CN210101760U - Side curtain semi-trailer and girder thereof - Google Patents
Side curtain semi-trailer and girder thereof Download PDFInfo
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- CN210101760U CN210101760U CN201920839802.XU CN201920839802U CN210101760U CN 210101760 U CN210101760 U CN 210101760U CN 201920839802 U CN201920839802 U CN 201920839802U CN 210101760 U CN210101760 U CN 210101760U
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- girder
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Abstract
The utility model provides a side curtain semitrailer and girder thereof. The girder comprises an upper wing plate, a lower wing plate and a web plate assembly vertically connecting the upper wing plate and the lower wing plate. The web component comprises two reinforcing webs which are oppositely arranged and a middle web which is clamped between the two reinforcing webs. The reinforcing web plate is positioned at the front end of the girder and is provided with a connecting part for connecting the middle web plate; the upper end and the lower end of each reinforcing web plate are respectively and correspondingly connected with the upper wing plate and the lower wing plate. The middle web plate is fixedly connected with the connecting part; the upper end and the lower end of the middle web plate are respectively connected with the upper wing plate and the lower wing plate. The side curtain semitrailer can obtain higher girder bearing strength by the girder with the two reinforcing webs, meets the requirement of large vehicle loading capacity, and improves economic benefit.
Description
Technical Field
The utility model relates to a haulage vehicle technical field, in particular to side curtain semitrailer and girder thereof.
Background
With the rapid development of the modern logistics industry, the demand of the side curtain vehicle as an important tool for freight transportation is increasing. The curtain cloth of the side curtain vehicle can be quickly pulled open, and the side curtain vehicle has the advantage of high-efficiency loading and unloading. On the premise of meeting the vehicle road regulations, in order to meet the requirement of large loading capacity, the side curtain vehicle needs to reduce the height of the vehicle frame properly, so the requirement on the vehicle frame is also improved.
However, conventional frame rails are typically in the form of welded i-beams. Under the condition of reducing the height of the frame to meet the requirement of large loading capacity, the pressure to be born by the girder is correspondingly increased, but the requirement of a large-capacity side curtain vehicle cannot be met by the integral strength of the traditional girder. Particularly, the front end part of the crossbeam is the most unique and fragile part of the whole frame design, and is easy to break under the condition of excessive load, thereby influencing the normal use of the vehicle.
SUMMERY OF THE UTILITY MODEL
A first object of the utility model is to provide a girder to solve traditional i shape girder among the prior art and reducing under the condition of frame height in order to satisfy big load capacity, lead to the fragile front end atress of girder and cracked problem easily.
A second object of the present invention is to provide a side curtain semi-trailer with the above girder, which has the advantages of the above girder.
In order to solve the technical problem, the utility model adopts the following technical scheme:
a girder comprises an upper wing plate, a lower wing plate and a web plate assembly vertically connecting the upper wing plate and the lower wing plate;
the web plate assembly comprises two reinforcing web plates which are oppositely arranged and a middle web plate which is clamped between the two reinforcing web plates;
the reinforcing web plate is positioned at the front end of the girder and is provided with a connecting part for connecting the middle web plate; the upper end and the lower end of each reinforcing web plate are respectively and correspondingly connected with the upper wing plate and the lower wing plate;
the middle web plate is fixedly connected with the connecting part; the upper end and the lower end of the middle web plate are respectively connected with the upper wing plate and the lower wing plate.
According to one embodiment of the present invention,
the two reinforcing webs are parallel.
According to an embodiment of the present invention, the connecting portion extends from the rear end of the reinforcing web in a bent manner; the two connecting parts are oppositely bent, and a vertical gap for accommodating and clamping the middle web plate is formed between the two connecting parts.
According to an embodiment of the present invention, the connecting portion is gradually closed in a backward direction.
According to the utility model discloses an embodiment, middle web is located on the central longitudinal axis of girder, two strengthen the web and set up for middle web symmetry.
