Loader gear limiting device

Abstract

The utility model discloses a loader gear limiting device which comprises a fixing support and a limiting assembly, the fixing support is arranged on a gearbox, a gear lever is located between the fixing support and the gearbox, and the limiting assembly is arranged on the side, away from the gearbox, of the fixing support and used for adjusting and limiting gears of the gear lever within the range of a neutral gear, a low gear and a reverse gear. The limiting assembly comprises a locking nut and a limiting bolt, the locking nut is fixed to the side, facing the gearbox, of the fixing support, and the limiting bolt penetrates through the fixing support and is in threaded connection with the locking nut so as to slide in the direction close to or away from the gear lever. The gear limiting device of the loader is assembled at the position of the gear lever of the gearbox, the loader is always operated in a neutral gear, a low gear and a reverse gear by limiting the gear lever of the gearbox to enter a high-speed running gear, the manufacturing cost is low, the structure is simple, the application scene of a single power transmission output system is expanded, and the application range is wide. The production management efficiency is effectively improved, and the cost is saved.

Description

Technical Field

[0001] The utility model relates to a gear limiting device for a loader and belongs to the technical field of loaders. Background Art

[0002] At present, under some special working conditions, when loaders such as forklifts run at high speed, it will affect the stability of the operation and increase safety hazards. The power transmission output system composed of single-cylinder, double-cylinder, four-cylinder engines and multi-speed gearboxes used in existing loaders often cannot meet the requirements of low-speed loaders.

[0003] In order to meet the use requirements of low-speed loaders, manufacturers currently change the power transmission output system of the whole vehicle to cope with different use requirements, which increases the development cost and the difficulty of production management. Therefore, there is an urgent need for a loader gear limit device, which can limit the gear lever of the gearbox from entering the high-speed running gear, so that the loader can always operate in neutral, low gear and reverse gear, thereby reducing the development cost and the difficulty of production management. Utility Model Content

[0004] The technical problem to be solved by the utility model is that in order to meet the use requirements of low-speed loaders, manufacturers currently change the power transmission output system of the whole vehicle to cope with different use requirements, but this also increases the development cost and the difficulty of production management.

[0005] In order to solve the above technical problems, the utility model provides a loader gear limit device with low cost and simple structure. It can limit the gear lever of the gearbox from entering the high-speed running gear, so that the loader always operates in neutral, low gear and reverse gear.

[0006] In order to achieve the above technical objectives and the above technical effects, this application is implemented through the following technical solutions:

[0007] A gear limit device for a loader comprises a fixed bracket and a limit assembly, wherein the fixed bracket is arranged on a gearbox, a gear lever is located between the fixed bracket and the gearbox, and the limit assembly is arranged on a side of the fixed bracket away from the gearbox for limiting the gear adjustment of the gear lever within the range of neutral, low gear and reverse gear.

[0008] Preferably, the limiting assembly includes a locking nut and a limiting bolt, the locking nut is fixed to a side of the fixing bracket facing the gearbox, and the limiting bolt passes through the fixing bracket and is threadedly connected to the locking nut to slide toward or away from the shift lever.

[0009] Preferably, a pre-tightening nut is coaxially arranged with the locking nut on a side of the fixing bracket facing away from the gearbox, and the limiting bolt is threadedly connected with the pre-tightening nut.

[0010] Preferably, the fixing bracket is detachably arranged on the gearbox through fixing bolts.

[0011] The loader gear position limiting device provided by the present utility model has the following advantages:

[0012] For the loader gear position limiting device of the present utility model, without changing the power transmission system, by adding a fixing bracket, a locking nut and a limiting bolt threadedly connected to the locking nut, during use, by adjusting the length of the limiting bolt between the side wall of the gearbox and the fixing bracket, the gear shift lever of the gearbox is restricted from entering the high-speed operation gear position, so that the loader always operates in neutral, low gear and reverse gear, and has low manufacturing cost, simple structure, expands the application scenarios of a single power transmission output system, effectively improves the production management efficiency and saves costs. Description of the Drawings

[0013] Figure 1 It is a schematic structural diagram of a gearbox with a gear shift lever;

[0014] Figure 2 It is an assembly schematic diagram of a loader gear position limiting device of the present utility model;

[0015] In the figure:

[0016] 1 - fixing bracket; 2 - limiting component; 21 - locking nut; 22 - limiting bolt; 3 - fixing bolt; 4 - pre-tightening nut; 5 - gearbox; 6 - gear shift lever. Detailed Embodiments

[0017] Next, the technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0018] Referring to Figure 1 and Figure 2 , a loader gear position limiting device includes a fixing bracket 1 and a limiting component 2. The fixing bracket 1 is installed on the gearbox 5. In a feasible embodiment, the fixing bracket 1 can be fixedly welded to the gearbox 5 or detachably installed on the gearbox 5 housing through a fixing bolt 3. In this embodiment, the fixing bracket 1 is preferably detachably fixed through the fixing bolt 3 to improve the overall adaptability of the device. The gear shift lever 6 for gear position adjustment on the gearbox 5 is located between the fixing bracket 1 and the gearbox 5. The limiting component 2 is installed on the side of the fixing bracket 1 facing away from the gearbox 5 to limit the gear position adjustment of the gear shift lever 6 within the range of neutral, low gear and reverse gear.

[0019] Further, the limiting component 2 includes a locking nut 21 and a limiting bolt 22. The locking nut 21 is welded and fixed on the side wall of the fixed bracket 1 facing the gearbox 5. The limiting bolt 22 passes through the fixed bracket 1 and is threadedly connected to the locking nut 21. By rotating the limiting bolt 22, the limiting bolt 22 can slide towards or away from the gear lever 6 to limit the gear shifting of the gear lever 6.

[0020] Refer to Figure 2 , in a further embodiment, a pre-tightening nut 4 is coaxially fixed to the side of the fixed bracket 1 facing away from the gearbox 5 and the locking nut 21. The limiting bolt 22 is threadedly connected to the pre-tightening nut 4.

[0021] The usage method of a gear position limiting device for a loader according to the present utility model is as follows:

[0022] The fixing bolt 3 locks the fixed bracket 1 welded with the locking nut 21 on the gearbox 5 housing. During use, rotate the limiting bolt 22 threadedly connected to the locking nut 21 to adjust the length of the limiting bolt 22 between the fixed bracket 1 and the gearbox 5 to a length that can limit the gear lever 6 from entering the high gear. Further, when the gear lever 6 of the gearbox 5 enters the high gear, it is blocked by the limiting bolt 22, resulting in the inability to shift into the high gear, achieving the purpose of operating the vehicle between low gear, neutral gear, and reverse gear. At the same time, the pre-tightening nut 4 can provide additional pre-tightening force in the connection between the limiting bolt 22 and the locking nut 21, thereby avoiding loosening or failure of the connection between the limiting bolt 22 and the locking nut 21.

[0023] The above is only the preferred embodiment of the present utility model, and it does not impose any formal or substantial limitations on the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the premise of the present utility model, several improvements and supplements can still be made, and these improvements and supplements should also be regarded as the protection scope of the present utility model. For those skilled in the art, without departing from the spirit and scope of the present utility model, any equivalent changes made by making some modifications, decorations, and evolutions using the technical content disclosed above are all equivalent embodiments of the present utility model; at the same time, any equivalent changes made by making modifications, decorations, and evolutions to the above embodiments based on the substantial technology of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. A gear limit device for a loader, characterized in that: The invention comprises a fixed bracket (1) and a limiting assembly (2), wherein the fixed bracket (1) is arranged on a gearbox (5), a gearshift lever (6) is located between the fixed bracket (1) and the gearbox (5), and the limiting assembly (2) is arranged on a side of the fixed bracket (1) away from the gearbox (5) for limiting the gear adjustment of the gearshift lever (6) within the range of neutral, low gear and reverse gear; the limiting assembly (2) comprises a locking nut (21) and a limiting bolt (22), wherein the locking nut (21) is fixed on a side of the fixed bracket (1) facing the gearbox (5), and the limiting bolt (22) passes through the fixed bracket (1) and is threadedly connected to the locking nut (21) so as to slide in a direction close to or away from the gearshift lever (6).

2. A loader gear position limiting device as claimed in claim 1, characterized in that: A pre-tightening nut (4) is coaxially arranged with the locking nut (21) on the side of the fixing bracket (1) facing away from the gearbox (5), and the limiting bolt (22) is threadedly connected to the pre-tightening nut (4).

3. A loader gear limiter as claimed in claim 1, characterized in that: The fixing bracket (1) is detachably arranged on the gearbox (5) via fixing bolts (3).

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