Wheel belt type energy-saving ball mill

Abstract

The invention relates to a wheel belt type energy-saving ball mill which comprises a supporting frame and a barrel rotationally connected to the supporting frame, a feeding port and a discharging port are formed in the two sides of the barrel respectively, a driving device is arranged on the barrel, an energy storage gear ring is arranged on the barrel, an energy storage device is arranged on one side of the barrel, and a lifting device is arranged on the lower side of the barrel. By arranging the energy storage gear ring to be matched with the energy storage device and the lifting device, the energy storage gear can be connected with the energy storage device and the lifting device through the motor at the moment that the ball mill is powered off and shut down, and energy is provided for the energy storage device and the lifting device through rotation inertia generated after the ball mill is shut down; the energy storage device can release energy to drive the barrel to rotate when the barrel is started next time so as to reduce starting energy consumption, and the lifting device can enable the barrel to be driven from a static state more easily in a friction reducing mode by reducing pressure between the barrel and the supporting frame. And the ball mill can be started without consuming external electric energy, so that the technical problem of starting energy consumption is fundamentally solved.

Description

Technical Field

[0001] The invention relates to the technical field of ball mills, and in particular to a belt-type energy-saving ball mill. Background Art

[0002] The pulley ball mill is a mechanical device that uses steel balls as grinding media. It is one of the commonly used equipment for grinding or grinding. This machine puts steel balls and other materials into a rotating drum, and crushes the materials by the impact of the falling grinding body and the grinding effect between the grinding body and the inner wall of the ball mill. When the ball mill rotates, due to the friction between the grinding body and the inner wall of the ball mill, the grinding body is brought up and then falls down in the direction of rotation, so that the material is continuously crushed. According to the shape of the body, ball mills can be divided into three types: cylindrical ball mills, conical ball mills and tube mills (also called tube mills).

[0003] Wheeled ball mills are widely used in cement, silicate products, new building materials, refractory materials, fertilizers, non-ferrous metal beneficiation, glass and ceramics and other production industries to grind various ores and other grindable materials in dry or wet manner. The design of this machine enables it to efficiently crush materials to the required fineness to meet the needs of different industrial fields.

[0004] In addition, the belt wheel ball mill can also be divided into two categories according to whether it is equipped with a computer control device: a traditional ball mill and an intelligent ball mill. The intelligent ball mill has a higher degree of automation and precise control capabilities, and can better meet the needs of modern industrial production. Whether it is a traditional or intelligent type of belt wheel ball mill, they are both important equipment that cannot be ignored in industrial production.

[0005] As a common grinding equipment, the pulley ball mill has energy consumption problems during operation. These problems mainly include: starting method, processing capacity, sand return energy consumption and operating load fluctuation;

[0006] Among them, the reason for the energy consumption problem at startup is that the impact on the power grid at the moment of startup is very large, and the power consumption is extremely large. Early starting methods such as auto-step-down starting will cause high current and increase the burden on the power grid. Although modern soft starting methods have been improved, the starting current is still 4 to 5 times the rated current of the motor, causing a large current impact on the transformer power grid and increasing voltage fluctuations.

[0007] Therefore, the energy consumption of starting the ball mill will generate a large amount of electrical energy consumption. Based on this technical problem, the invention patent with patent announcement number CN111215202A discloses a cement ball mill with dust removal function, including a main body, a bottom plate and two mounting bearings, as well as a dust removal mechanism and two energy-saving mechanisms. The dust removal mechanism includes a drive assembly, an exhaust pipe, a purification box, an air intake pipe, a first one-way valve, two filters, two exhaust pipes, two second one-way valves, two sliding rods, two piston blocks, two transmission rods, two fixed sleeves and four support assemblies. The energy-saving mechanism includes a generator, a one-way bearing, a transmission rack and a second gear. The drive assembly includes a motor, a first gear and an annular rack. The support assembly includes a support sleeve, a spring and a support rod.

[0008] The above patent can absorb dust generated during the production of the ball mill through the dust removal mechanism, thereby improving the environmental performance of the ball mill, and can generate electric energy for the ball mill through the energy-saving mechanism, thereby improving the energy-saving performance of the ball mill.

