Frame assembly and telescopic boom forklift truck

Abstract

The utility model belongs to the technical field of telescopic boom forklift lorry, and discloses a frame assembly and a telescopic boom forklift lorry, the frame assembly is used for installing a boom and a cab, the frame assembly comprises two side plates which are arranged in parallel and at an interval, the two side plates extend in the front-back direction of a truck body, the rear end portions of the two side plates are provided with boom installation holes, and the boom installation holes are communicated with the two side plates. The arm frame is used for being installed in the two arm frame installation holes, the cab is arranged in the middle of the two side plates, the rear ends of the two side plates protrude upwards relative to the middle of the two side plates in the vertical direction, and the arm frame installation holes are higher than the upper surfaces of the front ends of the side plates. The height difference H between the cantilever crane mounting hole and the upper surface of the front end part of the side plate is greater than or equal to 700mm, so that the height of the cantilever crane mounting hole is far higher than that of the upper surface of the front end part of the side plate, and the cab is arranged at a lower position, so that the influence of the cantilever crane on the visual field of the cab is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of telescopic arm forklifts, in particular to a frame assembly and a telescopic arm forklift. Background Art

[0002] Telescopic forklifts are widely used in construction sites, agriculture and animal husbandry, logistics industry, dock operations, aerial operations, trailer transportation, urban infrastructure and other industries, becoming an ideal and efficient loading and unloading tool for modern industry, construction and agriculture.

[0003] In a telescopic forklift, the arm is generally installed at the rear end of the frame and can rotate relative to the frame to complete the loading and unloading of items. In the prior art, the rotation connection position of the arm and the frame is generally low. When the arm is rotated to a lower position, the arm is easy to affect the field of vision of the cab, thereby affecting the safety and loading and unloading efficiency of the telescopic forklift. Utility Model Content

[0004] According to one aspect of the utility model, the utility model provides a frame assembly to solve the problem that in the telescopic arm forklift provided by the prior art, the rotation connection position between the arm and the frame is generally low, and the arm easily affects the field of vision of the cab.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A frame assembly is used to install an arm and a cab, the frame assembly includes two side panels that are parallel and spaced apart, the two side panels extend along the front-rear direction of the vehicle body, the rear end ends of the two side panels are provided with arm mounting holes, the arm is used to be installed in the two arm mounting holes, the cab is arranged in the middle part of the two side panels, along the vertical direction, the rear end ends of the two side panels protrude upward relative to the middle part of the two side panels, the arm mounting hole is higher than the upper surface of the front end end of the side panel, and the height difference H between the arm mounting hole and the upper surface of the front end end of the side panel satisfies: H≥700mm.

[0007] As a preferred solution for the frame assembly, the height difference between the arm mounting hole and the top of the cab does not exceed 308.5 mm.

[0008] As a preferred solution of the frame assembly, a driving seat is provided in the cab. Along the front and rear direction of the vehicle body, the distance between the arm mounting hole and the front end of the cab does not exceed 3133 mm, and the distance between the arm mounting hole and the rear end of the driving seat is not less than 2336 mm.

[0009] As a preferred solution of the vehicle frame assembly, it further comprises a fuel tank, which is connected to one of the side panels and is located on a side away from the other side panel.

[0010] As a preferred solution of the vehicle frame assembly, the fuel tank is arranged below the cab.

[0011] As a preferred solution of the vehicle frame assembly, it also includes a hydraulic oil tank, and two sides of the box body of the hydraulic oil tank are respectively connected to the rear ends of the two side panels.

[0012] As a preferred solution of the vehicle frame assembly, it also includes a structural member, and two sides of the structural member are respectively connected to the front ends of the two side panels.

[0013] As a preferred solution of the vehicle frame assembly, the structural member includes a plurality of structural plates connected in sequence, and both sides of the plurality of structural plates are respectively connected to the two side plates.

[0014] According to another aspect of the utility model, a telescopic forklift is provided, comprising the above-mentioned frame assembly, and also comprising an arm and a cab, wherein the arm is mounted on the two arm mounting holes, and the cab is arranged in the middle of the two side panels.

[0015] As a preferred embodiment of the telescopic forklift, the arm can rotate relative to the frame assembly and has a lowest limit position. When the arm is at the lowest limit position, the front end of the arm is located obliquely below the rear end of the arm, and the angle between the arm and the horizontal plane is not less than 5°.

