A jacking and limiting device for a platform mounted on a road paving vehicle

Abstract

The present invention discloses a jacking and limiting device for a loading platform on a road paving vehicle, comprising: a supporting wheel, a transverse connecting rod, a supporting beam and a limiting seat; two parallel transverse connecting rods are installed on the bottom surface of the rotating platform; two supporting wheels are installed on each of the transverse connecting rods; the two supporting beams are fixed on the auxiliary beam of the frame; when the road paving vehicle is in a transporting state, the two supporting beams are respectively and parallelly opposite to the positions of the two transverse connecting rods, and each supporting beam conflicts with the two supporting wheels; the limiting seat is fixed to one end of the supporting beam; when the road paving vehicle is in a transporting state, the limiting seat contacts with a supporting wheel, and the limiting seat is used for unidirectional rotation limiting of the rotation of the rotating platform; the present invention can realize the functional integration of the jacking device and the limiting device, and can automatically retain and release the jacking of the rotating platform when the road paving vehicle is switched between the transporting and operating states.

Description

Technical Field

[0001] The invention belongs to the technical field of temporary road paving, and in particular relates to a jacking and limiting device for a mounting platform on a road paving vehicle. Background Art

[0002] In order to ensure that tracked and wheeled vehicles can quickly pass through low-load-carrying areas such as sand, mud, and snow, it is necessary to lay temporary movable pavement on the roadbed with poor load-carrying capacity to ensure the smooth passage of vehicles. At present, there are many temporary movable pavement vehicle-mounted laying and withdrawing devices at home and abroad. Their shortcomings are that their structure is complex, the integration of the jacking device and the limit device is not realized, and they occupy extra space and increase the weight of the structure. Summary of the invention

[0003] In view of this, the present invention provides a jacking and limiting device for a platform mounted on a road paving vehicle, which can realize the functional integration of the jacking device and the limiting device, and can automatically retain and release the jacking of the rotating platform when the road paving vehicle is switched between the transport and operation states.

[0004] The present invention is achieved through the following technical solutions:

[0005] A top supporting and limiting device for a platform mounted on a road paving vehicle comprises: a supporting wheel, a horizontal connecting rod, a supporting crossbeam and a limiting seat;

[0006] The peripheral equipment includes: a frame sub-beam, a slewing mechanism and a slewing platform of the road paving vehicle; the slewing mechanism is installed on the frame sub-beam, the slewing platform is installed on the slewing mechanism, and the slewing mechanism is used to drive the slewing platform to rotate;

[0007] Two parallel horizontal connecting rods are installed on the bottom surface of the rotary platform; two supporting wheels are installed on each of the horizontal connecting rods through a connecting assembly;

[0008] The two supporting crossbeams are fixed on the frame sub-beams; when the road paving vehicle is in the transport state, the two supporting crossbeams are respectively parallel to the positions of the two cross-links, and each supporting crossbeam is in conflict with the two supporting wheels, and the supporting supporting wheels are used to support the rotating platform, thereby realizing automatic tightening of the supporting crossbeams, the supporting wheels and the rotating platform;

[0009] The limit seat is fixed to one end of the supporting beam; when the road paving vehicle is in the transport state, the limit seat contacts a supporting wheel, and the limit seat is used to perform unidirectional rotation limit on the rotation of the rotating platform to ensure that the transport state of the rotating platform is in place.

[0010] Furthermore, the connection assembly includes: a double-ear plate and a pin;

[0011] The double-ear plate is a U-shaped frame, the two side plates of the U-shaped frame are ear plates, and the bottom plate of the U-shaped frame is fixed on the horizontal connecting rod;

[0012] The supporting wheel is pin-connected between two side plates of the corresponding double-ear plate through a pin shaft.

[0013] Furthermore, the connection method between the supporting wheel and the corresponding double-ear plate is as follows: the pin shaft is fixed between the two ear plates of the double-ear plate, and the supporting wheel is sleeved on the pin shaft through a shaft sleeve.

[0014] Furthermore, the two supporting cross beams are fixed to the frame sub-beam by welding.

