Rod drawing device of rod mill

Abstract

The utility model relates to the technical field of ore grinding equipment, and provides a rod drawing device of a rod mill, which comprises a rotating mechanism used for driving the rod mill to rotate slowly and a clamping mechanism used for drawing out a steel rod in the rod mill, and the clamping mechanism comprises a base, a motor, a bevel gear I, a support, a shaft II, a bevel gear II, a sliding block and a clamp, the motor is fixedly connected to the base, an output shaft of the motor is fixedly connected with the first bevel gear, the supports are fixedly connected to the portions, on the upper side and the lower side of the left side of the first bevel gear, of the base, the upper end and the lower end of the second shaft are rotationally connected with the upper base and the lower base respectively, and the second bevel gear is fixedly connected to the middle of the second shaft and meshed with the first bevel gear. The upper portion and the lower portion of the second shaft are provided with threads opposite in spiral direction and are in threaded connection with a sliding block, and the right portion of the clamping pliers is rotationally connected with the sliding block. According to the device, mechanization and semi-automation of rod drawing operation are achieved, the working efficiency of the rod drawing operation is greatly improved, therefore, the downtime is shortened, and the productivity is improved.

Description

Technical Field

[0001] This utility model relates to the field of grinding equipment technology, specifically to a rod mill rod pulling device. Background Technology

[0002] A rod mill is a type of mill in which the grinding media, steel rods, are loaded inside the mill. It is widely used in grinding non-ferrous metals, ferrous metals, and non-metallic ores, and is an indispensable piece of equipment in the mineral processing field. A rod mill mainly consists of a motor, reducer, transmission unit, mill body, feed section, and discharge section. The motor is connected to a small gear via the reducer, directly driving the large gear around the mill body to rotate. Inside the mill body are appropriate grinding media—steel rods. The steel rods rise with the rotation of the mill body and then fall freely due to gravity, impacting and grinding the material, thus achieving material crushing. The product is then discharged from the mill by overflow and continuous feeding for further processing.

[0003] To ensure that the particle size of the discharged material meets the process requirements, it is necessary to select steel bars of appropriate size and quantity. If there are too many coarse bars, the particle size of the discharged material will be too large, and finer bars need to be added appropriately. Conversely, if there are too many fine bars, the particle size of the discharged material will be too small, and coarser bars need to be added appropriately. In actual production, if the discharge initially meets the requirements but then becomes uneven, it is highly likely that the steel bar ratio is uneven. The machine should be stopped, the steel bars sorted, and steel bars of unsuitable diameter removed. Then, steel bars of the appropriate diameter should be added before restarting the machine.

[0004] However, currently, there is a lack of dedicated rod-pulling tools in production, and the rods are mainly pulled out manually by workers. This method has several drawbacks. First, manual operation increases the labor intensity of workers, prolongs downtime, reduces production efficiency, and even poses safety hazards. Second, when the machine stops, the rod mill cylinder will randomly stop at a certain position, and the steel rods inside the cylinder will also be randomly stacked. Workers can only pull out the top steel rods. If the steel rods that need to be pulled out are squeezed in the middle or lower layers, they are difficult to pull out. In this case, it is necessary to restart the machine multiple times to rotate the cylinder, and then try to pull out the steel rods of the unsuitable diameter from the top layer after the cylinder has rotated. In short, manual rod pulling is labor-intensive and inefficient. Therefore, it is essential to design a rod-pulling device for rod mills. Utility Model Content

[0005] To address the shortcomings of existing technologies, the present invention aims to provide a rod mill rod extraction device, comprising a rotating mechanism for driving the rod mill to rotate slowly and a clamping mechanism for extracting steel rods from the rod mill. The clamping mechanism consists of a base, a motor, a first bevel gear, a support, a second shaft, a second bevel gear, a slider, and a clamping clamp. The motor is fixedly connected to the base, and its output shaft is fixedly connected to the first bevel gear. Supports are fixedly connected to the base on the upper and lower left sides of the first bevel gear. The upper and lower ends of the second shaft are rotatably connected to the upper and lower bases, respectively. The middle part of the second shaft is fixedly connected to the second bevel gear, which meshes with the first bevel gear. The upper and lower parts of the second shaft are provided with threads in opposite directions and are threadedly connected to the slider. The right side of the clamping clamp is rotatably connected to the slider.

[0006] Furthermore, the rotating mechanism includes a lifting jack, a shaft, a gear, and a hydraulic wrench. The lifting jack is located on the front working platform of the rod mill. The shaft is rotatably connected to the upper part of the lifting jack. The gear is fixedly connected to the shaft. The hydraulic wrench is located on the left side of the shaft and meshes with the shaft.

[0007] Furthermore, it also includes a hook, which is fixedly connected to the clamping mechanism.

[0008] Furthermore, the left side of the clamping pliers is arc-shaped.

[0009] Furthermore, the clamping part of the clamping pliers is barbed.

[0010] Furthermore, the right side of the clamping clamp is Y-shaped.

