Welding-free counterweight type elevator

Abstract

The utility model discloses a welding-free counter weight type elevator which comprises a base, a stand column, a stand column connecting plate, a lifting seat and a driving device for achieving lifting of the lifting seat, the stand column is vertically arranged and is vertically connected with the base through the stand column connecting plate, the lifting seat is connected with the stand column in a sliding mode and slides up and down in the vertical direction of the stand column, and the stand column connecting plate is vertically arranged. The vertical face of the stand column connecting plate is fixedly connected with the vertical face of the stand column through bolts, and the horizontal face of the stand column connecting plate is fixedly connected with the horizontal face of the base through bolts. According to the welding-free balance weight type elevator, fixed connection is conducted through the bolts, washing and welding are omitted, the assembly efficiency is improved, the assembly difficulty of the elevator is reduced, the bolts are provided with the bolt holes, the bolt holes have freedom degrees in the X-axis direction, the Y-axis direction and the Z-axis direction, the assembly difficulty is reduced, stable lifting of the lifting base is guaranteed, and the service life of the elevator is prolonged. The balance weight is arranged in a single-head mode, the structure is simplified, the lifting base can ascend and descend synchronously left and right, and stability of the lifting base is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of logistics and transportation, specifically to a lifting machine, and more particularly to a weld-free counterweight lifting machine. Background Technology

[0002] Goods conveying equipment used in automated conveying and sorting lines for changing layers includes single-arm elevators, conveyors on cargo platforms, and conveyors distributed on both sides of single-arm elevators.

[0003] A hoist is a mechanical device that transports goods by changing their potential energy. By lifting and lowering, the hoist connects the conveyor on the cargo platform with the conveyors on both sides, enabling the transfer of goods between different levels.

[0004] During transportation, goods may need to be transferred between different levels. This is typically achieved using ramp conveyors or manual sorting. Compared to manual sorting with elevators, which is more labor-intensive and less efficient, ramp conveyors allow for a longer movement path for the goods. Although the goods may be larger in size, the required precision in their movement along the same path is lower.

[0005] Therefore, the movement accuracy of goods transported by elevators requires higher precision along a unit path. An elevator consists of a lifting seat, a base, and a column. A coordinate system is established with the plane of the base as the reference, with the horizontal axis as the X-axis, the vertical axis as the Y-axis, and the vertical axis as the Z-axis. Correspondingly, the base and column need to be perpendicular to each other to ensure the movement accuracy of the lifting seat. Welding is typically used to connect components, requiring the components to be leveled to increase the assembly precision of the elevator and thus improve the movement accuracy of the lifting seat. However, welding is not only inefficient but also requires high processing standards. Summary of the Invention

[0006] The purpose of this invention is to construct a welding-free counterweight hoist based on the existing hoist and the need to reduce the assembly difficulty of the hoist.

[0007] A weld-free counterweight hoist includes a base, a column, a column connecting plate, a lifting seat, and a drive device for raising and lowering the lifting seat. The column is vertically arranged and vertically connected to the base via the column connecting plate. The lifting seat is slidably connected to the column and slides up and down along its vertical direction. The column connecting plate is vertically arranged, and its vertical surface is fixedly connected to the vertical surface of the column by bolts. The horizontal surface of the column connecting plate is fixedly connected to the horizontal surface of the base by bolts.

[0008] Furthermore, a coordinate system is established with the horizontal direction (width direction) of the hoist as the X-axis, the vertical direction (length direction) as the Y-axis, and the vertical direction as the Z-axis. The bolts are equipped with bolt holes, which have degrees of freedom in the X, Y, and Z axes. This ensures that the hoisting seat can stably rise and fall in the vertical direction.

[0009] Furthermore, the support column is provided in two parts, located on the left and right sides of the base respectively (with the side with the lifting seat in front). An installation beam is fixedly installed between the two support columns. A slide rail is fixedly installed on the front outer wall of each support column, and a slider is slidably connected to the slide rail. The sliders on the left and right sides are fixedly connected to the left and right sides of the lifting seat respectively. Guide structures are provided on both the left and right sides of the lifting seat to ensure synchronous lifting and lowering, thus guaranteeing the stability of the lifting seat.

[0010] Furthermore, the driving device includes a motor, a first chain drive mechanism, and a second chain drive mechanism. The motor is mounted on the base, the second chain drive mechanism is vertically mounted, the chain in the second chain drive mechanism is fixedly connected to the lifting seat, the lifting seat moves up and down with the movement of the chain, and the motor is connected to the second chain drive mechanism through the first chain drive mechanism.

