Balance crane for overturning slender workpiece
By designing a balanced lift for flipping of slender workpieces, the problem of bending and deformation of slender workpieces during flipping is solved, efficient processing and precise flipping of workpieces are achieved, and processing quality and efficiency are improved.
Patent Information
- Application Number
- CN202421721095.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-19
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-07-19
AI Technical Summary
In the mechanical manufacturing industry, slender workpieces are prone to bending deformation during the flip process, which affects processing accuracy and production efficiency. It is difficult for traditional lifting equipment to accurately control the flip process, resulting in impact force and vibration, further aggravating the deformation.
A balanced lift for flipping of slender workpieces is designed, including horizontal frames, connecting frames, rotary shafts and positioning parts. The balance of the horizontal frame is maintained through multiple narrow tensile reinforcements, and the hoisting belt is tied through the rotary shaft to ensure that the workpiece does not bend and deform during the flipping process.
It effectively solves the problem of bending and deformation of slender workpieces during flipping, improves the processing quality and efficiency of workpieces, and reduces the loss of production costs and production efficiency.
Smart Images
Figure CN222833890U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of mechanical workpiece hoisting, in particular to a balance crane used for turning over a workpiece. Background Art
[0002] In the machinery manufacturing industry, it is often necessary to flip long and slender workpieces to facilitate milling of different parts of the workpieces. Due to the high ratio of length to cross-section of long and slender workpieces, they will bend and deform during the flipping process. This deformation not only affects the machining accuracy and final quality of the workpiece, but may also lead to increased production costs and reduced production efficiency.
[0003] When traditional lifting equipment is used in the flipping of slender workpieces, it is often difficult to accurately control the flipping process of the workpiece, resulting in greater impact force and vibration during the flipping process, thereby aggravating the deformation of the workpiece.
[0004] In addition, sometimes it is necessary to process multiple sides and relative angles of slender workpieces. Therefore, the slender workpiece needs to be flipped to different angles. At this time, the design of a dedicated lifting machine and flipping tooling is relatively complex and costly. Therefore, a balancing crane for flipping slender workpieces is needed to be used in the production process of processing such products. Summary of the invention
[0005] The purpose of the utility model is to solve the problems existing in the above-mentioned prior art, and propose a balancing crane for flipping slender workpieces. The balancing crane can not only effectively solve the problem of bending and deformation of slender workpieces during flipping and lifting, but also flip the slender workpieces to different angles, thereby improving the processing quality and efficiency of slender workpieces.
[0006] To achieve the above purpose, the technical solution adopted is:
[0007] A balancing crane for turning over a slender workpiece, comprising:
[0008] Horizontal rack;
[0009] A connecting frame, which is fixed to the upper side of the horizontal frame, and is used to connect the balance crane and an external hoist;
[0010] A rotating shaft, which is rotatably fixed to the lower side of the horizontal frame through a bearing seat;
[0011] And a positioning member, which is arranged at one end of the horizontal frame, and the positioning member is used to control the rotation and positioning of the rotating shaft.
[0012] According to the utility model of the balancing crane for flipping a slender workpiece, further, there are at least two bearing seats, which are fixedly arranged on the lower side of the horizontal frame.
[0013] According to the utility model of the balance crane for flipping a slender workpiece, further, the positioning member includes a locking plate, a rotating handle and a handle;
[0014] The lock plate is fixedly mounted at one end of the horizontal frame, a through hole is formed in the center of the lock plate, and a plurality of positioning holes are evenly formed around the through hole;
[0015] A square hole is formed at one end of the rotating handle, and a pin connection hole is formed at the other end;
[0016] The handle can be slidably inserted into the pin connection hole and the positioning hole.
[0017] According to the utility model of the balancing crane for flipping a slender workpiece, further, the number of the positioning holes is eight.
[0018] According to the utility model of the balancing crane for flipping a slender workpiece, further, the rotating shaft is used for binding a lifting belt, and the contact surface between the rotating shaft and the lifting belt is a rough surface.
[0019] According to the utility model of the balancing crane for flipping a slender workpiece, further, one end of the rotating shaft is connected with a square shaft, and the square shaft passes through the through hole of the locking disk and is inserted into the square hole of the rotating handle.