[0009] Its energy-saving mechanism is still to increase the energy consumption during the movement of the ball mill and store it in the generator, regardless of the consumption during the conversion of electric energy, so as to achieve the purpose of collecting part of the electric energy to reduce the starting equipment. In fact, it is a technical means to increase the energy consumption during operation and cannot avoid the technical problem of starting energy consumption. Summary of the invention

[0010] The invention provides a belt-type energy-saving ball mill to solve the technical problem of energy consumption during startup of the existing ball mill.

[0011] The present invention discloses a wheel-belt type energy-saving ball mill, comprising a support frame, a cylinder, a feed port, a discharge port and a driving device, wherein the cylinder is rotatably connected to the support frame, the feed port and the discharge port are respectively arranged on both sides of the cylinder, the cylinder is provided with a driving device for driving the cylinder to rotate, the cylinder is provided with an energy storage gear ring, one side of the cylinder is provided with an energy storage device, and the lower side of the cylinder is provided with a lifting device.

[0012] Through the above technical solution, when the ball mill stops due to power failure, the first motor and the second motor rotate to connect the energy storage gear with the energy storage device. The inertia of the ball mill after stopping is used to provide energy to the energy storage device through the energy storage gear ring. The energy storage device can release energy to drive the cylinder to start rotating at the next start, thereby reducing the energy consumption at start-up. The lifting device can reduce the pressure between the cylinder and the support frame, thereby reducing friction and making it easier for the cylinder to be driven from a stationary state. The ball mill does not need to consume external electrical energy when it starts, thus fundamentally solving the technical problem of energy consumption at start-up.

[0013] Furthermore, the energy storage device includes a main bracket arranged on one side of the cylinder body, an energy storage cylinder is fixedly arranged on the main bracket, the energy storage cylinder is connected to an energy storage gear, an energy storage motor frame is arranged on the main bracket, and the energy storage motor frame is provided with a first opening and closing structure, the first opening and closing structure can control the energy storage gear to disconnect or rotate synchronously with the energy storage gear ring, and the energy storage gear is provided with a self-locking device.

[0014] Through the above technical solution, the energy storage device can use the inertia of the ball mill drum to store energy after the ball mill is shut down, and after storing energy, it is locked by the self-locking device to provide the energy required for the initial rotation when the ball mill is started next time.

[0015] Furthermore, the energy storage cylinder includes a fixed cylinder, which is slidably connected to the main bracket through a slide, and a plurality of energy storage torsion springs are arranged in the fixed cylinder, one end of the plurality of energy storage torsion springs is fixedly connected to the fixed cylinder, and the other end is fixedly connected to the energy storage gear through a connecting shaft.

[0016] Through the above technical solution, the storage energy of the energy storage device can be increased. By connecting multiple energy storage torsion springs in parallel, a larger force can be generated, which is sufficient to overcome the friction resistance between the cylinder of the ball mill and the bearing in the support frame when starting, ensuring that the ball mill can be started.

[0017] Furthermore, the first opening and closing structure includes a first motor arranged on the energy storage motor frame, the output shaft of the first motor is connected to a first opening and closing rod, the first opening and closing rod is rotatably connected to a first connecting gear at one end away from the first motor, the first connecting gear is meshed with the energy storage gear ring, and the first connecting gear can be meshed with the energy storage gear.

[0018] Through the above technical solution, the energy storage device can use a purely mechanical structure to store energy. When in use, there is no need to use high-priced components such as batteries, generators, and motors, which reduces the cost of components required for the present invention and is more practical.

[0019] Furthermore, the self-locking device includes a ratchet fixedly connected to the energy storage gear, a connecting rod 23 is fixedly connected to the energy storage motor frame, and a pawl is rotatably connected to one end of the connecting rod 23 away from the energy storage motor frame. A reset torsion spring is arranged between the pawl and the connecting rod 23, and the pawl cooperates with the ratchet to form a ratchet pawl structure.