[0011] Furthermore, a second rotating shaft and a first rotating shaft are respectively provided at the middle positions of the mounting beam and the base. The second rotating shaft and the first rotating shaft are parallel and located in the same vertical plane. The first end of the second chain drive mechanism is connected to the first rotating shaft, and the second end of the second chain drive mechanism is connected to the second rotating shaft. The first end of the first chain drive mechanism is connected to the motor, and the second end of the first chain drive mechanism is connected to the first rotating shaft. The rotating shafts at the middle positions of the mounting beam and the base ensure that the lifting power provided to the lifting seat is singular, ensuring the left and right synchronization of the lifting seat and its stability.

[0012] Furthermore, the lifting seat is provided with a connector, which is located at the rear center of the lifting seat and is fixedly connected to the chain in the second chain drive mechanism.

[0013] Furthermore, two wire wheels are mounted on the mounting beam, symmetrically positioned about the second rotating shaft. The lifting seat has two left and right wire clips, each located on the same vertical plane as the left and right wire wheels. Each wire wheel is wound with a wire rope, one end of which is connected to a wire clip on the lifting machine, and the other end is connected to a counterweight. Both wire ropes are connected to the same counterweight. This same counterweight is connected to the lifting seat via the two wire ropes, ensuring synchronous movement of the lifting seat and guaranteeing its stability.

[0014] Furthermore, the base is provided with a counterweight bracket. There are two counterweight brackets, which are symmetrically positioned on the left and right. The supporting part of the counterweight bracket and the counterweight are located in the same vertical plane. When the counterweight descends to the lowest point, it will be placed on the counterweight bracket.

[0015] Furthermore, the first chain drive mechanism includes a first driving sprocket, a first driven sprocket, and a first chain. The first driving sprocket is connected to the motor, the first driven sprocket is disposed on the first rotating shaft, and the first chain meshes with the first driving sprocket and the first driven sprocket.

[0016] Furthermore, the second chain drive mechanism includes a second driving sprocket, a second driven sprocket, and a second chain. The second driving sprocket is disposed on the first rotating shaft, the second driven sprocket is disposed on the second rotating shaft, and the second chain meshes with the second driving sprocket and the second driven sprocket.

[0017] Furthermore, the column is equipped with a limit switch, which can effectively control the lifting stroke of the lifting seat.

[0018] The beneficial effects of this utility model are as follows: 1. The column, base, and column connecting plate are fixedly connected by bolts, eliminating the need for leveling and welding of the mounting surfaces of the column, base, and column connecting plate, while improving the assembly efficiency of the hoist and reducing the assembly difficulty of the hoist; 2. The bolts are equipped with bolt holes, which have degrees of freedom in the X, Y, and Z axes, not only reducing the assembly difficulty of the hoist but also ensuring that the hoist seat can be stably raised and lowered in the vertical direction; 3. The counterweight is set at a single end and connected to the hoist seat through two steel wire ropes, and the hoist seat is driven by a single power source. While simplifying the structure, it also enables the hoist seat to move synchronously left and right during lifting and lowering, ensuring the stability of the hoist seat.

[0019] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this invention more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of a specific example of the hoist of this utility model;

[0022] Figure 2 This is a schematic diagram of the overall rear structure of a specific example of the hoist of this utility model;

[0023] Figure 3 yes Figure 1 A magnified view of the local structure;

[0024] Figure 4 This is a partial structural schematic diagram of a specific example of the hoist of this utility model;

[0025] Figure 5 This is a schematic diagram of the coordinate system in a specific example of the hoist of this utility model;

[0026] In the diagram: 101, base; 102, column connecting plate; 103, column; 104, second chain drive mechanism; 105, slide rail; 106, wire rope; 107, limit switch; 108, counterweight; 109, lifting seat; 110, wire wheel; 111, fixing component; 112, motor; 113, reinforcing component; 114, first chain drive mechanism; 115, mounting beam; 116, second rotating shaft; 117, counterweight bracket; 118, connecting component; 119, first rotating shaft. Detailed Implementation

[0027] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0028] The present invention provides a further description of a weld-free counterweight hoist in conjunction with the accompanying drawings.

