Efficient pin penetrating device for root of arm rod of crawler crane
By designing an efficient pin penetration device for the root of the crawler crane boom, the combination of the screw casing and the rotating flange is used to solve the problems of high labor intensity, low efficiency and safety hazards of the main pin penetration operation at the root of the crawler crane boom, and an efficient and safe pin penetration process is achieved.
Patent Information
- Application Number
- CN202422317693.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-23
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-09-23
AI Technical Summary
The main pin penetration and pin operation at the root of the crawler crane boom is labor-intensive, inefficient and safety hazards. The existing automation equipment is expensive and has limited compatibility.
An efficient pin penetration device including fixing device, screw casing, rotary flange, screw, fixed pallet and boom main pin is designed. Through the cooperation of the screw casing and rotary flange, the precise alignment and smooth movement of the boom main pin and the pin hole are achieved, reducing labor intensity and improving efficiency.
It significantly improves the efficiency and safety of the penetration operation, reduces labor intensity, reduces the risk of damage to personnel and equipment, and ensures the stability and accuracy of the penetration process.
Smart Images
Figure CN223084692U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of heavy machinery hoisting, in particular to an efficient pin-passing device for the root of a crawler crane boom. Background Art
[0002] In the heavy machinery hoisting industry, as a key device for undertaking the hoisting tasks of large and heavy objects, the performance and operation convenience of a crawler crane directly affect the progress and safety of engineering projects. Especially the main pin-passing operation at the root of the boom, this step not only has high technical requirements, but also is directly related to the overall stability and working efficiency of the crane.
[0003] For a long time, the main pin-passing at the root of the crawler crane boom mainly relies on manual hammering, which not only has low efficiency, high labor intensity, but also has many safety hazards. In the high-altitude operation environment, the operator needs to face complex operation conditions, making the pin-passing process more difficult and dangerous. At the same time, frequent hammering causes wear on the pins and pin holes, increasing the maintenance cost and shortening the service life of the equipment.
[0004] Although there are already some automated or semi-automated pin-passing devices on the market, these devices are often expensive and have limited compatibility with crane models, making it difficult to be widely promoted in the industry. In addition, the operation complexity of these devices may also increase the learning cost of operators and affect the working efficiency. Summary of the Utility Model
[0005] The technical problem to be solved by the utility model is that the labor intensity of pin-passing of the crane boom is high, the efficiency is low, and there are safety hazards.
[0006] To solve the above technical problem, the technical solution adopted by the utility model is: an efficient pin-passing device for the root of a crawler crane boom, including a fixing device, a screw sleeve, a rotating flange, a screw, a fixing tray and a boom main pin. Screws are connected to both ends of the screw sleeve, and the thread directions of the two screws are opposite. One screw is fixedly connected to one end of the fixing device, and the other screw is connected to the fixing tray. The boom main pin is coaxially connected to the movable end of the fixing tray. Both ends of the fixing device are connected with screw sleeves.
[0007] Preferably, a rotating flange is fixedly connected to the middle of the screw sleeve, and rotating handles are evenly arranged on the outer side wall of the rotating flange.
[0008] Preferably, the rotating flange includes an annular rotating disk, a sleeve connection hole connected to the screw sleeve is opened in the center of the rotating disk, and hollow holes are evenly opened around the axis on the rotating disk.
[0009] Preferably, the screw rod is connected to the fixing device through a screw rod fixing joint. The screw rod fixing joint includes a connecting groove and an insertion head. The insertion head is fixed to the end of the screw rod. The connecting groove is opened at the end of the fixing device. A slot for the insertion head to insert is provided on the connecting groove, and a locking hole is provided on the side wall of the slot. An adaptation hole corresponding to the locking hole is opened on the insertion head.
[0010] Preferably, the fixing tray includes a kingpin fixing disk. A screw rod connecting hole is coaxially opened on the kingpin fixing disk and is fixedly connected to the end of the screw rod through the screw rod connecting hole. Fixing disk screw holes are evenly opened along the axis on the kingpin fixing disk and are fixedly connected to the boom kingpin through the fixing disk screw holes.
