Improved remote control type multi-terrain transport vehicle

Abstract

The utility model belongs to the technical field of vehicle equipment, and particularly relates to an improved remote control type multi-terrain transport vehicle which comprises a carriage body, a wheel carrier box and a transmission shaft, two walking wheels are installed on the outer side of the wheel carrier box, a chain wheel transmission mechanism is arranged in the wheel carrier box, and a connecting cylinder is arranged in the middle of the outer wall of the side, facing the carriage body, of the wheel carrier box. Limiting devices are arranged on the front portion and the rear portion of the wheel carrier box, the center of the connecting cylinder is parallel to a walking wheel rotating shaft, the connecting cylinder is rotatably installed on the carriage body, the transmission shaft is rotatably installed in the connecting cylinder, the chain wheel transmission mechanism comprises a driving gear and two driven gears, the driving wheel is connected with the output end of the transmission shaft, and the two driven gears are connected with the chain wheel. The driven gears are arranged in front of and behind the driving gear respectively, and the two walking wheels are connected with rotating shafts of the two driven gears respectively. The amplitude of the transmission mechanism is reduced, the strength of the transmission mechanism is improved, and the multi-terrain transport vehicle has the advantages of being simple in structure and reliable in work.

Description

Technical Field

[0001] This utility model belongs to the field of vehicle equipment technology, specifically referring to an improved remote-controlled multi-terrain transport vehicle. Background Technology

[0002] An improved remote-controlled multi-terrain transport vehicle is provided by Chinese Patent No. 2022228688154. See [link to patent details]. Figure 2 This vehicle is suitable for transporting goods in complex terrain, and its stable body ensures the safety of the transported goods. However, the vehicle uses multiple drive shafts and bushings as its transmission mechanism, which is complex in structure. The drive shafts are deployed along the forward (front-back) direction of the vehicle. When the vehicle travels on undulating terrain, the drive shafts swing significantly, resulting in a high failure rate of the transmission mechanism and affecting the transportation efficiency. Utility Model Content

[0003] The purpose of this utility model is to provide an improved remote-controlled multi-terrain transport vehicle with a simple structure and high reliability.

[0004] An improved remote-controlled multi-terrain transport vehicle includes a cargo box, wheel frame boxes mounted on both sides of the cargo box, and a drive shaft. The drive shaft is connected to a remotely controlled power mechanism inside the cargo box. Two wheels are mounted on the outer side of the wheel frame boxes. A sprocket drive mechanism is provided inside the wheel frame boxes. A connecting cylinder is provided in the middle of the outer wall of the wheel frame boxes facing the cargo box. Limiting devices are provided at the front and rear of the wheel frame boxes. The center of the connecting cylinder is parallel to the axis of rotation of the wheels. The connecting cylinder is rotatably mounted on the cargo box. The drive shaft is rotatably mounted inside the connecting cylinder. The power input end of the drive shaft is located inside the cargo box, and the power output end of the drive shaft is located inside the wheel frame boxes. The sprocket drive mechanism includes a driving gear and two driven gears. The driving gear is connected to the output end of the drive shaft. The driven gears are respectively deployed in front of and behind the driving gear. The driving gear transmits the power of the drive shaft to the two driven gears through a drive chain. The two wheels are respectively connected to the axis of rotation of the two driven gears.

[0005] Furthermore, the sprocket drive mechanism also includes a chain tensioning device, which comprises a clamping gear, a sliding frame, a guide rail, and an adjusting mechanism. The guide rail is perpendicular to the drive shaft and mounted on the inner wall of the wheel frame housing. The sliding frame is slidably mounted on the guide rail. The clamping gear is positioned on one side of the drive chain and rotatably mounted on one end of the sliding frame. The adjusting mechanism is mounted on the wheel frame housing to adjust the position of the sliding frame on the guide rail. During operation, the drive chain is fitted onto the clamping gear. The chain tensioning device helps to constrain chain movement, reduce chain sway, and make the sprocket drive mechanism more reliable.

[0006] Furthermore, the adjustment mechanism includes an adjustment screw, which is arranged parallel to the guide rail. One end of the adjustment screw is rotatably connected to the sliding frame. A matching nut is fitted on the adjustment screw, and the matching nut is fixedly installed on the wheel frame box. The other end of the adjustment screw is located outside the wheel frame box.

[0007] Furthermore, the clamping gear is positioned behind the drive gear.

