CN108216044B

CN108216044B - Truck with ladder stand

Info

Publication number: CN108216044B
Application number: CN201711127915.9A
Authority: CN
Inventors: 葛文顺
Original assignee: Wulian County Measurement And Testing Service Center
Current assignee: Wulian bozheng industry and Trade Co.,Ltd.
Priority date: 2017-11-15
Filing date: 2017-11-15
Publication date: 2020-12-04
Anticipated expiration: 2037-11-15
Also published as: CN108216044A

Abstract

The present invention relates to automobiles. The utility model provides an establish freight train of cat ladder, includes the automobile body and supports the wheel of automobile body, the automobile body is equipped with driver's cabin, the car hopper and the shaft of loading goods, the wheel includes tire, rim and radials, the wheel is installed epaxial, the car hopper includes bottom plate and lower extreme and the articulated curb plate together of bottom plate, its characterized in that, be equipped with the cat ladder on the side of car hopper, the lower extreme of cat ladder is located the epaxial. The invention aims to provide a truck with a ladder stand, which is convenient to mount and dismount a truck hopper, and solves the problem that the conventional truck is inconvenient to mount and dismount the truck hopper.

Description

Truck with ladder stand

Technical Field

The invention relates to an automobile, in particular to a truck with a ladder stand.

Background

Automobiles are classified into bridges and trucks according to their purposes. The basic structure of the truck comprises a truck body and wheels for supporting the truck body, wherein the truck body is provided with a cab and a hopper for loading goods, the wheels comprise tires, rims and radial plates, and the hopper comprises a bottom plate and a side plate of which the lower end is hinged with the bottom plate. The side plate can be put down when the goods are unloaded, so that the goods can be conveniently unloaded.

The existing truck has the following defects: the people are inconvenient to get on or off the car hopper; the brake is completed by arranging a wheel shaft of the wheel, and the torque generated by the brake force is small, so that the wheel can be forced to stop rotating, namely the brake can be realized by needing larger brake force.

Disclosure of Invention

The invention aims to provide a truck with a ladder stand, which is convenient to mount and dismount a truck hopper, and solves the problem that the conventional truck is inconvenient to mount and dismount the truck hopper.

The second purpose of the invention is to further provide a truck with a ladder stand and large torque generated in braking, which solves the problem of small torque generated in braking of the conventional truck.

The technical problem is solved by the following technical scheme: the utility model provides an establish freight train of cat ladder, includes the automobile body and supports the wheel of automobile body, the automobile body is equipped with driver's cabin, the car hopper and the shaft of loading goods, the wheel includes tire, rim and radials, the wheel is installed epaxial, the car hopper includes bottom plate and lower extreme and the articulated curb plate together of bottom plate, its characterized in that, be equipped with the cat ladder on the side of car hopper, the lower extreme of cat ladder is located the top of shaft. The crawling ladder is arranged on the side face of the car hopper, so that the car hopper can be easily climbed through the crawling ladder, and convenience in loading the car hopper is improved. The lower extreme of cat ladder is located the top of stand for the setting of cat ladder can not influence the ability that the vehicle passed through the road surface.

Preferably, the crawling ladder comprises an upper section and a lower section, the upper section and the side plate are fixed together, the lower end of the upper section is higher than the lower end of the side plate, the lower section is fixed on the bottom plate, and the upper end of the upper section is lower than the upper end of the bottom plate. The arrangement of the ladder stand can not cause inconvenience when the side plate is turned down.

