Self-aligning semi-autogenous mill feed mechanism
The semi-autogenous mill feeding mechanism with automatic centering, using rack, gear, ball bearings and motor drive, solves the problem of centering difficulties in the transfer of the semi-autogenous mill feeding trolley, improves efficiency and saves manpower.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- 伊春鹿鸣矿业有限公司
- Filing Date
- 2024-06-11
- Publication Date
- 2026-06-23
AI Technical Summary
The existing semi-autogenous mill feed trolley requires manual pushing during transfer and is difficult to center, resulting in low efficiency.
An automatic centering semi-autogenous mill feeding mechanism was designed. Through a combination of rack, pinion, ball bearings and motor drive, the feeding trolley and trailer are automatically centered, and the feeding trolley is positioned by the cooperation of rollers and hook plates.
It enables automatic centering of the feeding trolley, reduces the need for manual pushing, improves efficiency, and saves manpower.
Smart Images

Figure CN118528170B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of semi-autogenous mill feeding trolley technology, specifically to an automatically centered semi-autogenous mill feeding mechanism. Background Technology
[0002] The feed materials for autogenous and semi-autogenous mills, including ore, water, and steel balls, are transported to the feed trolley hopper via belts or other equipment, and then enter the mill cylinder through the trolley's chute for grinding.
[0003] It is quite laborious to manually push the feeding trolley to the semi-autogenous mill. Generally, the feeding trolley is first pushed onto the trailer, and then the trailer is moved. However, the transfer of the feeding trolley to the trailer also requires manual transfer, and it cannot be guaranteed that the feeding trolley will stop in the middle of the trailer. As a result, when the trailer is moved, the feeding trolley may be pressed against the front or rear due to the center of gravity not being in the middle, which affects the efficiency of the feeding trolley trailer. Summary of the Invention
[0004] The purpose of this section is to outline some aspects of the embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.
[0005] In view of the problems existing in the above and / or existing automatic centering semi-autogenous mill feeding mechanism, the present invention proposes an automatic centering semi-autogenous mill feeding mechanism.
[0006] To address the aforementioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:
[0007] An automatically centered semi-autogenous mill feeding mechanism, comprising a feeding trolley and a trailer, wherein the feeding trolley includes:
[0008] The feeding trolley assembly includes a base plate, first rollers symmetrically rotatably mounted on both sides of the base plate, a support frame symmetrically fixed on the base plate, a material container fixed on the support frame, and a feeding pipe communicating with the lower part of the material container. A movable baffle is inserted into the feeding pipe.
[0009] The drive component, set on the feeding trolley component, includes a receiving block fixed on the support frame, a first rack symmetrically fixed on one side of the outer wall of the receiving block, an arc-shaped groove symmetrically opened on the outer wall of the receiving block, a ball bearing rotatably installed in the inner cavity of the arc-shaped groove, and a pull plate symmetrically fixed on the other side of the outer wall of the receiving block.
[0010] The automatic centering semi-autogenous mill feed trolley is matched with a trailer, the trailer comprising:
[0011] The trailer assembly includes a base, second rollers symmetrically rotatably disposed on both sides of the base, a trailer connector fixed to the rear side of the base, an inclined ladder fixed to the front side of the base, vertical plates fixed to the rear and both sides of the base, a first rotating shaft rotatably mounted on the top of the vertical plate, a gear fixed on the first rotating shaft and meshing with the first rack, a motor coaxially connected to the first rotating shaft, and a motor frame fixed at one end to the motor and at the other end to the vertical plate.
[0012] A ball drive assembly is mounted on the trailer assembly, which drives the balls to rotate and controls the feeding trolley assembly to move onto the base.
[0013] The present invention provides an automatic centering feeding mechanism for a semi-autogenous mill, wherein mounting grooves are provided on the inner walls of the vertical plates on both sides, and through holes are provided on the motor frame.
