CN219467470U - Obstacle surmounting wheel set and trolley - Google Patents

Abstract

The utility model discloses an obstacle crossing wheel set, which comprises wheels, wheel shafts and wheel frames, wherein at least two wheel shafts are arranged in parallel front and back along the longer direction of the wheel frames, at least one wheel is arranged at the outer end of each wheel shaft, and the wheels and the wheel shafts synchronously rotate. The inner end of the wheel shaft is rotationally connected with the wheel frame through a bearing. The utility model also provides a trolley, which comprises a trolley frame, wherein obstacle crossing trolley wheel sets are respectively arranged on two sides of the bottom of the trolley frame. Still include actuating mechanism and transaxle, the transaxle both ends are equipped with the semi-axis sleeve, frame and semi-axis sleeve fixed connection, and the semi-axis sleeve rotates with the wheel frame to be connected. The driving wheel shaft is used as a half shaft of the driving axle to penetrate through the half shaft sleeve. The frame and the half shaft sleeve rotate synchronously by taking the driving wheel shaft as an axis, and the wheel frame can rotate relative to the frame. The wheel frame can drive the wheel shaft to rotate as an axis, and when the wheel frame encounters an obstacle or a ditch slope, the wheel frame can easily turn over, so that more complex terrains can be coped with.

Description

Obstacle surmounting wheel set and trolley

Technical Field

The utility model relates to a transport device, in particular to a trolley.

Background

The trolley is a common transportation device in daily life and industrial production, and the common trolley is three-wheeled, but is somewhat laborious to use for application environments with complex terrain and large loading. Firstly, the capability of coping with complex terrains is that a common trolley is provided with only one wheel on the same side, and when the trolley runs on complex terrains, the climbing capability and obstacle crossing capability are very poor. Secondly, if heavy goods are required to be transported, the goods are very hard to push and pull even in gentle terrain. Let alone the ability to cope with obstacles on complex terrain.

Disclosure of Invention

In order to overcome the defects, the utility model provides an obstacle surmounting wheel set which can be applied to a trolley.

The utility model is realized by the following technical scheme:

the obstacle crossing wheel set comprises wheels, wheel shafts and wheel frames, wherein at least two wheel shafts are arranged in parallel along the longer direction of the wheel frames, at least one wheel is arranged at the outer end of each wheel shaft, and the wheels and the wheel shafts synchronously rotate.

The inner end of the wheel shaft is rotationally connected with the wheel frame through a bearing.

The middle part of the wheel frame is provided with a driving wheel, a driving wheel shaft of the driving wheel is rotationally connected with the wheel frame through a bearing, and the driving wheel shaft synchronously rotate.

Each wheel axle is respectively provided with a transmission piece, the wheel axles and the transmission pieces synchronously rotate, and the transmission pieces are in transmission connection with the driving wheels.

The transmission part and the driving wheel in the technical scheme are gears, and the transmission part and the driving wheel are connected through chain transmission.

Furthermore, the number of the wheel shafts in the technical scheme is two, the driving wheel shafts are positioned in the middle between the wheel shafts, and the horizontal height of the driving wheel shafts is greater than that of the wheel shafts.

A tensioning wheel is arranged between the transmission part and the driving wheel, and the tensioning wheel is externally meshed with the chain.

As the improvement of this technical scheme, the wheel frame is closed box formula structure, and the wheel frame includes interior box and outer box, transmission spare and drive wheel locate outer box, the bearing of wheel axle and drive shaft is located interior box.

The bearings of the wheel shaft and the driving wheel shaft are a pair and are respectively sleeved at the inner ends of the wheel shaft and the driving wheel shaft in parallel. The parallel bearings can improve the bearing capacity of the wheel shaft and the driving wheel shaft, and the closed box type wheel frame is selected, so that the parallel bearings are provided with installation space and bearing structure, and the bearings, the transmission parts, the driving wheels and the chains are protected from being polluted or damaged by the surrounding environment.

The utility model also provides a trolley which comprises a trolley frame, wherein the two sides of the bottom of the trolley frame are respectively provided with the obstacle crossing trolley wheel set.