[0029] like Figures 1-4 As shown, the counterweight hoist in this embodiment includes a base 101, a column 103, and a column connecting plate 102. There are two columns 103, which are respectively arranged on the left and right sides of the base 101. The column connecting plate 102 is used to connect the base 101 and the column 103. There are two columns 102, which are symmetrically positioned on the left and right. The column connecting plate 102 includes a vertical surface and a horizontal surface. The vertical surface of the column connecting plate 102 is fixedly connected to the vertical surface of the column 103 by bolts. The horizontal surface of the column connecting plate 102 is fixedly connected to the horizontal surface of the base 101 by bolts.

[0030] Each column 103 has a slide rail 105 fixedly installed on its front end face, and a slider is slidably connected to the slide rail 105.

[0031] The counterweight-type hoist includes a lifting base 109, the rear end face of which is fixedly connected to the aforementioned slider. The sliders, which are mounted on the left and right columns 103, are located on the left and right sides of the lifting base 109, respectively, so that the lifting base 109 moves synchronously left and right during lifting. A connecting member 118 is fixedly installed at the rear center of the lifting base 109.

[0032] A motor 112 and a first rotating shaft 119 mounted on the base 101 via bearings are fixedly installed on the base 101. The first rotating shaft 119 and the column 103 are arranged in the same vertical plane. The motor 112 is located behind the first rotating shaft 119. The motor 112 and the first rotating shaft 119 are connected by a first chain drive mechanism 114.

[0033] An installation beam 115 and a reinforcing member 113 are fixedly installed between the two columns 103 on the left and right. There is one installation beam 115 located at the top of the column 103. There are two reinforcing members 113 located below the installation beam 115. Two vertically arranged fixing members 111 are fixedly installed on the rear end face of the two reinforcing members 113. The two fixing members 111 are symmetrically positioned on the left and right.

[0034] The upper end face of the mounting beam 115 is provided with a second rotating shaft 116 mounted by a bearing. The second rotating shaft 116 and the first rotating shaft 119 are located in the same vertical plane. The second rotating shaft 116 and the first rotating shaft 119 are connected by a second chain drive mechanism 104, which is vertically arranged.

[0035] The first rotating shaft 119 and the second rotating shaft 116 are parallel and located in the same vertical plane.

[0036] The first chain drive mechanism 114 includes a first driving sprocket, a first driven sprocket, and a first chain. The first driving sprocket is connected to the motor 112, the first driven sprocket is mounted on the first rotating shaft 119, and the first chain meshes with the first driving sprocket and the first driven sprocket. The first end of the first chain is connected to the motor 112 through the first driving sprocket, and the second end of the first chain is connected to the first rotating shaft 119 through the first driven sprocket.

[0037] The second chain drive mechanism 104 includes a second driving sprocket, a second driven sprocket, and a second chain. The second driving sprocket is mounted on the first rotating shaft 119, and the second driven sprocket is mounted on the second rotating shaft 116. The second chain meshes with the second driving sprocket and the second driven sprocket. The first end of the second chain is connected to the first rotating shaft 119 through the second driving sprocket, and the second end of the second chain is connected to the second rotating shaft 116 through the second driven sprocket.

[0038] The front end of the second chain is fixedly connected to the connector 118, allowing the lifting seat 109 to rise and fall as the second chain moves.

[0039] Two wire wheels 110 are fixedly installed on the mounting beam 115. The two wire wheels 110 are symmetrical about the second rotating shaft 116. A wire rope 106 is wound on the wire wheels 110. The first end of the wire rope 106 extends downward and is fixedly connected to the lifting seat 109 through a wire buckle. There are two wire buckles on the lifting seat 109, which are symmetrical about the connecting piece 118. The second end of the wire rope 106 extends downward and is fixedly connected to the counterweight 108 through a wire buckle. There are two wire buckles on the counterweight 108, which are respectively set on the left and right sides of the counterweight 108 to make the counterweight evenly stressed from left to right.

[0040] A counterweight bracket 117 is fixedly installed on the base 101. There are two counterweight brackets 117, which are symmetrically positioned on the left and right. The counterweight bracket 117 and the counterweight 108 are located in the same vertical plane. When the counterweight 108 descends to the lowest point, it will be supported by the counterweight bracket 117.

[0041] A limit switch 107 is fixedly installed on the outer side of the left column 103. The limit switch 107 has two parts, one for the upper part and one for the lower part. It can effectively control the lifting stroke of the lifting seat 109.

