Cantilever support for forklift and three-way piling car

Abstract

The cantilever support for the forklift comprises a first side vertical plate, a second side vertical plate, a middle vertical plate and a first sealing plate, the first side vertical plate and the second side vertical plate are oppositely arranged, the middle vertical plate and the first sealing plate are oppositely arranged, and the first side vertical plate, the first sealing plate, the second side vertical plate and the middle vertical plate are connected end to end to form a first installation space in an enclosing mode; the structure further comprises a second sealing plate, the second sealing plate is connected with the first side vertical plate, the second side vertical plate and the middle vertical plate and serves as the bottom face of the first installation space, and a first installation hole is reserved between the second sealing plate and the first sealing plate and used for exposing parts in the first installation space to be connected with external components. The cantilever support for the forklift is simple in structure, high in structural strength and sufficient in internal space, and other devices can be conveniently installed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of logistics handling, concretely relates to a cantilever frame for forklift and three-way stacking vehicle. BACKGROUND

[0002] The three-way stacking vehicle is a kind of equipment specially used for high-efficiency storage and retrieval of goods in warehouse and logistics center, can be operated in narrow aisle, which greatly improves the space utilization of warehouse.The main feature of this vehicle is that it can access goods from three directions-front, left and right, which improves the space utilization efficiency of warehouse.Current three-way stacking vehicles usually have the functions of lifting and steering, and in order to realize the functions of lifting and steering, they are equipped with multiple structures such as steering device and lifting mechanism.

[0003] The existing three-way stacking vehicle usually has one or more levels of portal, supports the lifting system and allows the fork carriage to move up and down along the track, and the fork carriage is fixed on the cantilever frame or directly fixed on the portal for mounting the forks.If the fork carriage is directly fixed on the portal, the steering device and part of the lifting mechanism will be completely exposed.Therefore, the fork carriage can be installed on the cantilever frame, and the cantilever frame is installed on the portal.The existing cantilever frame has the problems of complex structure and insufficient internal space, which is not conducive to the integration of the device. SUMMARY

[0004] In view of all or part of the deficiencies of the prior art described above, the purpose of the utility model is to provide a cantilever frame for forklift and three-way stacking vehicle, and the provided cantilever frame for forklift has simple structure, high structural strength and sufficient internal space, which is convenient for the installation of other devices.

[0005] In order to achieve the above-mentioned purpose of the utility model, the utility model provides the following technical scheme:

[0006] The utility model provides a cantilever frame for forklift, including first side vertical board and second side vertical board of opposite setting, the middle vertical board and first sealing plate of opposite setting, first side vertical board, first sealing plate, second side vertical board, the middle vertical board are connected together in series and enclose, form first installation space, still include second sealing plate, second sealing plate with first side vertical board, second side vertical board, the middle vertical board are connected and as first installation space bottom surface, first installation hole is reserved between second sealing plate and first sealing plate, is used for exposing the component in first installation space to be connected with external component, the utility model discloses a plurality of structure boards form first installation space, especially utilize second sealing plate as bottom surface, play the role of reinforcing rib, and a plurality of structure boards can be welded together and constitute frame structure, make cantilever frame overall structural strength height, simple structure, through the reasonable setting of first installation hole, especially suitable for installing the component needing partial exposure in first installation space, can be convenient for the component in first installation space and external connection.

[0007] Still include hydraulic drive device, the hydraulic drive device is installed in first installation space, the hydraulic drive device is installed on first sealing plate. Hydraulic drive device is used for realizing the rotation of pallet fork.

[0008] The hydraulic drive device includes a swing cylinder, a plurality of second installation holes are formed in the first sealing plate, one end of the swing cylinder is installed on the second installation hole through bolts, and the other end extends out of the first installation hole. The swing cylinder of the hydraulic drive device can be stably installed in the first installation space through the reasonable setting of the first installation space, and the output end thereof can extend out of the first installation hole to facilitate connection with external components.

[0009] On the other side of the middle vertical plate away from the first installation space, the first side vertical plate, the middle vertical plate and the second side vertical plate are connected in sequence to form a second installation space. The same first side vertical plate, the middle vertical plate and the second side vertical plate provide multiple installation spaces, which is beneficial to the integration of the device.

[0010] Still include lifting module, the lifting module is installed in the second installation space, and the lifting module includes one or more main roller assemblies, one or more side roller assemblies and a chain drive assembly. The main roller assembly and the side roller assembly are used in cooperation with the lifting guide rail of the external component auxiliary jib, and the cantilever frame is pulled by the chain to realize the lifting action of the cantilever frame.

