Commercial vehicle axle with structural design for reducing outer width of air chamber

Abstract

The utility model discloses a commercial vehicle axle with a structural design for reducing the outer width of an air chamber, which relates to the technical field of automobile parts and comprises an axle housing assembly, wheel end assemblies arranged at two ends of the axle housing assembly, an adjusting plate, two air chamber brackets and two air chambers, the two air chamber supports are oppositely arranged on the axle housing assembly, the two ends of the adjusting plate are connected with the two air chamber supports respectively, the two air chambers are installed on the adjusting plate, and the gap between each air chamber and the inner side of the girder is larger than or equal to 25 mm. On the premise of not manufacturing large dies and the like, the development cycle is shortened as much as possible, the cost is reduced, and the schemes of newly developing part blanks, adopting a special structure of a newly designed adjusting plate, machining transition mounting holes in original parts, selecting new part models and the like are not needed; the requirement for the change of the gap A value between the air chamber and the inner side of the girder caused by the change of the inner width C of the girder is met to the maximum extent.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile parts, and specifically relates to a commercial vehicle axle with a structure design of a reduced air chamber outer width. BACKGROUND

[0002] Referring to Figure 1 and Figure 2 , after the axle is mounted on the vehicle, the spring steel plate is directly connected to the upper automobile beam through a hinge, and the weight of the vehicle is transmitted to the axle through the beam and the spring steel plate. During driving, the beam will have different degrees of displacement up and down, left and right, and forward and backward, and in particular, the gap A between the air chamber in the left and right directions and the inner side of the beam must be ensured within a safe range, which is generally greater than or equal to 25 mm, and the gap A is ensured by changing the center distance L of the reduced air chamber. If the gap A cannot be ensured, the beam will damage the air chamber when it is displaced, and the vehicle brake is realized by the air chamber thrust. Once the air chamber fails, the consequence is that the vehicle loses braking and causes a major rollover accident.

[0003] In conventional vehicle design, the standard width beam and the narrow beam are reflected in the different values of the outer width B of the beam and the inner width C of the beam. Most of the time, the standard beam is used. In order to ensure the value of the gap A between the air chamber and the inner side of the beam, the offset distance of the air chamber support and the hole position of the axle housing assembly for installing the air chamber support are matched and designed, and the center distance L of the air chamber is adjusted to meet the value of the gap A between the air chamber and the inner side of the beam. However, the market demands various types of vehicles, and when the vehicle needs to adapt to the large number of narrow, winding and steep roads in the countryside, the outer width of the vehicle needs to be reduced, and the wheelbase of the axle needs to be shortened, which requires the use of a narrow beam. When other parts remain unchanged, the value of the gap A between the air chamber and the inner side of the beam cannot be ensured when the narrow beam is used. The inner side of the beam is close to the outer side of the air chamber, the value of the gap A is small, and the beam is easy to damage the air chamber, causing the vehicle to lose braking and causing the vehicle to be unable to drive or causing a larger accident. Therefore, in order to ensure the value of the gap A between the air chamber and the inner side of the beam, it is necessary to redevelop a large number of parts such as the axle housing assembly and the air chamber support. Most of these parts are castings, stampings, forgings, etc. The development investment is quite large, the cycle is long, the cost is high, and the outer width of the vehicle changes greatly, causing a large number of parts to be unable to be standardized, frequent development of related parts causing unnecessary waste, and the vehicle cannot meet the unlimited changes in demand. UTILITY MODEL CONTENTS

[0004] In view of the defects in the prior art, the utility model discloses a commercial vehicle axle with the structure design of narrowing air chamber outer width, under the premise of not doing big mould and other investment, tries to shorten the development cycle, reduces the expense, does not need the new development part blank, adopts the special structure of the new design adjusting plate, the original part processing transition mounting hole, the matching new part model scheme, maximumly satisfies the air chamber and the beam inner side gap A value change demand that the beam inner width C changes bring, and the effect is remarkable.

