Lifting centering adjusting structure for crane beam box
By adopting the buried shell and lifting plate structure on the crane beam box, combined with the two-way lifting screw unit and centering wheel design, the problem of time-consuming and labor-intensive lifting and centering of the beam box is solved, and efficient lifting, centering and fixing effects are achieved.
Patent Information
- Application Number
- CN202422985855.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-12-04
AI Technical Summary
In the prior art, the lifting and centering operations of the crane beam box are time-consuming and labor-intensive, and the crane cannot be effectively centered.
It adopts the buried shell and lifting plate structure, combined with the two-way lifting screw unit, centering wheel and tensioning unit. The lifting and centering of the beam box are achieved through the synchronous movement of the screw sleeve and the rotation of the centering wheel, and is fixed by the engagement of the gear and rack.
It realizes efficient lifting, centering and fixing of the beam box, simplifies the operation process and improves work efficiency.
Smart Images
Figure CN223372674U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cranes, and more particularly to a lifting and centering adjustment structure for a crane beam box. Background Art
[0002] A crane is a multi-action lifting machine capable of vertically lifting and horizontally transporting heavy objects within a certain range. Cranes primarily feature box-beam structures, including main beams and end beams. The beam box is the outer portion of these beams. During crane manufacturing, the main beam must be adjusted in height to align with the end beams, and the alignment of the main beam width centerline and the end beam length centerline must be adjusted. Furthermore, the heavy weight of the beam box makes it difficult to center and raise it. Using a crane only allows for lifting, but not centering. In light of this, we propose a lifting and centering adjustment structure for a crane beam box. Utility Model Content
[0003] The purpose of the utility model is to overcome the deficiencies of the prior art, meet practical needs, and provide a lifting and centering adjustment structure for a crane beam box to solve the current technical problem of time-consuming and labor-intensive lifting and centering of the beam box.
[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: a lifting and centering adjustment structure for a crane beam box, comprising a buried shell pre-buried in the ground, a lifting plate for placing the beam box is arranged above the buried shell, a track plate is installed at the bottom of the lifting plate, a bidirectional lifting screw unit is arranged on the track plate, the bidirectional lifting screw unit, a groove is provided on the top of the lifting plate, a centering wheel is provided on the inner circumference of the groove, and a tensioning unit is arranged between the centering wheel and the bidirectional lifting screw unit.
[0005] Preferably, two side plates are installed on the top of the lifting plate, and the side plates are fitted and limited with the beam box.
[0006] Preferably, the bidirectional lifting screw unit includes a bidirectional screw rotatably connected to the track plate, one end of the bidirectional screw is connected to a motor, and screw sleeves are symmetrically sleeved on both ends of the outer periphery of the bidirectional screw. The screw sleeve is constrained to move laterally on the track of the track plate, and a pulling plate is hinged between the screw sleeve and the buried crust.
[0007] Preferably, a connecting frame is connected to one side of the screw sleeve, and the connecting frame passes through the lifting plate and is rotatably connected to the center of the centering wheel. The lifting plate is provided with an inner groove for the connecting frame to move.
[0008] Preferably, the centering wheel includes a wheel center, and a protruding feeler is provided on the outer edge of the wheel center, and the two sides of the protruding feeler are respectively a curved pushing surface for pushing the beam box and a straight-edge constraining surface for constraining the beam box.
[0009] Preferably, the tensioning unit includes a gear and a rack that mesh with each other, the rack is fixed to the lifting plate, and one side of the gear is connected to the center of the centering wheel.
[0010] Compared with the prior art, the beneficial effects of the present invention are:
[0011] 1. The utility model adopts the symmetrical design of the screw sleeve and the hinged design of the pulling plate, and the opposite directions of the threads at both ends of the bidirectional screw, and cooperates with the connection between the connecting frame and the centering wheel. During the lifting process, the movement of the screw sleeve can synchronously drive the centering wheel to move in the center, thereby pushing the beam box to center it, achieving the lifting and centering effects, and solving the time-consuming and labor-intensive problems of lifting and centering the beam box.
