CN215513122U - Running gear of construction vehicle - Google Patents
Running gear of construction vehicle Download PDFInfo
- Publication number
- CN215513122U CN215513122U CN202120867362.6U CN202120867362U CN215513122U CN 215513122 U CN215513122 U CN 215513122U CN 202120867362 U CN202120867362 U CN 202120867362U CN 215513122 U CN215513122 U CN 215513122U
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- wheel
- shaft
- worm
- frame
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Abstract
A running gear of construction vehicle, each pillar stand of the construction vehicle is supported by a sub-frame, each sub-frame has a pack of running gears; the sub-frame is U-shaped, and the upright post is connected with the bottom of the U-shaped upward opening through a shaft; the two tops of the sub-frame are bent and extended in opposite directions, and the same number of running gears are arranged on the extended part of each sub-frame. The device drives a worm to rotate clockwise through an inclined motor, the worm drives a worm wheel meshed with the worm to rotate clockwise, the worm wheel drives a key shaft meshed with the worm wheel to rotate clockwise synchronously, and the key shaft drives a wheel carrier to swing clockwise to realize that the lower part of a composite wheel inclines outwards; the tilting motor drives the worm to rotate anticlockwise, the worm drives the worm wheel meshed with the worm to rotate anticlockwise, the worm wheel drives the key shaft meshed with the worm wheel to synchronously rotate anticlockwise, and the key shaft drives the wheel carrier to swing anticlockwise to realize that the lower part of the composite wheel tilts inwards; and the running gear is designed to be more compact.
Description
Technical Field
The utility model relates to a traveling device of a construction vehicle, which is mainly used for the construction of rails such as subways or high-speed railways and can adapt to various road conditions, and belongs to the optimization technology of construction vehicles.
Background
In the process of highway construction, subway construction and high-speed rail construction, a construction vehicle is required to carry a large amount of materials to assist engineering construction, so that the road condition of the construction vehicle is complex, the construction vehicle has a rough road surface, a road surface or a tunnel with a downward concave middle part and a curved road surface, tracks are laid on some road surfaces, and the vehicle only with tires cannot run.
The existing construction vehicle runs by using tires or rail wheels matched with a track, when the existing construction vehicle runs on a section where the track is not laid, the existing construction vehicle runs by using the tires, when the existing construction vehicle runs on a section where the track is laid, the existing construction vehicle unloads the tires and changes the tires, and otherwise, the existing construction vehicle unloads the tires and changes the tires. The replacement between the tire and the rail wheel is very difficult, time-consuming and labor-consuming.
Therefore, there is a need for a construction vehicle having a simpler structure that can normally travel between a road surface on which a track is not laid and a section on which the track is laid by simply switching between the road surface and the section.
The application number 202120188056X, entitled "construction vehicle with combined wheels", discloses a construction vehicle that can adapt to various road conditions, which has the advantages that the vehicle can run on the road without tracks or on the sections where the tracks are laid, the structure of the traveling device is relatively complex, and the power of the traveling motor needs to be transmitted through the bevel gears meshed with each other. In addition, the walking device partially protrudes out of the projection range of the sub-frame, so that the outward side of the walking device is possibly scratched by external obstacles in the driving process.
Therefore, in order to solve the above problems, it is necessary to find a traveling apparatus having a simpler structure suitable for a construction vehicle capable of normally traveling on a track and a general road surface.
SUMMERY OF THE UTILITY MODEL
The purpose of the utility model is: provided is a traveling device having a simpler structure, which is suitable for a construction vehicle capable of traveling normally on a track or a general road surface.
The technical scheme of the utility model is as follows: a running gear of construction vehicle, each upright post 2 of the construction vehicle is supported by a sub-frame 1, each sub-frame is provided with a group of running gear 3; the sub-frame is U-shaped, and the upright post is connected with the bottom of the U-shaped upward opening through a shaft; the two tops of the sub-frame are bent and extended in opposite directions, and the same number of running gears are arranged on the extended part of each sub-frame; the traveling device 3 mainly comprises a bogie 31, a traveling motor 32, a traveling gear, a composite wheel 33 and a wheel frame 34, wherein the traveling motor is arranged on the wheel frame, the bogie 31 is bolted with an outer ring of a slewing bearing through a bolt, the composite wheel is fixed on the wheel frame through a wheel shaft, the wheel frame is arranged on the bogie, the traveling gear is fixed on an output shaft of the traveling motor, and the traveling gear is connected with the composite wheel 33 through a chain.
