Electric carrying feeding and discharging trolley

Abstract

The utility model provides an electric carrying feeding and discharging trolley which comprises a movable bottom frame, a fixed column, a lifting column and a lifting arm assembly arranged on the lifting column, the lifting arm assembly is used for lifting goods, a hydraulic oil cylinder used for lifting the lifting column is vertically arranged in the fixed column, a labor-saving lifting assembly is arranged between the fixed column and the lifting column, and the lifting arm assembly is used for lifting the goods. The labor-saving lifting assembly comprises a fixed pulley, a connecting rope and a plurality of groups of resistance reducing pulleys, the fixed pulley is rotationally connected to the top of the lifting column, one end of the connecting rope is fixed on the lifting column, and the other end of the connecting rope bypasses the fixed pulley and is fixed on the fixed column. According to the electric carrying feeding and discharging trolley, the hydraulic oil cylinder is adopted to replace a high-power motor, meanwhile, the fixed pulley and the resistance reduction pulley are adopted, so that the lifting column saves labor in the lifting process and can bear large loads, air oil pressure of the hydraulic oil cylinder can be used for buffering in the descending process, and the stability and safety in the descending process are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of loading and unloading trolleys, in particular to an electric loading and unloading trolley. Background Art

[0002] At present, the loading and unloading methods of machine tools in the market are manual handling or using loading and unloading trolleys. For example, a boom bracket type loading and unloading trolley with Chinese patent publication number CN114212729A includes a main frame, the main frame is connected to a sliding assembly through a rising assembly, and the sliding assembly is connected to a boom assembly; the sliding assembly includes a screw fixing seat fixedly connected to the rising assembly, the screw fixing seat is threadedly connected to a screw rod, the screw rod is connected to a sliding seat, and the sliding seat is connected to the boom assembly through a mounting plate.

[0003] For example, the loading and unloading trolleys mentioned above are raised and lowered by hand-cranking with a screw. Since the goods are heavy, hand-cranking is more laborious. Even if it is changed to electric, due to the heavy load, a higher-power motor drive is required, which is not only costly but also more power-consuming. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides an electric loading and unloading trolley, which solves the problems raised in the above-mentioned background technology.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: an electric handling loading and unloading trolley, comprising a mobile base frame, a fixed column, a lifting column and a lifting arm assembly arranged on the lifting column, the lifting arm assembly is used to lift goods, a hydraulic cylinder for lifting the lifting column is vertically arranged in the fixed column, a labor-saving lifting assembly is arranged between the fixed column and the lifting column, the labor-saving lifting assembly comprises a fixed pulley, a connecting rope and several groups of drag reducing pulleys, the fixed pulley is rotatably connected to the top of the lifting column, one end of the connecting rope is fixed to the lifting column, and the other end passes around the fixed pulley and is fixed to the fixed column, and the fixed column and the lifting column are each provided with at least one group of drag reducing pulleys slidably connected to the opposite side.

[0008] Preferably, the lifting arm assembly includes a boom, a guide rail, and a slider, the boom is arranged on a lifting column, the guide rail is hinged on the boom in parallel through a plurality of connecting rods, and the slider is installed on the cargo and can slide in along the length direction of the guide rail.

[0009] Preferably, an anti-collision limit block is provided at the front end of the guide rail.

[0010] Preferably, the lifting arm assembly further comprises a winch and a positioning rod, wherein the positioning rod is connected to a pull rope on the winch, and a positioning hole for inserting the positioning rod is vertically opened on the sliding block.

[0011] Preferably, a receiving tray is provided on the fixed column below the goods.

[0012] Preferably, the receiving tray is horizontally rotatably connected to a fixed column.

[0013] (III) Beneficial effects

[0014] The utility model provides an electric loading and unloading trolley. It has the following beneficial effects:

[0015] 1. The electric loading and unloading trolley adopts hydraulic cylinder to replace high-power motor. At the same time, the fixed pulley and drag-reducing pulley can make the lifting column more labor-saving during the lifting process and can carry a larger load. When descending, the air and oil pressure of the hydraulic cylinder can also be used for buffering, thereby improving the stability and safety during the descent. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an axonometric drawing of the utility model;

[0017] Figure 2 It is a schematic diagram of the labor-saving lifting assembly of the utility model;

[0018] Figure 3 It is a schematic diagram of the positioning rod and the positioning hole of the utility model.

[0019] In the figure: 1 mobile chassis, 2 fixed column, 3 lifting column, 4 hydraulic cylinder, 5 labor-saving lifting component, 51 fixed pulley, 52 connecting rope, 53 drag-reducing pulley, 6 boom, 7 guide rail, 8 connecting rod, 9 limit block, 10 cargo, 11 slider, 12 winch, 13 positioning rod, 14 positioning hole, 15 receiving tray. DETAILED DESCRIPTION

[0020] The utility model provides an electric loading and unloading trolley. Figure 1-3 As shown, the mobile chassis 1 includes a fixed column 2, a lifting column 3 and a lifting arm assembly arranged on the lifting column 3. The lifting arm assembly is used to lift the cargo 10.

