All-terrain forklift front axle structure

Abstract

The utility model discloses an off -road fork truck front axle structure belongs to engineering vehicle chassis field, including front axle shell, main reducer, differential mechanism, half axle and wheel edge reducer, main reducer and differential mechanism are integrated in an independent central drive mechanism, and this central drive mechanism sets up at the top inside the front axle shell, the front axle shell and central drive mechanism are connected through the heat abstractor, and the top of front axle shell is provided with the mounting seat. This off -road fork truck front axle structure, through setting up central drive mechanism and heat abstractor, make this front axle mechanism when using, through the high -placed design of central drive mechanism, make the lowest point of front axle body ground clearance increase greatly, effectively adapt complex road surface such as pit, rock, if central drive mechanism breaks down, only need to dismantle the connecting bolt to be able to hang down the whole mechanism and maintain or replace, need not to dismantle the whole front axle assembly of cumbersome, greatly reduced maintenance time and cost.

Description

Technical Field

[0001] This utility model relates to the field of engineering vehicle chassis technology, specifically a front axle structure for an off-road forklift. Background Technology

[0002] As an important material handling equipment, off-road forklifts are widely used in complex road conditions such as ports, mines, and construction sites. Compared with ordinary forklifts, off-road forklifts need to have higher passability, stronger load-bearing capacity, and better shock absorption performance.

[0003] Existing off-road forklifts mostly use integral cast or welded axle housings for their front axles. These structures are bulky and have a fixed ground clearance. When encountering extremely uneven road surfaces, the integral axle structure is prone to interference when the wheels bounce. The limited ground clearance makes it easy for the axle to bottom out. Furthermore, key components such as the main reducer and differential are integrated inside the axle housing. Once a failure occurs, repair and replacement are extremely complicated, requiring the entire front axle to be removed, which is time-consuming and labor-intensive.

[0004] Therefore, this utility model provides a front axle structure for off-road forklifts to solve the above problems. Utility Model Content

[0005] (a) Technical problems to be solved This utility model provides a front axle structure for an off-road forklift, aiming to solve the problems mentioned in the background art.

[0006] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a front axle structure for an off-road forklift, comprising a front axle housing, a main reducer, a differential, half shafts, and wheel-side reducers. The main reducer and the differential are integrated into an independent central drive mechanism, which is located at the top inside the front axle housing. The front axle housing and the central drive mechanism are connected by a heat dissipation mechanism. A mounting base is provided at the top of the front axle housing, and the front axle housing is connected to the mounting base through a mounting mechanism. The heat dissipation mechanism includes a heat sink, which is fixedly connected to the inside of the front axle housing. The inside of the heat sink is fixedly connected to the outside of the central drive mechanism. First heat sinks are provided around the heat sink, and multiple second heat sinks are provided on the outside of the front axle housing. The first heat sinks and the second heat sinks are connected by multiple metal heat-conducting strips.

[0007] As a preferred technical solution of this application, the installation mechanism includes a fixed seat, and there are two fixed seats. The two fixed seats are respectively fixedly connected to both sides of the front axle housing. Sleeves are fixedly connected to both ends of the inner wall of the fixed seat. Moving rods are slidably connected to the inner wall of the sleeves. First wedge blocks are fixedly connected to the opposite ends of the two moving rods.

[0008] As a preferred technical solution of this application, a second wedge block is provided in the middle of the two first wedge blocks, and the shapes of the first wedge block and the second wedge block are adapted to each other. A first elastic telescopic rod is provided on one side of the second wedge block, and the other end of the first elastic telescopic rod is fixedly connected to the mounting base.

[0009] As a preferred technical solution of this application, a second elastic telescopic rod is fixedly connected to both ends of the fixed base. One end of the movable rod passes through the fixed base and extends to the outside of the fixed base. A limiting hole is opened on the outer wall of the movable rod. The shape of the limiting hole is adapted to the shape of the second elastic telescopic rod. The second elastic telescopic rod is inserted into the movable rod through the limiting hole.

[0010] As a preferred technical solution of this application, a spring is provided at one end of the first wedge block, and the other end of the spring is connected to the corresponding end of the sleeve.

[0011] As a preferred technical solution of this application, the two sides of the front axle housing are respectively connected to the opposite ends of the two half shafts, and the front axle housing is connected to the wheel-side reducer through the half shafts.

