CN211032742U

CN211032742U - Semitrailer and frame assembly thereof

Info

Publication number: CN211032742U
Application number: CN201921969833.3U
Authority: CN
Inventors: 房坤; 吴标; 瞿绘军
Original assignee: Yangzhou CIMC Tonghua Special Vehicles Co Ltd
Current assignee: Yangzhou CIMC Tonghua Special Vehicles Co Ltd
Priority date: 2019-11-14
Filing date: 2019-11-14
Publication date: 2020-07-17
Anticipated expiration: 2029-11-14

Abstract

The utility model provides a semitrailer and frame assembly thereof. The frame assembly comprises a landing leg support, a middle section frame and a walking support which are sequentially detachably connected from front to back along the longitudinal direction. The support side plate of the landing leg support is provided with a connecting part extending backwards, and the connecting part is provided with a plurality of adjusting holes distributed at intervals along the longitudinal direction. The middle section frame includes along horizontal two tie-beams side by side, and the rear end of tie-beam passes through the connecting hole and girder detachable connection of connecting plate, and the front end of tie-beam is acceptd in landing leg support's inside, and the tie-beam passes through regulation hole and support curb plate detachable connection to through connecting the holistic longitudinal length of different regulation hole adjustment frame assembly, reach the purpose of adjusting the wheel base of semitrailer, thereby satisfy different axle load demands, improve the commonality of transportation semitrailer.

Description

Semitrailer and frame assembly thereof

Technical Field

The utility model relates to a transport vehicle technical field, in particular to a semitrailer for transport tank body and frame assembly thereof.

Background

The transport semitrailer is a vehicle which is towed by an automobile and does not have a power driving device per se, and is an important vehicle type for road transportation. The tank type transport semi-trailer is a tank body used for transporting liquid, gas and other substances, and the tank body is permanently installed on the road transport semi-trailer on the unpowered semi-trailer travelling mechanism.

According to the connection mode of the tank body and the semi-trailer walking structure frame and the tank body bearing condition, the tank type transportation semi-trailer can be divided into a semi-bearing type (with a frame) and a bearing type (without a frame). Because the bearing type tank type transport semi-trailer is of a frame-free structure, the tank body has the function of a frame besides the gravity action of bearing materials, and the design and manufacturing requirements on the tank body are higher. The semi-load semi-trailer fixes the tank body on the frame of the semi-trailer, the mass of the tank body, materials and the like is mainly borne by the frame, and the tank body only bears partial load. Therefore, at present, a semi-bearing structure is adopted in the industry, and the tank body is connected with a frame assembly of the semitrailer through a support.

At present, a frame assembly structure is usually of a whole-section through-length type, and particularly the frame structure mainly comprises a whole-section frame longitudinal beam from a traction pin to the tail part of a semitrailer frame. The structure of the traditional whole longitudinal beam is limited by a plurality of factors such as wheelbase, suspension types, accessory installation positions and the like. For example, aiming at various transport semitrailers with different load requirements and different wheelbase requirements, the whole longitudinal beam is specially customized by adapting to the wheelbase requirements, the personalization degree is higher, the modularization degree is lower, the longitudinal beam and the longitudinal beam are not universal, and therefore the production cost is high and the economic benefit is low. And the whole longitudinal beam is complex in manufacturing process, high in difficulty and long in working time, and the longitudinal beam is long in length, so that the logistics transportation is difficult.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a frame assembly of semitrailer to the frame of transportation semitrailer adopts the commonality that whole section longeron structure leads to among the solution prior art lower, make the big and with high costs scheduling problem of the degree of difficulty.

An object of the utility model is to provide a semitrailer still, this semitrailer has foretell frame assembly.

