CN220314826U - Lifting oil cylinder mounting structure - Google Patents

Abstract

The lifting oil cylinder mounting structure belongs to the field of transportation means, and is mounted on a freight container with a translation backward tilting self-unloading function, wherein the freight container is placed on a skeleton vehicle and comprises a lifting oil cylinder system, a container bracket, a translation oil cylinder and a container; the lifting oil cylinder system is arranged on the box bracket and comprises a connecting shaft, a piston rod, a multi-stage oil cylinder body, a mounting shaft, a slideway, an oil cylinder main body, a lifting clamping groove, a guide groove and a push-back clamping groove; the lifting oil cylinder can be horizontally placed, the occupied volume of a freight container is reduced, meanwhile, a connecting shaft type sliding mode is adopted, interference between the lifting oil cylinder and the container body during translation of the container body is reduced, the lifting oil cylinder is convenient to switch from a placing state to a lifting state, the lifting height is reduced, the lifting force is reduced, and the lifting force point and the gravity point of the cargo loaded in the container body are reasonably distributed; and the trouble caused by the movement of the hydraulic pipeline along with the lifting oil cylinder is eliminated.

Description

Lifting oil cylinder mounting structure

Technical Field

The utility model belongs to the field of transportation means, and particularly relates to a mounting structure of a lifting oil cylinder used on a translational rear-tipping self-unloading freight container.

Background

Freight containers are one of the common tools for transporting goods, and particularly in bulk transportation, the application of the freight containers is more extensive; for road transportation, the freight container is generally loaded on a skeleton car, and then the skeleton car is towed by a tractor for transporting the freight, that is, the freight container is separated from the skeleton car; in order to improve the transportation efficiency, people invent a freight container with a self-unloading function, especially in order to adapt to the tail unloading of the freight container, people invent a freight container with a self-unloading function which is tipped backwards, so that the unloading efficiency is greatly improved; in use, the existing backward-tipping self-unloading freight container mostly adopts a vertical lifting element, namely a vertically installed hydraulic cylinder as a lifting element, and the front part of the freight container is jacked up, so that the backward tipping of the freight container is realized, and the backward unloading function is realized; this has the disadvantage that the working stroke requirement for the hydraulic ram as lifting element is high, since the freight container is mostly much longer in front-to-back than in left-to-right (here, both in front-to-back and left-to-right are based on the direction of travel of the vehicle), which requires a high lifting stroke to achieve reclined discharge; furthermore, the lifting force requirement on the hydraulic cylinder is high; moreover, due to the two requirements, the hydraulic oil cylinder is large in size and heavy in weight, and for the freight container with the translation and backward turning functions, the hydraulic oil pipe needs to move along with the hydraulic oil cylinder, so that great trouble is caused to the installation and placement of a hydraulic system.

Disclosure of Invention

Aiming at the problems of the existing backward tilting translation self-unloading freight container, the utility model provides a lifting cylinder which can not translate along with the translation of the freight container, and is not in a lifting state, and meanwhile, the lifting cylinder is horizontally arranged, so that the occupied volume of the container body can be reduced, and the small lifting stroke and the small lifting force can be kept.

In order to achieve the above purpose, the technical scheme of the utility model is as follows: the lifting oil cylinder mounting structure is characterized in that the lifting oil cylinder is mounted on a freight container body with a translation backward tilting self-unloading function, and the freight container body is placed on a skeleton car and comprises a lifting oil cylinder system, a container body bracket, a translation oil cylinder and a freight container body; the lifting oil cylinder system is arranged on the box bracket and comprises a connecting shaft, a piston rod, an oil cylinder main body, an installation shaft, a slideway and a lifting clamping groove; the connecting shaft is arranged at the end part of the piston rod, is connected with the end part of the piston rod and is vertical to the piston rod; the piston rod is arranged in the cylinder body through a multi-stage oil cylinder body; the mounting shaft is arranged on the oil cylinder main body, is positioned on the outer circumference of the oil cylinder main body, is perpendicular to the axial line of the oil cylinder main body, and is positioned on the same cross section of the oil cylinder main body; the slideway is arranged at the bottom of the freight container body and is connected with the freight container body; the two slide ways are respectively positioned at two ends of the connecting shaft and can limit the up-and-down movement range of the connecting shaft; the oil cylinder main body is arranged on the box bracket and is connected with the mounting rack fixed on the box bracket through the mounting shaft, and can swing on the box bracket along the mounting shaft; the lifting clamping groove is arranged at the front end of the slideway and consists of two or more sheet-shaped bodies with notch grooves, the size and the shape of the notch grooves are matched with those of the connecting shaft, and the minimum distance between the two sheet-shaped bodies close to the piston rod is larger than the length of the connecting shaft; the inner side of the slideway is provided with a guide groove, and two ends of the connecting shaft are in sliding connection with the guide groove; the end part of the slideway is provided with a push-back clamping groove, and the push-back clamping groove and the lifting clamping groove are positioned at the other end of the slideway; the shape and the size of the groove of the push-back clamping groove are matched with the cross section shape and the size of the connecting shaft; the distance between the lifting clamping groove and the push-back clamping groove is larger than the effective stroke of the horizontal pushing oil cylinder, namely larger than the maximum translation distance of the freight container body.

