Feeding travelling crane for closed automatic pickling line

Abstract

The invention relates to the technical field of pickling lines, in particular to a feeding travelling crane for a closed automatic pickling line, which comprises a track, a travelling mechanism and a cross beam, each lifting mechanism comprises two hydraulic cylinders and an X-shaped lifting frame, the two hydraulic cylinders are horizontally installed on the cross beam, the fixed ends of the two hydraulic cylinders are oppositely arranged, the outer ends of piston rods of the two hydraulic cylinders are in transmission connection with the upper end of the X-shaped lifting frame, the lower end of the X-shaped lifting frame is connected with the lower frame, and the upper end of the X-shaped lifting frame is connected with the lower frame. Piston rods of the two hydraulic cylinders extend outwards to push the upper end of the X-shaped lifting frame to be opened, so that the X-shaped lifting frame is vertically contracted, the piston rods of the two hydraulic cylinders contract inwards to pull the upper end of the X-shaped lifting frame to be close, so that the X-shaped lifting frame extends, and the walking mechanism, the cross beam, the hydraulic cylinders, the X-shaped lifting frame, the lower frame and the hanging rod are all subjected to anti-corrosion wrapping; all structural components and movable components are rigid components and can be wrapped in an anti-corrosion mode, and the safety and stability of equipment are improved.

Description

Technical Field

[0001] The invention relates to the technical field of pickling lines, in particular to a feeding crane used for a closed automatic pickling line. Background Art

[0002] The loading crane of the traditional pickling line usually uses a wire rope, chain + motor to lift the hook. The wire rope corrodes very quickly in a heavy acid mist environment and generally needs to be replaced every 3-6 months. Otherwise, the strength of the wire rope will decrease, creating a safety risk. In order to improve the safety of the loading crane, a variety of loading cranes have been proposed in the prior art. For example, a fully automatic environmentally friendly pickling equipment is proposed in the Chinese invention patent application with publication number CN117779051A. The pickling equipment uses the first steering fixed pulley and the second steering fixed pulley (the second steering fixed pulley group) in the lifting pulley group to change the direction of the lifting cable to form a U-shaped structure. A water tank is set at the U-shaped structure, and the first steering fixed pulley and part of the lifting cable are placed in the sealing liquid in the water tank to form a water bath. The inner protective plate is extended downward into the water tank to form a seal against corrosive gases; generally, the sealing liquid uses a liquid with low solubility in corrosive gases and is not easy to react with the lifting cable and the protective plate; this method can effectively prevent the corrosive gas from overflowing during the production process, and at the same time protect the crane from direct contact with the corrosive gas, thereby avoiding corrosion of the crane.

[0003] The above-mentioned prior art loading crane relies on a water tank to isolate the acid gas from the crane body, but the protection of the cable is limited, and the portion of the cable extending out of the protective plate and the water tank is still exposed to the acid gas. Since the cable and the wire rope are both flexible materials, even if an anti-corrosion layer is provided on the surface of the cable, the bending generated when winding will cause cracks in the anti-corrosion layer, resulting in poor anti-corrosion effect on the cable. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a loading crane for a closed automatic pickling line, in which all structural components and movable components are rigid components and can be wrapped for corrosion protection to improve the safety and stability of the equipment.

[0005] A feeding crane for a closed automatic pickling line of the present invention comprises two tracks, two walking mechanisms and a crossbeam, wherein the two walking mechanisms are arranged at the top of the closed pickling line, the two walking mechanisms move on the two tracks respectively through track wheels, and the two ends of the crossbeam are respectively connected to the two walking mechanisms; it also comprises a plurality of lifting mechanisms, a lower frame and a plurality of suspension rods, the upper ends of the plurality of lifting mechanisms are connected to the crossbeam, the lower ends of the plurality of lifting mechanisms are connected to the lower frame, the upper ends of the plurality of suspension rods are connected to the lower frame, the lifting mechanism comprises two hydraulic cylinders and an X lifting frame, the two hydraulic cylinders are horizontally installed on the crossbeam, the fixing of the two hydraulic cylinders The fixed ends are arranged relatively, the outer ends of the piston rods of the two hydraulic cylinders are respectively connected to the upper end of the X-lifting frame, and the lower end of the X-lifting frame is connected to the lower frame. The piston rods of the two hydraulic cylinders extend outward to push the upper end of the X-lifting frame to open, so that the X-lifting frame shrinks vertically. The piston rods of the two hydraulic cylinders shrink inward to pull the upper end of the X-lifting frame closer to extend the X-lifting frame. The walking mechanism, crossbeam, hydraulic cylinder, X-lifting frame, lower frame and boom are all wrapped with anti-corrosion; a hydraulic oil tank and a hydraulic control system are installed on the crossbeam to control the movement of the piston rods of multiple hydraulic cylinders. The electronic control system of the walking mechanism is installed on the crossbeam, and a sealed design is adopted. , which is used to control the automatic operation and positioning of the walking mechanism. When working, the workpiece is hoisted on multiple hanging rods, and the piston rods of multiple hydraulic cylinders extend outward synchronously, so that multiple X lifting frames are contracted to raise the lower frame, so that multiple hanging rods raise the workpiece to the top of the pickling tank. The two walking mechanisms move along the two tracks, driving the crossbeams to pass through multiple pickling tanks in sequence. When the workpiece reaches the top of the pickling tank, the piston rods of multiple hydraulic cylinders contract inward synchronously, so that multiple X lifting frames are extended to lower the lower frame, so that multiple hanging rods put the workpiece into the pickling tank. After the pickling is completed, the workpiece is lifted out of the pickling tank and moves backward until all the pickling work is completed. Since the hydraulic cylinder and X-lifting frame replace the traditional wire rope, chain and motor, all structural components and moving parts are rigid components without flexible structure. Therefore, the walking mechanism, crossbeam, hydraulic cylinder, X-lifting frame, lower frame and suspension rod can be wrapped with anti-corrosion, and the anti-corrosion wrapping material will not crack during movement, thereby improving the safety and stability of the equipment. In addition, the hydraulic cylinder is installed horizontally and cooperates with the X-lifting frame to effectively reduce the height of the entire system. The crane can be arranged in the pickling room to reduce the height of the automatic pickling room, which is beneficial to improve the sealing of the entire pickling room and reduce the requirements for the structural strength of the pickling room.