In order to solve the technical problem, the utility model adopts the following technical scheme:

a frame assembly of a semitrailer comprises a leg support, a middle-section frame and a walking support which are detachably connected in sequence from front to back along the longitudinal direction; the support leg bracket is used for connecting a support leg mechanism of a semitrailer and comprises two left and right opposite support side plates, a supporting top plate flatly arranged at the upper ends of the support side plates and a front cross beam connected with the two support side plates, each support side plate is provided with a connecting part extending backwards, and the connecting part is provided with a plurality of adjusting holes distributed at intervals along the longitudinal direction; the walking bracket is used for connecting a walking mechanism of a semitrailer and comprises two cross beams which are arranged side by side along the transverse direction, a rear cross beam for connecting the two cross beams and a connecting plate arranged at the front end of each cross beam, and a connecting hole is formed in the connecting plate; the middle section frame includes along horizontal two tie-beams side by side, the rear end of tie-beam passes through the connecting hole of connecting plate with girder detachable connection, the front end of tie-beam is acceptd the inside of landing leg support, and with the medial surface laminating of connecting portion, just the upper end of tie-beam is not higher than the supporting roof, the tie-beam passes through the regulation hole with support curb plate detachable connection to through connecting the holistic longitudinal length of different regulation hole adjustment frame assembly.

According to the utility model discloses an embodiment, the tie-beam includes the web and bends the upper flange board and the lower flange board that extend to same one side from the upper and lower end of web, upper flange board and lower flange board enclose and form an opening, two the opening of tie-beam is along horizontal relative, set up a plurality of adaptation holes along longitudinal distribution on the web, the adaptation hole corresponds with the regulation hole, the web with the medial surface laminating of connecting portion is fixed.

According to an embodiment of the present invention, the fitting hole is a waist-shaped hole; the length direction of the adapting hole extends along the longitudinal direction.

According to an embodiment of the invention, the upper flange plate of the connection beam is not higher than the supporting roof plate.

According to an embodiment of the present invention, the rear end of the supporting top plate does not exceed the rear end of the connecting portion; the front end of the upper flange plate is abutted to the rear end of the supporting top plate, and the upper end face of the upper flange plate is flush with the upper end face of the supporting top plate.

According to an embodiment of the present invention, the girder includes an upper wing plate, a lower wing plate, and a web plate vertically connecting the upper wing plate and the lower wing plate; the two ends of the connecting plate are respectively connected with the upper wing plate and the lower wing plate; the rear end of tie-beam still is equipped with the buttcover plate, seted up on the buttcover plate corresponding to the through-hole of connecting hole, the upper and lower both ends of buttcover plate are connected respectively go up the flange board with flange board down, one side of buttcover plate with the rear end face laminating of last flange board and lower flange board, the opposite side with the connecting plate laminating is fixed.

According to the utility model discloses an embodiment, the connecting plate is located the inboard of girder, the both ends of connecting plate connect respectively in the inner wall of last pterygoid lamina and lower pterygoid lamina, the preceding terminal surface of connecting plate with the preceding terminal surface of last pterygoid lamina or lower pterygoid lamina flushes.

According to an embodiment of the present invention, the traveling carriage further comprises a plurality of groups of suspension support plates longitudinally spaced apart from each other on the girder; the rear cross beam is fixedly positioned below the lower wing plates, and two ends of the rear cross beam are respectively spaced from the outer sides of the two lower wing plates to form an installation space; and the two suspension support plates in each group are respectively accommodated in the mounting spaces at the two ends of the rear cross beam, and the suspension support plates are respectively welded and fixed with the outer end part of the rear cross beam and the bottom of the lower wing plate.

According to an embodiment of the present invention, the traveling carriage further comprises a plurality of sets of reinforcements corresponding to the suspension brackets; the two reinforcing pieces of each group are respectively arranged at two ends of the rear cross beam and are positioned in the walking support, the upper end of each reinforcing piece is welded and fixed with the inner side of the web plate of the girder, and the lower end of each reinforcing piece is welded and fixed with the inner side of the suspension support plate.

According to an embodiment of the present invention, the bracket side plate further has an extension part and an inclined strut integrally formed with the connecting part; the extension part extends downwards and is vertical to the connecting part, and a plurality of bolt holes are distributed on the extension part at intervals along the height for connecting and fixing the supporting legs; the inclined strut is inclined to connect the lower end of the extension part and the rear end of the connection part respectively.

