CN113276757A - Proportional distribution type large load transfer device - Google Patents
Proportional distribution type large load transfer device Download PDFInfo
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- CN113276757A CN113276757A CN202110499812.5A CN202110499812A CN113276757A CN 113276757 A CN113276757 A CN 113276757A CN 202110499812 A CN202110499812 A CN 202110499812A CN 113276757 A CN113276757 A CN 113276757A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P7/00—Securing or covering of load on vehicles
- B60P7/06—Securing of load
- B60P7/135—Securing or supporting by load bracing means
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Abstract
The invention relates to a proportional distribution type large load transfer device, which comprises a primary beam, a secondary left beam and a secondary right beam, wherein the middle part of the secondary left beam is hinged with the left end of the primary beam through a primary left bearing shaft, the left end of the secondary left beam is provided with a left support lug hinged with a bearing platform, the right end of the secondary left beam is provided with a secondary left bearing shaft, and the lower sides of the front end and the rear end of the secondary left bearing shaft are respectively provided with a tertiary left beam arranged on the bearing platform in a cushioning manner; the middle part of the second-level right beam is hinged with the right end of the first-level beam through a first-level right bearing shaft, a right supporting lug hinged with the bearing table is arranged at the right end of the second-level right beam, a second-level right bearing shaft is arranged at the left end of the second-level right beam, and a third-level right beam arranged on the bearing table is respectively arranged on the lower sides of the front end and the rear end of the second-level right bearing shaft in a cushioning mode. The load bearing platform has the advantages of compact structure, high integration level, high bearing strength, safety and reliability, and effectively reduces the requirement on the bearing surface and can meet the bearing requirement of large load by distributing the load to different positions of the bearing surface platform in proportion.
Description
Technical Field
The invention relates to a supporting device, in particular to a large load transfer device capable of distributing load in proportion.
Background
In the field of aerospace, products such as arrow bodies and the like are often required to be carried and transported. In the prior art, a product is usually directly arranged on a bearing surface (platform), and the load is concentrated on the bearing surface, so that the requirement on the bearing surface is high, the design difficulty and the construction cost of the bearing surface are increased, and the bearing requirement of the product with a large load magnitude cannot be met.
Disclosure of Invention
The invention aims to provide a proportion distribution type large load transfer device which has the advantages of compact structure, high integration level, high bearing strength, safety and reliability, effectively reduces the requirement on a bearing surface and can meet the bearing requirement of large load (more than 300 tons) by distributing and transferring the load to different positions of a bearing surface platform according to proportion.
In order to solve the problems in the prior art, the invention provides a proportional distribution type large load transfer device, which comprises a primary beam, a secondary left beam and a secondary right beam, wherein the middle part of the secondary left beam is hinged with the left end of the primary beam through a primary left bearing shaft, the left end of the secondary left beam is provided with a left support lug hinged with a bearing platform, the right end of the secondary left beam is provided with a secondary left bearing shaft, and the lower sides of the front end and the rear end of the secondary left bearing shaft are respectively provided with a tertiary left beam arranged on the bearing platform in a cushioning manner; the middle part of second grade right beam bears the axle through the one-level right side and articulates with the right-hand member of one-level roof beam, and the right-hand member of second grade right beam is equipped with the right journal stirrup articulated with the plummer, and the left end of second grade right beam is equipped with the second grade right and bears the axle, and the third grade right beam on the plummer is arranged in to the second grade right front and back end downside of bearing the axle pad respectively.
Furthermore, the invention relates to a proportional distribution type large load transfer device, wherein the left half part of the primary beam is provided with three first hinge parts which are distributed at intervals from front to back, and the right half part of the primary beam is provided with three second hinge parts which are distributed at intervals from front to back; the right half part of the second-level left beam is provided with two third hinged parts which are respectively positioned between the adjacent first hinged parts, the first-level left bearing shaft sequentially penetrates through the first hinged parts and the third hinged parts, the left half part of the second-level right beam is provided with two fourth hinged parts which are respectively positioned between the adjacent second hinged parts, and the first-level right bearing shaft sequentially penetrates through the second hinged parts and the fourth hinged parts.