[0006] Preferably, the X-lifting frame comprises a plurality of connecting rods one, a plurality of connecting rods two, a plurality of articulated shafts one, a plurality of articulated shafts two and a plurality of articulated shafts three, a plurality of connecting rods one are arranged in parallel up and down, a plurality of connecting rods two are arranged in parallel up and down, corresponding connecting rods one and connecting rods two at the same height are arranged crosswise, and the intersection of connecting rods one and connecting rods two is hinged by articulated shaft three, the upper and lower adjacent connecting rods one and connecting rods two are aligned end to end, the lower end of the connecting rod one located at the top and the upper end of the connecting rod two located below it are hinged by articulated shaft two, the lower end of the connecting rod two located at the top and the upper end of the connecting rod one located below it are hinged by articulated shaft one, the upper end of the connecting rod one located at the top is transmission connected to the piston rod of a hydraulic cylinder, the upper end of the connecting rod two located at the top is transmission connected to the piston rod of another hydraulic cylinder, and the lower end of the connecting rod one located at the bottom is transmission connected to the lower frame Transmission connection, the lower end of the connecting rod two located at the bottom is transmission connected with the lower frame, multiple connecting rods one, multiple connecting rods two, multiple articulated shafts one, multiple articulated shafts two and multiple articulated shafts three are all wrapped with anti-corrosion; multiple connecting rods one, multiple connecting rods two, multiple articulated shafts one, multiple articulated shafts two and multiple articulated shafts three constitute an X-shaped lifting frame, the piston rods of the two hydraulic cylinders extend outward synchronously, and push the multiple connecting rods one and the multiple connecting rods two to rotate horizontally around the multiple articulated shafts in three directions, so that the multiple connecting rods one and the multiple connecting rods two are retracted upward to raise the lower frame. Similarly, when the piston rods of the two hydraulic cylinders are retracted inward synchronously, the lower frame is lowered. The technology is mature and reliable. When the walking mechanism runs at high speed, the left and right shaking and the front and back shaking of the workpiece are reduced, the stability of the entire lifting system is increased, and the height required for the entire lifting part is reduced at the same time.

[0007] Preferably, it also includes multiple stabilizer bars 1 and multiple stabilizer bars 2, the left ends of the multiple stabilizer bars 1 are respectively rotatably connected to the multiple articulated shafts 1 of the X-lifting frame on the left, the right ends of the multiple stabilizer bars 1 are respectively rotatably connected to the multiple articulated shafts 1 of the X-lifting frame on the right, the left ends of the multiple stabilizer bars 2 are respectively rotatably connected to the multiple articulated shafts 2 of the X-lifting frame on the left, and the right ends of the multiple stabilizer bars 2 are respectively rotatably connected to the multiple articulated shafts 2 of the X-lifting frame on the right; the multiple stabilizer bars 1 and the multiple stabilizer bars 2 provide lateral auxiliary support to the adjacent multiple X-lifting frames, thereby improving the lateral stability of the multiple X-lifting frames.

[0008] Preferably, it also includes multiple shafts, multiple gears and two racks, the lower ends of the multiple connecting rods 1 and the multiple connecting rods 2 located at the bottom are all installed with shafts, the multiple shafts are arranged horizontally, and the two ends of the multiple shafts are rotatably installed with gears, the multiple gears are respectively meshed with the two racks, and the two racks are installed in parallel on the lower frame; when the lower frame is lifted or lowered, the lower ends of the multiple connecting rods 1 and the multiple connecting rods 2 are opened or closed, and the multiple gears are driven to roll on the two racks 1 through the multiple shafts. Since the multiple gears are meshed with the two racks, they are used to position the relative positions of the multiple X-lifting frames and the lower frame. After multiple lifting and lowering, the lower frame will not shift, so that the relative positions of the multiple X-lifting frames and the lower frame are always maintained at the positioned positions.

[0009] Preferably, it also includes multiple slides, multiple upper arm rods and multiple cross-links, the multiple slides are respectively installed on the piston rods of the multiple hydraulic cylinders, the multiple slides are slidably installed on the crossbeam, the middles of the multiple upper arm rods are respectively hinged to the multiple slides, the upper ends of the multiple connecting rods 1 and the multiple connecting rods 2 located at the top are respectively hinged to the lower ends of the multiple upper arm rods, and the two ends of the multiple cross-links are respectively hinged to the upper ends of the multiple upper arm rods; the multiple slides are suspended by the multiple connecting rods 1 and the multiple connecting rods 2 through the multiple upper arm rods, so that the multiple hydraulic cylinders do not bear Under the gravity of the workpiece and the multiple connecting rods one, the multiple connecting rods two, the lower frame and other structures, the reliability of the multiple hydraulic cylinders is improved. When the piston rods of the two hydraulic cylinders are synchronously extended and retracted, the two slides are pushed to be relatively far away or close to each other, so that the upper ends of the two upper arm rods are respectively rotated around the hinge shafts at both ends of the horizontal connecting rod, so that the lower ends of the two upper arm rods are opened or closed outward, forming a lever structure. When the piston rods of the two hydraulic cylinders are extended and retracted to a shorter length, the multiple connecting rods one and the multiple connecting rods two can be greatly opened or closed, thereby improving practicality.

[0010] Preferably, it also includes multiple detection heads and multiple arc angle scales, the multiple detection heads are respectively installed on the multiple upper arms, and the multiple arc angle scales are respectively installed on the slide, and the multiple detection heads and the multiple arc angle scales cooperate to measure the inclination angles of the multiple upper arms; when the multiple upper arms swing, the multiple detection heads and the multiple arc angle scales cooperate to measure the swinging angles of the upper arms, because the angles of the multiple upper arms are directly related to the degree of opening of the multiple connecting rods one and the multiple connecting rods two, thereby detecting the height of the lower frame.