The wheel also comprises a brake actuator, wherein the brake actuator comprises a friction ring, a brake ring with a friction surface arranged on the end surface and a friction ring driving mechanism, the friction ring driving mechanism is used for driving the friction ring to move axially along the brake ring to abut against the friction surface for braking and separate from the friction surface for stopping braking, the brake ring is connected to the inner circumferential surface of the rim and is coaxial with the rim, an annular cooling water cavity extending along the circumferential direction of the brake ring is arranged in the brake ring, a plurality of water outlets penetrating through the annular cooling water cavity are arranged on the friction surface, a plug and a hole closing spring for driving the plug to move outwards to plug the water outlets are arranged in the water outlets, and the plug protrudes out of the friction surface when the plug plugs the water outlets. When in use, the driving mechanism is connected with the vehicle body, and cooling water is filled in the cooling water ring. When braking is needed, the friction ring driving mechanism drives the friction ring to abut against the friction surface of the brake ring to realize friction braking, when the friction ring abuts against the brake surface, the plug is driven inwards to open the water outlet hole, water in the annular cooling water cavity flows out to cool the brake part, and the brake effect is prevented from being influenced by overhigh temperature during braking. When the brake is stopped, the driving mechanism drives the friction ring to separate from the friction surface. This technical scheme can cool off the position of braking in-process with the department at the braking. The friction surface sets up the terminal surface at the retaining ring, because the interference of the centrifugal force of the production when the wheel rotates, the cooling water that flows is difficult to flow backward to annular cooling water intracavity, avoids the cooling water of annular cooling water intracavity to be polluted. Since the friction point during braking is generated near the rim, the arm length during braking can be increased, thereby increasing the braking torque. The second object of the invention is achieved.

Preferably, a water outlet assisting air bag is arranged in the annular cooling water cavity. In the initial state, the water outlet assisting air bag is in a folded state (namely, the water outlet assisting air bag is not completely unfolded), and the water pressure in the annular cooling water cavity is more than 1.5 atmospheric pressures. Not only is it convenient to squeeze out the cooling water, but also, since the air bag can be deformed, the air bag can be enlarged to fill the space where the cooling water is reduced when the water pressure is lowered and the amount of water becomes small after the cooling water is discharged, so that the water can be reliably discharged.

Preferably, the water outlet assisting air bag is annular and extends along the circumferential direction of the brake ring. The boosting effect is good.

Preferably, the water outlets are distributed along the circumferential direction of the brake ring, the friction ring is provided with a plurality of friction blocks which are distributed along the circumferential direction of the friction ring and protrude out of the friction ring to be matched with the friction surface, the gap distance between the adjacent water outlets is larger than the length of the friction blocks along the circumferential direction of the friction ring, the water outlet assisting air bag is provided with a plurality of air valves, each plug is provided with an inflation channel, the inflating valves are connected with the inner ends of the inflating channels of the plugs in a one-to-one correspondence manner, the other ends of the inflating channels are connected with compression pistons in a sealing and sliding manner, a pressurization air cavity is formed between the compression piston and the inflating valve, a compression piston return spring is arranged in the pressurization air cavity, the compression piston is connected with a push rod extending out of the outer end face of the plug, and a one-way valve which is opened towards the pressurization gas cavity is arranged on the compression piston. In the use process, when the friction block presses the push rod, the push rod pushes the piston to enable air in the pressurization air cavity to be compressed into the water outlet assisting air bag for air pressure supplement, and therefore the water pressure reduction caused by water outflow is made up. Because the clearance distance between the adjacent apopores is greater than the length of clutch blocks along the friction ring circumference for the clutch blocks can stagger with the push rod, then after staggering, the piston removes and the pressurized air cavity resets under compression piston reset spring's effect, and the check valve opens and carries out the tonifying qi to the pressurized air cavity in the reset process, so that next time inflate the gasbag. This technical scheme can utilize friction mechanism to supply air to the gasbag and compensate the pressure drop that water flow out and lead to.

Preferably, the inlet end of the one-way valve is provided with an air filter disc. Can prevent water from entering the water outlet boosting air bag.

As preferred, the solid fixed ring in inboard and the solid fixed ring in the outside are drawn together to friction ring actuating mechanism, the solid fixed ring in inboard and the solid fixed ring in the outside are together fixed with the automobile body, the solid fixed ring in inboard and the solid fixed ring in the outside link together through a plurality of spliced poles that distribute along the solid fixed ring circumference in inboard, be equipped with smooth chamber in the spliced pole, smooth intracavity is equipped with the drive piston, the drive piston passes through the actuating lever with the friction ring links together, the drive piston will smooth chamber is split into inboard chamber and outside chamber, inboard fixed ring be equipped with the inboard chamber of inboard chamber intercommunication fills the gassing passageway, the outside fixed ring be equipped with the outside chamber of outside chamber intercommunication fills the gassing passageway. When in use, the inner fixing ring and/or the outer fixing ring are fixed on the vehicle body to realize the fixation of the invention. When braking, the inner cavity is inflated, the outer cavity is deflated, and vice versa.

