Floating wheel mechanism of crane walking beam

Abstract

The utility model relates to the technical field of cranes, and provides a floating wheel mechanism of a crane walking beam, which comprises a walking beam, a supporting plate is arranged at the bottom end of the walking beam, a mounting frame is arranged on the outer side of the supporting plate, a supporting frame is arranged in the middle of the inner bottom wall of the mounting frame, and a driving turbine is arranged at the bottom end of the supporting plate. Lifting assemblies for supporting the driving turbine are arranged on the two sides of the inner bottom wall of the supporting frame, fixing blocks are arranged on the tops of the two sides of the driving turbine, the tops of the lifting assemblies are fixedly connected with the fixing blocks, and a driving assembly for controlling the rotating direction of the lifting assemblies is transversely arranged at the bottom of the supporting frame. The lifting assembly is driven by the driving assembly to rotate, the lifting assembly drives the driving turbine to move upwards and conduct gear meshing transmission with the bottom of the supporting plate, and therefore the mounting frame and the supporting plate can move relatively, and the problem that in the prior art, a balance beam is inconvenient to move is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, and in particular to a floating wheel mechanism of a crane walking beam. Background Art

[0002] Bridge crane, commonly known as "bridge crane" and "crane" in factories, is a lifting equipment that is horizontally erected above workshops, warehouses and material yards to lift materials. The two ends of the bridge are directly supported on the elevated track through running devices. The bridge type crane consists of a bridge, a lifting trolley, a trolley running mechanism and electrical equipment; its two ends are located on tall concrete columns or metal supports, and its shape is like a bridge; its bridge is a combination of a box-section main beam and end beams, and runs longitudinally along the tracks laid on the elevated tracks on both sides, so that it can make full use of the space under the bridge to lift materials without being hindered by ground equipment.

[0003] After searching, a walking balance beam structure of a crane disclosed in publication number CN211813062U includes a main beam, a large balance beam, a plurality of small balance beams and a connecting beam fixedly connecting the large balance beam and the small balance beam, the end of the main beam is fixedly provided with a rotating shaft, the bottom of the rotating shaft is fixedly connected to the upper end of the main beam, the bottom of the main beam is fixedly provided with a circular fixed mounting frame, a plurality of mounting openings are evenly provided on the fixed mounting frame, the mounting openings are axially connected to the first rotating shaft, one end of the connecting beam is fixedly connected to the first rotating shaft, the upper ends of the small balance beams are fixedly provided with connecting parts, the other ends of the connecting beams are fixedly connected to the connecting parts, a plurality of driving mechanisms are also provided on the fixed mounting frame, the bottoms of the small balance beams are fixedly provided with walking wheel groups, and the bottoms of the large balance beams are also fixedly provided with a stabilizing device, which can improve the stability of the chassis and lift heavier goods.

[0004] However, the above-mentioned balance beam structure still has the following problems: the purpose of overall movement is achieved by pushing the balance beam with external force to drive the universal wheel to roll, which is inconvenient during the movement, and the balance beam structure has no parts that can be immediately stopped during the movement, which makes it inconvenient during the lifting process. Utility Model Content

[0005] The utility model provides a floating wheel mechanism for a crane walking beam, which solves the problem in the prior art that the balance beam is inconvenient to move and inconvenient to stop immediately during the moving process.

[0006] The technical solution of the utility model is as follows: a floating wheel mechanism of a crane walking beam, comprising a walking beam, a support plate is provided at the bottom end of the walking beam, a mounting frame is provided at the outer side of the support plate, a support frame is provided at the middle part of the inner bottom wall of the mounting frame, a driving turbine is provided at the bottom end of the support plate, lifting components for supporting the driving turbine are provided on both sides of the inner bottom wall of the support frame, fixed blocks are provided at the tops of both sides of the driving turbine, the tops of the lifting components are fixedly connected to the fixed blocks, a driving component for controlling the rotation direction of the lifting component is laterally provided at the bottom of the support frame, buffer components for the driving turbine to descend to the bottom are provided at the four corners of the inner bottom wall of the support frame, and brake components for controlling the driving turbine to stop moving are provided on the left and right inner walls of the mounting frame.

[0007] Preferably, the lifting assembly includes a rotating seat rotatably connected to both sides of the inner bottom wall of the support frame, the top of the rotating seat is fixedly connected to a threaded tube, the bottom end of the fixed block is fixedly connected to a threaded rod, and the bottom of the threaded rod is threadedly connected to the inside of the threaded tube.