[0020] Through the above technical scheme, the characteristics of the ratchet pawl structure are cleverly utilized, so that the ratchet can only rotate after the ratchet is away from the pawl for a certain distance. Therefore, it can be ensured that after the energy storage gear and the energy storage gear ring are initially meshed, the ratchet pawl structure opens to prevent the energy storage gear from idling under the action of the energy storage torsion spring, which causes the technical risk of the energy storage gear and the energy storage gear ring colliding and damaging the teeth. Therefore, it can be ensured that the energy storage device is not disturbed when storing energy, and the stability of the entire energy storage device after energy storage can be guaranteed. When the ball mill is started and used, the ratchet pawl structure of a reasonable size can be set through calculation through the distance between the energy storage gear and the energy storage gear ring, thereby ensuring the feasibility of the entire device.

[0021] Furthermore, an arc groove is provided on one side of the slide close to the energy storage motor frame, a side rod is provided on the first opening and closing rod, an end of the side rod away from the first opening and closing rod is rotatably connected to a driving column, and the driving column is inserted into the arc groove at one end away from the side rod to drive the slide to move.

[0022] Through the above technical solution, the energy storage cylinder and the energy storage gear ring can be moved closer to or away from the cylinder body, thereby adjusting the distance between the energy storage gear and the energy storage gear ring, and finally achieving the technical effect of the energy storage gear and the energy storage gear ring meshing and opening.

[0023] Furthermore, the lifting device includes a base plate, a lifting platform is provided on the base plate, the lifting platform is driven by a screw, a screw gear is provided at one end of the screw, a lifting motor frame is provided on the base plate, a second opening and closing structure is provided on the lifting motor frame, the screw gear is driven by the second opening and closing structure, and a plurality of lifting parts are provided on the lifting platform.

[0024] Through the above technical solution, the lifting work of the cylinder can be realized, the pressure between the cylinder and the bearings in the support frame can be reduced, the friction can be reduced, and the mechanical life of the bearings in the support frame can be increased.

[0025] Furthermore, the second opening and closing structure includes a second motor arranged on the lifting motor frame, the output shaft of the second motor is connected to a second opening and closing rod, the second opening and closing rod is rotatably connected to a second connecting gear at one end away from the second motor, the second connecting gear is meshed with the energy storage gear ring, and the second connecting gear and the screw gear can be transmitted through a transmission gear.

[0026] Through the above technical solution, the energy generated by inertia after power failure and shutdown can be used to drive the screw to rotate through the energy storage gear ring, thereby providing power for the lifting platform.

[0027] Furthermore, the lifting member includes a wheel frame fixed on the lifting platform, the wheel frame is slidably connected to a support block, a spring is provided between the support block and the wheel frame, and an abutment wheel is rotatably connected to the wheel frame.

[0028] Through the above technical solution, the lifting device can have a certain shock-absorbing effect.

[0029] Furthermore, a first limit block for limiting the rotation angle of the first opening and closing rod is provided on the energy storage motor frame, and a second limit block for limiting the rotation angle of the second opening and closing rod is provided on the lifting motor frame.

[0030] The above technical solution can prevent the first motor or the second motor from being operated incorrectly, thereby preventing components in the energy storage device and the lifting device from being damaged.

[0031] The present invention provides the following technical effects:

[0032] 1. The ball mill can provide and store energy through its own inertia after power failure and shutdown, and release it when it needs to be started next time to drive the ball mill to start rotating, so that the ball mill does not need to consume external electric energy to start, thus fundamentally solving the technical problem of energy consumption at startup.

[0033] 2. The ball mill can provide energy through its own inertia after power failure and shutdown, driving the bottom structure to lift the ball mill cylinder, thereby reducing the pressure between the cylinder and the bracket and reducing the energy consumption required for starting the ball mill.

[0034] 3. It can absorb the vibration of the cylinder during the operation of the ball mill, making the operation of the ball mill more stable.

