Lifting module of carrying device

Abstract

The utility model belongs to the technical field of storage equipment, and particularly relates to a lifting module of a carrying device, compared with the prior art, a lifting structure similar to a jack is formed by replacing an existing lifting mechanism driven by a chain with a modularized lifting module, and the lifting module is simple in structure and convenient to use. Synchronous unfolding and folding of the first shear type lifting element and the second shear type lifting element are controlled through translation of the connecting rod, for example, when the connecting rod translates forwards, the first drive arm, the second drive arm, the third drive arm and the fourth drive arm are driven to swing around hinge points of the drive arms respectively, and the shear type lifting elements are folded in the horizontal direction; when the connecting rods translate backwards, the shear type lifting elements are unfolded in the horizontal direction and folded in the longitudinal direction to achieve ascending, when the connecting rods translate backwards, the shear type lifting elements are unfolded in the horizontal direction and folded in the longitudinal direction to achieve descending, the lifting speed is higher, the stability is better, the bearing capacity is higher, the service life is longer, and the modular lifting module is more convenient to mount and dismount.

Description

Technical Field

[0001] The utility model belongs to the technical field of storage equipment, in particular to a lifting module of a handling device. Background Art

[0002] In modern logistics and warehousing systems, handling devices are often used to transfer goods, such as four-way shuttles and AGVs. For the former, the four-way shuttle is a handling device that can move freely on a grid-distributed track. It is equipped with two sets of wheels, one for traveling in the X direction and the other for traveling in the Y direction. When it reaches an intersection and needs to turn, it automatically turns by switching the wheel sets to change the direction of travel, thereby achieving accurate arrival at the cargo storage point and automatic handling and storage operations. Existing handling devices are usually equipped with a lifting mechanism for lifting goods. Some lifting mechanisms use chains as their main transmission components. However, after long-term use and once the cargo load is too heavy, the chain is prone to breakage, and it cannot work normally. Summary of the Invention

[0003] The purpose of the utility model is to overcome the shortcomings of the lifting mechanism of the existing handling device that uses a chain as a transmission component and is prone to breakage, and to provide a lifting module that uses a connecting rod to drive the lifting of a scissor-type lifting element to improve the carrying capacity and life of the lifting module.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A lifting module of a handling device includes a drive device, a screw rod, a nut seat, a connecting rod, a first scissor-type lifting element with adjustable angles, and a second scissor-type lifting element. The drive device is equipped with a rotatable output shaft. The screw rod is drivingly connected to the output shaft and driven to rotate by the drive device. The nut seat cooperates with the screw rod. The drive device is fixedly connected to the connecting rod. The first scissor-type lifting element is composed of a first driving arm and a second driving arm hinged at the middle. The second scissor-type lifting element is composed of a third driving arm and a fourth driving arm hinged at the middle.

[0006] The lower end of the first driving arm is hinged to the head end of the connecting rod, and the upper end of the first driving arm extends obliquely upward in a direction away from the connecting rod; the lower end of the third driving arm is hinged to the end of the connecting rod, and the upper end of the third driving arm extends obliquely upward in a direction close to the first scissor-type lifting element. The angle between the first driving arm and the second driving arm and the angle between the third driving arm and the fourth driving arm change with the translation of the connecting rod, thereby controlling the first scissor-type lifting element and the second scissor-type lifting element to expand or close synchronously.

[0007] Furthermore, two connecting rods are relatively arranged, and the driving device, the screw rod, and the nut seat are respectively arranged between the two connecting rods; the driving device is fixedly connected to the connecting rod through a fixed seat, and the fixed seat includes a sleeve portion sleeved on the outer periphery of the output shaft, and the opposite sides of the sleeve portion are constructed with connecting portions fixedly connected to the corresponding connecting rod, and the end of the sleeve portion is fixedly connected to the driving device.

[0008] Furthermore, two first driving arms are provided, the lower ends of which are hinged to corresponding connecting rods respectively, and the second driving arm is hinged between the two first driving arms.

