CN217532667U

CN217532667U - Low flat-bed transport vehicle with hydraulic crawling ladder

Info

Publication number: CN217532667U
Application number: CN202221950614.2U
Authority: CN
Inventors: 褚兴开; 褚衍华; 褚衍兵
Original assignee: Shandong Yangxida Vehicle Co ltd
Current assignee: Shandong Yangxida Vehicle Co ltd
Priority date: 2022-07-27
Filing date: 2022-07-27
Publication date: 2022-10-04
Anticipated expiration: 2032-07-27

Abstract

The utility model discloses a take low flat-bed transport vechicle of hydraulic pressure cat ladder, including frame, suspension assembly, wheel and hydraulic pressure cat ladder, the frame plays fixed and supporting role, and the suspension assembly sets up in the below at frame rear portion, and the wheel sets up on the suspension assembly through the axle, its characterized in that: the front climbing plate and the rear climbing plate are connected with a frame through a traction chain after being folded, a fixing ring is fixed on the side face of the tail portion of the frame, an upper pin shaft ring and a lower pin shaft ring are fixed on the side face of the rear climbing plate, pin shafts capable of being inserted and pulled out are arranged in the upper pin shaft ring and the lower pin shaft ring, the front end of the traction chain is fixed on the fixing ring, the rear end of the traction chain is fixed on the pin shafts, and the tail ends of the pin shafts are provided with lock pins for limiting the pin shafts. The utility model has the advantages that: when a hydraulic pipeline or a hydraulic oil cylinder is damaged, the hydraulic crawling ladder cannot be unfolded due to the traction effect of the traction chain on the hydraulic crawling ladder, and the stroke safety is effectively guaranteed.

Description

Low flat-bed transport vehicle with hydraulic crawling ladder

Technical Field

The utility model relates to a transport vechicle, specific theory especially relates to a take low flat carrier vehicle of hydraulic pressure cat ladder that says so.

Background

A destination to which a work vehicle such as an excavator, a bulldozer, or the like needs to be loaded onto a corresponding vehicle for transportation during the course of shipment; this is because the bulldozer is not suitable for a long distance because of its low running speed, and the crawler-type running mechanism of the excavator is usually a crawler-type one, which cannot run on a paved road surface because the crawler is liable to damage an asphalt road surface and a cement road surface. Therefore, during the transfer process of the engineering vehicle, the engineering vehicle needs to be loaded on other vehicles to realize the transfer. At present, the engineering vehicle to be transported is loaded and unloaded by using a crane, so that the operation is time-consuming and labor-consuming, accidents are easy to happen, the engineering vehicle cannot be loaded and unloaded without the crane, and the cost and time are not facilitated to be solved. In order to realize that the vehicle can load and unload on the transport vehicle by oneself, the hydraulic cat ladder can be loaded to the afterbody of some transport vehicles at present, and the engineering vehicle that waits to transport loads on the haulage vehicle or unloads from the haulage vehicle through the hydraulic cat ladder.

The hydraulic crawling ladder is in an unfolded state only in the process of loading and unloading goods, is in a folded state in other time periods, and is kept in the folded state through retraction or extension of the hydraulic cylinder, so that a hydraulic system on a vehicle is required to be in a working state all the time. However, in the long-time working process of the transport vehicle, if faults such as damage of a hydraulic pipeline and damage of a hydraulic oil cylinder occur, the hydraulic oil cylinder cannot keep the retraction state and the extension state, the hydraulic crawling ladder at the moment cannot keep the folding state, the hydraulic crawling ladder can be unfolded under the action of self gravity and contacts the road surface, and the driving safety is seriously influenced.

Disclosure of Invention

The utility model discloses an overcome above-mentioned technical problem's shortcoming, provide a take low flat carrier vehicle of hydraulic pressure cat ladder.