[0008] Preferably, the driving assembly includes a driving frame fixedly connected transversely to the bottom of the supporting frame, the driving frame is laterally rotatably connected to a worm gear inside, a driving motor is fixedly connected to the right side of the supporting frame, the output shaft of the driving motor is fixedly connected to the worm gear, a worm wheel is fixedly connected to the bottom of the threaded tube, and the rear side of the worm wheel passes through the driving frame and is meshingly connected to the worm gear.

[0009] Preferably, the buffer assembly includes a buffer sleeve fixedly connected to the four corners of the inner bottom wall of the support frame, the inner bottom wall of the buffer sleeve is fixedly connected with a buffer spring, the top end of the buffer spring is fixedly connected to a limiting plate, and the top end of the limiting plate is fixedly connected to a buffer rod.

[0010] Preferably, the brake assembly includes a fixing frame fixedly connected to the left and right inner walls of the mounting frame, the inner bottom wall of the fixing frame is fixedly connected with a hydraulic rod, the top end of the hydraulic rod is fixedly connected with a movable plate, one side of the top end of the movable plate is fixedly connected with a support rod, and the top end of the support rod passes through the fixing frame and is fixedly connected with a friction plate.

[0011] Preferably, guide wheels are fixedly connected to both sides of the inner top wall of the mounting frame, guide grooves are opened on both sides of the top of the support plate, and the bottoms of the guide wheels are rollingly connected to the inside of the guide grooves.

[0012] Preferably, both sides of the support plate are provided with limiting grooves, the tops of the left and right inner walls of the mounting frame are fixedly connected with limiting blocks, and the limiting blocks are slidably connected to the inside of the limiting grooves.

[0013] Preferably, the top of the driving wheel is meshingly connected with the middle of the bottom end of the supporting plate.

[0014] The beneficial effects of the utility model are:

[0015] 1. In the utility model, the driving assembly drives the lifting assembly to rotate, so that the lifting assembly drives the driving turbine to move upward and perform gear meshing transmission with the bottom of the support plate, so that the mounting frame and the support plate can move relative to each other, solving the problem of the inconvenience of moving the balance beam in the prior art;

[0016] 2. In the utility model, the bottom of the guide wheel rolls inside the guide groove, which can provide stable support for the mounting frame, so that the mounting frame can slide stably on the outside of the walking beam, and by controlling the brake stop component to start, the bottom of the support plate can be continuously squeezed, and the mounting frame can be stopped by the friction force, which solves the problem in the prior art that the balance beam is inconvenient to stop immediately during movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0018] Figure 1 This is a structural schematic diagram of a floating wheel mechanism of a crane walking beam proposed by the utility model;

[0019] Figure 2 It is a schematic diagram of the internal structure proposed by the utility model;

[0020] Figure 3 This is a schematic diagram of the lifting assembly structure proposed by the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the drive assembly proposed by the utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the buffer component proposed by the utility model;

[0023] Figure 6 This is a schematic diagram of the brake assembly structure proposed by the utility model;

[0024] In the figure: 1. walking beam; 2. supporting plate; 3. mounting frame; 4. guide wheel; 5. supporting frame; 6. lifting assembly; 61. rotating seat; 62. threaded pipe; 63. threaded rod; 7. driving assembly; 71. driving frame; 72. worm; 73. driving motor; 74. worm gear; 8. buffer assembly; 81. buffer sleeve; 82. buffer spring; 83. limit plate; 84. buffer rod; 9. brake assembly; 91. fixed frame; 92. hydraulic rod; 93. movable plate; 94. supporting rod; 95. friction plate; 10. driving turbine; 11. guide groove; 12. fixing block; 13. limit block; 14. limit groove. DETAILED DESCRIPTION

[0025] The following will be combined with 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 of 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.