[0014] The present invention discloses an automatic centering feeding mechanism for a semi-autogenous grinding mill. The ball drive assembly includes a plurality of second rotating shafts uniformly rotatably mounted on the inner wall of the mounting groove, rollers fixed on the second rotating shafts and adapted to the balls, a first pulley fixed on the upper end of the second rotating shafts, a first transmission belt sleeved on the first pulley, a third rotating shaft fixed on the top end of one of the second rotating shafts, a second pulley fixed on the upper end of the third rotating shaft, a third pulley fixed on the first rotating shaft, and a second transmission belt sleeved on the second pulley and the third pulley, the second transmission belt passing through the through hole.
[0015] The present invention provides an automatic centering semi-autogenous mill feeding mechanism, which further includes a pulling component disposed on the vertical plate and used in conjunction with the pulling plate to pull the feeding trolley component to move.
[0016] The present invention discloses an automatic centering feeding mechanism for a semi-autogenous grinding mill. The pulling assembly includes a pulling groove symmetrically formed on the outer wall of a vertical plate, a moving block disposed in the pulling groove, a first electric push rod fixed on the moving block, a first connecting plate sleeved on the outer wall of the first electric push rod and fixed on the vertical plate, a fourth rotating shaft rotatably mounted on the moving block, a toothed ring fixed on the fourth rotating shaft, a rotating plate fixed on the fourth rotating shaft and disposed outside the toothed ring, a hook plate fixed on the end of the rotating plate, a second rack meshing with the toothed ring, a second electric push rod fixed to the second rack, and a second connecting plate sleeved on the outer wall of the second electric push rod and fixed on the vertical plate.
[0017] The present invention provides an automatic centering feeding mechanism for a semi-autogenous mill, wherein limit grooves are symmetrically provided on the upper and lower sides of the inner wall of the pulling groove, and limit blocks adapted to the limit grooves (510a) are symmetrically fixed on the moving block.
[0018] The present invention provides an automatic centering feeding mechanism for a semi-autogenous mill, wherein the pull plate is provided with a hook groove adapted to the hook plate.
[0019] Compared with the prior art, the beneficial effects of the present invention are:
[0020] 1. It enables automatic alignment of the trailer with the feeding trolley, eliminating the need for manual pushing of the feeding trolley throughout the process. Only manual pushing of the feeding trolley to the vicinity of the trailer is required to engage the first rack and pinion gear. Subsequently, the feeding trolley can be automatically moved onto the trailer, reducing manual labor and saving manpower.
[0021] 2. Once the feeding trolley is moved onto the trailer, it can be fixed in place without additional fixing structures. Specifically, adjacent rollers hold the balls in place, achieving automatic positioning of the feeding trolley and saving manpower. Attached Figure Description
[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:
[0023] Figure 1 This is a schematic diagram of the overall structure of a semi-autogenous mill feeding mechanism with automatic centering according to the present invention;
[0024] Figure 2 This is a schematic diagram of the feeding trolley assembly of an automatic centering semi-autogenous mill feeding mechanism according to the present invention.
[0025] Figure 3 This is a schematic diagram of the trailer assembly of an automatically centered semi-autogenous mill feeding mechanism according to the present invention;
[0026] Figure 4 This invention relates to an automatic centering feeding mechanism for a semi-autogenous mill. Figure 3 A magnified view of part A in the image;
[0027] Figure 5 This is a schematic diagram of the pulling component of the automatic centering semi-autogenous mill feeding mechanism of the present invention. Detailed Implementation
[0028] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0029] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.