[0008] Furthermore, the drive shaft is higher than the shaft of the driven gear.

[0009] Furthermore, two wheel frame boxes are installed on each of the left and right sides of the vehicle body along the front-to-back direction.

[0010] Furthermore, the side of the vehicle body is provided with a limiting block to restrict the pitch of the vehicle frame.

[0011] Furthermore, the power mechanism is a DC speed-regulating motor.

[0012] The aforementioned improved remote-controlled multi-terrain transport vehicle can have wheel frame boxes symmetrically installed on both sides of the vehicle body. Each wheel frame box has an independent remote-controlled power mechanism. During use, the drive shaft transmits power to the two wheels on the corresponding wheel frame box. The wheel frame box can rotate around the connecting cylinder. When encountering ditches or bumps, the two wheels connected to the wheel frame box adapt to the terrain changes by pitching, while the height of the connecting cylinder hardly changes, thus ensuring the stability of the vehicle body. When the front and rear wheels pitch, it does not affect the power input of the drive shaft to them. When the transport vehicle needs to turn, it can turn by controlling the different speeds of the wheels on both sides. When the speeds of the wheels on both sides are opposite, it can turn around on the spot.

[0013] Compared with the prior art, this utility model improves the transmission mechanism. Since both the transmission shaft and the sprocket shaft are perpendicular to the direction of movement, the amplitude of the transmission mechanism is reduced, which helps to increase the strength of the mechanism. This multi-terrain transport vehicle has the advantages of simple structure and reliable operation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram illustrating the connection relationship between the wheel frame box, sprocket drive mechanism, and drive shaft in an embodiment.

[0015] Figure 2 This is a schematic diagram of the existing improved remote-controlled multi-terrain transport vehicle.

[0016] In the diagram, 1. Wheel frame box; 1-1. Connecting cylinder; 1-2. Limiting plate; 2. Drive shaft; 3. Driving gear; 4. Driven gear; 5. Pressing gear; 6. Drive chain; 7. Traveling wheel; 8. Drive chain tensioning device; 8-1. Sliding frame; 8-2. Adjusting screw; 8-3. Guide rail. Detailed Implementation

[0017] The present invention will be described in detail below with reference to the embodiments.

[0018] See Figure 1 An improved remote-controlled multi-terrain transport vehicle includes a cargo box, wheel frame boxes 1 installed on both sides of the cargo box, and a drive shaft 2. The drive shaft 2 is connected to a remotely controlled DC speed-regulating motor inside the cargo box. Two wheels 7 are installed on the outer side of the wheel frame boxes 1. Two wheel frame boxes 1 are installed on each of the left and right sides of the cargo box along the front-to-back direction. Limiting blocks are provided on the sides of the cargo box to limit the pitch of the vehicle frame.

[0019] The wheel frame box 1 is equipped with a sprocket drive mechanism. A connecting cylinder 1-1 is located in the middle of the outer wall of the wheel frame box 1 facing the vehicle body. Limiting plates 1-2 corresponding to the limiting blocks are located at the front and rear of the wheel frame box 1. The center of the connecting cylinder 1-1 is parallel to the shaft of the traveling wheel 7. The connecting cylinder 1-1 is rotatably mounted on the vehicle body. The drive shaft 2 is rotatably mounted inside the connecting cylinder 1-1. The power input end of the drive shaft 2 is located inside the vehicle body, and the power output end of the drive shaft 2 is located inside the wheel frame box 1. The sprocket... The transmission mechanism includes a driving gear 3, two driven gears 4, and a transmission chain tensioning device. The driving gear is connected to the power output end of the transmission shaft 2. The driven gears 4 are respectively positioned in front of and behind the driving gear 3, with the shaft of the driven gear 4 lower than the transmission shaft 2. The transmission chain tensioning device 8 includes a clamping gear 5, a sliding frame 8-1, a guide rail 8-3, and an adjusting mechanism. The guide rail 8-3 is perpendicular to the transmission shaft 2 and installed on the inner wall of the wheel frame box 1. The sliding frame 8-1 is slidably mounted on the guide rail 8-3. The clamping gear 5 is positioned behind the drive gear 3, located on one side of the transmission chain 6, and rotatably mounted on one end of the sliding frame 8-1. The adjustment mechanism includes an adjusting screw 8-2, which is parallel to the guide rail 8-3. One end of the adjusting screw 8-2 is rotatably connected to the sliding frame 8-1, and a matching nut is fitted on the adjusting screw 8-2. The matching nut is fixedly mounted on the wheel frame box 1, and the other end of the adjusting screw 8-2 is located outside the wheel frame box 1. Rotating the adjusting screw 8-2 can adjust the position of the sliding frame 8-1 on the guide rail 8-3, thereby changing the position of the clamping gear 5 to achieve tensioning of the transmission chain 6. During operation, the transmission chain 6 is fitted onto the clamping gear 5. The setting of the transmission chain tensioning device helps to constrain the movement of the chain, reduce the sway of the transmission chain 6, and make the sprocket transmission mechanism work more reliably. The drive gear 3 transmits the power of the transmission shaft 2 to the two driven gears 4 through the transmission chain 6, and the two traveling wheels 7 are respectively connected to the rotating shafts of the two driven gears 4.

