impeller is arranged in the pump chamber, the sleeve piece adopts the combined structure of the sleeve one, the sleeve two and the sleeve three, has many advantages, the layered sleeve design makes the function of each part more clear, is convenient for manufacturing, installation and maintenance, the sleeve one is connected with the motor, can stably support the motor and transmit power, the through hole two is arranged on the sleeve two, provides an operation space for workers to rotate the rotating shaft under special circumstances.

[0008] Preferably, the sleeve one is provided with the through hole one, the through hole one is arranged at the position where the motor output shaft is connected with the rotating shaft, the rotating shaft is connected with the sleeve one through bearings, the bearings are two, and the bearings are arranged near the through hole one and the through hole two respectively, the design that the two bearings are connected with the rotating shaft and the two bearings are arranged near the through hole one and the through hole two respectively can more stably support the rotating shaft, reduce the radial and axial runout of the rotating shaft when rotating at high speed, and improve the rotation accuracy and stability of the rotating shaft.

[0009] Preferably, the sleeve two is provided with a plurality of heat dissipation holes near the position of the through hole two, the arrangement of the heat dissipation holes can effectively promote air circulation, accelerate heat dissipation, and reduce the temperature of the sleeve two and surrounding parts.

[0010] Preferably, the fixing mechanism is further arranged, the pump body is provided with a connecting piece matched with the fixing mechanism, the fixing mechanism is arranged on the furnace body, the fixing mechanism and the connecting piece are matched to realize quick disassembly and assembly of the pump body, the connecting piece comprises a connecting ring fixedly connected with the pump body, and the connecting ring is provided with a mounting plate matched with the fixing mechanism to realize fixing of the pump body, the connecting ring and the mounting plate are arranged on the pump body, and the fixing mechanism on the furnace body is matched to realize quick disassembly and assembly of the pump body.

[0011] Preferably, the fixing mechanism comprises a cylinder and a positioning piece one, the output shaft of the cylinder is connected with the positioning piece one, the furnace body is provided with a positioning block three corresponding to the position of the positioning piece one, the mounting plate is arranged between the positioning piece one and the positioning block three, and the positioning piece one comprises a moving plate one, and the moving plate one is provided with a positioning block one for extruding and fixing the mounting plate.

[0012] Preferably, the fixing mechanism further comprises a positioning member two, the positioning member one is provided with a driving plate, the positioning member two is provided with two, and the two positioning member twos are respectively arranged at the two ends of the driving plate and are connected with the driving plate, the positioning member two is additionally arranged and connected with the positioning member one through the driving plate, and the fixing effect and stability of the fixing mechanism are further enhanced, the two positioning member twos are arranged at the two ends of the driving plate, the mounting plate can be pressed and fixed from multiple directions, and the fixing of the pump body on the furnace body is more firm and reliable.

[0013] Preferably, the positioning member two comprises a fixed plate, the fixed plate is provided with a moving plate two, the moving plate two is provided with a positioning block two for pressing and fixing the mounting plate, the fixed plate is mounted on the furnace body, and the moving plate two can move on the fixed plate and contact the mounting plate through the positioning block two on the moving plate two and apply appropriate pressure to fix the mounting plate.

[0014] Preferably, the fixed plate is provided with a sliding rail plate, the moving plate two is provided with a sliding groove, the moving plate two is slidably connected with the sliding rail plate through the sliding groove, and the sliding rail plate on the fixed plate is matched with the sliding groove on the moving plate two, so that accurate guidance and stable support are provided for the movement of the moving plate two.

[0015] Preferably, the moving plate two is provided with a guide hole, both ends of the driving plate are provided with a driving rod, the driving rod is arranged in the guide hole to control the movement of the moving plate two, and the guide hole on the moving plate two is matched with the driving rod at the two ends of the driving plate, so that the driving rod moves synchronously with the moving plate two through the cooperation of the driving rod and the guide hole.

[0016] Compared with the prior art, the fixing mechanism has the following beneficial effects:

[0017] The recess is arranged on the rotating shaft, when the motor is stuck by magnesium alloy slag and cannot be started, workers can rotate the rotating shaft through the recess by means of tools, and help the motor to start smoothly, so that the problem of difficult starting of the motor is solved, and the reliability of the equipment and the continuity of production are improved.