[0005] In order to achieve the above object, the utility model takes the technical scheme that a commercial vehicle axle with the structure design of narrowing air chamber outer width, including axle housing assembly and setting the wheel end assembly at axle housing assembly both ends, still including adjusting plate, two air chamber supports and two air chambers, two air chamber supports are oppositely set up on axle housing assembly, and the both ends of adjusting plate are connected with two air chamber supports respectively, and two air chambers are all installed on adjusting plate, and the gap of air chamber and beam inner side is greater than or equal to 25mm.

[0006] Further improvement lies in that the air chamber support includes mounting seat, the mounting seat is fixedly arranged on the axle housing assembly, and the top of the mounting seat is provided with an inwardly inclined support arm, the end of the support arm is provided with a connecting plate, and the connecting plate is provided with a first connecting hole for connecting the adjusting plate and a second connecting hole for connecting the air chamber.

[0007] Further improvement lies in that the both ends of the adjusting plate are provided with U-shaped mounting holes matched with the first connecting holes, and the fixing screws are connected with the corresponding first connecting holes after penetrating the U-shaped mounting holes.

[0008] Further improvement lies in that the U-shaped mounting hole is a counterbore.

[0009] Further improvement lies in that the first connecting hole is provided with two, and is located at the upper end outside and the lower end inside of the connecting plate respectively, and the U-shaped mounting hole includes two first U-shaped mounting holes located at the upper side edge of the adjusting plate and two second U-shaped mounting holes located at the lower side edge of the adjusting plate.

[0010] Further improvement lies in that the first U-shaped mounting hole located at one end of the adjusting plate is longitudinally arranged, and the second U-shaped mounting hole is transversely arranged, and the first U-shaped mounting hole located at the other end of the adjusting plate is transversely arranged, and the second U-shaped mounting hole is longitudinally arranged.

[0011] Further improvement lies in that the second connecting hole is located at the upper side edge of the connecting plate, the upper side edge of the adjusting plate is provided with a third connecting hole corresponding to the second connecting hole, one of the fixing bolts of the air chamber is sequentially locked through the third connecting hole and the second connecting hole by the fixed nut, and the lower side edge of the adjusting plate is provided with a fourth connecting hole, and the other fixing bolt of the air chamber is locked through the fourth connecting hole by the fixed nut.

[0012] Further improvement lies in that the lower side edge of the adjusting plate is provided with an avoiding groove matched with the rear cover of the axle housing, and the gap between the avoiding groove and the rear cover of the axle housing is greater than or equal to 10 mm.

[0013] Further improvement lies in that the adjusting arm comprises a fixed arm and a connecting arm, the fixed arm is installed on the axle housing assembly, one end of the connecting arm is hinged with the fixed arm through a rotating shaft, and the other end of the connecting arm is bent upwards to form a connecting part for connecting with the connecting fork of the air chamber.

[0014] Further improvement lies in that the connecting plate is provided with a first through hole through which the connecting fork passes, the adjusting plate is provided with a second through hole corresponding to the first through hole and through which the connecting fork passes, and the inner side of the first through hole is provided with an outward expansion part.

[0015] The utility model discloses beneficial effect lies in:

[0016] The utility model discloses under the premise of not doing big mould and other investment, shorten development cycle as far as possible, reduce expense, need not develop new part blank, adopt the special structure of new design adjusting plate, the transitional installation hole of original part processing, the scheme such as the selection of new part model, maximum limit satisfy the air chamber and the clearance A value change demand of the inside gap of girder that C changes bring, little, short, quick, effect is remarkable. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the structure schematic diagram of commercial vehicle axle in the prior art;

[0018] Figure 2 It is the structure schematic diagram of girder in the prior art;

[0019] Figure 3 It is the structure schematic diagram of commercial vehicle axle with the structure design of reducing air chamber outer width in the embodiment of the utility model;

[0020] Figure 4 It is the side view of Figure 3 ;

[0021] Figure 5 It is the structure schematic diagram of air chamber support in the embodiment of the utility model;

[0022] Figure 6 It is the structure schematic diagram of adjusting plate in the embodiment of the utility model;

[0023] Figure 7 It is the side view of Figure 6 ;

[0024] Figure 8For the embodiment of the utility model, the installation diagram of the adjusting plate Figure 1 ;

[0025] Figure 9 For the embodiment of the utility model, the installation diagram of the adjusting plate Figure 2 ;

[0026] Figure 10 For the embodiment of the utility model, the installation diagram of the adjusting plate Figure 3 ;

[0027] Figure 11 For the embodiment of the utility model, the structural diagram of the adjusting arm.