[0011] Preferably, it also includes multiple slide seats, multiple push rods, multiple gears 2, motors and racks 2. The multiple slide seats are slidably installed on the crossbeam, and two relatively arranged hydraulic cylinders are respectively installed at the lower parts of the multiple slide seats. The multiple slide seats are connected by multiple push rods respectively, and multiple gears 2 are rotatably installed on the multiple slide seats respectively. The motor is installed on a slide seat, and the output shaft of the motor is transmission-connected with a gear 2. Rack 2 is installed on the crossbeam, and multiple gears 2 are meshed with rack 2; the motor drives gear 2 to rotate, and gear 2 meshes with rack 2 to drive the slide seat to move along the crossbeam. The slide seat drives the multiple slide seats to move synchronously through the multiple push rods, thereby driving the lower frame to move left and right through the multiple hydraulic cylinders and multiple X-lifting frames to adjust the lateral position of the workpiece to adapt to pickling tanks in different positions.

[0012] Preferably, it also includes multiple bearing seats, multiple bevel gears 1, two drive shafts, multiple bevel gears 2, two bevel gears 3, two short shafts, two bevel gears 4, two bevel gears 5, motor 2 and bevel gear 6. The multiple bearing seats are installed on both sides of the lower frame, the upper ends of the multiple suspension rods are respectively rotatably connected to the multiple bearing seats, the upper ends of the multiple suspension rods are concentrically installed with bevel gear 1, the two drive shafts are respectively rotatably installed on the lower frame, the multiple bevel gears 2 are concentrically installed on the two drive shafts, the multiple bevel gears 2 are respectively meshed with the multiple bevel gears 1, the two drive shafts are concentrically installed with bevel gears 3, the two short shafts are rotatably installed on the lower frame, and the outer ends of the two short shafts are concentrically installed Bevel gear four is installed, and the two bevel gear fours are respectively meshed with the two bevel gear threes, and the inner ends of the two short shafts are concentrically installed with bevel gear five, and motor two is installed on the lower frame, and bevel gear six is ​​concentrically installed on the output shaft of motor two, and bevel gear six is ​​meshed with the two bevel gear fives; motor two drives bevel gear six to rotate, bevel gear six meshes with the two bevel gear fives to drive the two short shafts and the two bevel gear fours to rotate, the two bevel gear fours mesh with the two bevel gear threes to drive the two driving shafts to rotate, the two driving shafts drive multiple bevel gear twos to rotate, and multiple bevel gear twos mesh with multiple bevel gear ones to drive multiple suspension rods to rotate, so that the lower ends of the multiple suspension rods can adjust the angle, which is convenient for mounting different workpieces and has good practicality.

[0013] Preferably, it also includes two roller grooves, two roller brushes and two exhaust pipes. The two roller grooves are respectively installed on the front and rear sides below the crossbeam. The two roller brushes are respectively rotatably installed in the two roller grooves. The two roller brushes roll and press the two X-lifting frames respectively. The two exhaust pipes are respectively installed on the two roller grooves. The two exhaust pipes are respectively connected to the inside of the two roller grooves. The two exhaust pipes are connected to an external exhaust fan. When the X-lifting frame is lifted, the two roller brushes roll and sweep the surface of both sides of the X-lifting frame to absorb the acidic liquid droplets contaminated on the surface of the X-lifting frame. When the exhaust fan is turned on, the acidic liquid droplets adsorbed on the two roller brushes are sucked away and discharged through the exhaust pipe, thereby improving the corrosion resistance of the X-lifting frame.

[0014] Preferably, it also includes an RFID reader and multiple RFID tags, the RFID reader is installed on the walking mechanism, and the multiple RFID tags are evenly installed on the track. The RFID reader cooperates with the multiple RFID tags to locate the position of the walking mechanism; the RFID reader sends radio frequency signals through a built-in antenna to form an electromagnetic field in space, and the walking mechanism moves on the track. When the RFID tag enters the electromagnetic field generated by the RFID reader, the RFID reader generates a current signal, thereby locating the relative position of the walking mechanism and the track, thereby improving the positioning accuracy of the walking mechanism and the beam.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: since the hydraulic cylinder and X-lifting frame replace the traditional wire rope, chain and motor, all structural components and movable components are rigid components without flexible structure, so the walking mechanism, crossbeam, hydraulic cylinder, X-lifting frame, lower frame and suspension rod can be wrapped with anti-corrosion, and the anti-corrosion wrapping material will not cause cracks during movement, thereby improving the safety and stability of the equipment, and the hydraulic cylinder is installed horizontally and cooperates with the X-lifting frame to effectively reduce the height of the entire system. The crane can be arranged in the pickling room to reduce the height of the automatic pickling room, which is beneficial to improve the sealing of the entire pickling room and reduce the requirements for the structural strength of the pickling room. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a front cross-sectional structural schematic diagram of the present invention; Figure 3 It is a schematic diagram of the side section structure of the present invention; Figure 4 It is a schematic diagram of the structure of the track, walking mechanism, beam, roller groove, roller brush, RFID reader and RFID tag; Figure 5 It is a schematic diagram of the structure of the hydraulic cylinder, X-lifting frame, etc.; Figure 6 yes Figure 5 A schematic diagram of the local enlarged structure at point A in the middle; Figure 7 It is a structural diagram of the hydraulic cylinder, slide, slide seat, push rod, gear 2, motor and rack 2; Figure 8 It is a structural diagram of structures such as the lower frame and the hanger.

