Steel rubber composite ball mill lifting strip
By designing the steel-rubber composite ball mill lifting bars, the problems of wear resistance and connection stability of traditional lifting bars are solved, achieving efficient grinding and self-lubrication, and improving the crushing efficiency and equipment stability of the ball mill.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 江苏圣耐普特矿山设备制造有限公司
- Filing Date
- 2025-06-23
- Publication Date
- 2026-07-03
AI Technical Summary
Traditional ball mill riser bars have poor wear resistance and are prone to wear when processing high-hardness materials. Furthermore, their connection is not stable enough, which affects production continuity and maintenance costs.
The steel-rubber composite ball mill lifting bars are adopted. Through the sliding connection between the inverted trapezoidal guide groove and the slide, the wavy curved surface design, the setting of self-lubricating groove and oil storage cavity, and the gradient composite transition layer, the connection stability and self-lubricating performance are improved, and the grinding effect is enhanced.
It improves the grinding efficiency and equipment stability of the ball mill, reduces maintenance costs and wear frequency, and ensures structural stability and grinding quality during long-term high-intensity operation.
Smart Images
Figure CN224443179U_ABST
Abstract
Description
Technical Field
[0001] This utility model specifically relates to the field of ball mill lifting bar technology, and more specifically to a steel-rubber composite ball mill lifting bar. Background Technology
[0002] In modern industrial production, ball mills, as core equipment for material crushing and processing, are widely used in mining, building materials, chemical and other fields. The lifting bars, as a key component inside the ball mill, directly affect the mill's working efficiency and service life.
[0003] Traditional ball mill lifting bars are mostly made of a single material. For example, metal lifting bars have high hardness and good initial crushing effect, but they have poor wear resistance when facing high-hardness materials and are prone to rapid wear. Frequent replacement not only increases maintenance costs but also affects production continuity. On the other hand, rubber lifting bars have good wear resistance and lightness, but due to their high elasticity and low hardness, they are difficult to provide sufficient rigid impact force to the grinding media. Therefore, they have low crushing efficiency when processing materials with high hardness and large particle size.
[0004] However, there is still room for improvement in the structural design and functional implementation of current steel-rubber composite lifting bars. For example, the connection between the lifting bar and the cylinder may not be stable enough, making it difficult to withstand long-term, high-intensity working environments; further improvements are also needed in lubrication and wear resistance. Utility Model Content
[0005] The purpose of this utility model is to provide a steel-rubber composite ball mill lifting bar, which, by installing the steel-rubber composite ball mill with the ball mill frame, enables the steel-rubber composite ball mill to achieve efficient grinding and pulverization while improving its self-lubricating performance; thus solving the technical problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A steel-rubber composite ball mill lifting bar, comprising
[0008] A ball mill frame, on the upper part of which a steel-rubber composite ball mill is installed;
[0009] The steel-rubber composite ball mill includes a cylinder with a dust collection port at the upper end. The lower end of the dust collection port is connected to the inner cavity of the cylinder. The outer surface of the cylinder is connected to a belt. Multiple inverted trapezoidal guide grooves are arranged in a ring array on the inner side of the cylinder. The inner side of the multiple inverted trapezoidal guide grooves is slidably connected to multiple slides. An inner lifting bar is fixedly installed on the upper surface of each slide. The upper end of the inner lifting bar is set with a wavy curved surface.
[0010] As a further technical solution of this utility model, one end of the inner lifting bar is provided with an oil injection nozzle, which is connected to the oil storage cavity inside the inner lifting bar. The upper surface of the inner lifting bar is symmetrically provided with multiple sets of self-lubricating grooves, and the lower end of the self-lubricating groove is connected to the oil storage cavity inside the lifting bar.
[0011] As a further technical solution of this utility model, a gradient composite transition layer is provided between the inverted trapezoidal guide groove, slide and inner lifting bar and another set of adjacent inverted trapezoidal guide grooves, slide and inner lifting bars.
[0012] As a further technical solution of this utility model, the two ends of the cylinder are connected to the symmetrically arranged fixing plates by bolts. The side of the fixing plate connected to the cylinder is provided with an inverted trapezoidal guide rail arranged in a ring array, and side lifting bars are slidably connected to the inverted trapezoidal guide rail.
[0013] As a further technical solution of this utility model, the other side of the symmetrically arranged fixed plates is fixedly installed with rotating shafts, one of which is a feeding shaft and the other is a discharging shaft. The outer sides of both rotating shafts are rotatably connected to the bearing seats.