[0012] 2. The present invention also designs the curved push surface and the straight-edge constraint surface of the centering wheel, and cooperates with the gear and rack to make the centering wheel rotate synchronously during movement, so that the curved push surface rotates toward the beam box and pushes it. When it is pushed to the centering position, the screw sleeve moves a small distance in the opposite direction, so that the straight-edge constraint surface can be fixed to the inner wall of the beam box, achieving the effect of auxiliary constraint, and further solving the problem of fixing the beam box after lifting and centering. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a structural diagram of the utility model without the side panels;
[0014] Figure 2 This is a schematic diagram of the structure of the utility model in use;
[0015] Figure 3 This is a schematic diagram of the inverted structure of the bidirectional lifting screw unit in the present invention;
[0016] Figure 4 This is a schematic diagram of the inverted connection structure between the screw rod sleeve and the centering wheel of the utility model;
[0017] Figure 5 For this utility model Figure 4 A display from another angle.
[0018] Explanation of the numbers in the figure: 1. Buried crust; 2. Lifting plate; 3. Track plate; 4. Bidirectional lifting screw unit; 5. Centering wheel; 6. Tensioning unit; 7. Side plate; 8. Connecting frame;
[0019] 401, bidirectional screw; 402, screw sleeve; 403, pulling plate;
[0020] 501, wheel center; 502, curved push surface; 503, straight edge constraint surface;
[0021] 601. Gear; 602. Rack. DETAILED DESCRIPTION
[0022] like Figures 1 to 5 As shown, the utility model relates to a lifting and centering adjustment structure for a crane beam box, comprising a buried shell 1, above which is provided a lifting plate 2 for placing the beam box. The buried shell 1 is pre-buried in the ground to lower its horizontal height, making it easier to place the beam box. Two side plates 7 are installed on the top of the lifting plate 2, and the side plates 7 are fitted and limited with the beam box. The installation position of the side plates 7 can be selected according to the size of the beam box.
[0023] In order to achieve lifting, a track plate 3 is installed at the bottom of the lifting plate 2, and a bidirectional lifting screw unit 4 is provided on the track plate 3. The bidirectional lifting screw unit 4 includes a bidirectional screw 401 that is rotatably connected to the track plate 3, and one end of the bidirectional screw 401 is connected to a motor. Screw sleeves 402 are symmetrically sleeved at both ends of the outer periphery of the bidirectional screw 401. The screw sleeve 402 is constrained to move laterally on the track of the track plate 3, and a pulling plate 403 is hinged between the screw sleeve 402 and the buried crust 1. It should be noted that the thread directions of the two ends of the outer periphery of the bidirectional screw 401 are designed to be opposite, so that the screw sleeve 402 will move synchronously towards and away from each other;
[0024] Working principle: when the external control structure controls the motor to run, it can drive the bidirectional screw 401 to rotate, so that the two screw sleeves 402 move synchronously, and then cooperate with the synchronous movement of the pulling plate 403 to realize the upward movement of the lifting plate 2, further driving the beam box to rise.
[0025] Since the screw sleeve 402 is aligned with each other when moving, a groove is formed on the top of the lifting plate 2, and a centering wheel 5 is provided on the inner circumference of the groove. A connecting frame 8 is connected to one side of the screw sleeve 402. The connecting frame 8 passes through the lifting plate 2 and is rotatably connected to the center of the centering wheel 5. The lifting plate 2 is provided with an inner groove for the connecting frame 8 to move.
[0026] Working principle: when the screw sleeve 402 moves in the center, it can drive the centering wheel 5 to move synchronously, and cooperate with the constraint of the side plate 7 to further press and push the side of the beam box to make it centered during the lifting process.