[0009] Furthermore, two third driving arms are provided, and the lower ends of the third driving arms are hinged to the corresponding connecting rods respectively, and the fourth driving arm is hinged between the two third driving arms.

[0010] Furthermore, the upper ends of the first driving arm and the third driving arm are respectively hinged with a first assembly part for fixedly connecting to the first external connecting surface, and the lower ends of the second driving arm and the fourth driving arm are respectively hinged with a second assembly part for fixedly connecting to the second external connecting surface.

[0011] Furthermore, the upper end of the first assembly part is configured with an upper protrusion, the lower end of the second assembly part is configured with a first lower protrusion; and the lower end of the nut seat is configured with a second lower protrusion.

[0012] Compared with the prior art, the present invention adopts a modular lifting module to replace the existing lifting mechanism with chain drive, thereby forming a lifting structure similar to a jack, and uses the translation of the connecting rod to control the synchronous expansion and closing of the first scissor-type lifting element and the second scissor-type lifting element. For example, when the connecting rod translates forward, the first driving arm and the second driving arm, the third driving arm and the fourth driving arm are driven to swing around their hinge points respectively, so that the scissor-type lifting elements are closed in the horizontal direction and expanded in the longitudinal direction to achieve ascent. When the connecting rod translates backward, the scissor-type lifting elements are expanded in the horizontal direction and closed in the longitudinal direction to achieve descent. The present invention has a faster lifting speed, better stability, stronger bearing capacity, and longer service life, and the modular lifting module is also more convenient to install and disassemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 and Figure 2 It is a three-dimensional diagram of the lifting module;

[0014] Figure 3 It is a structural diagram of the fixed seat;

[0015] Figure 4 This is a cross-sectional view of the lifting module when assembled on the four-way shuttle. DETAILED DESCRIPTION

[0016] The specific implementation of the present utility model is described below with reference to the accompanying drawings.

[0017] See also Figure 1 、 Figure 2 and Figure 4 This embodiment provides a lifting module of a handling device, including a driving device 1, a screw rod 2, a nut seat 3, a connecting rod 4, a first scissor-type lifting element 5 with adjustable angles, and a second scissor-type lifting element 6. The driving device 1 is equipped with a rotatable output shaft 11, the screw rod 2 is transmission-connected to the output shaft 11 and driven to rotate by the driving device 1, the nut seat 3 cooperates with the screw rod 2, and the driving device 1 is fixedly connected to the connecting rod 4. The first scissor-type lifting element 5 is composed of a first driving arm 51 and a second driving arm 52 hinged at the middle, and the second scissor-type lifting element 6 is composed of a third driving arm 61 and a fourth driving arm 62 hinged at the middle.

[0018] The lower end of the first driving arm 51 is hinged to the head end of the connecting rod 4, and the upper end thereof extends obliquely upward in a direction away from the connecting rod 4; the lower end of the third driving arm 61 is hinged to the end of the connecting rod 4, and the upper end thereof extends obliquely upward in a direction close to the first scissor-type lifting element 5. The angle between the first driving arm 51 and the second driving arm 52, and the angle between the third driving arm 61 and the fourth driving arm 62 change with the translation of the connecting rod 4, thereby controlling the first scissor-type lifting element 5 and the second scissor-type lifting element 6 to expand or close synchronously.

[0019] See also Figure 1 and Figure 2 In a specific embodiment, two connecting rods 4 are relatively arranged, and the driving device 1, the screw rod 2, and the nut seat 3 are respectively arranged between the two connecting rods 4. The arrangement of two connecting rods 4 can improve the strength of the lifting module.

[0020] See also Figures 1 to 4 The driving device 1 is fixedly connected to the connecting rod 4 through a fixing seat 7. The fixing seat 7 includes a sleeve portion 71 sleeved on the outer periphery of the output shaft 11. The opposite sides of the sleeve portion 71 are constructed with connecting portions 72 fixedly connected to the connecting rod 4 on the corresponding side. The end of the sleeve portion 71 is fixedly connected to the driving device 1. The provision of the fixing seat 7 can improve the stability and coaxiality of the screw rod 2 and the output shaft 11.