[0035] The foregoing general description and the following description are exemplary and explanatory only and are not intended to limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] One or more embodiments are exemplarily described by corresponding drawings, and these exemplary descriptions and drawings do not limit the embodiments. Elements with the same reference numerals in the drawings are regarded as similar elements, and wherein:

[0037] Figure 1 It is a schematic diagram of the overall structure of a belt-type energy-saving ball mill of the present invention;

[0038] Figure 2 It is a schematic diagram of the overall structure of a belt-type energy-saving ball mill of the present invention from another perspective;

[0039] Figure 3 It is a schematic diagram of the explosion structure of an energy storage device in a belt-type energy-saving ball mill of the present invention;

[0040] Figure 4 It is a schematic diagram of the exploded structure of a lifting device in a belt-type energy-saving ball mill of the present invention;

[0041] Figure 5It is a schematic diagram of the states of an energy storage device and a lifting device in a belt-type energy-saving ball mill when the mill is stopped;

[0042] Figure 6 It is a schematic diagram of the states of an energy storage device and a lifting device in a belt-type energy-saving ball mill during startup of the present invention;

[0043] Figure 7 yes Figure 5 A1 is an enlarged schematic diagram;

[0044] Figure 8 yes Figure 6 A2 is an enlarged schematic diagram;

[0045] Fig. 9 yes Figure 5 A magnified schematic diagram of B1 in the middle;

[0046] Fig.10 yes Figure 6 A magnified schematic diagram of B2 in the figure.

[0047] Reference numerals:

[0048] 1. Support frame; 2. Cylinder; 3. Feeding port; 4. Discharging port; 5. Driving device; 6. Energy storage gear ring; 7. Energy storage device; 8. Lifting device; 9. Main bracket; 10. Energy storage cylinder; 11. Energy storage gear; 12. Energy storage motor frame; 13. First opening and closing structure; 14. Self-locking device; 15. Fixed cylinder; 16. Slide; 17. Energy storage torsion spring; 18. Connecting shaft; 19. First motor; 20. First opening and closing rod; 21. First connecting gear; 22. Ratchet; 23. Connecting Connecting rod; 24, ratchet; 25, reset torsion spring; 26, arc groove; 27, side rod; 28, driving column; 29, bottom plate; 30, lifting platform; 31, screw rod; 32, screw rod gear; 33, lifting motor frame; 34, second opening and closing structure; 35, lifting member; 36, second motor; 37, second opening and closing rod; 38, second connecting gear; 39, transmission gear; 40, wheel frame; 41, support block; 42, abutment wheel; 43, first limit block; 44, second limit block. DETAILED DESCRIPTION

[0049] In order to be able to understand the features and technical contents of the embodiments of the present invention in more detail, the implementation of the embodiments of the present invention is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present invention. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0050] The terms "first", "second", etc. in the description and claims of the embodiments of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so that the embodiments of the embodiments of the present invention described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0051] In the embodiments of the present invention, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly used to better describe the embodiments of the present invention and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present invention can be understood according to the specific circumstances.

[0052] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0053] Unless otherwise specified, the term "plurality" means two or more and "plurality" means two or more.

[0054] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present invention may be combined with each other.

[0055] like Figure 1 , Figure 2As shown, the present invention discloses a wheel-belt type energy-saving ball mill, which includes a support frame 1, a cylinder 2, a feed port 3, a discharge port 4 and a driving device 5. The cylinder 2 is rotatably connected to the support frame 1, and the feed port 3 and the discharge port 4 are respectively arranged on both sides of the cylinder 2. The cylinder 2 is provided with a driving device 5 for driving the cylinder 2 to rotate, and an energy storage gear ring 6 is arranged on the cylinder 2. An energy storage device 7 is arranged on one side of the cylinder 2, and a lifting device 8 is arranged on the lower side of the cylinder 2. The inertia of the rotation of the ball mill after stopping provides energy to the energy storage device 7 through the energy storage gear ring 6. The energy storage device 7 can release energy at the next start, drive the cylinder 2 to start rotating, thereby reducing the startup energy consumption. The lifting device 8 can reduce the pressure between the cylinder 2 and the support frame 1, thereby reducing friction to make it easier for the cylinder 1 to be driven from a static state. The ball mill does not need to consume external electric energy when starting, thereby fundamentally solving the technical problem of startup energy consumption.

