Crucible body inner wall cleaning device

Abstract

The utility model discloses a crucible body inner wall cleaning device in the technical field of titanium ingot production, which comprises a motor, an output shaft of the motor is connected with a transmission rod, the lower end of the transmission rod is connected with a steel wire brush head, the device further comprises a movable support and a pit for placing a crucible body, the top of the movable support is connected with the motor through a lifting mechanism, and the top of the movable support is connected with the steel wire brush head. The movable support moves through idler wheels rotationally connected with the bottom of the movable support or / and rotates through a rotating seat rotationally connected with the bottom of the movable support, a mounting hole is formed in the rotating seat, and the lower end of the transmission rod is connected with the steel wire brush head through a telescopic positioning type connecting arm. According to the scheme, the device does not need to be mounted and dismounted in the pot body before and after the pot body is cleaned, the device and the pot body are not detachably connected, the device operates stably, and loosening or slipping accidents caused by vibration in the cleaning process are avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of titanium ingot production, and particularly relates to a cleaning device for the inner wall of the pot body of a crucible. Background Technique

[0002] At present, in the field of melting of titanium and titanium alloys, the control of impurity elements in the melting process is becoming more and more strict. Most of the vacuum consumable electrode melting production processes of titanium ingots use mechanical pressing of sponge titanium into electrodes and then use the method of vacuum melting. During the vacuum consumable arc furnace melting, the consumable electrode first melts under the action of the high temperature of the arc, and then recrystallizes and solidifies in a water-cooled copper crucible. During the process of using the copper crucible as a mold, some impurities often condense and adhere to the inner wall of the crucible. Therefore, before the crucible is used next time, it is necessary to clean the attachments on its inner wall. Otherwise, the impurities in these inner wall attachments will affect the quality of the melting product.

[0003] The pot body and the bottom of the crucible are detachable. After the pot body is disassembled when taking out the titanium ingot, it is relatively easy to take out the titanium ingot. The bottom of the pot is generally flat and completely exposed. Even if it is manually cleaned, it is very easy. However, the height of the pot body is about 3 meters, and it is difficult for manual cleaning. It is difficult to clean it thoroughly, and the labor intensity of the operator is relatively large, time-consuming and laborious. The cleaning efficiency is low, and the cleaning degree is not good, which is easy to cause secondary pollution to the product and affect the product quality.

[0004] In the prior art, mechanical cleaning has gradually been adopted to replace manual cleaning. For example, a new crucible cleaning device with the publication number CN205110290U includes a steel bracket, on which a variable-frequency motor and a speed reducer are fixed. The lower end of the speed reducer is connected to a wire brush disc through a coupling. A plurality of support rods are hinged on the outer peripheral wall of the steel bracket, and the plurality of support rods are evenly arranged. A tension spring is provided between the steel bracket and each support rod, and the end of each support rod is connected to a support seat, on which a cloth clamping rubber band is fixed. The device of the present utility model is overall small and compact. The relative movement between the wire brush disc and the inner wall of the crucible is used for scrubbing. The repeated friction between the wire brush disc and the inner wall of the pot brushes out impurities, and the cleaning effect is good. At the same time, there are also deficiencies and areas for improvement in this solution. (1) When in use, the entire crucible cleaning device is inside the crucible. The fixing method uses the restoring force of the spring to place the support seat at the front end of the support rod on the inner wall of the crucible. However, vibrations will occur during the high-speed operation of the motor and the cleaning process of the brush disc. During the vibration process, the spring will vibrate at a certain frequency, resulting in a change in the restoring force, thereby weakening the abutment between the support seat and the inner wall of the crucible, and the device is likely to slip off the inner wall of the crucible, affecting the cleaning progress, and seriously may cause damage to the equipment. (2) The process of placing the crucible cleaning device into the crucible or taking it out of the crucible requires lifting it with the help of external equipment for auxiliary installation, and the use process is relatively troublesome and the operation is cumbersome. (3) When cleaning crucibles with different inner diameters, wire brush discs with different diameters need to be replaced, so correspondingly different diameters of wire brush discs need to be matched, which consumes a lot of materials and increases the replacement process, and the operation is cumbersome. Summary of the Utility Model

[0005] The present utility model aims to provide a device for cleaning the inner wall of the pot body of a crucible to solve the problems that the prior art crucible cleaning device is cumbersome to operate before and after use and is prone to slipping due to vibration during the use of the device.