[0011] The first side stand and the second side stand are provided with one or more main roller shaft head mounting holes, the main roller shaft head mounting holes are provided with main roller shaft heads, and the main rollers are mounted on the main roller shaft heads; the first side stand and the second side stand are provided with one or more side roller shaft head mounting grooves, the side roller shaft head mounting grooves are provided with side rollers, and the side rollers are fixed on the first side stand and the second side stand by screws. The cooperation of the main rollers and the side rollers can realize stable lifting of the cantilever frame.

[0012] The chain fixed plate is mounted on the middle stand, and one end of the chain of the chain driving assembly is mounted on the chain fixed plate. The cantilever frame can be conveniently lifted by pulling the chain. The first side stand and the second side stand are provided with first reserved holes at opposite positions, which are used for weight reduction, so that the cantilever frame is lighter and more convenient to use. The middle stand is provided with a second reserved hole, which can be used for wiring of other components, so that the structure is more compact.

[0013] The first side stand and the second side stand are L-shaped structures, one part of the L-shaped structure is used to form the first mounting space, and the other part is used to form the second mounting space; the bridge lower support plate is arranged on the middle stand opposite to the second sealing plate, and one side of the bridge lower support plate is provided with a circular arc-shaped rotating shaft fixing groove. The L-shaped structure can be used for the components mounted in the first mounting space to extend, and the installation position of the bridge lower support plate can be left, and the rotation of the fork frame can be avoided, so that the structure is more compact.

[0014] The cylinder holding assembly includes at least one first cylinder holding frame arranged on the first side stand and at least one second cylinder holding frame arranged on the second side stand opposite to the first cylinder holding frame; the first cylinder holding frame and the second cylinder holding frame each include a mounting piece and a support shaft, the main body part of the support shaft is a concave cylindrical shape, the two ends of the support shaft are rotatably mounted on the mounting piece, the support shaft is located in the second mounting space, and the mounting piece is mounted on the first side stand or the second side stand.

[0015] The first cylinder holder and the second cylinder holder are always in contact with the external oil cylinder cylinder for lifting, the barrel body of the cylinder is generally a cylindrical surface, the body part is a concave cylindrical support shaft attached to the barrel body, and the first cylinder holder and the second cylinder holder can ensure the stability of the oil cylinder during lifting. With the lifting of the cantilever frame, the cylinder holding assembly always clamps the cylinder to prevent the cylinder from shaking left and right, and shares the lateral force, especially when lifting, the effect is obvious. Meanwhile, the support shaft is rotatably installed at both ends of the mounting piece, and when the oil cylinder cylinder is lifted, the main part of the support shaft is in rolling friction with the barrel body of the cylinder. Compared with the non-rotatable support shaft, the rolling friction force is smaller than the sliding friction force, and the friction loss is small. Further, the main part of the support shaft in contact with the cylinder is made of polyurethane or the like, which can reduce the damage to the cylinder compared with the metal material.

[0016] The mounting piece comprises a first mounting plate, a second mounting plate and a third mounting plate, the third mounting plate is located on the side away from the second mounting space of the first side stand or the second side stand, the first mounting plate and the second mounting plate are installed on the third mounting plate and pass through the first side stand or the second side stand to reach the second mounting space, one end of the support shaft is rotatably installed on the first mounting plate, and the other end is rotatably installed on the second mounting plate.

[0017] The first side stand and the second side stand are further provided with at least one fixing piece, the fixing piece is provided with a first fixing hole, the third mounting plate is provided with at least one second fixing hole, further comprising a fixing bolt installed in the second fixing hole, the fixing bolt is installed in the first fixing hole after passing through the first side stand or the second side stand, at least one gasket is further sleeved on the fixing bolt, and the gasket is installed between the third mounting plate and the first side stand or the second side stand. The cylinder holder is installed from the outside of the cantilever frame, when the small roller (support shaft) installed on the cylinder holder is worn, the fixing bolt can be continuously pushed inward (toward the fixing piece) by removing the gasket, the support shaft is pushed toward the cylinder to continue to be attached to the cylinder, so that the lateral stability is ensured. The existence of the gasket means that an adjustment space is reserved in advance, and the gasket is adjusted to compensate for the wear of the support shaft.