Preferably, the inner cavity inflation and deflation channel comprises an inner annular channel extending along the circumferential direction of the inner fixing ring, and the inner annular channel is provided with an inner inflation and deflation hole penetrating through the surface of the inner fixing ring and a plurality of inner communication holes communicated with the inner cavity in a one-to-one correspondence manner. The layout is convenient.

Preferably, the outer cavity inflation and deflation channel comprises an outer annular channel extending along the circumferential direction of the outer fixing ring, and the outer annular channel is provided with an outer inflation and deflation hole penetrating through the outer fixing surface of the outer cavity and a plurality of outer communication holes communicated with the outer cavity in a one-to-one correspondence manner. The layout is convenient.

The invention has the following advantages: the loading and unloading of the car hopper are convenient; when the braking force is the same, the braking torque is larger than the braking torque generated by braking on the wheel axle; can carry out automatically cooling in step when braking.

Drawings

FIG. 1 is a schematic diagram of the present invention.

Fig. 2 is a schematic view of a wheel.

Fig. 3 is a partially enlarged schematic view of a portion a of fig. 2.

Fig. 4 is a partially enlarged schematic view of fig. 3 at B.

In the figure: a vehicle body 1, a cab 11, a cargo-loaded vehicle body 12, a bottom plate 121, a side plate 122, a hinge 123, a wheel shaft 13, a wheel 2, a tire 21, a rim 22, a wheel disc 23, a brake actuator 3, a brake ring 31, a friction surface 310, an annular cooling water chamber 311, a water outlet 312, a plug 313, an inflation passage 3131, a pressurized air chamber 3132, a closed-cell spring 314, a compression piston 315, a compression piston return spring 316, a check valve 317, an air filter 318, a push rod 319, a friction ring 32, a friction block 321, a friction ring drive mechanism 33, an inner fixing ring 331, an inner cavity inflation/deflation passage 3311, an inner annular passage 33111, an inner inflation/deflation hole 33112, an inner communication hole 33113, an outer fixing ring 332, an outer cavity inflation/deflation passage 3321, an outer annular passage 33211, an outer inflation/deflation hole 33212, an outer communication hole 33213, a connection column 333, a slide cavity 3331, an inner cavity 33311, an outer cavity 33312, The water outlet assisting air bag 34, the air valve 341, the ladder 4, the upper section 41, the lower section 411 of the upper section, the lower section 42, the upper end 421 of the lower section and the lower end 422 of the lower section.

Detailed Description

The invention is further described with reference to the following figures and examples.

Referring to fig. 1, a truck with a ladder stand, comprises a truck body 1 and wheels 2 for supporting the truck body. The vehicle body 1 is provided with a cab 11, a container 12 for loading cargo, and wheel shafts 13 for mounting wheels. The hopper 12 includes a bottom plate 121 and side plates 122. The lower ends of the side plates 122 are hinged to the bottom plate 121 by hinges 123. The side of the car hopper 12 is provided with a ladder 4. The ladder 4 comprises an upper section 41 and a lower section 42. The upper section 41 is secured to the side plate 122. The lower end 411 of the upper section is higher than the lower end of the side plate 122. The lower section 42 is secured to the base plate 121. The upper end 421 of the lower section is lower than the upper end of the bottom plate 121. The lower end 422 of the lower section is located above the axle 13.

The wheel 2 includes a tire 21, a rim 22, and a web 23. The wheels 2 are arranged on the wheel shafts and connected with the vehicle body.

When in use, the bicycle is driven into the car hopper through the ladder stand.

Referring to fig. 2, the wheel is also provided with a brake actuator 3. The brake actuator 3 includes a brake ring 31, a friction ring 32, and a friction ring drive mechanism 33.

The braking ring 31 is coaxial with the rim 22. The brake ring 31 is attached to the inner peripheral surface of the rim 22. The inner end surface (the end surface on the side facing the center of the vehicle body when in use) of the brake ring 31 is provided with a friction surface 310. An annular cooling water chamber 311 is provided in the brake ring 31. The annular cooling water chamber 311 extends circumferentially along the brake ring 31. The annular cooling water cavity 311 is internally provided with a water outlet assisting air bag 34. The water outlet assisting air bag 34 is in a ring shape extending along the circumferential direction of the brake ring.

