CN114275711A - Hook type drive axle for new energy forklift - Google Patents
Hook type drive axle for new energy forklift Download PDFInfo
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- CN114275711A CN114275711A CN202111651343.0A CN202111651343A CN114275711A CN 114275711 A CN114275711 A CN 114275711A CN 202111651343 A CN202111651343 A CN 202111651343A CN 114275711 A CN114275711 A CN 114275711A
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- drive axle
- hook type
- forklift
- axle body
- new energy
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Abstract
The invention discloses a hook type drive axle for a new energy forklift, which comprises a drive axle body, wherein hook type sector plates are respectively arranged at two ends of the drive axle body, the hook type sector plates are sleeved on the drive axle body, one surface of each of the two hook type sector plates, which is far away from the center of the drive axle body, is fixedly provided with a brake, and two ends of the drive axle body are provided with hub brake drum assemblies; the hook type sector plate is fixedly connected with a forklift gantry. The invention greatly improves the reliability and durability of the drive axle of the new energy forklift truck and shortens the length of the whole axle, meanwhile, the length of the whole axle is shortened, the quality of the whole automobile is greatly reduced, the cruising ability of the whole automobile is improved, the cost of the whole automobile is reduced, the bearing strength is improved, the risk of casting defects is reduced, the limitation of the operation environment is improved, and meanwhile, the safety risk is prevented.
Description
Technical Field
The invention belongs to the technical field of industrial vehicles, and particularly relates to a hook type drive axle for a new energy forklift.
Background
The forklift is widely applied to places such as factories, warehouses, stations, ports, airports and the like, and is a material handling vehicle for mechanized loading and unloading, stacking and short-distance transportation; the forklift drive axle and the forklift portal frame of the traditional structure are connected in a Harvard mode, so that the drive axle body cannot be lengthened, the wheel track of the whole forklift and the front suspension distance of the fork are lengthened, the weight of the whole forklift is increased, the carrying capacity is reduced, the extra load of a new energy forklift battery is increased, the cruising ability of the forklift is shortened, and meanwhile, the drive axle and the whole forklift cost are also increased relatively. In terms of casting technology, because the forklift drive axle and the forklift gantry are connected in a Harvard mode, machining allowance is required to be reserved at the Harvard position of the drive axle body during casting, the wheel span of the whole axle is lengthened, the moment arm is lengthened, and the moment arm are in a direct proportion relation, the wall thickness of the drive axle must be thickened in order to meet the requirements of the use strength and the service life of the drive axle, so that the difficulty of the casting technology is increased, and potential quality risks such as casting air holes and the like generated during casting of the axle body are increased. From the assembly process, because the forklift drive axle and the forklift portal frame of the traditional structure are connected in a Harvard mode, and because the space between the whole forklift portal frame and the drive axle body is limited, the assembly and disassembly difficulty of workers is increased, and the assembly efficiency is reduced. In terms of the using environment, the forklift drive axle and the forklift gantry are connected in a Harvard mode, so that the whole forklift is relatively widened, the wheel track is lengthened, the front suspension distance of the fork is increased, and the cargo carrying capacity is reduced. In the case of use in a narrow space in some market environments, the forklift is subject to certain use limitations. Therefore, a hitch axle is needed.
Disclosure of Invention
The invention aims to provide a hook type drive axle for a new energy forklift, and solves the problems that in the prior art, the fork type drive axle is connected with a forklift portal in a half-type manner, so that the front suspension distance between a drive axle body and a fork is lengthened, the wheel span of the whole forklift is lengthened, the bearing capacity is insufficient, extra load is increased, and the cruising ability of the forklift is influenced.
The purpose of the invention can be realized by the following technical scheme:
a hook type drive axle for a new energy forklift comprises a drive axle body, hook type sector plates are respectively arranged at two ends of the drive axle body and are sleeved on the drive axle body, a brake is fixedly arranged on one surface, away from the center of the drive axle body, of each of the two hook type sector plates, and hub brake drum assemblies are arranged at two ends of the drive axle body;
the hook type sector plate is fixedly connected with a forklift gantry.
According to a further scheme of the invention, the hook type sector plate comprises a main rod, a first connecting rod and a second connecting rod are arranged on the outer side wall of the main rod, the main rod is sleeved on two ends of the drive axle body, and the first connecting rod and the second connecting rod are fixedly connected with the forklift gantry.
As a further scheme of the invention, the first connecting rod and the second connecting rod are integrated with the main rod into a whole.
