Vehicle mechanical transmission device

Abstract

The utility model discloses a vehicle mechanical transmission device which comprises a suspension, wheels are movably arranged on the two sides of the surface of the suspension, a differential mechanism is arranged in the middle of the inner side of the suspension, half shafts are arranged between the differential mechanism and the wheels, and the power output shaft end of the differential mechanism is in transmission connection with the wheels through the half shafts. A first universal joint is arranged on one side of the surface of the differential mechanism, the first universal joint is in transmission connection with the power input shaft end of the differential mechanism through a spline, a second universal joint is arranged on one side of the first universal joint, a telescopic shaft sleeve is arranged between the first universal joint and the second universal joint, and the telescopic shaft sleeve comprises a fixed rod and a movable rod. And the first universal joint is fixedly connected with the fixed rod. The protection mechanism is arranged on the surface of the outer side of the traditional telescopic shaft sleeve, so that the effect of protecting the joint of the movable rod and the fixed rod can be effectively achieved, unnecessary friction loss is reduced, and abnormal sound is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to transmission device technical field, concretely is a kind of vehicle mechanical transmission device. BACKGROUND

[0002] In vehicle engineering, the mechanical transmission device of vehicle is particularly important, so that the power of engine can be transmitted to the wheel through gearbox, and the power of engine is transmitted to rear wheel. In the prior art, the power is finally transmitted to the wheel through universal joint, telescopic sleeve, differential and half shaft. In the telescopic sleeve part, there is no protection structure, and the telescopic shaft end of the telescopic sleeve is exposed outside. This is easy to cause the accumulation of dust and the insertion of stones outside the spline, which is easy to cause the accelerated wear of the telescopic sleeve, thereby easily causing the abnormal noise of the universal joint and telescopic sleeve part when the vehicle is running. Therefore, a vehicle mechanical transmission device needs to be improved for this problem. SUMMARY

[0003] The utility model aims at providing a kind of vehicle mechanical transmission device, to solve the problem raised in the above background.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of vehicle mechanical transmission device, including suspension, the suspension surface both sides are movably provided with wheel, the inside of the suspension middle part is provided with differential, the differential is provided with half shaft between wheel, the power output shaft end of the differential is drivenly connected between half shaft and wheel, the surface of the differential one side is provided with first universal joint, the power input shaft end between the first universal joint and differential is drivenly connected by spline, the first universal joint one side is provided with second universal joint, the first universal joint and second universal joint are provided with telescopic shaft sleeve between, the telescopic shaft sleeve includes fixed link, movable link, the first universal joint is fixedly connected between fixed link, the second universal joint is fixedly connected between movable link, protection mechanism is arranged between the fixed link and movable link.

[0005] Preferably, the protection mechanism includes a rubber protective sleeve, an extension ring, a fixed ring, a connecting piece, a claw, the outer surface of the movable rod is sleeved with a rubber protective sleeve, both ends of the rubber protective sleeve are fixedly provided with an extension ring, the outer surfaces of the fixed rod and the movable rod are fixedly provided with a fixed ring, the outer surface of the fixed ring is fixedly provided with a connecting piece, the outer surface of the connecting piece is fixedly provided with a claw, the claw is clamped on the outer surface of the extension ring, and the protection mechanism can cover and isolate part of the movable rod and can be folded or unfolded according to the movement of the movable rod, so that the connection between the movable rod and the fixed rod can be effectively protected, unnecessary friction loss can be reduced, abnormal sound can be prevented, meanwhile, when the rubber protective sleeve needs to be disassembled, the connecting piece is bent to dislocate the claw from the extension ring, and the rubber protective sleeve can be disassembled.

[0006] Preferably, the connecting piece is made of elastic metal material, the connecting piece made of elastic metal material can guarantee the strength of the connecting piece and can always clamp the claw on the extension ring through the elasticity of the connecting piece.

[0007] Preferably, the outer surface of the fixed ring is movably screwed with a limiting ring, the limiting ring can limit the connecting piece, as shown in Figure 4 and Figure 6 When the limiting ring is separated from the connecting piece, the connecting piece can be freely bent to dislocate the claw from the extension ring, when the limiting ring moves to the left and is sleeved on the outer surface of the connecting piece, the connecting piece cannot be bent outward, so that the claw cannot be separated from the extension ring, and the overall installation stability of the rubber protective sleeve can be improved, and the rubber protective sleeve can be prevented from falling off during vehicle driving.

[0008] Preferably, the extension ring and the rubber protective sleeve are provided with a notch, the extension ring and the rubber protective sleeve can be unfolded through the notch, so that when the new rubber protective sleeve is replaced, the rubber protective sleeve can be separated from the outer surface of the movable rod by unfolding the old rubber protective sleeve from the notch, and then the new rubber protective sleeve can be sleeved on the outer surface of the movable rod, and the notch position can be glued to ensure the sealing property.

[0009] Preferably, the movable rod is movably inserted into the fixed rod, the outer surface of the movable rod and the inner side wall of the fixed rod are uniformly provided with a plurality of clamping teeth, the clamping teeth are clamped on each other, so that the movable rod can only move in translation in the fixed rod and cannot rotate relatively, and the power transmission can be guaranteed.