[0014] As a further technical solution of this utility model, the bearing seats are symmetrically installed on the upper surface of the base frame, a motor frame is installed on one side of the base frame, a motor is fixedly installed on the motor frame, and the end of the motor is connected to the belt.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] This invention features a sliding connection between the inverted trapezoidal guide groove and the slide block, which provides stronger connection stability and effectively prevents the lifting bars inside the cylinder from loosening or falling off under the high-speed rotation and strong impact of the ball mill. At the same time, this structure is easy to disassemble and install. When the lifting bars inside the cylinder are worn or damaged, the slide block and the lifting bars inside the cylinder can be quickly replaced, which greatly shortens the equipment maintenance time and reduces maintenance costs.
[0017] The wavy curved surface design of the upper end of the lifting bar inside the cylinder causes irregular movement of the grinding media and materials during the rising and falling process, which increases the collision and grinding opportunities between materials and effectively improves the crushing rate of materials. It is especially suitable for processing materials with high hardness and large particle size.
[0018] In this invention, the self-lubricating groove and oil storage chamber enable the self-lubricating function of the lifting bar inside the cylinder, reducing friction and wear between the lifting bar and the grinding media and materials, reducing the frequency of equipment replacement due to lifting bar wear, and further improving the operational stability and reliability of the equipment.
[0019] In this invention, the presence of a gradient composite transition layer effectively alleviates the stress concentration problem caused by the material performance differences between two adjacent sets of inverted trapezoidal guide grooves, slides, and internal lifting bars, preventing damage to components due to excessive stress, ensuring the structural stability of the ball mill during long-term, high-intensity operation, and reducing the probability of equipment failure.
[0020] In this invention, the side lifting strips on the fixed plate cooperate with the inverted trapezoidal guide rail to assist in lifting and guiding the grinding media and materials, making the movement of materials in the cylinder more uniform, avoiding local over-grinding or insufficient grinding, and further improving the grinding quality and product consistency. Attached Figure Description
[0021] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0022] Figure 2 This utility model Figure 1 Top view.
[0023] Figure 3 This utility model Figure 1 A schematic diagram of the split structure.
[0024] Figure 4 This utility model Figure 3 Top view.
[0025] Figure 5 This utility model Figure 3 A partial structural diagram.
[0026] Figure 6 This utility model Figure 5 A magnified view of a portion of the image.
[0027] In the diagram: 1-ball mill frame, 2-steel-rubber composite ball mill;
[0028] 11-Base frame, 12-Bearing seat, 13-Motor frame, 14-Rotating shaft, 15-Fixing plate, 16-Inverted trapezoidal guide rail, 17-Side lifting bar, 18-Motor, 19-Belt;
[0029] 21-Cylinder body, 22-Dust collection port, 23-Inverted trapezoidal guide groove, 24-Slide seat, 25-Inner cylinder lifting bar, 26-Oil injection nozzle, 27-Self-lubricating groove, 28-Gradient composite transition layer. Detailed Implementation
[0030] 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.
[0031] Please see Figure 1-6 In this embodiment of the utility model, a steel-rubber composite ball mill lifting bar includes a ball mill frame 1, on which a steel-rubber composite ball mill 2 is installed.
[0032] The steel-rubber composite ball mill 2 includes a cylinder 21. The upper end of the cylinder 21 is provided with a dust collection port 22. The lower end of the dust collection port 22 is connected to the inner cavity of the cylinder 21. The outer surface of the cylinder 21 is connected to the belt 19. The inner side of the cylinder 21 is provided with a plurality of inverted trapezoidal guide grooves 23 in a ring array. The inner side of the plurality of inverted trapezoidal guide grooves 23 is slidably connected to a plurality of slides 24. The upper surface of the plurality of slides 24 is fixedly installed with an inner lifting bar 25. The upper end of the inner lifting bar 25 is provided with a wavy curved surface.
[0033] By adopting the above technical solution, the sliding connection between the inverted trapezoidal guide groove 23 and the slide 24 can provide stronger connection stability and effectively prevent the lifting bar 25 inside the cylinder from loosening or falling off under the high-speed rotation and strong impact of the ball mill. At the same time, this structure is easy to disassemble and install. When the lifting bar 25 inside the cylinder is worn or damaged, the slide 24 and the lifting bar 25 inside the cylinder can be quickly replaced, which greatly shortens the equipment maintenance time and reduces maintenance costs.