[0006] A device for cleaning the inner wall of the pot body of a crucible in this solution includes a motor, the output shaft of the motor is connected to a transmission rod, and the lower end of the transmission rod is connected to a wire brush head. The device further includes a movable bracket and a pit for placing the pot body. The top of the movable bracket is connected to the motor through a lifting mechanism. The movable bracket moves through rollers rotatably connected to its bottom and / or rotates through a rotating seat rotatably connected to its bottom. An installation hole is provided on the rotating seat, and the lower end of the transmission rod is connected to the wire brush head through a telescopic and positioning connecting arm.

[0007] The working principle of this solution is as follows: The pot body of the crucible is placed in a pit. There is usually a support frame in the pit to support and stabilize the pot body. By operating the lifting mechanism, the motor moves up and down. According to the inner diameter of the pot body, the length of the connecting arm is adjusted so that the wire brush head extends into the pot body and is in close contact with the inner wall of the pot body. Then the motor is started to drive the transmission rod to rotate, so that the wire brush head rotates. During the rotation of the wire brush head, the impurities adhered to the pot body are brushed off, thus achieving the purpose of cleaning the crucible. By moving the motor up and down, all the impurities on the longitudinal inner wall of the pot body are brushed off.

[0008] In this solution, if necessary, the movable support can be moved away from above the pit, so as not to interfere with the operation of placing and removing the pot body in the pit.

[0009] The beneficial technical effects of this solution are as follows:

[0010] 1. Before and after cleaning the pot body, it is not necessary to install and disassemble this device inside the pot body. It only needs to move the device to make the wire brush head extend into or take out the pot body. There is no detachable connection relationship between the device and the pot body, and the operation of the device is stable, avoiding the occurrence of loosening or slipping accidents caused by vibration during the cleaning process.

[0011] 2. Using this device can improve the cleaning efficiency of the pot body and reduce the labor intensity of the operator.

[0012] 3. This solution solves the problems of difficult manual cleaning of the pot body of the crucible and not being easy to clean thoroughly.

[0013] 4. The wire brush head is connected through a telescopic and positioning connecting arm to adapt to the cleaning of pot bodies with different inner diameters.

[0014] Further, the movable support includes a cross beam, and support legs are respectively connected to both ends of the cross beam. The lower end of one support leg is rotatably connected to the rotating seat, and the lower end of the other support leg is rotatably connected to the roller; the pit is located within the circular area formed when the roller walks around the rotating seat as the center.

[0015] Further, the lower end of the transmission rod is connected with a chassis, and a plurality of telescopic connecting arms are arranged in a ring on the chassis. The wire brush head is connected to the end of each connecting arm far away from the chassis.

[0016] Further, the connecting arm includes a sliding rod and a sleeve, and a locking member is arranged between the sliding rod and the sleeve. The relative position of the sliding rod and the sleeve can be quickly adjusted to the required length by sliding, and the relative position of the sliding rod and the sleeve is fixed by using the locking member to avoid easily sliding and changing the length.

[0017] Further, the locking member includes a screw rod connected to the sliding rod and a sliding opening formed in the sleeve. The screw rod passes through the sliding opening and is threadedly connected with a nut. Loosening the nut allows the sliding rod to slide, and tightening the nut until both the sliding rod and the nut tightly abut against the sleeve wall at the edge of the sliding opening fixes the relative positions of the sleeve and the sliding rod. Such a process is simple and quick to operate, and the structure is also simple and has strong fixity.

[0018] Further, the locking member includes a threaded hole formed in the sleeve and a bolt threadedly connected in the threaded hole. Such a locking member is arranged at a position where it can also play a role when the connecting arm is the longest. By screwing the bolt away from or abutting against the sliding rod, the sliding rod can be slid or fixed accordingly.