[0018] The utility model also provides a three -way stacking car, including the cantilever frame for forklift. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the specific embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, obviously, the drawings described below are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0020] Figure 1 It is a partial structure schematic view of a cantilevered rack for a forklift provided in embodiment 1 (including partial cross section);

[0021] Figure 2 It is a partial side view of a cantilevered rack for a forklift provided in embodiment 1 (including partial cross section);

[0022] Figure 3 It is a partial structure schematic view of a cantilevered rack for a forklift provided in embodiment 1;

[0023] Figure 4 It is a partial top view of a cantilevered rack for a forklift provided in embodiment 1;

[0024] Figure 5 It is a partial structure schematic view of a cantilevered rack for a forklift provided in embodiment 2 (including perspective cylinder holding frame);

[0025] Figure 6 It is a partial structure schematic view of a cantilevered rack for a forklift provided in embodiment 2;

[0026] Figure 7 It is a partial structure schematic view of the first cylinder holding frame or the second cylinder holding frame in embodiment 2.

[0027] Reference signs: 1-first side vertical plate;2-second side vertical plate;21-first reserved hole;3-middle vertical plate;31-second reserved hole;4-first sealing plate;41-second mounting hole;5-second sealing plate;51-first mounting hole;6-chain fixing plate;7-bridge lower support plate;71-fixing groove;8-cylinder holding assembly;82-support shaft;811-first mounting plate;812-second mounting plate;813-third mounting plate;814-fixing member;815-fixing bolt;816-gasket;817-round through hole;101-main roller shaft head mounting hole;102-main roller shaft head;201-side roller shaft head mounting groove. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below. Obviously, the described embodiments are only some of the embodiments of the utility model, not all. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0029] Embodiment 1

[0030] A cantilever frame for a forklift, referring to Figures 1 to 4 , comprising oppositely arranged first side upright plate 1 and second side upright plate 2, oppositely arranged middle upright plate 3 and first sealing plate 4, first side upright plate 1, first sealing plate 4, second side upright plate 2 and middle upright plate 3 are connected end to end to enclose together to form a first installation space; further comprising second sealing plate 5, second sealing plate 5 is connected with first side upright plate 1, second side upright plate 2 and middle upright plate 3 and serves as the bottom surface of the first installation space, first installation hole 51 is reserved between second sealing plate 5 and first sealing plate 4, which is used to expose the components in the first installation space to connect with external components. The first installation hole 51 in the embodiment is composed of one side of the second sealing plate 5 and the first side upright plate 1, the second side upright plate 2 and the first sealing plate 4, and in other embodiments, a through hole can be directly formed on the second sealing plate 5 as the first installation hole 51. The components in the first installation space are hydraulic drive devices (not shown), the hydraulic drive devices are installed in the first installation space, the hydraulic drive devices are installed on the first sealing plate 4, the hydraulic drive devices comprise swing cylinders, a plurality of second installation holes 41 are formed on the first sealing plate 4, two rows of small holes are provided in the embodiment, and each row has four small holes. One end of the swing cylinder is installed on the second installation hole 41 through a bolt, and the other end extends out of the first installation hole 51. The hydraulic drive device is used to realize the rotation of the fork, and in other embodiments, the hydraulic drive device can be omitted.

[0031] First side upright plate 1 and second side upright plate 2 are provided with first reserved holes 21 for weight reduction at opposite positions, and the first reserved holes 21 are parallelogram holes in the embodiment but are not limited thereto. The middle upright plate 3 is provided with second reserved holes 31 for wiring, and the second reserved holes 31 are waist-shaped holes in the embodiment but are not limited thereto.

[0032] The second installation space is formed by the first side plate 1, the neutral plate 3 and the second side plate 2 in sequence on the other side of the neutral plate 3 opposite to the first installation space. The lifting module is installed in the second installation space, and the lifting module comprises one or more main roller assemblies, one or more side roller assemblies and a chain drive assembly. In other embodiments, the lifting module can be omitted. The first side plate 1 and the second side plate 2 are provided with one or more main roller shaft head mounting holes 101, and four main roller shaft head mounting holes 101 are provided in the embodiment. The main roller shaft head 102 is installed in the main roller shaft head mounting hole 101, and the main roller shaft head 102 can be welded on the main roller shaft head mounting hole 101. The main roller (not shown) is installed on the main roller shaft head 102. The first side plate 1 and the second side plate 2 are provided with one or more side roller shaft head mounting grooves 201, and four side roller shaft head mounting grooves 201 are provided in the embodiment. The side roller is installed in the side roller shaft head mounting groove 201, and the side roller is fixed on the first side plate 1 and the second side plate 2 by screws. The chain fixing plate 6 is installed on the neutral plate 3, and one end of the chain (not shown) of the chain drive assembly is installed on the chain fixing plate 6. The cantilever frame is pulled by the chain, and the main roller, the side roller and the auxiliary gantry lifting guide rail (not shown) are matched, the second installation space serves as the running space of the guide rail, and the lifting action of the cantilever frame can be realized.