[0011] In addition, this utility model also provides a clamping mechanism, which consists of a shell, an elastic expandable sleeve and an oil pipe. The elastic expandable sleeve is sealed and fixed to the inner wall of the shell. The right end of the shell has four pointed cones. The diameter of the circular hole formed by the four pointed cones is larger than that of the steel rod. The oil pipe connects the elastic expandable sleeve and the hydraulic station.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. Improved work efficiency: By incorporating a rotating mechanism, the rod mill cylinder can be slowly rotated and stopped at will, effectively turning over the steel rods inside the cylinder. This allows the steel rods that are squeezed in the middle or lower layers to be pulled out to the upper layer, facilitating the rod extraction operation for the operator. This improvement significantly increases the efficiency of the rod extraction operation.

[0014] 2. Reduced labor intensity: The clamping mechanism allows operators to use a motor to pull the bar, eliminating the need to rely on hand gripping or arm strength to pull it. This effectively reduces the physical burden on operators and lowers their workload.

[0015] 3. Improved safety: Manually pulling the steel bar poses certain safety hazards, such as the steel bar slipping and causing injury. The steel bar pulling device of this invention, through mechanized and semi-automated operation, reduces direct contact between personnel and the steel bar, lowers safety risks during operation, and provides a safer and more reliable guarantee for production operations.

[0016] 4. Improved production efficiency: Due to the increased efficiency of rod extraction, downtime is significantly reduced, which means that the rod mill can resume production more quickly, reducing production losses caused by equipment downtime. This improves overall production efficiency and capacity, bringing greater economic benefits to the enterprise. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one embodiment of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the rotating mechanism of the rod mill rod pulling device. Figure 1 .

[0019] Figure 2 This is a schematic diagram of the rotating mechanism of the rod mill rod pulling device. Figure 2 .

[0020] Figure 3 This is a schematic diagram of the clamping mechanism of the rod mill rod pulling device.

[0021] Figure 4 This is a schematic diagram of the clamping mechanism of the rod mill rod pulling device. Figure 1 .

[0022] Figure 5 This is a schematic diagram of the clamping mechanism of the rod mill rod pulling device. Figure 2 .

[0023] Figure 6 This is a schematic diagram of another clamping mechanism in the rod mill rod pulling device.

[0024] Figure 7 yes Figure 6 View from direction A.

[0025] The markings in the attached diagram are as follows: 101, lifting jack; 102, shaft one; 103, gear; 104, hydraulic wrench; 201, base; 202, motor; 203, bevel gear one; 204, support; 205, shaft two; 206, bevel gear two; 207, slider; 208, clamping pliers; 209, hook; 210, outer casing; 211, elastic expandable sleeve; 212, oil pipe; 301, large gear; 302, drive wheel; 303, steel bar. Detailed Implementation

[0026] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the technical solutions in the specific embodiments of this utility model are clearly and completely described below to further illustrate this utility model. Obviously, the specific embodiments described are only a part of the embodiments of this utility model, and not all of them.

[0027] like Figures 1-2 As shown, the rod mill includes a large gear 301 and a drive wheel 302, and contains steel rods 303. The drive wheel 302 is driven by a drive motor. The rotation of the drive wheel 302 drives the large gear 301 to rotate, thereby causing the steel rods 303 inside the rod mill to rise and fall to grind the minerals.

[0028] The rod mill rod extraction device includes a rotating mechanism for driving the rod mill to rotate slowly and a clamping mechanism for extracting the steel rods 303 from inside the rod mill. For example... Figures 3-5 As shown, the clamping mechanism includes a base 201, a motor 202, a first bevel gear 203, a support 204, a second shaft 205, a second bevel gear 206, a slider 207, and a clamping clamp 208. The motor 202 is fixedly connected to the base 201, and its output shaft is fixedly connected to the first bevel gear 203. The support 204 is fixedly connected to the base 201 on the upper and lower left sides of the first bevel gear 203. The upper and lower ends of the second shaft 205 are rotatably connected to the upper and lower bases 201 respectively. The middle part of the second shaft 205 is fixedly connected to the second bevel gear 206, which meshes with the first bevel gear 203. The upper and lower parts of the second shaft 205 are provided with threads in opposite directions and are threadedly connected to the slider 207. The right part of the clamping clamp 208 is "Y" shaped and is rotatably connected to the upper and lower ends of the slider 207.

[0029] Motor 202 drives bevel gear 203 to rotate forward, which in turn drives bevel gear 206 and shaft 205 to rotate forward. Shaft 205 then drives slider 207 to move away from the shaft, thus engaging the clamping jaws 208. Similarly, motor 202 drives bevel gear 203 to rotate in reverse, which in turn drives bevel gear 206 and shaft 205 to rotate in reverse. Shaft 205 then drives slider 207 to move towards each other, thus releasing the clamping jaws 208. Ultimately, the clamping jaws 208 clamp or release the steel rod 303.

[0030] To better fit the shape of the steel bar 303, the left side of the clamping pliers 208 is arc-shaped to increase the contact area when the clamping pliers 208 clamps the steel bar 303. At the same time, the clamping part is barbed to increase the friction during clamping.