[0019] Further, the wire brush head is connected to one end of the sliding rod. The other end of the sliding rod is located inside the sleeve, and a spring is connected between the end of the sliding rod located inside the sleeve and the inner wall of the sleeve. The spring is coaxial with the sliding rod. On the one hand, when the wire brush head is cleaning the inner wall of the pot body, it will receive a certain degree of reverse force. Continuously bearing such a force throughout the cleaning process will inevitably cause the locking member to become slightly loose. This solution uses the restoring force of the spring to offset or partially offset the reverse force, thereby alleviating or avoiding the slight loosening of the locking member. On the other hand, through the fixing action of the locking member, the sliding rod compresses the spring until the wire brush heads in this device can all easily enter the pot body. Even when it is possible to easily determine that there is a gap between the wire brush heads and the inner wall of the pot body, after aligning the positions so that all the wire brush heads are facing the inner wall of the pot body, loosen the locking member. Under the action of the restoring force of the spring, the sliding rod automatically pops out, and the wire brush heads are instantly positioned to abut against the inner wall of the pot body, and then tighten the locking member. Such an operation can quickly determine the length of the telescopic arm without having to measure and calculate the extended length of the telescopic arm according to pots with different inner diameters, omitting such cumbersome operations, which helps to improve work efficiency.

[0020] Further, the device further includes a mounting bracket. The motor is connected to the mounting bracket, and the lifting mechanism is connected to the mounting bracket. Guide sliders that are slidably connected to the support legs are provided at both ends of the mounting bracket, and guide grooves are provided on the guide sliders. The motor is fixed using the mounting bracket. Compared with the situation where the lifting mechanism is directly connected to the motor, the mounting bracket can lift the motor more smoothly during the synchronous lifting process through the mutual restraint of the guide grooves on the mounting bracket and the guide blocks.

[0021] Further, the lifting mechanism includes a winch or a vertical lifting pulley mechanism.

[0022] Further, the output shaft of the motor is connected to the transmission rod through a gear transmission group. The transmission rod is tubular, and a water delivery pipe is sleeved inside the transmission rod. The upper end of the water delivery pipe is externally connected to a water source. A plurality of water distribution pipes are connected to the outer periphery of the lower end of the transmission rod. The water distribution pipes are located above the connecting arms, and a booster nozzle is provided at one end of the water distribution pipe close to the inner wall of the pot body. During the process of the steel wire brush head brushing away impurities, the booster nozzle sprays water to wash the inner wall of the pot body, washing down the dust or tiny impurities attached to the inner wall of the pot body, so that the pot body can be clean. Description of the Drawings

[0023] Figure 1 It is the front view of Embodiment 1 of the inner wall cleaning device of the pot body of a crucible of the present utility model;

[0024] Figure 2 It is Figure 1 the enlarged view of A in

[0025] Figure 3 It is the front view of Embodiment 4 of the inner wall cleaning device of the pot body of a crucible of the present utility model. Detailed Description of the Embodiments

[0026] The following is a further detailed description through specific embodiments:

[0027] The reference numerals in the accompanying drawings of the specification include: movable support 1, cross beam 101, support leg 102, winch 2, mounting frame 3, slider 4, motor 5, transmission rod 6, switch box 7, rotating seat 8, pit 9, roller frame 10, roller 11, telescopic arm 12, sleeve 121, sliding opening 122, screw 123, nut 124, sliding rod 125, spring 126, steel wire brush head 13, chassis 14, water delivery pipe 15, driving gear 16, driven gear 17, water distribution pipe 18, booster nozzle 19.

[0028] Embodiment 1 is basically as shown in the Figure 1 accompanying drawings: An inner wall cleaning device for a pot body of a crucible includes a movable support 1, a mounting frame 3, a motor 5, a lifting mechanism, and a pit 9 for placing the pot body.

[0029] The movable support 1 includes a cross beam 101. Support legs 102 are respectively connected to both ends of the cross beam 101. The lower end of one of the support legs 102 is rotatably connected to a rotating seat 8, and the lower end of the other support leg 102 is rotatably connected to a roller frame 10. A roller 11 is rotatably connected to the inner side of the roller frame 10; the roller 11 walks around the rotating seat 8 to form a circular area, and the pit 9 is located in the middle of the circular area. A switch box 7 is connected to any one of the support legs 102, and switches for respectively controlling the motor 5 and the lifting mechanism are provided in the switch box 7.