Further, the invention relates to a proportion distribution type large load transfer device, wherein the upper side surfaces of the primary beam and the first hinge part and the second hinge part of the primary beam are flush; the third hinge part is flush with the upper side surfaces of the first hinge parts, the secondary left bearing shaft penetrates through the three first hinge parts, and the tertiary left beam is positioned outside the three first hinge parts; the upper sides of the fourth hinge and the second hinge are flush, the secondary right bearing shaft passes through the three second hinges, and the tertiary right beam is positioned at the outer sides of the three second hinges.
Further, the proportion distribution type large load transfer device is characterized in that the primary beam, the secondary left beam and the secondary right beam are all of hollow structures welded by adopting plates; the first hinge part is provided with a first connecting hole, a first sleeve is fixed in the first connecting hole, the second hinge part is provided with a second connecting hole, a second sleeve is fixed in the second connecting hole, a third connecting hole is formed in the third hinge part, a third sleeve is fixed in the third connecting hole, a fourth connecting hole is formed in the fourth hinge part, and a fourth sleeve is fixed in the fourth connecting hole; the first-stage left bearing shaft penetrates through the first sleeve and the third sleeve, and the first-stage right bearing shaft penetrates through the second sleeve and the fourth sleeve.
Further, the invention relates to a proportional distribution type large load transfer device, wherein a third hinge part is provided with a fifth connecting hole, a fifth sleeve is fixed in the fifth connecting hole, and the secondary left bearing shaft penetrates through the fifth sleeve; the fourth hinge part is provided with a sixth connecting hole, a sixth sleeve is fixed in the sixth connecting hole, and the secondary right bearing shaft penetrates through the sixth sleeve.
Further, the invention relates to a proportional distribution type large load transfer device, wherein the first hinge part is provided with a first through hole, and the secondary left bearing shaft penetrates through the first through hole; the second hinge part is provided with a second through hole, and the secondary right bearing shaft penetrates through the second through hole.
Further, the proportion distribution type large load transfer device is characterized in that arc-shaped grooves are formed in the three-level left beam and the three-level right beam respectively, two ends of the second-level left bearing shaft are located in the arc-shaped grooves corresponding to the three-level left beam, and two ends of the second-level right bearing shaft are located in the arc-shaped grooves corresponding to the three-level right beam.
Further, the invention relates to a proportional distribution type large load transfer device, wherein the first hinge part is provided with a first lightening hole, the second hinge part is provided with a second lightening hole, the third hinge part is provided with a third lightening hole, and the fourth hinge part is provided with a fourth lightening hole.
Further, the invention relates to a proportional distribution type large load transfer device, wherein the middle part of the upper side of the primary beam is in a disc shape; the first hinge part, the second hinge part, the third hinge part and the fourth hinge part are the same in height; and the three-level left beam and the three-level right beam are formed by welding plates.
Furthermore, the invention relates to a proportional distribution type large load transfer device, wherein the number of the left support lugs is two, and the two left support lugs are distributed at intervals along the front-back direction; the right branch ear is equipped with two, and two right branch ears are along the fore-and-aft direction interval distribution.
Compared with the prior art, the proportional distribution type large load transfer device has the following advantages: the middle part of the second-level left beam is hinged with the left end of the first-level beam through a first-level left bearing shaft, the left end of the second-level left beam is provided with a left support lug hinged with a bearing platform, the right end of the second-level left beam is provided with a second-level left bearing shaft, and the lower sides of the front end and the rear end of the second-level left bearing shaft are respectively padded with a third-level left beam arranged on the bearing platform; the right-hand member that makes the middle part of second grade right beam bear the axle through the one-level right and articulate with the right-hand member of one-level roof beam, sets up the right journal stirrup articulated with the plummer at the right-hand member of second grade right beam, sets up the second grade right and bears the axle at the left end of second grade right beam, bears the axle's front and back end downside at the second grade right and fills up respectively and be equipped with the tertiary right beam of arranging in on the plummer. Therefore, the proportion distribution type large load transmission device is compact in structure, high in integration level, high in bearing strength, safe and reliable. In practical application, a product is placed on a first-level beam, and the force of the product on the first-level beam is transmitted to the left support lug, the right support lug, the third-level left beam and the third-level right beam step by step through the first-level beam, the second-level left beam, the first-level left bearing shaft, the first-level right bearing shaft, the second-level left bearing shaft and the second-level right bearing shaft according to a multi-level lever principle, so that the technical purpose of distributing the load to different positions on the bearing platform in proportion is achieved.