[0056] Combined with Figure 3 , Attachment Figure 5-10 The energy storage device 7 includes a main support 9 arranged on one side of the cylinder 2, an energy storage cylinder 10 is fixedly arranged on the main support 9, and the energy storage cylinder 10 is connected to an energy storage gear 11. The energy storage cylinder 10 includes a fixed cylinder 15, and the fixed cylinder 15 is slidably connected to the main support 9 through a slide 16. A plurality of energy storage torsion springs 17 are arranged in the fixed cylinder 15, and one end of the plurality of energy storage torsion springs 17 is fixedly connected to the fixed cylinder 15, and the other end is fixedly connected to the energy storage gear 11 through a connecting shaft 18. The storage energy of the energy storage device 7 can be increased, and a large force can be generated by connecting a plurality of energy storage torsion springs 17 in parallel, so that it is sufficient to overcome the friction resistance between the cylinder 2 of the ball mill and the bearing in the support frame 1 when the ball mill is started, so as to ensure that the start-up of the ball mill can be achieved.

[0057] Combined with Figure 3 , Attachment Figure 5-10 The main support 9 is provided with an energy storage motor frame 12, and the energy storage motor frame 12 is provided with a first opening and closing structure 13. The first opening and closing structure 13 includes a first motor 19 provided on the energy storage motor frame 12, and the output shaft of the first motor 19 is connected with a first opening and closing rod 20, and the first opening and closing rod 20 is rotatably connected with a first connecting gear 21 at one end away from the first motor 19, and the first connecting gear 21 is meshed with the energy storage gear ring 6, and the first connecting gear 21 can be meshed with the energy storage gear 11. The energy storage device 7 can be realized to use a pure mechanical structure to store energy. When in use, there is no need to use high-priced components such as batteries, generators, and motors, which reduces the cost of components required for the present invention and is more practical.

[0058] Combined with Figure 7 , Attachment Figure 8The first opening and closing structure 13 can control the energy storage gear 11 to disconnect or rotate synchronously with the energy storage gear ring 6. The energy storage gear 11 is provided with a self-locking device 14. The self-locking device 14 includes a ratchet 22 fixedly connected to the energy storage gear 11. A connecting rod 23 is fixedly connected to the energy storage motor frame 12. The connecting rod 23 is rotatably connected to one end away from the energy storage motor frame 12 with a pawl 24. A reset torsion spring 25 is provided between the pawl 24 and the connecting rod 23. The pawl 24 cooperates with the ratchet 22 to form a ratchet 22 pawl 24 structure.

[0059] It should be noted that when the device is in use, the characteristics of the ratchet pawl structure are cleverly utilized, so that the ratchet 22 can only rotate after it is away from the pawl 24 for a certain distance. The technical characteristics ensure that after the energy storage gear 11 is initially meshed with the energy storage tooth ring 6, the ratchet pawl structure opens to prevent the energy storage gear 11 from idling under the action of the energy storage torsion spring 17, resulting in the technical risk of the energy storage gear 11 and the energy storage tooth ring 6 colliding and being damaged. This ensures that the energy storage device 7 is not disturbed when storing energy, and ensures the stability of the entire energy storage device 7 after energy storage. When the ball mill is started and used, the ratchet pawl structure of a reasonable size can be set through calculation through the distance between the energy storage gear 11 and the energy storage tooth ring 6, thereby ensuring the feasibility of the entire device.

[0060] Combined with Figure 3 An arc groove 26 is provided on the side of the slide 16 close to the energy storage motor frame 12, and a side rod 27 is provided on the first opening and closing rod 20. The end of the side rod 27 away from the first opening and closing rod 20 is rotatably connected to a driving column 28, and the end of the driving column 28 away from the side rod 27 is inserted in the arc groove 26, which can drive the slide 16 to move.

[0061] Through the above technical solution, at the moment of power failure and shutdown of the ball mill, the first motor 19 is rotated to connect the energy storage gear 11 with the energy storage device 7. The inertia of the rotation of the ball mill after shutdown is used to provide energy to the energy storage device 7 through the energy storage gear ring 6. The energy storage device 7 can release energy to drive the cylinder 2 to start rotating at the next startup, thereby reducing startup energy consumption, so that the ball mill does not need to consume external electrical energy when starting, thereby fundamentally solving the technical problem of startup energy consumption.