[0028] Reference signs:

[0029] 1-bridge housing assembly; 11-bridge housing rear cover;

[0030] 2-wheel end assembly;

[0031] 3-air chamber support; 31-mounting seat; 32-supporting arm; 33-connection plate; 34-first through hole; 35-outer expansion part; 36-first connecting hole; 37-second connecting hole;

[0032] 4-adjusting plate; 41-second through hole; 42-first U-shaped mounting hole; 43-second U-shaped mounting hole; 44-third connecting hole; 45-fourth connecting hole; 46-avoiding groove; 47-fixing screw;

[0033] 5-air chamber; 51-yoke;

[0034] 6-girder;

[0035] 7-adjusting arm; 71-fixing arm; 72-connection arm; 73-rotation shaft; 74-connection part;

[0036] 8-camshaft. DETAILED DESCRIPTION

[0037] The embodiments of the utility model are described in detail below, and the embodiment examples are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout.

[0038] In the description of the utility model, it is necessary to explain that, for the direction words, if the terms "center", "transverse (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation and positional relationship based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and not indicating or implying that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and cannot be understood as limiting the specific protection scope of the utility model.

[0039] In addition, if the terms "first", "second" are only used for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the "first", "second" features can be explicitly or implicitly included one or more features, and in the description of the utility model, the meaning of "several", "several" is two or more than two, unless otherwise explicitly specified.

[0040] The technical scheme of the utility model and its beneficial effects will be clearer and more explicit by further describing the specific embodiments of the utility model in conjunction with the drawings of the specification. The description of the embodiments by referring to the drawings is exemplary, and is intended to explain the utility model, and cannot be understood as limiting the utility model.

[0041] Referring to Figure 3 And Figure 4 As shown in the utility model embodiment provides a kind of commercial vehicle axle with the structure design of narrowing air chamber outer width, including axle housing assembly 1 and the wheel end assembly 2 of being set at the both ends of axle housing assembly 1, still include adjusting plate 4, two air chamber supports 3 and two air chambers 5;Two air chamber supports 3 are oppositely arranged on axle housing assembly 1, the both ends of adjusting plate 4 are connected with two air chamber supports 3 respectively, two air chambers 5 are all installed on adjusting plate 4, and the gap between air chamber 5 and girder 6 inner side is ≥25mm. By manufacturing adjusting plate of certain length, width and thickness, it can play the role of transition, to meet the connection of air chamber and air chamber support, and can guarantee the strength requirement of adjusting plate.

[0042] Referring to Figure 5As shown, the air chamber support 3 comprises a mounting seat 31 fixedly arranged on the axle housing assembly 1, and the top of the mounting seat 31 is provided with an inwardly inclined support arm 32, the end of the support arm 32 is provided with a connecting plate 33, and the connecting plate 33 is provided with a first connecting hole 36 for connecting the adjusting plate 4 and a second connecting hole 37 for connecting the air chamber 5. The air chamber support does not need a new casting mold, but only needs to process an air chamber mounting hole on the basis of the original air chamber support, and the connecting fork of the original air chamber is expanded outside the hole. This greatly reduces the development cost, shortens the development cycle, and is simple and efficient.