[0034] The wave-shaped curved surface design at the upper end of the lifting bar 25 inside the cylinder causes irregular movement of the grinding media and materials during the rising and falling process, increasing the collision and grinding opportunities between materials, effectively improving the crushing rate of materials, and is especially suitable for processing materials with high hardness and large particle size.
[0035] In this embodiment, one end of the inner lifting bar 25 is provided with an oil injection nozzle 26, which is connected to the oil storage cavity inside the inner lifting bar 25. The upper surface of the inner lifting bar 25 is symmetrically provided with multiple sets of self-lubricating grooves 27, and the lower end of the self-lubricating grooves 27 is connected to the oil storage cavity inside the lifting bar 25.
[0036] By adopting the above technical solution, the self-lubricating groove 27 and the oil storage cavity realize the self-lubricating function of the lifting bar 25 inside the cylinder, reduce the friction and wear between the lifting bar and the grinding medium and materials, reduce the frequency of equipment replacement due to lifting bar wear, and further improve the operational stability and reliability of the equipment.
[0037] In this embodiment, a gradient composite transition layer 28 is provided between the inverted trapezoidal guide groove 23, slide 24 and inner cylinder lifting bar 25 and another set of adjacent inverted trapezoidal guide grooves 23, slide 24 and inner cylinder lifting bar 25.
[0038] By adopting the above technical solution, the presence of the gradient composite transition layer 28 effectively alleviates the stress concentration problem caused by the material performance difference between the two adjacent sets of inverted trapezoidal guide grooves 23, slides 24 and inner lifting bars 25, avoids damage to components due to excessive stress, ensures the structural stability of the ball mill during long-term, high-intensity operation, and reduces the probability of equipment failure.
[0039] In this embodiment, the two ends of the cylinder 21 are connected to the symmetrically arranged fixing plates 15 by bolts. The side of the fixing plate 15 connected to the cylinder 21 is provided with an inverted trapezoidal guide rail 16 arranged in a ring array. Side lifting bars 17 are slidably connected to the inverted trapezoidal guide rail 16.
[0040] The symmetrically arranged fixing plates 15 are each fixedly mounted with a rotating shaft 14 on the other side. One of the rotating shafts 14 is a feeding shaft and the other rotating shaft 14 is a discharging shaft. The outer sides of both rotating shafts 14 are rotatably connected to the bearing seat 12.
[0041] The bearing housing 12 is symmetrically mounted on the upper surface of the base frame 11. A motor frame 13 is mounted on one side of the base frame 11. A motor 18 is fixedly mounted on the motor frame 13. The end of the motor 18 is connected to the belt 19.
[0042] By adopting the above technical solution, the side lifting strip 17 on the fixed plate 15 cooperates with the inverted trapezoidal guide rail 16 to play an auxiliary lifting and guiding role for the grinding media and materials, making the movement of materials in the cylinder more uniform, avoiding local over-grinding or insufficient grinding, and further improving the grinding quality and product consistency.
[0043] The working principle of this utility model is as follows: When the ball mill is working, after the motor 18 starts, it transmits power to the cylinder 21 through the connection between the end and the belt 19, so that the cylinder 21 rotates around the rotating shaft 14; one of the rotating shafts 14 serves as the feed shaft, through which the material enters the cylinder 21, and the other rotating shaft 14 serves as the discharge shaft, used to discharge the ground material.
[0044] The inverted trapezoidal guide grooves 23 arranged in a ring array on the inner side of the cylinder are slidably connected to the slides 24, and the cylinder lifting bars 25 fixedly installed on the multiple slides 24 move together with it; the upper end of the cylinder lifting bars 25 is set with a wave-shaped curved surface, which can drive the grinding media and materials to rise continuously during the rotation of the cylinder. When a certain height is reached, the grinding media and materials are thrown down along the wave-shaped curved surface under the action of gravity, which will have an impact and grinding effect on the materials inside the cylinder, thereby crushing the materials.
[0045] The grease nipple 26 is connected to the oil storage chamber inside the inner lifting bar 25 of the cylinder, and lubricating oil can be injected into the oil storage chamber through the grease nipple; the lower ends of the multiple sets of self-lubricating grooves 27 symmetrically arranged on the upper surface of the inner lifting bar 25 are connected to the oil storage chamber. During the operation of the ball mill, the movement and extrusion of the grinding media and materials will cause the lubricating oil in the oil storage chamber to seep out into the self-lubricating grooves 27, forming a lubricating film on the surface of the lifting bar, reducing friction between the media and materials, and playing a self-lubricating role.