According to an embodiment of the invention, the intermediate web is located on a central longitudinal axis of the girder; the reinforcing web is obliquely arranged relative to the middle web; the two reinforcing webs are gradually closed in the backward direction to clamp the middle web.
According to an embodiment of the present invention, the two reinforcing webs are connected with the middle web to form a Y-shaped structure.
According to an embodiment of the present invention, the lower wing plate includes a straight section extending in sequence in the longitudinal direction, a transition section bent and extended downward from the rear end of the straight section, and a bent section further bent and extended downward from the rear end of the transition section; the included angle between the bending section and the straight section is larger than the included angle between the transition section and the straight section.
According to an embodiment of the utility model, the middle web have with the lower tip of bending section radian looks adaptation, with bending section zonulae occludens.
The embodiment also provides a side curtain semi-trailer, which comprises a frame and the crossbeam; the crossbeam extends along the longitudinal direction of the frame.
According to the above technical scheme, the utility model provides a pair of girder has following advantage and positive effect at least:
the girder improves the structure, the number of the webs is increased at the front end of the girder, and the single web of the traditional I-shaped beam is replaced by two oppositely arranged reinforcing webs. Obviously, two reinforcing webs can provide the reinforcing effect for the weak department of atress of girder front end, guarantee the bearing strength of girder. Specifically, the web plate assembly of the girder comprises two oppositely arranged reinforcing web plates, and the two reinforcing web plates can effectively share the stress borne by the front end of the girder and improve the stress condition of the girder. The reinforcing web plate is specifically positioned at the front end of the crossbeam. Two reinforcing webs correspond through with last pterygoid lamina and lower pterygoid lamina and are connected to enclose jointly and close a box structure that forms, this box structure can resist effectively because of the deformation that the stress leads to, improves the bending strength of girder, improves the holistic bearing strength of girder, prolongs the life of girder.
The utility model also provides a side curtain semitrailer, it has above-mentioned girder. The side curtain semitrailer can obtain higher girder bearing strength by the girder with the two reinforcing webs, meets the requirement of large vehicle loading capacity, and improves economic benefit.
Drawings
Fig. 1 is a schematic structural view of a whole girder in an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a girder with an upper wing plate removed according to an embodiment of the present invention.
Fig. 3 is a cross-sectional view of the front end of the girder according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a connecting portion in an embodiment of the present invention.
Fig. 5 is a cross-sectional view of the rear end of the girder according to an embodiment of the present invention.
The reference numerals are explained below: 100-girder, 1-web plate component, 11-reinforcing web plate, 111-connecting part, 112-vertical gap, 12-middle web plate, 2-upper wing plate, 3-lower wing plate, 31-straight section, 32-transition section and 33-bending section.
Detailed Description
Exemplary embodiments that embody features and advantages of the present invention will be described in detail in the following description. It is to be understood that the invention is capable of other and different embodiments and its several details are capable of modification without departing from the scope of the invention, and that the description and drawings are to be regarded as illustrative in nature and not as restrictive.
The embodiment provides a side curtain semi-trailer and girder thereof, and the side curtain semi-trailer comprises a vehicle body and a girder arranged on the vehicle body. The girder is used as an important bearing structure of the semi-trailer vehicle, and the quality of the girder influences the driving safety of the whole vehicle. The embodiment improves the traditional I-shaped girder and provides a novel double-web girder. Novel two web girders are through the quantity that has increased the web at the girder front end, for the weak department of atress of girder front end provides the reinforcing effect, guarantee the bearing strength of girder, satisfy the demand that the loading capacity of side curtain semitrailer is big.
The girder of the present invention is specifically described below by way of specific embodiments. To the utility model provides a side curtain semitrailer can set up on the automobile body and form by the girder in following embodiment.
Referring to fig. 1 and 2, the present embodiment provides a girder 100, which includes an upper wing plate 2, a lower wing plate 3, and a web assembly 1 vertically connecting the upper wing plate 2 and the lower wing plate 3.
