Gearbox gear changing and selecting operation mechanism and mining rigid dumper

Abstract

The utility model discloses a gearbox gear shifting and selecting operating mechanism and a mining rigid dumper. The gearbox gear shifting and selecting operating mechanism comprises a manipulator, a support base plate, a gear shifting flexible shaft, a gear shifting flexible shaft support and a gear selecting flexible shaft support. The manipulator is provided with a handle and is used for carrying out gear shifting and selecting operation on the gearbox; the bracket base plate is assembled on an upper cover of the gearbox; the manipulator is connected with the gear shifting rocker arm through the gear shifting flexible shaft and used for controlling a gearbox gear shifting mechanism. The manipulator is connected with the gear selecting arm through the gear selecting flexible shaft and used for controlling a gear selecting mechanism of the gearbox. The gear shifting flexible shaft support is assembled on the support base plate and used for fixing the gear shifting flexible shaft. The gear selecting flexible shaft support is assembled on the support base plate and used for fixing the gear selecting flexible shaft. According to the utility model, the gear shifting and selecting flexible shaft can be fixed on the gearbox, so that the influence of the vibration of the whole vehicle on the connecting part of the gear shifting and selecting structure is weakened, the reliability of the gear shifting and selecting structure is improved, meanwhile, the flexible shaft and the gear shifting and selecting arm are kept at a 90-degree included angle, and the applied force required by gear shifting and selecting can be reduced by increasing the force arm.

Description

Technical Field

[0001] The utility model relates to a gearbox shifting and selecting operating mechanism, belonging to the technical field of gearboxes. Background Art

[0002] Nowadays, people's performance requirements for mining dump trucks are not limited to fuel, power and safety. Driving comfort has also become an important criterion for measuring the performance of mining dump trucks, especially for mining trucks equipped with manual gearboxes. Since the driver needs to frequently shift and select gears, the comfort of this process is the most intuitive feeling of the driver. Therefore, the operating comfort of the gearbox shifting and selecting system needs to be improved urgently.

[0003] At the same time, the operating conditions of mining dump trucks are harsh, with many undulating muddy roads, and the vibration amplitude of the whole vehicle is large and frequent. If the shift and selection shafts are improperly installed, it will not only hinder the smooth shifting of the gearbox, but also affect the power performance of the whole vehicle. In addition, the layout of the shift shaft must not only meet the requirements of the gearbox, but also be smooth and stable, and the bending angle must meet the requirements of the shaft itself. Based on the above status of the gearbox control system, the reliability and operating comfort of the shift and selection mechanism of mining dump trucks need to be continuously optimized. Summary of the invention

[0004] The utility model provides a gearbox shift and selection operating mechanism, which can fix the gear shift and selection soft shaft on the gearbox, thereby weakening the influence of the whole vehicle vibration on the connection part of the gear shift and selection structure, improving its reliability, and at the same time ensuring that the soft shaft and the gear shift and selection arm maintain a 90° angle, and the applied force required for gear shift and selection can be reduced by increasing the force arm.

[0005] The utility model is implemented according to the following technical solutions:

[0006] In a first aspect, the utility model provides a gearbox shifting and selecting operating mechanism, comprising:

[0007] A manipulator, having a handle, for shifting and selecting gears of the gearbox;

[0008] A bracket pad is assembled on the upper cover of the gearbox;

[0009] A gear shift flexible shaft, wherein the manipulator is connected to the gear shift rocker arm via the gear shift flexible shaft, and is used to control the gearbox shift mechanism;

[0010] A gear selection flexible shaft, wherein the manipulator is connected to the gear selection arm via the gear selection flexible shaft and is used to control the gear selection mechanism of the transmission;

[0011] A gear shift flexible shaft bracket, mounted on the bracket pad, and used for fixing the gear shift flexible shaft;

[0012] The gear selection flexible shaft bracket is assembled on the bracket pad and is used to fix the gear selection flexible shaft.