[0046] The sliding connection between the inverted trapezoidal guide groove 23 and the slide 24 provides stronger connection stability and effectively prevents the lifting bar 25 inside the cylinder from loosening or falling off under the high-speed rotation and strong impact of the ball mill. At the same time, this structure is easy to disassemble and install. When the lifting bar 25 inside the cylinder is worn or damaged, the slide 24 and the lifting bar 25 inside the cylinder can be quickly replaced, which greatly shortens the equipment maintenance time and reduces maintenance costs.
[0047] The wave-shaped curved surface design at the upper end of the lifting bar 25 inside the cylinder causes irregular movement of the grinding media and materials during the rising and falling process, increasing the collision and grinding opportunities between materials, effectively improving the crushing rate of materials, and is especially suitable for processing materials with high hardness and large particle size.
[0048] The self-lubricating groove 27 and the oil storage chamber enable the self-lubricating function of the lifting bar 25 inside the cylinder, reducing the friction and wear between the lifting bar and the grinding media and materials, reducing the frequency of equipment replacement due to lifting bar wear, and further improving the operational stability and reliability of the equipment.
[0049] The presence of the gradient composite transition layer 28 effectively alleviates the stress concentration problem caused by the material performance difference between the two adjacent sets of inverted trapezoidal guide grooves 23, slides 24 and inner lifting bars 25, avoids damage to components due to excessive stress, ensures the structural stability of the ball mill during long-term, high-intensity operation, and reduces the probability of equipment failure.
[0050] The side lifting strip 17 on the fixed plate 15 cooperates with the inverted trapezoidal guide rail 16 to assist in lifting and guiding the grinding media and materials, making the movement of materials in the cylinder more uniform, avoiding local over-grinding or insufficient grinding, and further improving the grinding quality and product consistency.
[0051] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0052] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A steel-cement composite mill lifting strip, characterized in that: include A ball mill frame (1) is provided, and a steel-rubber composite ball mill (2) is installed on the upper end of the ball mill frame (1). The steel-rubber composite ball mill (2) includes a cylinder (21), the upper end of which is provided with a dust collection port (22), the lower end of the dust collection port (22) is connected to the inner cavity of the cylinder (21), the outer surface of the cylinder (21) is connected to the belt (19), the inner side of the cylinder (21) is provided with multiple inverted trapezoidal guide grooves (23) in a ring array, the inner side of the multiple inverted trapezoidal guide grooves (23) is slidably connected to multiple slides (24), and the upper surface of the multiple slides (24) is fixedly installed with an inner lifting bar (25), the upper end of the inner lifting bar (25) is set with a wavy curved surface.
2. The steel-cement composite ball mill lifting strip according to claim 1, characterized in that: One end of the inner lifting bar (25) is provided with an oil injection nozzle (26), which is connected to the oil storage cavity inside the inner lifting bar (25). The upper surface of the inner lifting bar (25) is symmetrically provided with multiple sets of self-lubricating grooves (27), and the lower end of the self-lubricating grooves (27) is connected to the oil storage cavity inside the lifting bar (25).
3. The steel-cement composite ball mill lifting strip according to claim 2, characterized in that: The inverted trapezoidal guide groove (23), slide (24) and inner cylinder lifting bar (25) are provided with a gradient composite transition layer (28) between them and another set of adjacent inverted trapezoidal guide grooves (23), slide (24) and inner cylinder lifting bar (25).
4. The steel-cement composite mill lifting strip according to claim 1, characterized in that: The two ends of the cylinder (21) are connected to the symmetrically arranged fixing plates (15) by bolts. The side of the fixing plate (15) connected to the cylinder (21) is provided with an inverted trapezoidal guide rail (16) arranged in a ring array. Side lifting bars (17) are slidably connected on the inverted trapezoidal guide rail (16).
5. The steel-rubber composite ball mill lifting bar according to claim 4, characterized in that: The fixed plates (15) arranged symmetrically are each fixedly installed with a rotating shaft (14) on the other side. One of the rotating shafts (14) is a feeding shaft and the other rotating shaft (14) is a discharging shaft. The outer sides of both rotating shafts (14) are rotatably connected to the bearing seat (12).
6. The steel-cement composite ball mill lifting strip according to claim 5, characterized in that: The bearing housing (12) is symmetrically installed on the upper surface of the base frame (11). A motor frame (13) is installed on one side of the base frame (11). A motor (18) is fixedly installed on the motor frame (13). The end of the motor (18) is connected to the belt (19).