According to an embodiment of the present invention, the leg support further comprises two reinforcing ribs; the two ends of the front cross beam are respectively connected to the inner sides of the two extending parts, the two reinforcing ribs are located at the two ends of the front cross beam, and the reinforcing ribs are respectively connected with the front cross beam and the extending parts.

According to an embodiment of the present invention, the device further comprises a traction module; the traction module is used for being correspondingly connected with a tractor, and the traction module is fixedly arranged and is spaced from the supporting leg support.

According to one embodiment of the utility model, the semitrailer comprises a leg mechanism, a traveling mechanism and a frame assembly; the supporting leg mechanism is used for being correspondingly connected with a supporting leg support of the frame assembly, and the walking mechanism is used for being correspondingly connected with the walking support.

According to one embodiment of the utility model, the semitrailer is a tank type transport semitrailer, comprising a tank body carried on the frame assembly, the front end of the tank body extends forwards beyond the leg support, and the leg support, the middle-section frame and the walking support are positioned and bear the rear end of the tank body; the frame assembly further comprises a traction module fixedly arranged at the bottom of the front end of the tank body, and the landing leg support and the walking support are fixedly connected with the bottom of the rear end of the tank body through a tank body connecting support.

According to the above technical scheme, the utility model provides a pair of frame assembly of semitrailer has following advantage and positive effect at least:

this frame assembly has made the improvement to the structure, for the frame of traditional whole section formula longeron structure, it improves frame structure for in the past after to in proper order removable landing leg support, middle section frame and the walking support that links to each other. Wherein, the connecting portion design of middle section frame and landing leg support is adjustable structure, specifically is: a plurality of adjusting holes are formed in the connecting part of the bracket side plate and are distributed at intervals along the longitudinal direction; the front end of the connecting beam of the middle frame is accommodated in the leg support and is detachably connected with the side plate of the support through the adjusting hole; the connecting beam is correspondingly connected with different adjusting holes to drive the traveling support at the rear to move back and forth relative to the supporting leg support, so that the length of the longitudinal length of the whole frame assembly is changed, the purpose of adjusting the wheelbase of the semitrailer is achieved, different axle load requirements are met, and the universality of the semitrailer is improved. Furthermore, the middle section frame and the walking bracket are of detachable connection structures and can be manufactured separately, so that the structure of a manufacturing die is simplified, and the manufacturing difficulty is reduced; simultaneously, removable structure detachable transportation has reduced the size of taking up an area of, has improved the convenience of the commodity circulation transport of frame.

The utility model also provides a semitrailer for the transport tank body, this semitrailer have foretell frame assembly, have also consequently had the function that the wheel base was adjusted, have satisfied the different wheel base demands to the transportation of the various types of jar body, and the commonality is high, and economic benefits is high.

Drawings

Fig. 1 is the overall structure schematic diagram of the semitrailer in the embodiment of the utility model.

Fig. 2 is a schematic structural view of the frame assembly according to the embodiment of the present invention at a first viewing angle.

Fig. 3 is a schematic structural view of the frame assembly at a second viewing angle according to the embodiment of the present invention.

Fig. 4 is a schematic structural view of the frame assembly at a third viewing angle according to the embodiment of the present invention.

Fig. 5 is a schematic structural view of a connection beam of a middle section frame in an embodiment of the present invention at a first viewing angle.

Fig. 6 is a schematic structural view of a connection beam in an embodiment of the present invention at a second viewing angle.

Fig. 7 is a schematic structural view of the walking frame in the embodiment of the present invention.

Fig. 8 is a transverse sectional view of the walking frame in the embodiment of the present invention.