The cart also comprises a driving mechanism and a driving axle, wherein the driving mechanism is in transmission connection with a differential mechanism in the middle of the driving axle. The two ends of the drive axle are provided with half-axle sleeves, the frame is fixedly connected with the half-axle sleeves, and the half-axle sleeves are rotationally connected with the wheel frame. The driving wheel shaft is used as a half shaft of the driving axle to penetrate through the half shaft sleeve.

The frame and the half shaft sleeve rotate synchronously by taking the driving wheel shaft as an axis, and the wheel frame can rotate relative to the frame.

The wheel frame can drive the wheel shaft to rotate as an axis, and when the wheel frame encounters an obstacle or a ditch slope, the wheel frame can easily turn over, so that more complex terrains can be coped with.

The driving mechanism can be a motor, and can provide power assistance for the driving process of the cart, so that the cart is more labor-saving to use.

Furthermore, a traction device is arranged at the front end of the frame of the trolley and comprises traction wheels, a traction handle and a trailer connector, wherein the traction wheels and the traction handle can coaxially and synchronously rotate, and the travelling direction is more flexible and convenient to adjust.

The traction device of the cart is detachably connected with the frame. The common connection structure mode of the sleeve and the sleeve rod can be selected, so that the traction device can be detached, and the distance between the traction device and the frame can be lengthened or shortened.

The traction device is arranged, so that the use mode of the cart is widened, and the cart can be manually towed or the cart, and can also be towed to walk after being connected with a trailer connector by utilizing other motor vehicles with tractors.

Drawings

FIG. 1 is a schematic view of the overall structure of the obstacle surmounting wheel set of the present utility model.

Fig. 2 is a schematic view (outside) of the internal structure of the obstacle-surmounting wheel set of the present utility model.

Fig. 3 is a schematic view (inner side) of the inner structure of the obstacle-surmounting wheel set according to the present utility model.

Fig. 4 is a schematic view (partially cut-away) of a wheel carrier according to the present utility model.

Fig. 5 is a schematic diagram of a wheel frame structure (partially cut-away) according to the present utility model.

FIG. 6 is a schematic view of the structure of the outer casing of the wheel frame of the present utility model.

Fig. 7 is a schematic diagram of the inner box structure of the wheel frame of the present utility model.

Fig. 8 is a schematic diagram of the inner box structure of the wheel frame of the present utility model.

Fig. 9 is a schematic diagram of the overall structure of the cart according to the present utility model.

Fig. 10 is a schematic diagram of a driving axle structure of a cart according to the present utility model.

Fig. 11 is a schematic diagram of a frame structure of a cart according to the present utility model.

Fig. 12 is a schematic bottom view of a cart frame according to the present utility model.

Fig. 13 is a schematic structural view of a cart traction device according to the present utility model.

Detailed Description

As shown in fig. 1, the obstacle detouring wheel set 100 of the present utility model comprises a wheel 101, a wheel axle 102 and a wheel carrier 103. At least two wheel axles 102 are provided, and are juxtaposed in the longitudinal direction of the wheel frame 103.

At least one wheel 101 is arranged at the outer end of each wheel shaft 102, the wheel 101 rotates synchronously with the wheel shafts 102, and the inner end of each wheel shaft 102 is rotationally connected with a wheel frame 103 through a bearing 104.

The wheel 101 is provided at the outer end of the wheel shaft 102, the wheel 101 rotates synchronously with the wheel shaft 102, and the inner end of the wheel shaft 102 is rotatably connected with the wheel frame 103 through the bearing 103.

The more wheels are used for carrying, the greater the number of wheels, the greater the overall carrying capacity. At least one wheel 101 is provided for each wheel axle 102, and in order to obtain a greater bearing capacity, in this embodiment, two wheel axles 102 are provided, two wheels 101 are provided on the outer end of each wheel axle 102, and are juxtaposed along the wheel axle 102.

Referring to fig. 2 and 3, a driving wheel 105 is provided in the middle of the wheel frame 103, a driving wheel shaft 106 of the driving wheel 105 is rotatably connected to the wheel frame 103 through a bearing 104', and the driving wheel 105 rotates synchronously with the driving wheel shaft 106.

