A protective screen handling aid

Abstract

This invention proposes a protective screen handling auxiliary device, comprising a pallet for carrying the protective screen, a handrail on one side of the pallet, and a baffle on the other side; two support plates are spaced apart on the lower surface of the pallet, and a half-shaft tube is fixedly mounted on each support plate. A portion of each half-shaft tube is located between the two support plates, and a portion is located outside the corresponding support plate. The ends of the two half-shaft tubes that are close to each other are connected to the housing of a differential. The differential is also connected to a travel motor with a braking function. Half-shafts are housed inside the half-shaft tubes, and the half-shafts are rotatably connected to the half-shaft tubes via bearings. The two half-shafts rotate under the action of the differential. The two half-shafts correspondingly drive two travel mechanisms to move on flat ground, and the two travel mechanisms synchronously go up / down stairs under the action of the two drive mechanisms. The above-mentioned protective screen handling auxiliary device can realize the transport of protective screens on flat ground and up / down stairs, and provides good support during the up / down stairs transport process, preventing slippage.

Description

Technical Field

[0001] This invention relates to the field of handling equipment technology, and in particular to a protective screen handling auxiliary device. Background Technology

[0002] In power grid systems, many devices require protective panels, which raises the issue of transporting these panels. Because protective panels are fragile, extra care must be taken during transport. Existing transport equipment can typically move protective panels on flat ground and up and down stairs. However, during the up / down process, the wheels are usually not kept in place, which can cause the wheels to fail to provide adequate support, potentially leading to tilting of the transport equipment and damage to the protective panel. Summary of the Invention

[0003] To address the problems existing in the prior art, this application proposes a protective screen handling auxiliary device.

[0004] To achieve the above objectives, this application proposes a protective screen handling auxiliary device, including a pallet for carrying the protective screen. One side of the pallet has a handrail, and the other side has a baffle for limiting the movement of the protective screen. Two support plates are spaced apart on the lower surface of the pallet. A half-shaft tube is fixedly mounted on each support plate, and both half-shaft tubes pass through the corresponding support plate. A portion of each half-shaft tube is located between the two support plates, and a portion is located outside the corresponding support plate. The ends of the two half-shaft tubes that are close to each other are connected to the housing of a differential. The differential is also connected to a travel motor with a braking function. A half-shaft is provided inside each half-shaft tube, and the half-shaft is rotatably connected to the corresponding half-shaft tube via a bearing. The two half-shafts can rotate at different speeds under the action of the differential. Each half-shaft extends to the outside of the corresponding support plate.

[0005] The protective screen handling auxiliary device also includes two walking mechanisms arranged in a mirror symmetry. The two half-shafts drive the two walking mechanisms to move on the flat ground. The structure of the walking mechanism is as follows: it includes three star wheels distributed in a triangle. On the side of the three star wheels near the support plate, there is a star wheel inner frame plate. The star wheel inner frame plate is rotatably connected to the corresponding half-shaft tube via bearings. On the side of the three star wheels away from the support plate, there is a star wheel outer frame plate. The star wheel outer frame plate forms a receiving cavity inside. A central gear is provided at the center of the receiving cavity. The central gear can rotate under the action of the half-shaft. The central gear meshes with three intermediate wheels arranged in the receiving cavity. The three intermediate wheels mesh with the three star wheel gears arranged in the receiving cavity one-to-one. When the central gear rotates, the three star wheel gears rotate. The three star wheel gears are connected to the three star wheels one-to-one to drive the star wheels to rotate. Each star wheel gear is fixedly connected to the corresponding star wheel via a connecting shaft. The two ends of each connecting shaft are rotatably connected to the star wheel outer frame plate and the star wheel inner frame plate via bearings.

[0006] The protective screen handling auxiliary device also includes two drive mechanisms for driving two walking mechanisms to go up / down stairs synchronously. The structure of each drive mechanism is as follows: it includes a sprocket and a stepping sleeve connected to each other. The stepping sleeve is fixedly connected to the corresponding star wheel inner frame plate. The sprocket is rotatably connected to the corresponding half shaft tube via a bearing. The sprocket is connected to the chain drive wheel via a chain. The chain drive wheel in the two drive mechanisms is controlled by the same stepping motor with a braking function so that the two walking mechanisms go up / down stairs synchronously. The stepping motor with a braking function is set on the lower surface of the cart.

[0007] The protective screen handling aid also includes a sensor for sensing whether it has moved to the stair steps. The sensor is mounted on the support plate and connected to a controller. The controller is mounted on the lower surface of the chassis and is also connected to a battery, a walking motor with braking function, a stepping motor with braking function, and a control handle mounted on the handrail.

[0008] In some embodiments, the sensor is a laser sensor.