The reference numerals are explained below: 100. a frame assembly; 200. a tank body; 210. the tank body is connected with the support; 120. a traveling mechanism; 150. a leg mechanism; 170. a guardrail structure; 1. a traction module; 2. a leg support; 20. a bracket side plate; 201. a connecting portion; 202. an adjustment hole; 203. an extension portion; 204. bolt holes; 205. bracing; 21. supporting a top plate; 22. a front cross member; 23. reinforcing ribs; 3. a middle frame; 30. a connecting beam; 301. a web; 302. an upper flange plate; 303. a lower flange plate; 31. an adapter hole; 32. a butt plate; 4. a walking bracket; 40. a girder; 401. a web; 402. an upper wing plate; 403. a lower wing plate; 41. a limiting block; 42. a rear cross member; 43. a connecting plate; 44. a suspension support plate; 45. an air suspension bladder; 46. a reinforcement.

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.

At present, the structure of the whole section of longitudinal beam in the related technology is influenced by wheelbase, rear overhang, suspension types, accessory installation positions and the like, so that the standardization degree is low, and pain points such as complex manufacturing process, long labor time, difficult logistics transportation and the like exist; and because there is strict requirement to total mass of whole car at present, above-mentioned whole section formula frame structure also has the problem such as heavy in weight.

In order to solve the above problem, the present embodiment provides a semitrailer for transporting tank and a frame assembly thereof, wherein, compared with the integral frame structure, the present embodiment improves the frame structure into a sectional frame structure, and includes four separable parts: the device comprises a traction module, a supporting leg support, a middle section frame and a walking support. The middle section frame can be designed into an adjustable structure according to the wheel base parameters of all vehicle types, so that the universality is improved; the rear walking support is high in standardization degree (only affected by single tires, double tires, rear overhang, air overhang and the like), and due to the advantages of separate manufacturing and separate transportation, the difficulty of manufacturing and logistics transportation is reduced, the actual function requirement and the strength requirement of a semitrailer can be met, the requirement of road transportation and the requirement of light weight of customers can be met, and the economic benefit is greatly improved.

Referring to fig. 1, the semitrailer is used for carrying a tank 200, and is a tank type transportation semitrailer. A traction module 1 positioned at the front end in a frame assembly 100 is integrated in a tank body 200, and the traction module 1 is correspondingly connected with a tractor to provide traction force for a semitrailer; while the leg rest 2 and the walking rest 4, which are situated relatively far back, are used for the corresponding connection of the leg mechanism 150 and the walking mechanism 120, respectively, of the semitrailer. Thus, the frame assembly 100 realizes the functions of bearing the tank 200 and the quality of the carried materials by the frame through the connection of the four parts of the bracket structures and the connection with the tank 200.

Referring to fig. 2 to 4 together, fig. 2 shows a specific structure of a frame assembly 100 according to the present embodiment. Wherein, the traction module 1 and the landing leg support 2 at the front side are separated, and the landing leg support 2, the middle section frame 3 and the walking support 4 at the rear side are sequentially connected in a detachable manner. Through adjusting the middle section frame 3, the adjustment of the longitudinal length within a certain range is satisfied, so that the wheelbase requirements of different semitrailers are met, and the universality and the adaptability are high.

The traction module 1 is fixedly arranged and spaced apart from the leg support 2. Specifically, the traction module 1 and the leg support 2 are respectively designed as assembly modules, which are used as components of a sectional frame of the frame assembly 100, the two are disconnected without a connection structure, and the design is subject to stress analysis and special arrangement of the position of the tank body connection support 210, so that the requirement of the frame bearing strength is met, and the purpose of weight reduction is achieved.

The leg support 2 is used for connecting a leg mechanism 150 of the semitrailer, is used as a support device of the semitrailer, is used after the semitrailer is separated from the tractor, and bears the load of the front half part of the semitrailer.