[0011] 1. The present utility model provides an efficient pin-passing device for the root of a crawler crane boom, significantly improving the efficiency and safety of pin-passing operations, reducing labor intensity, and reducing the risk of damage to personnel and equipment.
[0012] 2. By adopting a high-precision ball screw and a special nut, the smoothness and precision of the pin-passing process are ensured, improving the operation efficiency and convenience. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The following further describes the present utility model in conjunction with the drawings and embodiments:
[0014] Figure 1 It is a schematic structural diagram of an embodiment of the present utility model.
[0015] Figure 2 It is a side sectional view of the pin-passing device fixing tray in the embodiment of the present utility model.
[0016] Figure 3 It is a side sectional view of the rotating flange in the embodiment of the present utility model.
[0017] In the figure: 1. Boom kingpin; 2. Fixing tray; 201. Screw rod connecting hole; 202. Fixing disk screw hole; 203. Kingpin fixing disk; 3. Screw rod; 4. Screw rod sleeve; 5. Rotating flange; 501. Rotating handle; 502. Rotating disk; 503. Hollow hole; 504. Sleeve connecting hole; 6. Screw rod fixing joint; 7. Fixing device. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0018] As Figures 1 - 3As shown in the figure, the utility model provides an efficient pin-passing device for the root of a crawler crane boom, which includes a fixing device 7, a screw sleeve 4, a rotating flange 5, a screw 3, a fixing tray 2 and a boom main pin 1. Both ends of the screw sleeve 4 are connected with screws 3, and the thread directions of the two screws 3 are opposite. One screw 3 is fixedly connected to one end of the fixing device 7, and the other screw 3 is connected to the fixing tray 2. The boom main pin 1 is coaxially connected to the movable end of the fixing tray 2. Both ends of the fixing device 7 are connected with screw sleeves 4.
[0019] In the middle part, a fixing device 7 is adopted. After the fixing device 7 is locked by an external structure, pin-passing construction is carried out. Screws 3 are connected to both ends of the fixing device 7, and then the two screws 3 are respectively threadedly connected to the two screw sleeves 4. After that, two screws 3 are respectively connected to the movable ends of the two screw sleeves 4, and the external thread directions of the screws 3 at both ends of the screw sleeve 4 are opposite. During the pin-passing construction, ensure that the boom main pin 1 is aligned with the pin hole. Then, by rotating the screw sleeve 4, the screws 3 at both ends of the screw sleeve 4 move axially in opposite directions. Since the fixing device 7 is locked, the screw sleeve 4 drives the screw 3 away from the fixing device 7 to move in the direction away from the fixing device 7. Furthermore, the screw 3 drives the fixing tray 2 and the boom main pin 1 to move, so that the boom main pin 1 moves axially towards the pin hole of the boom. Adjust the rotation speed of the screw sleeve 4 according to the pin-passing situation of the boom main pin 1 to ensure the smoothness of the pin-passing process. This pin-passing device can carry out pin-passing construction for two booms at a time, greatly improving the efficiency and safety of the pin-passing construction.
[0020] As Figure 1 and Figure 3 shown in the figure, to facilitate the rotation of the screw sleeve 4. A rotating flange 5 is fixedly connected to the middle part of the screw sleeve 4, and rotating handles 501 are evenly arranged on the outer side wall of the rotating flange 5. By connecting the rotating handles 501, since the rotating flange 5 is fixed on the screw sleeve 4, the screw sleeve 4 is driven to rotate.
[0021] As Figure 3 shown in the figure, to reduce the weight and manufacturing cost of the rotating flange 5. The rotating flange 5 includes an annular rotating disk 502. A sleeve connection hole 504 connected to the screw sleeve 4 is opened at the center of the rotating disk 502, and hollow holes 503 are evenly opened around the axis on the rotating disk 502.