[0021] A bearing 73 is mounted between the output shaft 11 and the sleeve portion 71 . The bearing 73 can make the output shaft 11 rotate more smoothly.

[0022] The upper side wall of the shaft sleeve portion 71 is provided with a hollow area 74 , and the above arrangement can achieve weight reduction.

[0023] An assembly groove 41 is constructed on the upper side of the connecting rod 4 corresponding to the connecting portion 72, and the lower end of the connecting portion 72 is snapped into the assembly groove 41. The above arrangement can make the fit between the fixing seat 7 and the connecting rod 4 more stable, and also plays a role in positioning and assembly.

[0024] See also Figure 1 and Figure 2 In one specific embodiment, two first driving arms 51 are provided, and their lower ends are respectively hinged to corresponding connecting rods 4. The second driving arm 52 is hinged between the two first driving arms 51. Two third driving arms 61 are provided, and their lower ends are respectively hinged to corresponding connecting rods 4. The fourth driving arm 62 is hinged between the two third driving arms 61. This arrangement can improve the strength and load-bearing capacity of the lifting module.

[0025] See also Figure 1 、 Figure 2 and Figure 4 In a specific embodiment, the upper ends of the first driving arm 51 and the third driving arm 61 are respectively hinged with a first assembly part 81 for fixed connection to the first external connecting surface 101, and the lower ends of the second driving arm 52 and the fourth driving arm 62 are respectively hinged with a second assembly part 82 for fixed connection to the second external connecting surface 102. The above-mentioned first assembly part 81 and second assembly part 82 can realize the rapid assembly of the lifting module.

[0026] The upper end of the first assembly part 81 is constructed with an upper protrusion 811, the lower end of the second assembly part 82 is constructed with a first lower protrusion 821, and the lower end of the nut seat 3 is constructed with a second lower protrusion 31. The above arrangement can improve the stability of the lifting module and the first external connecting surface 101 and the second external connecting surface 102.

[0027] like Figure 4 As shown, the following provides a specific embodiment of a lifting module applied to a four-way shuttle. The four-way shuttle includes an upper body 001, a lower body 002 and a support platform 003. The lifting module of the present invention is installed on the upper body 001. Specifically, the second assembly part 82 is connected to the upper body 001 (that is, the second external connection surface 102 of the present invention), and the first assembly part 81 is connected to the support platform 003 (that is, the first external connection surface 101 of the present invention). Figure 4As shown, when lifting is required, the connecting rod 4 is translated to the left, and the upper and lower angles between the first driving arm 51 and the second driving arm 52, and between the third driving arm 61 and the fourth driving arm 62 are reduced, driving the first scissor-type lifting element 5 and the second scissor-type lifting element 6 to increase in height, and the support platform 003 rises. On the contrary, when descending is required, the connecting rod 4 is translated to the right, and the upper and lower angles are increased, driving the first scissor-type lifting element 5 and the second scissor-type lifting element 6 to decrease in height, and the support platform descends.

[0028] Compared with the prior art, the present invention adopts a modular lifting module to replace the existing lifting mechanism with chain drive, thereby forming a lifting structure similar to a jack, and uses the translation of the connecting rod 4 to control the synchronous expansion and closing of the first scissor-type lifting element 5 and the second scissor-type lifting element 6. For example, when the connecting rod 432 translates forward, the first driving arm 51 and the second driving arm 52, the third driving arm 61 and the fourth driving arm 62 are driven to swing around their hinge points respectively, so that the scissor-type lifting elements are closed in the horizontal direction and expanded in the longitudinal direction to achieve ascent. When the connecting rod 4 translates backward, the scissor-type lifting elements are expanded in the horizontal direction and closed in the longitudinal direction to achieve descent. The lifting speed of the present invention is faster, the stability is better, the bearing capacity is stronger, and the service life is longer, and the modular lifting module is also more convenient to install and disassemble.