The leg support 2 mainly comprises two support side plates 20 which are opposite from each other at left and right, a supporting top plate 21 which is flatly arranged at the upper end of each support side plate 20, a front cross beam 22 which is connected with the two support side plates 20 and two reinforcing ribs 23, wherein each support side plate 20 is used for correspondingly connecting the left and right legs, each support side plate 20 is approximately L-shaped and is provided with a connecting part 201 which is integrally formed and extends backwards, an extending part 203 which extends downwards and an inclined strut 205, a plurality of adjusting holes 202 which are distributed at intervals along the longitudinal direction are arranged on the connecting part 201, the adjusting holes 202 are used for correspondingly matching with a middle section frame 3 at the rear part, the extending part 203 is vertical to the connecting part 201, a plurality of bolt holes 204 are distributed at intervals along the height on the extending part 203 and are used for connecting and fixing the legs, the inclined strut 205 is used for respectively connecting the lower end of the extending part 203 and the rear end of the connecting part 201 to increase the structural strength of the.

The supporting top plate 21 is used for connecting and supporting the bottom of the can 200, and the supporting top plate 21 is correspondingly connected with the can connecting support 210. The supporting top plate 21 is rectangular, and the lower end face thereof is welded and fixed with the bracket side plate 20. Both sides in the width direction of the top support plate 21 are beyond the bracket side plates 20. The supporting top plate 21 extends lengthwise, and its rear end does not extend beyond the rear end of the connecting portion 201, and preferably extends to the forward adjusting hole 202 of the connecting portion 201.

The middle frame 3 is used for connecting the middle part, and the front end and the rear end of the middle frame are respectively connected with the landing leg bracket 2 and the walking frame through detachable bolts, so that the welding workload is reduced.

Referring to fig. 5 and 6, the middle frame 3 mainly includes two tie beams 30 arranged side by side in the transverse direction and a butt plate 32 disposed at the rear end of each tie beam 30.

The connecting beam 30 is a C-shaped beam, and is of an integrally formed structure, and comprises a web 301, and an upper flange plate 302 and a lower flange plate 303 which are bent and extended from the upper end and the lower end of the web 301 to the same side; web 301, upper flange plate 302, and lower flange plate 303 enclose an opening. The openings of two side-by-side coupling beams 30 are opposite. The web 301 is provided with a plurality of longitudinally distributed fitting holes 31, and the fitting holes 31 correspond to the adjusting holes 202 one by one.

The front end of the connection beam 30 is housed inside the leg bracket 2, and the web 301 of the connection beam 30 is attached to the inner surface of the connection portion 201. The connecting beam 30 is inserted into the adjusting hole 202 and the adapting hole 31 through the adapting bolt fastener to form detachable connection with the bracket side plate 20.

The adapting holes 31 on the connecting beam 30 are waist-shaped holes, the length directions of the waist-shaped holes extend along the longitudinal direction, a large moving space is provided for bolt pieces, the front and back fine adjustment of the installation position of the connecting beam 30 can be realized, and the axle distance adjustment is better met.

Referring to fig. 3, for platform-series vehicle models, the length L2 of the rear frame can be set to one or more fixed values to achieve modular and standardized design, and the dimension of the length L1 of the middle frame 3 is changed to finally realize parametric adjustment of different values of the axle distance L of the semitrailer, so that the semitrailer is suitable for various semitrailer vehicle models.

During the connection with the bracket side plate 20, the front end of the upper flange plate 302 of the connection beam 30 abuts against the rear end of the support top plate 21, and the upper end surface of the upper flange plate 302 is flush with the upper end surface of the support top plate 21. In this way, the connection beam 30 transfers the load along the longitudinal portion to the supporting top plate 21 by abutting against the supporting top plate 21, which is advantageous for maintaining the connection stability of its own structure.

The abutting plate 32 is provided on the rear end surface of the connection beam 30. Specifically, the upper and lower ends of the butt plate 32 are respectively connected to the upper flange plate 302 and the lower flange plate 303. The front side surface of the butt plate 32 is attached to the rear end surfaces of the upper flange plate 302 and the lower flange plate 303, and the upper and lower ends of the butt plate 32 are flush with the upper flange plate 302 and the lower flange plate 303. The butt plate 32 is provided with a through hole. The rear side of the butt plate 32 is fixed with the connecting plate 43 on the walking frame through a through hole.