The web assembly 1 includes two oppositely disposed reinforcing webs 11 and an intermediate web 12 sandwiched between the two reinforcing webs 11. The reinforcing web 11 and the middle web 12 are both vertically connected with the upper wing plate 2 and the lower wing plate 3, and the reinforcing web 11 and the middle web 12 are arranged in parallel.
As can be seen in the perspective view of fig. 1, the reinforcing web 11 is provided at the front end of the girder 100, and the intermediate web 12 is provided at the rear end. The front end of the girder 100 is close to the semitrailer head, so that the girder can be pulled by the tractor, is a weak area of the girder, and is easy to break due to overlarge load. The reinforcing web 11 arranged at the front end of the girder 100 can clearly aim at the weak stress part at the front end of the girder, thereby achieving the most effective reinforcing effect.
It should be noted that the "front and rear" directions are based on the front and rear of the driving direction of the semitrailer, and all the directions appearing in the whole text are based on the above unless otherwise specified.
The intermediate web 12 is located on a central longitudinal axis of the longerons 100, as viewed from the entirety of the longerons 100. The two reinforcing webs 11 are symmetrically distributed relative to the central longitudinal axis, so that the stress is more balanced, the stress is uniform, the stress borne by the front end of the girder 100 can be effectively shared, and the stress condition of the girder 100 is improved.
In addition, the reinforcing web 11 is not only located at the front end of the girder, but also the length of the reinforcing web 11 substantially occupies most of the length of the whole girder 100 to ensure a good reinforcing effect.
With further reference to fig. 3, specifically, the front end of the reinforcing web 11 exceeds the front ends of the upper and lower wing plates 2, 3, while the rear end of the reinforcing web 11 has a connecting portion 111 for connecting the intermediate web 12. The upper and lower ends of the reinforcing web 11 are respectively and correspondingly connected with the upper wing plate 2 and the lower wing plate 3. Thus, two relatively parallel reinforcing webs 11 together with the upper wing plate 2 and the lower wing plate 3 can enclose a rectangular box structure. The rectangular box structure can effectively resist deformation caused by stress, improve the bending strength of the girder 100, improve the integral bearing strength of the girder 100 and prolong the service life of the girder 100.
Referring to fig. 4, the front end of the intermediate web 12 is connected to the connecting portion 111, and is thereby connected and fixed to the reinforcing web 11. It is worth to be noted that the front end of the middle web 12 is close to the rear end of the reinforcing web 11, and the space formed between the two reinforcing webs 11 is hollow; the two reinforcing webs 11 are connected with the intermediate web 12 to form a Y-shaped structure. Since the length of the intermediate web 12 need not be excessively long, unnecessary weight can be reduced to reduce the weight of the girder 100 itself without reducing the strength of the girder 100. Of course, the length of the intermediate web 12 may also be specifically set according to specific operating conditions.
In the present embodiment, the reinforcing web 11 is arranged parallel to the intermediate web 12. In other embodiments, the reinforcing webs 11 are disposed obliquely relative to the intermediate web 12, and the two reinforcing webs 11 gradually converge in the rearward direction to sandwich the intermediate web 12. The two inclined reinforcing webs 11 may be formed like a tapered structure, and are not limited to a rectangular box structure.
Referring again to fig. 4, fig. 4 shows a specific structure of the connection portion 111 of the reinforcing web 11.
The connecting portion 111 is formed by integrally bending and extending from the rear end of the reinforcing web 11, and the connecting portion 111 has a curvature. The two connecting portions 111 are bent oppositely. The connecting portions 111 are tapered in the rearward direction such that a vertical gap 112 is formed between the connecting portions 111 for receiving and retaining the central web 12. The width of the vertical gap 112 is adapted to the thickness of the intermediate web 12, so that the intermediate web 12 can be stably clamped between the two connecting portions 111 through the vertical gap 112.
Further, in order to avoid stress concentration and ensure the stability of the connection, the bending part of the connection part 111 is in arc transition.