[0030] The motor 5 is installed on the mounting bracket 3. The two ends of the mounting bracket 3 are connected with guiding sliders 4. The side wall of the guiding slider 4 is longitudinally provided with a guiding groove, and the guiding groove semi-surrounds the supporting leg 102, so that the guiding slider 4 can slide on the supporting leg 102. The lifting mechanism is a winch 2, and the lifting rope of the winch 2 is connected to the top of the mounting bracket 3.

[0031] The output shaft of the motor 5 is connected with a transmission rod 6, and the lower end of the transmission rod 6 is connected with a chassis 14. As Figure 2 shown, three to six telescopic connecting arms are arranged around the chassis 14. The telescopic arm 12 includes a sleeve 121 and a sliding rod 125. A spring 126 is coaxially arranged in the sleeve 121. The sliding rod 125 is slidably sleeved in the sleeve 121. One end of the sliding rod 125 located in the sleeve 121 is connected with the spring 126, and one end of the sliding rod 125 located outside the sleeve 121 is connected with a wire brush head 13. The sleeve 121 and the sliding rod 125 are positioned by a locking member. Specifically, the locking member includes a screw rod 123 connected to one end of the sliding rod 125 away from the wire brush head 13. A nut 124 is threadedly connected to the screw rod 123. A sliding opening 122 is opened on the upper surface of the sleeve 121. The two horizontal ends of the sliding opening 122 do not penetrate the sleeve 121 to prevent the sliding rod 125 from slipping out of the sleeve 121. After the screw rod 123 passes through the sliding opening 122, it is threadedly connected with the nut 124.

[0032] The following links are involved in the use process of this solution:

[0033] 1. Push the movable bracket 1, and the roller 11 walks around the rotating seat 8, so that the movable bracket 1 can be moved away from above the pit 9 or moved above the pit 9. When the pot body needs to be placed into the pit 9, it is moved away, and when cleaning, it is moved above the pit.

[0034] 2. Adjust the telescopic arm 12 to make the telescopic arm 12 the shortest, and tighten the nut 124 to fix the relative positions of the sleeve 121 and the sliding rod 125. At this time, all the wire brush heads 13 can enter the pot body. When the wire brush head 13 is located at a position close to the upper end in the pot body, loosen the nut 124. Under the restoring force of the spring 126, the wire brush head 13 is pushed against the inner wall of the pot body, and then tighten the nut 124 to fix it. Of course, according to the inner diameter of the pot body, the length of the telescopic arm 12 can be calculated and determined and fixed, and then the wire brush head 13 can be lowered into the pot body.

[0035] 3. Start the winch 2 to drive the mounting bracket 3 and the motor 5 thereon to lift and lower, thereby driving the transmission rod 6 connected to the motor 5 to lift and lower, and the wire brush head 13 to lift and lower. During the cleaning work, the wire brush head 13 extends into the pot body and moves up and down inside it. After the cleaning is completed, the wire brush head 13 rises to be taken out of the pot body.

[0036] 4. Start the motor 5 to drive the transmission rod 6 to rotate. During the rotation of the wire brush head 13 in the pot body, it frequently rubs against the inner wall of the pot body, brushing off the impurities on the inner wall.

[0037] Embodiment 2 is different from Embodiment 1 in that the locking member is different. In this solution, the locking member includes a threaded hole opened on the sleeve 121 and a bolt threadedly connected in the threaded hole. Such a locking member is provided at one end of the sleeve 121 close to the wire brush head 13. By screwing the bolt to move it away from or abut against the sliding rod 125, the sliding rod 125 can be slid or fixed accordingly.

[0038] Embodiment 3 is different from Embodiment 1 or Embodiment 2 in that the lifting mechanism is different. In this solution, the lifting mechanism adopts a vertical lifting pulley mechanism. Such a pulley mechanism is recorded in physics or science textbooks and belongs to common knowledge, so it will not be elaborated here.