[0033] The first side plate 1 and the second side plate 2 are L-shaped structures, and one part of the L-shaped structure is used to form the first installation space, and the other part is used to form the second installation space. The bridge lower support plate 7 is arranged on the neutral plate 3 opposite to the second sealing plate 5, and one side of the bridge lower support plate 7 is provided with a circular arc-shaped rotating shaft fixing groove 71. The upper end of the external fork assembly, such as the fork frame, is fixed on the extension end (output end) of the swing cylinder, and the lower end is fixed on a rotating shaft, and the rotating shaft is installed in the circular arc-shaped rotating shaft fixing groove 71. The swing cylinder drives the external fork frame to rotate, and cooperates with the rotating shaft at the bottom of the fork frame to realize the stable steering of the fork frame. The cantilever frame for a forklift provided in the embodiment can be used to cooperate with the lifting system of the hydraulic fork.

[0034] Embodiment 2

[0035] A cantilever frame for a forklift, which is different from the embodiment 1, further comprises a cylinder holding assembly 8. Referring to Figures 5 to 7The cylinder holding assembly 8 comprises at least one first cylinder holding frame arranged on the first side plate 1 and at least one second cylinder holding frame arranged on the second side plate 2 and opposite to the first cylinder holding frame. In the embodiment, there are two first cylinder holding frames arranged on the first side plate 1 from top to bottom and two second cylinder holding frames arranged on the second side plate 2 from top to bottom. The first cylinder holding frame and the second cylinder holding frame each comprise a mounting part and a support shaft 82, the main part of the support shaft 82 is a concave cylinder, and the support shaft 82 is located in the second mounting space. The mounting part comprises a first mounting plate 811, a second mounting plate 812 and a third mounting plate 813, the third mounting plate 813 is located on the side of the first side plate 1 or the second side plate 2 away from the second mounting space, the first mounting plate 811 and the second mounting plate 812 are mounted on the third mounting plate 813 and pass through the first side plate 1 or the second side plate 2 (the circular through hole 817 thereon) to reach the second mounting space, one end of the support shaft 82 is rotatably mounted on the first mounting plate 811 and the other end is rotatably mounted on the second mounting plate 812. At least one fixing part 814 is also mounted on the first side plate 1 and the second side plate 2, in the embodiment, each first cylinder holding frame or second cylinder holding frame comprises two fixing parts 814 arranged symmetrically. The fixing part 814 is provided with a first fixing hole, the third mounting plate 813 is provided with at least one second fixing hole, in the embodiment, there are two second fixing holes. The embodiment also comprises a fixing bolt 815 mounted in the second fixing hole, the fixing bolt 815 passes through the first side plate 1 or the second side plate 2 and is mounted in the first fixing hole. At least one gasket 816 is also sleeved on the fixing bolt 815, the gasket 816 is mounted between the third mounting plate 813 and the first side plate 1 and between the third mounting plate 813 and the second side plate 2. In the embodiment, two gaskets 816 are placed in advance. The support shaft 82 can be made of polyurethane material, the main part of the support shaft 82 is a concave cylinder (similar to a barbell type, the outer wall needs to have a concave curve matched with a cylinder), the support shaft 82 is attached to the cylinder body of the external lifting oil cylinder, the two rotatable support shafts 82 of the first cylinder holding frame and the second cylinder holding frame are respectively in contact with the cylinder, and the stability of the oil cylinder during lifting can be ensured through the first cylinder holding frame and the second cylinder holding frame. When the small roller (support shaft 82) mounted on the cylinder holding frame is worn out, the gasket 816 can be removed and the fixing bolt 815 can be further pushed inward (toward the fixing part 814) to push the support shaft 82 toward the cylinder to continue to attach to the cylinder and ensure lateral stability.

[0036] Embodiment 3

[0037] A three-way stacker truck comprises a cantilever frame for a forklift truck as provided in embodiment 2. It further comprises a portal structure and a fork assembly fixed on the hydraulic drive device and the lower support plate 7 of the bridge, and the lifting guide rails of the portal structure are installed in cooperation with the main rollers, side rollers and chains in the second mounting space.

[0038] The above description of the embodiments is only used to help understand the method and core idea of the present application. It should be pointed out that, for ordinary skilled in the art, without departing from the principles of the present application, the present application can be improved and modified in several ways, and these improvements and modifications also fall within the scope of protection of the present application.