[0030] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
[0031] This invention provides an automatically centered feeding mechanism for a semi-autogenous mill. When using this device, the trailer is first pushed near the feeding trolley, causing the first rack and gear to mesh. Then, the motor is turned on, driving the first shaft and gear to rotate, thus moving the feeding trolley until the first roller contacts the inclined ladder. At this point, the ball and roller engage, and the first rack and gear disengage. The roller is positioned between the first and second ball, allowing the roller's rotation to drive the ball and propel the feeding trolley up the inclined ladder. The motor continues to drive the first shaft, which in turn drives the second transmission belt, which in turn drives the third and second shafts, thereby rotating the roller, which in turn drives the ball, pulling the feeding trolley up the inclined ladder. As the trolley moves onto the base, it tilts along the inclined ladder, and the ball bearings adaptively change their angle within the arc-shaped groove. Once the trolley reaches the trailer and is level with the base, the second electric push rod is activated to drive the second rack, which in turn rotates the gear ring, causing the hook plate to rotate and reach the side of the pull plate. Then, the first electric push rod is activated to move the moving block, causing the hook plate to adhere to the pull plate and continuously apply tension to it, thus applying tension to the trolley. Finally, when the trolley reaches the middle position of the trailer, the motor and the first electric push rod stop. At this point, the rollers remain engaged with the ball bearings, positioning the trolley. This achieves automatic centering of the trailer onto the trolley.
[0032] Figures 1-5 The diagram shown is an overall structural schematic of an embodiment of an automatic centering semi-autogenous mill feeding mechanism according to the present invention. Please refer to [link / reference]. Figures 1-5 The automatic centering semi-autogenous mill feeding mechanism of this embodiment includes a feeding trolley assembly 100, a drive assembly 200, a trailer assembly 300, and a ball drive assembly 400.
[0033] The feeding trolley assembly 100 is used to hold materials and place them into the semi-autogenous mill. It includes a base plate 110, a first roller 120 symmetrically rotated on the base plate 110, a support frame 130 symmetrically fixed on the base plate 110, a holding bucket 140 fixed on the support frame 130, and a feeding pipe 150 connected to the holding bucket 140. A movable baffle 150a is inserted into the feeding pipe 150. First, the baffle 150a is used to block the feeding pipe 150. Then, the material is placed into the holding bucket 140. Finally, the feeding trolley is moved so that the feeding pipe 150 is connected to the feed inlet of the semi-autogenous mill. Then, the baffle 150a is pulled open so that the material can enter the semi-autogenous mill through the feeding pipe 150.
[0034] The drive assembly 200 includes a receiving block 210 fixed on a support frame 130, a first rack 220 symmetrically fixed on the outer wall of the receiving block 210, an arc-shaped groove 230 symmetrically opened on the outer wall of the receiving block 210, a ball bearing 240 rotatably installed in the inner cavity of the arc-shaped groove 230, and a pull plate 250 symmetrically fixed on the outer wall of the receiving block 210, wherein the ball bearing 240 can roll freely in the arc-shaped groove 230;
[0035] A first rack 220 is provided on one side of the feeding trolley assembly 100, and a pull plate 250 is provided on the other side. The side on which the first rack 22 is provided is the front side.
[0036] The trailer assembly 300 is used to move the feeding trolley to the semi-autogenous mill. It includes a base 310, a second roller 310a symmetrically rotating on the base 310, a trailer connector 310b fixed to the outer wall of the base 310, an inclined ladder 320 fixed to the base 310, a vertical plate 330 symmetrically fixed to the base 310, a first rotating shaft 340 rotatably mounted on the top of the vertical plate 330, a gear 350 fixed to the first rotating shaft 340 and meshing with a first rack 220, a motor 360 coaxially connected to the first rotating shaft 340, and a motor frame 370 fixed at one end to the motor 360 and at the other end to the vertical plate 330. The inner wall of the vertical plate 330 is provided with a mounting groove 330a, and the motor frame 370 is provided with a through hole 370a.
[0037] The ball drive assembly 400 is mounted on the trailer assembly 300 and can drive the ball 240 to rotate and drive the feeding trolley assembly 100 to move onto the base 310. The ball drive assembly 400 includes a second rotating shaft 410 uniformly rotatably mounted on the inner wall of the mounting groove 330a, a roller 420 fixed on the second rotating shaft 410 and adapted to the ball 240, a first pulley 430 fixed on the second rotating shaft 410, a first transmission belt 440 sleeved on the first pulley 430, a third rotating shaft 450 fixed to the top of the second rotating shaft 410, a second pulley 460 fixed on the third rotating shaft 450, a third pulley 470 fixed on the first rotating shaft 340, and a second transmission belt 480 sleeved on the second pulley 460 and the third pulley 470. The second transmission belt 480 passes through the through hole 370a.
