Mounting structure for driving part of driving roller of pressurized copper material removal banded extruder

Abstract

The utility model relates to the technical field of precious metal smelting, in particular to a mounting structure for a driving part of a driving roller of a pressurized copper material removal banded extruder. The transmission mechanism comprises a main shaft, a mounted bearing, a chain wheel thrust ring, a chain wheel, a mounting seat, a gear, a labyrinth seal and a driving roller are sequentially mounted on the main shaft in a penetrating manner from left to right, the mounting seat is of an annular structure with a middle protrusion, the middle protrusion penetrates through the chain wheel, and the chain wheel is fixedly mounted on the mounting seat through a pin bolt and a pin nut. And a chain wheel thrust ring is arranged at the end part of the chain wheel, is fixed with the chain wheel through a bolt, and is movably connected with the mounting seat through a clamping groove. According to the installation structure, when overload torque is input into the chain wheel or a hard object is clamped between the driving roller and the driven roller meshed with the driving roller, the pin bolt is cut off, and therefore the spindle head of the spindle is protected against deformation. The utility model provides the structure which is easy to install, convenient to maintain, simple in structure and low in cost, and ensures that the pressurized copper material removal extruder stably runs for a long period.

Description

Technical Field

[0001] This utility model relates to the field of precious metal smelting technology, specifically to an installation structure for the active roller drive component of a pressure copper stripping extruder. Background Technology

[0002] In the copper smelting process, after copper anode mud undergoes copper removal in a pressure vessel, copper ions enter the liquid phase, while the solid phase becomes the pressure-removed copper material. This material then enters a water-washing filter press for filtration. The filtered material contains 25%-35% water. At this point, microwave drying equipment is needed to further dry the material. The microwave drying equipment requires the material to completely cover the conveyor belt and have relatively uniform particle size. An extruder needs to be installed at the feed inlet of the microwave drying equipment to extrude the filter cake of the pressure-removed copper material into uniformly sized blocks for further drying. Currently, the drive roller of the extruder is installed with the drive sprocket directly mounted on the main shaft of the drive roller, as shown in the attached diagram. Figure 1 As shown.

[0003] Currently used extrusion machines frequently experience problems such as bending, deformation, and even breakage of the shaft heads where drive components are installed. The main reasons for these problems are as follows: 1. Uneven material distribution at the extrusion machine's feed inlet, resulting in significant differences in filter cake hardness; 2. Corrosion of the 316L rake roller at the extrusion machine's feed inlet by the pressure-treated copper removal material, causing rake teeth to fall off; 3. Production cannot be continuous, and the material stored in the extrusion machine dries and hardens; 4. The pressure-treated copper removal material has high economic value, and it may splash onto the ground during the filter press's feeding process. When workers collect the splashed pressure-treated copper removal material, hard objects may be mixed in.

[0004] The above-mentioned problems can cause the shaft head of the extruder's drive component to bend, deform, or even break during operation due to obstruction by hard objects. Since the drive roller and the drive component shaft are non-detachable, repairs are time-consuming and labor-intensive, affecting normal production cycles. Furthermore, the high value of recycled metals and their volatile market contribute to significant economic risks. Therefore, there is an urgent need to develop an installation structure for the drive component of the extruder's drive roller that can prevent shaft head deformation and ensure a smooth production process. Utility Model Content

[0005] To address the problems in existing technologies, this utility model proposes an installation structure for the drive component of a pressure copper stripping extruder. Even if a hard object gets stuck between the drive and driven rollers of the extruder, the shaft head of the drive component will not bend, deform, or even break, ensuring the smooth operation of the copper anode mud treatment process and eliminating the economic risks associated with replacing the drive roller of the extruder. The specific technical solution is as follows:

[0006] An installation structure for the drive roller of a pressure copper stripping extrusion machine includes a main shaft. From left to right, the main shaft sequentially houses a bearing with a mounting seat, a sprocket thrust ring, a sprocket, a mounting base, a gear, a labyrinth seal, and a drive roller. The mounting base is a ring-shaped structure with a central protrusion (the central protrusion acts as the shaft of the mounting base, with its hole located at the center of the central protrusion). The mounting base has sprocket mounting holes evenly spaced along its circumference. The sprocket has outer through-hole pin bolt mounting holes and inner through-holes evenly spaced along its circumference. The thrust ring mounting hole is not a through hole. The central protrusion of the mounting base (i.e., the shaft of the mounting base) passes through the sprocket. At the same time, the pin bolt mounting hole and the sprocket mounting hole are connected by a pin bolt and fixed by a pin nut. The central protrusion of the mounting base has a thrust ring groove. The sprocket thrust ring has thrust ring holes evenly distributed around its circumference. The inner edge of the sprocket thrust ring is engaged with the thrust ring groove. Bolts pass through the thrust ring holes and the thrust ring mounting holes to fix the sprocket thrust ring and the sprocket.

