Permanent magnet motor rear drive type pulp agitator structure

Abstract

This utility model discloses a permanent magnet motor rear-drive pulp mixer structure, including a base. The top of the base is adjusted by an adjustment component to rotate a support plate. The right side of the bottom of the support plate is rotatably connected to the right side of the top of the base. A stirring mechanism is provided on the top of the support plate. The stirring mechanism includes a stirring component and a support ring installed on the top of the support plate. This utility model relates to the field of pulp processing technology. This permanent magnet motor rear-drive pulp mixer structure drives a rotating rod to rotate via a rear-drive component. Simultaneously, the rotating rod drives a rotating gear to mesh with a ring gear via a transmission component, causing the mixing tank and the rotating rod to rotate in opposite directions, forming a bidirectional stirring effect. This effectively breaks the dead zone of pulp circulation, improves mixing uniformity, and the scraper at the end of the stirring rod closely adheres to the inner wall of the mixing tank, allowing for real-time scraping of pulp adhering to the tank wall during stirring, reducing raw material waste, preventing tank wall corrosion, and reducing cleaning difficulty.

Description

Technical Field

[0001] This utility model relates to the field of pulp processing technology, specifically to a permanent magnet motor rear-drive pulp agitator structure. Background Technology

[0002] The reference patent title is: A Pulp Agitator (Authorization Announcement No.: CN219002662U, Authorization Announcement Date: 2023.05.12), which includes a housing assembly, a power assembly, and a mixing assembly. The housing assembly includes a mixing tank. A motor is installed inside the power housing. The mixing assembly includes mixing blades, a mixing crossbar, a blade sleeve, and a cleaning base plate. The mixing blades are connected to the mixing shaft through the blade sleeve. A side plate brush is connected to the end of the cleaning side plate away from the mixing crossbar. The beneficial effect is that when the motor is turned on and the mixing shaft rotates under the drive of the connecting shaft, the mixing shaft drives the blade sleeve and the mixing blades to rotate synchronously during the rotation. Then, the mixing blades can continuously stir the initially prepared pulp during the rotation, thereby fully diluting and mixing the fibers, water, and chemical raw materials in the pulp. Thus, the mixing and stirring of the pulp is achieved through the rotation of the mixing blades.

[0003] Based on the aforementioned documents, in the papermaking industry, pulp mixing is a crucial pretreatment process. It requires a mixer to thoroughly mix the pulp with additives to ensure the quality of raw materials for subsequent papermaking processes. In existing pulp mixers, the mixing tank is generally fixed, relying solely on the rotation of the internal stirring rod. This easily leads to dead zones in the pulp circulation within the tank, resulting in uneven mixing, high pulp viscosity, and easy adhesion to the inner wall of the mixing tank. Furthermore, the mixing tank is often horizontal, allowing the pulp to flow slowly under its own weight during discharge. This not only results in low discharge efficiency but also easily leaves residue at the bottom of the tank, requiring manual cleaning and increasing operating costs. Therefore, this utility model provides a permanent magnet motor-driven rear-drive pulp mixer structure. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a permanent magnet motor rear-drive pulp mixer structure, which solves the problems of uneven mixing, excessive residue on the tank wall, and low discharge efficiency and excessive residue caused by the fixed angle of the mixing tank in existing equipment.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a permanent magnet motor rear-drive pulp mixer structure, comprising a base, the top of which is adjusted to allow a support plate to rotate, the right side of the bottom of the support plate being rotatably connected to the right side of the top of the base, and a stirring mechanism being provided on the top of the support plate, the stirring mechanism comprising:

[0006] The stirring assembly includes a support ring mounted on top of a support plate. A stirring tank is rotatably connected inside the support ring. Ring teeth are fixedly connected to the surface of the stirring tank. A rotating rod is rotatably connected inside the stirring tank. Multiple sets of stirring rods are fixedly connected to the surface of the rotating rod. A scraper is fixedly connected to one end of each stirring rod. The outer side of the scraper is in contact with the inner wall of the stirring tank. One end of the stirring rod extends through to the outside of the stirring tank. One end of the rotating rod drives a rotating gear to rotate via a transmission assembly. The surface of the rotating gear meshes with the surface of the ring teeth.

[0007] The rear drive assembly is located on one side of the support plate and is used to drive the rotating rod to rotate.

[0008] Preferably, the transmission assembly includes a rotating wheel installed at one end of a rotating rod, a transmission wheel connected to the surface of the rotating wheel via a transmission belt, a transmission rod fixedly connected inside the transmission wheel, the transmission rod being rotatably installed inside a bearing plate, and the surface of the transmission rod being fixedly connected to the inside of a rotating gear.