[0043] Referring to Figure 6-10 As shown, the two ends of the adjusting plate 4 are provided with U-shaped mounting holes matched with the first connecting holes 36, and the fixing screws 47 pass through the U-shaped mounting holes and are connected with the corresponding first connecting holes 36. Specifically, the U-shaped mounting hole is a counterbore to avoid interference between the nut and the bottom surface of the air chamber. The first connecting hole 36 is provided with two, which are respectively located on the upper end outside and the lower end inside of the connecting plate 33; the U-shaped mounting hole includes two first U-shaped mounting holes 42 located on the upper side edge of the adjusting plate 4 and two second U-shaped mounting holes 43 located on the lower side edge of the adjusting plate 4. The first U-shaped mounting hole 42 located at one end of the adjusting plate 4 is longitudinally arranged, and the second U-shaped mounting hole 43 is transversely arranged; the first U-shaped mounting hole 42 located at the other end of the adjusting plate 4 is transversely arranged, and the second U-shaped mounting hole 43 is longitudinally arranged. The second connecting hole 37 is located on the upper side edge of the connecting plate 33; the upper side edge of the adjusting plate 4 is provided with a third connecting hole 44 corresponding to the second connecting hole 37, one of the fixing bolts of the air chamber 5 passes through the third connecting hole 44 and the second connecting hole 37 in sequence and is locked by a fixing nut; the lower side edge of the adjusting plate 4 is provided with a fourth connecting hole 45, and the other fixing bolt of the air chamber 5 passes through the fourth connecting hole 45 and is locked by a fixing nut. The lower side edge of the adjusting plate 4 is provided with a clearance groove 46 matched with the axle housing rear cover 11, and the gap between the clearance groove 46 and the axle housing rear cover 11 is ≥10mm to prevent interference and collision. The adjusting plate is directly mounted in the hole of the original air chamber support for connecting the air chamber, so that four vertical and transverse U-shaped holes for connecting the left and right air chamber supports are processed on the adjusting plate, which facilitates the free movement and adjustment of the adjusting plate 7 left and right and front and back, and is easy to install;

[0044] Referring to Figure 3 and Figure 11As shown, the commercial vehicle axle with the structure design of the reduced air chamber outer width further comprises two adjusting arms 7 and two camshafts 8, the adjusting arm 7 comprises a fixed arm 71 and a connecting arm 72, the fixed arm 71 is installed on the axle housing assembly 1, one end of the connecting arm 72 is hinged with the fixed arm 71 through a rotating shaft 73, the other end of the connecting arm 72 is upwardly bent to form a connecting part 74 for connecting with the connecting fork 51 of the air chamber 5, and the two ends of the camshaft 8 are connected with the corresponding wheel end assembly 2 and the fixed arm 71 respectively.

[0045] The utility model discloses, through the adjusting plate, realize the connection of air chamber and air chamber support, the hole position of axle housing assembly installation air chamber support is invariable, and the air chamber support only reprocesses the mounting hole of installation adjusting plate, to avoid the interference of air chamber bottom surface and the cap of fixed screw, adopts the internal hexagon counterbore fixed screw connection, adjusting plate is installed on the air chamber support, and air chamber is installed on the adjusting plate, and through the position change of the mounting hole on the adjusting plate, the air chamber center distance L is adjusted, thereby guaranteeing that the clearance A between air chamber and the inside of girder is in the safe range, and because of the position change of air chamber, the offset distance type of adjusting arm needs to be newly selected, in order to guarantee the installation deviation of air chamber support, the U-shaped mounting hole of different directions is processed on the adjusting plate, and the special U-shaped mounting hole direction can realize free installation, so that through the size change of the newly designed adjusting plate structure, the clearance A value change of air chamber and the inside of girder can be realized freely and conveniently.

[0046] In the description of the specification, the description of the terms "one embodiment", "preferably", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model, and the illustrative description of the above terms in the specification does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0047] Through the description of the above structure and principle, those skilled in the art should understand that the utility model is not limited to the above-mentioned specific embodiments, and improvements and replacements of the technology known in the art based on the utility model fall within the protection scope of the utility model, which should be limited by the claims.

Claims

1. A commercial vehicle axle with reduced air chamber outer width structural design, comprising an axle housing assembly (1) and wheel end assemblies (2) provided at both ends of the axle housing assembly (1), characterized in that: It also includes an adjusting plate (4), two air chamber supports (3) and two air chambers (5); the two air chamber supports (3) are oppositely arranged on the axle housing assembly (1), the two ends of the adjusting plate (4) are connected with the two air chamber supports (3) respectively, and the two air chambers (5) are installed on the adjusting plate (4), and the gap between the air chamber (5) and the inner side of the girder (6) is greater than or equal to 25 mm.