The friction ring 32 and the brake ring 31 are coaxial. The friction ring 32 is provided with a plurality of friction blocks 321. The friction blocks 321 are circumferentially distributed along the friction ring 32. The friction block 321 protrudes from the friction ring 32.

The friction ring drive mechanism 33 includes an inner fixing ring 331 and an outer fixing ring 332. The inner fixing ring 331 and the outer fixing ring 332 are coaxial. The inner retainer ring 331 and the outer retainer ring 332 are connected together by a plurality of connecting posts 333. The connecting posts 333 are circumferentially distributed along the inner fixing ring 331. A sliding cavity 3331 is arranged in the connecting column 333. A drive piston 3332 is disposed within the sliding chamber 3331. The drive piston 3332 is coupled to the friction ring 32 by a drive rod 3333. The drive piston 3332 divides the slide cavity 3331 into an inboard cavity 33311 and an outboard cavity 33312. The inner fixing ring 331 is provided with an inner cavity inflation/deflation passage 3311. The medial chamber inflation and deflation channel 3311 comprises a medial annular channel 33111 that extends circumferentially along the medial fixation ring. The inner annular channel 33111 is provided with inner inflation/deflation holes 33112 penetrating the surface of the inner stationary ring and a plurality of inner communication holes 33113 communicating with the inner chamber 33311 one by one.

The outside retainer ring 332 is provided with an outside chamber inflation/deflation passageway 3321. The outer chamber inflation and deflation channel 3321 comprises an outer annular channel 33211 extending circumferentially along the outer retaining ring. The outer annular channel 33211 is provided with outer inflation/deflation holes 33212 penetrating the surface of the outer stationary ring and a plurality of outer communication holes 33213 communicating with the outer chamber 33312 in a one-to-one correspondence.

Referring to fig. 3, the friction surface 310 is provided with a plurality of water outlet holes 312. The water outlet hole 312 penetrates the annular cooling water cavity 311. The water outlet holes 312 are distributed along the circumference of the annular cooling water cavity 311. The clearance distance between adjacent apopores is greater than the length of clutch block 321 along the friction ring circumference, also the clutch block can rotate to be located between two adjacent apopores 312 and not carry out part and/or complete sheltering from the apopore. The outlet hole 312 is provided with a plug 313 and a closed-cell spring 314 for driving the plug to move outwards (i.e. towards the right end of the drawing, i.e. towards the end of the friction ring) to close the outlet hole. The plug is of a conical structure. When the plug 313 seals the water outlet 312, the plug 313 protrudes the friction surface 310. Plug 313 is provided with inflation passage 3131. The water outlet assisting air bag 34 is provided with a plurality of air valves 341. Each valve 341 is connected to the inner end of a plugged inflation passage 3131. The other end of inflation passage 3131 is sealingly and slidably connected to compression piston 315. A pressurized air chamber 3132 is formed between the compression piston 315 and the valve mouth 341. A push rod 319 is connected to the compression piston 315. The push rod 319 extends beyond the outer end face of the plug 313. The portion of the pushrod 319 extending beyond the plug is conical.

Referring to fig. 4, a compression piston return spring 316 is provided in the pressurized air chamber 3132. The compression piston return spring 316 is used to drive the compression piston 315 outward. The compression piston 315 is provided with a check valve 317 opened toward the inside of the pressurized air chamber 3132. The inlet end of the one-way valve 317 is provided with an air filter 318.

Referring to fig. 2 to 4, in use, the inner fixing ring 331 and the outer fixing ring 332 are fixed to the vehicle body, i.e., do not rotate together with the wheel.

The braking process of the invention is as follows: the inner chamber is inflated and the outer chamber is deflated through the inner chamber inflation/deflation passage 3311 so that the drive piston 3332 moves to the left and the friction plate 32 is driven to move to the left by the drive rod, and the structure of the left movement is such that the friction block abuts against the friction surface to realize rotation. When the friction ring and the brake ring rotate relatively to the plug and the friction block are aligned, the friction block drives the plug to move inwards to enable cooling water to flow out of the water outlet hole to cool the friction part, the friction block drives the push rod to move inwards, the push rod pushes the compression piston 315 to move leftwards to enable the volume of the pressurized air cavity 3132 to be reduced and the pressure to be increased, so that air is flushed into the water outlet assisting air bag through the inflating valve to reduce the pressure drop of the cooling water. When the friction block is staggered with the plug, the plug reset cooling water stops flowing out, and the push rod and the compression piston are reset in a staggered manner to realize air supplement to the pressurized air cavity.

