A new type of ball mill

Abstract

The utility model discloses a novel ball mill, including installation riser, drum, speed reducer motor, driving gear, driven gear ring, transmission chain, bottom follow -up support subassembly, side part load bearing guide subassembly, the drum is the jar body that is equipped with inner chamber in the middle, and is equipped with the pivot in its left and right two ends, and the pivot is rotatably connected with the bearing on the installation riser, the outer wall of drum is equipped with load bearing ring, driven gear ring, bottom follow -up support subassembly is located in the drum bottom, and side part load bearing guide subassembly is located in the drum two sides before and after, side part load bearing guide subassembly includes mounting bracket, load bearing guide wheel, and the outer wall of load bearing guide wheel is attached the load bearing ring outer wall of drum. The utility model discloses a novel ball mill, and its structure design is simple and reasonable, and convenient to use, and bottom follow -up support subassembly, side part load bearing guide subassembly are located in the drum bottom, and the weight of a part of drum is supported, makes the pressure reduction of drum and rotary connection part, and the rotation resistance of drum is reduced.

Description

Technical Field

[0001] This utility model relates to the field of ball mill technology, and in particular to a novel ball mill. Background Technology

[0002] A ball mill is a heavy-duty grinding equipment that uses a rotating drum to drive grinding media to impact and grind materials. The ball mill drum must be supported by a reliable support device; this is a core prerequisite for its safe, stable, and efficient operation. The total weight of the drum itself and its internal grinding media (such as steel balls), materials, liners, etc., can reach tens or even hundreds of tons, and it needs to rotate continuously to complete the grinding operation. Without a suitable support device, the drum simply cannot operate. In existing technology, the two ends of the drum are rotatably connected to the frame via bearings, and its weight is borne by the bearing assemblies at both ends. However, the greater the force on the bearing assemblies, the greater the frictional resistance of the drum rotation, which is detrimental to drum rotation. Simultaneously, the drum is supported at both ends, while the bottom of the middle section is suspended, subjecting the middle section to immense downward pressure, increasing the probability of drum deformation. Over time, this affects normal operation and service life. Furthermore, most existing ball mills use drive belts to drive the drum rotation. Utility Model Content

[0003] The purpose of this utility model is to provide a new type of ball mill with a simple and reasonable structural design and convenient use; the bottom follow-up support component and the side load-bearing guide component are located at the bottom of the drum to help support part of the weight of the drum, thereby reducing the pressure between the drum and the rotating connection and reducing the rotational resistance of the drum.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0005] A novel ball mill includes a mounting frame, a drum, a geared motor, a driving gear, a driven gear ring, a transmission chain, a bottom follower support assembly, and a side load-bearing guide assembly;

[0006] The mounting frame includes a left mounting frame and a right mounting frame; the left mounting frame and the right mounting frame are arranged in parallel at intervals, and each of them is provided with a bearing mounting seat and a bearing at its top.

[0007] The roller is a tank with an inner cavity in the middle, and rotating shafts are provided at its left and right ends; the rotating shafts are rotatably connected to bearings on the mounting frame. The outer wall of the roller is provided with a load-bearing ring and a driven gear ring.

[0008] The geared motor is located on one side of the mounting frame, and its output shaft is fitted with a drive gear. The two ends of the transmission chain are respectively fitted onto the drive gear and the driven gear ring, and are meshed with the drive gear and the driven gear ring. The geared motor drives the drum to rotate.

[0009] The bottom follow-up support assembly is located at the bottom of the roller (directly below), and the side load-bearing guide assembly is located on the front and rear sides of the roller (slanted below).

[0010] The side load-bearing guide assembly includes a mounting frame and a load-bearing guide wheel; the mounting frame is provided with guide wheel mounting seats on the front and rear sides respectively, and the guide wheel mounting seats are provided with bearing seats and bearings; the load-bearing guide wheel is rotatably connected to the guide wheel mounting seats; the outer wall of the load-bearing guide wheel is in contact with the outer wall of the load-bearing ring of the roller;

[0011] The bottom follower support assembly includes a mounting base, a hydraulic cylinder, a slide, a follower turntable, and tapered roller bearings. The mounting base is horizontally arranged and includes a left seat and a right seat, which are parallel and spaced apart. The slide includes a bearing housing, tapered roller bearings, and two optical shafts. The bearing housing is horizontally arranged, with its front and rear ends respectively connected to the horizontally arranged optical shafts, and has a bearing mounting cavity on it. The tapered roller bearing is installed inside the bearing mounting cavity. The tapered roller bearing includes an inner ring, an outer ring, a cage, and several tapered rollers. The outer wall of the outer ring is connected to the inner wall of the bearing mounting cavity, and the top of the inner ring is connected to the follower turntable.