A proportional distribution type large load transmission device according to the present invention will be described in detail with reference to the embodiments shown in the drawings.
Drawings
FIG. 1 is a schematic diagram of a proportional distribution type large load transfer device of the present invention;
FIG. 2 is a front view of a proportional distributing high load transfer device of the present invention;
FIG. 3 is a top view of a proportionally distributing high load transfer device of the present invention;
FIG. 4 is a perspective view of a proportional distributing heavy load transfer device of the present invention;
FIG. 5 is a perspective view of a primary beam of a proportional distributing heavy load transfer device of the present invention;
fig. 6 is a perspective view of a secondary left beam in the proportional distributing large load transfer device of the present invention.
Detailed Description
First, it should be noted that, the directional terms such as up, down, left, right, front, rear, etc. described in the present invention are only described with reference to the accompanying drawings for easy understanding, and do not limit the technical solution and the claimed scope of the present invention.
As shown in fig. 1 to 6, the embodiment of the present invention includes a primary beam 1, a secondary left beam 2, and a secondary right beam 2'. The middle part of the second-level left beam 2 is hinged with the left end of the first-level beam 1 through the first-level left bearing shaft 3, the left end of the second-level left beam 2 is provided with a left support lug 21 hinged with a bearing platform (not shown in the figure), the right end of the second-level left beam 2 is provided with a second-level left bearing shaft 4, and the lower sides of the front end and the rear end of the second-level left bearing shaft 4 are respectively provided with a third-level left beam 5 arranged on the bearing platform. The middle part of the second-level right beam 2 'is hinged with the right end of the first-level beam 1 through a first-level right bearing shaft 3', the right end of the second-level right beam 2 'is provided with a right support lug 21' hinged with the bearing platform, the left end of the second-level right beam 2 'is provided with a second-level right bearing shaft 4', and the lower sides of the front end and the rear end of the second-level right bearing shaft 4 'are respectively padded with a third-level right beam 5' arranged on the bearing platform.
Through the structure arrangement, the proportional distribution type large load transfer device is compact in structure, high in integration level, high in bearing strength, safe and reliable. In practical application, a product is placed on the first-level beam 1, and according to the multi-level lever principle, the acting force of the product on the first-level beam 1 can be transmitted to the left support lug 21, the right support lug 21 ', the third-level left beam 5 and the third-level right beam 5 ' step by step through the first-level beam 1, the second-level left beam 2, the second-level right beam 2 ', the first-level left support shaft 3, the first-level right support shaft 3 ', the second-level left support shaft 4 and the second-level right support shaft 4 ', so that the technical purpose of distributing the load to different positions on the bearing platform in proportion is achieved. Suppose the acting force of the product on the primary beam 1 is F1The stress of each part and the hinge point in the transmission device can be calculated according to the following formula,
F2＝F1×L12/(L11+L12) ①
F2’＝F1×L11/(L11+L12) ②
F21＝F2×L22/(L21+L22) ③
F22＝F2×L21/(L21+L22) ④
F21’＝F2’×L22’/(L21’+L22’) ⑤
F22’＝F2’×L21’/(L21’+L22’) ⑥
F31＝F22×L32/(L31+L32) ⑦
F32＝F22×L31/(L31+L32) ⑧
F31’＝F22’×L32’/(L31’+L32’) ⑨
F32’＝F22’×L31’/(L31’+L32’) ⑩
in equation R-R, F2Representing the force applied to the second left beam 2, F2'represents the force applied to the secondary right beam 2', L11Showing the left bearing shaft 3 to F of the primary stage1Distance of center, L12Representing a primary right bearing shaft 3' to F1The distance of the center; f21Showing the force applied to the left lug 21, F22Indicating the force, L, of the secondary left bearing shaft 421Indicating the distance of the left lug 21 from the primary left bearing shaft 3From, L22Represents the distance from the secondary left bearing shaft 4 to the primary left bearing shaft 3; f21'indicates the force applied to the right lug 21', F22'indicates the force applied to the secondary right bearing shaft 4', L21' denotes the distance from the right lug 21 ' to the primary right bearing shaft 3 ', L22' represents the distance from the secondary right bearing shaft 4 ' to the primary right bearing shaft 3 '; f31Showing the force, F, of the front tertiary left beam 532Showing the force, L, of the rear tertiary left beam 531Denotes the distance, L, from the front tertiary left beam 5 to the transverse axis of the secondary left beam 232The distance from the rear-side third-level left beam 5 to the transverse axis of the second-level left beam 2 is shown; f31'represents the force applied to the front tertiary right beam 5', F32'represents the force of the rear three-level Right Beam 5'. L31' denotes the distance from the front tertiary right beam 5 ' to the transverse axis of the secondary right beam 2 ', L32' denotes the distance of the rear tertiary right beam 5 ' to the transverse axis of the secondary right beam 2 '.
