Maintenance platform for crane

Abstract

The utility model relates to the technical field of translation cranes, and discloses a maintenance platform for a crane, which is arranged on the outer side of the translation crane, two sides of the translation crane are fixedly connected with fixed beams, the upper ends of the fixed beams are fixedly connected with toothed rails, and two sides of the translation crane are fixedly connected with guide grooves. According to the translation type crane maintenance platform, the motor is started to drive the worm to rotate, the gear rotates along with the worm, so that the frame is driven to move along the fixed beam and the guide groove until a proper maintenance position is reached, the pulley moves along the guide groove, the moving stability of the maintenance platform is improved, and the maintenance platform can move flexibly; the movable overhauling platform can be stopped in the middle of the translation crane when not being overhauled, the sight of workers is not blocked easily when hoisting operation is carried out, the operation difficulty is reduced, the worm and worm wheel driving mode has the self-locking characteristic, the overhauling platform cannot slide due to external force factors such as strong wind, and safety is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of translation cranes, and particularly relates to an overhaul platform for a crane. Background Art

[0002] In the fields of industrial production and logistics, as an important lifting equipment, the translation crane is widely used in various occasions. With the increase in the use frequency and the extension of the operation time of the translation crane, it becomes crucial to carry out regular maintenance and overhaul on it. The traditional overhaul method for the translation crane usually uses a temporarily erected scaffolding or a large fixed overhaul platform. Erecting a temporary scaffolding is time-consuming and laborious and has low safety. The large fixed overhaul platform occupies a large space and is likely to block the sight of the staff during the lifting operation of the crane, increasing the operation difficulty. Therefore, an overhaul platform for a crane is proposed.

[0003] Chinese Utility Model Patent Publication No.: CN 211733631 U, discloses: a marine monorail translation crane. In this marine monorail translation crane, by arranging a traveling mechanism in the middle of the boom, it can lift the items outside any side of the ship's hull and directly translate and lift the items into the cabin, saving other transfer equipment and being convenient to use; only one set of lifting mechanism is provided, which not only saves costs but also reduces the weight; the traveling mechanism adopts a gear-rack meshing drive and has a self-locking and positioning function; the marine lifting motor with a brake locking function is used to further ensure that the cantilever will not slip, and the work is more reliable and can better adapt to the working environment where the ship sways on the water surface. However, the overhaul platform of this marine monorail translation crane cannot move, and its flexibility in use is low, reducing the maintenance efficiency. Summary of the Invention

[0004] The technical problem to be solved by the utility model is to provide an overhaul platform for a crane, which can effectively solve the problems in the prior art.

[0005] The technical solution adopted by the utility model is: an overhaul platform for a crane is arranged outside the translation crane. Fixed beams are fixedly connected to both sides of the translation crane. A toothed rail is fixedly connected to the upper end of the fixed beam. Guide grooves are fixedly connected to both sides of the translation crane. Limit blocks are fixedly connected to both sides of the translation crane. A moving component is arranged outside the translation crane. A chassis is fixedly connected to the lower end of the moving component. Railings and a bottom plate are fixedly connected to the upper end of the chassis.

[0006] The moving component includes a frame, a storage board, pulleys, a fixing bracket, a shaft seat, a worm, a motor, a worm gear and a gear. A storage board is fixedly connected to the center of the frame. Pulleys are rotatably connected to the inner side of the frame. A fixing bracket is fixedly connected to the outer side of the frame. A shaft seat is fixedly connected to the outer side of the fixing bracket. A worm is rotatably connected to the center of the shaft seat. A motor is fixedly connected to the rear end of the shaft seat. A worm gear is arranged on the outer side of the fixing bracket. A gear is fixedly connected to the inner side of the worm gear.

[0007] Preferably, the limiting block is fixedly connected to the front and rear ends of the fixing beam and the guiding groove, and the guiding groove is made of I-beam.

[0008] Through the above technical solution, the limiting block is provided to limit the moving component and prevent the railing from colliding with the hook of the gantry crane.

[0009] Preferably, there are two sets of symmetrically identical pulleys, fixing brackets, shaft seats, worms, motors, worm gears and gears.

[0010] Through the above technical solution, the moving component is provided to control the horizontal movement of the maintenance platform.

