Automobile suspension balance arm

Abstract

The utility model relates to the technical field of automobile accessories, in particular to an automobile suspension balance arm which comprises a balance arm body and a balance shaft arranged on the balance arm body, two sets of annular grooves are formed in the surface of the balance shaft, and oil storage bags are fixedly connected to the side walls of inner cavities of the annular grooves. Through the use of the positioning assembly, the connection between the balance arm and the balance shaft is more stable, various external forces can be better borne in the running process of a vehicle, stable transmission of the forces is guaranteed, and the control stability and safety of the vehicle are improved; the sealing assembly is arranged on the balance arm, the connecting portion of the balance arm and the balance shaft is sealed, impurities such as silt and water are prevented from entering the sealing assembly, meanwhile, the oil storage bag is extruded in the sealing assembly installation process, lubricating agents are automatically released to the friction portion, timely lubrication is achieved, and friction losses between the balance arm and the balance shaft and between the balance arm and the sealing assembly are effectively reduced. The service life of the balance arm is prolonged, and the maintenance cost of the vehicle is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile accessories, and specifically relates to an automobile suspension balance arm. BACKGROUND

[0002] In the automobile suspension system, the balance arm is a key component connecting the suspension and the balance lever joint part, and its main function is to transmit the force of the automobile suspension and the balance lever and to suppress the rolling of the vehicle body. At present, when connecting the balance arm and the balance shaft, in order to prevent soil and sewage from entering the interior during the later use process and affecting the use of the structural assembly, a corresponding sealing element such as a sealing gasket or a sealing ring is generally provided. However, during daily use, the sealing gasket and the sealing ring will rub against the balance arm and the balance shaft, causing wear and aging and affecting the sealing effect. In addition, after the balance shaft and the balance arm are assembled, friction and wear will occur between them, affecting the service life of the structure. Moreover, when connecting and assembling the balance arm and the balance shaft, it is inconvenient to quickly achieve precise positioning and connection, which can easily cause the connection to loosen during the vehicle driving process under the action of external forces such as bumps and vibrations, affecting the transmission effect of the balance arm force and thus reducing the control stability and safety of the vehicle.

[0003] In view of this, we propose an automobile suspension balance arm. CONTENT OF THE UTILITY MODEL

[0004] In view of the above-mentioned shortcomings of the prior art, the utility model provides an automobile suspension balance arm, which can effectively solve the problem of friction and wear between the sealing gasket, the sealing ring, the balance arm and the balance shaft during the use of the prior art, affecting the sealing effect and the service life, and the problem of inconvenient precise positioning and connection when connecting the balance arm and the balance shaft, and the problem of looseness during daily use, affecting stability and safety.

[0005] To achieve the above-mentioned purposes, the utility model is implemented by the following technical solutions:

[0006] The utility model provides an automobile suspension balance arm, which comprises a balance arm and a balance shaft arranged on the balance arm.

[0007] The surface of the balance shaft is provided with two groups of annular grooves, the inner cavity side wall of the annular groove is fixedly connected with an oil storage bag, and the side of the two groups of oil storage bags away from each other is provided with a sealing assembly connected with the balance shaft.

[0008] Among them, the balance arm and the balance shaft are provided with a positioning assembly for connecting the balance arm and the balance shaft.

[0009] Further, the sealing assembly comprises two groups of elastic sealing gaskets arranged on the side away from each other of the two groups of oil storage bags, and the surface of the two groups of elastic sealing gaskets is fixedly connected with a sealing sleeve.

[0010] The surface of the balance shaft is provided with two groups of thread grooves matched with the thread of the inner cavity side wall of the sealing sleeve.

[0011] Further, the positioning assembly comprises a through groove provided on the surface of the balance arm, and the inner cavity side wall of the through groove is fixedly connected with two groups of symmetrically distributed positioning protrusions.

[0012] Further, the surface of the balance shaft is provided with two groups of positioning grooves matched with the positioning protrusions.

[0013] Further, the positioning assembly further comprises a positioning hole two provided on the top and the bottom of the balance arm, and the surface of the balance shaft is provided with two groups of positioning holes one corresponding to the positioning hole two.

[0014] Further, the inner cavity side wall of the positioning hole one and the positioning hole two is inserted with a positioning rod, and the end of the positioning rod away from the balance shaft is fixedly connected with a screw rod.

[0015] Compared with the known prior art, the technical scheme of the utility model has the following beneficial effects:

[0016] The utility model discloses a positioning protrusion and positioning groove are matched with the positioning connection of positioning rod and positioning hole, make the connection of balance arm and balance shaft more stable, can better bear various external forces in the vehicle driving process, guarantee the stable transmission of force, improve the control stability and security of vehicle, and the elastic sealing washer and sealing sleeve in the sealing assembly are closely matched, and the connecting part of balance arm and balance shaft is sealed, prevents the impurity such as sand, moisture from entering, avoids that component corrosion and wear aggravate, has improved the reliability of balance arm, simultaneously, oil storage bag is extruded in the sealing assembly installation process, and automatic release lubricant reaches the friction part, realizes timely lubrication, effectively reduces the friction loss between balance arm and balance shaft and sealing assembly, prolongs the service life of balance arm, and the maintenance cost of vehicle is reduced. ACCURACY OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will be briefly introduced to the drawing needed to be used in the embodiment or prior art description. Obviously, the drawing in the following description is only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creating creative labor.