Through the analysis, according to the structural characteristics of the bearing table, the purpose of accurately distributing the load in proportion can be realized by pertinently controlling the lengths and the hinge point positions of the primary beam 1, the secondary left beam 2, the secondary right beam 2 ', the primary left bearing shaft 3, the primary right bearing shaft 3', the secondary left bearing shaft 4, the secondary right bearing shaft 4 ', the tertiary left beam 5 and the tertiary right beam 5'. It should be noted that the load and force are understood in the present text as the same concept, but for the convenience of description and distinction; the product refers to a bearing object arranged on the primary beam 1, and the bearing platform refers to a platform or a rack for supporting the product, and in practical application, the bearing platform can be a fixed supporting platform and can also be a supporting rack of equipment such as a transfer trolley, a transport vehicle and the like.
As an optimized scheme, the second-level left beam 2 and the second-level right beam 2' are hinged to the first-level beam 1 in the following manner: three first hinge parts 11 which are distributed at intervals in the front-back direction are arranged on the left half part of the primary beam 1, and three second hinge parts 11' which are distributed at intervals in the front-back direction are arranged on the right half part of the primary beam 1. Correspondingly, two third hinge parts 22 are arranged on the right half part of the secondary left beam 2, so that the two third hinge parts 22 are respectively clamped between the adjacent first hinge parts 11, and the primary left bearing shaft 3 sequentially passes through the first hinge parts 11 and the third hinge parts 22; two fourth hinges 22 ' are disposed on the left half portion of the secondary right beam 2 ', the two fourth hinges 22 ' are respectively clamped between the adjacent second hinges 11 ', and the primary right bearing shaft 3 ' sequentially passes through the second hinges 11 ' and the fourth hinges 22 '. The hinge mode of the cross structure can effectively enhance the structural strength and the stability of load transmission, and is beneficial to reducing the height of the device, reducing the size and saving the space. In order to facilitate the layout, the first-level beam 1 and the first hinge part 11 and the second hinge part 11' adopt a structure with flush upper side surfaces; the third hinge part 22 is flush with the upper side surfaces of the first hinge parts 11, the secondary left bearing shaft 4 penetrates through the three first hinge parts 11, and the tertiary left beam 5 is positioned outside the three first hinge parts 11; similarly, the fourth hinge 22 'and the second hinge 11' are made flush with each other on their upper sides, the secondary right bearing shaft 4 'is made to pass through the three second hinges 11', and the tertiary right beam 5 'is made to be outside the three second hinges 11'. The structure not only improves the compactness of the structure, but also ensures the reliable transmission of the load through slight deformation of the transmission device when the stress deviates from the center of the primary beam 1. It should be noted that, in order to improve the balance of structure and stress in practical application, the invention generally makes the primary beam 1, the secondary left beam 2 and the secondary right beam 2' adopt front-back symmetrical structures; and the first hinge part 11, the second hinge part 11 ', the third hinge part 22 and the fourth hinge part 22' are made to have the same height, so as to further improve the structural compactness.