[0007] Furthermore, the number of sprocket mounting holes is 4-6.

[0008] Furthermore, the number of pin bolt mounting holes is 4-6, and the number of thrust ring mounting holes is 4-6.

[0009] Furthermore, the number of thrust ring holes is 2-4, and the sprocket thrust ring is composed of two semi-circular rings.

[0010] Furthermore, the hole at the center of the sprocket and the central protrusion of the mounting base are in clearance fit.

[0011] Furthermore, the pin nuts and pin bolts are used in combination, and a total of two sets of symmetrical pin nuts and pin bolts are installed to fix the sprocket and the mounting base.

[0012] Furthermore, the drive roller has a concave-convex surface structure.

[0013] The beneficial effects of this utility model are as follows: By mounting the sprocket on the mounting base and fixing the sprocket and mounting base with pin bolts and pin nuts, and installing a seated bearing at the shaft end of the main shaft, this structure ensures that when the sprocket is subjected to overload torque or when a hard object is jammed between the driving roller and the driven roller meshing with the driving roller, the pin bolt is cut off, thus protecting the shaft end of the main shaft from bending, deformation, or even breakage due to excessive torque. Simultaneously, a sprocket thrust ring is provided at the end of the sprocket. The sprocket thrust ring is fixed to the sprocket by bolts and movably connected to the mounting base via a groove. After the pin bolt is cut off, it further ensures that the relative position of the sprocket and the mounting base does not change, restricting the horizontal movement of the sprocket and ensuring the overall stability of the structure. After the pin bolt is cut off, only the pin bolt and pin nut need to be simply replaced. The seated bearing 8 can support the entire structure, ensuring that the shaft end of the main shaft 9 will not bend or deform under the weight of the entire structure.

[0014] This invention provides an easy-to-install, easy-to-maintain, simple, and low-cost structure that ensures the long-term stable operation of the pressure copper stripping extruder. The introduction of this installation structure significantly eliminates the risk of bending, deformation, or even breakage of the extruder's drive roller head, greatly reducing the physical burden on maintenance workers and effectively cutting equipment maintenance costs. Furthermore, it significantly reduces the risk of downtime due to malfunctions in the copper anode mud treatment system, ensuring continuous and smooth pressure copper stripping operations in the furnace, and effectively reducing delays and resource consumption in the production process. Attached Figure Description

[0015] The embodiments of this utility model will be further described below with reference to the accompanying drawings, wherein:

[0016] Figure 1 A diagram showing the installation structure of the drive components of a prior art extruder is provided.

[0017] Figure 2 A schematic diagram of the structure of this utility model is shown (diagonal stripes indicate cross-sections);

[0018] Figure 3 The front view and side sectional view of the mounting base of this utility model are shown;

[0019] Figure 4 A cross-sectional view of the sprocket in this invention is shown;

[0020] Figure 5 The front view and side sectional view of the sprocket thrust ring of this utility model are shown.

[0021] The components include: 1. Mounting base; 101. Sprocket mounting hole; 102. Thrust ring groove; 2. Pin bolt; 3. Gear; 4. Labyrinth seal; 5. Drive roller; 6. Sprocket thrust ring; 601. Thrust ring hole; 7. Bolt; 8. Bearing with seat; 9. Main shaft; 10. Pin nut; 11. Sprocket; 1101. Thrust ring mounting hole; 1102. Pin bolt mounting hole. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0023] In one embodiment, the mounting structure of the active roller drive component of the pressure copper stripping extruder includes a main shaft 9. From left to right, the main shaft 9 sequentially mounts a seated bearing 8, a sprocket thrust ring 6, a sprocket 11, a mounting base 1, a gear 3, a labyrinth seal 4, and an active roller 5 with a concave-convex surface structure. The mounting base 1 is a ring-shaped structure with a central protrusion, the central protrusion acting as the shaft of the mounting base. Its hole is located at the center of the central protrusion, through which the main shaft 9 passes. The mounting base 1 has six sprocket mounting holes 101 evenly spaced along its circumference. The sprocket 11 has six through-hole pin bolt mounting holes 1102 located on the outer ring and six non-through-hole thrust ring mounting holes 1101 located on the inner ring, with the inner and outer rings representing the relative positions of the pin bolt mounting holes 1102 and the thrust ring mounting holes 1101. The central protrusion of the mounting base 1 passes through the sprocket 11. The hole in the center of the sprocket 11 and the central protrusion of the mounting base 1 (i.e., the shaft of the mounting base) are in clearance fit, which allows the pin bolt 2 to be cut off in case of abnormal conditions (such as overload torque on the sprocket or hard objects stuck between the rollers), so that the sprocket can rotate independently without driving the mounting base. At the same time, the pin bolt mounting hole 1102 and the sprocket mounting hole 101 are connected by the pin bolt 2 and fixed by the pin nut 10. The pin nut 10 and the pin bolt 2 are used in pairs, and a total of two sets of symmetrical pin nuts 10 and pin bolt 2 are installed to fix the sprocket 11 and the mounting base 1. The more fixing positions, the more secure the fixation, and the more difficult it is to cut off the pin bolt 2 in case of abnormal conditions. Therefore, an appropriate number of pin bolts should be selected for connection. The mounting base 1 has a thrust ring groove 102 on the middle protrusion. The sprocket thrust ring 6 has four thrust ring holes 601 evenly distributed around its upper circumference. The sprocket thrust ring 6 is composed of two semi-circular rings. The inner edges of the two semi-circular rings of the sprocket thrust ring 6 can be easily engaged with the thrust ring groove 102. The bolt 7 passes through the thrust ring hole 601 and the thrust ring mounting hole 1101 to fix the sprocket thrust ring 6 and the sprocket 11.