[0012] (III) Beneficial Effects The front axle structure of this off-road forklift features a central drive mechanism and a cooling system. This design significantly increases the ground clearance of the lowest point of the front axle by elevating the central drive mechanism, effectively adapting to complex road surfaces such as potholes and rocks. If the central drive mechanism malfunctions, the entire mechanism can be lifted for repair or replacement simply by removing the connecting bolts, eliminating the need to disassemble the entire heavy front axle assembly. This greatly reduces repair time and costs. Simultaneously, the design provides efficient cooling for the central drive mechanism, preventing overheating and damage to its internal components. Attached Figure Description

[0013] Figure 1 This is a structural schematic diagram of a front axle structure for an off-road forklift. Figure 2 This is a three-dimensional structural diagram of the half-shaft in the front axle structure of an off-road forklift. Figure 3 This is a schematic diagram of the overall structure of the heat dissipation mechanism in the front axle structure of an off-road forklift. Figure 4 This is a schematic diagram of the distribution of mounting mechanisms in the front axle structure of an off-road forklift.

[0014] In the picture: 1. Front axle housing; 2. Half shaft; 3. Wheel-side reducer; 4. Central drive mechanism; 5. Heat dissipation mechanism; 501. Heat sink; 502. First heat sink; 503. Second heat sink; 504. Metal heat-conducting strip; 6. Mounting base; 7. Mounting mechanism; 701. Fixed base; 702. Sleeve; 703. Moving rod; 704. First wedge block; 705. Second wedge block; 706. First elastic telescopic rod; 8. Second elastic telescopic rod; 9. Limiting hole; 10. Spring. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] like Figure 1-4 As shown, this utility model provides a front axle structure for an off-road forklift, including a front axle housing 1, a main reducer, a differential, a half shaft 2, and a wheel-side reducer 3. The main reducer and the differential are integrated into an independent central drive mechanism 4, which is located at the top inside the front axle housing 1. The front axle housing 1 and the central drive mechanism 4 are connected by a heat dissipation mechanism 5. A mounting seat 6 is provided on the top of the front axle housing 1, and the front axle housing 1 is connected to the mounting seat 6 through a mounting mechanism 7. The heat dissipation mechanism 5 includes a heat sink 501, which is fixedly connected to the inside of the front axle housing 1. The inside of the heat sink 501 is fixedly connected to the outside of the central drive mechanism 4. First heat sinks 502 are provided around the heat sink 501, and multiple second heat sinks 503 are provided on the outside of the front axle housing 1. The first heat sinks 502 and the second heat sinks 503 are connected by multiple metal heat-conducting strips 504. By setting the central drive mechanism 4 and the heat dissipation mechanism 5, the ground clearance of the lowest point of the front axle body is greatly increased by the high-position design of the central drive mechanism 4, which can effectively adapt to complex road surfaces such as potholes and rocks. If the central drive mechanism 4 fails, the entire mechanism can be lifted down for repair or replacement simply by removing the connecting bolts, without having to disassemble the entire heavy front axle assembly, which greatly reduces maintenance time and cost. At the same time, the central drive mechanism 4 is efficiently cooled to prevent overheating and damage to its internal components.

[0017] The mounting mechanism 7 includes two fixed seats 701. The two fixed seats 701 are fixedly connected to both sides of the front axle housing 1. Both ends of the inner wall of the fixed seat 701 are fixedly connected to sleeves 702. The inner wall of the sleeves 702 is slidably connected to moving rods 703. The opposite ends of the two moving rods 703 are fixedly connected to first wedge blocks 704. By setting the sleeves 702, the moving rods 703 can be guided and limited, avoiding the situation where the two first wedge blocks 704 are offset during the movement, which would prevent them from engaging with the second wedge blocks 705.

[0018] A second wedge block 705 is provided in the middle of the two first wedge blocks 704, and the shapes of the first wedge blocks 704 and the second wedge blocks 705 are adapted to each other. A first elastic telescopic rod 706 is provided on one side of the second wedge block 705, and the other end of the first elastic telescopic rod 706 is fixedly connected to the mounting base 6. By setting the mounting mechanism 7, the front axle assembly can be easily and quickly installed and disassembled from the mounting base 6 during use, thereby facilitating the disassembly and maintenance of the front axle assembly and improving maintenance efficiency.

[0019] Both ends of the fixed base 701 are fixedly connected with second elastic telescopic rods 8. One end of the moving rod 703 passes through the fixed base 701 and extends to the outside of the fixed base 701. A limiting hole 9 is opened on the outer wall of the moving rod 703. The shape of the limiting hole 9 is adapted to the shape of the second elastic telescopic rod 8. The second elastic telescopic rod 8 is inserted into the moving rod 703 through the limiting hole 9. By setting the second spring 10 telescopic rod and the limiting hole 9, the position of the moving rod 703 can be positioned, thereby limiting the position of the first wedge block 704. Through double self-locking, the stability of the installation can be further improved.