[0018] The fixing mechanism arranged on the furnace body and the connecting piece arranged on the pump body are used, the positioning member one and the positioning member two are driven by the air cylinder to press and fix the mounting plate, the pump body can be quickly installed and disassembled, the working efficiency is greatly improved, the equipment downtime is reduced, and the maintenance cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the drawings needed in the embodiments will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.

[0020] Figure 1 It is the whole structure schematic view of the utility model;

[0021] Figure 2 It is the fixed mechanism to pump body upper mounting plate fixed view of the utility model;

[0022] Figure 3 It is the pump body structure view of the utility model;

[0023] Figure 4 It is the heat dissipation hole position view of the utility model;

[0024] Figure 5 It is the pump body sectional view of the utility model;

[0025] Figure 6 It is the fixed mechanism structure view of the utility model; Figure 5 It is the enlarged view of A place in the middle;

[0026] Figure 7 It is the fixed mechanism structure view of the utility model;

[0027] Figure 8 It is the fixed mechanism structure explosion view of the utility model.

[0028] Figure number explanation: 1, pump body;11, motor;12, rotating shaft;121, recess;13, sleeve one;131, through hole one;132, through hole two;14, sleeve two;141, heat dissipation hole;15, sleeve three;16, bearing;17, impeller;18, connecting ring;19, mounting plate;2, fixed mechanism;21, cylinder;22, positioning piece one;221, moving plate one;222, positioning block one;23, drive plate;231, drive rod;24, positioning piece two;241, fixed plate;2411, slide rail plate;242, moving plate two;2421, guide hole;243, positioning block two;3, positioning block three;4, furnace body. DETAILED DESCRIPTION

[0029] The utility model will be further described in detail below in combination with the drawings.

[0030] The following description is used to disclose the utility model so that the person skilled in the art can realize the utility model. The preferred embodiments in the following description are only as examples, and other obvious modifications can be thought by the person skilled in the art. The basic principles of the utility model defined in the following description can be used in other implementation, modification, improvement, equivalent and other technical solutions without departing from the spirit and scope of the utility model.

[0031] Those skilled in the art should understand that in the disclosure of the utility model, the orientation or position indicated by the terms "longitudinal", "transverse", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position shown in the drawings, which is only for the convenience of the simplified description of the utility model and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, therefore the above terms cannot be understood as a limitation on the utility model.

[0032] It can be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of one element can be one, and in another embodiment, the number of the element can be multiple, and the term "one" cannot be understood as a limitation on the number. Embodiments

[0033] Please refer to Figures 1-8 A centrifugal pump of a magnesium alloy quantitative furnace comprises a pump body 1, the pump body 1 comprises a motor 11 and a sleeve piece, a rotating shaft 12 is connected to the output shaft of the motor 11, an impeller 17 is arranged at the end of the rotating shaft 12 away from the motor 11, the sleeve piece is arranged outside the rotating shaft 12 and connected with the motor 11, a groove 121 is arranged on the rotating shaft 12 for facilitating workers to rotate the rotating shaft 12, and a through hole two 132 is arranged on the sleeve piece and corresponds to the position of the groove 121.

[0034] The sleeve piece comprises a sleeve one 13, a sleeve two 14 and a sleeve three 15, the sleeve one 13 is connected with the motor 11 at the upper end, the sleeve two 14 is connected with the lower end of the sleeve one 13, the sleeve three 15 is connected with the lower end of the sleeve two 14, the through hole two 132 is arranged on the sleeve two 14, and a pump chamber is arranged in the sleeve three 15, the sleeve piece adopts the combined structure of the sleeve one 13, the sleeve two 14 and the sleeve three 15, has many advantages, the layered sleeve design makes the functions of each part more clear, and facilitates manufacturing, installation and maintenance, the sleeve one 13 is connected with the motor 11, can stably support the motor 11 and transmit power, and the through hole two 132 is arranged on the sleeve two 14, which provides operation space for workers to rotate the rotating shaft 12 under special circumstances.

[0035] The sleeve one 13 is provided with a through hole one 131, the through hole one 131 is arranged at the position where the output shaft of the motor 11 is connected with the rotating shaft 12, the rotating shaft 12 is connected with the sleeve one 13 through bearings 16, the bearings 16 are arranged at positions close to the through hole one 131 and the through hole two 132 respectively, the design that the rotating shaft 12 is connected with two bearings 16 and the bearings 16 are arranged at positions close to the through hole one 131 and the through hole two 132 respectively can more stably support the rotating shaft 12, reduce the radial and axial runout of the rotating shaft 12 when rotating at high speed, and improve the rotation accuracy and stability of the rotating shaft 12.