[0062] Combined with Figure 4 The lifting device 8 includes a base plate 29 and a lifting platform 30 arranged on the base plate 29. The lifting member 35 includes a wheel frame 40 fixedly arranged on the lifting platform 30. The wheel frame 40 is slidably connected to a support block 41. A spring is arranged between the support block 41 and the wheel frame 40. The wheel frame 40 is rotatably connected to an abutment wheel 42.

[0063] Combined with Fig. 9 , Attachment Fig.10The lifting platform 30 is driven by a screw rod 31, a screw gear 32 is provided at one end of the screw rod 31, a lifting motor frame 33 is provided on the bottom plate 29, and a second opening and closing structure 34 is provided on the lifting motor frame 33. The second opening and closing structure 34 includes a second motor 36 provided on the lifting motor frame 33, and the output shaft of the second motor 36 is connected to a second opening and closing rod 37. The second opening and closing rod 37 is rotatably connected to the second connecting gear 38 at one end away from the second motor 36. The second connecting gear 38 is meshed with the energy storage gear ring 6, and the second connecting gear 38 and the screw gear 32 can be transmitted through a transmission gear 39.

[0064] Combined with Figure 4 The screw gear 32 is driven by the second opening and closing structure 34, and a plurality of lifting members 35 are provided on the lifting platform 30. The lifting members 35 include a wheel frame 40 fixed on the lifting platform 30, the wheel frame 40 is slidably connected to a support block 41, a spring is provided between the support block 41 and the wheel frame 40, and an abutting wheel 42 is rotatably connected to the wheel frame 40.

[0065] It should be noted that after the energy storage gear 6 drives the lifting device 8 to complete the lifting, the second opening and closing mechanism 34 is reset, so that the second connecting gear 38 is disengaged from the energy storage gear ring 6, thereby not affecting the rotation of the cylinder 2. During the rotation of the cylinder 2, the vibration generated will be transmitted to the screw 31 through the lifting member 35 and the lifting platform 30. Since the screw 31 does not have a self-locking function, it will gradually loosen, causing the lifting platform 30 to slowly descend until the lifting member 35 is disengaged from the cylinder 2 again, and it can be reset after stopping again.

[0066] Through the above technical solution, at the moment of power failure and shutdown of the ball mill, the second motor 36 is rotated to connect the energy storage gear 11 with the lifting device 8. The inertia of the rotation of the ball mill after shutdown is used to provide energy to the lifting device 8 through the energy storage gear ring 6, so that the lifting member 35 lifts the cylinder 2 and reduces the pressure between the cylinder 2 and the support frame 1, thereby making it easier for the cylinder 2 to be driven from a stationary state by reducing friction.

[0067] Combined with Figure 6-10 Optionally, a first limit block 43 for limiting the rotation angle of the first opening and closing rod 20 is provided on the energy storage motor frame 12, and a second limit block 44 for limiting the rotation angle of the second opening and closing rod 37 is provided on the lifting motor frame 33.

[0068] The above technical solution can prevent the first motor 19 or the second motor 36 from being operated incorrectly, thereby preventing components in the energy storage device 7 and the lifting device 8 from being damaged.

[0069] Application scenario of an exemplary embodiment:

[0070] The present invention relates to a belt-type energy-saving ball mill. When in use, the cylinder 2 rotates to rub the internal material through the hard spheres preset inside the cylinder, so that the material is continuously crushed.

[0071] After use, the ball mill is powered off and shut down. At this time, the first motor 19 is started synchronously, and the first opening and closing rod 20 in the first opening and closing mechanism is driven to rotate by the first motor 19, driving the first connecting gear 21 to move, so that the first connecting gear 21 is meshed with the energy storage gear ring 6. At the same time, the first connecting gear 21 is meshed with the energy storage gear 11, and the energy storage gear ring 6 is driven to rotate by the inertia of the ball mill barrel 2 after power failure, thereby driving the energy storage gear 11 to rotate through the first connecting gear 21. At this time, the rotation of the energy storage gear 11 drives the connecting shaft 18 to rotate, thereby generating torque, causing a number of energy storage torsion springs 17 located in the energy storage cylinder 10 to be deformed by force, and accumulate a certain amount of energy. At the same time, the ratchet 22 coaxially fixed with the energy storage gear 11 rotates. Since its rotation direction is not restricted by the pawl 24, it can rotate freely. When the energy storage torsion spring 17 has completed energy storage, that is, the cylinder 2 together with the energy storage gear ring 6 stops rotating, the energy storage torsion spring 17 drives the energy storage gear 11 together with the ratchet 22 to rotate in the opposite direction. At this time, the ratchet 22 pawl 24 structure can jam the ratchet 22 and restrict it from rotating in the opposite direction.