[0031] The clamping mechanism also includes a hook 209, which is fixedly connected to the right side of the base 201. The hook 209 is used to fix the wire rope. The other end of the wire rope hinge is connected to an electric hinge wheel. The operator can use the electric hinge wheel to replace manual pulling of the rod, which can greatly reduce labor intensity.

[0032] like Figures 1-2 As shown, the rotating mechanism includes a lifting jack 101, a shaft 102, a gear 103, and a hydraulic wrench 104. The lifting jack 101 is located on the front working platform of the rod mill. The shaft 102 is rotatably connected to the upper part of the lifting jack 101. The gear 103 is fixedly connected to the shaft 102. The hydraulic wrench 104 is located on the left side of the shaft 102 and meshes with the shaft 102.

[0033] During rod mill grinding operations, the lifting jack 101 is in the retracted state, and gear 103 is disengaged from the large gear 301. When it is necessary to stop the machine to remove the rods, if the steel rods 303 to be removed are squeezed in the middle or lower layer, the lifting jack 101 is raised to engage gear 103 with the large gear 301. Then, the hydraulic wrench 104 drives shaft 102 to rotate, which in turn drives gear 103 to rotate, thereby causing the rod mill cylinder to rotate slowly, causing the steel rods 303 inside to tumble. The operator observes at the same time, and when the steel rods 303 to be removed have tumbled to the upper layer, the hydraulic wrench 104 is closed, and the rod removal operation is carried out again. In this way, the problem of the steel rods 303 being squeezed in the middle or lower layer and difficult to remove is solved.

[0034] like Figures 6-7Another clamping mechanism is shown, including a housing 210, an elastic expandable sleeve 211, and an oil pipe 212. The elastic expandable sleeve 211 is sealed and fixed to the inner wall of the housing 210. The right end of the housing 210 has four pointed cones, and the diameter of the circular hole formed by the four pointed cones is slightly larger than that of the steel rod 303, which facilitates the insertion of the clamping mechanism into the head of the steel rod 303. The oil pipe 212 connects the elastic expandable sleeve 211 to the hydraulic station. When it is necessary to withdraw the rod, the hydraulic station supplies hydraulic oil to the elastic expandable sleeve 211, which expands to clamp the steel rod 303, thereby pulling out the steel rod 303.

[0035] The main technical features, basic principles, and related advantages of this utility model have been described above. It will be apparent to those skilled in the art that this utility model 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 concept or basic characteristics of this utility model. Therefore, the above-described embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model.

[0036] Furthermore, it should be understood that although this specification describes various embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard 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 rod-pulling device for a rod mill, characterized in that, It includes a rotating mechanism for driving the rod mill to rotate slowly and a clamping mechanism for pulling out the steel rod (303) inside the rod mill. The clamping mechanism consists of a base (201), a motor (202), a first bevel gear (203), a support (204), a second shaft (205), a second bevel gear (206), a slider (207), and a clamping clamp (208). The motor (202) is fixedly connected to the base (201), and its output shaft is fixedly connected to the first bevel gear (203). The first bevel gear (205) is fixedly connected to the first bevel gear (206). 3) Supports (204) are fixedly connected to the bases (201) on the upper and lower sides of the left side. The upper and lower ends of the shaft (205) are rotatably connected to the upper and lower bases (201) respectively. The middle part of the shaft (205) is fixedly connected to the bevel gear (206). The bevel gear (206) meshes with the bevel gear (203). The upper and lower parts of the shaft (205) are provided with threads with opposite spiral directions and are threadedly connected to the slider (207). The right part of the clamp (208) is rotatably connected to the slider (207).

2. The rod-pulling device for a rod mill according to claim 1, characterized in that, The rotating mechanism includes a lifting jack (101), a shaft (102), a gear (103), and a hydraulic wrench (104). The lifting jack (101) is located on the front working platform of the rod mill. The shaft (102) is rotatably connected to the upper part of the lifting jack (101). The gear (103) is fixedly connected to the shaft (102). The hydraulic wrench (104) is located on the left side of the shaft (102) and meshes with the shaft (102).

3. The rod-pulling device for a rod mill according to claim 1, characterized in that, It also includes a hook (209), which is fixedly connected to the clamping mechanism.

4. A rod-pulling device for a rod mill according to claim 1, characterized in that, The left side of the clamping pliers (208) is arc-shaped.

5. A rod mill rod-pulling device according to claim 1, characterized in that, The clamping part of the clamping pliers (208) is barbed.

6. A rod-pulling device for a rod mill according to claim 1, characterized in that, The right side of the clamping pliers (208) is "Y" shaped.

7. A rod-pulling device for a rod mill according to claim 1, characterized in that, The clamping mechanism consists of a housing (210), an elastic expandable sleeve (211), and an oil pipe (212). The elastic expandable sleeve (211) is sealed and fixed to the inner wall of the housing (210). The right end of the housing (210) has four pointed cones. The diameter of the circular hole formed by the four pointed cones is larger than that of the steel rod (303). The oil pipe (212) connects the elastic expandable sleeve (211) to the hydraulic station.

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