[0016] The beneficial effects of the utility model are:

[0017] The utility model provides a frame assembly for installing an arm and a cab. The frame assembly comprises two side panels which are parallel and spaced apart. The two side panels extend along the front-rear direction of the vehicle body. The rear end portions of the two side panels are provided with arm mounting holes. The arm is used to be installed in the two arm mounting holes. The cab is arranged in the middle of the two side panels. In the vertical direction, the rear end portions of the two side panels protrude upward relative to the middle portions of the two side panels. The arm mounting holes are higher than the upper surfaces of the front end portions of the side panels. The height difference H between the arm mounting holes and the upper surfaces of the front end portions of the side panels satisfies: H≥700mm, so that the height of the arm mounting holes is much higher than the upper surfaces of the front end portions of the side panels. Since the cab is arranged in the middle of the two side panels, and the rear end portions of the two side panels protrude upward relative to the middle portions of the two side panels, the cab is arranged at a relatively low height, so as to avoid the arm affecting the field of vision of the cab.

[0018] The utility model also provides a telescopic forklift, including the above-mentioned frame assembly, and also including an arm and a cab, the arm is installed in two arm mounting holes, and the cab is arranged in the middle of two side plates. In the frame assembly, the height of the arm mounting hole is much higher than the upper surface of the front end of the side plate, and the cab is arranged at a lower height, so as to avoid the arm affecting the field of vision of the cab. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a telescopic arm forklift in the prior art;

[0020] Figure 2 The structure of the telescopic arm forklift in the embodiment of the utility model is schematically shown. Figure 1 ;

[0021] Figure 3 It is a side view schematic diagram of the frame assembly in the embodiment of the utility model;

[0022] Figure 4 The side view of the telescopic arm forklift in the embodiment of the utility model is shown in FIG. Figure 1 ;

[0023] Figure 5 It is a structural schematic diagram of another telescopic arm forklift in the prior art;

[0024] Figure 6 It is a structural schematic diagram of another telescopic arm forklift in the prior art;

[0025] Figure 7 It is a top view schematic diagram of the frame assembly in the embodiment of the utility model;

[0026] Figure 8 It is an axonometric view of the frame assembly in the embodiment of the utility model;

[0027] Fig. 9 The side view of the telescopic arm forklift in the embodiment of the utility model is shown in FIG. Figure 2 ;

[0028] Fig.10 It is a structural schematic diagram of another telescopic arm forklift in the prior art;

[0029] Fig.11 The structure of the telescopic arm forklift in the embodiment of the utility model is schematically shown. Figure 2 .

[0030] In the figure:

[0031] 1', fuel tank; 2', hydraulic oil tank; 3', cab;

[0032] 4', hydraulic oil tank; 5', frame;

[0033] 100', frame; 200', boom; 300', cab; 400', frame; 500', boom; 600', cab;

[0034] 100, frame assembly; 200, arm support; 300, cab; 301, driver's seat;

[0035] 1. Side panel; 11. Arm mounting hole;

[0036] 2. Fuel tank;

[0037] 3. Hydraulic oil tank;

[0038] 4. Structural parts; 41. Structural plates. DETAILED DESCRIPTION

[0039] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0040] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0042] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0043] In a telescopic forklift, the arm is generally installed at the rear end of the frame and can rotate relative to the frame to complete the loading and unloading of items. In the prior art, the rotation connection position of the arm and the frame is generally low. When the arm is rotated to a lower position, the arm is easy to affect the field of vision of the cab, thereby affecting the safety and loading and unloading efficiency of the telescopic forklift.

[0044] In view of the above problems, this embodiment provides a frame assembly to solve the problem that in the telescopic arm forklift provided by the prior art, the rotation connection position between the arm and the frame is generally low, and the arm easily affects the field of vision of the cab. It can be used in the technical field of telescopic arm forklifts.

[0045] Reference Figure 2-Figure 3 The frame assembly is used to install the boom 200 and the cab 300. The frame assembly includes two side panels 1 that are parallel and spaced apart. The two side panels 1 extend along the front-rear direction of the vehicle body. The rear end portions of the two side panels 1 are provided with boom mounting holes 11. The boom 200 is used to be installed in the two boom mounting holes 11. The cab 300 is arranged in the middle of the two side panels 1. In the vertical direction, the rear end portions of the two side panels 1 protrude upward relative to the middle portions of the two side panels 1. The boom mounting hole 11 is higher than the upper surface of the front end portion of the side panel 1, and the height difference H between the boom mounting hole 11 and the upper surface of the front end portion of the side panel 1 satisfies: H≥700mm, so that the height of the boom mounting hole 11 is much higher than the upper surface of the front end portion of the side panel 1. Since the cab is arranged in the middle portion of the two side panels 1, and the rear end portions of the two side panels 1 protrude upward relative to the middle portion of the two side panels 1, the cab 300 is arranged at a relatively low position, thereby preventing the boom 200 from affecting the field of vision of the cab 300. In this embodiment, the height difference H between the two is 720 mm.