[0013] In some embodiments, the bracket plate is provided with a plurality of through holes, and the positions of the plurality of through holes are the same as the bolt distribution of the gearbox upper cover, and the bracket plate is fixed to the gearbox through the bolts of the gearbox upper cover.

[0014] In some embodiments, the gear shift flexible shaft bracket includes:

[0015] The bent plate bracket is a bracket bent at 90 degrees, and a plurality of through holes are provided on its horizontal plate, which is fixed to the bracket pad by bolts; a plurality of through holes are opened on the vertical plate of the bent plate bracket for assembling a U-shaped clamp for fixing the shift flexible shaft;

[0016] The gas path bracket is a bracket that is bent twice at 90 degrees, and its tail is fixed on the horizontal plate of the bent plate bracket.

[0017] In some embodiments, the gear shift flexible shaft bracket also includes a rib plate 1, which is fixed at the inner angle of the bent plate bracket to increase the supporting force of the bent plate bracket.

[0018] In some embodiments, the gear selection flexible shaft bracket includes:

[0019] The bending bracket is a Z-shaped structure as a whole, and a plurality of through holes are provided on the bottom surface thereof, and is fixed to the bracket pad by bolts; a plurality of through holes are provided on the top surface of the bending bracket, and is used to assemble a U-shaped clip for fixing the gear selection flexible shaft;

[0020] The second rib plate is fixed on the side surface of the self-bending bracket and extends from the bottom surface of the bending bracket along the height direction thereof to the top surface of the bending bracket.

[0021] In some embodiments, when the shift rocker arm and the gear selector arm are not operated, the angle between the shift rocker arm and the shift flexible shaft and the angle between the gear selector arm and the gear selector flexible shaft are both 90 degrees.

[0022] In some embodiments, the gear selector arm is provided with a plurality of through holes and is mounted on the gear selector shaft of the gearbox by means of bolts and nuts. The gear selector shaft is provided with an R groove to provide installation space for the bolts.

[0023] In a second aspect, the utility model provides a rigid dump truck for mining, which is equipped with the above-mentioned gearbox shifting and selecting operating mechanism.

[0024] Beneficial effects of the utility model:

[0025] The utility model uses a flexible shaft bracket for shifting and selecting gears to fix the flexible shaft for shifting and selecting gears on the gearbox, which can effectively reduce the influence of the vibration of the whole vehicle on the connection part of shifting and selecting gears, and improve its reliability. At the same time, when the structure of the shifting and selecting gears arm is determined, the structure can ensure that the flexible shaft and the shifting and selecting gears arm maintain a 90° angle, so as to ensure that the force arm always maintains the maximum value, thereby reducing the applied force required for shifting and selecting gears, which not only improves the reliability of the shifting and selecting gears structure, but also makes the driver more comfortable and smooth when shifting and selecting gears, and less laborious. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation on the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0027] In the attached picture:

[0028] Figure 1 It is a schematic diagram of the gearbox shifting and selecting operating mechanism of the utility model;

[0029] Figure 2 It is a partial diagram of the gearbox shifting and selecting operating mechanism of the utility model;

[0030] Figure 3 This is a schematic diagram of the support pad of the utility model;

[0031] Figure 4 This is a schematic diagram of the gear shift flexible shaft bracket of the utility model;

[0032] Figure 5 It is a schematic diagram of the gear selection flexible shaft bracket of the utility model.

[0033] The accompanying drawings indicate: gearbox 1, manipulator 2, bracket pad 3, shift flexible shaft bracket 4, gear selection flexible shaft bracket 5, shift rocker arm 6, gear selection arm 7, shift flexible shaft 8 and gear selection flexible shaft 9; bent plate bracket 4-1, rib plate one 4-2, air path bracket 4-3; bent bracket 5-1, rib plate two 5-2.