As a specific embodiment, in order to realize the purpose of reducing weight, the invention leads the primary beam 1, the secondary left beam 2 and the secondary right beam 2' to adopt hollow structures welded by plates. To ensure the structure and the supporting strength, the present embodiment provides the first hinge part 11 with a first connection hole, and the first bushing 12 is fixed in the first connection hole, the second hinge part 11 ' with a second connection hole, and the second bushing 12 ' in the second connection hole, the third hinge part 22 with a third connection hole, and the third bushing 23 in the third connection hole, the fourth hinge part 22 ' with a fourth connection hole, and the fourth bushing in the fourth connection hole; wherein, the first-level left bearing shaft 3 is arranged in the first sleeve 12 and the third sleeve 23 in a penetrating way, and the first-level right bearing shaft 3 'is arranged in the second sleeve 12' and the fourth sleeve in a penetrating way. Similarly, in the present embodiment, the third hinge portion 22 is provided with a fifth connection hole, and a fifth sleeve 24 is fixed in the fifth connection hole, so that the second-stage left bearing shaft 4 is inserted into the fifth sleeve 24; the fourth hinge portion 22 'is provided with a sixth connecting hole, and a sixth sleeve is fixed in the sixth connecting hole, so that the secondary right bearing shaft 4' is arranged in the sixth sleeve in a penetrating manner. It should be noted that, in practical applications, the present invention generally uses the same structure for the secondary left beam 2 and the secondary right beam 2 ', and uses the welding fixing method for the first sleeve 12, the second sleeve 12', the third sleeve 23, the fourth sleeve, the fifth sleeve 24, and the sixth sleeve, but is not limited thereto, and other fixing methods may also be used. For the convenience of structural arrangement, the present embodiment further provides a first through hole 13 on the first hinge portion 11, and the secondary left bearing shaft 4 passes through the first through hole 13; a second through hole 13 'is provided on the second hinge portion 11' and the secondary right bearing shaft 4 'is passed through the second through hole 13'. In order to improve the stability of the support, the third-level left beam 5 and the third-level right beam 5 ' are respectively provided with an arc-shaped groove, and the two ends of the second-level left bearing shaft 4 are located in the arc-shaped grooves corresponding to the third-level left beam 5, and the two ends of the second-level right bearing shaft 4 ' are located in the arc-shaped grooves corresponding to the third-level right beam 5 '.
As a specific embodiment, on the basis of ensuring the structure and the supporting strength, in order to enhance the weight reduction effect, the first weight reduction hole 14 is provided on the first hinge portion 11, the second weight reduction hole 14 ' is provided on the second hinge portion 11 ', the third weight reduction hole 25 is provided on the third hinge portion 22, and the fourth weight reduction hole is provided on the fourth hinge portion 22 '. In order to improve the adaptability to bearing products, the middle part of the upper side of the primary beam 1 adopts a disc-shaped structure, and the third-stage left beam 5 and the third-stage right beam 5' also adopt a hollow structure formed by welding plates. It should be noted that, in order to ensure the structural stability and the connection stability, the present invention generally provides two left lugs 21 and two right lugs 21 ', respectively, and the two left lugs 21 and the two right lugs 21' are symmetrically spaced in the front-back direction.
The above examples are only for describing the preferred embodiments of the present invention, and do not limit the scope of the claimed invention, and various modifications made by those skilled in the art according to the technical solutions of the present invention should fall within the scope of the invention defined by the claims without departing from the design concept of the present invention.
Claims (10)
1. The proportional distribution type large load transfer device is characterized by comprising a primary beam (1), a secondary left beam (2) and a secondary right beam (2'), wherein the middle part of the secondary left beam (2) is hinged with the left end of the primary beam (1) through a primary left bearing shaft (3), the left end of the secondary left beam (2) is provided with a left support lug (21) hinged with a bearing platform, the right end of the secondary left beam (2) is provided with a secondary left bearing shaft (4), and the lower sides of the front end and the rear end of the secondary left bearing shaft (4) are respectively provided with a tertiary left beam (5) arranged on the bearing platform in a cushioning manner; the middle part of the second-stage right beam (2 ') is hinged with the right end of the first-stage beam (1) through a first-stage right bearing shaft (3'), the right end of the second-stage right beam (2 ') is provided with a right supporting lug (21') hinged with the bearing platform, the left end of the second-stage right beam (2 ') is provided with a second-stage right bearing shaft (4'), and the lower sides of the front end and the rear end of the second-stage right bearing shaft (4 ') are respectively provided with a third-stage right beam (5') arranged on the bearing platform in a cushioning manner.