[0046] by Figure 1-Figure 2 For example, Figure 1 The schematic diagram of the structure of a telescopic forklift in the prior art is shown, in which the height difference between the arm mounting hole and the upper surface of the front end of the frame 100 ′ is small, so the arm 200 ′ is installed at a lower position. Figure 2 The structure diagram of the telescopic arm forklift in the embodiment of the utility model is shown Figure 1In this embodiment, the height difference H between the arm mounting hole 11 and the upper surface of the front end of the side plate 1 is relatively large, so the installation position of the arm 200 is relatively high. Figure 1 In the embodiment, the angle α between the arm 200 ′ and the frame 100 ′ is 8°, which may block the field of vision of the cab 300 ′ to a certain extent. Figure 2 In the embodiment, the angle α between the arm 200 and the side plate 1 of the frame assembly 100 is also 8°, which is the same as Figure 1 Compared with the prior art shown, it obstructs the view of the cab 300 less.

[0047] Reference Figure 3-Figure 4 In this embodiment, the height difference between the arm mounting hole 11 and the top of the cab does not exceed 308.5 mm, which can ensure that the height difference between the arm mounting hole 11 and the top of the cab is small, so that the arm 200 can be set at a higher position, further avoiding the arm 200 from affecting the field of vision of the cab 300.

[0048] Continue to refer to Figure 3-Figure 4 Since the installation height of the arm 200 is relatively high, a large-sized frame is required to ensure the stability of the chassis. In this regard, in the present embodiment, a driver's seat 301 is provided in the cab 300. Along the front-to-back direction of the vehicle body, the distance between the arm mounting hole 11 and the front end of the cab 300 is no more than 3133 mm, and the distance between the arm mounting hole 11 and the rear end of the driver's seat 301 is no less than 2336 mm. On the one hand, the cab 300 can be set in the middle of the side panel 1 to ensure the stability of the chassis; on the other hand, the distance between the driver's eyes and the arm mounting hole 11 can be between 2336 mm and 3133 mm to ensure the driver's field of vision.

[0049] Figure 5-Figure 6 Schematic diagrams of the structures of two other prior art telescopic forklifts are shown. Figure 5 As shown, in one of the telescopic forklifts, the fuel tank 1' and the hydraulic oil tank 2' are both arranged below the cab 3', but this solution will limit the chassis height of the telescopic forklift and the space of the cab 3'. Figure 6 As shown, in another telescopic forklift, the hydraulic oil tank 4' is arranged on one side of the frame 5', but this solution easily leads to unbalanced forces on the left and right sides of the frame 5', affecting the stability of the telescopic forklift.

[0050] For the above problems, refer to Figure 7-Figure 9The frame assembly also includes a hydraulic oil tank 3, and the two sides of the hydraulic oil tank 3 are respectively connected to the rear ends of the two side panels 1. This arrangement can save space on the one hand and avoid affecting the height of the chassis and the balance of the frame assembly. On the other hand, the hydraulic oil tank 3 can be used as a part of the frame assembly, connecting the two side panels 1, and can play the role of a frame crossbeam, which can enhance the structural strength of the frame assembly. In addition, the hydraulic oil tank 3 is arranged at the rear ends of the two side panels 1 to balance the weight and provide hydraulic oil for the movement of the arm 200.

[0051] Continue to refer to Figure 7-Figure 9 The frame assembly further includes a fuel tank 2, which is connected to one of the side panels 1 and is located on a side away from the other side panel 1, so as to facilitate the installation of the fuel tank 2 and the replenishment of fuel.

[0052] Optionally, the fuel tank 2 is arranged below the cab 300. Specifically, the fuel tank 2 may be square. In the present embodiment, the fuel tank 2 is in other shapes so that the shape of the fuel tank 2 matches the lower bulkhead of the cab 300, and the tank wall of the fuel tank 2 fits with the lower end V of the cab 300 to further save space.

[0053] Continue to refer to Figure 7-Figure 9 The frame assembly further includes a structural member 4, the two sides of which are respectively connected to the front ends of the two side panels 1, thereby improving the structural strength of the front ends of the side panels 1. In this embodiment, the structural member 4 is provided at the front end of the side panel 1, and the hydraulic oil tank 3 is provided at the rear end, which can improve the overall structural strength of the frame assembly.

[0054] Optionally, the structural member 4 includes a plurality of structural plates 41 connected in sequence, and both sides of the plurality of structural plates 41 are respectively connected to the two side plates 1 to improve the strength of the connection structure at the front ends of the two side plates 1. Optionally, the head and tail ends of the plurality of structural plates 41 connected in sequence are connected to form a square or other shaped structure to form a box-like structure, further improving the structural strength of the frame assembly.