[0026] See also Figure 1 and Figure 2 The utility model provides a technical solution of a floating wheel mechanism of a crane walking beam: a floating wheel mechanism of a crane walking beam, comprising a walking beam 1, a supporting plate 2 is arranged at the bottom end of the walking beam 1, a mounting frame 3 is arranged on the outer side of the supporting plate 2, guide wheels 4 are fixedly connected to both sides of the inner top wall of the mounting frame 3, guide grooves 11 are arranged on both sides of the top of the supporting plate 2, the bottoms of the guide wheels 4 are rollingly connected to the inside of the guide grooves 11, a supporting frame 5 is arranged at the middle of the inner bottom wall of the mounting frame 3, limiting grooves 14 are arranged on both sides of the supporting plate 2, and limiting blocks 13 are fixedly connected to the tops of the left and right inner walls of the mounting frame 3, and the limiting blocks 13 are respectively slidably connected to the limiting grooves 1 4, a driving turbine 10 is arranged at the bottom end of the support plate 2, and the top of the driving turbine 10 is meshed and connected with the middle part of the bottom end of the support plate 2, and lifting components 6 for supporting the driving turbine 10 are arranged on both sides of the inner bottom wall of the support frame 5, and fixed blocks 12 are arranged on the tops of both sides of the driving turbine 10, and the tops of the lifting components 6 are fixedly connected with the fixed blocks 12, and a driving component 7 for controlling the rotation direction of the lifting component 6 is arranged laterally at the bottom of the support frame 5, and buffer components 8 for descending the driving turbine 10 to the bottom are arranged at the four corners of the inner bottom wall of the support frame 5, and brake components 9 for controlling the driving turbine 10 to stop moving are arranged on the left and right inner walls of the mounting frame 3.

[0027] See also Figure 3 The lifting assembly 6 includes a rotating seat 61 rotatably connected to both sides of the inner bottom wall of the support frame 5, the top of the rotating seat 61 is fixedly connected to a threaded tube 62, and the bottom end of the fixed block 12 is fixedly connected to a threaded rod 63, and the bottom of the threaded rod 63 is threadedly connected to the inside of the threaded tube 62. By rotating the threaded tube 62 and the threaded rod 63 for threaded transmission, the threaded rod 63 can be driven to move upward, thereby moving the driving turbine 10 upward, which is convenient for controlling the driving turbine 10 to float.

[0028] See also Figure 4The driving assembly 7 includes a driving frame 71 which is laterally fixedly connected to the bottom of the supporting frame 5. A worm 72 is connected to the driving frame 71 for laterally rotating inside. A driving motor 73 is fixedly connected to the right side of the supporting frame 5. The output shaft of the driving motor 73 is fixedly connected to the worm 72. A worm wheel 74 is fixedly connected to the bottom of the threaded tube 62. The rear side of the worm wheel 74 passes through the driving frame 71 and is meshed with the worm 72. The driving motor 73 is started and driven to rotate, so that the worm 72 and the worm wheel 74 are meshed and driven, which can drive the threaded tube 62 to rotate, so that the threaded tube 62 and the threaded rod 63 inside it are threadedly driven. The driving turbine 10 is driven to float up and down by controlling the forward and reverse rotation of the driving motor 73.

[0029] See also Figure 5 The buffer assembly 8 includes a buffer sleeve 81 fixedly connected to the four corners of the inner bottom wall of the support frame 5, the inner bottom wall of the buffer sleeve 81 is fixedly connected with a buffer spring 82, the top end of the buffer spring 82 is fixedly connected with a limiting plate 83, and the top end of the limiting plate 83 is fixedly connected with a buffer rod 84. Through the joint action of the buffer spring 82 and the buffer rod 84, a buffering effect can be played on the driving turbine 10 during its falling process.

[0030] See also Figure 6 The brake stop assembly 9 includes a fixing frame 91 fixedly connected to the left and right inner walls of the mounting frame 3, the inner bottom wall of the fixing frame 91 is fixedly connected with a hydraulic rod 92, the top of the hydraulic rod 92 is fixedly connected with a movable plate 93, one side of the top of the movable plate 93 is fixedly connected with a support rod 94, the top of the support rod 94 passes through the fixing frame 91 and is fixedly connected with a friction plate 95, by controlling the extension of the hydraulic rod 92 to drive the movable plate 93 to slide upward, the friction plate 95 can be driven to contact the bottom of the support plate 2, and the entire device is stopped by the action of friction.

[0031] The working principle and use process of the utility model are as follows: when controlling the movement of the crane balance beam, the control driving motor 73 is started to drive the worm 72 to rotate, so that the worm 72 and the worm wheel 74 are meshed and driven, which can drive the threaded tube 62 to rotate, so that the threaded tube 62 and the threaded rod 63 inside it are threadedly driven, and the driving turbine 10 is driven to move upward, so that the top of the driving turbine 10 is meshed and connected with the bottom of the support plate 2, and by controlling the driving turbine 10 to start, the guide wheel 4 can be driven to roll inside the guide groove 11, so that the whole device can be moved on the outside of the walking beam 1, and the movable plate 93 can be driven to slide upward by controlling the extension of the hydraulic rod 92, so that the friction plate 95 can be driven to contact with the bottom of the support plate 2, and the whole device can be stopped by the action of friction, and then the driving motor 73 is controlled to reverse, drive the threaded rod 63 to move downward, and the driving turbine 10 can be put down, so that the driving turbine 10 is in contact with the buffer rod 84, and the buffer spring 82 can play a buffering role on the driving turbine 10.