[0038] Furthermore, the device also includes a pulling assembly 500, which is mounted on the vertical plate 330 and used in conjunction with the pulling plate 250 to pull the feeding trolley assembly 100 to move. The pulling assembly 500 includes a pulling groove 510 symmetrically formed on the outer wall of the vertical plate 330, a moving block 520 placed in the pulling groove 510, a first electric push rod 530 fixed on the moving block 520, a first connecting plate 530a fixed to the first electric push rod 530 and fixed to the vertical plate 330, a fourth rotating shaft 540 rotatably mounted on the moving block 520, and a toothed ring 550 fixed on the fourth rotating shaft 540. The system includes a rotating plate 560 fixed on the fourth rotating shaft 540, a hook plate 560a fixed on the end of the rotating plate 560, a second connecting plate 570 fixed on the moving block 520, a second electric push rod 580 fixed on the second connecting plate 570, and a second rack 590 fixed on the second electric push rod 580 and meshing with the gear ring 550; symmetrically arranged limit grooves 510a are provided on the inner wall of the pulling groove 510, and symmetrically fixed limit blocks 520a adapted to the limit grooves 510a are provided on the moving block 520; and a hook groove 250a adapted to the hook plate 560a is provided on the pulling plate 250.
[0039] Combination Figures 1-5The automatic centering feeding mechanism for a semi-autogenous mill according to this embodiment is used as follows: When using this device, firstly, push the trailer to the vicinity of the feeding trolley, and make the first rack 220 and gear 350 mesh. Then, turn on the motor 360 to drive the first rotating shaft 340 and gear 350 to rotate, driving the feeding trolley to move until the first roller 120 contacts the inclined ladder 320. At this time, the ball 240 and roller 420 are engaged, and the first rack 220 and gear 350 have just finished meshing. The motor 360 continues to drive the first rotating shaft 340 to rotate, which drives the second transmission belt 480 to rotate, driving the third rotating shaft 450 and the second rotating shaft 410 to rotate, thereby driving the roller 420 to rotate, driving the ball 240 to rotate, and pulling the feeding trolley to move onto the base 310. During this movement, the feeding trolley will tilt along the inclined ladder 320, and the ball 240 will be in the arc groove 2 The angle will adaptively change within 30 seconds. When the feeding trolley reaches the trailer and is level with the base 320, the second electric push rod 580 is activated to drive the second rack 590 to move, which drives the gear ring 550 to rotate, thereby driving the rotating plate 560 and the hook plate 560a to rotate, and making the hook plate 560a reach the side of the pull plate 250. The second electric push rod 580 stops, and then the first electric push rod 530 starts to drive the moving block 520 to move, so that the hook plate 560a sticks to the pull plate 250 and continuously applies a pulling force to the pull plate 250, thereby applying a pulling force to the feeding trolley. Finally, when the feeding trolley reaches the middle position of the trailer, the motor 360 and the first electric push rod 530 stop. At this time, the roller 420 cannot rotate and is still stuck on the ball 240 to position the feeding trolley, and the feeding trolley cannot move. Thus, the trailer is automatically aligned with the feeding trolley, without the need for manual pushing of the feeding trolley.