[0009] Preferably, the rear drive assembly includes a mounting bracket installed on one side of the support plate, and a permanent magnet motor is fixedly connected to the top of the mounting bracket. One end of the output shaft of the permanent magnet motor is fixedly connected to the other end of the rotating rod via a coupling.

[0010] Preferably, the surface of the mixing tank is provided with a feed inlet, and the right side of the mixing tank is provided with a discharge outlet.

[0011] Preferably, the adjustment assembly includes an adjustment motor installed on the left side of the base. One end of the output shaft of the adjustment motor is fixedly connected to an adjustment screw via a coupling. A T-shaped plate is threaded onto the surface of the adjustment screw. A support rod is rotatably connected to the top of the T-shaped plate. One end of the support rod is rotatably connected to the bottom of the bearing plate.

[0012] Preferably, a symmetrical limiting slide rail is installed on the top of the base, the surface of the limiting slide rail is slidably connected to the inside of the T-shaped plate, a symmetrical support seat is installed on the left side of the top of the base, and a symmetrical support block is installed on the left side of the bottom of the bearing plate, the bottom of the support block is in contact with the top of the support seat.

[0013] Beneficial effects

[0014] This invention provides a structure for a permanent magnet motor-driven rear-drive pulp mixer. Compared with the prior art, it has the following advantages:

[0015] 1. The permanent magnet motor rear-drive pulp mixer structure drives the rotating rod to rotate through the rear drive component. At the same time, the rotating rod drives the rotating gear to mesh with the ring gear through the transmission component, so that the mixing tank and the rotating rod rotate in opposite directions, forming a bidirectional mixing effect. This effectively breaks the dead zone of pulp circulation, improves the uniformity of mixing, and the scraper at the end of the stirring rod is in close contact with the inner wall of the mixing tank. During the mixing process, the pulp adhering to the tank wall can be scraped off in real time, reducing raw material waste, avoiding tank wall corrosion, and reducing cleaning difficulty.

[0016] 2. The permanent magnet motor rear-drive pulp mixer structure is equipped with an adjustment component. The adjustment motor drives the adjustment screw to rotate, which in turn drives the T-shaped plate and the support rod to form a 0-30° right-low-left-high tilt angle in the mixing tank. Compared with the horizontal state, the discharge speed is increased by 40%-60%. At the same time, the tilting gravity reduces the residue at the bottom of the tank, eliminating the need for manual cleaning and greatly reducing operating costs. Moreover, the angle can be flexibly adjusted according to the pulp concentration to adapt to different working conditions. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the external structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the mixing tank of this utility model;

[0019] Figure 3 This is a three-dimensional schematic diagram of the transmission component of this utility model;

[0020] Figure 4 This is a three-dimensional schematic diagram of the adjustment component of this utility model.

[0021] In the diagram: 1-Base, 2-Adjusting component, 21-Adjusting motor, 22-Adjusting screw, 23-T-plate, 24-Support rod, 3-Bearing plate, 4-Stirring mechanism, 41-Stirring component, 411-Support ring, 412-Stirring tank, 413-Ring gear, 414-Rotating rod, 415-Stirring rod, 416-Scraper, 417-Rotating gear, 42-Rear drive component, 421-Mounting bracket, 422-Permanent magnet motor, 5-Transmission component, 51-Rotating wheel, 52-Transmission belt, 53-Transmission wheel, 54-Transmission rod, 6-Inlet, 7-Outlet, 8-Limiting slide rail, 9-Support base, 10-Support block. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 This utility model provides a technical solution:

[0024] A permanent magnet motor-driven pulp mixer structure includes a base 1. The top of the base 1 is adjusted by an adjusting assembly 2 to rotate a support plate 3. The right side of the bottom of the support plate 3 is rotatably connected to the right side of the top of the base 1. A stirring mechanism 4 is provided on the top of the support plate 3. The stirring mechanism 4 includes:

[0025] The stirring assembly 41 includes a support ring 411 mounted on the top of the support plate 3. A stirring tank 412 is rotatably connected inside the support ring 411. A ring tooth 413 is fixedly connected to the surface of the stirring tank 412. A rotating rod 414 is rotatably connected inside the stirring tank 412. Multiple stirring rods 415 are fixedly connected to the surface of the rotating rod 414. A scraper 416 is fixedly connected to one end of the stirring rod 415. The outer side of the scraper 416 is in contact with the inner wall of the stirring tank 412. One end of the stirring rod 415 extends through to the outside of the stirring tank 412. One end of the rotating rod 414 drives a rotating gear 417 to rotate through a transmission assembly 5. The surface of the rotating gear 417 meshes with the surface of the ring tooth 413.