[0011] Preferably, the worm is meshed with the worm gear, and the worm gear and the gear are rotatably connected to the fixing bracket.

[0012] Through the above technical solution, when maintenance and repair of the gantry crane are required, the staff steps onto the bottom plate of the maintenance platform, starts the motor to drive the worm to rotate, the worm drives the meshed worm gear to rotate, and drives the gear to rotate.

[0013] Preferably, the gear is meshed with the toothed rail, and the guiding groove is slidably connected to the pulley.

[0014] Through the above technical solution, the gear is meshed with the toothed rail, so as to drive the frame to move along the fixing beam and the guiding groove until reaching an appropriate maintenance position. The pulley moves along the guiding groove, improving the stability of the movement of the maintenance platform. The maintenance platform can move flexibly, facilitating maintenance. Compared with a maintenance platform with a longer width, the movable maintenance platform can be parked in the middle of the gantry crane when not in use for maintenance, and is not likely to block the line of sight of the staff during lifting operations, reducing the operation difficulty. At the same time, it avoids the collision between the maintenance platform and the lifted goods, resulting in damage to the goods. The driving mode of the worm and the worm gear has a self-locking characteristic, and the maintenance platform will not slide due to external forces such as strong winds, which is relatively safe.

[0015] Preferably, the bottom plate is made of galvanized diamond plate.

[0016] Through the above technical solution, the bottom plate is made of galvanized diamond plate, which has good anti-slip effect.

[0017] Preferably, the distance between the railing and the frame is ≥ 60 cm, and the height of the railing is ≥ 120 cm.

[0018] Through the above technical solution, the distance between the railing and the frame is relatively large, providing a relatively large operating space, which is convenient for the staff to move on the left and right sides of the gantry crane. The railing is relatively high, ensuring strong safety. A storage board is provided, on which tools can be placed during maintenance, improving the convenience of maintenance.

[0019] Compared with the prior art, the present utility model provides an overhaul platform for a crane, having the following beneficial effects:

[0020] 1. For this gantry crane overhaul platform, when maintenance and repair of the gantry crane are required, the staff step onto the bottom plate of the overhaul platform, start the motor to drive the worm to rotate. The worm drives the meshing-connected worm wheel to rotate, driving the gear to rotate. The gear is meshed with the tooth rail, thereby driving the frame to move along the fixed beam and the guide groove until reaching an appropriate overhaul position. The pulley moves along the guide groove, improving the stability of the movement of the overhaul platform. The overhaul platform can move flexibly, facilitating overhaul. Compared with an overhaul platform with a longer width, when the movable overhaul platform is not in use, it can be parked in the middle of the gantry crane. During lifting and hoisting operations, it is not easy to block the line of sight of the staff, reducing the operation difficulty. At the same time, it avoids the collision between the overhaul platform and the hoisted goods, resulting in damage to the goods. The driving mode of the worm and the worm wheel has a self-locking characteristic, and the overhaul platform will not slide due to external forces such as strong winds, being relatively safe.

[0021] 2. For this gantry crane overhaul platform, the distance between the railing and the frame is relatively large, providing a relatively large operating space. The staff can walk on the bottom plate and bend down to pass through the left and right sides of the gantry crane for overhaul. The railing is relatively high, ensuring strong safety. A storage board is provided, on which tools can be placed during maintenance, improving the convenience of maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Schematic diagram of the three-dimensional structure of the present utility model Figure 1 ;

[0023] Figure 2 Schematic diagram of the three-dimensional structure of the present utility model Figure 2 ;

[0024] Figure 3 Schematic diagram of the enlarged structure of the tooth rail, guide groove and moving component of the present utility model;

[0025] Figure 4 Schematic diagram of the enlarged structure of the tooth rail and guide groove of the present utility model;

[0026] Figure 5 Schematic diagram of the enlarged structure of the moving component of the present utility model Figure 1 ;

[0027] Figure 6 This is an enlarged structural diagram of the mobile component of the utility model Figure 2 .