[0020] According to the utility model of the balancing crane for flipping slender workpieces, further, the connecting frame includes a column and a hanger, the column is fixed at the top center of the horizontal frame, the hanger is fixed at the top of the column, and a hanging hole is opened in the center of the hanger, and the hanging hole is used to be hung on the hook of an external crane.
[0021] According to the balancing crane for flipping a slender workpiece of the utility model, further, a plurality of oblique tie bars are connected between the horizontal frame and the hanger, and the oblique tie bars are used to maintain the balance of the horizontal frame.
[0022] According to the utility model of the balancing crane for flipping a slender workpiece, further, the number of the oblique tie bars is an even number, and they are symmetrically arranged on both sides of the column.
[0023] According to the utility model of the balancing crane used for flipping a slender workpiece, further, the horizontal frame is an I-beam.
[0024] The beneficial effects achieved by adopting the above technical solution are:
[0025] The utility model of the balance crane for flipping slender workpieces has a simple structure, low cost, convenient operation and strong practicality. Multiple inclined tie bars are symmetrically arranged on both sides of the column, which effectively maintains the balance of the horizontal frame. Multiple lifting belts tied with the rotating shaft ensure that the slender workpiece will not bend or deform when lifting it.
[0026] The utility model has good flexibility in use. The handle, the rotating shaft, the square shaft and the rotating handle are used in combination, so that the turning process of the slender workpiece can be carried out smoothly. The slender workpiece is prevented from being deformed by impact due to its own gravity during the turning process. In addition, a plurality of positioning holes are evenly arranged on the lock plate of the utility model. With the use of the rotating handle and the handle, the slender workpiece can be turned to different angles, so as to process different parts of the slender workpiece. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments of the present invention are briefly introduced below. The drawings are only used to show some embodiments of the present invention, but not to limit all embodiments of the present invention thereto.
[0028] Figure 1 It is a schematic structural diagram of a balancing crane for flipping a slender workpiece according to an embodiment of the utility model;
[0029] Figure 2 This is a front view of the connecting frame of the embodiment of the utility model;
[0030] Figure 3 This is a front view of the connection between the rotating shaft and the square shaft of the embodiment of the utility model;
[0031] Figure 4 It is a side view of the connection between the rotating shaft and the square shaft of the embodiment of the utility model;
[0032] Figure 5 It is a structural schematic diagram of a positioning member of an embodiment of the utility model;
[0033] Figure 6 It is a side view of the lock disk of the embodiment of the utility model;
[0034] Figure 7 It is a structural schematic diagram of a rotating handle according to an embodiment of the utility model.
[0035] The meanings of the numbers in the figure are:
[0036] 1. Horizontal rack;
[0037] 2. Connecting frame, 21. Column, 22. Hanging device, 221. Hanging hole, 23. Oblique tie rod;
[0038] 3. Rotating shaft, 31. Square shaft;
[0039] 4. Bearing seat;
[0040] 5. Positioning piece, 51. Locking plate, 511. Positioning hole, 512. Through hole, 52. Rotating handle, 521. Square hole, 522. Pin hole, 53. Handle. DETAILED DESCRIPTION
[0041] The following will be combined with the drawings of the specific embodiments of the utility model to clearly and completely describe the exemplary scheme of the utility model. Unless otherwise defined, the technical terms or scientific terms used in the utility model should be the common meanings understood by people with ordinary skills in the relevant field.
[0042] like Figure 1 As shown, the balancing crane for flipping a slender workpiece of this embodiment includes a horizontal frame 1, a connecting frame 2, a rotating shaft 3 and a positioning member 5. The horizontal frame 1 is the basic framework of the balancing crane and is used to connect other components. The connecting frame 2 is fixed to the upper side of the horizontal frame 1, and the connecting frame 2 is used to connect the balancing crane and an external hoist; the rotating shaft 3 is rotatably fixed to the lower side of the horizontal frame 1 through a bearing seat; the positioning member 5 is set on one side of the horizontal frame, and the positioning member 5 is used to control the rotation and positioning of the rotating shaft 1.