[0022] As a preferred implementation manner of the utility model. The screw 3 and the fixing device 7 are connected through a screw fixing joint 6. The screw fixing joint 6 includes a connection groove and an insertion head. The insertion head is fixed at the end of the screw 3, the connection groove is opened at the end of the fixing device 7, a slot for the insertion head to insert is provided on the connection groove, and a locking hole is provided on the side wall of the slot. An adaptation hole corresponding to the locking hole is opened on the insertion head.
[0023] For the convenience of the fixed connection between the screw 3 and the fixing device 7, an insertion head is fixedly welded to the end of the screw 3, and the insertion head is inserted into the connection groove of the fixing device 7 to ensure that the locking hole is aligned with the mating hole. Then, a bolt is inserted and tightened with a nut, thus realizing the fixed connection between the screw 3 and the fixing device 7.
[0024] As Figure 1 and Figure 2 shown. The fixed tray 2 includes a kingpin fixing disk 203. A screw connection hole 201 is coaxially formed in the kingpin fixing disk 203, and the end of the screw 3 is fixedly connected through the screw connection hole 201. Fixing disk screw holes 202 are evenly formed along the axis in the kingpin fixing disk 203, and the kingpin fixing disk 203 is fixedly connected to the boom kingpin 1 through the fixing disk screw holes 202. The movable end of the screw 3 at the end of the screw sleeve 4 away from the fixing device 7 is fixedly connected to the fixed tray 2 through the screw connection hole 201. Then, the fixed tray 2 and the boom kingpin 1 are fixedly connected by bolts. After the pin insertion of the boom kingpin 1 is completed, the bolts between the fixed tray 2 and the boom kingpin 1 are removed.
Claims
1. An efficient pin-passing device for the root of the boom of a crawler crane, characterized in that: It includes a fixing device (7), a screw sleeve (4), a rotating flange (5), a screw (3), a fixed tray (2) and an arm main pin (1). Screws (3) are connected to both ends of the screw sleeve (4), and the thread directions of the two screws (3) are opposite. One screw (3) is fixedly connected to one end of the fixing device (7), and the other screw (3) is connected to the fixed tray (2). The arm main pin (1) is coaxially connected to the movable end of the fixed tray (2). Screws sleeves (4) are connected to both ends of the fixing device (7).
2. The high-efficiency pin-passing device for the root of the boom of a crawler crane according to claim 1, characterized in that: A rotating flange (5) is fixedly connected to the middle of the screw sleeve (4), and rotating handles (501) are evenly arranged on the outer side wall of the rotating flange (5).
3. The efficient pin-passing device for the root of the boom of a crawler crane according to claim 2, characterized in that: The rotating flange (5) includes an annular rotating disc (502). A sleeve connection hole (504) connected to the screw sleeve (4) is opened at the center of the rotating disc (502), and hollow holes (503) are evenly opened around the axis on the rotating disc (502).
4. The efficient pin-passing device for the root of the boom of a crawler crane according to claim 1, wherein: The screw (3) is connected to the fixing device (7) through a screw fixing joint (6). The screw fixing joint (6) includes a connection groove and an insertion head. The insertion head is fixed to the end of the screw (3), the connection groove is opened at the end of the fixing device (7), a slot for the insertion head to insert is provided on the connection groove, a locking hole is provided on the side wall of the slot, and an adaptation hole corresponding to the locking hole is opened on the insertion head.
5. The high-efficiency pin-passing device for the root of the boom of a crawler crane according to claim 1, characterized in that: The fixed tray (2) includes a main pin fixing disc (203). A screw connection hole (201) is coaxially opened on the main pin fixing disc (203) and is fixedly connected to the end of the screw (3) through the screw connection hole (201). Fixing disc screw holes (202) are evenly opened along the axis on the main pin fixing disc (203) and are fixedly connected to the arm main pin (1) through the fixing disc screw holes (202).