[0012] The left and right seats are each equipped with two horizontally arranged linear bearings; the left and right ends of the optical axis are respectively inserted into the linear bearings and slidably connected to them. The left and right ends of the optical axis are also equipped with limiting rings to prevent the ends from being pulled out of the linear bearings when the optical axis moves.

[0013] The follower turntable is used to support the roller of the ball mill. It is located in the middle of the bottom of the roller and supports some of the roller's weight. Since the roller rotates when it is working, the follower turntable also needs to rotate with the roller.

[0014] The follower turntable is disc-shaped and horizontally arranged. Its outer wall is a conical surface, its top is provided with a dust cover plate, and its bottom is provided with a limiting annular groove.

[0015] The bottom of the follower turntable is fitted onto the top of the inner ring; the top of the inner ring is located within the limiting annular groove;

[0016] The bottom of the follower turntable is also provided with a limiting protrusion ring, and the bearing mounting cavity is provided with a limiting ring groove, and the limiting protrusion ring is inserted into the limiting ring groove.

[0017] A hydraulic cylinder is horizontally mounted above the right (or left) seat, and the output shaft of the hydraulic cylinder is connected to the slide block; the hydraulic cylinder pushes and pulls the slide block, causing the slide block to move left and right.

[0018] The beneficial effects of this utility model are:

[0019] Its structural design is simple and reasonable, and it is easy to use. The bottom follow-up support component and the side load-bearing guide component are located at the bottom of the roller to help support part of the roller's weight, thereby reducing the pressure between the roller and the rotating connection and reducing the roller's rotation resistance. Its support power is flexible hydraulic pressure, which can buffer and protect the stressed components.

[0020] Compared to belt drives, this application uses gears and chains for power transmission, resulting in less power loss and more stable and efficient power output. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a novel ball mill according to the present invention;

[0022] Figure 2 This is a right view of a novel ball mill according to the present invention;

[0023] Figure 3 This is a rear view of a novel ball mill according to the present invention (the side load-bearing guide assembly is omitted);

[0024] Figure 4 This is a schematic diagram of the bottom follow-up support component of this utility model;

[0025] Figure 5 This is a front view of the bottom follow-up support component of this utility model;

[0026] Figure 6 for Figure 5 Cross-sectional view along the BB direction;

[0027] Figure 7 for Figure 6 Axonometric drawing;

[0028] Figure 8 This is a right view of the bottom follow-up support component of this utility model;

[0029] Figure 9 for Figure 8 A cross-sectional view along the CC direction. Detailed Implementation

[0030] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0031] like Figures 1-9As shown, a novel ball mill includes a mounting frame, a drum 2, a geared motor 3, a driving gear 4, a driven gear ring 22, a transmission chain 6, a bottom follower support assembly 7, and a side load-bearing guide assembly 8.

[0032] The mounting frame includes a left mounting frame 11 and a right mounting frame 12; the left mounting frame 11 and the right mounting frame 12 are arranged in parallel at intervals, and each of them is provided with a bearing mounting seat 13 and a bearing 14 at its top.

[0033] The roller 2 is a tank with an inner cavity in the middle, and rotating shafts 21 are provided at its left and right ends; the rotating shafts 21 are rotatably connected to the bearings 14 on the mounting frame 1. The outer wall of the roller 2 is provided with a load-bearing ring 21 and a driven gear ring 22. The roller 2 is also provided with a feed inlet and a discharge outlet.

[0034] The geared motor 3 is located on one side of the mounting frame, and the outer wall of its output shaft is fitted with a drive gear 4; the two ends of the transmission chain 6 are respectively fitted on the drive gear 4 and the driven gear ring 22, and are meshed with the drive gear 4 and the driven gear ring 22; the geared motor 3 drives the roller 2 to rotate.

