Lifting and rotating device for furnace barrel of single crystal furnace
By adopting a combination design of short rod cylinder, spherical bearing and thrust bearing in the lifting and rotating device of single crystal furnace cylinder, the problems of insufficient strength and low rotation accuracy of long rod cylinder are solved, realizing high-precision and stable lifting and rotation of furnace cylinder, and simplifying the maintenance process.
Patent Information
- Application Number
- CN202422925308.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2034-11-28
AI Technical Summary
In existing single crystal furnace cylinder lifting and rotating devices, the long rod hydraulic cylinder has insufficient strength, the anti-rotation structure is easily damaged, the rotation accuracy is low, maintenance is difficult, and the rotation range is small.
The system uses a short-rod hydraulic cylinder connected to a spherical bearing, with the thrust bearing rotating and the slider sliding on the guide rail. Combined with a photoelectric limit sensor and a combined reducer, it achieves stable lifting and high-precision rotation of the furnace cylinder.
It improves the strength and rotational accuracy of the device, reduces maintenance difficulty, expands the rotational range, and ensures operational stability and reliability.
Smart Images
Figure CN223723291U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to single crystal furnace relevant technical field, concretely is a single crystal furnace furnace cylinder lifting rotary device. BACKGROUND
[0002] At present, most of the furnace cylinder lifting rotary devices for single crystal furnace in the market are long rod oil cylinders driving three claws to lift, and the rotating structure is a gear set rotating, relying on limiting to determine the position, and rotating relies on three-phase motor driving speed reducer and gear set to rotate, the three claws are installed on the pressure bearing and rely on limiting to stop.
[0003] The structure lifting relies on long piston rod oil cylinder, and the lateral force bearing of the furnace cylinder lifting completely relies on the piston rod, so the piston rod strength requirement is higher, however, the oil cylinder rotation stopping structure is the piston rod slotting, which can reduce the piston rod strength, improve the use risk, and the rotation stopping only relies on small bearing, so the risk is higher, once there is certain overload, the lifting device will appear jamming, crawling and other faults. Secondly, the long rod oil cylinder is not convenient to disassemble, so it is difficult to maintain and replace in the later period. Finally, the existing rotating device is three-phase motor driving speed reducer and gear set rotating, and stopping completely relies on mechanical limiting, so the rotating precision is lower and the adjustable range is smaller. UTILITY MODEL CONTENTS
[0004] The utility model aims at providing a single crystal furnace furnace cylinder lifting rotary device to solve the problems in the prior art.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a single crystal furnace furnace cylinder lifting rotary device, including frame stand, the upper part of frame stand is fixed with long guide rail, two cast bases are slidably installed on the long guide rail, a short cantilever is rotatably installed between the two cast bases, and a three-claw assembly is installed on the short cantilever; the oil cylinder support seat is installed below the lower cast base, the oil cylinder support seat is connected with the short rod oil cylinder through trunnions, the hinged seat is installed at the bottom of the lower cast base, the hinged support seat is installed at the bottom of the hinged seat, and the short rod oil cylinder is connected with the hinged support seat.
[0006] Preferably, the oil cylinder support seat is installed with a support seat cover plate to prevent the trunnions from falling out.
[0007] Preferably, the short rod oil cylinder is connected with the hinged support seat through a push rod pin shaft, and a joint bearing is installed at the connection between the two ends of the push rod pin shaft and the hinged support seat.
[0008] Preferably, a thrust bearing is installed in each of the two cast bases, and the short cantilever rotates through the thrust bearing; the two cast bases are slidably connected with the long guide rail through a sliding block, and the cast base and the sliding block are fixed through screws.
[0009] Preferably, the frame stand column is provided with a swing rod limiting part at both ends of the long guide rail; and the upper casting base is provided with a photoelectric limiting sensor on one side.
[0010] Preferably, the upper casting base is provided with a combined speed reducer and a servo motor on the top; and the combined speed reducer is connected with the short cantilever through a flange coupling.