As a further scheme of the invention, the drive axle body, the hook type sector plate and the hub brake drum assembly are all cast by high-strength ductile cast iron with the tensile strength of more than 450MPa and the elongation of more than 15%.
As a further scheme of the invention, second oil seals are arranged in inner holes at two ends of the drive axle body.
As a further aspect of the invention, the half shaft is mounted to the hub brake drum assembly via two cylindrical pins and a hub nut.
The invention has the beneficial effects that:
according to the invention, the hook type sector plates are arranged on the drive axle body, and can be directly and fixedly connected with the portal frame through the hook type sector plates, compared with the traditional Harvard type connection, the reliability and the durability of the drive axle of the new energy forklift can be greatly improved, the length of the whole axle is shortened, meanwhile, the front suspension distance of the fork is greatly shortened, the cargo carrying capacity is improved by more than 15%, the quality of the whole automobile is reduced, the endurance capacity of the whole automobile is improved, the cost of the whole automobile is reduced, the bearing strength is improved, the casting defect risk is reduced, the limitation of the operation environment is improved, and the safety risk is prevented.
Drawings
The invention will be further described with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of a hook type drive axle for a new energy forklift of the present invention;
FIG. 2 is a schematic view of the connection structure of the brake and the hook type sector plate of the present invention;
FIG. 3 is a view taken in the direction A of FIG. 2;
FIG. 4 is a schematic structural view of a hook sector plate of the present invention;
FIG. 5 is a schematic view of the connection structure of the hub brake drum assembly of the present invention;
FIG. 6 is an enlarged view of the structure at B in FIG. 4;
in the figure: 1. a drive axle body; 2. a hook-type sector plate; 4. a brake; 6. a hub brake drum assembly; 7. a cylindrical pin; 8. a half shaft; 9. a venting plug; 10. an oil drain plug screw; 11. a brake hinge bolt; 12. a brake attachment bolt; 13. a tapered roller bearing; 15. a first oil seal; 16. a round nut; 17. a binaural stop washer; 18. a hexagon head bolt; 19. a spring washer; 20. a second oil seal; 21. a main rod; 22. a first connecting rod; 23. a second connecting rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A hook type drive axle for a new energy forklift comprises a drive axle body 1, wherein a ventilation plug 9 and an oil drain plug 10 are arranged on the drive axle body 1, hook type sector plates 2 are respectively arranged at two ends of the drive axle body 1, the hook type sector plates 2 are sleeved at two ends of the drive axle body 1, a brake 4 is fixedly arranged on one surface, far away from the drive axle body 1, of each of the two hook type sector plates 2 through a brake hinged bolt 11 and a brake connecting bolt 12, and hub brake drum assemblies 6 are arranged at two ends of the drive axle body 1;
in one embodiment of the present invention, the number of the brake hinge bolts 11 is two, and the number of the brake coupling bolts 12 is six;
the hook type sector plate 2 comprises a main rod 21, a first connecting rod 22 and a second connecting rod 23 are arranged on the outer side wall of the main rod 21, and in one embodiment of the invention, the first connecting rod 22 and the second connecting rod 23 are integrated with the main rod 21;
the main rod 21 is of a hollow rod structure, the hook type sector plate 2 is sleeved on two ends of the drive axle body 1 through the main rod 21, and the hook type sector plate 2 is fixedly connected with the forklift gantry through a first connecting rod 22 and a second connecting rod 23;
compared with the traditional Harvard type connection, the hook type sector plate 2 can greatly improve the reliability and durability of the drive axle of the new energy forklift and shorten the length of the whole axle and the front suspension distance of the fork;
the drive axle body 1, the two hook type fan-shaped plates 2 and the two hub brake drum assemblies 6 are cast by high-strength nodular cast iron with the tensile strength of more than 450Mpa and the elongation of more than 15 percent, and have compact structure and attractive appearance, thereby improving the labor efficiency and the product quality;
as shown in fig. 5 and 6, second oil seals 20 are arranged in inner holes at two ends of the drive axle body 1 to prevent gear oil in the inner cavity of the drive axle body 1 from spilling;
a first oil seal 15 and two tapered roller bearings 13 are arranged in the hub brake drum assembly 6, and the hub brake drum assembly 6 is fixed at two ends of the drive axle body 1 through a round nut 16, a double-lug stop washer 17, a hexagon head bolt 18 and a spring washer 19;
a half shaft 8 is fixedly arranged on the hub brake drum assembly 6 through two cylindrical pins 7 and a hub nut;
two cylindrical pins 7 are respectively arranged in corresponding holes on the end surface of the hub brake drum assembly 6, and then the half shafts 8 are respectively arranged at two ends of the drive axle assembly.