[0035] The bottom follow-up support component 7 is located at the bottom (directly below) of the roller 2, and the side load-bearing guide component 8 is located on the front and rear sides (slanted below) of the roller 2.

[0036] The side load-bearing guide assembly 8 includes a mounting frame 81 and a load-bearing guide wheel 82; the mounting frame 81 is provided with guide wheel mounting seats on the front and rear sides respectively, and the guide wheel mounting seats are provided with bearing seats and bearings; the load-bearing guide wheel 82 is rotatably connected to the guide wheel mounting seats; the outer wall of the load-bearing guide wheel 82 is in contact with the outer wall of the load-bearing ring 21 of the roller 2; when the roller 2 rotates, the load-bearing guide wheel 82 also rotates passively, and can bear part of the weight of the roller 2 at the same time.

[0037] The bottom follow-up support assembly 7 includes a mounting base 71, a hydraulic cylinder 72, a slide 73, a follow-up turntable 74, and a tapered roller bearing 75;

[0038] The mounting base 71 is horizontally arranged, including a left base 711 and a right base 712, which are arranged in parallel at intervals.

[0039] The slide 73 includes a bearing housing 731 and two optical shafts 732. The bearing housing 731 is horizontally arranged, with its front and rear ends respectively connected to the horizontally arranged optical shafts 732, and has a bearing mounting cavity 730 on it. A tapered roller bearing 75 is installed in the bearing mounting cavity 730. The tapered roller bearing 75 includes an inner ring 751, an outer ring 752, a cage, and a plurality of tapered rollers 753. The outer wall of the outer ring 752 is connected to the inner wall of the bearing mounting cavity 30, and the top of the inner ring 751 is connected to the follower turntable 74. A plurality of tapered rollers 753 are disposed between the inner ring 751 and the outer ring 752.

[0040] The left seat 711 and the right seat 712 are each provided with two horizontally arranged linear bearings 713; the left and right ends of the optical axis 732 are respectively inserted into the linear bearings 713 and are slidably connected to the linear bearings 713. The left and right ends of the optical axis 732 are also provided with limiting rings 733 to prevent the ends of the optical axis 732 from being pulled out of the linear bearings 713 when the optical axis 732 moves.

[0041] The follower turntable 74 is used to support the roller 2 of the ball mill. It is located in the middle of the bottom of the roller 2 and supports some of the weight of the roller 2. Since the roller 2 rotates when it is working, the follower turntable 74 also needs to rotate with the roller 2.

[0042] The follower turntable 74 is disc-shaped and horizontally arranged. Its outer wall is a conical surface 741, and its bottom is provided with a limiting annular groove 740.

[0043] The bottom of the follower turntable 74 is fitted onto the top of the inner ring 751; the top of the inner ring 751 is located within the limiting annular groove 740.

[0044] The bottom of the follower turntable 74 is also provided with a limiting protrusion ring 743, and the bearing mounting cavity 30 is provided with a limiting ring groove 744, and the limiting protrusion ring 743 is inserted into the limiting ring groove 744.

[0045] A hydraulic cylinder 72 is horizontally mounted above the right seat 712 (or left seat 711), and the output shaft 21 of the hydraulic cylinder 72 is connected to the slide 73; the hydraulic cylinder 72 pushes and pulls the slide 73, causing the slide 73 to move left and right.

[0046] The side wall of the load-bearing ring 21 near the follower turntable 74 is a conical surface 721. When the drum 2 needs the assistance of a new type of ball mill to bear a certain amount of weight, the hydraulic cylinder 72 pushes the slide 73 to move, so that the conical surface 741 of the follower turntable 74 fits against the conical surface 721 of the load-bearing ring 21 of the drum 2, thereby bearing part of the weight; as the hydraulic cylinder 72 continues to push, the conical surface 741 can also slightly push against the conical surface 721, causing the middle section of the drum 2 to rise slightly, thereby bearing more weight, or offsetting the slight downward movement of the middle section of the drum 2 caused by gravity. At the same time, when the drum 2 rotates, the follower turntable 74 supports the drum 2 and is driven to rotate by the drum 2. The follower turntable 74 rotates horizontally, and the drum 2 rotates in its radial direction.