The composite wheel comprises a tire, a rail wheel, a chain wheel and a connecting bushing, the tire, the rail wheel and the chain wheel are sequentially sleeved and fixed on the connecting bushing, the chain wheel is positioned between the tire and the rail wheel, and the chain wheel is connected with a traveling motor through a chain; inserting a wheel shaft 35 into the central shaft hole connected with the bushing, wherein a shaft head of the wheel shaft facing outwards is provided with a shaft hole with a key groove, and the wheel frame is fixed on the top of the shaft head of the wheel shaft; one end of the chain is sleeved on the walking gear, the other end of the chain is sleeved on the composite wheel, the walking motor drives the walking gear to rotate when working, and the walking gear drives the composite wheel to rotate through the chain.
The two support legs of the bogie are respectively provided with a steering hole, the walking device also comprises a key shaft 36, two limit shaft sleeves, two positioning sleeves with key slots matched with the key shaft and two groups of same tilting devices, and each group of tilting devices at least comprises a tilting motor 37, a worm 38 and a worm wheel 39 with key slots matched with the key shaft; the inclined motor is fixed on the side wall of the bogie, one end of the worm is inserted into a bearing in a supporting foot lug hole on a supporting foot lug protruding outwards at the lower part of the supporting foot of the bogie, the other end of the worm is fixed on an output shaft of the inclined motor, one end of the key shaft 36 sequentially penetrates through a steering hole, a gasket, a positioning sleeve, a wheel shaft hole, another positioning sleeve, the gasket, another steering hole, the gasket, another limiting shaft sleeve and a worm wheel, the gasket, another limiting shaft sleeve and another worm wheel are sleeved at the other end of the key shaft, and locking devices are arranged at two ends of the key shaft to prevent components sleeved on the key shaft from being separated, so that each worm wheel is meshed with the worms in the same group, and the key shaft can rotate in the steering hole.
The locking device is a bolt or a pressing sheet fixed at the tail end of the key shaft.
The walking device is positioned in the projection range of the sub-frame.
The center of the U-shaped bottom of the sub-frame is provided with an opening, so that the lower part of the upright post can enter the opening.
Advantageous effects
1. The tilting motor drives the worm to rotate clockwise, the worm drives the worm wheel meshed with the worm to rotate clockwise, the worm wheel drives the key shaft meshed with the worm wheel to synchronously rotate clockwise, and the key shaft drives the wheel carrier to swing clockwise to realize that the lower part of the composite wheel tilts outwards; the tilting motor drives the worm to rotate anticlockwise, the worm drives the worm wheel meshed with the worm to rotate anticlockwise, the worm wheel drives the key shaft meshed with the worm wheel to synchronously rotate anticlockwise, and the key shaft drives the wheel carrier to swing anticlockwise to realize that the lower part of the composite wheel tilts inwards;
2. the walking motor is connected with the chain wheel of the composite wheel through the walking gear and the chain, so as to drive the composite wheel to walk;
3. the construction vehicle can better adapt to the height fluctuation of the road in the advancing direction by arranging the relatively independent sub-frame;
4. the running gear design is more compact, and the position of running gear on the automobile body is located the projection scope of dividing the frame.
Drawings
FIG. 1 is a schematic perspective view of an embodiment of the present invention;
FIG. 2 is a schematic view of the embodiment of FIG. 1, partially exploded;
FIG. 3 is a schematic view of a drop frame and steering apparatus;
FIG. 4 is a schematic burst view of FIG. 3;
FIG. 5 is a schematic view of a partial explosion of the walking device;
FIG. 6 is a schematic exploded view of a composite wheel and axle;
FIG. 7 is a schematic partial cross-sectional view of the walking device;
FIG. 8 is an enlarged view of a portion of FIG. 7;
FIG. 9 is a partial structural view of the walking device;
FIG. 10 is a schematic partial burst view of FIG. 9;
FIG. 11 is a perspective view of the truck;
FIG. 12 is a schematic perspective view of the sub-frame and the traveling device mounted on the sub-frame;
FIG. 13 is a front view of FIG. 12;
figure 14 is a schematic view of the upper portion of the composite wheel leaning inwardly on the partial frame.
Detailed Description
As shown in fig. 1 to 14, a traveling device of a construction vehicle, each upright post 2 of the construction vehicle is supported by a sub-frame 1, and a group of traveling devices 3 are mounted on each sub-frame; the sub-frame is U-shaped, and the upright posts are in shaft connection with two side walls at the bottom of the U-shaped upward opening; the two tops of the sub-frame are bent and extended in opposite directions, and the same number of running gears are arranged on the extended part of each sub-frame.