Claims

1. A cantilevered carriage for a fork lift truck, characterized by, The utility model relates to a kind of hydraulic drive device and lifting module, including oppositely arranged first side stand (1) and second side stand (2), oppositely arranged middle stand (3) and first sealing plate (4), the first side stand (1), first sealing plate (4), second side stand (2), middle stand (3) are connected together in head-to-tail, form first installation space;Second sealing plate (5) is connected with the first side stand (1), second side stand (2), middle stand (3) and as the bottom surface of the first installation space, first installation hole (51) is reserved between the second sealing plate (5) and the first sealing plate (4), for the component in the first installation space is exposed to be connected with external component.

2. The cantilevered boom of claim 1, wherein, It further includes a hydraulic drive device, which is installed in the first installation space, and the hydraulic drive device is installed on the first sealing plate (4).

3. The cantilevered boom of claim 2, wherein, The hydraulic drive device includes a swing cylinder, a plurality of second installation holes (41) are formed in the first sealing plate (4), one end of the swing cylinder is installed on the second installation hole (41) by bolts, and the other end extends out of the first installation hole (51).

4. The cantilevered boom of claim 1, wherein, On the side opposite to the first installation space of the middle stand (3), the first side stand (1), the middle stand (3) and the second side stand (2) are connected in sequence to form a second installation space; the lifting module is installed in the second installation space, and the lifting module includes one or more main roller assemblies, one or more side roller assemblies and a chain drive assembly.

5. The cantilevered boom of claim 4, wherein, One or more main roller shaft head installation holes (101) are formed in the first side stand (1) and the second side stand (2), main roller shaft heads (102) are installed in the main roller shaft head installation holes (101), and the main rollers are installed on the main roller shaft heads (102); one or more side roller shaft head installation grooves (201) are formed in the first side stand (1) and the second side stand (2), side rollers are installed in the side roller shaft head installation grooves (201), and the side rollers are fixed on the first side stand (1) and the second side stand (2) by screws.

6. The cantilevered boom of claim 4, wherein, The chain fixing plate (6) is installed on the middle stand (3), one end of the chain of the chain drive assembly is installed on the chain fixing plate (6); first reserved holes (21) are formed in opposite positions of the first side stand (1) and the second side stand (2); second reserved holes (31) are formed in the middle stand (3); the first side stand (1) and the second side stand (2) are L-shaped structures, part of the L-shaped structures is used to form the first installation space, and the other part is used to form the second installation space; the bridge lower support plate (7) is arranged opposite to the second sealing plate (5) on the middle stand (3), and an arc-shaped rotating shaft fixing groove (71) is arranged on one side of the bridge lower support plate (7).

7. The cantilevered boom of claim 4, wherein, Also included is a cylinder holding assembly (8) comprising at least one first cylinder holding frame arranged on the first side plate (1) and at least one second cylinder holding frame arranged on the second side plate (2) opposite the first cylinder holding frame; the first cylinder holding frame and the second cylinder holding frame each comprise a mounting member and a support shaft (82), the main body portion of the support shaft (82) is concave cylindrical, both ends of the support shaft (82) are rotatably mounted on the mounting member, the support shaft (82) is located in the second mounting space, and the mounting member is mounted on the first side plate (1) or the second side plate (2).

8. The cantilevered boom of claim 7, wherein, The mounting member comprises a first mounting plate (811), a second mounting plate (812) and a third mounting plate (813), the third mounting plate (813) is located on the side of the first side plate (1) or the second side plate (2) away from the second mounting space, the first mounting plate (811) and the second mounting plate (812) are mounted on the third mounting plate (813) and pass through the first side plate (1) or the second side plate (2) to reach the second mounting space, one end of the support shaft (82) is rotatably mounted on the first mounting plate (811), and the other end is rotatably mounted on the second mounting plate (812).

9. The cantilevered boom of claim 8, wherein, At least one fixing member (814) is also mounted on the first side plate (1) and the second side plate (2), the fixing member (814) is provided with a first fixing hole, the third mounting plate (813) is provided with at least one second fixing hole, a fixing bolt (815) is mounted in the second fixing hole, the fixing bolt (815) passes through the first side plate (1) or the second side plate (2) and is mounted in the first fixing hole, at least one gasket (816) is sleeved on the fixing bolt (815), and the gasket (816) is mounted between the third mounting plate (813) and the first side plate (1) or the second side plate (2).

10. A three-way stacker characterized by A cantilever frame for a forklift truck comprising any one of claims 1-9.

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