[0034] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0036] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] like Figure 1 , Figure 2 As shown, a gearbox shift and selection operating mechanism includes a gearbox 1, a manipulator 2, a bracket pad 3, a gearshift flexible shaft bracket 4, a gear selection flexible shaft bracket 5, a gearshift rocker arm 6, a gear selection arm 7, a gearshift flexible shaft 8 and a gear selection flexible shaft 9. The manipulator 2 has a handle for performing gearshift and gear selection operations on the gearbox 1; the manipulator 2 is connected to the gearshift rocker arm 6 through the gearshift flexible shaft 8 to control the gearshift mechanism of the gearbox 1; the manipulator 2 is connected to the gear selection arm 7 through the gear selection flexible shaft 9 to control the gear selection mechanism of the gearbox 1. The bracket pad 3 is fixed to the upper cover of the gearbox 1, and the gearshift flexible shaft bracket 4 and the gear selection flexible shaft bracket 5 are fixed to the bracket pad 3 by bolts; the gearshift flexible shaft bracket 4 is used to fix the gearshift flexible shaft 8, and the gear selection flexible shaft bracket 5 is used to fix the gear selection flexible shaft 9.

[0039] The above-mentioned support pad is further described below.

[0040] like Figure 3 As shown, the bracket pad 3 is provided with a plurality of through holes, and the positions of the plurality of through holes are the same as the bolt distribution of the gearbox upper cover, and the bracket pad 3 is fixed to the gearbox 1 by the bolts of the gearbox upper cover.

[0041] The above-mentioned gear shift flexible shaft bracket is further described below.

[0042] like Figure 4As shown, the shift flexible shaft bracket 4 is composed of a bent plate bracket 4-1, a rib plate 4-2 and an air circuit bracket 4-3 welded together. The bent plate bracket 4-1 is a bracket bent at 90 degrees, and a plurality of through holes are provided on its horizontal plate, which is fixed to the bracket pad 3 by bolts; a plurality of through holes are opened on the vertical plate of the bent plate bracket 4-1 for assembling a U-shaped clamp for fixing the shift flexible shaft 8; the air circuit bracket 4-3 is a bracket bent 90 degrees twice, and a tail portion thereof is fixed to the horizontal plate of the bent plate bracket 4-1; the rib plate 4-2 is fixed at the inner angle of the bent plate bracket 4-1, and is used to increase the supporting force of the bent plate bracket 4-1.

[0043] The above-mentioned gear selection flexible shaft bracket is further explained below.

[0044] like Figure 5 As shown, the gear selection flexible shaft bracket 5 is composed of a bending bracket 5-1 and a rib plate 5-2 welded together. The bending bracket 5-1 is a Z-shaped structure as a whole, and a plurality of through holes are provided on its bottom surface, which is fixed to the bracket pad 3 by bolts; a plurality of through holes are opened on the top surface of the bending bracket 5-1 for assembling a U-shaped clamp for fixing the gear selection flexible shaft 9; the rib plate 5-2 is fixed on the side of the bending bracket 5-1, and extends from the bottom surface of the bending bracket 5-1 along its height direction to the top surface of the bending bracket 5-1.

[0045] Further solution: When the shift rocker arm 6 and the gear selection arm 7 are not operated, the angle between the shift rocker arm 6 and the shift flexible shaft 8 and the angle between the gear selection arm 7 and the gear selection flexible shaft 9 are both 90 degrees to ensure that the force arm is maximized, thereby reducing the force applied for shifting and selecting gears.

[0046] A further solution is that the gear selector arm 7 is provided with a plurality of through holes, and is mounted on the gear selector shaft of the gearbox 1 by means of bolts and nuts. An R groove is provided on the gear selector shaft to provide installation space for the bolts.