[0043] Furthermore, the number of the bearing seats 4 is at least two, and the bearing seats 4 are fixedly connected to the lower side of the horizontal frame 1 by bolts and are evenly distributed along the axial direction of the horizontal frame 1 .
[0044] Optionally, the distance between every two adjacent bearing seats 4 is 0.5 m or 1 m. The number of bearing seats 4 is adjusted according to the length of the rotating shaft 3 .
[0045] like Figure 5-Figure 7 As shown, the positioning member 5 includes a locking disk 51, a rotating handle 52 and a handle 53; the locking disk 51 is welded and fixed to the right end of the horizontal frame 1, a through hole 512 is opened in the center of the locking disk 51, and a plurality of positioning holes 511 are evenly opened around the through hole 512; a square hole 521 is opened at one end of the rotating handle 52, and a pin hole 522 is opened at the other end; the handle 53 can be slidably inserted into the pin hole 522 and the positioning hole 511.
[0046] like Figure 6 As shown, the number of the positioning holes 511 is eight, and the angle formed by two adjacent positioning holes 511 and the center of the locking plate 51 is 45°.
[0047] The rotating shaft 3 is used for tying the lifting belt, and the contact surface between the rotating shaft 3 and the lifting belt is a rough surface, so as to avoid relative sliding between the rotating shaft 3 and the lifting belt when the rotating shaft 3 rotates.
[0048] Furthermore, a plurality of limit grooves are evenly formed on the rotating shaft 3, and the limit grooves are rough surfaces. A plurality of lifting belts are respectively tied to each limit groove to prevent the lifting belts from interfering with each other.
[0049] like Figure 3 and Figure 4As shown, a square shaft 31 is welded to one end of the rotating shaft 3 , and the square shaft 31 passes through the through hole 512 of the locking plate 51 and is inserted into the square hole 521 of the rotating handle 521 .
[0050] When the utility model is in the initial state, the handle 53 is inserted into a positioning hole 511 of the lock disk 51 to achieve the locking between the lock disk 51 and the rotating handle 52, so as to prevent the rotating shaft 3 from rotating; when the utility model needs to work, the handle 53 is pulled out from the positioning hole 511 of the lock disk 51. The handle 53 is rotated, and the rotating shaft 3 is driven to rotate through the rotating handle 52 and the square shaft 31. Every time the rotating handle 52 rotates 45°, the handle 53 can be inserted into the positioning hole 511 of the lock disk 51 again. Repeat this action to achieve the positioning of the rotating shaft 52 after rotating at different angles.
[0051] like Figure 1 and Figure 2 As shown, the connecting frame 2 includes a column 21 and a hanger 22, and the column 21 is welded to the top center of the horizontal frame 1. The hanger 22 is welded to the top of the column 21, and a hanging hole 221 is opened in the center of the hanger 22, and the hanging hole 221 is used to be hung on the hook of an external crane.
[0052] like Figure 1 and Figure 2 As shown, a plurality of inclined braces 23 are welded between the horizontal frame 1 and the hanger 22. The inclined braces 23 are used to maintain the balance of the horizontal frame 1.
[0053] Furthermore, the number of the oblique braces 23 is an even number, and the oblique braces 23 are symmetrically arranged on both sides of the column 21 .
[0054] It should be understood that the number of the oblique tie bars 23 can be adjusted according to the length of the horizontal frame 1 , so as to effectively maintain the balance of the horizontal frame 1 .
[0055] Further, the horizontal frame 1 is an I-beam. Optionally, the length of the I-beam is 5m to 20m, and the specific length can be selected according to actual needs. Preferably, the length of the I-beam is about 10m.
[0056] Preferably, the elongated workpiece to be lifted has a length of about 10 m and a weight of less than 4 tons.