The traveling device is connected with the sub-frame through a steering device 4, the steering device 4 comprises a slewing bearing 41, a steering motor 42 and a steering worm 43, the steering worm is fixed on the downward wall surface of the sub-frame through two shaft seats 44 with bearings, the outer ring of the slewing bearing is meshed with the steering worm, the inner ring of the slewing bearing is fixed on the downward wall surface of the sub-frame through bolts, and the outer ring of the slewing bearing is connected with the traveling device through bolts; a forward power supply is input to a steering motor, the steering motor drives a steering worm 43 to rotate reversely through a group of inclined plane transmission gears, the steering worm drives an outer ring of a slewing bearing meshed with the steering worm to rotate clockwise, and the outer ring drives a walking device fixed together with the outer ring through a bolt to rotate clockwise to realize right steering; a reverse power supply is input to the steering motor, the steering motor drives the steering worm 43 to rotate positively through a group of inclined plane transmission gears, the steering worm drives the outer ring of the rotary bearing meshed with the steering worm to rotate anticlockwise, and the outer ring drives the walking device fixed together with the outer ring through the bolt to rotate anticlockwise to achieve left steering.
The traveling device 3 mainly comprises a bogie 31, a traveling motor 32, a traveling gear, a composite wheel 33 and a wheel frame 34, wherein the traveling motor is arranged on the wheel frame, the bogie 31 is bolted with an outer ring of a slewing bearing through a bolt, the composite wheel is fixed on the wheel frame through a wheel shaft, the wheel frame is arranged on the bogie, the traveling gear is fixed on an output shaft of the traveling motor, and the traveling gear is connected with the composite wheel 33 through a chain.
The composite wheel comprises a tire, a rail wheel, a chain wheel and a connecting bushing, the tire, the rail wheel and the chain wheel are sequentially sleeved and fixed on the connecting bushing, the chain wheel is positioned between the tire and the rail wheel, and the chain wheel is connected with a traveling motor through a chain; inserting a wheel shaft 35 into the central shaft hole connected with the bushing, wherein a shaft head of the wheel shaft facing outwards is provided with a shaft hole with a key groove, and the wheel frame is fixed on the top of the shaft head of the wheel shaft; one end of the chain is sleeved on the walking gear, the other end of the chain is sleeved on the composite wheel, the walking motor drives the walking gear to rotate when working, and the walking gear drives the composite wheel to rotate through the chain.
The diameter of the rail wheel is smaller than that of the tire, and the rail wheel is positioned on the outer side of the reset wheel.
The two support legs of the bogie are respectively provided with a steering hole, the walking device also comprises a key shaft 36, two limit shaft sleeves, two positioning sleeves with key slots matched with the key shaft and two groups of same tilting devices, and each group of tilting devices at least comprises a tilting motor 37, a worm 38 and a worm wheel 39 with key slots matched with the key shaft; the inclined motor is fixed on the side wall of the bogie, one end of the worm is inserted into a bearing in a supporting leg lug hole on a supporting leg lug which protrudes outwards at the lower part of the supporting leg of the bogie, and the other end of the worm is fixed on an output shaft of the inclined motor.
One end of the key shaft 36 sequentially passes through a steering hole, a gasket, a positioning sleeve, a wheel shaft hole, another positioning sleeve, a gasket, another steering hole, a gasket, another limiting shaft sleeve and a worm wheel, the gasket, another limiting shaft sleeve and another worm wheel are sleeved at the other end of the key shaft, and locking devices are arranged at two ends of the key shaft, so that parts sleeved on the key shaft cannot be separated out, each worm wheel is meshed with worms in the same group, and the key shaft can rotate in the steering hole.
The locking device can be a bolt or a pressing sheet fixed at the tail end of the key shaft, and the like.
A positive power supply is input into the tilting motor, the tilting motor drives the worm to rotate clockwise, the worm drives the worm wheel meshed with the worm to rotate clockwise, the worm wheel drives the key shaft meshed with the worm wheel to rotate clockwise synchronously, and the key shaft drives the wheel carrier to swing clockwise to realize that the lower part of the composite wheel tilts outwards.
And a reverse power supply is input to the tilting motor, the tilting motor drives the worm to rotate anticlockwise, the worm drives the worm wheel meshed with the worm to rotate anticlockwise, the worm wheel drives the key shaft meshed with the worm wheel to synchronously rotate anticlockwise, and the key shaft drives the wheel carrier to swing anticlockwise to realize that the lower part of the composite wheel tilts inwards.
When the composite wheel is applied, the inclination motor is a slow-speed motor, and the composite wheel can deflect in a certain range. The deflection amplitude of the composite wheel and the vertical line form an included angle of no more than 20 degrees.
The walking device is positioned in the projection range of the sub-frame.