[0047] In summary, the utility model uses the shift and selection flexible shaft bracket to fix the shift and selection flexible shaft on the gearbox, which can effectively reduce the influence of the whole vehicle vibration on the shift and selection connection part and improve its reliability. At the same time, when the shift and selection arm structure is determined, the structure can ensure that the flexible shaft and the shift and selection arm maintain a 90° angle to ensure that the force arm always maintains the maximum value, thereby reducing the applied force required for shifting and selecting, which not only improves the reliability of the shift and selection structure, but also makes the driver more comfortable and smooth when shifting and selecting, and less laborious.

[0048] The utility model also provides a mining rigid dump truck, which is equipped with the above-mentioned gearbox shifting and selecting operating mechanism.

[0049] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0050] In addition, those skilled in the art will understand that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments also means being within the scope of protection of the present utility model and forming different embodiments. For example, in the above embodiments, those skilled in the art can use them in combination according to the known technical solutions and the technical problems to be solved by the present application.

[0051] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model has been disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this patent can make some changes or modify the technical content suggested above into an equivalent embodiment with equivalent changes without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of the solution of the utility model.

Claims

1. A gearbox shifting and selecting operating mechanism, characterized in that: include: A manipulator, having a handle, for shifting and selecting gears of the gearbox; A bracket pad is assembled on the upper cover of the gearbox; A gear shift flexible shaft, wherein the manipulator is connected to the gear shift rocker arm via the gear shift flexible shaft, and is used to control the gearbox shift mechanism; A gear selection flexible shaft, wherein the manipulator is connected to the gear selection arm via the gear selection flexible shaft and is used to control the gear selection mechanism of the transmission; A gear shift flexible shaft bracket, mounted on the bracket pad, and used for fixing the gear shift flexible shaft; A gear selection flexible shaft bracket, mounted on the bracket pad, and used for fixing the gear selection flexible shaft; The gear shift flexible shaft bracket comprises: The bent plate bracket is a bracket bent at 90 degrees, and a plurality of through holes are provided on its horizontal plate, which is fixed to the bracket pad by bolts; a plurality of through holes are opened on the vertical plate of the bent plate bracket for assembling a U-shaped clamp for fixing the shift flexible shaft; The gas path bracket is a bracket that is bent twice at 90 degrees, and its tail is fixed on the horizontal plate of the bent plate bracket; The gear selection flexible shaft bracket comprises: The bending bracket is a Z-shaped structure as a whole, and a plurality of through holes are provided on the bottom surface thereof, and is fixed to the bracket pad by bolts; a plurality of through holes are provided on the top surface of the bending bracket, and is used to assemble a U-shaped clip for fixing the gear selection flexible shaft; The second rib plate is fixed on the side surface of the self-bending bracket and extends from the bottom surface of the bending bracket along the height direction thereof to the top surface of the bending bracket.

2. A gearbox shifting and selecting operating mechanism according to claim 1, characterized in that: The bracket pad is provided with a plurality of through holes, and the positions of the plurality of through holes are the same as the bolt distribution of the gearbox upper cover, and the bracket pad is fixed to the gearbox through the bolts of the gearbox upper cover.

3. A gearbox shifting and selecting operating mechanism according to claim 1, characterized in that: The gear shift flexible shaft bracket also includes: The rib plate 1 is fixed at the inner angle of the bent plate bracket and is used to increase the supporting force of the bent plate bracket.

4. A gearbox shifting and selecting operating mechanism according to claim 1, characterized in that: When the shift rocker arm and the gear selector arm are not operated, the angle between the shift rocker arm and the shift flexible shaft and the angle between the gear selector arm and the gear selector flexible shaft are both 90 degrees.

5. A gearbox shifting and selecting operating mechanism according to claim 1, characterized in that: The gear selection arm is provided with a plurality of through holes and is mounted on the gear selection shaft of the gearbox through bolts and nuts. The gear selection shaft is provided with an R groove to provide installation space for the bolts.

6. A rigid dump truck for mining, characterized in that: A gearbox shifting and selecting operating mechanism according to any one of claims 1 to 5 is installed.

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