[0017] Markings in the attached figure: 1, track; 2, walking mechanism; 3, crossbeam; 4, hydraulic cylinder; 5, X-lifting frame; 6, lower frame; 7, suspension rod; 8, connecting rod 1; 9, connecting rod 2; 10, articulated shaft 1; 11, articulated shaft 2; 12, articulated shaft 3; 13, stabilizer bar 1; 14, stabilizer bar 2; 15, shaft rod; 16, gear 1; 17, rack 1; 18, slide; 19, upper arm; 20, cross link; 21, detection head; 22, arc Angle ruler; 23. Slide seat; 24. Push rod; 25. Gear 2; 26. Motor; 27. Rack 2; 28. Bearing seat; 29. ​​Bevel gear 1; 30. Drive shaft; 31. Bevel gear 2; 32. Bevel gear 3; 33. Short shaft; 34. Bevel gear 4; 35. Bevel gear 5; 36. Motor 2; 37. Bevel gear 6; 38. Roller groove; 39. Roller brush; 40. Exhaust pipe; 41. RFID reader; 42. RFID tag. DETAILED DESCRIPTION

[0018] In order to facilitate understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive. Embodiment 1

[0019] like Figures 1 to 4As shown, a feeding crane for a closed automatic pickling line includes two tracks 1, two walking mechanisms 2 and a crossbeam 3. The two walking mechanisms 2 are arranged on the top of the closed pickling line. The two walking mechanisms 2 move on the two tracks 1 respectively through track wheels. The two ends of the crossbeam 3 are respectively connected to the two walking mechanisms 2; it also includes multiple lifting mechanisms, a lower frame 6 and multiple suspension rods 7. The upper ends of the multiple lifting mechanisms are connected to the crossbeam 3, the lower ends of the multiple lifting mechanisms are connected to the lower frame 6, and the upper ends of the multiple suspension rods 7 are connected to the lower frame 6. The lifting mechanism includes two hydraulic cylinders 4 and an X lifting frame 5. The two hydraulic cylinders 4 is horizontally installed on the crossbeam 3, the fixed ends of the two hydraulic cylinders 4 are arranged oppositely, the outer ends of the piston rods of the two hydraulic cylinders 4 are respectively connected to the upper end of the X-lifting frame 5, the lower end of the X-lifting frame 5 is connected to the lower frame 6, the piston rods of the two hydraulic cylinders 4 extend outward to push the upper end of the X-lifting frame 5 to open, so that the X-lifting frame 5 shrinks vertically, the piston rods of the two hydraulic cylinders 4 shrink inward to pull the upper end of the X-lifting frame 5 close together, so that the X-lifting frame 5 stretches, the walking mechanism 2, the crossbeam 3, the hydraulic cylinder 4, the X-lifting frame 5, the lower frame 6 and the suspension rod 7 are all wrapped with anti-corrosion; it also includes a plurality of slide seats 23, a plurality of push rods 24, A plurality of gears 25, motors 26 and racks 27, a plurality of slide seats 23 are slidably mounted on the cross beam 3, two hydraulic cylinders 4 arranged oppositely are respectively mounted at the lower parts of the plurality of slide seats 23, the plurality of slide seats 23 are respectively connected by a plurality of push rods 24, a plurality of gears 25 are respectively rotatably mounted on the plurality of slide seats 23, a motor 26 is mounted on a slide seat 23, the output shaft of the motor 26 is transmission-connected with a gear 25, a rack 27 is mounted on the cross beam 3, and a plurality of gears 25 are meshed with the rack 27; it also includes two roller grooves 38, two roller brushes 39 and two exhaust pipes 40, two The roller grooves 38 are respectively installed on the front and rear sides below the crossbeam 3, and the two roller brushes 39 are respectively rotatably installed in the two roller grooves 38. The two roller brushes 39 roll and press the two X lifting frames 5 respectively. The two exhaust pipes 40 are respectively installed on the two roller grooves 38, and the two exhaust pipes 40 are respectively connected to the inside of the two roller grooves 38; it also includes an RFID reader 41 and multiple RFID tags 42, the RFID reader 41 is installed on the walking mechanism 2, and the multiple RFID tags 42 are evenly installed on the track 1, and the RFID reader 41 cooperates with the multiple RFID tags 42 to locate the position of the walking mechanism 2.

[0020] A hydraulic oil tank and a hydraulic control system are installed on the crossbeam 3 to control the piston rod movement of multiple hydraulic cylinders 4. The electronic control system of the walking mechanism 2 is installed on the crossbeam 3, which adopts a sealed design and is used to control the automatic operation and positioning of the walking mechanism 2. During operation, the workpiece is hoisted on multiple suspension rods 7, and the piston rods of multiple hydraulic cylinders 4 extend outward synchronously, so that multiple X-lifting frames 5 shrink to raise the lower frame 6, so that multiple suspension rods 7 raise the workpiece above the pickling tank. The two walking mechanisms 2 move along the two tracks 1, driving the crossbeam 3 to pass through multiple pickling tanks in turn. In this process, the RFID reader 41 sends a radio frequency signal through the built-in antenna to form a space. Electromagnetic field, the walking mechanism 2 moves on the track 1. When the RFID tag 42 enters the electromagnetic field generated by the RFID reader 41, the RFID reader 41 generates a current signal, thereby positioning the relative position of the walking mechanism 2 and the track 1, improving the positioning accuracy of the walking mechanism 2 and the crossbeam 3. When the workpiece reaches the top of the pickling tank, the piston rods of the multiple hydraulic cylinders 4 are synchronously retracted inward, so that the multiple X-lifting frames 5 are extended to lower the lower frame 6, so that the multiple suspension rods 7 put the workpiece into the pickling tank. After the pickling is completed, the workpiece is lifted out and moved backward until all the pickling processes are completed. During the pickling process, the two exhaust pipes 40 are connected to the external exhaust machine. When the X-lifting frame 5 is lifted or lowered, the two roller brushes 39 roll and sweep the surfaces of both sides of the X-lifting frame 5 to absorb the acidic liquid droplets stained on the surface of the X-lifting frame 5. When the vacuum pump is turned on, the acidic liquid droplets absorbed on the two roller brushes 39 are sucked away and discharged through the vacuum pipe 40, thereby improving the corrosion resistance of the X-lifting frame 5. Since the hydraulic cylinder 4 and the X-lifting frame 5 replace the traditional steel wire rope\chain+motor, all structural components and moving parts are rigid components without flexible structure. Therefore, the walking mechanism 2, the crossbeam 3, the hydraulic cylinder 4, the X-lifting frame 5, the lower frame 6 and the suspension rod 7 can be wrapped with anti-corrosion, and the anti-corrosion wrapping material will not crack during movement, thereby improving the device. The safety and stability of the equipment are improved, and the hydraulic cylinder 4 is installed horizontally, and cooperates with the X-lifting frame 5, which can effectively reduce the height of the entire system. The crane can be arranged in the pickling room to reduce the height of the automatic pickling room, which is beneficial to improve the sealing of the entire pickling room and reduce the requirements for the structural strength of the pickling room. The motor 26 drives the gear 25 to rotate, and the gear 25 engages the rack 27 to drive the slide seat 23 to move along the beam 3. The slide seat 23 drives multiple slide seats 23 to move synchronously through multiple push rods 24, thereby driving the lower frame 6 to move left and right through multiple hydraulic cylinders 4 and multiple X-lifting frames 5 to adjust the lateral position of the workpiece to adapt to pickling tanks in different positions. Embodiment 2