The center of the U-shaped bottom of the sub-frame is provided with an opening, so that the lower part of the upright post can enter the opening, and the upright post is easier to position and more labor-saving to install when the upright post is combined with the sub-frame.
For can passing through the platform smoothly, set up inside sunken groove of standing of crossing on the stand of minute frame top, set up the groove of standing of crossing after, the bearing capacity and the deformability of stand reduce, for remedying this not enough, set up the position that has set up the groove of standing of can dismantling or mobilizable boss, pull down the boss or put aside before the station of crossing, wait to install the boss back again after the platform with the construction car.
The above-mentioned embodiments are only used for illustrating the application of the present invention, and are not meant to be limiting, and those skilled in the art should make various changes or substitutions within the spirit of the present invention, and shall fall within the protection scope of the present invention.
Claims (6)
1. The utility model provides a running gear of construction vehicle, every stand (2) of construction vehicle are supported by a branch frame (1), have settled a set of running gear (3), its characterized in that on every branch frame: the sub-frame is U-shaped, and the upright post is connected with the bottom of the U-shaped upward opening through a shaft; the two tops of the sub-frame are bent and extended in opposite directions, and the same number of running gears are arranged on the extended part of each sub-frame; the traveling device (3) mainly comprises a bogie (31), a traveling motor (32), a traveling gear, a composite wheel (33) and a wheel carrier (34), wherein the traveling motor is arranged on the wheel carrier, the bogie (31) is bolted with an outer ring of a slewing bearing through a bolt, the composite wheel is fixed on the wheel carrier through a wheel shaft, the wheel carrier is arranged on the bogie, the traveling gear is fixed on an output shaft of the traveling motor, and the traveling gear is connected with the composite wheel (33) through a chain.
2. The walking device of claim 1, wherein: the composite wheel comprises a tire, a rail wheel, a chain wheel and a connecting bushing, the tire, the rail wheel and the chain wheel are sequentially sleeved and fixed on the connecting bushing, the chain wheel is positioned between the tire and the rail wheel, and the chain wheel is connected with a traveling motor through a chain; a wheel shaft (35) is inserted into the central shaft hole connected with the bushing, a shaft head of the wheel shaft facing outwards is provided with a shaft hole with a key groove, and the wheel carrier is fixed on the top of the shaft head of the wheel shaft; one end of the chain is sleeved on the walking gear, the other end of the chain is sleeved on the composite wheel, the walking motor drives the walking gear to rotate when working, and the walking gear drives the composite wheel to rotate through the chain.
3. The walking device of claim 1, wherein: the two support legs of the bogie are respectively provided with a steering hole, the walking device also comprises a key shaft (36), two limit shaft sleeves, two positioning sleeves with key slots matched with the key shaft and two groups of same tilting devices, and each group of tilting devices at least comprises a tilting motor (37), a worm (38) and a worm wheel (39) with key slots matched with the key shaft; the inclined motor is fixed on the side wall of the bogie, one end of the worm is inserted into a bearing in a supporting leg lug hole on a supporting leg lug protruding outwards at the lower part of the supporting leg of the bogie, the other end of the worm is fixed on an output shaft of the inclined motor, one end of the key shaft (36) sequentially penetrates through a steering hole, a gasket, a positioning sleeve, a wheel shaft hole, another positioning sleeve, the gasket, another steering hole, the gasket, another limiting shaft sleeve and a worm wheel, the gasket, another limiting shaft sleeve and another worm wheel are sleeved at the other tail end of the key shaft, and locking devices are arranged at two ends of the key shaft to prevent components sleeved on the key shaft from being separated, so that each worm wheel is meshed with the worms in the same group, and the key shaft can rotate in the steering hole.
4. The walking device of claim 3, wherein: the locking device is a bolt or a pressing sheet fixed at the tail end of the key shaft.
5. The walking device of claim 1, wherein: the walking device is positioned in the projection range of the sub-frame.
6. The walking device of claim 1, wherein: the center of the U-shaped bottom of the sub-frame is provided with an opening, so that the lower part of the upright post can enter the opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120867362.6U CN215513122U (en) | 2021-04-26 | 2021-04-26 | Running gear of construction vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120867362.6U CN215513122U (en) | 2021-04-26 | 2021-04-26 | Running gear of construction vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215513122U true CN215513122U (en) | 2022-01-14 |
Family
ID=79802782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120867362.6U Expired - Fee Related CN215513122U (en) | 2021-04-26 | 2021-04-26 | Running gear of construction vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215513122U (en) |
-
2021
- 2021-04-26 CN CN202120867362.6U patent/CN215513122U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220114 |