[0032] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A floating wheel mechanism for a crane walking beam, comprising a walking beam (1), characterized in that: A support plate (2) is provided at the bottom end of the walking beam (1), a mounting frame (3) is provided on the outer side of the support plate (2), a support frame (5) is provided at the middle part of the inner bottom wall of the mounting frame (3), a driving wheel (10) is provided at the bottom end of the support plate (2), lifting components (6) for supporting the driving wheel (10) are provided on both sides of the inner bottom wall of the support frame (5), fixing blocks (12) are provided on the tops of both sides of the driving wheel (10), the tops of the lifting components (6) are fixedly connected to the fixing blocks (12), a driving component (7) for controlling the rotation direction of the lifting component (6) is transversely provided at the bottom of the support frame (5), buffer components (8) for lowering the driving wheel (10) to the bottom are provided at the four corners of the inner bottom wall of the support frame (5), and brake components (9) for controlling the driving wheel (10) to stop moving are provided on the left and right inner walls of the mounting frame (3).

2. The floating wheel mechanism of a crane traveling beam according to claim 1, characterized in that: The lifting assembly (6) comprises a rotating seat (61) rotatably connected to both sides of the inner bottom wall of the support frame (5), the top end of the rotating seat (61) is fixedly connected to a threaded tube (62), the bottom end of each of the fixed blocks (12) is fixedly connected to a threaded rod (63), and the bottom of the threaded rod (63) is threadedly connected to the inside of the threaded tube (62).

3. The floating wheel mechanism of a crane walking beam according to claim 2, characterized in that: The driving assembly (7) comprises a driving frame (71) which is laterally fixedly connected to the bottom of the supporting frame (5); a worm (72) is laterally rotatably connected inside the driving frame (71); a driving motor (73) is fixedly connected to the right side of the supporting frame (5); an output shaft of the driving motor (73) is fixedly connected to the worm (72); a worm wheel (74) is fixedly connected to the bottom of the threaded tube (62); and the rear side of the worm wheel (74) passes through the driving frame (71) and is meshedly connected to the worm (72).

4. The floating wheel mechanism of a crane traveling beam according to claim 1, characterized in that: The buffer assembly (8) comprises a buffer sleeve (81) fixedly connected to the four corners of the inner bottom wall of the support frame (5); the inner bottom wall of the buffer sleeve (81) is fixedly connected to a buffer spring (82); the top end of the buffer spring (82) is fixedly connected to a limit plate (83); the top end of the limit plate (83) is fixedly connected to a buffer rod (84).

5. The floating wheel mechanism of a crane traveling beam according to claim 1, characterized in that: The brake assembly (9) comprises a fixing frame (91) fixedly connected to the left and right inner walls of the mounting frame (3); the inner bottom wall of the fixing frame (91) is fixedly connected to a hydraulic rod (92); the top end of the hydraulic rod (92) is fixedly connected to a movable plate (93); one side of the top end of the movable plate (93) is fixedly connected to a support rod (94); the top end of the support rod (94) passes through the fixing frame (91) and is fixedly connected to a friction plate (95).

6. The floating wheel mechanism of a crane traveling beam according to claim 1, characterized in that: Guide wheels (4) are fixedly connected to both sides of the inner top wall of the mounting frame (3), guide grooves (11) are provided on both sides of the top of the support plate (2), and the bottoms of the guide wheels (4) are rollingly connected to the inside of the guide grooves (11).

7. The floating wheel mechanism of a crane traveling beam according to claim 1, characterized in that: Limiting grooves (14) are provided on both sides of the support plate (2), and the tops of the left and right inner walls of the mounting frame (3) are fixedly connected to limiting blocks (13), and the limiting blocks (13) are slidably connected to the inside of the limiting grooves (14).

8. The floating wheel mechanism of a crane traveling beam according to claim 1, characterized in that: The top of the driving wheel (10) is meshingly connected with the middle of the bottom end of the supporting plate (2).

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