Mechanism for preventing oil from entering transfer fork arm of oil quenching furnace

Abstract

The utility model discloses a mechanism for preventing oil from entering a transfer fork arm of an oil quenching furnace, which is characterized by comprising two supports arranged in parallel, a material platform is arranged between the two supports, and a support block is arranged at the upper part of the material platform; a material platform lifting mechanism for driving the material platform to move up and down is arranged on the bracket; lifting tables are arranged on the left side and the right side of the material table, fork arm lifting mechanisms for driving the lifting tables to ascend and descend are arranged on the support, fork arm opening and closing guide rails are arranged on the upper portions of the lifting tables, two sliding seats are arranged on the fork arm opening and closing guide rails in a sliding mode, sliding rails are connected to the two sliding seats corresponding left and right, and fork arms are arranged on the sliding rails. When materials are transferred, the fork arm does not enter quenching oil along with the materials, so that the pollution of the quenching oil to the fork arm is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of oil quenching furnace equipment, in particular to a non-oiling mechanism for a transfer fork arm of an oil quenching furnace. Background Art

[0002] The vacuum oil quenching furnace is divided into two chambers, a heating chamber and a quenching chamber. The movement of materials in the two chambers is achieved through an internal transfer mechanism to transfer materials from the heating chamber to the quenching chamber, or from the quenching chamber to the heating chamber.

[0003] With the current domestic transfer mechanism technology, when the material is transferred to the quenching chamber for oil quenching after heat treatment, the transfer mechanism is immersed in the quenching oil together with the material. Such a mechanism will cause a large amount of quenching oil residue to adhere to the transfer mechanism. When the next furnace of new material is transferred, the transfer mechanism will bring the quenching oil residue into the heating chamber, causing the insulation layer and heating elements of the heating chamber to be contaminated, and the vacuum degree of the entire chamber of the heating chamber will be destroyed. Summary of the invention

[0004] The utility model aims to overcome the deficiencies of the prior art and provide a non-oiling mechanism for transferring fork arms of an oil quenching furnace.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A non-oiling mechanism for transferring a fork arm of an oil quenching furnace comprises two parallel brackets, a material platform is arranged between the two brackets, and a support block is arranged on the upper part of the material platform; a material platform lifting mechanism for driving the material platform to move up and down is arranged on the bracket; lifting platforms are arranged on the left and right sides of the material platform, and a fork arm lifting mechanism for driving the lifting platform to move up and down is arranged on the bracket, a fork arm opening and closing guide rail is arranged on the upper part of the lifting platform, two sliding seats are slidably arranged on the fork arm opening and closing guide rail, a slide rail is connected between the upper parts of the two corresponding sliding seats on the left and right, a fork arm is arranged on the slide rail, and the two fork arms are respectively located on both sides of the support block, and also includes a fork arm moving mechanism for driving the fork arm to move on the slide rail, and a fork arm opening and closing mechanism for controlling the two fork arms to be relatively close or far away.

[0007] Preferably, the material table lifting mechanism includes a driving motor, an upper rotating shaft and a lower rotating shaft are respectively rotatably arranged between the upper and lower parts of the two brackets, the driving motor is drivingly connected to the upper rotating shaft, sprockets are arranged on the upper and lower rotating shafts, a chain is connected between the sprockets on the upper and lower rotating shafts, and a connecting block connected to the chain is arranged on the material table.

[0008] Preferably, a material table lifting guide rail is provided on the inner side of the bracket, and the material table is slidably arranged on the material table lifting guide rail.

[0009] Preferably, the fork arm lifting mechanism includes a dual-axis motor and two sets of lifting components, the two sets of lifting components are respectively located above the two lifting platforms, the lifting components include a steering gear and two spiral screw lifting mechanisms, the output shaft of the steering gear is connected to one of the spiral screw lifting mechanisms, a transmission rod is connected between the two spiral screw lifting mechanisms, the two spiral screw lifting mechanisms are respectively located above the two ends of the lifting platform, the spiral screw lifting mechanism drive is connected with a connecting rod, fixed blocks are provided at both ends of the upper part of the lifting platform, the lower end of the connecting rod is hinged to the fixed block, and the motor shafts at both ends of the dual-axis motor are respectively connected to the input shafts of the two steering gears.

