Hoisting clamp for large gear machining

Abstract

The utility model relates to the technical field of large gear machining, in particular to a hoisting clamp for large gear machining. The device comprises a bottom plate, a fixing plate is connected above the bottom plate through a plurality of sliding rods, a lifting plate is arranged above the fixing plate, a connecting cover is connected between the fixing plate and the lifting plate, and a lifting ring is connected above the lifting plate; a driving structure is installed on the sliding rods, a plurality of L-shaped supporting plates are evenly arranged on the periphery of the bottom plate in the circumferential direction, and each L-shaped supporting plate is connected to the driving structure and the bottom plate through a connecting rod assembly; through the driving motor, the driving screw and the connecting rod assembly, the L-shaped supporting plate can be driven to move inwards or outwards through rotation of the motor, meanwhile, the weight can be shared by the connecting rods and the guide rails, and hoisting stability is guaranteed; the device is provided with the protective plate and the connecting cover, and the protective plate and the connecting cover can be used as connecting pieces and can protect internal parts respectively; the device is provided with a plurality of L-shaped supporting plates, so that the gears can be respectively supported from multiple angles, and the stability of the gears in the hoisting process is kept.

Description

Technical Field

[0001] The utility model relates to the technical field of large gear processing, in particular to a hoisting fixture for large gear processing. Background Art

[0002] Many large machines, such as ball mills and ore excavators, use a large number of large gears. When processing large gear parts, lifting equipment is needed to lift the gears to the gear grinder for fine processing. After fine processing, the large gears need to be clamped and placed in the quenching tank for cooling.

[0003] Today, during the lifting and unloading process of large gears, symmetrical lifting rings are mostly installed on the end faces of the gears and tied with lifting straps. The lifting straps are softly connected to the gears and are easily affected by external forces during the lifting process. The swing amplitude is large and the gears collide with adjacent gears, causing local deformation of the gears. At the same time, it is difficult to align the gears during the lifting process and they are prone to tilting, which increases the adjustment time and reduces production efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a reasonably designed lifting fixture for large gear processing in view of the defects and shortcomings of the prior art, which can solve the above-mentioned defects.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: it includes a base plate, a fixed plate is connected to the top of the base plate through a plurality of sliding rods, a lifting plate is provided above the fixed plate, a connecting cover is connected between the fixed plate and the lifting plate, and a lifting ring is connected above the lifting plate; a driving structure is installed on the plurality of sliding rods, a plurality of L-shaped support plates are evenly arranged along the circumference around the base plate, and each L-shaped support plate is connected to the driving structure and the base plate through a connecting rod assembly.

[0006] Preferably, the driving structure includes a driving screw rotatably installed between the base plate and the fixed plate, the driving screw is located on the inner side of a plurality of sliding rods, sliding blocks are slidably installed on the plurality of sliding rods, an internal thread is opened in the sliding block, and the sliding block is connected to the driving screw through a thread; a driving motor is installed on the fixed plate at a position located inside the connecting cover, and the driving shaft of the driving motor passes through the fixed plate and is connected to the driving screw.

[0007] Preferably, the connecting rod assembly includes a guide rail arranged on one side of the base plate, a telescopic slider is slidably installed in the guide rail, and one end of the telescopic slider is connected to the L-shaped support plate; a connecting rod 1 is connected between the sliding block and the L-shaped support plate, and the connecting rod 1 is rotatably connected to the sliding block and the L-shaped support plate; a connecting rod 2 is connected between the base plate and the connecting rod 1, one end of the connecting rod 2 is rotatably connected to the base plate, and the other end of the connecting rod 2 is rotatably connected to the middle part of the connecting rod 1.

[0008] Preferably, a plurality of arc-shaped protection plates are connected between the bottom plate and the fixing plate.

[0009] Preferably, a plurality of anti-slip pads are provided on the L-shaped support plate.

[0010] Preferably, the number of the L-shaped support plates is not less than three.