[0021] like Figures 5 to 7As shown, on the basis of Example 1, the X lifting frame 5 includes a plurality of connecting rods 1 8, a plurality of connecting rods 2 9, a plurality of hinge shafts 10, a plurality of hinge shafts 2 11 and a plurality of hinge shafts 3 12, a plurality of connecting rods 1 8 are arranged in parallel up and down, a plurality of connecting rods 2 9 are arranged in parallel up and down, the corresponding connecting rods 1 8 and connecting rods 2 9 at the same height are arranged crosswise, and the intersection of the connecting rods 1 8 and the connecting rods 2 9 is hinged by the hinge shaft 3 12, the upper and lower adjacent connecting rods 1 8 and connecting rods 2 9 are aligned end to end, the lower end of the upper connecting rod 1 8 and the upper end of the connecting rod 2 9 located below it are hinged by the hinge shaft 2 11, the lower end of the upper connecting rod 2 9 and the upper end of the connecting rod 1 8 located below it are hinged by the hinge shaft 10, The upper end of the uppermost connecting rod 1 8 is connected to the piston rod of a hydraulic cylinder 4, the upper end of the uppermost connecting rod 2 9 is connected to the piston rod of another hydraulic cylinder 4, the lower end of the lowermost connecting rod 1 8 is connected to the lower frame 6, and the lower end of the lowermost connecting rod 2 9 is connected to the lower frame 6. The multiple connecting rods 1 8, multiple connecting rods 2 9, multiple articulated shafts 10, multiple articulated shafts 2 11 and multiple articulated shafts 3 12 are all wrapped in anti-corrosion; they also include multiple stabilizing rods 13 and multiple stabilizing rods 2 14, multiple The left ends of the plurality of stabilizing rods 13 are respectively rotatably connected to the plurality of articulated shafts 10 of the X-lifting frame 5 on the left side, the right ends of the plurality of stabilizing rods 13 are respectively rotatably connected to the plurality of articulated shafts 10 of the X-lifting frame 5 on the right side, the left ends of the plurality of stabilizing rods 2 14 are respectively rotatably connected to the plurality of articulated shafts 2 11 of the X-lifting frame 5 on the left side, and the right ends of the plurality of stabilizing rods 2 14 are respectively rotatably connected to the plurality of articulated shafts 2 11 of the X-lifting frame 5 on the right side; it also includes a plurality of shafts 15, a plurality of gears 16 and two racks 17, The lower ends of the multiple connecting rods 18 and the multiple connecting rods 29 located at the bottom are all installed with shaft rods 15, the multiple shaft rods 15 are arranged horizontally, and the two ends of the multiple shaft rods 15 are rotatably installed with gears 16, the multiple gears 16 are respectively meshed with two racks 17, and the two racks 17 are parallelly installed on the lower frame 6; it also includes multiple slides 18, multiple upper arm rods 19 and multiple cross-links 20, the multiple slides 18 are respectively installed on the piston rods of the multiple hydraulic cylinders 4, the multiple slides 18 are slidably installed on the crossbeam 3, and the middle of the multiple upper arm rods 19 The parts are respectively hinged to multiple slides 18, the upper ends of the multiple connecting rods 1 8 and the multiple connecting rods 2 9 located at the top are respectively hinged to the lower ends of the multiple upper arms 19, and the two ends of the multiple transverse connecting rods 20 are respectively hinged to the upper ends of the multiple upper arms 19; it also includes multiple detection heads 21 and multiple arc angle rulers 22, the multiple detection heads 21 are respectively installed on the multiple upper arms 19, and the multiple arc angle rulers 22 are respectively installed on the slide 18, and the multiple detection heads 21 and the multiple arc angle rulers 22 cooperate to measure the inclination angles of the multiple upper arms 19.

