Single-power lifting conveyor

Abstract

This utility model discloses a single-power lifting conveyor, relating to the field of conveying machinery technology. It includes a base frame and a conveyor frame located above the base frame. Two opposing lower transmission frames are mounted on the base frame, and upper transmission frames, each located above a corresponding lower transmission frame, are mounted on the conveyor frame, also with a tilting motion. The free ends of the lower transmission frames have laterally movable lower frame connecting parts on the conveyor frame, and the free ends of the upper transmission frames have laterally movable upper frame connecting parts on the base frame. The middle of each lower transmission frame is hinged to the middle of the corresponding upper transmission frame. Drive frames are hinged to the free ends of the two upper transmission frames, and these drive frames are laterally movable on the base frame. A lifting drive cylinder is hinged between the two drive frames. This utility model offers more convenient height adjustment, improves the synchronization of height adjustment, and ensures reliable operation.

Description

Technical Field

[0001] This utility model relates to the field of conveying machinery technology, and in particular to a single-power lifting conveyor. Background Technology

[0002] The production of prefabricated building steel beams includes steps such as pre-assembly of flanges and webs, welding of T-beams, assembly of T-beams and flanges, and welding of H-beams. Roller conveyors are used to transport workpieces between and at certain points in the process. This steel beam production line involves numerous pieces of equipment. During on-site installation, the conveying surface of the roller conveyor needs to be uniformly calibrated for different elevations of different steel beams. The elevation differences involved in this calibration are difficult to achieve simply by adjusting the height of the conveyor support legs; compensation is required by manually placing shims. Furthermore, during the compensation process, repeated calibrations are needed, including adjusting the height of the support legs, to achieve the final required elevation adjustment. The overall adjustment operation is very inflexible, inefficient, and highly dependent on worker experience. In addition, when the production line is used to produce steel beams of different sizes, the roller conveyor sometimes needs to be adapted to the beam dimensions, requiring adjustments to the conveying surface height to coordinate with gripping and assembly equipment for workpiece transfer. This again involves a large amount of height adjustment work, resulting in poor operational flexibility. Therefore, a more convenient means of adjusting the conveying height is needed to improve the current situation, taking into account the operating requirements of the steel beam production line. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a conveyor with more convenient height adjustment, which is conducive to improving the synchronization of height adjustment and using a reliable single-power lifting conveyor.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: a single-power lifting conveyor, including a base frame and a conveying frame located above the base frame. Two opposing lower transmission frames are mounted on the base frame in a pitching and swinging manner. Upper transmission frames are mounted on the conveying frame in a pitching and swinging manner, respectively located above the corresponding lower transmission frames. The free end of the lower transmission frame is provided with a lower frame connecting part that is laterally movable on the conveying frame. The free end of the upper transmission frame is provided with an upper frame connecting part that is laterally movable on the base frame. The middle part of the lower transmission frame is hinged to the middle part of the corresponding upper transmission frame. A drive frame is hinged to the free ends of the two upper transmission frames. The drive frame is laterally movable on the base frame. A lifting drive cylinder is hinged between the two drive frames.

[0005] As a preferred technical solution, the drive frame includes frame-side connecting rods and cylinder-side connecting rods. Four parallel frame connecting rods are connected between the frame-side connecting rods and the cylinder-side connecting rods. A drive cylinder base is fixedly mounted on the two middle frame connecting rods. The drive cylinder base is used to hinge the lifting drive cylinder. An obliquely arranged reinforcing tie rod is fixed between the two middle frame connecting rods and the outer frame connecting rod on the same side. The cylinder-side connecting rod is provided with a drive frame connecting part that is laterally movable on the bottom frame.

[0006] As a preferred technical solution, the drive frame connection part includes a drive frame connecting roller, and the bottom frame is provided with a drive frame movable guide groove for guiding the movement of the drive frame connecting roller.

[0007] As a preferred technical solution, the upper frame connection part includes upper frame connecting rollers, and the bottom frame is provided with an upper frame movable guide groove for guiding the movement of the upper frame connecting rollers.

[0008] As a preferred technical solution, the lower frame connecting part includes a lower frame connecting roller, and the conveying frame is provided with a lower frame movable guide groove for guiding the movement of the lower frame connecting roller.

[0009] As a preferred technical solution, the base frame is provided with a plurality of legs, and a leveling device is provided between the legs and the base frame.

[0010] As a preferred technical solution, the conveying frame is equipped with a roller conveying mechanism.