[0011] After adopting the above structure, the beneficial effects of the utility model are:

[0012] 1. This device uses a drive motor, a drive screw and a connecting rod assembly. The rotation of the motor can drive the L-shaped pallet to move inward or outward. At the same time, the connecting rod and the guide rail can share the weight to ensure the stability of the lifting.

[0013] 2. The device is provided with a protection plate and a connection cover, which can serve as a connection piece and protect the internal components respectively, thereby enhancing the safety of the device.

[0014] 3. This device is equipped with multiple L-shaped support plates, which can support the gears from multiple angles, thereby maintaining the stability of the gears during the lifting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the external structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0017] Figure 3 yes Figure 2 Enlarged view of part A in the middle;

[0018] Figure 4 It is a schematic diagram of the internal structure of the connecting cover in the utility model.

[0019] Description of reference numerals:

[0020] 1. Bottom plate; 2. Fixed plate; 3. Lifting plate; 4. Lifting ring; 5. Protective plate; 6. Driving screw; 7. Sliding rod; 8. Sliding block; 9. Connecting rod 1; 10. Connecting rod 2; 11. Guide rail; 12. Telescopic slider; 13. L-shaped support plate; 14. Anti-slip pad; 15. Driving motor; 16. Connecting cover. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-Figure 2 As shown, it includes a base plate 1, a fixed plate 2 is connected to the top of the base plate 1 through a plurality of sliding rods 7, a lifting plate 3 is provided above the fixed plate 2, a connecting cover 16 is connected between the fixed plate 2 and the lifting plate 3, and a lifting ring 4 is connected above the lifting plate 3; a driving structure is installed on the plurality of sliding rods 7, a plurality of L-shaped support plates 13 are evenly arranged along the circumference around the base plate 1, and each L-shaped support plate 13 is connected to the driving structure and the base plate 1 through a connecting rod assembly.

[0023] See also Figure 1-Figure 4 As shown, the driving structure includes a driving screw 6 rotatably installed between the bottom plate 1 and the fixed plate 2, the driving screw 6 is located inside a plurality of slide bars 7, a sliding block 8 is slidably installed on the plurality of slide bars 7, an internal thread is opened in the sliding block 8, and the sliding block 8 is connected to the driving screw 6 through a thread; a driving motor 15 is installed on the fixed plate 2 at a position inside the connecting cover 16, and a driving shaft of the driving motor 15 passes through the fixed plate 2 and is connected to the driving screw 6;

[0024] The connecting rod assembly includes a guide rail 11 arranged on one side of the base plate 1, and a telescopic slider 12 is slidably installed in the guide rail 11, and one end of the telescopic slider 12 is connected to the L-shaped support plate 13; a connecting rod 9 is connected between the sliding block 8 and the L-shaped support plate 13, and the connecting rod 9 is rotatably connected to the sliding block 8 and the L-shaped support plate 13; a connecting rod 2 10 is connected between the base plate 1 and the connecting rod 1 9, one end of the connecting rod 2 10 is rotatably connected to the base plate 1, and the other end of the connecting rod 2 10 is rotatably connected to the middle part of the connecting rod 1 9.

[0025] As an optimization scheme of the utility model, the driving screw 6 is driven to rotate by the driving motor 15, and then the sliding block 8 is driven to move up and down along the sliding rod 7 through the thread, so that one end of the connecting rod 9 can be driven to move up and down, and the connecting rod 2 10 is connected to the middle part of the connecting rod 19, and the two ends of the connecting rod 19 and the connection between the connecting rod 2 10 and the base plate 1 are always a right triangle. When the sliding block 8 rises, one end of the connecting rod 19 rises, and the other end of the connecting rod 19 drives the L-shaped support plate 13 and the telescopic slider 12 to move inward along the guide rail 11, and vice versa.

[0026] See also Figure 1-Figure 4 As shown, a plurality of arc-shaped protection plates 5 are connected between the bottom plate 1 and the fixing plate 2 .