The utility model discloses a take low flat-bed transport vechicle of hydraulic pressure cat ladder, including frame, suspension assembly, wheel and hydraulic pressure cat ladder, the frame plays fixed and supporting role, and the suspension assembly sets up in the below at the frame rear portion, and the wheel sets up on the suspension assembly through the axle; the hydraulic crawling ladder is composed of two inclined crawling frames which have the same structure and are arranged in parallel, and the two inclined crawling frames are hinged to the tail part of the frame; the inclined climbing frame consists of a front climbing plate, a rear climbing plate, a rotary oil cylinder, a flattening oil cylinder and a triangular connecting piece, wherein the front end of the front climbing plate, the cylinder body of the rotary oil cylinder and the cylinder body of the flattening oil cylinder are hinged to the tail part of the frame, and the front end of the rear climbing plate is hinged to the rear end of the front climbing plate; the tail end of a telescopic rod of the rotary oil cylinder is hinged to the middle position of the lower surface of the front climbing plate, the tail end of a telescopic rod of the flattening oil cylinder is hinged to the middle of a triangular connecting piece, and two ends of the triangular connecting piece are respectively hinged to the rear end of the front climbing plate and the front end of the rear climbing plate; the method is characterized in that: the front climbing plate and the rear climbing plate are connected with the frame through a traction lock chain after being folded, a fixing ring is fixed on the side face of the tail portion of the frame, an upper pin shaft collar and a lower pin shaft collar are fixed on the side face of the rear climbing plate, pin shafts which can be inserted and pulled out are arranged in the upper pin shaft collar and the lower pin shaft collar, the front end of the traction lock chain is fixed on the fixing ring, the rear end of the traction lock chain is fixed on the pin shafts, and the tail ends of the pin shafts are provided with lock pins for limiting the pin shafts.

The utility model discloses a take low flatbed transport vechicle of hydraulic pressure cat ladder, the afterbody of frame is fixed with cat ladder fixed plate, rotary cylinder fixed plate and expansion cylinder fixed plate, and rotary cylinder fixed plate and expansion cylinder fixed plate are located the below of cat ladder fixed plate; the front end of the front climbing plate is hinged to the climbing ladder fixing plate, and the cylinder body of the rotary oil cylinder and the cylinder body of the flattening oil cylinder are respectively hinged to the rotary oil cylinder fixing plate and the unfolding oil cylinder fixing plate.

The utility model discloses a take low flat carrier vehicle of hydraulic pressure cat ladder, preceding climbing plate is articulated mutually through the pivot with back climbing plate, is fixed with the supporting shoe in the pivot, the end of back climbing plate is provided with the supporting plane, and when current climbing plate and back climbing plate were in development condition, the lower surface of supporting plane, supporting shoe and the lower surface of wheel were in on the same horizontal plane.

The utility model discloses a take low flat-bed transport vechicle of hydraulic pressure cat ladder, the end of lockpin is provided with carries out spacing contact pin to it.

The utility model discloses a take low flat-bed transport vechicle of hydraulic pressure cat ladder, the front end of frame is provided with the volume neck, is fixed with the traction seat on the volume neck, is fixed with towing pin down on the traction seat.

The beneficial effects of the utility model are that: the utility model discloses a take low flat-bed transport vechicle of hydraulic pressure cat ladder, be provided with the hydraulic pressure cat ladder, gu fixed ring, pull the chain, the round pin axle and on, the lower round pin axle collar, through launching the hydraulic pressure cat ladder, can realize that engineering vehicle loads on the vehicle or lift off from the vehicle along the hydraulic pressure cat ladder, after the hydraulic pressure cat ladder finishes using and folding, insert last through the terminal round pin axle of chain of pulling, in the lower round pin axle collar, can realize the fixed connection of hydraulic pressure cat ladder after folding and frame, when hydraulic pressure pipeline or hydraulic cylinder damage appear, because pull the pulling action of chain to the hydraulic pressure cat ladder, also can not make the hydraulic pressure cat ladder appear expandeing, stroke safety has effectively been guaranteed.

Drawings

Fig. 1 is a front view of a middle frame of the present invention;

fig. 2 is a top view of the middle frame of the present invention;

FIG. 3 is a front view of the low flat carrier vehicle with a hydraulic ladder of the present invention;

fig. 4 is a partially enlarged view of the area a in fig. 3.

In the figure: the device comprises a frame 1, a suspension assembly 2, wheels 3, a neck part 4, a traction seat 5, a traction pin 6, a ladder stand fixing plate 7, a rotary oil cylinder fixing plate 8, an expansion oil cylinder fixing plate 9, a front climbing plate 10, a rear climbing plate 11, a rotating shaft 12, a rotary oil cylinder 13, a flattening oil cylinder 14, a triangular connecting piece 15, a supporting block 16, a supporting plane 17, a fixing ring 18, a traction chain 19, a pin shaft 20, an upper pin shaft collar 21, a lower pin shaft collar 22, a locking pin 23 and a pin 24.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings and examples.