[0015] Beneficial effects: (1) The supporting wheel, cross-link, supporting beam and limit seat of the present invention realize the functional integration of the jacking device and the limit device, and can eliminate the existing limit seat of the road paving vehicle to reduce the structural weight and redundant space; as the support equipment of our army's engineering corps, the present invention has a compact structure and is simple and convenient to operate, which can better ensure the mobility of military vehicles, and can also be used by armed police forces and government departments for disaster relief and other operations, saving more manpower and time for rescue.

[0016] (2) When the pavement paving vehicle is in the transport state, each supporting beam of the present invention is in conflict with two supporting wheels, and the supporting supporting wheels are used to support the rotating platform, thereby achieving automatic tightening of the supporting beams, supporting wheels and rotating platform, that is, realizing the supporting function of the device of this embodiment without the need for manual operation.

[0017] (3) When the road paving vehicle switches between the transport and operation states, the present invention can automatically retain and release the support for the rotating platform, realize the rotation of the rotating platform, and complete the road paving and removal operations; there is no need for manual tightening and releasing, and the operation is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is the front view of the jacking and limiting device in the transport state;

[0019] Figure 2 This is the left view of the top support limit device in the transportation state;

[0020] Figure 3 This is the main view of the connection between the supporting wheel and the horizontal connecting rod;

[0021] Figure 4 This is the left view of the connection between the supporting wheel and the horizontal connecting rod;

[0022] Figure 5 It is a schematic diagram of the contact between the supporting wheel and the supporting beam;

[0023] Figure 6 It is a schematic diagram of the connection between the limit seat and the supporting beam;

[0024] Figure 7 This is a schematic diagram of the jacking limit device in the operating state;

[0025] Among them, 1-slewing platform, 2-gasket, 3-double ear plate, 4-supporting wheel, 5-frame subbeam, 6-slewing mechanism, 7-cross connecting rod, 8-bolt A, 11-pin shaft, 12-shaft sleeve, 14-limiting seat, 15-support beam, 16-bolt B. DETAILED DESCRIPTION

[0026] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0027] This embodiment provides a jacking and limiting device for a platform mounted on a road paving vehicle, see the attached Figure 1-2 , including: a supporting wheel 4, a horizontal connecting rod 7, a double ear plate 3, a pin shaft 11, a shaft sleeve 12, a supporting beam 15 and a limit seat 14;

[0028] The peripheral equipment includes: a frame sub-beam 5, a slewing mechanism 6 and a slewing platform 1 of the road paving vehicle; the slewing mechanism 6 is installed on the frame sub-beam 5, and the slewing platform 1 is installed on the slewing mechanism 6, and the slewing mechanism 6 is used to drive the slewing platform 1 to rotate;

[0029] Two parallel horizontal connecting rods 7 are installed on the bottom surface of the rotary platform 1; two double-ear plates 3 are installed on each of the horizontal connecting rods 7; wherein the double-ear plates 3 are U-shaped frames, the two side plates of the U-shaped frame are ear plates, and the bottom plate of the U-shaped frame is fixed to the horizontal connecting rod 7 by bolts A8, washers 2 and nuts;

[0030] See attached Figure 3-4 The four supporting wheels 4 are respectively mounted on the four double-ear plates 3 in a one-to-one correspondence; each supporting wheel 4 is connected to the corresponding double-ear plate 3 in the following manner: the pin shaft 11 is fixed between the two ear plates of the double-ear plate 3, and the supporting wheel 4 is sleeved on the pin shaft 11 through a shaft sleeve 12, and the shaft sleeve 12 is used to reduce the friction between the supporting wheel 4 and the pin shaft 11 to achieve lubrication, so that the supporting wheel 4 can rotate around the axis of the pin shaft 11;

[0031] See attached Figure 5 , the two supporting beams 15 are fixed on the frame sub-beam 5 by welding; when the road paving vehicle is in the transport state, that is, the rotary platform 1 is not rotating, the two supporting beams 15 are respectively parallel to the positions of the two cross links 7, and each supporting beam 15 is in conflict with the two supporting wheels 4, and the rotary platform 1 is supported by the supporting supporting wheels 4, thereby realizing the automatic tightening of the supporting beams 15, the supporting wheels 4 and the rotary platform 1, that is, realizing the supporting function of the device of this embodiment;

[0032] See attached Figure 6The limit seat 14 is fixed to one end of the supporting beam 15 by a bolt B16; when the road paving vehicle is in the transport state, the limit seat 14 contacts a supporting wheel 4, and the limit seat 14 is used to perform unidirectional rotation limit on the rotation of the rotating platform 1 to ensure that the transport state of the rotating platform 1 is in place, that is, to realize the limit function of the device of this embodiment.