[0028] Among them: 1. Translation crane; 2. Fixed beam; 3. Rack rail; 4. Guide groove; 5. Limit block; 6. Moving assembly; 601. Frame; 602. Storage board; 603. Pulley; 604. Fixed frame; 605. Axle seat; 606. Worm; 607. Motor; 608. Worm wheel; 609. Gear; 7. Base frame; 8. Railing; 9. Bottom plate. DETAILED DESCRIPTION

[0029] 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.

[0030] Embodiment 1: Figures 1-6 As shown, the utility model provides a maintenance platform for a crane, which is arranged on the outside of a translation crane 1, fixed beams 2 are fixedly connected on both sides of the translation crane 1, and a rack 3 is fixedly connected on the upper end of the fixed beam 2, guide grooves 4 are fixedly connected on both sides of the translation crane 1, and limited blocks 5 are fixedly connected on both sides of the translation crane 1. A moving component 6 is arranged on the outside of the translation crane 1, and a bottom frame 7 is fixedly connected at the lower end of the moving component 6, and a railing 8 and a bottom plate 9 are fixedly connected at the upper end of the bottom frame 7;

[0031] The moving assembly 6 includes a frame 601, a storage plate 602, a pulley 603, a fixed frame 604, a shaft seat 605, a worm 606, a motor 607, a worm wheel 608 and a gear 609. The storage plate 602 is fixedly connected to the center of the frame 601, the pulley 603 is rotatably connected to the inner side of the frame 601, the fixed frame 604 is fixedly connected to the outer side of the frame 601, the shaft seat 605 is fixedly connected to the outer side of the fixed frame 604, the worm 606 is rotatably connected to the center of the shaft seat 605, the motor 607 is fixedly connected to the rear end of the shaft seat 605, a worm wheel 608 is arranged on the outer side of the fixed frame 604, and the gear 609 is fixedly connected to the inner side of the worm wheel 608.

[0032] Specifically, the limit block 5 is fixedly connected to the front and rear ends of the fixed beam 2 and the guide groove 4, and the guide groove 4 is made of I-beam. The advantage is that the limit block 5 is set to limit the position of the moving component 6 to prevent the railing 8 from colliding with the hook of the translation crane 1.

[0033] Specifically, there are two sets of symmetrically identical pulley 603, fixed bracket 604, shaft seat 605, worm 606, motor 607, worm gear 608 and gear 609. The advantage is that the moving assembly 6 is provided to control the horizontal movement of the maintenance platform.

[0034] Embodiment 2: As Figures 2-6 shown, as an improvement over the previous embodiment.

[0035] Specifically, the worm 606 is meshed with the worm gear 608, and the worm gear 608 and the gear 609 are rotatably connected to the fixed bracket 604. The advantage is that when maintenance and repair of the gantry crane 1 need to be carried out, the staff steps onto the bottom plate 9 of the maintenance platform, starts the motor 607 to drive the worm 606 to rotate, and the worm 606 drives the meshed worm gear 608 to rotate, driving the gear 609 to rotate.

[0036] Specifically, the gear 609 is meshed with the tooth rail 3, and the guide groove 4 is slidably connected to the pulley 603. The advantage is that the gear 609 is meshed with the tooth rail 3, thereby driving the frame 601 to move along the fixed beam 2 and the guide groove 4 until it reaches an appropriate maintenance position. The pulley 603 moves along the guide groove 4, improving the stability of the movement of the maintenance platform. The maintenance platform can move flexibly, facilitating maintenance. Compared with a maintenance platform with a longer width, the movable maintenance platform can be parked in the middle of the gantry crane 1 when not in use for maintenance, and is not likely to block the line of sight of the staff during lifting and hoisting operations, reducing the operation difficulty. At the same time, it avoids the collision between the maintenance platform and the hoisted goods, resulting in damage to the goods. The driving mode of the worm 606 and the worm gear 608 has a self-locking characteristic, and the maintenance platform will not slide due to external forces such as strong winds, which is relatively safe.

[0037] Specifically, the bottom plate 9 is made of galvanized checkered steel plate. The advantage is that the bottom plate 9 made of galvanized checkered steel plate has good anti-slip effect.

