Narrow-channel omni-directional reach forklift

Abstract

The invention relates to the technical field of forward-moving type forklifts, in particular to a narrow-channel omnidirectional forward-moving type forklift which comprises a frame system assembly, the front side of the frame system assembly is movably connected with a portal system assembly, the front side of the portal system assembly is movably connected with a pallet fork assembly, the bottom of the pallet fork assembly is provided with a connecting rod assembly, and the bottom of the connecting rod assembly is provided with a connecting rod. A driving assembly is arranged between the frame system and the portal system assembly; the portal frame system assembly comprises an outer portal frame, and the outer portal frame is composed of two sets of steel channels and a plate body fixed to the rear sides of the steel channels; the pallet fork assembly comprises two symmetrically-distributed fork arms and a bearing plate fixed to the rear ends of the fork arms, the two sides of the bearing plate are rotationally connected with pallet fork rolling wheels, and the pallet fork rolling wheels are located in grooves in the channel steel to roll. The forklift can be customized according to the width of a channel, and the length of a pallet fork can reach the maximum value of-500mm of the width of the channel as long as the width of the forklift body is smaller than 200mm of the safety distance of the channel; and the use of the forklift for narrow-channel and large-size objects is effectively realized.

Description

Technical Field

[0001] This invention relates to the field of reach truck technology, and in particular to a narrow-aisle fully reach truck. Background Technology

[0002] A reach truck has a push carriage that can move horizontally along the longitudinal direction of the vehicle body by means of a push drive. It is known that a push distance measuring device is provided on the reach truck, by means of which the push distance and / or push position of the push carriage can be determined;

[0003] Currently, when ordinary forklifts are used to pick up large items in narrow aisles, they often cannot pick up the items properly because the aisle width is too narrow and the forklift's turning radius is too large. To address this situation, we have adopted an all-directional drive system for the entire vehicle, added a secondary carriage and a fork assembly with lifting function to the mast system, thereby solving the problem of picking up items in narrow aisles. Summary of the Invention

[0004] The purpose of this invention is to provide a narrow-aisle fully forward-reaching forklift to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a narrow aisle fully forward-reaching forklift, including a frame system assembly, a mast system assembly movably connected to the front side of the frame system assembly, a fork assembly movably connected to the front side of the mast system assembly, a connecting rod assembly disposed at the bottom of the fork assembly, and a drive assembly disposed between the frame system and the mast system assembly;

[0006] The gantry system assembly includes an outer gantry, which is composed of two sets of channel steel and a plate fixed to the rear side of the channel steel.

[0007] The fork assembly consists of two symmetrically distributed fork arms and a support plate fixed to the rear end of the fork arms. Fork rollers are rotatably connected to both sides of the support plate, and the fork rollers roll in the grooves of the channel steel.

[0008] Preferably, the drive assembly includes a gear motor assembly fixed to the rear side of the outer mast and a gear fixed to the output shaft of the gear motor assembly, and a rack that meshes with the gear is fixed to the front side of the frame system at a position corresponding to the gear.

[0009] Preferably, the lower side of the rack has a body channel steel of the frame system assembly, and an outer mast roller is rotatably connected inside the body channel steel. The outer mast roller is rotatably connected to the outer mast.

[0010] Preferably, the linkage assembly includes a fork lifting screw motor fixed on the outer mast and located on one side of the gear motor assembly, and a support box fixed to the bottom front side of the outer mast. A reciprocating screw is rotatably connected inside the support box, and one end of the reciprocating screw is connected to the output end of the fork lifting screw motor.

[0011] Preferably, two sets of connecting rods are symmetrically distributed between the top of the support box and the fork arm of the fork assembly. Each set of connecting rods includes two cross-distributed connecting rods, which are rotatably connected by a pin. The upper ends of the two connecting rods are hinged to the fork assembly.

[0012] Preferably, a second support link is hinged to the bottom of one of the connecting rods, the top of the second support link is hinged to the fork assembly, and a first support link is hinged to the bottom of the second support link. The other end of the first support link is fixed to the support wheel assembly.

[0013] Preferably, two of the two sets of connecting rods have sliding blocks hinged to their bottoms. The sliding blocks are slidably connected to the support box and are also connected to the reciprocating lead screw for helical transmission.