[0009] The beneficial effect of this solution is that the above-mentioned protective screen handling auxiliary device can realize the handling of the protective screen on flat ground and up and down stairs. During the up and down stairs handling process, by controlling the walking motor with braking function to stop rotating and brake it, the star wheel can stop rotating on its own. Thus, during the up and down stairs process, one of the star wheels can play a good supporting role and will not slip. Attached Figure Description

[0010] Figure 1A schematic diagram of the protective screen handling auxiliary device in the embodiment is shown.

[0011] Reference numerals: 1-Handrail, 2-Disc, 3-Battery, 4-Support plate, 5-Star wheel outer frame plate, 6-Star wheel inner frame plate, 7-Laser sensor, 8-Half shaft tube, 9-Walking motor with brake function, 10-Differential gear, 11-Half shaft, 12-Sprocket, 13-Stepping sleeve, 14-Star wheel gear, 15-Intermediate wheel, 16-Center gear, 17-Star wheel, 18-Chain, 19-Chain drive wheel, 20-Stepping motor shaft, 21-Stepping motor with brake function, 22-Controller, 23-Control handle, 24-Baffle. Detailed Implementation

[0012] The specific embodiments of this application will be further described below with reference to the accompanying drawings.

[0013] In the description of this application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0014] like Figure 1 As shown, the protective screen handling auxiliary device involved in this application includes a pallet 2 for carrying the protective screen. A handrail 1 is provided on one side of the pallet 2, and a baffle 24 is provided on the other side of the pallet 2 for limiting the position of the protective screen. Two support plates 4 are also provided at intervals on the lower surface of the pallet 2. A half-shaft tube 8 is fixedly provided on each support plate 4, and the two half-shaft tubes 8 pass through the corresponding support plate 4. A part of each half-shaft tube 8 is located between the two support plates 4, and a part is located outside the corresponding support plate 4. The two half-shaft tubes 8 are connected to the housing of a differential 10 at their closest points. The differential 10 is also connected to a travel motor 9 with a braking function. A half-shaft 11 is provided in each half-shaft tube 8. The half-shaft 11 is rotatably connected to the corresponding half-shaft tube 8 via a bearing. The two half-shafts 11 can rotate at different speeds under the action of the differential 10. Each half-shaft 11 extends to the outside of the corresponding support plate 4.

[0015] The protective screen handling auxiliary device also includes two walking mechanisms arranged in a mirror-symmetrical configuration. Two half-shafts 11 drive the two walking mechanisms to move on flat ground. Specifically, the structure of the walking mechanism is as follows: it includes three star wheels 17 arranged in a triangle. An inner star wheel frame plate 6 is provided on the side of the three star wheels 17 closest to the support plate 4. The inner star wheel frame plate 6 is rotatably connected to the corresponding half-shaft tube 8 via bearings. An outer star wheel frame plate 5 is provided on the side of the three star wheels 17 away from the support plate 4. An accommodating cavity is formed inside the outer star wheel frame plate 5. A central gear 16 is provided at the center of the accommodating cavity. The central gear 16 can rotate under the action of the half-shafts 11 (specifically, the half-shafts 11 pass through the...). After the inner frame plate 6 of the star wheel is inserted, the outer frame plate 5 of the star wheel extends into it. The central gear 16 meshes with three intermediate wheels 15 disposed in the accommodating cavity (specifically, each intermediate wheel 15 is rotatably connected to the outer frame plate 5 of the star wheel via a rotating shaft). The three intermediate wheels 15 are respectively meshed with three star wheel gears 14 disposed in the accommodating cavity. When the central gear 16 rotates, the three star wheel gears 14 rotate. The three star wheel gears 14 are connected to three star wheels 17 in a corresponding manner to drive the star wheels 17 to rotate. Each star wheel gear 14 is fixedly connected to the corresponding star wheel 17 via a connecting shaft. The two ends of each connecting shaft are rotatably connected to the outer frame plate 5 and the inner frame plate 6 of the star wheel via bearings.

[0016] To enable the function of moving up and down stairs, the protective screen handling auxiliary device also includes two drive mechanisms for driving the two walking mechanisms to move up and down stairs synchronously. Each drive mechanism has the following structure: it includes a sprocket 12 and a stepping sleeve 13 connected together. The stepping sleeve 13 is fixedly connected to the corresponding star wheel inner frame plate 6. The sprocket 12 is rotatably connected to the corresponding half-shaft tube 8 via a bearing. The sprocket 12 is connected to a chain drive wheel 19 via a chain 18. The chain drive wheel 19 is controlled by a stepping motor 21 with a braking function. In this embodiment, the chain drive wheels 19 in both drive mechanisms are controlled by the same stepping motor 21 with a braking function to ensure that the two walking mechanisms move up and down stairs synchronously. Specifically, the stepping motor 21 with a braking function is located on the lower surface of the cart 2, and the two chain drive wheels 19 are connected to the stepping motor shaft 20.