[0042] like Figure 5 As shown, a coordinate system is established with the horizontal direction (width) of the hoist as the X-axis, the vertical direction (length) as the Y-axis, and the vertical direction as the Z-axis. The base 101, the column connecting plate 102, and the column 103 are fixedly connected by bolts. The bolts are equipped with bolt holes, which have degrees of freedom in the X, Y, and Z axes. This ensures that the hoisting seat can stably rise and fall in the vertical direction.

[0043] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A welding-free counterweight type elevator, comprising a base, a column, a column connecting plate, an elevator seat and a driving device for realizing the lifting of the elevator seat, the column is vertically arranged and is connected with the base perpendicularly through the column connecting plate, the elevator seat is slidingly connected with the column and slides up and down along the vertical direction of the column, characterized in that, The column connecting plate is vertically arranged, and the vertical surface of the column connecting plate is fixedly connected to the vertical surface of the column by bolts. The horizontal surface of the column connecting plate is fixedly connected to the horizontal surface of the base by bolts.

2. The weldless counterweight elevator of claim 1, wherein, A coordinate system is established with the horizontal direction of the hoist as the X-axis, the vertical direction of the hoist as the Y-axis, and the vertical direction of the hoist as the Z-axis. The bolt is equipped with bolt holes, and the bolt holes have degrees of freedom in the three directions of the X-axis, Y-axis, and Z-axis.

3. The weldless counterweight elevator of claim 1, wherein, The support column is provided in two parts and is located on the left and right sides of the base respectively. An installation beam is fixedly installed between the two support columns. A slide rail is fixedly installed on the front outer wall of the support column. A slider is slidably connected on the slide rail. The sliders located on the left and right sides are fixedly connected to the left and right sides of the lifting seat respectively.

4. The weldless counterweight elevator of claim 3, wherein, The driving device includes a motor, a first chain drive mechanism, and a second chain drive mechanism. The motor is mounted on the base, the second chain drive mechanism is vertically mounted, and the chain in the second chain drive mechanism is fixedly connected to the lifting seat. The lifting seat moves up and down with the movement of the chain. The motor is connected to the second chain drive mechanism through the first chain drive mechanism.

5. The weldless counterweight elevator of claim 4, wherein, A second rotating shaft and a first rotating shaft are respectively provided at the middle position of the mounting beam and the middle position of the base. The second rotating shaft and the first rotating shaft are parallel and located in the same vertical plane. The first end of the second chain drive mechanism is connected to the first rotating shaft, the second end of the second chain drive mechanism is connected to the second rotating shaft, the first end of the first chain drive mechanism is connected to the motor, and the second end of the first chain drive mechanism is connected to the first rotating shaft.

6. The weldless counterweight elevator of claim 4, wherein, The lifting seat is provided with a connector, which is located at the rear middle position of the lifting seat and is fixedly connected to the chain in the second chain drive mechanism.

7. The weldless counterweight elevator of claim 5 wherein, Two wire wheels are installed on the mounting beam. The two wire wheels are symmetrical about the second rotating shaft. The lifting seat is provided with two wire buckles arranged on the left and right sides. The wire buckles on the left and right sides are respectively located in the same vertical plane with the wire wheels on the left and right sides. A wire rope is wound on each wire wheel. One end of the wire rope is connected to the wire buckle on the hoist, and the other end of the wire rope is connected to a counterweight. The two wire ropes on the left and right sides are connected to the same counterweight.

8. The weldless counterweight elevator of claim 7, wherein, The base is provided with a counterweight bracket. There are two counterweight brackets, which are symmetrically positioned on the left and right. The supporting part of the counterweight bracket and the counterweight are located in the same vertical plane. When the counterweight is lowered to the lowest point, it will be placed on the counterweight bracket.

9. The weldless counterweight elevator of claim 5, wherein, The first chain drive mechanism includes a first driving sprocket, a first driven sprocket, and a first chain. The first driving sprocket is connected to the motor, the first driven sprocket is mounted on the first rotating shaft, and the first chain meshes with the first driving sprocket and the first driven sprocket. The second chain drive mechanism includes a second driving sprocket, a second driven sprocket, and a second chain. The second driving sprocket is mounted on a first rotating shaft, the second driven sprocket is mounted on a second rotating shaft, and the second chain meshes with the second driving sprocket and the second driven sprocket.

10. The weldless counterweight elevator of claim 1, wherein, The column is equipped with a limit switch.

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