[0038] Specifically, the distance between the railing 8 and the frame 601 is ≥60 cm, and the height of the railing 8 is ≥120 cm. The advantage is that the distance between the railing 8 and the frame 601 is relatively large, providing a large operating space, facilitating the movement of the staff on the left and right sides of the gantry crane 1. The height of the railing 8 is relatively high, with strong safety. The storage board 602 is provided, and tools can be placed on the storage board 602 during maintenance, improving the convenience of maintenance.

[0039] Working principle: When in use, the staff member steps onto the bottom plate 9 of the maintenance platform, starts the motor 607 to drive the worm 606 to rotate. The worm 606 drives the engaged and connected worm wheel 608 to rotate, which drives the gear 609 to rotate. The gear 609 is in meshing connection with the tooth rail 3, so as to drive the frame 601 to move along the fixed beam 2 and the guide groove 4 until reaching an appropriate maintenance position. The pulley 603 moves along the guide groove 4 to improve the stability of the movement of the maintenance platform. The maintenance platform can move flexibly, facilitating maintenance. Compared with the maintenance platform with a longer width, the movable maintenance platform can be parked in the middle of the gantry crane 1 when not in maintenance. When carrying out lifting operations, it is not easy to block the sight of the staff, reducing the operation difficulty. At the same time, it avoids the collision between the maintenance platform and the lifted goods, resulting in damage to the goods. The driving mode of the worm 606 and the worm wheel 608 has a self-locking characteristic, and the maintenance platform will not slide due to external force factors such as strong wind, which is relatively safe. The distance between the railing 8 and the frame 601 is relatively large, providing a large operating space. The staff member walks on the bottom plate 9 and can bend down to pass through the left and right sides of the gantry crane 1 for maintenance. The height of the railing 8 is relatively high, with strong safety. The storage plate 602 is provided, and tools can be placed on the storage plate 602 during maintenance, improving the convenience of maintenance.

[0040] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An overhaul platform for a crane, which is arranged outside a translation crane (1), and is characterized in that: On both sides of the translation crane (1), there are fixedly connected fixed beams (2). At the upper end of the fixed beams (2), there are fixedly connected tooth rails (3). On both sides of the translation crane (1), there are fixedly connected guide grooves (4). On both sides of the translation crane (1), there are fixedly connected limit blocks (5). Outside the translation crane (1), there is a moving component (6). At the lower end of the moving component (6), there is fixedly connected a chassis (7). At the upper end of the chassis (7), there are fixedly connected a railing (8) and a bottom plate (9). The moving component (6) includes a frame (601), a storage plate (602), a pulley (603), a fixed frame (604), a shaft seat (605), a worm (606), a motor (607), a worm gear (608), and a gear (609). At the center of the frame (601), there is fixedly connected a storage plate (602). Inside the frame (601), there is a rotatably connected pulley (603). Outside the frame (601), there is fixedly connected a fixed frame (604). Outside the fixed frame (604), there is fixedly connected a shaft seat (605). At the center of the shaft seat (605), there is a rotatably connected worm (606). At the rear end of the shaft seat (605), there is fixedly connected a motor (607). Outside the fixed frame (604), there is a worm gear (608). Inside the worm gear (608), there is fixedly connected a gear (609).

2. The overhaul platform for a crane according to claim 1, wherein: The limit blocks (5) are fixedly connected to the front and rear ends of the fixed beams (2) and the guide grooves (4). The guide grooves (4) are made of I-beams.

3. The overhaul platform for a crane according to claim 1, characterized in that: There are two sets of the pulley (603), the fixed frame (604), the shaft seat (605), the worm (606), the motor (607), the worm gear (608), and the gear (609) that are symmetrically the same.

4. The overhaul platform for a crane according to claim 1, characterized in that: The worm (606) is meshed with the worm gear (608). The worm gear (608) and the gear (609) are rotatably connected to the fixed frame (604).

5. The overhaul platform for a crane according to claim 1, characterized in that: The gear (609) is meshed with the tooth rail (3). The guide groove (4) is slidably connected to the pulley (603).

6. The overhaul platform for a crane according to claim 1, characterized in that: The bottom plate (9) is made of galvanized diamond plate.

7. The overhaul platform for a crane according to claim 1, characterized in that: The distance between the railing (8) and the frame (601) is ≥ 60 cm, and the height of the railing (8) is ≥ 120 cm.

Images