Forklift frame structure of novel lifting motor installation position

Abstract

The utility model belongs to the technical field of forklift assembly, and particularly discloses a forklift frame structure of a novel lifting motor mounting position, which is characterized in that a mounting plate is fixed on a rear frame seaming through welding, and then is welded on a frame seaming through the rear frame seaming to form a whole frame; the lifting motor and the gear pump are fixed on the mounting plate, the space utilization of the frame is more reasonable, and as the mounting position of the lifting motor is kept away from the counterweight, when the motor of the storage battery forklift is checked and maintained, the disassembly and lifting of the motor cannot interfere with the counterweight, and the maintenance and replacement can be completed only by loosening a fixing bolt of the motor; the gravity center moves backwards, so that the self weight is reduced, and the working time is longer on the premise of the same battery capacity and working environment; one end of the oil inlet pipe is connected to the gear pump, the other end of the oil inlet pipe is connected to the hydraulic oil tank cover plate, and pipeline arrangement based on the hydraulic oil tank cover plate is simpler and more attractive.

Description

Technical Field

[0001] The utility model relates to the technical field of forklift assembly, in particular to a forklift frame structure with a novel lifting motor installation position. Background Art

[0002] Forklifts are industrial handling vehicles, which refer to various wheeled handling vehicles for loading and unloading, stacking and short-distance transportation of palletized goods. They are widely used in the field of industrial transportation. However, due to many factors such as the working environment, service life, and driver's operating habits, forklifts need to be maintained, inspected, and even repaired after work is completed. How to facilitate the maintenance and repair of vehicles and improve production efficiency is particularly important.

[0003] As the country's requirements for the environment become increasingly stringent, battery counterbalanced forklifts are becoming more and more popular due to their low noise, environmental protection and energy saving features. However, battery forklifts need to use motors to power the entire vehicle, so the inspection and maintenance of the motors are particularly important. The compact space of the traditional frame is very inconvenient for maintenance and repair.

[0004] Traditional forklift frames usually fix the lifting motor under the counterweight or above the hydraulic oil tank, resulting in too little space, which is not conducive to the inspection, disassembly and maintenance of the motor and the layout of the hydraulic pipeline.

[0005] In view of this, the utility model proposes a forklift frame structure with a novel lifting motor installation position. Utility Model Content

[0006] The purpose of the utility model is to provide a forklift frame structure with a new lifting motor installation position, which has a simple structure and better space utilization. At the same time, the center of gravity is moved backward to reduce the weight of the whole vehicle, and the maintenance and inspection of the battery counterbalanced forklift motor are convenient, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a novel forklift frame structure at the installation position of the lifting motor, including a frame welding of a forklift frame carrier and a rear frame welding;

[0008] A rear frame weld, wherein the rear frame weld is welded at a middle position of the tail of the frame weld;

[0009] A mounting plate, the mounting plate is fixed at the middle position of the rear frame welding, a lifting motor and a gear pump are mounted on the mounting plate, the lifting motor and the gear pump are connected to each other through splines and bolts, and the gear pump is connected to the oil outlet pipe and the oil inlet pipe through a transition joint;

[0010] The other end of the oil outlet pipe is connected to a multi-way valve, and the other end of the oil inlet pipe is connected to a hydraulic oil tank cover plate. The wiring layout is fixed on the hydraulic oil tank based on the hydraulic oil tank cover plate, and the hydraulic oil tank is welded to the frame.

[0011] As a preferred technical solution of the utility model, the mounting plate includes:

[0012] A motor carrier, wherein the fixed end of the motor carrier is welded to the welded middle cross beam of the rear frame, and the free end of the motor carrier is movably connected to an external component;

[0013] The diagonal support carrier is symmetrically arranged on both sides of the fixed end of the motor carrier, and extends from the fixed end of the motor carrier to the side cross beams on both sides of the frame welded together.

[0014] As a preferred technical solution of the utility model, the diagonal support carrier includes a first fixed section connected to the fixed end of the motor carrier, a second fixed section connected to the welded side cross beam of the frame, and an inclined fixed section connecting the first fixed section and the second fixed section.