[0010] Preferably, sliders are connected to both ends of the lifting platform, and the sliders are slidably arranged on the fork arm lifting guide rails.

[0011] Preferably, the fork arm opening and closing mechanism includes a hydraulic cylinder, a piston rod of the hydraulic cylinder is connected to a rotating seat, a rotating wheel is rotatably arranged on the rotating seat, a connecting plate is connected to the side of the sliding seat, a vertically arranged waist-circular hole is opened on the connecting plate, and the rotating wheel is arranged in the waist-circular hole.

[0012] Compared with the prior art, the utility model has the following beneficial effects: after the fork arm transfers the material to the quenching chamber, the fork arm descends and places the material on the material table, and the fork arm separates again, and the material is quenched in oil along with the material table, while the fork arm does not enter the oil, thereby reducing the contamination of the quenching oil to the fork arm. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 for Figure 1 A magnified schematic diagram of center A.

[0015] Figure numerals: 1. bracket; 2. lifting platform; 3. fork arm opening and closing guide rail; 4. sliding seat; 5. fixed block; 6. fork arm lifting guide rail; 7. slider; 8. slide rail; 9. fork arm; 10. support block; 11. material platform; 12. hydraulic cylinder; 13. rotating seat; 14. connecting plate; 15. waist round hole; 16. rotating wheel; 17. driving motor; 18. upper rotating shaft; 19. lower rotating shaft; 20. chain; 21. sprocket; 22. material platform lifting guide rail; 23. connecting rod; 24. spiral screw lifting mechanism; 25. transmission rod; 26. dual-axis motor; 27. steering gear. DETAILED DESCRIPTION

[0016] The following is combined with Figure 1-2 The embodiments of the present utility model are described in detail.

[0017] A non-oiling mechanism for transferring a fork arm of an oil quenching furnace comprises two parallel brackets 1, a material platform 11 is arranged between the two brackets 1, and a support block 10 is arranged on the upper part of the material platform 11; a material platform lifting mechanism for driving the material platform 11 to move up and down is arranged on the bracket 1; a lifting platform 2 is arranged on the left and right sides of the material platform 11, and a fork arm lifting mechanism for driving the lifting platform 2 to move up and down is arranged on the bracket 1, a fork arm opening and closing guide rail 3 is arranged on the upper part of the lifting platform 2, two sliding seats 4 are slidably arranged on the fork arm opening and closing guide rail 3, a slide rail 8 is connected between the upper parts of the two corresponding sliding seats 4 on the left and right, a fork arm 9 is arranged on the slide rail 8, and the two fork arms 9 are respectively located on the two sides of the support block 10, and also include a fork arm moving mechanism for driving the fork arm 9 to move on the slide rail 8, and a fork arm opening and closing mechanism for controlling the two fork arms 9 to move relatively close or away, and the overall device is installed in the quenching chamber.

[0018] When the material in the heating chamber is heated, the fork arm lifting mechanism controls the lifting platform 2 to move downward, so that the fork arm 9 descends. After descending to the right position, the fork arm moving mechanism drives the fork arm 9 to move toward the heating chamber. After the fork arm 9 extends into the heating chamber, the fork arm 9 is controlled to rise by the fork arm lifting mechanism. During the rising process, the fork arm 9 lifts the material. At this time, the fork arm 9 is driven to retract by the fork arm moving mechanism, and the fork arm 9 carries the material to move toward the quenching chamber. When the fork arm 9 is retracted to the right position, the fork arm lifting mechanism drives the fork arm 9 to descend again. During the descent, the material is placed on the support block 10 of the material platform 11, and the material is supported by the support block 10, and the fork arm 9 is separated from the material. The fork arm opening and closing mechanism controls the two forks 9 to move relatively far away, so that the fork arm 9 leaves the bottom of the material, so as not to affect the descent of the material. The material platform lifting mechanism controls the material platform 11 to descend and immerse it in the quenching oil, thereby completing the entire quenching transfer process. The fork arm 9 does not enter the oil with the material, reducing the contamination of the quenching oil to the fork arm 9.