[0027] It is worth mentioning that the centering wheel 5 includes a wheel core 501, and a protruding feeler is provided on the outer edge of the wheel core 501. The two sides of the protruding feeler are respectively an arc pushing surface 502 for pushing the beam box and a straight-edge constraining surface 503 for constraining the beam box. A tensioning unit 6 is provided between the side of the centering wheel 5 and the bidirectional lifting screw unit 4. The tensioning unit 6 is inside the inner groove and includes a gear 601 and a rack 602 that mesh with each other. The rack 602 is fixed to the lifting plate 2, and one side of the gear 601 is connected to the center of the centering wheel 5.
[0028] Working principle: when the centering wheel 5 moves synchronously, it will rotate and roll, causing the curved push surface 502 to rotate toward the beam box, pushing the beam box. After being pushed to the centering position, the screw sleeve 402 moves a small distance in the opposite direction, so that the straight edge constraint surface 503 can fix the inner wall of the beam box. After fixation, processing and installation can be carried out. After installation is completed, the external manipulator or crane transports the beam box to another process, and then it can be lowered to transport the next beam box.
[0029] It should be noted that the connecting frame 8 is composed of two rods, by which the corresponding rod, such as the bent rod, can be replaced to change the position of the centering wheel 5, and further make the gear 601 on one side of the centering wheel 5 engage with the teeth at different positions of the rack 602 to achieve the adjustment of the lifting and centering height.
[0030] The embodiments disclosed in the present invention are preferred embodiments, but are not limited to them. Ordinary technicians in this field can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. As long as they do not deviate from the spirit of the present invention, they are all within the scope of protection of the present invention.
Claims
1. A lifting and centering adjustment structure for a crane beam box, characterized in that: The invention comprises a buried shell (1) pre-buried in the ground, a lifting plate (2) for placing a beam box is arranged above the buried shell (1), a track plate (3) is installed at the bottom of the lifting plate (2), a bidirectional lifting screw unit (4) is arranged on the track plate (3), the bidirectional lifting screw unit (4), a groove is opened on the top of the lifting plate (2), a centering wheel (5) is arranged on the inner circumference of the groove, and a tensioning unit (6) is arranged between the centering wheel (5) and the bidirectional lifting screw unit (4).
2. A lifting and centering adjustment structure for a crane beam box according to claim 1, characterized in that: Two side plates (7) are installed on the top of the lifting plate (2), and the side plates (7) are fitted with the beam box to limit the position.
3. The lifting and centering adjustment structure for a crane beam box according to claim 2, characterized in that: The bidirectional lifting screw rod unit (4) comprises a bidirectional screw rod (401) rotatably connected to the track plate (3), one end of the bidirectional screw rod (401) is connected to a motor, and screw rod sleeves (402) are symmetrically sleeved on both ends of the outer periphery of the bidirectional screw rod (401), and the screw rod sleeves (402) are constrained to move laterally on the track of the track plate (3), and a pulling plate (403) is hinged between the screw rod sleeves (402) and the buried shell (1).
4. The lifting and centering adjustment structure for a crane beam box according to claim 3, characterized in that: A connecting frame (8) is connected to one side of the screw rod sleeve (402), and the connecting frame (8) passes through the lifting plate (2) and is rotatably connected to the center of the centering wheel (5). The lifting plate (2) is provided with an inner groove for the connecting frame (8) to move.
5. The lifting and centering adjustment structure for a crane beam box according to claim 4, characterized in that: The centering wheel (5) comprises a wheel center (501), and a protruding feeler is provided on the outer edge of the wheel center (501). The two sides of the protruding feeler are respectively a curved pushing surface (502) for pushing the beam box and a straight edge restraining surface (503) for restraining the beam box.
6. The lifting and centering adjustment structure for a crane beam box according to claim 5, characterized in that: The tensioning unit (6) comprises a gear (601) and a rack (602) meshing with each other, the rack (602) being fixed to the lifting plate (2), and one side of the gear (601) being connected to the center of the centering wheel (5).