As also shown in fig. 2 and 3, a transmission 107 is provided on each wheel axle 102, and the wheel axles 102 rotate in synchronism with the transmission 107.

The wheel axle 102 rotates synchronously with the wheel 101 and the transmission member 107, so the wheel axle 102 is fixedly connected with the wheel 101 and the wheel axle 102 and the transmission member 107.

The transmission 107 is in driving connection with the driving wheel 105 and transmits the power of the driving wheel axle 106 to the wheel axle 102. As shown in fig. 2, in this embodiment, the transmission member 107 and the driving wheel 105 are gears, and the transmission member 107 and the driving wheel 105 are in transmission connection through a chain 108.

In this embodiment, the driving wheel shafts 106 are located in the middle between the wheel shafts 102, and the wheel shafts 102 are symmetrically distributed, as shown in fig. 2, where the driving wheel shafts 106 are located at a level greater than the level of the wheel shafts 102.

Referring to fig. 2 and 4, a tensioner 109 is provided between the transmission member 107 and the driving wheel 105, and the tensioner 109 is externally engaged with the chain 108. The tensioner 109 is also a gear, and the tensioner with a bracket can be purchased directly from the market and is fixed on the wheel frame by bolts.

In this embodiment, the wheel frame 103 is a closed box structure, and as shown in fig. 4 and 5, the wheel frame 103 includes an inner box 110 and an outer box 111, the transmission member 107, the driving wheel 105, the chain 108, and the tension wheel 109 are all disposed in the outer box 111, and the bearing 104 of the wheel axle 102 and the bearing 104' of the driving wheel axle 106 are disposed in the inner box 110.

The structure of the box type of the wheel frame 103 provides enough space, the wheel shaft 102 can be a cantilever shaft structure common in the prior art, the bearing at the inner end of the wheel shaft 102 can be a cantilever shaft bearing structure, namely, a pair of bearings with a distance are arranged on the shaft in parallel, and the two bearings are fixed through a sleeve. The cantilever shaft bearing sleeve is arranged at the inner end of the wheel shaft, so that the wheel shaft can bear larger radial moment and can bear heavier load.

The cantilever shaft bearing has a certain length, so that the frame 103 is preferably a box structure, which provides enough space to fix the bearing. In this embodiment, as shown in fig. 5, the bearing 104 is disposed in the inner housing 110, and the vertical side walls of the housing are used for fixing the two ends of the bearing. That is, in practice, the inner housing 110 is fixed with respect to the bearing, and the outer housing 111 is detachable. Specifically, the outer case 111 is open at the inner side as shown in fig. 6; the inner case 110 is a complete case structure as shown in fig. 7 and 8. The outer case 111 may be covered from the outer side of the inner case 110 and then fastened by bolts as shown in fig. 1.

In practical application, if a suitable cantilever shaft bearing cannot be purchased in the market, the cantilever shaft bearing can be self-made, the bearings are embedded at two ends of the sleeve, and then the sleeve is embedded with a reserved hole on the inner box 110.

As shown in fig. 9, the cart of the present utility model includes a frame 200 and obstacle surmounting wheel sets 100 respectively provided at both sides of the bottom of the frame.

Referring to fig. 10, the cart further includes a driving mechanism 201 and a driving axle 202, where the driving mechanism 201 is in driving connection with a differential mechanism in the middle of the driving axle 202. Two ends of the drive axle 202 are provided with half-axle sleeves 203, the frame 200 is fixedly connected with the half-axle sleeves 203, and the half-axle sleeves 203 are rotatably connected with the wheel frame 103. The drive axle is disposed as a half shaft of the drive axle 202 within the half shaft sleeve 203. The use of the drive mechanism and drive axle in the present utility model as prior art provides a source of power for the cart to handle heavier loads.

The drive axle 103 serves as a half shaft of the drive axle 202, which is in driving connection with the differential of the drive axle 202, while the frame 200 is fixedly connected with the half shaft sleeve 203, so that the two can synchronously rotate by taking the drive axle 106 penetrating through the half shaft sleeve 203 as an axis. Meanwhile, since the driving wheel shaft 106 is rotatably connected to the wheel frame 103 through the bearing 104', the wheel frame 103 can rotate with respect to the frame 200 about the driving wheel shaft 106.