[0072] When the ball mill needs to be started, it is not necessary to start the driving device 5 to start it. It is only necessary to drive the first motor 19 to rotate, so that the first opening and closing rod 20 in the first opening and closing mechanism rotates downward, so that the first connecting gear 21 is disengaged from the energy storage gear 11. At the same time, the side rod 27 arranged below the first opening and closing rod 20 moves synchronously with the first opening and closing rod 20, driving the driving column 28 to slide in the arc groove 26, thereby driving the slide 16 to move toward the barrel 2 until the energy storage gear 11 is engaged with the energy storage gear ring 6. When the energy storage gear 11 enters the meshing position with the energy storage gear ring 6, the ratchet 22 and the pawl 24 are separated, and the pawl 24 no longer restricts the rotation of the ratchet 22. The energy storage torsion spring 17 can drive the energy storage gear 11 to rotate, thereby driving the energy storage gear ring 6 and the barrel 2 fixedly connected to the energy storage gear ring 6 to rotate. After the energy storage device 7 drives the barrel 2 to complete the initial rotation, the energy storage device 7 is reset, and only the first connecting gear 21 is engaged with the energy storage gear 11 and then idles or is disengaged from the energy storage gear 11 as a whole. The driving device 5 is started to continue to drive the drum 2 to rotate. The whole process does not require external electric drive, and the drum 2 can complete the process from static to preliminary rotation. Under the premise of not wasting other electric energy, the energy generated by the useless inertia after power failure and shutdown is collected and stored and released when it is needed to start, which solves the technical problem of energy consumption when the ball mill is started.

[0073] While the energy storage device 7 is working, the lifting device 8 is working synchronously. While the ball mill is shut down, the second motor 36 is working, driving the second opening and closing rod 37 in the second opening and closing structure 34 to rotate, and synchronously driving the second connecting gear 38 to move, so that the energy storage gear ring 6, the second connecting gear 38, the transmission gear 39 and the screw gear 32 are meshed, that is, through the transmission of the second connecting gear 38 and the transmission gear 39, the rotation of the energy storage gear ring 6 drives the screw gear 32 to rotate, thereby driving the screw 31 to rotate, and then the lifting member 35 is raised through the lifting platform 30, wherein the structure of the screw 31 driving the lifting platform 30 is a common existing technical means, which will not be described in detail here. After the lifting member 35 is raised, the compression spring can generate more upward force, thereby the lower-order cylinder 2 shares the weight of the cylinder 2 itself, so that the pressure on the two side support frames 1, that is, the bearings in the support frame 1 is greatly reduced, thereby reducing the friction, and achieving the technical effect of making the cylinder 2 easier to rotate.

[0074] Among them, by setting the abutment wheel 42 and the spring under the support block 41, the vibration of the cylinder 2 itself is reduced when the ball mill is working, thereby reducing the damage caused by the vibration to the equipment.

[0075] The above description and the accompanying drawings fully illustrate the embodiments of the present invention so that those skilled in the art can practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. The embodiments of the present invention are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A belt-type energy-saving ball mill, characterized in that: The invention comprises a support frame (1) and a barrel (2) rotatably connected to the support frame (1), a feed port (3) and a discharge port (4) are respectively arranged on both sides of the barrel (2), a driving device (5) for driving the barrel (2) to rotate is arranged on the barrel (2), an energy storage gear ring (6) is arranged on the barrel (2), an energy storage device (7) is arranged on one side of the barrel (2), and a lifting device (8) is arranged on the lower side of the barrel (2).