[0010] Compared with the prior art, the utility model has the advantages that:

[0011] 1. The utility model discloses a rubber protection sleeve in the protection mechanism can cover the part of movable rod and isolate, and can fold or unfold according to the movement of movable rod, so can effectively play the role of protecting the connecting place of movable rod and fixed rod, to reduce unnecessary friction loss, prevent abnormal sound.

[0012] 2. The utility model discloses using through the limiting ring can play the role of limiting connecting piece, as Figure 4 And Figure 6 Shown, the limiting ring separates from the connecting piece at this time, at this time, the connecting piece can be bent freely, makes the jam and the extension ring dislocation, and when the limiting ring moves to the left and is set on the outside surface of connecting piece, the connecting piece cannot bend outward at this time, so the jam cannot separate from the extension ring, thereby the overall installation stability of rubber protection sleeve can be improved, prevent rubber protection sleeve from falling off when the vehicle is running. DRAWINGS

[0013] Figure 1 It is the overall structure schematic diagram of a vehicle mechanical transmission device of the utility model;

[0014] Figure 2 It is the overall structure view of telescopic shaft sleeve in a vehicle mechanical transmission device of the utility model;

[0015] Figure 3 It is the dismounting view of rubber protection sleeve in a vehicle mechanical transmission device of the utility model;

[0016] Figure 4 It is the sectional view of a vehicle mechanical transmission device of the utility model; Figure 2

[0017] Figure 5 It is the enlarged view of A place in a vehicle mechanical transmission device of the utility model; Figure 2

[0018] Figure 6 It is the enlarged view of B place in a vehicle mechanical transmission device of the utility model; Figure 4

[0019] Figure 7 It is the unfolding view of rubber protection sleeve in a vehicle mechanical transmission device of the utility model.

[0020] In the drawing: 1, hangs;2, wheel;3, differential;4, half shaft;5, first universal joint;6, second universal joint;7, fixed rod;8, movable rod;9, rubber protection sleeve;10, extension ring;11, fixed ring;12, connecting piece;13, claw;14, limiting ring. DETAILED DESCRIPTION

[0021] ​​​Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0022] Please refer to Figures 1-7 The utility model provides a technical scheme: a vehicle mechanical transmission device, including suspension 1, both sides of suspension 1 surface are provided with wheel 2 movably, the inside middle part of suspension 1 is provided with differential 3, the differential 3 is provided with half shaft 4 between wheel 2, the power output shaft end of differential 3 is connected through half shaft 4 between differential 3 and wheel 2 transmission, the surface one side of differential 3 is provided with first universal joint 5, the power input shaft end of first universal joint 5 and differential 3 is connected through spline transmission, one side of first universal joint 5 is provided with second universal joint 6, first universal joint 5 and second universal joint 6 are provided with telescopic shaft sleeve between, telescopic shaft sleeve includes fixed rod 7, movable rod 8, first universal joint 5 and fixed rod 7 are fixedly connected, second universal joint 6 and movable rod 8 are fixedly connected, fixed rod 7 and movable rod 8 are provided with protection mechanism between.

[0023] The protection mechanism includes rubber protection sleeve 9, extension ring 10, fixed ring 11, connecting piece 12, claw 13, the outer surface of movable rod 8 is provided with rubber protection sleeve 9, both ends of rubber protection sleeve 9 are fixedly provided with extension ring 10, the outer surface of fixed rod 7 and movable rod 8 is fixedly provided with fixed ring 11, the outer surface of fixed ring 11 is fixedly provided with connecting piece 12, the outer surface of connecting piece 12 is fixedly provided with claw 13, the claw 13 is clamped on the outer surface of extension ring 10, through protection mechanism, part of movable rod 8 can be covered and isolated, and can be folded or unfolded according to the movement of movable rod 8, so that the connection between movable rod 8 and fixed rod 7 can be effectively protected, unnecessary friction loss is reduced, and abnormal noise is prevented, meanwhile, the rubber protection sleeve 9 of the device drives the claw 13 to clamp the extension ring 10 to be fixed through the connecting piece 12, when the rubber protection sleeve 9 needs to be disassembled, only the connecting piece 12 is bent to make the connecting piece 12 drive the claw 13 to be dislocated from the extension ring 10, so that the rubber protection sleeve 9 can be disassembled;

[0024] The connecting piece 12 is of elastic metal material, through the connecting piece 12 of elastic metal material, the connecting piece 12 can guarantee sufficient strength, and the claw 13 can always clamp the extension ring 10 under the action of the elasticity of the connecting piece 12;

[0025] The outer surface of the fixed ring 11 is provided with a limiting ring 14 through screwing, which can limit the connecting piece 12. Figure 4 And Figure 6 When the limiting ring 14 is separated from the connecting piece 12, the connecting piece 12 can be bent freely, so that the connecting piece 12 is clamped with the extension ring 10, and when the limiting ring 14 is moved to the left and is sleeved on the outer surface of the connecting piece 12, the connecting piece 12 cannot be bent outward, so that the clamping cannot be separated from the extension ring 10, thereby improving the overall installation stability of the rubber protective sleeve 9; preventing the rubber protective sleeve 9 from falling off during vehicle driving.