When encountering an obstacle or a ditch slope, the front and rear wheels 101 on the wheel frame 103 are driven to travel simultaneously, so that the functions of climbing and climbing over the obstacle are easily realized.

In this embodiment, the driving mechanism 201 may be a motor, so as to provide assistance for the cart in the driving process, so that the cart is more labor-saving to use. As also shown in fig. 9, the cart is equipped with a mobile power source 204 that can provide power to the drive mechanism 201.

In this embodiment, as shown in fig. 9, 11 and 13, a traction device 300 is provided at the front end of the frame 200 of the cart, the traction device includes a traction wheel 301, a traction handle 302 and a trailer connector 303, wherein the traction wheel 301 and the traction handle 302 can rotate synchronously, and the traveling direction of the traction wheel 301 is adjusted by the rotation of the traction handle 302, so as to realize the steering of the cart.

The traction device of the cart is detachably connected with the frame. Referring to fig. 12 and 13, in this embodiment, a long connecting rod 304 is provided on the traction device 300 along the opposite direction of the trailer connector 303, a sleeve 305 is provided in the center of the bottom of the front end of the frame 200, and the connecting rod 304 can be inserted into the sleeve 305 and then fixed by a bolt. The connecting rod 304 may be provided with a plurality of bolt holes so that the length of insertion of the connecting rod 304 can be adjusted. The front end of the sleeve 305 extends beyond the front end of the frame 200, and a latch may be provided at the front end portion of the sleeve 305.

Claims (10)

1. The obstacle surmounting wheel set comprises wheels, wheel axles and wheel frames, and is characterized in that,

the wheel shafts are at least two, are arranged in parallel back and forth along the longer direction of the wheel frame, and the outer end of each wheel shaft is at least provided with one wheel which rotates synchronously with the wheel shaft;

the inner end of the wheel shaft is rotationally connected with the wheel frame through a bearing;

the middle part of the wheel frame is provided with a driving wheel, a driving wheel shaft of the driving wheel is rotationally connected with the wheel frame through a bearing, and the driving wheel shaft synchronously rotate;

the wheel shaft is provided with a transmission piece, the wheel shaft and the transmission piece synchronously rotate, and the transmission piece is in transmission connection with the driving wheel.

2. The obstacle surmounting wheel set according to claim 1, wherein the transmission member and the driving wheel are gears, and the transmission member on the wheel axle and the driving wheel axle are in transmission connection through a chain.

3. The obstacle detouring wheel set of claim 2 wherein the number of wheel axles is two, the drive axle being located in the middle between the wheel axles, the drive axle being located at a greater level than the wheel axles.

4. A wheel set according to claim 3, wherein a tension wheel is provided between the transmission member and the drive wheel, the tension wheel being in external engagement with the chain.

5. The obstacle detouring wheel set according to any one of claims 1 to 4, wherein the wheel carrier is of a closed box construction, the wheel carrier comprises an inner box and an outer box, the transmission and the drive wheel are provided in the outer box, and the bearings of the wheel axle and the drive wheel axle are provided in the inner box.

6. The obstacle crossing wheel assembly as defined in claim 5, wherein the wheel axle and the drive axle are each provided with a pair of bearings, and are nested in parallel with the inner ends of the wheel axle and the drive axle, respectively.

7. The trolley comprises a trolley frame and is characterized in that the two sides of the bottom of the trolley frame are respectively provided with the obstacle crossing trolley wheel set as claimed in any one of claims 1 to 6.

8. The cart of claim 7, further comprising a drive mechanism and a drive axle, the drive mechanism in driving communication with a differential in a middle portion of the drive axle;

the two ends of the driving axle are provided with half-axle sleeves, the frame is fixedly connected with the half-axle sleeves, and the half-axle sleeves are rotationally connected with the wheel frame;

the driving wheel shaft is used as a half shaft of the driving axle to penetrate through the half shaft sleeve.

9. The cart of claim 7, wherein the front end of the frame is provided with a traction device comprising a traction wheel, a towing handle, and a trailer connector, wherein the traction wheel rotates coaxially and synchronously with the towing handle.

10. The cart of claim 9, wherein the traction device is removably coupled to the frame.