[0011] Due to the adoption of the above technical solution, the single-power lifting conveyor includes a base frame and a conveying frame located above the base frame. Two opposing lower transmission frames are mounted on the base frame, and upper transmission frames are mounted on the conveying frame, each located above a corresponding lower transmission frame. The free end of each lower transmission frame has a lower frame connecting part that moves laterally on the conveying frame, and the free end of each upper transmission frame has an upper frame connecting part that moves laterally on the base frame. The middle part of each lower transmission frame is hinged to the middle part of the corresponding upper transmission frame. Drive frames are hinged to the free ends of the two upper transmission frames, and these drive frames are laterally mounted on the base frame. A lifting drive cylinder is hinged between the two drive frames. In this invention, each lower transmission frame and upper transmission frame forms an X-shaped lifting frame, with a lifting drive cylinder connected to their proximal sides. This lifting drive cylinder drives the X-shaped lifting frame to deform, achieving height adjustment. The height adjustment operation is convenient and quick. The lifting drive cylinder is connected between the two X-shaped lifting frames via a drive frame, which increases the distance between the two X-shaped lifting frames, ensuring sufficient space for movement. Furthermore, using a single power source from the lifting drive cylinder allows for height adjustment of a longer transport frame structure, thereby reducing the number of drive cylinders used and improving reliability. In addition, the two X-shaped lifting frames are raised and lowered synchronously during the driving process due to the connection method, which helps to improve the synchronicity of height adjustment. Attached Figure Description

[0012] The following figures are intended only to illustrate and explain the present invention and do not limit the scope of the present invention. Wherein: Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the present utility model; Figure 2 This is a three-dimensional structural diagram of the X-shaped lifting frame, drive frame, and lifting drive cylinder of this utility model embodiment; Figure 3 This is a three-dimensional structural diagram of the base frame of an embodiment of this utility model.

[0013] In the diagram: 1-Base frame; 11-Support legs; 12-Leveling device; 2-Conveying frame; 21-Roller conveyor mechanism; 3-X-shaped lifting frame; 31-Lower transmission frame; 32-Upper transmission frame; 33-Lower frame connecting part; 34-Upper frame connecting part; 35-Lower frame movable guide groove; 36-Upper frame movable guide groove; 4-Drive frame; 41-Frame side connecting rod; 42-Cylinder side connecting rod; 43-Frame connecting rod; 44-Drive cylinder base; 45-Reinforcing tie rod; 46-Drive frame connecting part; 47-Drive frame movable guide groove; 5-Lifting drive cylinder. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the following detailed description, only certain exemplary embodiments of the present invention are described by way of illustration. Undoubtedly, those skilled in the art will recognize that various modifications can be made to the described embodiments without departing from the spirit and scope of the present invention. Therefore, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.

[0015] like Figure 1 , Figure 2 and Figure 3 As shown, a single-power lifting conveyor includes a base frame 1 and a conveying frame 2 located above the base frame 1. Conventionally, a roller conveying mechanism 21 is mounted on the conveying frame 2 for conveying workpieces. The roller conveying mechanism 21 includes a plurality of conveying rollers arranged and mounted on the conveying frame 2, with adjacent conveying rollers connected by a chain drive. A conveying drive motor is mounted on the conveying frame 2, and the power end of the conveying drive motor is poweredly connected to one of the conveying rollers. The structural principle of the roller conveying mechanism 21 described above is a well-known and commonly used technology, and will not be elaborated further here.

[0016] Two opposing lower transmission frames 31 are mounted on the base frame 1, and upper transmission frames 32, located above the corresponding lower transmission frames 31, are mounted on the conveyor frame 2, also with a pitch-swing mechanism. The free ends of the lower transmission frames 31 have lower frame connecting parts 33 that are laterally movable on the conveyor frame 2, and the free ends of the upper transmission frames 32 have upper frame connecting parts 34 that are laterally movable on the base frame 1. The middle portions of the lower transmission frames 31 and the corresponding upper transmission frames 32 are hinged together, thus forming an X-shaped lifting frame 3. Drive frames 4 are hinged to the free ends of the two upper transmission frames 32, and are laterally movable on the base frame 1. A lifting drive cylinder 5 is hinged between the two drive frames 4.

[0017] This embodiment forms two X-shaped lifting frames 3, with a lifting drive cylinder 5 connected to their proximal sides. This cylinder 5 drives the X-shaped lifting frames 3 to deform, achieving height adjustment. The height adjustment operation is convenient and quick. The lifting drive cylinder 5 is connected to the two X-shaped lifting frames 3 via a drive frame 4, increasing the distance between them and providing sufficient space for movement. Furthermore, using a single power source from the lifting drive cylinder 5 allows for height adjustment of a relatively long conveyor frame 2 structure, reducing the need for a single drive cylinder and improving reliability. Additionally, the two X-shaped lifting frames 3 are synchronously raised and lowered due to the connection method, improving the synchronicity of height adjustment. Preferably, the base frame 1 has several legs 11, and a leveling device 12 is provided between the legs 11 and the base frame 1. When the legs 11 are adjusted using the leveling device 12 to level the conveyor frame 2, the lifting drive cylinder 5 and the X-shaped lifting frames 3 are used to drive the conveyor frame 2 to adjust within a certain height range. The leveling device 12 is implemented by bolts passing through the support of the foot 11 and fastening nuts are set on the upper and lower sides respectively. This method is easy to derive by those skilled in the art in combination with existing foot technology, and will not be described in detail here.