[0047] Optionally, the outer ring 752 is integrally formed with the slide block 73.

[0048] Optionally, a dust cover 22 is provided on the outside of the output shaft of the hydraulic cylinder 72.

[0049] Optionally, the slide 73 and the optical axis 732 are integrally formed.

[0050] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and alterations to these embodiments without departing from the principles and spirit of this utility model will still fall within the protection scope of this utility model.

Claims

1. A novel ball mill, characterized in that: Includes mounting frame, rollers, geared motor, drive gear, driven gear ring, transmission chain, bottom follower support assembly, and side load-bearing guide assembly; The mounting frame includes a left mounting frame and a right mounting frame; the left mounting frame and the right mounting frame are arranged in parallel at intervals, and each of them is provided with a bearing mounting seat and a bearing at its top. The roller is a tank with an inner cavity in the middle, and rotating shafts are provided at its left and right ends; the rotating shafts are rotatably connected to bearings on the mounting frame; the outer wall of the roller is provided with a load-bearing ring and a driven toothed ring; The geared motor is located on one side of the mounting frame, and its output shaft is fitted with a drive gear; the two ends of the transmission chain are respectively fitted onto the drive gear and the driven gear ring, and are meshed with the drive gear and the driven gear ring; the geared motor drives the drum to rotate. The bottom follow-up support assembly is located at the bottom of the roller, and the side load-bearing guide assembly is located on the front and rear sides of the roller; The side load-bearing guide assembly includes a mounting frame and a load-bearing guide wheel; the mounting frame is provided with guide wheel mounting seats on the front and rear sides respectively, and the guide wheel mounting seats are provided with bearing seats and bearings; the load-bearing guide wheel is rotatably connected to the guide wheel mounting seats; the outer wall of the load-bearing guide wheel is in contact with the outer wall of the load-bearing ring of the roller.

2. The novel ball mill according to claim 1, characterized in that: The bottom follow-up support assembly includes a mounting base, a hydraulic cylinder, a slide, a follow-up turntable, and tapered roller bearings; The mounting base is horizontally arranged and includes a left base and a right base, which are arranged parallel to each other at intervals. The slide includes a bearing housing and two optical shafts; the bearing housing is horizontally arranged, with its front and rear ends respectively connected to the horizontally arranged optical shafts, and a bearing mounting cavity is provided on it; a tapered roller bearing is provided in the bearing mounting cavity; the tapered roller bearing includes an inner ring, an outer ring, a cage, and a plurality of tapered rollers; the outer wall of the outer ring is connected to the inner wall of the bearing mounting cavity, and the top of the inner ring is connected to the follower turntable; The left and right seats are each equipped with two horizontally arranged linear bearings; the left and right ends of the optical axis are respectively inserted into the linear bearings and slidably connected to the linear bearings. The follower turntable is disc-shaped and horizontally arranged. Its outer wall is a conical surface, its top is provided with a dust cover plate, and its bottom is provided with a limiting annular groove. The bottom of the follower turntable is fitted onto the top of the inner ring; the top of the inner ring is located within the limiting annular groove; A hydraulic cylinder is horizontally mounted above the right seat, and the output shaft of the hydraulic cylinder is connected to the slide block; the hydraulic cylinder pushes and pulls the slide block, causing the slide block to move left and right.

3. The novel ball mill according to claim 2, characterized in that: The bottom of the follower turntable is also provided with a limiting protrusion ring, and the bearing mounting cavity is provided with a limiting ring groove, and the limiting protrusion ring is inserted into the limiting ring groove.

4. The novel ball mill according to claim 3, characterized in that: The optical axis is also provided with limiting rings at its left and right ends.

5. The novel ball mill according to claim 4, characterized in that: The output shaft of the hydraulic cylinder is equipped with a dust cover.

6. The novel ball mill according to any one of claims 2-5, characterized in that: The outer ring and the slide are integrally formed.

7. The novel ball mill according to claim 5, characterized in that: The slide block and the optical axis are integrally formed.

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