[0019] Preferably, the material platform lifting mechanism includes a driving motor 17, an upper shaft 18 and a lower shaft 19 are rotatably arranged between the upper and lower parts of the two brackets 1, respectively, the driving motor 17 is drivingly connected to the upper shaft 18, sprockets 21 are arranged on the upper shaft 18 and the lower shaft 19, a chain 20 is connected between the sprockets 21 on the upper shaft 18 and the lower shaft 19, and the upper shaft 18 and the lower shaft 19 are synchronously rotated by the cooperation of the chain 20 and the sprocket 21, and a connecting block connected to the chain 20 is arranged on the material platform 11. The driving motor 17 drives the upper shaft 18 to rotate, and the upper shaft 18 drives the chain 20 to move, thereby driving the material platform 11 to move up and down through the connecting block.

[0020] Preferably, a material table lifting guide rail 22 is provided on the inner side of the bracket 1, and the material table 11 is slidably set on the material table lifting guide rail 22. The cooperation between the material table 11 and the material table lifting guide rail 22 provides smooth and accurate guidance.

[0021] Preferably, the fork arm lifting mechanism includes a dual-axis motor 26 and two groups of lifting components, the two groups of lifting components are respectively located above the two lifting platforms 2, the lifting components include a steering gear 27 and two spiral screw lifting mechanisms 24, the output shaft of the steering gear 27 is connected to the spiral pair of one of the spiral screw lifting mechanisms 24 for driving, a transmission rod 25 is connected between the two spiral screw lifting mechanisms 24, the transmission rod 25 is connected to the spiral pairs of the two spiral screw lifting mechanisms 24 for transmission, the two spiral screw lifting mechanisms 24 are respectively located above the two ends of the lifting platform 2, the spiral screw lifting mechanism 24 is driven and connected with a connecting rod 23, fixed blocks 5 are provided at both ends of the upper part of the lifting platform 2, the lower end of the connecting rod 23 is hinged to the fixed block 5, and the motor shafts at both ends of the dual-axis motor 26 are respectively connected to the input shafts of the two steering gears 27. The motor shafts at both ends of the dual-axis motor 26 drive the diverters 27 on both sides respectively, so that the diverters 27 drive the corresponding screw screw lifting mechanisms 24, and the screw screw lifting mechanisms 24 are then transmitted through the transmission rods 25. The screw screw lifting mechanisms 24 operate synchronously, so that the two lifting platforms 2 are lifted and lowered synchronously to ensure that the fork arm 9 will not deflect during the up and down movement.

[0022] Preferably, sliders 7 are connected to both ends of the lifting platform 2, and the sliders 7 are slidably set on the fork arm lifting guide rails 6. The cooperation between the sliders 7 and the fork arm lifting guide rails 6 makes the lifting platform 2 less likely to shake during lifting and lowering, and the lifting and lowering are stable.

[0023] Preferably, the fork arm opening and closing mechanism includes a hydraulic cylinder 12, a rotating seat 13 is connected to the piston rod of the hydraulic cylinder 12, a rotating wheel 16 is rotatably arranged on the rotating seat 13, a connecting plate 14 is connected to the side of the sliding seat 4, a vertically arranged waist-shaped hole 15 is opened on the connecting plate 14, and the rotating wheel 16 is arranged in the waist-shaped hole 15. The setting of the waist-shaped hole 15 prevents the connecting plate 14 from colliding with the rotating wheel 16 when the lifting platform 2 is lifted or lowered. When the fork arm 9 needs to be opened and closed, the extension and contraction of the piston rod is controlled by the hydraulic cylinder 12, and the rotating wheel 16 acts on the connecting plate 14, thereby driving the sliding seat 4 to move along the fork arm opening and closing guide rail 3, so as to achieve the approach or distance between the two fork arms 9.