[0026] The rear drive assembly 42 is located on one side of the support plate 3 and is used to drive the rotating rod 414 to rotate.

[0027] The bottom of base 1 is equipped with a protective pad to increase friction with the ground and prevent the equipment from shifting during operation;

[0028] A rotating bearing is installed at the rotating connection between the rotating rod 414 and the mixing tank 412;

[0029] A slot is provided at the center of the top of the support plate 3 for the rotating gear 417 to rotate.

[0030] The rear drive assembly 42 drives the rotating rod 414 to rotate. At the same time, the rotating rod 414 drives the rotating gear 417 to mesh with the ring gear 413 through the transmission assembly 5, so that the mixing tank 412 and the rotating rod 414 rotate in opposite directions, forming a bidirectional mixing effect. This effectively breaks the dead zone of pulp circulation, improves the uniformity of mixing, and the scraper 416 at the end of the stirring rod 415 fits tightly against the inner wall of the mixing tank 412. During the mixing process, the pulp attached to the tank wall can be scraped off in real time, reducing raw material waste, avoiding tank wall corrosion, and reducing cleaning difficulty.

[0031] In this embodiment, the transmission assembly 5 includes a rotating wheel 51 installed at one end of the rotating rod 414. The surface of the rotating wheel 51 is connected to a transmission wheel 53 via a transmission belt 52. A transmission rod 54 is fixedly connected inside the transmission wheel 53. The transmission rod 54 is rotatably installed inside the bearing plate 3. The surface of the transmission rod 54 is fixedly connected to the inside of the rotating gear 417.

[0032] In this embodiment, the rear drive assembly 42 includes a mounting bracket 421 installed on one side of the support plate 3. A permanent magnet motor 422 is fixedly connected to the top of the mounting bracket 421. One end of the output shaft of the permanent magnet motor 422 is fixedly connected to the other end of the rotating rod 414 through a coupling.

[0033] The 422 permanent magnet motor is a three-phase asynchronous permanent magnet motor. Using a permanent magnet motor as the rear drive power source reduces energy consumption by 15%-20% compared to ordinary motors. The rear drive layout makes the transmission path shorter and improves drive efficiency. At the same time, it avoids contact between the drive components and the pulp, reducing the probability of failure and extending the service life of the equipment.

[0034] In this embodiment, a feed inlet 6 is installed on the surface of the mixing tank 412, and a discharge outlet 7 is installed on the right side of the mixing tank 412.

[0035] A sealing cover is provided on the feed inlet 6, and a solenoid valve is installed inside the discharge outlet 7.

[0036] In this embodiment, the adjustment assembly 2 includes an adjustment motor 21 installed on the left side of the base 1. One end of the output shaft of the adjustment motor 21 is fixedly connected to an adjustment screw 22 via a coupling. A T-shaped plate 23 is threadedly connected to the surface of the adjustment screw 22. A support rod 24 is rotatably connected to the top of the T-shaped plate 23. One end of the support rod 24 is rotatably connected to the bottom of the bearing plate 3.

[0037] The adjusting motor 21 is a servo motor, the adjusting screw 22 rotates inside the base 1, and the top of the base 1 is provided with a sliding groove for the T-shaped plate 23 to slide.

[0038] In this embodiment, a symmetrical limiting slide rail 8 is installed on the top of the base 1. The surface of the limiting slide rail 8 is slidably connected to the inside of the T-shaped plate 23. A symmetrical support seat 9 is installed on the left side of the top of the base 1. A symmetrical support block 10 is installed on the left side of the bottom of the bearing plate 3. The bottom of the support block 10 is in contact with the top of the support seat 9.

[0039] The limiting slide rail 8 is used to slide and limit the T-shaped plate 23; when the groove at the top of the support seat 9 and the bottom of the support block 10 are fully in contact, the mixing tank 412 is in a horizontal state.

[0040] By setting up the adjustment component 2, the adjustment motor 21 drives the adjustment screw 22 to rotate, which drives the T-shaped plate 23 and the support rod 24 to move together, so that the mixing tank forms a right-low and left-high tilt angle of 0-30°. Compared with the horizontal state, the discharge speed is increased by 40%-60%. At the same time, the tilting gravity reduces the residue at the bottom of the tank, eliminating the need for manual cleaning and greatly reducing operating costs. Moreover, the angle can be flexibly adjusted according to the pulp concentration to adapt to different working conditions.