2. A belt-type energy-saving ball mill according to claim 1, characterized in that: The energy storage device (7) comprises a main support (9) arranged on one side of the cylinder (2); an energy storage cylinder (10) is fixedly arranged on the main support (9); the energy storage cylinder (10) is connected to an energy storage gear (11); an energy storage motor frame (12) is arranged on the main support (9); a first opening and closing structure (13) is arranged on the energy storage motor frame (12); the first opening and closing structure (13) can control the energy storage gear (11) to disconnect from the energy storage gear ring (6) or to rotate synchronously; and a self-locking device (14) is arranged on the energy storage gear (11).

3. A belt-type energy-saving ball mill according to claim 2, characterized in that: The energy storage cylinder (10) comprises a fixed cylinder (15), the fixed cylinder (15) is slidably connected to the main bracket (9) via a slide table (16), a plurality of energy storage torsion springs (17) are arranged in the fixed cylinder (15), one end of the plurality of energy storage torsion springs (17) is fixedly connected to the fixed cylinder (15), and the other end is fixedly connected to the energy storage gear (11) via a connecting shaft (18).

4. A belt-type energy-saving ball mill according to claim 3, characterized in that: The first opening and closing structure (13) comprises a first motor (19) arranged on the energy storage motor frame (12); the output shaft of the first motor (19) is connected to a first opening and closing rod (20); the first opening and closing rod (20) is rotatably connected to a first connecting gear (21) at one end away from the first motor (19); the first connecting gear (21) is meshed with the energy storage gear ring (6); and the first connecting gear (21) can be meshed with the energy storage gear (11).

5. A belt-type energy-saving ball mill according to claim 4, characterized in that: The self-locking device (14) comprises a ratchet (22) fixedly connected to the energy storage gear (11); a connecting rod (23) is fixedly connected to the energy storage motor frame (12); a pawl (24) is rotatably connected to one end of the connecting rod (23) away from the energy storage motor frame (12); a reset torsion spring (25) is arranged between the pawl (24) and the connecting rod (23); and the pawl (24) cooperates with the ratchet (22) to form a ratchet pawl structure.

6. A belt-type energy-saving ball mill according to claim 5, characterized in that: An arc groove (26) is arranged on one side of the slide (16) close to the energy storage motor frame (12); a side rod (27) is arranged on the first opening and closing rod (20); an end of the side rod (27) away from the first opening and closing rod (20) is rotatably connected to a driving column (28); an end of the driving column (28) away from the side rod (27) is inserted into the arc groove (26) to drive the slide (16) to move.

7. The belt-type energy-saving ball mill according to claim 1, characterized in that: The lifting device (8) comprises a base plate (29), a lifting platform (30) is arranged on the base plate (29), the lifting platform (30) is driven by a screw rod (31), one end of the screw rod (31) is arranged with a screw gear (32), a lifting motor frame (33) is arranged on the base plate (29), a second opening and closing structure (34) is arranged on the lifting motor frame (33), the screw gear (32) is driven by the second opening and closing structure (34), and a plurality of lifting members (35) are arranged on the lifting platform (30).

8. A belt-type energy-saving ball mill according to claim 7, characterized in that: The second opening and closing structure (34) includes a second motor (36) arranged on the lifting motor frame (33), the output shaft of the second motor (36) is connected to a second opening and closing rod (37), the second opening and closing rod (37) is rotatably connected to a second connecting gear (38) at one end away from the second motor (36), the second connecting gear (38) is meshed with the energy storage gear ring (6), and the second connecting gear (38) and the screw gear (32) can realize transmission through a transmission gear (39).

9. A belt-type energy-saving ball mill according to claim 8, characterized in that: The lifting member (35) comprises a wheel frame (40) fixedly mounted on the lifting platform (30); the wheel frame (40) is slidably connected to a support block (41); a spring is arranged between the support block (41) and the wheel frame (40); and an abutment wheel (42) is rotatably connected to the wheel frame (40).

10. The belt-type energy-saving ball mill according to claim 1, characterized in that: The energy storage motor frame (12) is provided with a first limit block (43) for limiting the rotation angle of the first opening and closing rod (20), and the lifting motor frame (33) is provided with a second limit block (44) for limiting the rotation angle of the second opening and closing rod (37).

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