Further, the box bracket is placed on the skeleton car and is clamped with the skeleton car, so that the box bracket can be quickly separated from the skeleton car; the translation oil cylinder is arranged on the box bracket and connected with the box bracket, a piston rod of the translation oil cylinder is connected with the freight box, and when the piston rod moves, the translation oil cylinder can drive the freight box to translate on the box bracket; the box body is a cavity body with an upper opening and a rear door.

Furthermore, the two ends of the connecting shaft are rotatably connected with sliding plates, the two ends of the sliding plates are provided with guide wheels, and the guide wheels roll in guide grooves on the inner sides of the sliding ways.

Further, the lower end of the sheet body of the lifting clamping groove is rotationally connected with a limiting plate, one end of the limiting plate, which is close to the closing part of the lifting clamping groove, is inclined upwards in a free state, and one end of the limiting plate, which is far away from the closing part of the lifting clamping groove, is lower than the mounting frame in a free state.

Further, the connecting shaft is a circular section shaft.

Further, the mounting shafts are arranged on two sides of the oil cylinder main body and extend to two sides.

Further, more than one push-back clamping groove is arranged.

Advantageous effects

The lifting oil cylinder has the beneficial effects that the lifting oil cylinder can be horizontally placed, the occupied volume of a freight container is reduced, meanwhile, a connecting shaft type sliding mode is adopted, interference between the lifting oil cylinder and the container body during container body translation is reduced, the lifting oil cylinder is convenient to switch from a placing state to a lifting state, the lifting height (because the container body translation is increased) is reduced, the lifting force is reduced, and the lifting force point and the gravity point of the container body for carrying goods are reasonably distributed; and the trouble caused by the movement of the hydraulic pipeline along with the lifting oil cylinder is eliminated.

Drawings

FIG. 1 is a schematic illustration of the use of the present utility model;

FIG. 2 is a schematic view of a lift cylinder mounting structure of the present utility model;

FIG. 3 is an enlarged partial schematic view of FIG. 2;

FIG. 4 is a schematic view of the case carrier of FIG. 2 when moved rearward;

FIG. 5 is an enlarged partial schematic view of FIG. 4;

in the figure: 1-subframe, 2-lifting cylinder, 3-translation cylinder, 4-box bracket, 5-box, 21-piston rod, 22-connecting axle, 23-slide, 24-leading wheel, 25-slide, 26-lifting clamping groove, 27-limiting plate, 28-mounting bracket, 29-mounting axle, 30-back pushing clamping groove.

Detailed Description

The lift cylinder mounting structure of the present utility model will be described in more detail with reference to the accompanying drawings by way of specific embodiments.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In order to better illustrate the technical scheme of the utility model, a specific embodiment of the utility model is further illustrated by referring to the drawings, as shown in fig. 1-5, in this example, the subframe 1 is optionally placed on a skeleton car, and is clamped with the skeleton car, so that the subframe can be quickly separated from the skeleton car, and the bottom of the freight box 5 is fixed on the box bracket 4, so that the stability of the freight box 5 in translation is ensured; the translation oil cylinder 3 is arranged on the auxiliary frame 1 and is connected with the auxiliary frame 1, a piston rod of the translation oil cylinder 3 is connected with the bottom of the box body 5, and when the piston rod moves, the box body 5 can be driven to translate on the auxiliary frame 1; the box body 5 is a cavity body with an upper opening and a rear door, so that the implementation of the subframe 1 and the translation cylinder 3 is completed.