[0039] Embodiment 4 is different from Embodiment 1 or Embodiment 2 in that the motor 5 is not directly connected to the transmission rod 6, and a spraying structure is added. Specifically, as Figure 3 shown: The output shaft of the motor 5 is connected to the transmission rod 6 through a gear transmission group. The gear transmission group includes a meshing driving gear 16 and a driven gear 17. When the motor 5 drives the driving gear 16 to rotate, the driven gear 17 rotates at the same time. The driven gear 17 is coaxial with and fixedly connected to the transmission rod 6. The transmission rod 6 is tubular, and a water delivery pipe 15 is sleeved inside the transmission rod 6. The upper end of the water delivery pipe 15 is externally connected to a water source. Three to six water distribution pipes 18 are communicated with the outer periphery of the lower end of the transmission rod 6. The water distribution pipes 18 are located above the connecting arm. A pressure increasing nozzle 19 is provided at one end of the water distribution pipe 18 close to the inner wall of the pot body. The rotation of the transmission rod 6 will not prevent the water delivery pipe 15 from delivering water into the transmission rod 6. After the water delivery pipe 15 is connected to the water source, a certain amount of water accumulates in the transmission rod 6. The water is diverted from the surrounding water distribution pipes 18 and sprayed out through the pressure increasing nozzle 19 to wash the inner wall of the pot body.

Claims

1. A crucible pot inner wall cleaning device, comprising a motor and a wire brush head, wherein the output shaft of the motor is connected to a transmission rod, and the lower end of the transmission rod is connected to the wire brush head, characterized in that: The device also includes a movable bracket and a pit for placing the pot body. The top of the movable bracket is connected to the motor through a lifting mechanism. The movable bracket moves through a roller rotatably connected to its bottom and / or rotates through a rotating seat rotatably connected to the bottom. A mounting hole is provided on the rotating seat. The lower end of the transmission rod is connected to the wire brush head through a telescopic positioning connecting arm.

2. The device for cleaning the inner wall of a crucible according to claim 1, characterized in that: The movable bracket includes a crossbeam, and support legs are respectively connected to both ends of the crossbeam. The lower end of one of the support legs is rotatably connected to the rotating seat, and the lower end of the other support leg is rotatably connected to the roller; the pit is located in a circular area formed when the roller moves with the rotating seat as the center.

3. The device for cleaning the inner wall of a crucible according to claim 2, characterized in that: The lower end of the transmission rod is connected to a chassis, and a plurality of telescopic positioning connecting arms are arranged on the chassis. The end of each connecting arm away from the chassis is connected to the wire brush head.

4. The device for cleaning the inner wall of a crucible according to claim 3, characterized in that: The connecting arm comprises a sliding rod and a sleeve, and a locking piece is arranged between the sliding rod and the sleeve.

5. The device for cleaning the inner wall of a crucible according to claim 4, characterized in that: The locking member comprises a screw rod connected to the sliding rod and a sliding opening formed on the sleeve, wherein the screw rod passes through the sliding opening and is threadedly connected with a nut.

6. The device for cleaning the inner wall of a crucible according to claim 4, characterized in that: The locking member comprises a threaded hole formed on the sleeve and a bolt threadedly connected in the threaded hole.

7. A crucible inner wall cleaning device according to any one of claims 4 to 6, characterized in that: The wire brush head is connected to one end of the sliding rod, the other end of the sliding rod is located in the sleeve, and a spring is connected between the end of the sliding rod located in the sleeve and the inner wall of the sleeve, and the spring is coaxial with the sliding rod.

8. A crucible inner wall cleaning device according to any one of claims 2 to 6, characterized in that: The device also includes a mounting frame, the motor is connected to the mounting frame, the lifting mechanism is connected to the mounting frame, and guide slide blocks slidably connected to the supporting legs are provided at both ends of the mounting frame, and guide grooves are provided on the guide slide blocks.

9. The device for cleaning the inner wall of a crucible according to claim 7, characterized in that: The lifting mechanism includes a winch or a vertical lifting pulley mechanism.

10. A crucible inner wall cleaning device according to any one of claims 1 to 6 and 9, characterized in that: The output shaft of the motor is connected to the transmission rod through a gear transmission group. The transmission rod is tubular, and a water pipe is sleeved inside the transmission rod. The upper end of the water pipe is connected to an external water source, and the outer periphery of the lower end of the transmission rod is connected to a plurality of water distribution pipes. The water distribution pipes are located above the connecting arm, and a booster nozzle is provided at one end of the water distribution pipe close to the inner wall of the pot body.

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