It should be noted that, through effective analysis, calculation and experimental verification, on the premise of satisfying the structural strength, the tank connecting support 210 for connecting with the tank 200 is not provided on the middle frame 3, so as to achieve the weight reduction effect. And the supporting leg bracket 2 and the walking bracket 4 are respectively provided with a tank body connecting support 210. In contrast, both sides of the mid-section frame 3 can be used for mounting semi-trailer accessories such as the guardrail structure 170.

Referring to fig. 7 and 8, the traveling support 4 is a rear frame structure, the upper portion of the traveling support is used for being connected with the tank connecting support 210 through bolts, and the lower portion of the traveling support is used for being connected with the traveling mechanism 120 of the semitrailer, so that the tank 200 and the loaded material are borne by the frame. The walking bracket 4 is welded with the bracket of the suspension system of the walking mechanism 120 by adopting the sinking type connecting beam 30, so that the problem of interference between the bracket of the pipeline at the lower part of the tank body 200 and the connecting beam 30 is avoided.

The traveling bracket 4 mainly includes two girders 40 arranged side by side in the transverse direction, a plurality of rear cross members 42 connecting the two girders 40, a connecting plate 43 provided at the front end of each girder 40, a plurality of groups of suspension stay plates 44 arranged at intervals in the longitudinal direction of the girders 40, and a plurality of groups of reinforcing members 46 arranged corresponding to the suspension stay plates 44.

The longeron 40 is an i-beam that includes an upper wing plate 402, a lower wing plate 403, and a web 401 that vertically connects the upper wing plate 402 and the lower wing plate 403.

Wherein, the upper wing plate 402 of the girder 40 is provided with an opening for connecting with the support of the tank 200, and a stopper 41 protruding upwards is welded at the connecting position of the upper wing plate 402, thereby preventing the displacement of the connecting position of the tank 200. The front end of the girder 40 is bolted with the butt plate 32 of the middle frame 3 through a connecting plate 43, and the rear end thereof is also connected with a plate for bolting with the rear tail protection assembly.

Specifically, the connecting plate 43 is located inside the girder 40, and both ends of the connecting plate 43, specifically the connecting plate 43, are connected to the inner walls of the upper wing plate 402 and the lower wing plate 403, respectively, and the front end surface of the connecting plate 43 is flush with the front end surface of the upper wing plate 402 or the lower wing plate 403. The connecting plate 43 is provided with a connecting hole adapted to the through hole of the abutting plate 32.

As shown in fig. 8, the rear cross member 42 is fixed below the lower panel 403 of the girder 40, and specifically, an upper end surface of an end portion of the rear cross member 42 is welded and fixed to a lower end surface of the lower panel 403. The two ends of the rear cross beam 42 are respectively spaced from the outer sides of the two lower wing plates 403 to form an installation space. The rear cross beam 42 is arranged in a sinking manner compared with the middle welding arrangement of the conventional cross beam and sinks below the crossbeam 40; therefore, the problem of interference of the pipeline frame connecting beam 30 at the lower part of the tank body 200 can be effectively solved, and the pipeline arrangement is convenient.

The two suspension brackets 44 of each set are respectively accommodated in the mounting spaces at the two ends of the rear cross beam 42, and the suspension brackets 44 are respectively welded and fixed with the outer end of the rear cross beam 42 and the bottom of the lower wing plate 403. In addition, air suspension bladders 45 in the suspension system are each positioned alongside the suspension plate 44.

Two reinforcing members 46 of each set are arranged at both ends of the rear cross member 42 for reinforcement of the rear cross member 42. Two reinforcing members 46 are provided inside the undercarriage 4, each reinforcing member 46 having a triangular shape with the tips of the reinforcing members 46 facing each other. The upper end of the reinforcing piece 46 is welded and fixed with the inner side of the web plate 401 of the girder 40, the lower end of the reinforcing piece 46 is welded and fixed with the inner side of the suspension support plate 44, the integral rigidity and strength meet the stress requirement of the whole vehicle, and meanwhile, the arrangement is simpler.