[0026] The extension ring 10 and the rubber protective sleeve 9 are provided with a notch, so that the extension ring 10 and the rubber protective sleeve 9 can be unfolded, which is convenient for replacing the new rubber protective sleeve 9, and the old rubber protective sleeve 9 can be unfolded from the notch to make the rubber protective sleeve 9 fall off from the outer surface of the movable rod 8, and then the new rubber protective sleeve 9 can be wrapped around the outer surface of the movable rod 8, and the notch position can be glued to ensure the sealing property.

[0027] The movable rod 8 is movably inserted into the fixed rod 7, and the outer surface of the movable rod 8 and the inner side wall of the fixed rod 7 are uniformly provided with a plurality of clamping teeth, which are clamped with each other, so that the movable rod 8 can only move in translation in the fixed rod 7, and cannot rotate relatively, thereby ensuring the transmission of power.

[0028] Working principle: when the device is used, part of the movable rod 8 can be covered and isolated by the rubber protective sleeve 9 in the protection mechanism, and can be folded or unfolded according to the movement of the movable rod 8, so as to effectively protect the connection between the movable rod 8 and the fixed rod 7, reduce unnecessary friction loss, prevent abnormal noise, and fix the extension ring 10 by the connecting piece 12 driving the clamping claw 13; when the rubber protective sleeve 9 needs to be disassembled, the flexible connecting piece 12 is bent to drive the clamping claw 13 to be dislocated from the extension ring 10, so as to be disassembled; when disassembled, the old rubber protective sleeve 9 can be unfolded from the notch to make the rubber protective sleeve 9 fall off from the outer surface of the movable rod 8, and then the new rubber protective sleeve 9 can be wrapped around the outer surface of the movable rod 8, and the notch position can be glued to ensure the sealing property.

[0029] And the device can limit the connecting piece 12 through the limiting ring 14 when used. Figure 4 And Figure 6As shown, at this time, the limiting ring 14 is separated from the connecting piece 12, at this time, the connecting piece 12 can be freely bent, so that the clamping and the extension ring 10 are misaligned, and when the limiting ring 14 moves to the left and is sleeved on the outer side surface of the connecting piece 12, at this time, the connecting piece 12 cannot be bent outward, so that the clamping cannot be separated from the extension ring 10, so that the overall installation stability of the rubber protective sleeve 9 can be improved; prevent the rubber protective sleeve 9 from falling off during driving.

[0030] It should be noted that, in this document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0031] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vehicle mechanical transmission device, comprising a suspension (1), characterized in that: Wheels (2) are movably provided on both sides of the surface of the suspension (1), a differential (3) is provided at the middle part of the inner side of the suspension (1), a half shaft (4) is provided between the differential (3) and the wheel (2), a power output shaft end of the differential (3) is connected to the wheel (2) through the half shaft (4), a first universal joint (5) is provided on one side of the surface of the differential (3), the first universal joint (5) and the power input shaft end of the differential (3) are connected through a spline transmission, a second universal joint (6) is provided on one side of the first universal joint (5), a telescopic shaft sleeve is provided between the first universal joint (5) and the second universal joint (6), the telescopic shaft sleeve includes a fixed rod (7) and a movable rod (8), the first universal joint (5) and the fixed rod (7) are fixedly connected, the second universal joint (6) and the movable rod (8) are fixedly connected, and a protective mechanism is provided between the fixed rod (7) and the movable rod (8).

2. A vehicle mechanical transmission device according to claim 1, characterized in that: The protective mechanism comprises a rubber protective sleeve (9), an extension ring (10), a fixed ring (11), a connecting piece (12), and a claw (13); the outer surface of the movable rod (8) is covered with the rubber protective sleeve (9); both ends of the rubber protective sleeve (9) are fixedly provided with extension rings (10); the outer surfaces of the fixed rod (7) and the movable rod (8) are fixedly provided with fixing rings (11); the outer surface of the fixed ring (11) is fixedly provided with a connecting piece (12); the outer surface of the connecting piece (12) is fixedly provided with a claw (13); the claw (13) is engaged with the outer surface of the extension ring (10).

3. A vehicle mechanical transmission device according to claim 2, characterized in that: The connecting piece (12) is made of elastic metal material.

4. A vehicle mechanical transmission device according to claim 2, characterized in that: A limiting ring (14) is provided on the outer surface of the fixing ring (11) through movably screwing the fixing ring (11).

5. The vehicle mechanical transmission device according to claim 2, characterized in that: Notches are provided on the surfaces of the extension ring (10) and the rubber protective sleeve (9).

6. The vehicle mechanical transmission device according to claim 1, characterized in that: The movable rod (8) is movably inserted into the interior of the fixed rod (7), and a plurality of latching teeth are evenly arranged on the outer surface of the movable rod (8) and the inner side wall of the fixed rod (7), and the latching teeth are engaged with each other.

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