[0024] Preferably, the fork arm moving mechanism may be a cylinder disposed on the slide rail 8 , the piston rod of the cylinder being connected to the fork arm 9 , and the cylinder drives the fork arm 9 to move on the slide rail 8 by controlling the extension and retraction of its piston rod.

[0025] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A non-oiling mechanism for transferring fork arms of an oil quenching furnace, characterized in that: The invention comprises two brackets (1) arranged in parallel, a material platform (11) is arranged between the two brackets (1), and a support block (10) is arranged on the upper part of the material platform (11); a material platform lifting mechanism for driving the material platform (11) to move up and down is arranged on the bracket (1); a lifting platform (2) is arranged on the left and right sides of the material platform (11), and a fork arm lifting mechanism for driving the lifting platform (2) to move up and down is arranged on the bracket (1); a fork arm opening and closing guide rail (3) is arranged on the upper part of the lifting platform (2), two sliding seats (4) are slidably arranged on the fork arm opening and closing guide rail (3), a slide rail (8) is connected between the upper parts of the two corresponding sliding seats (4) on the left and right, a fork arm (9) is arranged on the slide rail (8), and the two fork arms (9) are respectively located on the two sides of the support block (10); and it also comprises a fork arm moving mechanism for driving the fork arm (9) to move on the slide rail (8), and a fork arm opening and closing mechanism for controlling the two fork arms (9) to move relatively close to or away from each other.

2. The oil quenching furnace transfer fork arm non-oiling mechanism according to claim 1, characterized in that: The material platform lifting mechanism comprises a driving motor (17); an upper rotating shaft (18) and a lower rotating shaft (19) are rotatably arranged between the upper parts and the lower parts of the two brackets (1), respectively; the driving motor (17) is drivingly connected to the upper rotating shaft (18); sprockets (21) are arranged on the upper rotating shaft (18) and the lower rotating shaft (19); a chain (20) is connected between the sprockets (21) on the upper rotating shaft (18) and the lower rotating shaft (19); and a connecting block connected to the chain (20) is arranged on the material platform (11).

3. The oil quenching furnace transfer fork arm non-oiling mechanism according to claim 2, characterized in that: A material platform lifting guide rail (22) is arranged on the inner side of the bracket (1), and the material platform (11) is slidably arranged on the material platform lifting guide rail (22).

4. The oil quenching furnace transfer fork arm non-oiling mechanism according to claim 1, characterized in that: The fork arm lifting mechanism comprises a double-axis motor (26) and two groups of lifting components. The two groups of lifting components are respectively located above the two lifting platforms (2). The lifting components include a steering gear (27) and two spiral screw lifting mechanisms (24). The output shaft of the steering gear (27) is connected to one of the spiral screw lifting mechanisms (24). A transmission rod (25) is connected between the two spiral screw lifting mechanisms (24). The two spiral screw lifting mechanisms (24) are respectively located above the two ends of the lifting platform (2). The spiral screw lifting mechanisms (24) are drivingly connected to connecting rods (23). Fixed blocks (5) are provided at both ends of the upper part of the lifting platform (2). The lower end of the connecting rod (23) is hinged to the fixed block (5). The motor shafts at both ends of the double-axis motor (26) are respectively connected to the input shafts of the two steering gears (27).

5. The oil quenching furnace transfer fork arm non-oiling mechanism according to claim 4, characterized in that: Slide blocks (7) are respectively connected to both ends of the lifting platform (2), and the slide blocks (7) are slidably arranged on the fork arm lifting guide rails (6).

6. The oil quenching furnace transfer fork arm non-oiling mechanism according to claim 1, characterized in that: The fork arm opening and closing mechanism comprises a hydraulic cylinder (12), a piston rod of the hydraulic cylinder (12) is connected to a rotating seat (13), a rotating wheel (16) is rotatably arranged on the rotating seat (13), a connecting plate (14) is connected to the side of the sliding seat (4), a vertically arranged waist-shaped hole (15) is opened on the connecting plate (14), and the rotating wheel (16) is arranged in the waist-shaped hole (15).

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