Upon stopping rotation, the outside chamber is inflated and the inside chamber is deflated through the outside chamber inflation/deflation passage 3321 so that the drive piston 3332 moves to the right and the friction plate 32 is driven to move to the right by the drive rod, with the result that the friction plate is separated from the friction surface and is not able to squeeze the push rod.

Claims

1. A truck with a ladder stand comprises a truck body and wheels for supporting the truck body, wherein the truck body is provided with a cab, a hopper for loading goods and a wheel shaft, the wheels comprise tires, rims and radial plates, the wheels are mounted on the wheel shaft, the hopper comprises a bottom plate and a side plate, the lower end of the side plate is hinged with the bottom plate, the truck with the ladder stand is characterized in that the ladder stand is arranged on the side surface of the hopper, and the lower end of the ladder stand is positioned above the wheel shaft; the wheel further comprises a brake actuator, the brake actuator comprises a friction ring, a brake ring with a friction surface on the end face and a friction ring driving mechanism, the friction ring driving mechanism is used for driving the friction ring to move axially along the brake ring to abut against the friction surface to brake and separate from the friction surface to stop braking, the brake ring is connected to the inner circumferential surface of the rim and is coaxial with the rim, an annular cooling water cavity extending along the circumferential direction of the brake ring is arranged in the brake ring, a plurality of water outlets penetrating through the annular cooling water cavity are formed in the friction surface, a plug and a hole closing spring for driving the plug to move outwards to plug the water outlets are arranged in the water outlets, and the plug protrudes out of the friction surface when the plug plugs the water outlets; a water outlet assisting air bag is arranged in the annular cooling water cavity; the water outlet assisting air bag is annular and extends along the circumferential direction of the brake ring; the water outlet holes are distributed along the circumferential direction of the brake ring, a plurality of friction blocks which are distributed along the circumferential direction of the friction ring and protrude out of the friction ring and matched with the friction surface are arranged on the friction ring, the gap distance between every two adjacent water outlet holes is larger than the length of each friction block along the circumferential direction of the friction ring, the water outlet assisting air bag is provided with a plurality of air valves, each air valve is provided with an inflation channel, the air valves are connected to the inner ends of the inflation channels of the air valves in a one-to-one correspondence mode, the other end of each inflation channel is connected with a compression piston in a sealing and sliding mode, a pressurizing air cavity is formed between each compression piston and the air valve, a compression piston reset spring is arranged in each pressurizing air cavity, each compression piston is connected with a push rod extending out of the outer end.

2. A wagon as claimed in claim 1 wherein the inlet end of the one-way valve is provided with an air filter.

3. A truck with a ladder stand as claimed in claim 1, wherein the friction ring driving mechanism comprises an inner fixing ring and an outer fixing ring, the inner fixing ring and the outer fixing ring are fixed together with the truck body, the inner fixing ring and the outer fixing ring are connected together through a plurality of connecting columns circumferentially distributed along the inner fixing ring, a sliding cavity is formed in each connecting column, a driving piston is arranged in each sliding cavity, the driving piston is connected together with the friction ring through a driving rod, the driving piston divides the sliding cavity into an inner cavity and an outer cavity, the inner fixing ring is provided with an inner cavity air charging and discharging channel communicated with the inner cavity, and the outer fixing ring is provided with an outer cavity air charging and discharging channel communicated with the outer cavity.

4. The ladder truck as claimed in claim 3, wherein the inner cavity inflation/deflation passage comprises an inner annular passage extending circumferentially along the inner retainer ring, and the inner annular passage has an inner inflation/deflation hole penetrating the surface of the inner retainer ring and a plurality of inner communication holes communicating with the inner cavity in a one-to-one correspondence.

5. A truck with a ladder stand as claimed in claim 3, wherein the outside cavity inflation/deflation passage comprises an outside annular passage extending circumferentially along the outside fixing ring, and the outside annular passage is provided with an outside inflation/deflation hole penetrating through the outside fixing outer surface and a plurality of outside communication holes communicating with the outside cavity in a one-to-one correspondence.