[0055] The present embodiment also provides a telescopic forklift, including the above-mentioned frame assembly, and also including a boom 200 and a cab 300, wherein the boom 200 is installed in two boom mounting holes 11, and the cab 300 is arranged in the middle of two side panels 1. In the frame assembly, the height of the boom mounting hole 11 is much higher than the upper surface of the front end of the side panel 1, and the cab 300 is arranged at a relatively low height, so as to avoid the boom 200 affecting the field of vision of the cab 300.

[0056] Fig.10 A schematic diagram of the structure of another telescopic forklift in the prior art is shown. Fig.10In the conventional solution, since the height of the boom mounting hole is relatively low and in order to avoid a significant impact on the field of view of the cab 600', the rotation angle of the boom 500' relative to the frame 400' is limited, and the lowest position of the boom 500' is generally parallel to the horizontal plane.

[0057] In this regard, refer to Fig.11 , the arm 200 can rotate relative to the frame assembly and reach the lowest limit position. Since the height of the arm mounting hole 11 in this embodiment is much higher than the upper surface of the front end of the side plate 1, that is, the arm mounting hole 11 is set at a higher position, and the cab 300 is set at a lower height, the rotation range of the arm 200 can be increased. When the arm 200 is at the lowest limit position, the front end of the arm 200 is located obliquely below the rear end of the arm 200, and the angle between the arm 200 and the horizontal plane is not less than 5°, which is 5.5° in this embodiment. Compared with the prior art, after the arm 200 moves to be parallel to the horizontal plane, it can still continue to rotate downward to improve the convenience of loading and unloading of items, so that the telescopic arm forklift has a wider range of application scenarios.

[0058] Optionally, the arm 200 can also rotate relative to the frame assembly to have a highest limit position. When the arm 200 is located at the highest limit position, the angle between the arm 200 and the horizontal plane is 90°.

[0059] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A vehicle frame assembly, used for mounting an arm (200) and a cab (300), characterized in that: The frame assembly comprises two parallel and spaced side panels (1), the two side panels (1) extending in the front-rear direction of the vehicle body, the rear end portions of the two side panels (1) being provided with an arm mounting hole (11), the arm (200) being used for mounting in the two arm mounting holes (11), the cab (300) being arranged in the middle of the two side panels (1), the rear end portions of the two side panels (1) protruding upward relative to the middle of the two side panels (1) in the vertical direction, the arm mounting hole (11) being higher than the upper surface of the front end portion of the side panel (1), and the height difference H between the arm mounting hole (11) and the upper surface of the front end portion of the side panel (1) satisfying: H≥700mm.

2. The frame assembly according to claim 1, characterized in that: The height difference between the arm mounting hole (11) and the top of the cab does not exceed 308.5 mm.

3. The frame assembly according to claim 1, characterized in that: A driving seat (301) is arranged in the driving cab (300); along the front-rear direction of the vehicle body, the distance between the arm mounting hole (11) and the front end of the driving cab (300) is no more than 3133 mm, and the distance between the arm mounting hole (11) and the rear end of the driving seat (301) is no less than 2336 mm.

4. The vehicle frame assembly according to claim 1, characterized in that: It also comprises a fuel tank (2), which is connected to one of the side panels (1) and is located on a side away from the other side panel (1).

5. The vehicle frame assembly according to claim 4, characterized in that: The fuel tank (2) is arranged below the cab (300).

6. The vehicle frame assembly according to claim 1, characterized in that: It also comprises a hydraulic oil tank (3), the two sides of the box body of the hydraulic oil tank (3) are respectively connected to the rear ends of the two side plates (1).

7. The vehicle frame assembly according to any one of claims 1 to 6, characterized in that: It also comprises a structural member (4), the two sides of which are respectively connected to the front ends of the two side panels (1).

8. The vehicle frame assembly according to claim 7, characterized in that: The structural member (4) comprises a plurality of structural plates (41) connected in sequence, and both sides of the plurality of structural plates (41) are respectively connected to the two side plates (1).

9. A telescopic forklift, characterized in that: It comprises a frame assembly as described in any one of claims 1 to 8, and also comprises an arm (200) and a cab (300), wherein the arm (200) is mounted on the two arm mounting holes (11), and the cab (300) is arranged in the middle of the two side panels (1).

10. The telescopic forklift according to claim 9, characterized in that: The arm (200) can rotate relative to the frame assembly and has a lowest limit position. When the arm (200) is located at the lowest limit position, the front end of the arm (200) is located obliquely below the rear end of the arm (200), and the angle between the arm (200) and the horizontal plane is not less than 5°.

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