[0033] Working principle: When the road paving vehicle is in the transport state, the revolving platform 1, the revolving mechanism 6, and the frame subbeam 5 are in a stable state, and the supporting crossbeam 15 is parallel to the cross connecting rod 7. At this time, the supporting wheel 4 is in conflict with the supporting crossbeam 15 to support the supporting upper cantilever structure components on the revolving platform 1, preventing the supporting upper cantilever structure components from swinging up and down during transportation, and realizing the supporting function of the entire device; at the same time, the supporting wheel 4 is in contact with the limiting seat 14 to limit the entire device and ensure that the revolving platform 1 is in place in the transport state;

[0034] See attached Figure 7 When the road paving vehicle is in operation, the road surface needs to be laid on the rotary platform 1; at this time, the rotary mechanism 6 drives the rotary platform 1 to rotate, and the supporting beam 15 is no longer parallel to the horizontal connecting rod 7, and the contact between the supporting wheel 4 and the supporting beam 15 is automatically released; the supporting wheel 4 and the supporting beam 15 no longer support the rotary platform 1; after the rotary platform 1 rotates 90° and stabilizes, the road surface is laid or withdrawn on the rotary platform 1 to complete the road surface laying and withdrawal operations;

[0035] After the pavement paving and withdrawal operation is completed, the slewing mechanism 6 drives the slewing platform 1 to rotate and return to the position of the transport state; at this time, the supporting wheel 4 contacts the supporting beam 15 again to continue to realize the supporting function of the entire device; and at the same time, the supporting wheel 4 contacts the limiting seat 14 to ensure that the slewing platform 1 is in the transport state again.

[0036] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A jacking and limiting device for a platform mounted on a road paving vehicle, characterized in that: include: A supporting wheel (4), a horizontal connecting rod (7), a supporting beam (15) and a limiting seat (14); The peripheral equipment comprises: a vehicle frame sub-beam (5), a slewing mechanism (6) and a slewing platform (1) of a road paving vehicle; the slewing mechanism (6) is mounted on the vehicle frame sub-beam (5), the slewing platform (1) is mounted on the slewing mechanism (6), and the slewing mechanism (6) is used to drive the slewing platform (1) to rotate; Two parallel transverse connecting rods (7) are installed on the bottom surface of the rotary platform (1); two supporting wheels (4) are installed on each of the transverse connecting rods (7) via a connecting assembly; The two supporting crossbeams (15) are fixed on the vehicle frame subbeam (5); when the road paving vehicle is in a transporting state, the two supporting crossbeams (15) are respectively parallel to the positions of the two cross connecting rods (7), and each supporting crossbeam (15) is in contact with the two supporting wheels (4), and the supporting supporting wheels (4) are used to support the rotating platform (1), thereby realizing automatic tightening of the supporting crossbeams (15), the supporting wheels (4) and the rotating platform (1); The limit seat (14) is fixed to one end of the supporting crossbeam (15); when the road paving vehicle is in a transport state, the limit seat (14) contacts a supporting wheel (4), and the limit seat (14) is used to perform unidirectional rotation limit on the rotation of the rotating platform (1) to ensure that the transport state of the rotating platform (1) is in place; The connecting assembly comprises: a double-ear plate (3) and a pin shaft (11); The double-ear plate (3) is a U-shaped frame, the two side plates of the U-shaped frame are ear plates, and the bottom plate of the U-shaped frame is fixed on the horizontal connecting rod (7); The supporting wheel (4) is pin-connected between two side plates of the corresponding double-ear plate (3) via a pin shaft (11); The supporting wheel (4) is connected to the corresponding double-ear plate (3) in the following manner: the pin shaft (11) is fixed between the two ear plates of the double-ear plate (3), and the supporting wheel (4) is sleeved on the pin shaft (11) through a shaft sleeve (12); The two supporting cross beams (15) are fixed on the vehicle frame sub-beam (5) by welding.

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