[0014] Preferably, the support wheel assembly includes a shaft rotatably connected to the support box, and two support arms are fixed to the outside of the shaft, with a wheel body rotatably connected between the two support arms.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] This vehicle can be customized according to the aisle width. As long as the vehicle body width is less than the aisle width by 200mm (safe distance), the fork length can reach the maximum value of aisle width - 500mm; effectively solving the problem of using forklifts for narrow aisles and large items. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is an overall structural view of the present invention;

[0019] Figure 2 This is a structural view of the gantry system assembly of the present invention;

[0020] Figure 3 For the present invention Figure 1 Enlarged view of point A in the middle;

[0021] Figure 4 This is a partial view of the gantry system assembly of the present invention.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Frame system assembly; 2. Mast system assembly; 3. Outer mast rollers; 4. Body channel steel; 5. Rack and pinion; 6. Gear motor assembly; 7. Fork assembly; 8. Fork lifting screw motor; 9. Linkage assembly; 10. Support wheel assembly; 11. Support wheel link one; 12. Support wheel link two. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Please see Figures 1 to 4 The present invention provides a technical solution:

[0026] A narrow aisle fully forward-reaching forklift includes a frame system assembly 1, a mast system assembly 2 movably connected to the front of the frame system assembly 1, a fork assembly 7 movably connected to the front of the mast system assembly 2, a connecting rod assembly 9 disposed at the bottom of the fork assembly 7, and a drive assembly disposed between the frame system and the mast system assembly 2.

[0027] The gantry system assembly 2 includes an outer gantry, which is composed of two sets of channel steel and a plate fixed to the rear side of the channel steel.

[0028] The fork assembly 7 consists of two symmetrically distributed fork arms and a support plate fixed to the rear end of the fork arms. Fork rollers are rotatably connected to both sides of the support plate, and the fork rollers roll within the grooves of the channel steel. The rolling of the fork rollers inside the channel steel ensures the smooth movement of the fork assembly 7.

[0029] Specifically, the drive assembly includes a gear motor assembly 6 fixed to the rear side of the outer mast and a gear fixed to the output shaft of the gear motor assembly 6. A rack 5, meshing with the gear, is fixed to the front side of the frame system at a position corresponding to the gear. The gear motor drives the gear to rotate. Since the gear meshes with the rack 5, it can drive the outer mast in the mast system assembly 2 to move back and forth inside the frame system assembly 1, cooperating with the fork assembly 7 to pick up the cargo from the bottom.

[0030] Specifically, the lower side of the rack 5 has the body channel steel 4 of the frame system assembly 1, and the outer mast roller 3 is rolled inside the body channel steel 4. The outer mast roller 3 is rotatably connected to the outer mast. The rolling displacement of the mast roller inside the body channel steel 4 can ensure the stability of the outer mast movement.

[0031] Specifically, the linkage assembly 9 includes a forklift screw motor 8 fixed on the outer mast and located on one side of the gear motor assembly 6, and a support box fixed to the bottom front side of the outer mast. A reciprocating screw is rotatably connected inside the support box, and one end of the reciprocating screw is connected to the output end of the forklift screw motor 8. By rotating the reciprocating screw driven by the forklift screw motor 8, the lifting and lowering of the top fork assembly 7 can be achieved through the linkage assembly.

[0032] Specifically, two sets of connecting rods are symmetrically distributed between the top of the support box and the fork arm of the fork assembly 7. Each set of connecting rods includes two cross-distributed connecting rods, which are rotatably connected by a pin. The upper ends of the two connecting rods are hinged to the fork assembly 7.

[0033] Specifically, one of the connecting rods has a support connecting rod two hinged to its bottom, the top of the support connecting rod two is hinged to the fork assembly 7, and the bottom is hinged to a support connecting rod one. The other end of the support connecting rod one is fixed to the support wheel assembly 10.

[0034] Specifically, two of the two sets of connecting rods have sliding blocks hinged to their bottoms. The sliding blocks are slidably connected to the support box and are also connected to the reciprocating lead screw for helical transmission.