The lifting oil cylinder 2 system is arranged on the auxiliary frame 1, the connecting shaft 22 is arranged at the end part of the piston rod 21, is connected with the end part of the piston rod 21 and is vertical to the piston rod 21; the piston rod 21 is arranged in the last cylinder body of the multi-stage cylinder body and can move in the last cylinder body; the multistage oil cylinder body is sequentially arranged in the oil cylinder main body 2 and is sequentially nested; the mounting shaft 29 is arranged on the oil cylinder main body 2, is positioned on the outer circumference of the oil cylinder main body 2, is perpendicular to the axial line of the oil cylinder main body 2, and is positioned on the same cross section of the oil cylinder main body 2; the slideway 25 is arranged at the bottom of the box body 5 and is connected with the box body 5; the two slide ways 25 are respectively positioned at two ends of the connecting shaft 22, and can limit the up-and-down movement range of the connecting shaft 22; the oil cylinder main body 2 is arranged on the auxiliary frame 1 through an installation shaft 29, and the end part of the installation shaft 29 is rotatably connected with a mounting frame 28 fixed on the auxiliary frame 1 and can swing on the auxiliary frame 1 along the installation shaft 29; the lifting clamping groove 26 is arranged at the front end of the slideway 25 and consists of two or more flaky bodies with notch grooves, the size and shape of the notch grooves are matched with those of the connecting shaft 22, and the minimum distance between the two flaky bodies close to the piston rod 21 is larger than the diameter of the piston rod 21; the lower end of the sheet-shaped body of the lifting clamping groove 26 is rotatably connected with a limiting plate 27, one end of the limiting plate 27, which is close to the closed part of the lifting clamping groove 26, is inclined upwards in a free state, and the horizontal height of one end of the limiting plate 27, which is far away from the closed part of the lifting clamping groove 26, is lower than that of the mounting frame 28 in the free state; a guide groove is formed in the inner side of the slideway 25, and can accommodate the connecting shaft 22 (the two ends of the connecting shaft 22 are rotatably connected with the sliding plate 23, the two ends of the sliding plate 23 are provided with the guide wheels 24, and the guide wheels 24 at the two ends can be accommodated to roll in the guide groove) to slide in the guide groove; a push-back clamping groove 30 is arranged at the end part of the slideway 25, and is positioned at the other end of the slideway 25 opposite to the lifting clamping groove 26; the shape and the size of the groove of the push-back clamping groove 30 are matched with the cross section shape and the size of the connecting shaft 21; the distance between the lifting clamping groove 26 and the push-back clamping groove 30 is larger than the effective stroke of the horizontal pushing cylinder, namely larger than the maximum translation distance of the box body 5, so that the implementation of the lifting cylinder 2 is completed.

When the lifting oil cylinder 2 is in an approximately horizontal state, namely, a position with an included angle smaller than 30 degrees with a horizontal plane, the translation oil cylinder 3 is started to push the box body 5 and the box body bracket 4 to move backwards on the auxiliary frame 1, the length of the slideway 25 is longer than the stroke of the translation oil cylinder 3, at the moment, the lifting clamping groove 26 is not contacted with the connecting shaft 22, the lifting clamping groove 26 fixed at the bottom of the box body 5 moves backwards along with the pushing of the translation oil cylinder 3, after the lifting clamping groove 26 is clamped with the connecting shaft 22, the connecting shaft 22 is continuously pushed to move backwards along with the box body 5, and the connecting shaft 22 is arranged at the upper end of the piston rod 21 to drive the piston rod 21 to move backwards along with the connecting shaft and shrink inwards to cause the whole lifting oil cylinder 2 to swing around the mounting shaft 29, and the swinging direction is that the upper end is backwards and the lower end is forwards; when the lifting state is swung, the stroke of the translation oil cylinder 3 is ended, the connecting shaft 22 is clamped with the lifting clamping groove 26, the front end of the limiting plate 27 automatically inclines upwards to prop against the rear side of the connecting shaft under the action of gravity, the limiting effect is achieved, the connecting shaft 22 is prevented from shifting in the lifting process, the lifting oil cylinder 2 is started, the piston rod 21 drives the connecting shaft 22, the connecting shaft 22 drives the lifting clamping groove 26, the lifting clamping groove 26 drives the box body 5 to move upwards, the box body 5 turns around the turning shaft to be a rotating shaft until unloading is completed, and the lifting oil cylinder 2 returns; at this time, the translation cylinder 3 moves reversely to drive the box 5 to move forward, the connecting shaft 22 moves forward along with the lifting clamping groove 26 under the action of the limiting plate 27, the lifting cylinder 2 swings reversely at the same time, when the lifting cylinder moves to the position where the mounting frame 28 contacts with the lower part of the limiting plate 27, the mounting frame 28 pushes the lower part of the limiting plate 27 to rotate upwards, so that the upper part of the limiting plate 27 rotates downwards to cancel the limiting effect on the connecting shaft 22, the connecting shaft 22 moves backwards along the guiding groove away from the lifting clamping groove 26 until the push-back clamping groove 30 is clamped with the connecting shaft 22, the upper part of the lifting cylinder 2 is pushed to move forward, the whole lifting cylinder 2 continues to swing reversely around the mounting shaft 24 until the box 5 returns to the original position, the unloading is completed once, and the backward-moving and turning-over self-unloading function of the freight box can be realized by repeating the above processes.

Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, whether direct or indirect.

While the exemplary embodiments of the present utility model have been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that many changes and modifications can be made to the specific embodiments described above without departing from the spirit of the utility model, and that many combinations of technical features and structures can be made without departing from the scope of the utility model.

Claims (7)

1. The lifting oil cylinder mounting structure is characterized in that the lifting oil cylinder is mounted on a freight container body with a translation backward tilting self-unloading function, and the freight container body is placed on a skeleton car: the device comprises a lifting oil cylinder system, a subframe, a translation oil cylinder and a freight container body; the lifting oil cylinder system is arranged on the auxiliary frame and comprises a connecting shaft, a piston rod, an oil cylinder main body, an installation shaft, a slideway and a lifting clamping groove; the connecting shaft is arranged at the end part of the piston rod, is connected with the end part of the piston rod and is vertical to the piston rod; the piston rod is arranged in the cylinder body through a multi-stage oil cylinder body; the mounting shaft is arranged on the oil cylinder main body, is positioned on the outer circumference of the oil cylinder main body, is perpendicular to the axial line of the oil cylinder main body, and is positioned on the same cross section of the oil cylinder main body; the slideway is arranged at the bottom of the freight container body and is connected with the freight container body; the two slide ways are respectively positioned at two ends of the connecting shaft and can limit the up-and-down movement range of the connecting shaft; the oil cylinder main body is arranged on the auxiliary frame, is connected with the mounting frame fixed on the auxiliary frame through the mounting shaft and can swing on the auxiliary frame along the mounting shaft; the lifting clamping groove is arranged at the front end of the slideway and consists of two or more flaky bodies with notch grooves, the size and the shape of the notch grooves are matched with those of the connecting shaft, and the minimum distance between the two flaky bodies close to the piston rod is larger than the diameter of the piston rod; the inner side of the slideway is provided with a guide groove, and two ends of the connecting shaft are in sliding connection with the guide groove; the end part of the slideway is provided with a push-back clamping groove, and the push-back clamping groove and the lifting clamping groove are positioned at the other end of the slideway; the shape and the size of the groove of the push-back clamping groove are matched with the cross section shape and the size of the connecting shaft; the distance between the lifting clamping groove and the push-back clamping groove is larger than the effective stroke of the horizontal pushing oil cylinder, namely larger than the maximum translation distance of the freight container body.

2. The lift cylinder mounting structure of claim 1, wherein: the auxiliary frame is arranged on the skeleton car and is clamped with the skeleton car, so that the auxiliary frame can be quickly separated from the skeleton car; the translation oil cylinder is arranged on the auxiliary frame and connected with the auxiliary frame, a piston rod of the translation oil cylinder is connected with the freight container body, and when the piston rod moves, the translation oil cylinder can drive the freight container body to translate on the auxiliary frame; the box body is a cavity body with an upper opening and a rear door.

3. The lift cylinder mounting structure of claim 1, wherein: the two ends of the connecting shaft are rotatably connected with sliding plates, guide wheels are arranged at the two ends of the sliding plates, and the guide wheels roll in guide grooves at the inner sides of the sliding ways.

4. The lift cylinder mounting structure of claim 1, wherein: the lower end of the sheet body of the lifting clamping groove is rotationally connected with a limiting plate, one end of the limiting plate, which is close to the closing part of the lifting clamping groove, is inclined upwards in a free state, and one end of the limiting plate, which is far away from the closing part of the lifting clamping groove, is lower than the mounting frame in a free state.

5. The lift cylinder mounting structure of claim 1, wherein: the connecting shaft is a circular section shaft.

6. The lift cylinder mounting structure of claim 1, wherein: the installation shafts are arranged on two sides of the oil cylinder main body and extend to two sides.

7. The lift cylinder mounting structure of claim 1, wherein: the number of the push-back clamping grooves is more than one.