[0011] Preferably, the three-claw assembly comprises a cylinder, a three-claw cover and a hook; and the hook is driven to open and close by the cylinder.
[0012] Compared with the prior art, the utility model has the beneficial effects that:
[0013] 1. A guide rail mounting surface is added to the stand column, a long guide rail is added, the lower end original long piston rod oil cylinder is changed into a short piston rod oil cylinder, the short piston rod oil cylinder is connected with the upper support seat of the stand column through an ear shaft, has a certain front and back adjustment angle, and can increase the adjustment range. BRIEF DESCRIPTION OF DRAWINGS
[0014] The accompanying drawings are included to provide a further understanding of the utility model, constitute a part of the specification, are used to explain the utility model together with embodiments of the utility model, and do not constitute the limitation to the utility model.
[0015] Figure 1 It is the front view of the utility model;
[0016] Figure 2 It is the side view of the utility model;
[0017] Figure 3 It is the structure schematic view of the lower casting base of the utility model;
[0018] Figure 4 It is the structure schematic view of the upper casting base of the utility model.
[0019] In the figure: 1, frame column; 2, short rod oil cylinder; 3, oil cylinder support seat; 4, support seat cover plate; 5, joint bearing; 6, push rod pin; 7, thrust bearing; 8, three claw assembly; 9, photoelectric limit sensor; 10, flange coupling; 11, combined speed reducer; 12, long guide rail; 13, swing rod limit; 14, servo motor; 15, short cantilever; 16, sliding block; 17, air cylinder; 18, three claw shield; 19, hook 20, hinged seat; 21, hinged support seat; 22, casting seat. DETAILED DESCRIPTION
[0020] To make the purpose, technical scheme and advantages of the utility model embodiment clearer, the technical scheme in the utility model embodiment will be clearly and completely described below in combination with the drawings in the utility model embodiment. Obviously, the described embodiment is part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model.
[0021] Please refer to Figures 1-4 In the utility model embodiment, a single crystal furnace cylinder lifting and rotating device comprises a frame column 1, the upper part of the frame column 1 is fixed with a long guide rail 12, two casting seats 22 are slidingly installed on the long guide rail 12, a short cantilever 15 is rotatably installed between the two casting seats 22, and the short cantilever 15 is installed with a three claw assembly 8; the three claw assembly 8 comprises an air cylinder 17, a three claw shield 18 and a hook 19, and the hook 19 is driven to open and close by the air cylinder 17.
[0022] The oil cylinder support seat 3 is installed below the lower casting seat 22 of the frame column 1, the oil cylinder support seat 3 is connected with a short rod oil cylinder 2 through trunnions, the oil cylinder support seat 3 is installed with a support seat cover plate 4 for preventing the trunnions from falling out, the bottom end of the lower casting seat 22 is installed with a hinged seat, the bottom end of the hinged seat is installed with a hinged support seat 21, and the short rod oil cylinder 2 is connected with the hinged support seat 21.
[0023] The short rod oil cylinder 2 is connected with the hinged support seat 21 through a push rod pin 6, and the push rod pin 6 is installed with a joint bearing 5 at the connection between the two ends and the hinged support seat 21.
[0024] The two casting seats 22 are each installed with a thrust bearing 7, and the short cantilever 15 rotates through the thrust bearing 7; the two casting seats 22 are slidingly connected with the long guide rail 12 through sliding blocks 16, and the casting seats 22 and the sliding blocks 16 are fixed through screws.
[0025] The rack post 1 is provided with a swing rod limiting part 13 at both ends of the long guide rail 12; the upper casting base 22 is provided with a photoelectric limiting sensor 9 on one side; the upper casting base 22 is provided with a combined speed reducer 11 and a servo motor 14 on the top, and the combined speed reducer 11 is connected with a short cantilever 15 through a flange coupling 10.