[0035] Specifically, the support wheel assembly 10 includes a shaft rotatably connected to the support box, and two support arms are fixed to the outside of the shaft. A wheel is rotatably connected between the two support arms. During the operation of the connecting rod assembly 9, the bottom of the connecting rod deflects the second support connecting rod, thereby driving the first support connecting rod to deflect, which in turn drives the support arm to deflect inside the support box through the shaft, thereby realizing the lifting and lowering of the wheel.

[0036] Working principle: When the forklift reaches the item picking position, it stops, the mast system assembly 7 moves forward, the support wheel assembly 10 releases its linkage, and the support wheel assembly extends to contact the ground. After the forks pick up the item, the fork lifting screw motor 8 starts running, and the linkage assembly 9 supports the fork assembly 7 to lift the item until the bottom of the item is higher than the height of the frame system assembly 1 on both sides of the vehicle body. The gear motor assembly 6 meshes with the rack 5, the mast system assembly moves backward to the rearmost position, and the support wheel assembly 10 retracts through the linkage and the frame system assembly slider. The motor of the fork lifting screw motor assembly 8 starts running, driving the linkage assembly 9 (scissor differential structure) to lower the fork assembly 7. The item follows and falls onto the frame system assembly support plate. The forklift can then drive normally until it reaches the item placement area.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A narrow aisle fully reachable forklift, comprising a chassis system assembly (1), characterized in that: The front side of the frame system assembly (1) is movably connected to the mast system assembly (2), the front side of the mast system assembly (2) is movably connected to the fork assembly (7), the bottom of the fork assembly (7) is provided with a connecting rod assembly (9), and a drive assembly is provided between the frame system and the mast system assembly (2). The gantry system assembly (2) includes an outer gantry, which is composed of two sets of channel steel and a plate fixed to the rear side of the channel steel; The fork assembly (7) consists of two symmetrically distributed fork arms and a support plate fixed to the rear end of the fork arms. Fork rollers are rotatably connected to both sides of the support plate, and the fork rollers roll in the groove of the channel steel.

2. The narrow aisle fully reach forklift according to claim 1, characterized in that: The drive assembly includes a gear motor assembly (6) fixed to the rear side of the outer mast and a gear fixed to the output shaft of the gear motor assembly (6). A rack (5) that meshes with the gear is fixed to the front side of the frame system at a position corresponding to the gear.

3. A narrow-aisle fully forward-reaching forklift according to claim 2, characterized in that: The rack (5) has a car body channel steel (4) in the frame system assembly (1) distributed on its lower side. The car body channel steel (4) is connected to an outer mast roller (3) which is rotatably connected to the outer mast.

4. A narrow aisle fully reach forklift according to claim 3, characterized in that: The linkage assembly (9) includes a fork lifting screw motor (8) fixed on the outer mast and located on one side of the gear motor assembly (6), and a support box fixed to the bottom front side of the outer mast. A reciprocating screw is rotatably connected inside the support box, and one end of the reciprocating screw is connected to the output end of the fork lifting screw motor (8).

5. A narrow-aisle fully forward-reaching forklift according to claim 4, characterized in that: Two sets of connecting rods are symmetrically distributed between the top of the support box and the fork arm of the fork assembly (7). Each set of connecting rods includes two cross-distributed connecting rods, which are rotatably connected by a pin. The upper ends of the two connecting rods are hinged to the fork assembly (7).

6. A narrow-aisle fully forward-reaching forklift according to claim 5, characterized in that: One of the connecting rods has a support connecting rod 2 hinged to its bottom, the top of the support connecting rod 2 is hinged to the fork assembly (7), and the bottom is hinged to a support connecting rod 1. The other end of the support connecting rod 1 is fixed to the support wheel assembly (10).

7. A narrow-aisle fully forward-reaching forklift according to claim 6, characterized in that: Two of the two sets of connecting rods have sliding blocks hinged to their bottoms. The sliding blocks are slidably connected to the support box and are also connected to the reciprocating lead screw for helical transmission.

8. A narrow-aisle fully forward-reaching forklift according to claim 7, characterized in that: The support wheel assembly (10) includes a shaft that is rotatably connected to the support box, and two support arms are fixed to the outside of the shaft, with a wheel body rotatably connected between the two support arms.

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