[0057] How this application works is:
[0058] 1) When the utility model is in the initial state, the handle 53 is inserted into a positioning hole 511 of the lock plate 51 to achieve the locking between the lock plate 51 and the rotating handle 52; at this time, the slender workpiece is placed on the workbench fixture;
[0059] 2) Tie a plurality of lifting belts sequentially between the rotating shaft 3 and the elongated workpiece, and insert the hook of the external lifting machine into the lifting hole 221;
[0060] 3) Start the crane to suspend the slender workpiece to a suitable height, and pull the handle 53 out of the positioning hole 511 of the lock plate 51. Turn the handle 53 and the rotating handle 52 to drive the rotating shaft 3 to rotate 45°, and at the same time drive the slender workpiece to rotate 45°, and insert the handle 53 into the positioning hole 511 of the lock plate 51 again;
[0061] 4) Place the slender workpiece on the workbench fixture and perform milling on a certain part of the slender workpiece;
[0062] 5) Repeat steps 3 and 4 to achieve flipping and positioning of the slender workpiece at different angles so as to perform milling processing on different parts of the slender workpiece.
[0063] It should be noted that when one element is “connected”, “coupled” or “connected” to another element, it may mean that they are directly connected, coupled or connected, but it should be understood that there may be intermediate elements between the two; that is, the positional relationships of direct connection and indirect connection are covered.
[0064] It should be noted that the use of "a" or "an" and similar words does not necessarily indicate a quantitative limitation. "Include" or "comprising" and similar words mean that the elements or objects preceding the word include the elements or objects listed after the word and their equivalents, but do not exclude other elements or objects.
[0065] It should be noted that terms such as "up", "down", "left" and "right" indicating orientation or positional relationship are only used to indicate relative positional relationship. This is for the convenience of describing the present utility model, and does not mean that the device or element must have a specific orientation, be constructed and operated in a specific orientation. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.
[0066] The preferred embodiments for implementing the present invention have been described in detail above, but it should be understood that the role of these embodiments is only to exemplify, and is not intended to limit the scope, applicability or configuration of the present invention in any way. The protection scope of the present invention is defined by the attached claims and their equivalents. A person of ordinary skill in the art can make many changes to the above embodiments under the guidance of the present invention, and these changes all fall within the protection scope of the present invention.
Claims
1. A balancing crane for turning over a slender workpiece, characterized in that: include: Horizontal rack; A connecting frame, which is fixed to the upper side of the horizontal frame, and is used to connect the balance crane and an external hoist; A rotating shaft, which is rotatably fixed to the lower side of the horizontal frame through a bearing seat; And a positioning member, which is arranged at one end of the horizontal frame, and the positioning member is used to control the rotation and positioning of the rotating shaft.
2. The balancing crane for turning over a slender workpiece according to claim 1, characterized in that: There are at least two bearing seats, which are fixed on the lower side of the horizontal frame.
3. The balancing crane for turning over a slender workpiece according to claim 1, characterized in that: The positioning member includes a lock disk, a rotating handle and a handle; The lock plate is fixedly mounted at one end of the horizontal frame, a through hole is formed in the center of the lock plate, and a plurality of positioning holes are evenly formed around the through hole; A square hole is formed at one end of the rotating handle, and a pin connection hole is formed at the other end; The handle can be slidably inserted into the pin connection hole and the positioning hole.
4. The balancing crane for turning over a slender workpiece according to claim 3, characterized in that: The number of the positioning holes is eight.
5. The balancing crane for turning over a slender workpiece according to claim 1, characterized in that: The rotating shaft is used for tying the lifting belt, and the contact surface between the rotating shaft and the lifting belt is a rough surface.
6. The balancing crane for turning over a slender workpiece according to claim 3, characterized in that: One end of the rotating shaft is connected with a square shaft, and the square shaft passes through the through hole of the locking plate and is inserted into the square hole of the rotating handle.
7. The balancing crane for turning over a slender workpiece according to claim 1, characterized in that: The connecting frame includes a column and a hanger, wherein the column is fixed at the top center of the horizontal frame, and the hanger is fixed at the top of the column. A hanging hole is opened at the center of the hanger, and the hanging hole is used for hanging on the hook of an external crane.
8. The balance crane for turning over a slender workpiece according to claim 7, characterized in that: A plurality of oblique tie bars are connected between the horizontal frame and the hanger, and the oblique tie bars are used to maintain the balance of the horizontal frame.
9. The balancing crane for turning over a slender workpiece according to claim 8, characterized in that: The number of the oblique tie bars is an even number, and they are symmetrically arranged on both sides of the column.
10. The balance crane for turning over a slender workpiece according to claim 1, characterized in that: The horizontal frame is an I-beam.