[0026] A guide rail mounting surface is added to the post 1, a long guide rail 12 is added, the original long rod oil cylinder at the lower end is changed into a short rod oil cylinder 2, the short rod oil cylinder 2 is connected with the post upper support base 3 through an ear shaft, is fixed by using a support base cover plate 4 to prevent the ear shaft from falling out, has a certain front and back adjustment angle, and can increase the adjustment range. Joint bearings 5 are used to connect the two ends with hinged support bases 21, once the upper furnace barrel is stuck, the hinged base 20 and the hinged support base 21 can be timely disconnected to avoid risks. The upper end is changed into a short cantilever 15 and an upper and lower casting base 22 structure, a thrust bearing 7 is placed in the casting base, the short cantilever 15 is placed on the thrust bearing 7 to rotate, the two casting bases 22 are connected to the guide rail 12 through screws and a sliding block 16, the sliding block 16 moves on the guide rail 12, and the problems of long rod oil cylinder support and guide are solved. The guide rail sliding block structure has lower required machining precision, greater lateral bearing force and more stable operation compared with the original piston rod support. Meanwhile, the short cantilever is combined with the upper speed reducer 11 and the servo motor 14 through a flange coupling 10, has higher matching precision, and the operation precision can be as low as within 0.1°, double limiting is applied to the furnace barrel rotation, and the degree of freedom is higher. When the furnace barrel is grabbed, the three-jaw assembly 8 is rotated to the concentric position with the furnace barrel, then the short rod oil cylinder 2 is lowered, and when it reaches the lower limit, the three cylinders 17 are simultaneously retracted, the hook 19 is rotated and opened, then the cylinders 17 are opened, the hook is closed, the furnace barrel hanger is grabbed, the short rod oil cylinder 2 is raised to push the furnace barrel upward, and when it reaches the upper limit, the servo motor is started to drive the short cantilever and the three-jaw assembly to rotate to the set position.
[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacements to some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.
Claims
1. A single crystal furnace shaft lifting and rotating device, comprising a machine stand column (1), characterized in that: The upper part of the frame column (1) is fixed with a long guide rail (12), two casting bases (22) are slidingly installed on the long guide rail (12), a short cantilever (15) is rotatably installed between the two casting bases (22), and a three-claw assembly (8) is installed on the short cantilever (15). The oil cylinder support seat (3) is connected with the short rod oil cylinder (2) through trunnions, and the bottom end of the lower casting base (22) is installed with a hinged seat, the bottom end of the hinged seat is installed with a hinged support seat (21), and the short rod oil cylinder (2) is connected with the hinged support seat (21).
2. A single crystal furnace shaft lifting and rotating device according to claim 1, characterized in that: The oil cylinder support seat (3) is installed with a support seat cover plate (4) for preventing the trunnions from falling out.
3. The single crystal furnace shaft lifting and rotating device according to claim 1, characterized in that: The short rod oil cylinder (2) is connected with the hinged support seat (21) through a push rod pin shaft (6), and the push rod pin shaft (6) is installed with a joint bearing (5) at both ends.
4. The single crystal furnace shaft lifting and rotating device according to claim 1, characterized in that: Two pusher bearings (7) are installed in the two casting bases (22), and the short cantilever (15) rotates through the pusher bearings (7); the two casting bases (22) are slidingly connected with the long guide rail (12) through sliding blocks (16), and the casting bases (22) and the sliding blocks (16) are fixed through screws.
5. A single crystal furnace shaft lifting and rotating device according to claim 1, characterized in that: The frame column (1) is installed with a swing rod limiting part (13) at both ends of the long guide rail (12); and a photoelectric limiting sensor (9) is installed on one side of the upper casting base (22).
6. A single crystal furnace shaft lifting and rotating device according to claim 1, characterized in that: A combined speed reducer (11) and a servo motor (14) are installed on the top of the upper casting base (22), and the combined speed reducer (11) is connected with the short cantilever (15) through a flange coupling (10).
7. A single crystal furnace shaft lifting and rotating device according to claim 1, characterized in that: The three-claw assembly (8) comprises a gas cylinder (17), a three-claw cover (18) and a hook (19), and the hook (19) is driven to open and close by the gas cylinder (17).