[0036] The sleeve two 14 is provided with a plurality of heat dissipation holes 141 near the position of the through hole two 132, the heat dissipation holes 141 can effectively promote air circulation, accelerate heat dissipation, and reduce the temperature of the sleeve two 14 and the surrounding components.

[0037] The fixing mechanism 2 is further provided with a connecting piece on the pump body 1, the fixing mechanism 2 is arranged on the furnace body 4, and the fixing mechanism 2 and the connecting piece are matched to realize quick disassembly and assembly of the pump body 1.

[0038] The fixing mechanism 2 comprises a cylinder 21 and a positioning piece one 22, the output shaft of the cylinder 21 is connected with the positioning piece one 22, the furnace body 4 is provided with a positioning block three 3 corresponding to the position of the positioning piece one 22, the mounting plate 19 is arranged between the positioning piece one 22 and the positioning block three 3, and the positioning piece one 22 comprises a moving plate one 221, and the moving plate one 221 is provided with a positioning block one 222 for extruding and fixing the mounting plate 19.

[0039] The fixing mechanism 2 further comprises a positioning piece two 24, the positioning piece one 22 is provided with a driving plate 23, and the positioning piece two 24 is provided with two, and the two positioning piece two 24 are arranged at two ends of the driving plate 23 and connected with the driving plate 23.

[0040] The positioning piece two 24 comprises a fixed plate 241, the fixed plate 241 is provided with a moving plate two 242, the moving plate two 242 is provided with a positioning block two 243 for extruding and fixing the mounting plate 19, the fixed plate 241 is arranged on the furnace body 4, and the moving plate two 242 can move on the fixed plate 241.

[0041] The fixed plate 241 is provided with a sliding rail plate 2411, the moving plate two 242 is provided with a sliding groove, the moving plate two 242 is slidably connected with the sliding rail plate 2411 through the sliding groove, and the sliding rail plate 2411 on the fixed plate and the sliding groove on the moving plate two 242 are matched to provide accurate guidance and stable support for movement of the moving plate two 242.

[0042] The moving plate two 242 is provided with a guide hole 2421, and the two ends of the driving plate 23 are provided with driving rods 231, the driving rods 231 are located in the guide hole 2421 and control the movement of the moving plate two 242, and the guide hole 2421 on the moving plate two 242 cooperates with the driving rods 231 at the two ends of the driving plate 23, so that the driving rods 231 drive the moving plate two 242 to move synchronously through cooperation with the guide hole 2421 when the driving rods 231 move.

[0043] The centrifugal pump can better dissipate heat to the pump body 1 through the through hole one 131, the through hole two 132 and the heat dissipation hole 141 when the centrifugal pump is running, the through hole two 132 facilitates workers to rotate the rotating shaft 12 by using a wrench, and the through hole one 131 and the through hole two 132 also facilitate workers to replace and disassemble the corresponding two bearings 16;

[0044] The pump body 1 starts the motor 11 to drive the impeller 17 to rotate, so that the magnesium alloy solution is transported, in the use process, the magnesium alloy slag is stuck to the motor 11 and cannot be started to rotate, workers can use a wrench and the like to clamp the recess 121 on the rotating shaft 12, rotate the rotating shaft 12, help the motor 11 to start smoothly, and then continue to use the centrifugal pump normally;

[0045] When the pump body 1 needs to be taken down for maintenance and replacement of parts, the cylinder 21 starts its output shaft to reset, the cylinder 21 drives the moving plate one 221 to move, so that the positioning block one 222 moves away from the mounting plate 19, the moving plate one 221 moves synchronously to drive the driving plate 23 to move, the driving plate 23 moves through the guide cooperation between the driving rod 231 and the guide hole 2421, can drive the moving plate two 242 to move away from the mounting plate 19, the moving plate two 242 drives the positioning block two 243 to move away from the mounting plate 19, after the positioning piece one 22 and the positioning piece two 24 are away from the mounting plate 19, workers remove the mounting plate 19 from below the positioning block three 3, and the pump body 1 can be quickly taken down for maintenance and replacement of parts.