In the present embodiment, the connection portion 111 is not limited to the above-described bent structure having a curvature. The connecting portion 111 may also be an L-shaped structure, and two opposite connecting portions 111 form a rectangular semi-enclosed structure. The L-shaped connecting portion 111 can form a vertical slot 112 for receiving and holding the intermediate web 12 and is connected perpendicularly to the intermediate web 12.
Referring to fig. 1 again, the present embodiment also makes a corresponding improvement on the lower wing plate 3, which specifically includes: the lower wing plate 3 includes a straight section 31 extending in the longitudinal direction, a transition section 32 extending from the rear end of the straight section 31 and bent downward, and a bent section 33 extending from the rear end of the transition section 32 and further downward.
The bending structure of the lower wing plate 3 is designed to aim at: when the girder 100 is stressed integrally, the transition section 32 and the bending section 33 can play a transition role, so that the stress acting on the lower wing plate 3 is distributed uniformly in a stepped manner; stress concentration is avoided, stress is dispersed, the lower wing plate 3 cannot be seriously deformed due to stress, and the service life of the lower wing plate is prolonged.
Wherein the straight section 31 extends in the same direction as the longitudinal axis of the lower panel 3.
The included angle between the transition section 32 and the straight section 31 is smaller, and correspondingly, the downward bending radian of the transition section 32 is smaller, and the gentle radian of the transition section makes the change of the stress smooth.
The included angle between the bending section 33 and the straight section 31 is larger than the included angle between the transition section 32 and the straight section 31. Correspondingly, the downward bending radian of the bending section 33 is also large, and the bending section 33 is an arc transition section 32.
Referring to fig. 5 in particular, the curvature of the bending section 33 is also represented by the distance between the bending section 33 and the upper wing plate 2, the distance between the bending section 33 and the upper wing plate 2 is greater than the distance between the transition section 32 and the straight section 31 and the upper wing plate 2, and the distance between the bending section 33 and the upper wing plate 2 is approximately twice the distance between the straight section 31 and the upper wing plate 2.
In this embodiment, the intermediate web 12 has a lower end adapted to the curvature of the bend 33 to tightly connect with the bend 33. In this manner, the rear end of the intermediate web 12 also has a curvature that is adapted to the transition sections 32 and the bend sections 33. Accordingly, when the distance between the bent section 33 and the upper wing plate 2 is much greater than the distance between the transition section 32 and the flat section 31 and the upper wing plate 2, the overall height of the intermediate web 12 corresponding to the bent section 33 is also higher than the height of the intermediate web 12 corresponding to the transition section 32 and the flat section 31.
In summary, the present embodiment provides a girder 100 having at least the following advantages and positive effects:
first, the girder 100 replaces the single web of the conventional i-beam with two oppositely disposed reinforcing webs 11 by increasing the number of webs at the front end of the girder 100. Obviously, the two reinforcing webs 11 can provide a reinforcing effect for the weak stressed part at the front end of the girder 100, and ensure the bearing strength of the girder 100. Specifically, the web assembly 1 of the girder 100 includes two oppositely disposed reinforcing webs 11, and the two reinforcing webs 11 can effectively share the stress borne by the front end of the girder 100, so as to improve the stress condition of the girder 100. The reinforcing web 11 is located in particular at the front end of the girder 100. The two reinforcing webs 11 are correspondingly connected with the upper wing plate 2 and the lower wing plate 3 to jointly enclose and form a frame structure, and the frame structure can effectively resist deformation caused by stress, improve the bending strength of the girder 100, improve the integral bearing strength of the girder 100 and prolong the service life of the girder 100.
Secondly, the lower wing plate 3 is correspondingly modified, and the rear end of the lower wing plate 3 is provided with a bending section 33 which is bent downwards and extends out. The purpose is as follows: when the girder 100 is wholly stressed, the bending section 33 can play a transition role, so that the stress acting on the lower wing plate 3 is uniformly distributed in a stepped manner, the stress concentration is avoided, the stress is dispersed, the lower wing plate 3 cannot be seriously deformed due to stress, and the service life of the lower wing plate is prolonged.