[0022] A plurality of connecting rods 18, a plurality of connecting rods 29, a plurality of articulated shafts 10, a plurality of articulated shafts 211 and a plurality of articulated shafts 312 constitute an X-shaped lifting frame, and a plurality of slides 18 hang a plurality of connecting rods 18 and a plurality of connecting rods 29 through a plurality of upper arm rods 19, so that the plurality of hydraulic cylinders 4 do not bear the gravity of the workpiece and the plurality of connecting rods 18, a plurality of connecting rods 29, a lower frame 6 and other structures, thereby improving the reliability of the plurality of hydraulic cylinders 4. When the piston rods of the two hydraulic cylinders 4 are synchronously extended and retracted, the two slides 18 are pushed relatively away or close to each other, so that the upper ends of the two upper arm rods 19 are respectively around the horizontal connecting rods 18 and the lower frame 6. The hinge shafts at both ends of the rod 20 rotate, so that the lower ends of the two upper arm rods 19 are opened or closed outward, forming a lever structure. When the piston rods of the two hydraulic cylinders 4 are retracted to a shorter length, the multiple connecting rods 1 8 and the multiple connecting rods 2 9 can be greatly opened or closed. When the multiple upper arm rods 19 swing, the multiple detection heads 21 and the multiple arc angle rulers 22 cooperate to measure the swing angle of the upper arm rods 19. Since the angles of the multiple upper arm rods 19 are directly related to the degree of opening of the multiple connecting rods 1 8 and the multiple connecting rods 2 9, the height of the lower frame 6 is detected. The lower end of the arm 19 pushes the multiple connecting rods 1 8 and the multiple connecting rods 2 9 to rotate around the multiple hinge shafts 3 12 to the horizontal state, so that the multiple connecting rods 1 8 and the multiple connecting rods 2 9 are retracted upward to raise the lower frame 6. Similarly, when the piston rods of the two hydraulic cylinders 4 are synchronously retracted inward, the lower frame 6 is lowered. The technology is mature and reliable. When the walking mechanism 2 runs at a high speed, the multiple stabilizing rods 1 13 and the multiple stabilizing rods 2 14 provide lateral auxiliary support to the adjacent multiple X lifting frames 5, improve the lateral stability of the multiple X lifting frames 5, and reduce the left and right shaking and the front and back shaking of the workpiece. The lower frame 6 is movable, thereby increasing the stability of the entire lifting system and reducing the required height of the entire lifting part. When the lower frame 6 is lifted or lowered, the lower ends of the multiple connecting rods 8 and the multiple connecting rods 9 are opened or closed, and the multiple gears 16 are driven to roll on the two racks 17 through the multiple shafts 15. Since the multiple gears 16 are engaged with the two racks 17, they are used to position the relative positions of the multiple X lifting frames 5 and the lower frame 6. After multiple lifting and lowering, the lower frame 6 will not shift, so that the relative positions of the multiple X lifting frames 5 and the lower frame 6 are always maintained at the positioned positions. Embodiment 3

[0023] like Figure 1 , Figure 2 and Figure 8As shown, on the basis of Example 1, it also includes multiple bearing seats 28, multiple bevel gears 1 29, two drive shafts 30, multiple bevel gears 2 31, two bevel gears 3 32, two short shafts 33, two bevel gears 4 34, two bevel gears 5 35, motor 2 36 and bevel gear 6 37, multiple bearing seats 28 are installed on both sides of the lower frame 6, the upper ends of the multiple suspension rods 7 are respectively rotatably connected to the multiple bearing seats 28, the upper ends of the multiple suspension rods 7 are concentrically installed with bevel gears 1 29, the two drive shafts 30 are respectively rotatably installed on the lower frame 6, and the two drive shafts 30 are A plurality of bevel gears 2 31 are concentrically mounted, and the plurality of bevel gears 2 31 are respectively meshed with a plurality of bevel gears 1 29; a bevel gear 3 32 is concentrically mounted on the two drive shafts 30; two short shafts 33 are rotatably mounted on the lower frame 6; a bevel gear 4 34 is concentrically mounted on the outer ends of the two short shafts 33; the two bevel gears 4 34 are respectively meshed with the two bevel gears 3 32; a bevel gear 5 35 is concentrically mounted on the inner ends of the two short shafts 33; a motor 2 36 is mounted on the lower frame 6; a bevel gear 6 37 is concentrically mounted on the output shaft of the motor 2 36; the bevel gear 6 37 is meshed with the two bevel gears 5 35.

[0024] Motor 2 36 drives bevel gear 6 37 to rotate, bevel gear 6 37 engages with two bevel gears 5 35 to drive two short shafts 33 and two bevel gears 4 34 to rotate, two bevel gears 4 34 engage with two bevel gears 3 32 to drive two drive shafts 30 to rotate, the two drive shafts 30 drive multiple bevel gears 2 31 to rotate, multiple bevel gears 2 31 engage with multiple bevel gears 1 29 to drive multiple suspension rods 7 to rotate, thereby adjusting the angle of the lower ends of the multiple suspension rods 7 to facilitate the mounting of different workpieces.

[0025] like Figures 1 to 8As shown, a feeding crane for a closed automatic pickling line of the present invention, when working, firstly, motor 2 36 drives bevel gear 6 37 to rotate, bevel gear 6 37 meshes with two bevel gears 5 35 to drive two short shafts 33 and two bevel gears 4 34 to rotate, two bevel gears 4 34 mesh with two bevel gears 3 32 to drive two driving shafts 30 to rotate, two driving shafts 30 drive multiple bevel gears 2 31 to rotate, multiple bevel gears 2 31 mesh with multiple bevel gears 1 29 to drive multiple suspension rods 7 to rotate, so that the lower ends of multiple suspension rods 7 adjust the angle, and the workpieces are hoisted on the multiple suspension rods 7, and then the piston rods of multiple hydraulic cylinders 4 extend outward synchronously, pushing the two slides 18 relatively away, pushing the upper ends of the two upper arm rods 19 to rotate around the hinge shafts at both ends of the horizontal connecting rod 20 respectively, so that the lower ends of the two upper arm rods 19 open outward, so that multiple connecting rods 1 8 and multiple connecting rods 2 9 open greatly, and the lower frame 6 is lifted. The workpiece is raised to the pickling tank by the plurality of suspension rods 7, and then the two walking mechanisms 2 move along the two tracks 1, driving the crossbeam 3 to pass through the plurality of pickling tanks in sequence. When the RFID tag 42 enters the electromagnetic field generated by the RFID reader 41, the RFID reader 41 generates a current signal, thereby positioning the relative position of the walking mechanism 2 and the track 1. When the workpiece reaches the top of the pickling tank, the piston rods of the plurality of hydraulic cylinders 4 contract inward synchronously, so that the plurality of X lifting frames 5 extend to lower the lower frame 6, so that the plurality of suspension rods 7 place the workpiece into the pickling tank. After the pickling is completed, the workpiece is lifted out and moved backward until all the pickling processes are completed. Finally, when the X lifting frame 5 is lifted, the two roller brushes 39 roll and sweep the surfaces of both sides of the X lifting frame 5 to absorb the acid droplets on the surface of the X lifting frame 5. The vacuum pump is turned on to absorb and discharge the acid droplets adsorbed on the two roller brushes 39 through the vacuum pipe 40.