[0024] This invention mounts a sprocket 11 (one in a sprocket set, the other connected to a motor) on a mounting base 1, and uses two sets of pin bolts 2 and pin nuts 10 to fix the sprocket 11 and the mounting base 1. A seated bearing 8 is installed at the head of the main shaft 9. This structure ensures that when the sprocket 11 is subjected to overload torque or when a hard object is stuck between the driving roller 5 and the driven roller meshing with the driving roller 5, the pin bolt 2 will break due to the inability to withstand the overload shear force. After the pin bolt 2 breaks, the sprocket 11 will spin freely, thus protecting the head of the main shaft 9 from bending, deformation, or even breakage due to excessive torque. The seated bearing 8 supports the entire structure, ensuring that the head of the main shaft 9 will not bend or deform under the weight of the entire structure.

[0025] This invention provides a structure that is easy to install, easy to maintain, simple in structure, and low in cost, which can ensure the long-term stable operation of the pressure copper stripping extruder and reduce economic risks.

[0026] The foregoing description describes some exemplary embodiments of this utility model. It is understood that the above embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model. The features in these embodiments can be recombine in a suitable manner, and the resulting solutions are still within the scope of protection claimed by this utility model. Based on the above embodiments, all other embodiments obtained by those skilled in the art without inventive effort, that is, all modifications, equivalent substitutions, and improvements made within the spirit and principles of this application, fall within the scope of protection claimed by this utility model.

Claims

1. A mounting structure for the drive roller component of a pressure copper stripping extruder, characterized in that, It includes a main shaft (9), the main shaft (9) is installed in order from left to right through the bearing (8) with seat, chain wheel thrust ring (6), chain wheel (11), mounting seat (1), gear (3), labyrinth seal (4), driving roller (5), the mounting seat (1) is the annular structure of intermediate protrusion, the mounting seat (1) is uniformly provided with chain wheel mounting hole (101) along the circumferential direction, the chain wheel (11) is uniformly provided with outer circle through pin bolt mounting hole (1102) and inner circle not through thrust ring mounting hole (1101) along the circumferential direction, the intermediate protrusion of the mounting seat (1) passes through the chain wheel (11), and the pin bolt mounting hole (1102) and chain wheel mounting hole (101) are connected by pin bolt (2) and fixed by pin nut (10), the intermediate protrusion of the mounting seat (1) is provided with thrust ring clamping groove (102), the chain wheel thrust ring (6) is uniformly provided with thrust ring hole (601) along the circumference, and the inner circle edge of the chain wheel thrust ring (6) is clamped on the thrust ring clamping groove (102), and the bolt (7) passes through the thrust ring hole (601) and the thrust ring mounting hole (1101) and is fixedly connected with the chain wheel thrust ring (6) and the chain wheel (11).

2. A pressurized copper removal material extruder drive component mounting structure according to claim 1, characterized by The number of chain wheel mounting holes (101) is 4-6.

3. A pressurized copper removal material extruder drive roller component mounting structure according to claim 1, characterized by, The number of pin bolt mounting holes (1102) is 4-6, and the number of thrust ring mounting holes (1101) is 4-6.

4. A pressurized copper removal material extruder drive roller component mounting structure according to claim 1, characterized by, The number of thrust ring holes (601) is 2-4, and the chain wheel thrust ring (6) is composed of two semicircular rings.

5. A pressurized copper removal material extruder drive component mounting structure according to claim 1, characterized by, The hole in the center of the chain wheel (11) and the intermediate protrusion of the mounting seat (1) are gap fit.

6. A pressurized copper removal material extruder drive component mounting structure according to claim 1, characterized by The pin nut (10) and the pin bolt (2) are used together, and two sets of symmetrical pin nuts (10) and pin bolts (2) are installed to fix the chain wheel (11) and the mounting seat (1).

7. A pressurized copper removal material extruder drive roller component mounting structure according to claim 1, characterized by, The driving roller (5) is a concave-convex surface structure.

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