2. A proportionally distributed large load transferring device according to claim 1, wherein the left half of said primary beam (1) is provided with three first hinge portions (11) spaced back and forth, and the right half of said primary beam (1) is provided with three second hinge portions (11') spaced back and forth; the right half part of the secondary left beam (2) is provided with two third hinged parts (22), the two third hinged parts (22) are respectively positioned between the adjacent first hinged parts (11), the primary left bearing shaft (3) sequentially passes through the first hinged parts (11) and the third hinged parts (22), the left half part of the secondary right beam (2 ') is provided with two fourth hinged parts (22 '), the two fourth hinged parts (22 ') are respectively positioned between the adjacent second hinged parts (11 '), and the primary right bearing shaft (3 ') sequentially passes through the second hinged parts (11 ') and the fourth hinged parts (22 ').
3. A proportionally large load transferring device according to claim 2, characterized in that the upper side of the primary beam (1) and its first (11) and second (11') articulations are flush; the third hinge part (22) is flush with the upper side of the first hinge parts (11), the secondary left bearing shaft (4) penetrates through the three first hinge parts (11), and the tertiary left beam (5) is positioned outside the three first hinge parts (11); the upper sides of the fourth hinge (22 ') and the second hinge (11') are flush, the secondary right bearing shaft (4 ') passes through the three second hinges (11'), and the tertiary right beam (5 ') is outside the three second hinges (11').
4. A proportionally distributed large load transfer device according to claim 3, wherein the primary beam (1), the secondary left beam (2) and the secondary right beam (2') are all hollow structures welded by plates; the first hinge part (11) is provided with a first connecting hole, a first sleeve (12) is fixed in the first connecting hole, the second hinge part (11 ') is provided with a second connecting hole, a second sleeve (12 ') is fixed in the second connecting hole, the third hinge part (22) is provided with a third connecting hole, a third sleeve (23) is fixed in the third connecting hole, a fourth connecting hole is formed in the fourth hinge part (22 '), and a fourth sleeve is fixed in the fourth connecting hole; the primary left bearing shaft (3) is arranged in the first sleeve (12) and the third sleeve (23) in a penetrating mode, and the primary right bearing shaft (3 ') is arranged in the second sleeve (12') and the fourth sleeve in a penetrating mode.
5. The proportion distribution type large load transfer device according to claim 4, wherein the third hinge part (22) is provided with a fifth connecting hole, a fifth sleeve (24) is fixed in the fifth connecting hole, and the secondary left bearing shaft (4) is arranged in the fifth sleeve (24) in a penetrating manner; the fourth hinge part (22 ') is provided with a sixth connecting hole, a sixth sleeve is fixed in the sixth connecting hole, and the secondary right bearing shaft (4') penetrates through the sixth sleeve.
6. A proportionally large load transferring device according to claim 5, wherein the first articulation (11) is provided with a first through hole (13), the secondary left load bearing shaft (4) passing through the first through hole (13); the second hinge part (11 ') is provided with a second through hole (13'), and the secondary right bearing shaft (4 ') penetrates through the second through hole (13').
7. A proportionally large load transferring device according to claim 6, characterized in that the tertiary left beam (5) and the tertiary right beam (5 ') are provided with arc-shaped grooves, respectively, both ends of the secondary left bearing shaft (4) are in the arc-shaped grooves of the corresponding tertiary left beam (5), and both ends of the secondary right bearing shaft (4 ') are in the arc-shaped grooves of the corresponding tertiary right beam (5 ').
8. A proportionally large load transferring device according to claim 6, wherein the first hinging part (11) is provided with a first lightening hole (14), the second hinging part (11 ') is provided with a second lightening hole (14 '), the third hinging part (22) is provided with a third lightening hole (25), and the fourth hinging part (22 ') is provided with a fourth lightening hole.
9. A proportionally large load transferring device according to claim 6, characterized in that the upper middle part of the primary beam (1) is disc-shaped; the first, second, third and fourth hinges (11, 11 ', 22') are of the same height; the three-level left beam (5) and the three-level right beam (5') are formed by welding plates.
10. A proportionally large load transferring device according to claim 6, wherein there are two left lugs (21), and the two left lugs (21) are spaced apart in the front-rear direction; the number of the right support lugs (21 ') is two, and the two right support lugs (21') are distributed at intervals along the front-back direction.
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