As shown in fig. 1 and fig. 2, the utility model discloses the front view and the top view of well frame, shown low flatbed transport vechicle is by frame 1, suspension assembly 2, wheel 3, forehead neck portion 4, fifth wheel 5 constitutes, frame 1 plays fixed and supporting role, suspension assembly 2 sets up in the below of frame 1 rear end, wheel 3 sets up on suspension assembly 2 through the axle, the front end of frame 1 is provided with forehead neck portion 4, fifth wheel 5 sets up on forehead neck portion 4, be fixed with towing pin 6 down on the fifth wheel 5, towing pin 6 is connected with the tractor, thus, under the traction of tractor, can pull frame 1 and walk.

In order to realize that a vehicle to be transported (such as a construction vehicle) is loaded on the frame 1 or unloaded from the frame 1, the rear end of the frame 1 is provided with a hydraulic climbing ladder. The hydraulic climbing ladder is composed of two parallel inclined climbing frames which respectively support tires or crawler belts on two sides of the engineering vehicle. A ladder stand fixing plate 7, a rotary oil cylinder fixing plate 8 and an expansion oil cylinder fixing plate 9 are fixed at the tail part of the rear end of the frame 1 to realize the connection and support of the inclined climbing frame.

As shown in fig. 3, the utility model discloses a take low flat-bed transport vechicle of hydraulic pressure cat ladder's main view, the regional local enlargements of A in fig. 3 have been given in fig. 4, shown slope is climbed the frame and is constituted by preceding climbing plate 10, back climbing plate 11, pivot 12, rotary cylinder 13, flat-open hydro-cylinder 14, triangular connector 15, and preceding climbing plate 10's front end articulates on cat ladder fixed plate 7, and the front end of back climbing plate 11 articulates in the rear end of preceding climbing plate 10. The cylinder body end of the rotary oil cylinder 13 is hinged on the rotary oil cylinder fixing plate 8, and the tail end of the telescopic rod of the rotary oil cylinder 13 is hinged on the middle position of the lower surface of the front climbing plate 10, so that when the telescopic rod of the rotary oil cylinder 13 extends, the front climbing plate 10 can be driven to rotate towards the position of the frame 1, and the folding of the inclined climbing frame is realized; when the telescopic rod of the rotary oil cylinder 13 retracts, the front climbing plate 10 can be driven to rotate backwards, and the height is reduced so as to realize the expansion of the inclined climbing frame by matching with the flattening oil cylinder 14.

The end of the telescopic rod of the shown flattening oil cylinder 14 is hinged to the middle of the triangular connecting piece 15, and two ends of the triangular connecting piece 15 are respectively hinged to the rear end of the front climbing plate 10 and the front end of the rear climbing plate 11, so that when the telescopic rod of the flattening oil cylinder 14 is extended, the rear climbing plate 11 can be driven to be unfolded relative to the front climbing plate 10, and when the telescopic rod of the flattening oil cylinder 14 is shortened, the rear climbing plate 11 can be driven to be folded relative to the front climbing plate 10.

Because the hydraulic crawling ladder is only in the unfolding state in the goods loading and unloading process, the hydraulic crawling ladder is in the folding state in other time, when a hydraulic pipeline or a hydraulic oil cylinder breaks down, the hydraulic crawling ladder can be unfolded under the action of self gravity and can be laid on the ground, and the running safety is influenced, therefore, in order to enable the hydraulic crawling ladder to be in the folding state when the hydraulic pipeline or the oil cylinder breaks down, the folded hydraulic crawling ladder is connected with the frame 1 through the traction chain 19.

A fixing ring 18 is fixed on the side face of the tail portion of the frame 1, an upper pin shaft ring 21 and a lower pin shaft ring 22 are fixed on the side face of the rear climbing plate 11, the upper pin shaft ring 21 and the lower pin shaft ring 22 are coaxially arranged, a pluggable pin shaft 20 is arranged in the upper pin shaft ring 21 and the lower pin shaft ring 22, one end of a traction chain 19 is fixed on the fixing ring 18, and the other end of the traction chain is fixed on the pin shaft 20. The pin 20 is provided at its end with a locking pin 23 which can be inserted and removed, and the pin 20 is arranged on the pin 20 to prevent the pin 20 from being removed from the lower pin collar 22. The latch 23 is shown with a pin 24 secured to the end to prevent the latch 23 from backing out of the pin 20.

The front climbing plate 10 and the rear climbing plate 11 are hinged through a rotating shaft 12, a supporting block 16 is fixed on the rotating shaft 12, a supporting plane 17 is arranged at the tail end of the rear climbing plate 11, and when the front climbing plate and the rear climbing plate are in an unfolded state, the supporting plane 17, the lower surface of the supporting block and the lower surface of the wheel 3 are in the same horizontal plane.