[0026] The main functions achieved by the present invention are: 1. All structural parts and moving parts are rigid parts and can be wrapped with anti-corrosion to improve the safety and stability of the equipment; 2. The hydraulic cylinder 4 is installed horizontally and cooperates with the X lifting frame 5 to effectively reduce the height of the entire system. The crane can be arranged in the pickling room to reduce the height of the automatic pickling room, which is beneficial to improve the sealing of the entire pickling room and reduce the requirements for the structural strength of the pickling room; 3. By setting the horizontal tie rod, the left and right shaking and the front and back shaking of the workpiece can be reduced, and the stability of the entire lifting system can be increased; 4. It can clean and wipe the acid droplets on the surface of the X lifting frame 5, and improve the corrosion resistance of the X lifting frame 5; 5. Cooperate with the RFID electronic tag system to locate the relative position of the walking mechanism 2 and the track 1, and improve the positioning accuracy of the walking mechanism 2 and the beam 3.

[0027] The present invention is a feeding crane for a closed automatic pickling line, and its installation method, connection method or setting method are all common mechanical methods, and can be implemented as long as the beneficial effects can be achieved; the track 1, walking mechanism 2, crossbeam 3, hydraulic cylinder 4, X lifting frame 5, connecting rod 1 8, connecting rod 2 9, articulated shaft 1 10, articulated shaft 2 11, articulated shaft 3 12, shaft 15, gear 1 16, rack 1 17, detection head 21, arc angle ruler 22, slide seat 23, gear 2 25, motor 26, rack 2 27, bevel gear 1 29, bevel gear 2 31, bevel gear 3 32, short shaft 33, bevel gear 4 34, bevel gear 5 35, motor 2 36, bevel gear 6 37, roller brush 39, RFID reader 41, and RFID tag 42 of the feeding crane for a closed automatic pickling line are purchased on the market, and technicians in the industry only need to install and operate them according to the accompanying instruction manual without the need for creative labor by technicians in this field.

[0028] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A loading crane for a closed automatic pickling line, comprising two rails (1), two running mechanisms (2) and a crossbeam (3), wherein the two running mechanisms (2) are arranged on the top of the closed pickling line, the two running mechanisms (2) move on the two rails (1) respectively through rail wheels, and the two ends of the crossbeam (3) are respectively connected to the two running mechanisms (2); characterized in that: The invention also comprises a plurality of lifting mechanisms, a lower frame (6) and a plurality of suspension rods (7), wherein the upper ends of the plurality of lifting mechanisms are connected to the cross beam (3), the lower ends of the plurality of lifting mechanisms are connected to the lower frame (6), and the upper ends of the plurality of suspension rods (7) are connected to the lower frame (6); the lifting mechanisms comprise two hydraulic cylinders (4) and an X-lifting frame (5), wherein the two hydraulic cylinders (4) are horizontally mounted on the cross beam (3), the fixed ends of the two hydraulic cylinders (4) are arranged opposite to each other, and the outer ends of the piston rods of the two hydraulic cylinders (4) are respectively connected to the X-lifting frame. The upper end of the X-lifting frame (5) is connected to the transmission, the lower end of the X-lifting frame (5) is connected to the lower frame (6), the piston rods of the two hydraulic cylinders (4) extend outward to push the upper end of the X-lifting frame (5) to open, so that the X-lifting frame (5) contracts vertically, the piston rods of the two hydraulic cylinders (4) contract inward to pull the upper end of the X-lifting frame (5) closer, so that the X-lifting frame (5) extends, and the walking mechanism (2), the crossbeam (3), the hydraulic cylinder (4), the X-lifting frame (5), the lower frame (6) and the suspension rod (7) are all wrapped with anti-corrosion.

2. A feeding crane for a closed automatic pickling line as claimed in claim 1, characterized in that: The X-lifting frame (5) comprises a plurality of connecting rods (8), a plurality of connecting rods (9), a plurality of hinge shafts (10), a plurality of hinge shafts (11) and a plurality of hinge shafts (12). The plurality of connecting rods (8) are arranged in parallel vertically, the plurality of connecting rods (9) are arranged in parallel vertically, the corresponding connecting rods (8) and connecting rods (9) at the same height are arranged crosswise, and the intersection of the connecting rods (8) and connecting rods (9) is hinged through the hinge shaft (12), the connecting rods (8) and connecting rods (9) adjacent to each other vertically are aligned end to end, the lower end of the connecting rod (8) located above and the upper end of the connecting rod (9) located below are hinged through the hinge shaft (11), and the connecting rods (8) and connecting rods (9) located at the same height are arranged crosswise, and the intersection of the connecting rods (8) and connecting rods (9) is hinged through the hinge shaft (12), the connecting rods (8) and connecting rods (9) adjacent to each other vertically are aligned end to end, the lower end of the connecting rod (8) located above and the upper end of the connecting rod (9) located below are hinged through the hinge shaft (11), and the connecting rods (8) and connecting rods (9) located at the same height are arranged crosswise. The lower end of the upper connecting rod 2 (9) and the upper end of the connecting rod 1 (8) located below are hinged via an articulated shaft 1 (10); the upper end of the connecting rod 1 (8) located at the top is transmission-connected to the piston rod of a hydraulic cylinder (4); the upper end of the connecting rod 2 (9) located at the top is transmission-connected to the piston rod of another hydraulic cylinder (4); the lower end of the connecting rod 1 (8) located at the bottom is transmission-connected to the lower frame (6); the lower end of the connecting rod 2 (9) located at the bottom is transmission-connected to the lower frame (6); and the plurality of connecting rods 1 (8), the plurality of connecting rods 2 (9), the plurality of articulated shafts 1 (10), the plurality of articulated shafts 2 (11) and the plurality of articulated shafts 3 (12) are all wrapped in anti-corrosion.