In summary, the frame assembly 100 applied to the semitrailer provided by the embodiment has the following advantages and positive effects:

the frame assembly 100 is improved in structure, and compared with a traditional frame with an integral longitudinal beam structure, the frame structure is improved into a sectional structure, so that the difficulty degree in manufacturing is greatly reduced in the aspects of logistics transportation, girder 40 drilling, accessory installation and the like, the manufacturing period and working hours are shortened, and the labor efficiency is improved; meanwhile, the weight of the frame is reduced, so that the requirement of light weight design of the whole vehicle is met, and considerable benefits are brought.

Specifically, the frame assembly 100 includes a leg support 2, a middle frame 3 and a walking support 4, which are detachably connected in sequence from the front to the back. Wherein, middle section frame 3 is designed as adjustable structure with landing leg support 2's connecting portion 201 part, specifically is: a plurality of adjusting holes 202 are arranged on the connecting part 201 of the bracket side plate 20 and are distributed at intervals along the longitudinal direction; the front end of the connecting beam 30 of the middle frame 3 is accommodated in the leg support 2 and is detachably connected with the support side plate 20 through the adjusting hole 202; the connecting beam 30 is correspondingly connected with different adjusting holes 202 to drive the traveling support 4 at the rear to move back and forth relative to the leg support 2, so that the purpose of adjusting the wheelbase of the semitrailer is achieved, different axle load requirements are met, and the universality of the semitrailer is improved. Furthermore, the middle section frame 3 and the walking bracket 4 are of detachable connection structures and can be manufactured separately, so that the structure of a manufacturing die is simplified, and the manufacturing difficulty is reduced; simultaneously, removable structure detachable transportation has reduced the size of taking up an area of, has improved the convenience of the commodity circulation transport of frame.

In addition, this embodiment still provides a semitrailer for transporting jar body 200, and this semitrailer has foretell frame assembly 100, has also consequently had the function of wheel base regulation, has satisfied the different wheel base demands to the transportation of various jar bodies 200, and the commonality is high, and economic benefits is high.

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

1. The utility model provides a frame assembly of semitrailer which characterized in that: the frame assembly comprises a landing leg support, a middle-section frame and a walking support which are sequentially detachably connected from front to back along the longitudinal direction;

the support leg bracket is used for connecting a support leg mechanism of a semitrailer and comprises two left and right opposite support side plates, a supporting top plate flatly arranged at the upper ends of the support side plates and a front cross beam connected with the two support side plates, each support side plate is provided with a connecting part extending backwards, and the connecting part is provided with a plurality of adjusting holes distributed at intervals along the longitudinal direction;

the walking bracket is used for connecting a walking mechanism of a semitrailer and comprises two cross beams which are arranged side by side along the transverse direction, a rear cross beam for connecting the two cross beams and a connecting plate arranged at the front end of each cross beam, and a connecting hole is formed in the connecting plate;

the middle section frame includes along horizontal two tie-beams side by side, the rear end of tie-beam passes through the connecting hole of connecting plate with girder detachable connection, the front end of tie-beam is acceptd the inside of landing leg support, and with the medial surface laminating of connecting portion, just the upper end of tie-beam is not higher than the supporting roof, the tie-beam passes through the regulation hole with support curb plate detachable connection to through connecting the holistic longitudinal length of different regulation hole adjustment frame assembly.

2. The frame assembly of claim 1, wherein:

the web, the upper flange plate and the lower flange plate are arranged on the web in a surrounding mode to form an opening, the openings of the two connecting beams are transversely opposite, a plurality of longitudinally distributed adapting holes are formed in the web, the adapting holes correspond to the adjusting holes, and the web is fixedly attached to the inner side face of the connecting portion.

3. The frame assembly of claim 2, wherein:

the adaptive hole is a waist-shaped hole;

the length direction of the adapting hole extends along the longitudinal direction.

4. The frame assembly of claim 2, wherein:

the upper flange plate of the connecting beam is not higher than the supporting top plate.