Finally, the present embodiment also provides a side curtain semi-trailer having the girder 100. The side curtain semitrailer can obtain higher bearing strength of the girder 100 by the girder 100 with the two reinforcing webs 11, meet the requirement of large vehicle loading capacity and improve economic benefit.
While the present invention has been described with reference to several exemplary embodiments, it is understood that the terminology used is intended to be in the nature of words of description and illustration, rather than of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.
Claims (10)
1. A girder, its characterized in that: the wing plate assembly comprises an upper wing plate, a lower wing plate and a web plate assembly vertically connected with the upper wing plate and the lower wing plate;
the web plate assembly comprises two reinforcing web plates which are oppositely arranged and a middle web plate which is clamped between the two reinforcing web plates;
the reinforcing web plate is positioned at the front end of the girder and is provided with a connecting part for connecting the middle web plate; the upper end and the lower end of each reinforcing web plate are respectively and correspondingly connected with the upper wing plate and the lower wing plate;
the middle web plate is fixedly connected with the connecting part; the upper end and the lower end of the middle web plate are respectively connected with the upper wing plate and the lower wing plate.
2. A longeron according to claim 1, wherein:
the two reinforcing webs are parallel.
3. A girder according to claim 2, wherein:
the connecting part is bent and extends out of the rear end of the reinforcing web plate;
the two connecting parts are oppositely bent, and a vertical gap for accommodating and clamping the middle web plate is formed between the two connecting parts.
4. A girder according to claim 3, wherein:
the two connecting parts are gradually closed in the backward direction.
5. A girder according to claim 2, wherein:
the intermediate web is located on a central longitudinal axis of the longerons,
the two reinforcing webs are symmetrically arranged relative to the middle web.
6. A longeron according to claim 1, wherein:
the middle web plate is positioned on the central longitudinal axis of the crossbeam;
the reinforcing web is obliquely arranged relative to the middle web; the two reinforcing webs are gradually closed in the backward direction to clamp the middle web.
7. A longeron according to claim 1, wherein:
the two reinforcing webs are connected with the middle web to form a Y-shaped structure.
8. A longeron according to claim 1, wherein:
the lower wing plate comprises a straight section, a transition section and a bent section, wherein the straight section extends in sequence in the longitudinal direction, the transition section is bent and extended downwards from the rear end of the straight section, and the bent section is further bent and extended downwards from the rear end of the transition section;
the included angle between the bending section and the straight section is larger than the included angle between the transition section and the straight section.
9. A longeron according to claim 8, wherein:
the middle web plate is provided with a lower end part matched with the radian of the bending section so as to be tightly connected with the bending section.
10. A side curtain semi-trailer is characterized in that:
a girder comprising a frame and according to any one of claims 1-9; the crossbeam extends along the longitudinal direction of the frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920839802.XU CN210101760U (en) | 2019-06-04 | 2019-06-04 | Side curtain semi-trailer and girder thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920839802.XU CN210101760U (en) | 2019-06-04 | 2019-06-04 | Side curtain semi-trailer and girder thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210101760U true CN210101760U (en) | 2020-02-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920839802.XU Active CN210101760U (en) | 2019-06-04 | 2019-06-04 | Side curtain semi-trailer and girder thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210101760U (en) |
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2019
- 2019-06-04 CN CN201920839802.XU patent/CN210101760U/en active Active
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Effective date of registration: 20201027 Address after: 523208 Guangdong province Dongguan city Wangniudun town road Jin vortex Road Patentee after: DONGGUAN CIMC SPECIAL VEHICLE Co.,Ltd. Patentee after: Zhongji Vehicle (Group) Co.,Ltd. Address before: 523208 Guangdong province Dongguan city Wangniudun town road Jin vortex Road Patentee before: DONGGUAN CIMC SPECIAL VEHICLE Co.,Ltd. Patentee before: Zhongji Vehicle (Group) Co.,Ltd. Patentee before: China International Marine Containers (Group) Co.,Ltd. |