[0041] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0042] During operation, firstly, open the sealing cover on the top of the mixing tank 412, and add pulp and additives into the mixing tank 412 through the feed port 6. After feeding is completed, close the sealing cover. Then, start the permanent magnet motor 422 through the external control panel. The permanent magnet motor 422 drives the rotating rod 414 to rotate clockwise. The rotating rod 414 drives the mixing rod 415 and the scraper 416 to rotate. The scraper 416 scrapes off the paper pulp in the tank. At the same time, the rotating rod 414 drives the rotating wheel 51 to rotate. Through the synchronous belt, the transmission wheel 53 and the transmission rod 54 rotate. The transmission rod 54 drives the rotating gear 417 to rotate counterclockwise. The rotating gear 417 meshes with the ring gear 413, causing the mixing tank 412 to rotate counterclockwise, forming bidirectional mixing.

[0043] After mixing is complete, start the adjusting motor 21 to rotate forward via the control panel. Adjusting screw 22 drives T-plate 23 to move to the left. Support rod 24 supports the left side of bearing plate 3, causing mixing tank 412 to tilt. Adjust according to pulp concentration; the higher the concentration, the larger the angle. At this time, discharge port 7 is at its lowest position. Open discharge port 7 via solenoid valve, and pulp is quickly discharged under gravity.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A permanent magnet motor-driven pulp mixer structure, comprising a base (1), characterized in that: The top of the base (1) is adjusted by the adjusting component (2) to allow the support plate (3) to rotate. The right side of the bottom of the support plate (3) is rotatably connected to the right side of the top of the base (1). The top of the support plate (3) is provided with a stirring mechanism (4), which includes: The stirring assembly (41) includes a support ring (411) mounted on the top of the support plate (3). The inside of the support ring (411) is rotatably connected to a stirring tank (412). The surface of the stirring tank (412) is fixedly connected to an annular tooth (413). The inside of the stirring tank (412) is rotatably connected to a rotating rod (414). The surface of the rotating rod (414) is fixedly connected to multiple sets of stirring rods (415). One end of the stirring rod (415) is fixedly connected to a scraper (416). The outer side of the scraper (416) is in contact with the inner wall of the stirring tank (412). One end of the stirring rod (415) extends through to the outside of the stirring tank (412). One end of the rotating rod (414) drives a rotating gear (417) to rotate through a transmission assembly (5). The surface of the rotating gear (417) meshes with the surface of the annular tooth (413). The rear drive assembly (42) is located on one side of the support plate (3) and is used to drive the rotating rod (414) to rotate.

2. The structure of a permanent magnet motor-driven rear-drive pulp mixer according to claim 1, characterized in that: The transmission assembly (5) includes a rotating wheel (51) installed at one end of a rotating rod (414). The surface of the rotating wheel (51) is connected to a transmission wheel (53) via a transmission belt (52). A transmission rod (54) is fixedly connected inside the transmission wheel (53). The transmission rod (54) is rotatably installed inside the bearing plate (3). The surface of the transmission rod (54) is fixedly connected to the inside of a rotating gear (417).

3. The structure of a permanent magnet motor-driven rear-drive pulp mixer according to claim 1, characterized in that: The rear drive assembly (42) includes a mounting bracket (421) installed on one side of the support plate (3). A permanent magnet motor (422) is fixedly connected to the top of the mounting bracket (421). One end of the output shaft of the permanent magnet motor (422) is fixedly connected to the other end of the rotating rod (414) through a coupling.

4. The structure of a permanent magnet motor-driven rear-drive pulp mixer according to claim 1, characterized in that: The mixing tank (412) is equipped with a feed inlet (6) on its surface and a discharge outlet (7) on its right side.

5. The structure of a permanent magnet motor-driven rear-drive pulp mixer according to claim 1, characterized in that: The adjustment assembly (2) includes an adjustment motor (21) installed on the left side of the base (1). One end of the output shaft of the adjustment motor (21) is fixedly connected to an adjustment screw (22) via a coupling. A T-shaped plate (23) is threaded onto the surface of the adjustment screw (22). A support rod (24) is rotatably connected to the top of the T-shaped plate (23). One end of the support rod (24) is rotatably connected to the bottom of the bearing plate (3).

6. The structure of a permanent magnet motor rear-drive pulp mixer according to claim 5, characterized in that: The top of the base (1) is equipped with a symmetrical limiting slide rail (8), the surface of the limiting slide rail (8) is slidably connected to the inside of the T-shaped plate (23), a symmetrical support seat (9) is installed on the left side of the top of the base (1), and a symmetrical support block (10) is installed on the left side of the bottom of the bearing plate (3), the bottom of the support block (10) is in contact with the top of the support seat (9).

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