Hydraulic elevator

Abstract

The utility model discloses a hydraulic elevator, which relates to the technical field of warehouse logistics and comprises a first-stage stand column, a second-stage stand column, a third-stage stand column, a second-stage driven chain wheel, a third-stage hydraulic cylinder, a first-stage hydraulic cylinder, a mounting frame rod, a fourth-stage fork arm, a conveying bottom frame, a conveying wheel frame, a stabilizing bottom frame and a limiting mechanism. A third-level stand column is installed on the inner side of the second-level stand column, a fourth-level fork arm is installed at the bottom end of the first-level stand column, and a third-level hydraulic cylinder is installed at the top end of the fourth-level fork arm. According to the utility model, the structure of the elevator is transformed and upgraded, and a lifting power unit of the elevator is changed into hydraulic power, so that compared with a motor chain structure, the structure is more stable in operation and lower in failure rate, a counterweight frame of a traditional chain machine is omitted, the dead weight of the elevator is reduced, and the upper limit of conveying speed is higher; compared with a motor chain machine lifting system, the hydraulic lifting system is more stable in operation process.

Description

Technical Field

[0001] The utility model relates to the technical field of warehousing and logistics, in particular to a hydraulic hoist. Background Art

[0002] At present, in the traditional warehousing and logistics industry, vertical transportation operations are basically elevators. The lifting power of traditional elevators is generally composed of a motor and a chain. When lifting goods, the stability is not high enough, and the probability of failure during the lifting process is increased, resulting in a decrease in overall work efficiency. Moreover, after the stability is reduced, the safety of use cannot be guaranteed. Utility Model Content

[0003] The purpose of the present utility model is to provide a hydraulic lift to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned object, the utility model provides the following technical solution: a hydraulic hoist, comprising a first-level column, a second-level column, a third-level column, a second-level driven sprocket, a third-level hydraulic cylinder, a first-level hydraulic cylinder, a mounting frame rod, a fourth-level fork arm, a conveying chassis, a conveying wheel frame, a stabilizing chassis and a limiting mechanism;

[0005] A secondary column is installed on the inner side of the primary column, a third column is installed on the inner side of the secondary column, a fourth fork arm is installed on the bottom end of the primary column, a third hydraulic cylinder is installed on the top end of the fourth fork arm, the top end of the third hydraulic cylinder is connected to the inner side of the third column, a fixed base is installed on the middle and lower end of the front side of the primary column, two primary hydraulic cylinders are installed on both sides of the top end of the fixed base, and the top end of the primary hydraulic cylinder is connected to the middle and upper end of the front side of the secondary column.

[0006] Preferably, the secondary columns and the tertiary columns are concave structures when viewed from above, and the top ends of the primary hydraulic cylinders are each equipped with connecting blocks, and the rear sides of the connecting blocks are each connected to the top ends of the secondary columns.

[0007] Preferably, a mounting rod is installed between the top ends of the primary columns, and secondary driven sprockets are installed on both sides of the bottom ends of the mounting rod.

[0008] Preferably, the mounting frame rod is an arched structure when viewed from above, the top of the three-stage hydraulic cylinder is a T-shaped structure, and both sides of the top of the three-stage hydraulic cylinder are connected to the inner side of the three-stage column.

[0009] Preferably, a limiting mechanism is installed at the bottom end of the rear side of the first-level column, and a stable base frame is installed at the bottom end of the front side of the first-level column.

[0010] Preferably, a conveying chassis is provided at the rear bottom end of the first-level column, and a conveying wheel frame is movably mounted on the top end of the conveying chassis.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] The utility model upgrades the hoist structure by changing the lifting power unit of the hoist to hydraulic power. Compared with the motor chain structure, this structure has a smoother operation and a lower failure rate. It eliminates the counterweight frame of the traditional chain machine, reduces the deadweight of the hoist, and has a higher upper limit on the conveying speed. Compared with the motor chain machine lifting system, the hydraulic lifting system has a smoother operation process and lower requirements on the working environment. With reasonable daily maintenance, it has a longer service life and a relatively low failure rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 Provides an overall structural diagram for an embodiment of the present utility model;

[0014] Figure 2 A structural diagram of the overall rear bottom end provided by an embodiment of the present utility model;

[0015] Figure 3 This is a structural diagram of an overall top view provided for an embodiment of the utility model.

[0016] In the figure: 1. First-level column; 2. Second-level column; 3. Third-level column; 4. Second-level driven sprocket; 5. Third-level hydraulic cylinder; 6. First-level hydraulic cylinder; 7. Mounting rod; 8. Fourth-level fork arm; 9. Conveying chassis; 10. Conveying wheel frame; 11. Stabilizing chassis; 12. Limiting mechanism. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] See also Figure 1-3 The utility model provides a technical solution: a hydraulic hoist, including a first-level column 1, a second-level column 2, a third-level column 3, a second-level driven sprocket 4, a third-level hydraulic cylinder 5, a first-level hydraulic cylinder 6, a mounting rod 7, a fourth-level fork arm 8, a conveying base frame 9, a conveying wheel frame 10, a stabilizing base frame 11 and a limiting mechanism 12;

[0019] A secondary column 2 is installed on the inner side of the primary column 1, a tertiary column 3 is installed on the inner side of the secondary column 2, a fourth-level fork arm 8 is installed on the bottom end of the primary column 1, a third-level hydraulic cylinder 5 is installed on the top end of the fourth-level fork arm 8, the top end of the third-level hydraulic cylinder 5 is connected to the inner side of the third-level column 3, a fixed base is installed on the middle and lower end of the front side of the primary column 1, two primary hydraulic cylinders 6 are installed on both sides of the top end of the fixed base, and the top end of the primary hydraulic cylinder 6 is connected to the middle and upper end of the front side of the secondary column 2.