The front climbing plate 10 and the rear climbing plate 11 can be driven to be in an unfolded state through retraction of a telescopic rod of the rotary oil cylinder 13 and extension of a telescopic rod of the flattening oil cylinder 14, at the moment, a supporting plane 17 of the rear climbing plate 11 is in contact with the ground, at the moment, the engineering vehicle can climb onto the frame 1 along the hydraulic climbing ladder or can go down from the frame 1, and automatic loading and unloading of the vehicle to be transported are achieved. After the engineering vehicle is loaded and unloaded, the hydraulic climbing ladder can be driven to fold by extending the telescopic rod of the rotary oil cylinder 13 and retracting the telescopic rod of the flattening oil cylinder 14, and then the pin shaft 20 at the tail end of the traction chain 19 is inserted into the upper pin shaft ring 21 and the lower pin shaft ring 22, so that the state of the folded hydraulic climbing ladder is maintained.

Claims

1. The low flat transport vehicle with the hydraulic crawling ladder comprises a vehicle frame (1), a suspension assembly (2), wheels (3) and the hydraulic crawling ladder, wherein the vehicle frame plays a role in fixing and supporting, the suspension assembly is arranged below the rear portion of the vehicle frame, and the wheels are arranged on the suspension assembly through an axle; the hydraulic crawling ladder is composed of two inclined crawling frames which have the same structure and are arranged in parallel, and the two inclined crawling frames are hinged to the tail part of the frame; the inclined climbing frame is composed of a front climbing plate (10), a rear climbing plate (11), a rotary oil cylinder (13), a flattening oil cylinder (14) and a triangular connecting piece (15), wherein the front end of the front climbing plate, the cylinder body of the rotary oil cylinder and the cylinder body of the flattening oil cylinder are hinged to the tail part of the frame, and the front end of the rear climbing plate is hinged to the rear end of the front climbing plate; the tail end of a telescopic rod of the rotary oil cylinder is hinged to the middle position of the lower surface of the front climbing plate (10), the tail end of a telescopic rod of the flattening oil cylinder is hinged to the middle of a triangular connecting piece, and two ends of the triangular connecting piece are respectively hinged to the rear end of the front climbing plate and the front end of the rear climbing plate; the method is characterized in that: preceding climb the board and be connected with frame (1) through traction chain (19) after climbing the board folding, be fixed with solid fixed ring (18) on the side of frame afterbody, be fixed with on the side of back climbing board (11) and sell axle collar (21) and sell axle collar (22) down, be provided with round pin axle (20) that can insert and extract in last axle collar and the round pin axle collar down, the front end of traction chain is fixed in solid fixed ring (18), the rear end of traction chain is fixed in round pin axle (20), the end of round pin axle is provided with carries out spacing lockpin (23) to it.

2. The low flat carrier vehicle with the hydraulic ladder according to claim 1, wherein: a ladder stand fixing plate (7), a rotary oil cylinder fixing plate (8) and an expansion oil cylinder fixing plate (9) are fixed at the tail part of the frame (1), and the rotary oil cylinder fixing plate and the expansion oil cylinder fixing plate are positioned below the ladder stand fixing plate; the front end of the front climbing plate (10) is hinged on the climbing ladder fixing plate, and the cylinder body of the rotary oil cylinder (13) and the cylinder body of the flattening oil cylinder (14) are respectively hinged on the rotary oil cylinder fixing plate and the unfolding oil cylinder fixing plate.

3. A low flatbed transport vehicle with a hydraulic ladder according to claim 1 or 2, characterised in that: preceding board (10) and back climb board (11) and articulate mutually through pivot (12), are fixed with supporting shoe (16) on pivot (12), the end of back climb the board is provided with supporting plane (17), and when climbing the board with the back and being in the expansion state, the lower surface of supporting plane (17), supporting shoe and the lower surface of wheel (3) are in on the same horizontal plane.

4. A low flatbed transport vehicle with a hydraulic ladder according to claim 1 or 2, characterised in that: the tail end of the lock pin (23) is provided with a plug pin (24) for limiting the lock pin.

5. A low-flat vehicle as claimed in claim 1 or claim 2 with a hydraulic ladder, wherein: the front end of the frame (1) is provided with a forehead neck part (4), a traction seat (5) is fixed on the forehead neck part, and a traction pin (6) facing downwards is fixed on the traction seat.