[0027] As an optimization solution of the present invention, multiple protection plates 5 are provided to protect the threaded structure and prevent external collisions from affecting the internal structure.

[0028] See also Figure 1-Figure 4 As shown, a plurality of anti-skid pads 14 are provided on the L-shaped support plate 13, and the number of the L-shaped support plates 13 is not less than three.

[0029] As an optimization solution of the utility model, the friction is increased by the anti-slip pad 14, thereby increasing the stability of the gear during the lifting process. At the same time, the number of L-shaped support plates 13 is not less than three, so the gear can be lifted from multiple angles at the same time to prevent the gear from easily tipping over due to too few connections.

[0030] The use process of this utility model:

[0031] First, the device is powered on and the drive motor 15 is started to drive the sliding block 8 to move upward, and then the L-shaped support plate 13 is retracted inward. Then, the device is connected to the lifting device through the lifting ring 4, lifted and moved to the inner hole of the gear, and put down. Then, the drive motor 15 is started again and reversed to drive the L-shaped support plate 13 to be pushed outward so that the vertical part of the L-shaped support plate 13 is in close contact with the inner hole wall of the gear. The drive motor 15 can be stopped, and then the gear is lifted by the lifting equipment and placed at the designated location. The drive motor 15 is started again to drive the sliding block 8 to move upward, and the L-shaped support plate 13 is retracted, and the device can be taken out.

[0032] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation on the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the claims attached to the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the attached claims, or within the equivalent forms of such scope and boundaries.

Claims

1. A hoisting fixture for large gear processing, comprising a base plate (1), characterized in that: A fixed plate (2) is connected to the top of the bottom plate (1) via a plurality of sliding rods (7), a lifting plate (3) is provided above the fixed plate (2), a connecting cover (16) is connected between the fixed plate (2) and the lifting plate (3), and a lifting ring (4) is connected above the lifting plate (3); a driving structure is installed on the plurality of sliding rods (7), a plurality of L-shaped supporting plates (13) are evenly provided around the bottom plate (1) along the circumference, and each L-shaped supporting plate (13) is connected to the driving structure and the bottom plate (1) via a connecting rod assembly.

2. A hoisting fixture for large gear processing according to claim 1, characterized in that: The driving structure comprises a driving screw (6) rotatably mounted between a base plate (1) and a fixed plate (2), the driving screw (6) being located inside a plurality of sliding rods (7), a sliding block (8) being slidably mounted on the plurality of sliding rods (7), an internal thread being formed inside the sliding block (8), and the sliding block (8) being connected to the driving screw (6) through a thread; a driving motor (15) is mounted on the fixed plate (2) at a position inside a connecting cover (16), and a driving shaft of the driving motor (15) passes through the fixed plate (2) and is connected to the driving screw (6).

3. A hoisting fixture for large gear processing according to claim 2, characterized in that: The connecting rod assembly comprises a guide rail (11) arranged on one side of the base plate (1), a telescopic slider (12) being slidably installed in the guide rail (11), one end of the telescopic slider (12) being connected to an L-shaped support plate (13); a connecting rod 1 (9) is connected between the sliding block (8) and the L-shaped support plate (13), and the connecting rod 1 (9) is rotatably connected to the sliding block (8) and the L-shaped support plate (13); a connecting rod 2 (10) is connected between the base plate (1) and the connecting rod 1 (9), one end of the connecting rod 2 (10) is rotatably connected to the base plate (1), and the other end of the connecting rod 2 (10) is rotatably connected to the middle part of the connecting rod 1 (9).

4. The large gear processing hoisting fixture according to claim 3 is characterized in that: A plurality of arc-shaped protection plates (5) are connected between the bottom plate (1) and the fixing plate (2).

5. The large gear processing hoisting fixture according to claim 4 is characterized in that: The L-shaped support plate (13) is provided with a plurality of anti-slip pads (14).

6. A hoisting fixture for large gear processing according to claim 5, characterized in that: The number of the L-shaped support plates (13) is not less than three.

Images