[0020] The secondary column 2 and the tertiary column 3 are concave structures when viewed from above, and the top of the primary hydraulic cylinder 6 is installed with a connecting block, and the rear side of the connecting block is connected to the top of the secondary column 2; in this way, the connection between the primary hydraulic cylinder 6 and the secondary column 2 is strengthened by the connecting block.

[0021] A mounting rod 7 is installed between the top ends of the primary columns 1 , and secondary driven sprockets 4 are installed on both sides of the bottom ends of the mounting rod 7 ; thus, the secondary driven sprocket 4 can be easily installed through the mounting rod 7 .

[0022] The mounting rod 7 is an arched structure when viewed from above, and the top of the three-stage hydraulic cylinder 5 is a T-shaped structure. Both sides of the top of the three-stage hydraulic cylinder 5 are connected to the inner side of the three-stage column 3; in this way, the three-stage hydraulic cylinder 5 is increased through the T-shaped structure.

[0023] A limiting mechanism 12 is installed at the bottom end of the rear side of the first-level column 1, and a stable base frame 11 is installed at the bottom end of the front side of the first-level column 1; thus, the stability of the entire device during use is increased by the stable base frame 11.

[0024] A conveying chassis 9 is provided at the rear bottom end of the first-level column 1, and a conveying wheel frame 10 is movably installed at the top of the conveying chassis 9; in this way, the lifted goods are conveyed by the coordinated use of the conveying chassis 9 and the conveying wheel frame 10.

[0025] Working principle: The utility model uses the first-level column 1 as the fixed end, and forms a first-level transmission system with the second-level column 2 through the first-level hydraulic cylinder 6. The lifting of the first-level hydraulic cylinder 6 drives the second-level column 2 to directly lift and lower; the third-level column 3 is connected to the second-level column 2 through a chain, and the chain transmission direction is changed by the second-level driven sprocket 4. During the lifting process of the second-level column 2 through the first-level transmission system, the second-level driven sprocket 4 is driven to lift and lower the third-level column 3 through the chain and the driven sprocket, forming a second-level movable pulley transmission system; the third-level transmission system is composed of a third-level column 3, an independent third-level hydraulic cylinder 5 fixed on the third-level column 3, and a fourth-level fork arm 8. The fourth-level fork arm 8 is connected to the third-level column 3 through a chain, and the direction is changed by the driven sprocket 5 on the third-level hydraulic cylinder;

[0026] The lifting action is due to the three-stage hydraulic cylinder 5 and the first-stage hydraulic cylinder 6 moving without interfering with each other and sharing the same hydraulic oil tank. In order to reduce the flow of the hydraulic workstation, control the size of the oil cylinder, and limit the order of lifting actions, the two-stage hydraulic cylinders do not move at the same time;

[0027] During the lifting process, before the first-level transmission reaches the maximum conveying height, the third-level hydraulic cylinder 5 does not work. After the first-level transmission reaches the maximum conveying height, the first-level hydraulic cylinder 6 stops working and the third-level hydraulic cylinder 5 starts working to make the goods reach the specified height.

[0028] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic hoist, comprising a primary column (1), characterized in that It also includes a secondary column (2), a tertiary column (3), a secondary driven sprocket (4), a tertiary hydraulic cylinder (5), a primary hydraulic cylinder (6), a mounting rod (7), a quaternary fork arm (8), a conveying base frame (9), a conveying wheel frame (10), a stabilizing base frame (11) and a limiting mechanism (12); A secondary column (2) is installed on the inner side of the primary column (1), a tertiary column (3) is installed on the inner side of the secondary column (2), a fourth-stage fork arm (8) is installed on the bottom end of the primary column (1), a third-stage hydraulic cylinder (5) is installed on the top end of the fourth-stage fork arm (8), the top end of the third-stage hydraulic cylinder (5) is connected to the inner side of the third-stage column (3), a fixed base is installed on the middle and lower end of the front side of the primary column (1), two primary hydraulic cylinders (6) are installed on both sides of the top end of the fixed base, and the top end of the primary hydraulic cylinder (6) is connected to the middle and upper end of the front side of the secondary column (2).

2. A hydraulic lift according to claim 1, characterized in that: The secondary column (2) and the tertiary column (3) are concave structures when viewed from above, and the top of the primary hydraulic cylinder (6) is equipped with a connecting block, and the rear side of the connecting block is connected to the top of the secondary column (2).

3. The hydraulic lift according to claim 1, characterized in that: A mounting rod (7) is installed between the top ends of the first-level columns (1), and a second-level driven sprocket (4) is installed on both sides of the bottom ends of the mounting rod (7).

4. A hydraulic lift according to claim 3, characterized in that: The mounting frame rod (7) is an arched structure when viewed from above, the top of the three-stage hydraulic cylinder (5) is a T-shaped structure, and both sides of the top of the three-stage hydraulic cylinder (5) are connected to the inner side of the three-stage column (3).

5. The hydraulic lift according to claim 1, characterized in that: A limiting mechanism (12) is installed at the rear bottom end of the first-level column (1), and a stable base frame (11) is installed at the front bottom end of the first-level column (1).

6. The hydraulic lift according to claim 1, characterized in that: A conveying base frame (9) is provided at the rear bottom end of the first-level column (1), and a conveying wheel frame (10) is movably installed at the top end of the conveying base frame (9).

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