3. A feeding crane for a closed automatic pickling line as claimed in claim 2, characterized in that: The invention also comprises a plurality of stabilizing rods 1 (13) and a plurality of stabilizing rods 2 (14), wherein the left ends of the plurality of stabilizing rods 1 (13) are respectively rotatably connected to the plurality of hinge shafts 1 (10) of the X-lifting frame (5) on the left side, the right ends of the plurality of stabilizing rods 1 (13) are respectively rotatably connected to the plurality of hinge shafts 1 (10) of the X-lifting frame (5) on the right side, the left ends of the plurality of stabilizing rods 2 (14) are respectively rotatably connected to the plurality of hinge shafts 2 (11) of the X-lifting frame (5) on the left side, and the right ends of the plurality of stabilizing rods 2 (14) are respectively rotatably connected to the plurality of hinge shafts 2 (11) of the X-lifting frame (5) on the right side.

4. A feeding crane for a closed automatic pickling line as claimed in claim 2, characterized in that: It also includes a plurality of shafts (15), a plurality of gears (16) and two racks (17), wherein the lower ends of the plurality of connecting rods (8) and the plurality of connecting rods (9) located at the bottom are all mounted with shafts (15), the plurality of shafts (15) are arranged horizontally, and gears (16) are rotatably mounted at both ends of the plurality of shafts (15), the plurality of gears (16) are respectively meshed with the two racks (17), and the two racks (17) are mounted in parallel on the lower frame (6).

5. A loading crane for a closed automatic pickling line as claimed in claim 2, characterized in that: It also includes a plurality of slides (18), a plurality of upper arm rods (19) and a plurality of transverse connecting rods (20), wherein the plurality of slides (18) are respectively mounted on the piston rods of the plurality of hydraulic cylinders (4), the plurality of slides (18) are slidably mounted on the crossbeam (3), the middle portions of the plurality of upper arm rods (19) are respectively hinged to the plurality of slides (18), the upper ends of the plurality of connecting rods one (8) and the plurality of connecting rods two (9) located at the top are respectively hinged to the lower ends of the plurality of upper arm rods (19), and the two ends of the plurality of transverse connecting rods (20) are respectively hinged to the upper ends of the plurality of upper arm rods (19).

6. A loading crane for a closed automatic pickling line as claimed in claim 5, characterized in that: It also comprises a plurality of detection heads (21) and a plurality of arc angle scales (22); the plurality of detection heads (21) are respectively mounted on the plurality of upper arm rods (19); the plurality of arc angle scales (22) are respectively mounted on the slide table (18); the plurality of detection heads (21) and the plurality of arc angle scales (22) cooperate to measure the tilt angles of the plurality of upper arm rods (19).

7. A loading crane for a closed automatic pickling line as claimed in claim 1, characterized in that: The invention also comprises a plurality of slide seats (23), a plurality of push rods (24), a plurality of gears (25), a motor (26) and a gear (27). The plurality of slide seats (23) are slidably mounted on the crossbeam (3). Two hydraulic cylinders (4) arranged opposite to each other are respectively mounted at the lower parts of the plurality of slide seats (23). The plurality of slide seats (23) are respectively connected via a plurality of push rods (24). The plurality of gears (25) are respectively rotatably mounted on the plurality of slide seats (23). The motor (26) is mounted on one slide seat (23). The output shaft of the motor (26) is transmission-connected to a gear (25). The gear (27) is mounted on the crossbeam (3). The plurality of gears (25) are meshed with the gear (27).

8. A loading crane for a closed automatic pickling line as claimed in claim 1, characterized in that: It also includes a plurality of bearing seats (28), a plurality of bevel gears (29), two drive shafts (30), a plurality of bevel gears (31), two bevel gears (32), two short shafts (33), two bevel gears (34), two bevel gears (35), a motor (36) and a bevel gear (37). The plurality of bearing seats (28) are mounted on both sides of the lower frame (6). The upper ends of the plurality of suspension rods (7) are rotatably connected to the plurality of bearing seats (28). The upper ends of the plurality of suspension rods (7) are concentrically mounted with the bevel gears (29). The two drive shafts (30) are rotatably mounted on the lower frame (6). The plurality of bevel gears (31) are concentrically mounted on the two drive shafts (30). Gear 2 (31), multiple bevel gears 2 (31) are respectively meshed with multiple bevel gears 1 (29), bevel gear 3 (32) is concentrically mounted on the two drive shafts (30), two short shafts (33) are rotatably mounted on the lower frame (6), bevel gear 4 (34) is concentrically mounted on the outer ends of the two short shafts (33), the two bevel gears 4 (34) are respectively meshed with the two bevel gears 3 (32), bevel gear 5 (35) is concentrically mounted on the inner ends of the two short shafts (33), motor 2 (36) is mounted on the lower frame (6), bevel gear 6 (37) is concentrically mounted on the output shaft of motor 2 (36), and bevel gear 6 (37) is meshed with the two bevel gears 5 (35).

9. A loading crane for a closed automatic pickling line as claimed in claim 1, characterized in that: It also includes two roller grooves (38), two roller brushes (39) and two air extraction pipes (40), the two roller grooves (38) are respectively mounted on the front and rear sides below the crossbeam (3), the two roller brushes (39) are respectively rotatably mounted in the two roller grooves (38), the two roller brushes (39) respectively roll and press the two X-lifting frames (5), the two air extraction pipes (40) are respectively mounted on the two roller grooves (38), and the two air extraction pipes (40) are respectively connected to the inside of the two roller grooves (38).

10. A loading crane for a closed automatic pickling line as claimed in claim 1, characterized in that: It also includes an RFID reader (41) and a plurality of RFID tags (42); the RFID reader (41) is mounted on the walking mechanism (2); the plurality of RFID tags (42) are evenly mounted on the track (1); the RFID reader (41) cooperates with the plurality of RFID tags (42) to locate the position of the walking mechanism (2).

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