[0017] The protective screen handling auxiliary device also includes a laser sensor 7 for sensing whether it has moved to the stair steps. The laser sensor 7 is mounted on the support plate 4 and is connected to a controller 22. The controller 22 is mounted on the lower surface of the pallet 2 and is also connected to a battery 3, a walking motor 9 with a braking function, a stepping motor 21 with a braking function, and a control handle 23 mounted on the handrail 1.

[0018] In practical use, the protective screen is fixed on the chassis 2. The control handle 23 is operated, and the control handle 23 transmits a signal to the controller 22. The controller 22 triggers the walking motor 9 with braking function to operate, causing the two half-shafts 11 to rotate under the action of the differential 10, thereby driving the corresponding central gear 16 to rotate. Under the action of the central gear 16, the corresponding star gear 14 can drive the star wheel 17 to rotate, so as to achieve movement on flat ground. When moving to a step, the laser sensor 7 detects the movement and transmits a signal to the controller 22. The controller 22 controls the walking motor 9 with braking function to stop rotating and brake it. At the same time, it controls the stepping motor 21 with braking function to operate, so that the sprocket 12 drives the stepping sleeve 13 to rotate, thereby causing the inner frame plate 6 of the star wheel to rotate, realizing the position change of the three star wheels 17, and achieving the climbing / climbing of the stairs.

[0019] The control theory involved in this application is a commonly used control theory in the prior art. For example, the control handle 23 transmits a signal to the controller 22, the controller 22 triggers the walking motor 9 with braking function to move, the laser sensor 7 detects the movement and transmits the signal to the controller 22, the controller 22 controls the walking motor 9 with braking function to stop rotating and brake it, and at the same time controls the stepping motor 21 with braking function to move, etc., which will not be elaborated here.

[0020] The protective screen handling auxiliary device involved in this application can realize the handling of the protective screen on flat ground and up and down stairs. During the up and down stairs handling process, by controlling the walking motor with braking function to stop rotating and brake it, the star wheel can stop rotating on its own. Thus, during the up and down stairs process, one of the star wheels can play a good supporting role and will not slip.

[0021] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. A protective screen handling auxiliary device, characterized in that: The system includes a chassis for supporting a protective screen. One side of the chassis has a handrail, and the other side has a baffle for limiting the position of the protective screen. Two support plates are spaced apart on the lower surface of the chassis. A half-shaft tube is fixedly mounted on each support plate, and both half-shaft tubes pass through the corresponding support plate. A portion of each half-shaft tube is located between the two support plates, and a portion is located outside the corresponding support plate. The ends of the two half-shaft tubes that are close to each other are connected to the housing of a differential. The differential is also connected to a travel motor with a braking function. A half-shaft is located inside each half-shaft tube, and the half-shaft is rotatably connected to the corresponding half-shaft tube via a bearing. The two half-shafts can rotate at different speeds under the action of the differential. Each half-shaft extends to the outside of the corresponding support plate. The protective screen handling auxiliary device also includes two walking mechanisms arranged in a mirror symmetry. The two half-shafts drive the two walking mechanisms to move on the flat ground. The structure of the walking mechanism is as follows: it includes three star wheels distributed in a triangle. On the side of the three star wheels near the support plate, there is a star wheel inner frame plate. The star wheel inner frame plate is rotatably connected to the corresponding half-shaft tube via bearings. On the side of the three star wheels away from the support plate, there is a star wheel outer frame plate. The star wheel outer frame plate forms a receiving cavity inside. A central gear is provided at the center of the receiving cavity. The central gear can rotate under the action of the half-shaft. The central gear meshes with three intermediate wheels arranged in the receiving cavity. The three intermediate wheels mesh with the three star wheel gears arranged in the receiving cavity one-to-one. When the central gear rotates, the three star wheel gears rotate. The three star wheel gears are connected to the three star wheels one-to-one to drive the star wheels to rotate. Each star wheel gear is fixedly connected to the corresponding star wheel via a connecting shaft. The two ends of each connecting shaft are rotatably connected to the star wheel outer frame plate and the star wheel inner frame plate via bearings. The protective screen handling auxiliary device also includes two drive mechanisms for driving two walking mechanisms to go up / down stairs synchronously. The structure of each drive mechanism is as follows: it includes a sprocket and a stepping sleeve connected to each other. The stepping sleeve is fixedly connected to the corresponding star wheel inner frame plate. The sprocket is rotatably connected to the corresponding half shaft tube via a bearing. The sprocket is connected to the chain drive wheel via a chain. The chain drive wheel in the two drive mechanisms is controlled by the same stepping motor with a braking function so that the two walking mechanisms go up / down stairs synchronously. The stepping motor with a braking function is set on the lower surface of the cart. The protective screen handling aid also includes a sensor for sensing whether it has moved to the stair steps. The sensor is a laser sensor and is mounted on the support plate. The sensor is connected to a controller, which is located on the lower surface of the chassis. The controller is also connected to a battery, a walking motor with braking function, a stepping motor with braking function, and a control handle mounted on the handrail.

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