[0020] A spring 10 is provided at one end of the first wedge block 704, and the other end of the spring 10 is connected to the corresponding end of the sleeve 702. By providing the spring 10, when the second wedge block 705 presses the first wedge block 704, the spring 10 can drive the two first wedge blocks 704 to move away from each other, thereby quickly fixing the first wedge block 704 and the second wedge block 705.

[0021] The front axle housing 1 is connected to the opposite ends of two half-shafts 2 on both sides, and the front axle housing 1 is connected to the wheel-side reducer 3 through the half-shafts 2.

[0022] Working principle: During use, the heat generated by the central drive mechanism 4 is concentrated on the first heat sink 502, and then transferred to the second heat sink 503 through the metal heat conduction strip 504. Since the second heat sink 503 is in contact with the outside, it can dissipate the heat, thus achieving a heat dissipation effect. When it is necessary to fix the front axle housing 1 to the mounting base 6, the first elastic telescopic rod 706 drives the second wedge block 705 to press against the first wedge block 704. When the second wedge block 705 presses against the first wedge block 704, since both the first wedge block 704 and the second wedge block 705 are inclined surfaces... This causes the second wedge 705 to press against the first wedge 704, which in turn moves the first wedge 704 to one side. At the same time, it presses against the spring 10, causing the spring 10 to contract and drive the moving rod 703 to slide along the sleeve 702. When the second wedge 705 is fully inserted into the bottom of the first wedge 704, the second wedge 705 and the first wedge 704 are no longer pressed together, allowing the first wedge to reset under the action of the spring 10 and limiting the top of the second wedge 705. Then, the telescopic rod of the second spring 10 is inserted into the limiting hole 9 of the moving rod 703.

[0023] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be covered within the scope of protection of this utility model.

Claims

1. A front axle structure for an off-road forklift, comprising a front axle housing (1), a main reducer, a differential, a half-shaft (2), and a wheel-side reducer (3), characterized in that: The main reducer and differential are integrated in a separate central drive mechanism (4), which is located at the top inside the front axle housing (1). The front axle housing (1) and the central drive mechanism (4) are connected by a heat dissipation mechanism (5). A mounting base (6) is provided on the top of the front axle housing (1), and the front axle housing (1) is connected to the mounting base (6) by a mounting mechanism (7). The heat dissipation mechanism (5) includes a heat sink (501), which is fixedly connected to the inside of the front axle housing (1). The inside of the heat sink (501) is fixedly connected to the outside of the central drive mechanism (4). A first heat sink (502) is provided around the heat sink (501), and a plurality of second heat sinks (503) are provided on the outside of the front axle housing (1). The first heat sink (502) and the second heat sink (503) are connected by a plurality of metal heat-conducting strips (504).

2. The off-road forklift front axle structure according to claim 1, characterized in that: The installation mechanism (7) includes a fixed seat (701), and there are two fixed seats (701). The two fixed seats (701) are fixedly connected to both sides of the front axle housing (1). Both ends of the inner wall of the fixed seat (701) are fixedly connected to a sleeve (702). The inner wall of the sleeve (702) is slidably connected to a moving rod (703). The opposite ends of the two moving rods (703) are fixedly connected to a first wedge block (704).

3. The off-road forklift front axle structure according to claim 2, characterized in that: A second wedge (705) is provided in the middle of the two first wedges (704), and the shapes of the first wedges (704) and the second wedges (705) are adapted to each other. A first elastic telescopic rod (706) is provided on one side of the second wedge (705), and the other end of the first elastic telescopic rod (706) is fixedly connected to the mounting base (6).

4. The off-road forklift front axle structure according to claim 2, characterized in that: Both ends of the fixed base (701) are fixedly connected with a second elastic telescopic rod (8). One end of the movable rod (703) passes through the fixed base (701) and extends to the outside of the fixed base (701). A limiting hole (9) is opened on the outer wall of the movable rod (703). The shape of the limiting hole (9) is adapted to the shape of the second elastic telescopic rod (8). The second elastic telescopic rod (8) is inserted into the movable rod (703) through the limiting hole (9).

5. The off-road forklift front axle structure according to claim 2, characterized in that: One end of the first wedge block (704) is provided with a spring (10), and the other end of the spring (10) is connected to the corresponding end of the sleeve (702).

6. The off-road forklift front axle structure according to claim 1, characterized in that: The front axle housing (1) is connected to the opposite ends of two half shafts (2) on both sides, and the front axle housing (1) is connected to the wheel-side reducer (3) through the half shafts (2).

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