According to the invention, the hook type sector plates 2 are fixedly sleeved at the two ends of the drive axle body 1 and then fixedly connected with the forklift gantry through the hook type sector plates 2, compared with the traditional Harvard type connection, the front suspension distance of a fork is shortened, the carrying capacity of the forklift is improved, and the whole weight of the forklift is further shortened.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (6)
1. A hook type drive axle for a new energy forklift comprises a drive axle body (1) and is characterized in that hook type sector plates (2) are arranged at two ends of the drive axle body (1) respectively, the hook type sector plates (2) are sleeved on the drive axle body (1), one brake (4) is fixedly installed on one surface, far away from the center of the drive axle body (1), of each of the two hook type sector plates (2), and hub brake drum assemblies (6) are installed at two ends of the drive axle body (1);
the hook type sector plate (2) is fixedly connected with a forklift gantry.
2. The hook type drive axle for the new energy forklift as claimed in claim 1, wherein: the hook type sector plate (2) comprises a main rod (21), a first connecting rod (22) and a second connecting rod (23) are arranged on the outer side wall of the main rod (21), the main rod (21) is sleeved on two ends of the drive axle body (1), and the first connecting rod (22) and the second connecting rod (23) are fixedly connected with a forklift gantry.
3. The hook type drive axle for the new energy forklift as claimed in claim 2, wherein: the first connecting rod (22) and the second connecting rod (23) are integrated with the main rod (21).
4. The hook type drive axle for the new energy forklift as claimed in claim 1, wherein: the drive axle body (1), the hook type sector plate (2) and the hub brake drum assembly (6) are all cast by high-strength ductile cast iron with the tensile strength of more than 450MPa and the elongation of more than 15%.
5. The hook type drive axle for the new energy forklift as claimed in claim 1, wherein: and second oil seals (20) are arranged in inner holes at two ends of the drive axle body (1).
6. The hook type drive axle for the new energy forklift as claimed in claim 1, wherein: the half shaft (8) is arranged on the hub brake drum assembly (6) through two cylindrical pins (7) and a hub nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111651343.0A CN114275711A (en) | 2021-12-30 | 2021-12-30 | Hook type drive axle for new energy forklift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111651343.0A CN114275711A (en) | 2021-12-30 | 2021-12-30 | Hook type drive axle for new energy forklift |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114275711A true CN114275711A (en) | 2022-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111651343.0A Pending CN114275711A (en) | 2021-12-30 | 2021-12-30 | Hook type drive axle for new energy forklift |
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| Country | Link |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003080903A (en) * | 2001-09-11 | 2003-03-19 | Sumitomonacco Materials Handling Co Ltd | Drive axle of industrial vehicle |
| CN201423888Y (en) * | 2009-01-12 | 2010-03-17 | 广西柳工机械股份有限公司 | Electric forklift drive axle |
| CN204955923U (en) * | 2015-07-17 | 2016-01-13 | 安徽合力股份有限公司安庆车桥厂 | Storage type fork truck is with horizontal formula steamboat apart from storage battery transaxle |
| CN113120810A (en) * | 2019-12-30 | 2021-07-16 | 林德（中国）叉车有限公司 | Connecting assembly and forklift using same |
| CN215592530U (en) * | 2021-08-25 | 2022-01-21 | 株洲齿轮有限责任公司 | Integral electric forklift drive axle |
-
2021
- 2021-12-30 CN CN202111651343.0A patent/CN114275711A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003080903A (en) * | 2001-09-11 | 2003-03-19 | Sumitomonacco Materials Handling Co Ltd | Drive axle of industrial vehicle |
| CN201423888Y (en) * | 2009-01-12 | 2010-03-17 | 广西柳工机械股份有限公司 | Electric forklift drive axle |
| CN204955923U (en) * | 2015-07-17 | 2016-01-13 | 安徽合力股份有限公司安庆车桥厂 | Storage type fork truck is with horizontal formula steamboat apart from storage battery transaxle |
| CN113120810A (en) * | 2019-12-30 | 2021-07-16 | 林德（中国）叉车有限公司 | Connecting assembly and forklift using same |
| CN215592530U (en) * | 2021-08-25 | 2022-01-21 | 株洲齿轮有限责任公司 | Integral electric forklift drive axle |
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