[0040] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the invention. In particular, as long as there is no structural conflict, the features in the disclosed embodiments can be combined with each other in any manner. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A feeding mechanism for an automatically centered semi-autogenous mill, characterized in that, The automatically centered semi-autogenous mill feeding mechanism includes a feeding trolley and a trailer, wherein the feeding trolley includes: The feeding trolley assembly (100) includes a base plate (110), first rollers (120) symmetrically rotatably mounted on both sides of the base plate (110), a support frame (130) symmetrically fixed on the base plate (110), a material container (140) fixed on the support frame (130), and a feeding pipe (150) communicating with the lower part of the material container (140). A movable baffle (150a) is inserted into the feeding pipe (150). The drive assembly (200) is set on the feeding trolley assembly (100) and includes a receiving block (210) fixed on the support frame (130), a first rack (220) symmetrically fixed on one side of the outer wall of the receiving block (210), an arc groove (230) symmetrically opened on the outer wall of the receiving block (210), a ball bearing (240) rotatably installed in the inner cavity of the arc groove (230), and a pull plate (250) symmetrically fixed on the other side of the outer wall of the receiving block (210). The automatic centering semi-autogenous mill feed trolley is matched with a trailer, the trailer comprising: The trailer assembly (300) includes a base (310), second rollers (310a) symmetrically rotatably disposed on both sides of the base (310), a trailer connector (310b) fixed to the rear side of the base (310), an inclined ladder (320) fixed to the front side of the base (310), a vertical plate (330) fixed to the rear and both sides of the base (310), a first rotating shaft (340) rotatably mounted on the top of the vertical plate (330), a gear (350) fixed on the first rotating shaft (340) and meshing with the first rack (220), a motor (360) coaxially connected to the first rotating shaft (340), and a motor frame (370) with one end fixed to the motor (360) and the other end fixed to the vertical plate (330). A ball drive assembly (400) is disposed on the trailer assembly (300) to drive the ball (240) to rotate and control the feeding trolley assembly (100) to move onto the base (310).
2. The automatic centering semi-autogenous mill feeding mechanism according to claim 1, characterized in that, The inner walls of the vertical plates (330) on both sides are provided with mounting grooves (330a), and the motor frame (370) is provided with through holes (370a).
3. The automatic centering semi-autogenous mill feeding mechanism according to claim 1 or 2, characterized in that, The ball drive assembly (400) includes a plurality of second shafts (410) uniformly rotatably mounted on the inner wall of the mounting groove (330a), a roller (420) fixed on the second shaft (410) and adapted to the ball (240), a first pulley (430) fixed on the upper end of the second shaft (410), a first transmission belt (440) sleeved on the first pulley (430), a third shaft (450) fixed on the top end of one of the second shafts (410), a second pulley (460) fixed on the upper end of the third shaft (450), a third pulley (470) fixed on the first shaft (340), and a second transmission belt (480) sleeved on the second pulley (460) and the third pulley (470), the second transmission belt (480) passing through the through hole (370a).
4. The automatic centering semi-autogenous mill feeding mechanism according to claim 1, characterized in that, The automatic centering semi-autogenous mill feeding mechanism also includes a pulling component (500), which is disposed on the vertical plate (330) and works in conjunction with the pulling plate (250) to pull the feeding trolley component (100) to move.
5. The automatic centering semi-autogenous mill feeding mechanism according to claim 4, characterized in that, The pulling assembly (500) includes a pulling groove (510) symmetrically formed on the outer wall of the vertical plate (330), a movable block (520) disposed in the pulling groove (510), a first electric push rod (530) fixed on the movable block (520), a first connecting plate (530a) sleeved on the outer wall of the first electric push rod (530) and fixed on the vertical plate (330), a fourth rotating shaft (540) rotatably mounted on the movable block (520), and a fourth rotating shaft (540) fixed on the fourth rotating shaft. The gear ring (550) on the shaft (540), the rotating plate (560) fixed on the fourth rotating shaft (540) and disposed on the outside of the gear ring (550), the hook plate (560a) fixed on the end of the rotating plate (560), the second rack (590) meshing with the gear ring (550), the second electric push rod (580) fixed to the second rack (590), and the second connecting plate (570) sleeved on the outer wall of the second electric push rod (580) and fixed on the vertical plate (330).
6. The automatic centering semi-autogenous mill feeding mechanism according to claim 5, characterized in that, The inner wall of the pull groove (510) is symmetrically provided with limiting grooves (510a) on the upper and lower sides, and the moving block (520) is symmetrically fixed with limiting blocks (520a) that are adapted to the limiting grooves (510a).
7. The automatic centering semi-autogenous mill feeding mechanism according to claim 1 or 5, characterized in that, The pull plate (250) is provided with a hook groove (250a) that is adapted to the hook plate (560a).