[0018] Figure 1 It is the first visual angle structure schematic drawing of the utility model;

[0019] Figure 2 It is the balance arm and balance shaft and related assembly dismounting structure schematic drawing of the utility model;

[0020] Figure 3 Figure 1 is a schematic diagram of the balance shaft and oil storage bag dismounting structure of the utility model.

[0021] The reference signs in the figure respectively represent: 1, balance arm; 2, balance shaft; 3, sealing sleeve; 4, screw rod; 5, positioning rod; 6, positioning hole one; 7, positioning hole two; 8, elastic sealing washer; 9, through groove; 10, positioning protrusion; 11, positioning groove; 12, screw groove; 13, annular groove; 14, oil storage bag. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] The utility model will be further described below in combination with the embodiments.

[0024] A balance arm of automobile suspension, including balance arm 1, and set up on balance arm 1 balance shaft 2, the surface of balance shaft 2 is provided with two groups of annular grooves 13, the inner cavity side wall of annular groove 13 is fixedly connected with oil storage bag 14, and the side away from each other of two groups of oil storage bags 14 is provided with the sealing assembly connected with balance shaft 2, wherein, balance arm 1 and balance shaft 2 are provided with the positioning assembly for connecting between balance arm 1 and balance shaft 2;

[0025] Specifically, when assembling balance arm 1 and balance shaft 2, the positioning assembly can be used to quickly position balance arm 1 and balance shaft 2, then the corresponding nut and other corresponding fixing members are used to connect and fix the two, and the sealing assembly is used to seal the connection between balance arm 1 and balance shaft 2. When the sealing assembly is sealed, the oil storage bag 14 in the annular groove 13 can be extruded. When extruded, the lubricant stored in the oil storage bag 14 will be extruded and overflow to the friction parts of balance arm 1, balance shaft 2 and the sealing assembly, so as to supplement lubrication in time and reduce wear;

[0026] Specifically, the sealing assembly includes two groups of elastic sealing washers 8 arranged on the sides away from each other of the two groups of oil storage bags 14, and the surface of the two groups of elastic sealing washers 8 is fixedly connected with the sealing sleeve 3. The surface of the balance shaft 2 is provided with two groups of screw grooves 12 threadedly matched with the inner cavity side wall of the sealing sleeve 3.

[0027] Specifically, the sealing sleeve 3 can be quickly fixed on the balance shaft 2 through the threaded groove 12 on the balance shaft 2, so that the elastic sealing gasket 8 can seal the connection between the balance arm 1 and the balance shaft 2, and when the sealing sleeve 3 is selected, the elastic sealing gasket 8 can extrude the oil storage bag 14;

[0028] Further, the positioning assembly includes the through groove 9 on the surface of the balance arm 1, the inner cavity side wall of the through groove 9 is fixedly connected with two groups of symmetrically distributed positioning protrusions 10, the surface of the balance shaft 2 is provided with two groups of positioning grooves 11 matched with the positioning protrusions 10, the positioning assembly further includes the positioning holes two 7 on the top and the bottom of the balance arm 1, and the two groups of positioning holes one 6 on the surface of the balance shaft 2 corresponding to the positioning holes two 7, the inner cavity side wall of the positioning holes one 6 and the positioning holes two 7 is inserted with the positioning rod 5, and the end of the positioning rod 5 away from the balance shaft 2 is fixedly connected with the screw rod 4;

[0029] Specifically, during assembly, the positioning grooves 11 on the surface of the balance shaft 2 are aligned with the positioning protrusions 10 in the through groove 9, so that the positioning protrusions 10 are ready to be clamped into the positioning grooves 11, so that the positioning holes two 7 on the balance shaft 2 and the positioning holes one 6 on the balance arm 1 are aligned, then the positioning rod 5 can be inserted into the positioning holes one 6 and the positioning holes two 7, and then the screw rod 4 on the positioning rod 5 can be positioned with the nut, thereby fixing the connection between the balance arm 1 and the balance shaft 2.