[0020] In this embodiment of the improved remote-controlled multi-terrain transport vehicle, the wheel frame box 1 is rotatably connected to the vehicle body via a connecting cylinder 1-1. The drive shaft 2 is installed in the connecting cylinder 1-1 and transmits power to the walking wheels 7 through a sprocket mechanism. Since all gear shafts and the drive shaft 2 are parallel to the shafts of the walking wheels 7, the swing amplitude of the moving parts is reduced when traveling on uneven roads compared to the prior art. The transmission mechanism of this utility model is more stable and reliable, and has the advantages of simple structure, stable operation, and low failure rate.

Claims

1. An improved remote-controlled multi-terrain transport vehicle, comprising a vehicle body, wheel frame boxes mounted on both sides of the vehicle body, and a drive shaft, wherein the drive shaft is connected to a remotely driven power mechanism inside the vehicle body, and two wheels are mounted on the outer side of the wheel frame boxes, characterized in that, The wheel frame box is equipped with a sprocket drive mechanism. A connecting cylinder is located in the middle of the outer wall of the wheel frame box facing the vehicle body. Limiting devices are provided at the front and rear of the wheel frame box. The center of the connecting cylinder is parallel to the shaft of the traveling wheel. The connecting cylinder is rotatably mounted on the vehicle body. The drive shaft is rotatably mounted inside the connecting cylinder. The power input end of the drive shaft is located inside the vehicle body, and the power output end of the drive shaft is located inside the wheel frame box. The sprocket drive mechanism includes one driving gear and two driven gears. The driving gear is connected to the output end of the drive shaft. The driven gears are respectively deployed in front of and behind the driving gear. The driving gear transmits the power of the drive shaft to the two driven gears through a drive chain. The two traveling wheels are respectively connected to the shafts of the two driven gears.

2. The improved remote-controlled multi-terrain transport vehicle according to claim 1, characterized in that, The sprocket drive mechanism also includes a drive chain tensioning device, which includes a clamping gear, a sliding frame, a guide rail, and an adjusting mechanism. The guide rail is perpendicular to the drive shaft and is installed on the inner wall of the wheel frame box. The sliding frame is slidably installed on the guide rail. The clamping gear is deployed on one side of the drive chain and rotatably installed at one end of the sliding frame. The adjusting mechanism is installed on the wheel frame box to adjust the position of the sliding frame on the guide rail. During operation, the drive chain is fitted onto the clamping gear.

3. The improved remote-controlled multi-terrain transport vehicle according to claim 2, characterized in that, The adjustment mechanism includes an adjustment screw, which is arranged parallel to the guide rail. One end of the adjustment screw is rotatably connected to the sliding frame. A matching nut is fitted on the adjustment screw and is fixedly installed on the wheel frame box. The other end of the adjustment screw is located outside the wheel frame box.

4. The improved remote-controlled multi-terrain transport vehicle according to claim 2, characterized in that, The clamping gear is located behind the drive gear.

5. The improved remote-controlled multi-terrain transport vehicle according to claim 1, characterized in that, The drive shaft is higher than the shaft of the driven gear.

6. The improved remote-controlled multi-terrain transport vehicle according to claim 1, characterized in that, Two wheel frame boxes are installed on each of the left and right sides of the carriage along the front-to-back direction.

7. The improved remote-controlled multi-terrain transport vehicle according to claim 1, characterized in that, The side of the vehicle body is equipped with a limiting block to restrict the pitch of the vehicle frame.

8. The improved remote-controlled multi-terrain transport vehicle according to claim 1, characterized in that, The power mechanism is a DC speed-regulating motor.

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