[0015] As a preferred technical solution of the present utility model, the first fixing section, the inclined fixing section and the second fixing section are integrally formed.

[0016] As a preferred technical solution of the utility model, the inclined fixed section and the connection between the first fixed section and the second fixed section are all arc-shaped.

[0017] As a preferred technical solution of the present utility model, the first fixing section and the second fixing section are plane welded.

[0018] As a preferred technical solution of the utility model, the mounting plate and the hydraulic oil tank are preset with fixed threaded holes.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] The utility model makes more reasonable use of the frame space, and the pipeline layout is simpler and more beautiful; the center of gravity is moved backward, which reduces its own weight, and at the same battery capacity and working environment, the working time is longer. Because the installation position of the lifting motor avoids the counterweight, when the battery forklift motor is inspected and repaired, the motor disassembly and lifting will not interfere with the counterweight. Only the fixing bolts of the motor need to be loosened to complete the inspection and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the assembly of the frame, motor and gear pump of the utility model;

[0022] Figure 2It is a three-dimensional structural schematic diagram of the assembly of the frame, the motor and the gear pump of the utility model;

[0023] Figure 3 It is a schematic diagram of the frame structure of the utility model.

[0024] In the figure: 1. Frame welding; 2. Lifting motor; 3. Gear pump; 4. Oil outlet pipe; 5. Oil inlet pipe; 6. Mounting plate; 601. Motor carrier; 602. Diagonal support carrier; 6021. First fixed section; 6022. Inclined fixed section; 6023. Second fixed section; 7. Rear frame welding; 8. Hydraulic oil tank cover; 9. Hydraulic oil tank. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Example 1

[0029] like Figure 1-3 As shown, the utility model provides a technical solution: a forklift frame structure with a novel lifting motor installation position, including a frame weld 1 of a forklift frame carrier and a rear frame weld 7,

[0030] The rear frame weld 7 is welded to the middle position of the tail of the frame weld 1, so that the entire forklift frame structure is stably fixed and plays a supporting role; the mounting plate 6 includes:

[0031] A motor carrier 601, wherein the fixed end of the motor carrier 601 is welded to the middle cross beam of the rear frame weld 7, and the free end of the motor carrier 601 is movably connected to an external component;

[0032] The diagonal support carrier 602 is symmetrically arranged on both sides of the fixed end of the motor carrier 601, and extends from the fixed end of the motor carrier 601 to the side cross beams on both sides of the frame weld 1;

[0033] The diagonal support carrier 602 includes a first fixed section 6021 connected to the fixed end of the motor carrier 601, a second fixed section 6023 connected to the side cross beam of the frame welding 1, and an inclined fixed section 6022 connecting the first fixed section 6021 and the second fixed section 6023. The connection between the inclined fixed section 6022 and the first fixed section 6021 and the second fixed section 6023 is an arc-shaped setting, so that the first fixed section 6021, the inclined fixed section 6022 and the second fixed section 6023 are integrally formed.

[0034] Specifically, the side cross beam of the frame weld 1 is defined as a horizontal setting, and the second fixed section 6023 is set as a horizontal fixed section, which is horizontally welded to the side cross beam of the frame weld 1; the first fixed section 6021 can be horizontally welded to the side of the fixed end of the motor carrier 601, or vertically welded to the front section of the fixed end of the motor carrier 601, that is, at the vertical edge close to the side of the fixed end of the motor carrier 601, that is, the first fixed section 6021 and the second fixed section 6023 are plane welded when welded.

[0035] The mounting plate 6 is fixed at the middle position of the rear frame weld 7. The lifting motor 2 and the gear pump 3 are installed on the mounting plate 6. The reason for setting the lifting motor 2 and the gear pump 3 in the middle position is that the lifting motor 2 and the gear pump 3 have a certain weight. In the prior art, the lifting motor 2 and the gear pump 3 are both set on one side, and the other side needs to be configured with a corresponding counterweight block to achieve the purpose of balance. The lifting motor 2 is added at the bottom of the gear pump 3 to realize the lifting and lowering of the gear pump 3, thereby achieving the purpose of convenient maintenance;