[0030] The utility model discloses a working principle: when installing the automobile suspension balance arm 1, the balance axle 2 is moved to the balance arm 1 nearby, and the positioning recess 11 on the surface of balance axle 2 is accurately aligned with the positioning boss 10 in the balance arm 1 through groove 9, because the positioning boss 10 is symmetrical distribution, and the positioning recess 11 is accurately matched with it, when both fit, can ensure that the balance axle 2 is initially fixed in the accurate position on the balance arm 1 in horizontal direction, and the displacement and rotation of balance axle 2 on the horizontal plane are limited, this step realizes the preliminary coarse positioning, after preliminary positioning is completed, the positioning hole one 6 on balance axle 2 and the positioning hole two 7 on balance arm 1 will be naturally aligned, positioning rod 5 is inserted into the positioning hole one 6 and the positioning hole two 7 at this moment, and positioning rod 5 plays the role of further accurate constraint balance arm 1 and balance axle 2 relative position, prevents the displacement of both in axial direction, and the one end of positioning rod 5 away from balance axle 2 is fixedly connected with screw rod 4, and screw rod 4 is cooperated with nut, makes the connection between balance arm 1 and balance axle 2 more closely firm by tightening nut, completes the preliminary fixation of both, and then installs sealing assembly, and the inner cavity side wall of sealing sleeve 3 in sealing assembly is threadedly connected with the thread groove 12 set up on the surface of balance axle 2, when installing sealing sleeve 3, with rotating sealing sleeve 3, it is gradually screwed on balance axle 2, and the elastic sealing washer 8 connected with sealing sleeve 3 will gradually approach and extrude storage oil bag 14, because the elastic sealing washer 8 has certain elasticity, when being pushed by sealing sleeve 3, will take place elastic deformation, thereby the uniform extrusion pressure is applied to storage oil bag 14, with sealing sleeve 3 constantly tightening, the extrusion pressure that storage oil bag 14 receives continues to increase, and the lubricant stored in storage oil bag 14 will be extruded from storage oil bag 14 under the pressure action, because storage oil bag 14 is located in annular groove 13, and is close to the connecting part of balance arm 1 and balance axle 2, the extruded lubricant will overflow to the connecting gap of balance arm 1 and balance axle 2, and the contact friction part of sealing assembly, and these lubricants form an oil film on the friction surface, reduce the friction coefficient between parts, reduce the heat and wear due to friction, play the role of timely replenishing lubrication and reducing wear, in the vehicle driving process, the working environment of automobile suspension balance arm 1 is complex and changeable, when the left and right wheels of vehicle drive on different road bumps or holes, cause the horizontal height of left and right wheels to be different, the structure of balance arm 1 and balance axle 2 can be subjected to torsional force, because balance arm 1 and balance axle 2 are stably connected through positioning assembly and sealing assembly, they can work as a whole, balance arm 1 twists under the action of torsional force, and balance axle 2 also produces corresponding torsional change, and the anti-tilt resistance is generated to inhibit the vehicle body rolling, guarantee the stability of vehicle driving, in the whole working process, positioning assembly keeps the relative position of balance arm 1 and balance axle 2 stable, and sealing assembly continuously plays the sealing role, prevents the impurities such as silt and water from entering the connecting part, and storage oil bag 14 will be extruded to supplement lubricant intermittently under the vibration of vehicle driving, ensure the good lubrication state between parts,To maintain the efficient working performance of counterweight arm 1.

[0031] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A car suspension balance arm, characterized in that, include: Balance arm (1), and balance shaft (2) disposed on balance arm (1); Two sets of annular grooves (13) are provided on the surface of the balance shaft (2). An oil reservoir (14) is fixedly connected to the inner wall of the annular groove (13). A sealing assembly connected to the balance shaft (2) is provided on the side of the two sets of oil reservoirs (14) that are far apart from each other. The balance arm (1) and the balance shaft (2) are provided with positioning components for connecting the balance arm (1) and the balance shaft (2).

2. The automobile suspension balance arm according to claim 1, characterized in that, The sealing assembly includes two sets of oil reservoirs (14) with elastic sealing gaskets (8) disposed on opposite sides of each other, and sealing sleeves (3) are fixedly connected to the surfaces of the two sets of elastic sealing gaskets (8). Among them, the surface of the balance shaft (2) is provided with two sets of threaded grooves (12) that are threaded to the inner cavity side wall of the sealing sleeve (3).

3. The automobile suspension balance arm according to claim 1, characterized in that, The positioning component includes a through groove (9) on the surface of the balance arm (1), and two sets of symmetrically distributed positioning protrusions (10) are fixedly connected to the inner wall of the through groove (9).

4. A car suspension balance arm according to claim 3, characterized in that, The surface of the balance shaft (2) is provided with two sets of positioning grooves (11) that engage with the positioning protrusions (10).

5. A car suspension balance arm according to claim 4, characterized in that, The positioning assembly also includes positioning holes 2 (7) opened at the top and bottom of the balance arm (1), and two sets of positioning holes 1 (6) opened on the surface of the balance shaft (2) corresponding to positioning holes 2 (7).

6. A car suspension balance arm according to claim 5, characterized in that, Positioning rods (5) are inserted into the inner walls of positioning holes 1 (6) and 2 (7), and a screw (4) is fixedly connected to the end of the positioning rod (5) away from the balance shaft (2).

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