[0029] Based on the disclosure and teachings of the above description, those skilled in the art may also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and any modifications and variations of the present invention should also fall within the scope of protection of the claims of the present invention. In addition, although certain specific terms are used in this description, these terms are for convenience of description only and do not constitute any limitation to the present invention.

Claims

1. A lifting module of a handling device, characterized in that: include: A drive device (1) is provided with a rotatable output shaft (11); a screw rod (2) drivingly connected to the output shaft (11) and driven to rotate by the driving device (1); a nut seat (3) cooperating with the screw rod (2); a connecting rod (4) fixedly connected to the driving device (1); A first scissor-type lifting element (5) and a second scissor-type lifting element (6) with adjustable included angles, wherein the first scissor-type lifting element (5) is composed of a first driving arm (51) and a second driving arm (52) hinged at the middle, and the second scissor-type lifting element (6) is composed of a third driving arm (61) and a fourth driving arm (62) hinged at the middle; The lower end of the first driving arm (51) is hinged to the head end of the connecting rod (4), and the upper end thereof extends obliquely upward in a direction away from the connecting rod (4); the lower end of the third driving arm (61) is hinged to the end of the connecting rod (4), and the upper end thereof extends obliquely upward in a direction close to the first scissor-type lifting element (5); the angle between the first driving arm (51) and the second driving arm (52), and the angle between the third driving arm (61) and the fourth driving arm (62) change with the translation of the connecting rod (4), thereby controlling the first scissor-type lifting element (5) and the second scissor-type lifting element (6) to be synchronously expanded or closed.

2. The lifting module according to claim 1, characterized in that: Two connecting rods (4) are arranged relatively to each other, and the driving device (1), the screw rod (2), and the nut seat (3) are respectively arranged between the two connecting rods (4).

3. The lifting module according to claim 2, characterized in that: The driving device (1) is fixedly connected to the connecting rod (4) via a fixing seat (7), wherein the fixing seat (7) comprises a sleeve portion (71) sleeved on the periphery of the output shaft (11), and connecting portions (72) fixedly connected to the connecting rod (4) on the corresponding side are constructed on opposite sides of the sleeve portion (71), and the end of the sleeve portion (71) is fixedly connected to the driving device (1).

4. The lifting module according to claim 3, characterized in that: A bearing (73) is assembled between the output shaft (11) and the shaft sleeve portion (71).

5. The lifting module according to claim 3, characterized in that: The upper side wall of the shaft sleeve portion (71) is provided with a hollow area (74).

6. The lifting module according to claim 3, characterized in that: An assembly groove (41) is formed on the upper side of the connecting rod (4) corresponding to the connecting portion (72), and the lower end of the connecting portion (72) is snapped into the assembly groove (41).

7. The lifting module according to claim 2, characterized in that: Two first driving arms (51) are provided, and the lower ends of the first driving arms (51) are respectively hinged to the corresponding connecting rods (4), and the second driving arm (52) is hinged between the two first driving arms (51); And / or, two third driving arms (61) are provided, the lower ends of which are respectively hinged to the corresponding connecting rods (4), and the fourth driving arm (62) is hinged between the two third driving arms (61).

8. The lifting module according to claim 1, characterized in that: The upper ends of the first driving arm (51) and the third driving arm (61) are respectively hinged with a first assembly part (81) for fixed connection to the first external connection surface (101), and the lower ends of the second driving arm (52) and the fourth driving arm (62) are respectively hinged with a second assembly part (82) for fixed connection to the second external connection surface (102).

9. The lifting module according to claim 8, characterized in that: The upper end of the first assembly part (81) is configured with an upper protrusion (811), and the lower end of the second assembly part (82) is configured with a first lower protrusion (821).

10. The lifting module according to claim 8, characterized in that: The lower end of the nut seat (3) is formed with a second lower protrusion (31).

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