[0036] The top of the mounting plate 6 is fixedly connected to the lifting motor 2 and the gear pump 3 by bolts and gaskets, and the frame space is more reasonably utilized. Since the installation position of the lifting motor 2 avoids the counterweight, when the battery forklift motor is inspected and repaired, the motor is disassembled and lifted without interfering with the counterweight. Only the fixing bolts of the motor need to be loosened to complete the inspection and replacement; the lifting motor 2 and the gear pump 3 are connected to each other by splines and bolts, and the gear pump 3 moves up and down under the action of the lifting motor 2. The gear pump 3 is connected to the oil outlet pipe 4 and the oil inlet pipe 5 through a transition joint;

[0037] The other end of the oil outlet pipe 4 is connected to a multi-way valve. The function of the multi-way valve is:

[0038] The other end of the oil inlet pipe 5 is connected to the hydraulic oil tank cover 8, and then the hydraulic oil tank cover 8 is used to arrange the wiring and fix it on the hydraulic oil tank 9. The hydraulic oil tank 9 is welded to the frame weld 1. The pipeline layout based on the hydraulic oil tank cover is simpler and more beautiful; it is then fixed on the frame weld, the center of gravity is moved backward, and its own weight is reduced. At the same time, under the premise of the same battery capacity and working environment, the working time is made longer.

[0039] It is further explained that the frame weld 1 is formed into a complete frame structure that meets the strength, deformation and tensile stress resistance by welding, and the mounting plate 6, rear frame weld 7 and hydraulic oil tank 9 are all cut from Q355B hot-rolled steel plate. The mounting plate 6 and hydraulic oil tank 9 are preset with fixed threaded holes.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new forklift frame structure with a lifting motor installation position, characterized in that: It includes a frame weld (1) of a forklift frame carrier and a rear frame weld (7); A rear frame weld (7), wherein the rear frame weld (7) is welded at a middle position of the rear end of the frame weld (1); A mounting plate (6), the mounting plate (6) being fixed at the middle position of the rear frame weld (7), a lifting motor (2) and a gear pump (3) being mounted on the mounting plate (6), the lifting motor (2) and the gear pump (3) being connected to each other via splines and bolts, and the gear pump (3) being connected to an oil outlet pipe (4) and an oil inlet pipe (5) via a transition joint; The other end of the oil outlet pipe (4) is connected to a multi-way valve, and the other end of the oil inlet pipe (5) is connected to a hydraulic oil tank cover plate (8). The wiring layout is performed based on the hydraulic oil tank cover plate (8) and fixed to a hydraulic oil tank (9). The hydraulic oil tank (9) is welded to the frame weld (1).

2. According to the forklift frame structure of the novel lifting motor installation position as claimed in claim 1, it is characterized by: The mounting plate (6) comprises: A motor carrier (601), wherein a fixed end of the motor carrier (601) is welded to the middle cross beam of the rear frame weld (7), and a free end of the motor carrier (601) is movably connected to an external component; The diagonal support carrier (602) is symmetrically arranged on both sides of the fixed end of the motor carrier (601), and extends from the fixed end of the motor carrier (601) to the side cross beams on both sides of the frame weld (1).

3. The forklift frame structure of the novel lifting motor installation position according to claim 2 is characterized in that: The diagonal support carrier (602) comprises a first fixed section (6021) connected to the fixed end of the motor carrier (601), a second fixed section (6023) connected to the side cross beam of the frame weld (1), and an inclined fixed section (6022) connecting the first fixed section (6021) and the second fixed section (6023).

4. The forklift frame structure of the novel lifting motor installation position according to claim 3 is characterized in that: The first fixing section (6021), the inclined fixing section (6022) and the second fixing section (6023) are integrally formed.

5. The forklift frame structure of the novel lifting motor installation position according to claim 4 is characterized in that: The connection between the inclined fixing section (6022) and the first fixing section (6021) and the second fixing section (6023) is arc-shaped.

6. The forklift frame structure of the novel lifting motor installation position according to claim 3 is characterized by: The first fixing section (6021) and the second fixing section (6023) are plane welded.

7. The forklift frame structure of the novel lifting motor installation position according to claim 1 is characterized in that: The mounting plate (6) and the hydraulic oil tank (9) are pre-set with fixed threaded holes.

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