[0021] A hydraulic cylinder 4 for lifting the lifting column 3 is vertically arranged in the fixed column 2. The hydraulic cylinder 4 is electrically driven, and an electric control box is arranged on the mobile chassis 1 to control the lifting of the hydraulic cylinder 4. The mobile chassis 1 is provided with a plurality of universal wheels.

[0022] A labor-saving lifting assembly 5 is provided between the fixed column 2 and the lifting column 3. The labor-saving lifting assembly 5 includes a fixed pulley 51, a connecting rope 52 and a plurality of groups of drag-reducing pulleys 53. The fixed pulley 51 is rotatably connected to the top of the lifting column 3. One end of the connecting rope 52 is fixed to the lifting column 3, and the other end passes around the fixed pulley 51 and is fixed to the fixed column 2.

[0023] like Figure 1 As shown, a group of drag reducing pulleys 53 are rotatably provided on the fixed column 2, and the group of drag reducing pulleys 53 are slidably connected to the outer wall of the lifting column 3. A group of drag reducing pulleys 53 are rotatably provided on the lifting column 3, and the group of drag reducing pulleys 53 are slidably connected to the inner wall of the fixed column 2.

[0024] The use of hydraulic cylinder 4 to replace the high-power motor and the use of fixed pulley 51 and drag-reducing pulley 53 can make the lifting column 3 more labor-saving during the lifting process and can carry a larger load. When descending, the air and oil pressure of the hydraulic cylinder 4 itself can also be used for buffering, thereby improving the stability and safety during the descent.

[0025] like Figure 1 As shown, the lifting arm assembly includes a boom 6, a guide rail 7, and a slider 11. The boom 6 is arranged on the lifting column 3. The guide rail 7 is parallelly hinged on the boom 6 through two connecting rods, so that the guide rail 7 can swing forward and backward by a certain amplitude and has a certain flexibility. The cross section of the guide rail 7 is concave, and the slider 11 is a standard transport carrier. The slider 11 is installed on the cargo 10 through a number of bolts or connectors, and the slider 11 can slide in along the length direction of the guide rail 7.

[0026] In order to prevent the guide rail 7 and the boom 6 from colliding with the machine tool, an anti-collision limit block 9 is provided at the front end of the guide rail 7. The limit block 9 is located at the front end of the boom 6, and a rubber pad is provided on the limit block 9.

[0027] like Figure 3 As shown, the lifting arm assembly also includes a winch 12 and a positioning rod 13. The winch 12 is wound with a pull rope, and the positioning rod 13 is connected to the pull rope on the winch 12. The slider 11 is vertically provided with a positioning hole 14 for the positioning rod 13 to be inserted. When lifting the goods, the positioning rod 13 can be inserted into the positioning hole 14 of the slider 11, and then the winch 12 is rotated to make the slider 11 slowly slide into the guide rail 7.

[0028] Since the cargo 10 has just been processed by the machine tool and there is a lot of cutting fluid left, a receiving tray 15 is provided on the fixed column 2 below the cargo 10. The receiving tray 15 is used to receive the dripping cutting fluid, and one corner of the receiving tray 15 is horizontally rotatably connected to the fixed column 2. When hoisting the cargo, the receiving tray 15 can be moved away first, and then moved to the bottom of the cargo 10 after the cargo is hoisted.

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

Claims

1. An electric loading and unloading trolley, comprising a movable chassis (1), a fixed column (2), a lifting column (3) and a lifting arm assembly arranged on the lifting column (3), the lifting arm assembly being used for lifting goods (10), characterized in that: A hydraulic cylinder (4) for lifting the lifting column (3) is vertically arranged in the fixed column (2); a labor-saving lifting assembly (5) is arranged between the fixed column (2) and the lifting column (3); the labor-saving lifting assembly (5) comprises a fixed pulley (51), a connecting rope (52) and a plurality of groups of drag-reducing pulleys (53); the fixed pulley (51) is rotatably connected to the top of the lifting column (3); one end of the connecting rope (52) is fixed to the lifting column (3); the other end passes around the fixed pulley (51) and is fixed to the fixed column (2); and the fixed column (2) and the lifting column (3) are both provided with at least one group of drag-reducing pulleys (53) slidably connected to the opposite side.

2. The electric loading and unloading trolley according to claim 1 is characterized in that: The lifting arm assembly comprises a lifting arm (6), a guide rail (7), and a sliding block (11); the lifting arm (6) is arranged on a lifting column (3); the guide rail (7) is hinged to the lifting arm (6) in parallel through a plurality of connecting rods; and the sliding block (11) is installed on the cargo (10) and can slide in along the length direction of the guide rail (7).

3. The electric loading and unloading trolley according to claim 2 is characterized in that: An anti-collision limit block (9) is provided at the front end of the guide rail (7).

4. The electric loading and unloading trolley according to claim 2 is characterized in that: The lifting arm assembly also includes a winch (12) and a positioning rod (13), wherein the positioning rod (13) is connected to a pull rope on the winch (12), and a positioning hole (14) is vertically provided on the slider (11) for the positioning rod (13) to be inserted.

5. The electric loading and unloading trolley according to claim 1 is characterized in that: A receiving tray (15) is provided on the fixed column (2) below the goods (10).

6. The electric loading and unloading trolley according to claim 5 is characterized in that: The material receiving tray (15) is horizontally rotatably connected to the fixed column (2).

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