[0018] In this embodiment, the upper frame connecting part 34 includes upper frame connecting rollers, and the bottom frame 1 is provided with an upper frame movable guide groove 36 for guiding the movement of the upper frame connecting rollers. Through rolling connection, the deformation resistance of the X-shaped lifting frame 3 can be reduced, enabling one of the lifting drive cylinders 5 to complete the height adjustment action. Similarly, the lower frame connecting part 33 includes lower frame connecting rollers, and the conveyor frame 2 is provided with a lower frame movable guide groove 35 for guiding the movement of the lower frame connecting rollers. More specifically, in this embodiment, the bottom frame 1 and the conveyor frame 2 both use channel steel parts to form corresponding movable guide grooves at the roller positions.

[0019] The drive frame 4 includes a frame-side connecting rod 41 and a cylinder-side connecting rod 42. Four parallel frame connecting rods 43 connect the frame-side connecting rod 41 and the cylinder-side connecting rod 42. A drive cylinder base 44 is fixedly mounted on the two middle frame connecting rods 43. The drive cylinder base 44 is used to hinge the lifting drive cylinder 5. An obliquely arranged reinforcing tie rod 45 is fixed between the two middle frame connecting rods 43 and the outer frame connecting rod 43 on the same side. A drive frame connecting part 46 is provided on the cylinder-side connecting rod 42 and is laterally movable on the bottom frame 1. The side of the drive frame 4 near the X-shaped lifting frame 3 can be connected to the bottom frame 1 via the upper frame connecting part 34, and the side near the lifting drive cylinder 5 can be connected to the bottom frame via the drive frame connecting part 46. The connection at these two points ensures the lateral movable installation of the drive frame 4 on the bottom frame 1.

[0020] Similarly, the drive frame connecting part 46 in this embodiment includes a drive frame connecting roller, and the bottom frame 1 is provided with a drive frame movable guide groove 47 for guiding the movement of the drive frame connecting roller. This rolling connection also helps to reduce driving resistance, and the drive frame movable guide groove 47 is also implemented using channel steel.

[0021] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A single-powered lifting conveyor, comprising a base frame and a conveying frame located above the base frame, characterized in that: Two opposing lower transmission frames are mounted on the base frame in a tilting motion. Upper transmission frames, located above the corresponding lower transmission frames, are mounted on the conveyor frame in a tilting motion. Each lower transmission frame has a lower frame connecting part that moves laterally on the conveyor frame at its free end. Each upper transmission frame has an upper frame connecting part that moves laterally on the base frame at its free end. The middle of each lower transmission frame is hinged to the middle of the corresponding upper transmission frame. Drive frames are hinged to the free ends of the two upper transmission frames, and these drive frames are laterally mounted on the base frame. A lifting drive cylinder is hinged between the two drive frames.

2. The single-power lifting conveyor as described in claim 1, characterized in that: The drive frame includes frame-side connecting rods and cylinder-side connecting rods. Four parallel frame connecting rods connect the frame-side connecting rods and the cylinder-side connecting rods. A drive cylinder base is fixedly mounted on the two middle frame connecting rods. The drive cylinder base is used to hinge the lifting drive cylinder. An obliquely arranged reinforcing tie rod is fixed between the two middle frame connecting rods and the outer frame connecting rod on the same side. The cylinder-side connecting rod is provided with a drive frame connecting part that is laterally movable on the bottom frame.

3. The single-power lifting conveyor as described in claim 2, characterized in that: The drive frame connection part includes a drive frame connecting roller, and the bottom frame is provided with a drive frame movable guide groove for guiding the movement of the drive frame connecting roller.

4. The single-powered lifting conveyor as described in claim 1, characterized in that: The upper frame connection part includes upper frame connecting rollers, and the bottom frame is provided with an upper frame movable guide groove for guiding the movement of the upper frame connecting rollers.

5. The single-power lifting conveyor as described in claim 1, characterized in that: The lower frame connection part includes a lower frame connecting roller, and the conveying frame is provided with a lower frame movable guide groove for guiding the movement of the lower frame connecting roller.

6. The single-power lifting conveyor as described in claim 1, characterized in that: The base frame is provided with several legs, and a leveling device is provided between the legs and the base frame.

7. The single-powered lifting conveyor as described in any one of claims 1 to 6, characterized in that: The conveying frame is equipped with a roller conveyor mechanism.

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