2. The commercial vehicle axle with reduced overhang air chamber exterior width design of claim 1, characterized by: The air chamber support (3) comprises a mounting seat (31) fixedly arranged on the axle housing assembly (1), and the top of the mounting seat (31) is provided with an inwardly inclined support arm (32), and the end of the support arm (32) is provided with a connecting plate (33), and the connecting plate (33) is provided with a first connecting hole (36) for connecting the adjusting plate (4) and a second connecting hole (37) for connecting the air chamber (5).

3. The commercial vehicle axle with reduced overhang air chamber exterior width design of claim 2, characterized by: The two ends of the adjusting plate (4) are provided with U-shaped mounting holes matched with the first connecting hole (36), and the fixed screw (47) passes through the U-shaped mounting hole and is connected with the corresponding first connecting hole (36).

4. The commercial vehicle axle with reduced overhang air chamber exterior width design of claim 3, characterized by: The U-shaped mounting hole is a counterbore.

5. The commercial vehicle axle with reduced overhang air chamber exterior width design of claim 3, wherein: The first connecting hole (36) is provided with two, which are respectively located on the outer side of the upper end and the inner side of the lower end of the connecting plate (33); the U-shaped mounting hole comprises two first U-shaped mounting holes (42) located on the upper side of the adjusting plate (4) and two second U-shaped mounting holes (43) located on the lower side of the adjusting plate (4).

6. The commercial vehicle axle with reduced overhang air chamber exterior width design of claim 5, characterized by: The first U-shaped mounting hole (42) located at one end of the adjusting plate (4) is longitudinally arranged, and the second U-shaped mounting hole (43) is transversely arranged; the first U-shaped mounting hole (42) located at the other end of the adjusting plate (4) is transversely arranged, and the second U-shaped mounting hole (43) is longitudinally arranged.

7. The commercial vehicle axle with reduced overhang air chamber exterior width design of claim 2, wherein: The second connecting hole (37) is located on the upper side of the connecting plate (33); the upper side of the adjusting plate (4) is provided with a third connecting hole (44) corresponding to the second connecting hole (37), one of the fixed bolts of the air chamber (5) passes through the third connecting hole (44) and the second connecting hole (37) in sequence and is locked by a fixed nut; the lower side of the adjusting plate (4) is provided with a fourth connecting hole (45), and the other fixed bolt of the air chamber (5) passes through the fourth connecting hole (45) and is locked by a fixed nut.

8. The commercial vehicle axle with reduced overhang air chamber exterior width design of claim 1, wherein: The lower side of the adjusting plate (4) is provided with a clearance groove (46) matched with the axle housing rear cover (11), and the gap between the clearance groove (46) and the axle housing rear cover (11) is greater than or equal to 10 mm.

9. The commercial vehicle axle with reduced overhangs exterior width design of claim 2, characterized by: It also includes two adjusting arms (7) and two camshafts (8), the adjusting arm (7) comprises a fixed arm (71) and a connecting arm (72), the fixed arm (71) is installed on the axle housing assembly (1), one end of the connecting arm (72) is hinged with the fixed arm (71) through a rotating shaft (73), the other end of the connecting arm (72) is upwardly bent to form a connecting part (74) used for connecting with the connecting fork (51) of the air chamber (5); the two ends of the camshaft (8) are connected with the corresponding wheel end assembly (2) and the fixed arm (71) respectively.

10. The commercial vehicle axle with reduced overhang air chamber exterior width design of claim 9, characterized by: The connecting plate (33) is provided with a first through hole (34) for the connecting fork (51) to pass through, and the adjusting plate (4) is provided with a second through hole (41) corresponding to the first through hole (34) and for the connecting fork (51) to pass through; the inner side of the first through hole (34) is provided with an outward expansion part (35).

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