5. The frame assembly of claim 4, wherein:

the rear end of the supporting top plate does not exceed the rear end of the connecting part;

the front end of the upper flange plate is abutted to the rear end of the supporting top plate, and the upper end face of the upper flange plate is flush with the upper end face of the supporting top plate.

6. The frame assembly of claim 2, wherein:

the crossbeam comprises an upper wing plate, a lower wing plate and a web plate vertically connected with the upper wing plate and the lower wing plate;

the two ends of the connecting plate are respectively connected with the upper wing plate and the lower wing plate;

the rear end of tie-beam still is equipped with the buttcover plate, seted up on the buttcover plate corresponding to the through-hole of connecting hole, the upper and lower both ends of buttcover plate are connected respectively go up the flange board with flange board down, one side of buttcover plate with the rear end face laminating of last flange board and lower flange board, the opposite side with the connecting plate laminating is fixed.

7. The frame assembly of claim 6, wherein:

the connecting plate is located the inboard of girder, the both ends of connecting plate connect respectively in the inner wall of upper wing plate and lower pterygoid lamina, the preceding terminal surface of connecting plate with the preceding terminal surface of upper wing plate or lower pterygoid lamina flushes.

8. The frame assembly of claim 6, wherein:

the walking support also comprises a plurality of groups of suspension support plates which are arranged on the girder at intervals along the longitudinal direction;

the rear cross beam is fixedly positioned below the lower wing plates, and two ends of the rear cross beam are respectively spaced from the outer sides of the two lower wing plates to form an installation space;

and the two suspension support plates in each group are respectively accommodated in the mounting spaces at the two ends of the rear cross beam, and the suspension support plates are respectively welded and fixed with the outer end part of the rear cross beam and the bottom of the lower wing plate.

9. The frame assembly of claim 8, wherein:

the walking bracket also comprises a plurality of groups of reinforcing pieces which are arranged corresponding to the suspension support plate;

the two reinforcing pieces of each group are respectively arranged at two ends of the rear cross beam and are positioned in the walking support, the upper end of each reinforcing piece is welded and fixed with the inner side of the web plate of the girder, and the lower end of each reinforcing piece is welded and fixed with the inner side of the suspension support plate.

10. The frame assembly of claim 1, wherein:

the bracket side plate is also provided with an extension part and an inclined strut which are integrally formed with the connecting part;

the extension part extends downwards and is vertical to the connecting part, and a plurality of bolt holes are distributed on the extension part at intervals along the height for connecting and fixing the supporting legs;

the inclined strut is inclined to connect the lower end of the extension part and the rear end of the connection part respectively.

11. The frame assembly of claim 10, wherein:

the supporting leg bracket also comprises two reinforcing ribs;

the two ends of the front cross beam are respectively connected to the inner sides of the two extending parts, the two reinforcing ribs are located at the two ends of the front cross beam, and the reinforcing ribs are respectively connected with the front cross beam and the extending parts.

12. The frame assembly of claim 1, wherein:

the device also comprises a traction module;

the traction module is used for being correspondingly connected with a tractor, and the traction module is fixedly arranged and is spaced from the supporting leg support.

13. A semi-trailer, characterized in that: the semitrailer comprises a leg mechanism, a running mechanism and a frame assembly of any one of the preceding claims 1-12;

the supporting leg mechanism is used for being correspondingly connected with a supporting leg support of the frame assembly, and the walking mechanism is used for being correspondingly connected with the walking support.

14. A semitrailer according to claim 13, characterised in that: the semitrailer is a tank type transport semitrailer and comprises a tank body borne on the frame assembly, the front end of the tank body forwards exceeds the landing leg support, and the landing leg support, the middle-section frame and the walking support are positioned at and bear the rear end of the tank body;

the frame assembly further comprises a traction module fixedly arranged at the bottom of the front end of the tank body, and the landing leg support and the walking support are fixedly connected with the bottom of the rear end of the tank body through a tank body connecting support.