[0046] It should be understood by those skilled in the art that the above description and the embodiments of the utility model shown in the drawings are only as examples and do not limit the utility model. The purpose of the utility model has been completely and effectively realized. The function and structural principle of the utility model have been shown and explained in the embodiments, and the embodiments of the utility model can be any deformation or modification without departing from the principle.

Claims

1. A centrifugal pump for a magnesium alloy quantitative furnace, characterized by, The utility model provides a pump body (1) including motor (11) and sleeve piece, the output shaft of motor (11) is connected with rotating shaft (12), the one end away from motor (11) of rotating shaft (12) is equipped with impeller (17), the sleeve piece is set up in the outside of rotating shaft (12) and is connected with motor (11), the rotating shaft (12) is equipped with recess (121) for the rotation of worker, the sleeve piece is equipped with the through -hole two (132) with recess (121) position correspondence.

2. A centrifugal pump for a magnesium alloy quantitative furnace according to claim 1, characterized in that: The sleeve piece includes sleeve one (13), sleeve two (14) and sleeve three (15), the upper end of sleeve one (13) is connected with motor (11), sleeve two (14) is connected with the lower end of sleeve one (13), sleeve three (15) is connected with the lower end of sleeve two (14), the through -hole two (132) is set up on sleeve two (14), the sleeve three (15) is equipped with pump chamber, and the impeller (17) is in the pump chamber.

3. A centrifugal pump for a magnesium alloy dosing furnace according to claim 2, characterized in that: The sleeve one (13) is equipped with the through -hole one (131), the through -hole one (131) is equipped at the output shaft of motor (11) and the connecting position of rotating shaft (12), the rotating shaft (12) is connected between sleeve one (13) through bearing (16), the bearing (16) is equipped with two, the bearing (16) is respectively equipped in the position close to the through -hole one (131) with the through -hole two (132).

4. A centrifugal pump for a magnesium alloy dosing furnace according to claim 3, characterized in that: The sleeve two (14) is equipped with a plurality of heat dissipation holes (141) in the position close to the through -hole two (132).

5. The centrifugal pump of a magnesium alloy quantitative furnace according to claim 1, characterized in that: It also includes a fixing mechanism (2), the pump body (1) is equipped with the connecting piece that cooperates with the fixing mechanism (2), the fixing mechanism (2) is equipped on the furnace body (4), the fixing mechanism (2) cooperates with the connecting piece and realizes the quick disassembly of pump body (1), the connecting piece includes the connecting ring (18) fixedly connected with the pump body (1), and the connecting ring (18) is equipped with the mounting plate (19) that cooperates with the fixing mechanism (2) and realizes the fixing of pump body (1).

6. A centrifugal pump for a magnesium alloy dosing furnace according to claim 5, characterized in that: The fixing mechanism (2) includes a cylinder (21) and a positioning piece one (22), the output shaft of the cylinder (21) is connected with the positioning piece one (22), the furnace body (4) is equipped with the positioning block three (3) in the position corresponding to the positioning piece one (22), the mounting plate (19) is between the positioning piece one (22) and the positioning block three (3), and the positioning piece one (22) includes a moving plate one (221).

7. A centrifugal pump for a magnesium alloy dosing furnace according to claim 6, characterized in that: The fixing mechanism (2) further includes a positioning piece two (24), the positioning piece one (22) is equipped with a driving plate (23), the positioning piece two (24) is equipped with two, and the two positioning piece two (24) is respectively equipped in the two ends of the driving plate (23) and is connected with it.

8. A centrifugal pump for a magnesium alloy dosing furnace according to claim 7, characterized in that: The positioning piece two (24) includes a fixed plate (241), the fixed plate (241) is equipped with a moving plate two (242), the moving plate two (242) is equipped with the positioning block two (243) for extruding and fixing the mounting plate (19), and the fixed plate (241) is installed on the furnace body (4).

9. A centrifugal pump for a magnesium alloy dosing furnace according to claim 8, characterized in that: The fixed plate (241) is provided with a sliding rail plate (2411), the second moving plate (242) is provided with a sliding groove, and the second moving plate (242) is in sliding cooperation with the sliding rail plate (2411) through the sliding groove.

10. A centrifugal pump for a magnesium alloy dosing furnace according to claim 9, characterized in that: The second moving plate (242) is provided with a guide hole (2421), both ends of the driving plate (23) are provided with a driving rod (231), and the driving rod (231) is located in the guide hole (2421) and controls the movement of the second moving plate (242).

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