CN2806213Y - Heavy-duty truck balancing suspension-balancing shaft - Google Patents

Abstract

The utility model relates to a heavy-duty truck balancing suspension, namely, a balancing shaft which belongs to an elastic suspension for automobiles. The utility model is characterized in that a connecting shaft is an integral type long shaft pipe, and is made of a seamless steel pipe; a left and a right supporting shafts are two step type stepped shafts which are different in the thickness of shaft diameter; the shaft sections with small shaft diameter of the left and the right supporting shafts are correspondingly arranged on a left and a right balancing shaft brackets; the peripheries of the shaft sections with small shaft diameter of the left and the right supporting shafts are provided with radial bevel grooves, and the left and the right balancing shaft brackets are provided with circular through holes; the left and the right supporting shafts are fixed by wedge pins among the radial bevel grooves and the circular through holes. The left and the right supporting shafts and a left and a right plate spring rotating hubs are conveniently assembled and disassembled by turning nuts at one end of each of the wedge pins, and lubricant paths of the shaft sections of the left and the right supporting shafts are additionally provided with safety valves. As a result, the utility model has the advantages structure simplification, light self weight, safe use, fast disassembly and assembly, convenient maintenance and labor intensity reduction of workers.

Description

Heavy motor vehicle balance suspension---balance shaft

Technical field

The utility model belongs to the automobile resilient suspension, especially relates to a kind of resilient suspension that is used for the rigidity axletree of a plurality of wheels.

Background technology

The balance shaft of existing heavy balance suspension, adapter shaft between its left and right balance shaft support, the arc forging and casting of the employing that has, weight is big, processed complex, maintenance difficult, the employing that has is at the real axis joint in the two ends of adapter shaft welding band torsion bar hole, is installed in the bottom of left and right balance shaft support with supporting plate, and the real axis joint is subjected to the effect of torsion bar to become stressed projecting shaft, fracture easily, lack and increased maintenance capacity service life, so the balance shaft complex structure of the existing heavy motor vehicle balance suspension of using always, quality is big, the maintenance and repair difficulty, labor strength is big.

Summary of the invention

The purpose of this utility model provides a kind of heavy motor vehicle balance suspension---balance shaft, makes its designs simplification, and simplified manufacturing process alleviates deadweight, and installing/dismounting is simple, quick, and maintenance and repair are convenient, reduce working strength of workers effectively.

The purpose of this utility model is achieved like this: a kind of heavy motor vehicle balance suspension---balance shaft, by a left side, right balance shaft support, a left side, the right panel spring changes hub, a left side, right pivot shaft and adapter shaft are formed, wherein left, the right panel spring changes hub with left, right pivot shaft is installed in a left side respectively, the lateral surface of right balance shaft support, a left side, right pivot shaft correspondence respectively is packed in a left side, in the axis hole on right balance shaft support top, a left side, right balance shaft support then links into an integrated entity with adapter shaft, it is characterized in that on a left side, the bottom of right balance shaft support is offered a left side respectively, a bottom right axis hole and a left side, right torsion bar hole, adapter shaft is a whole long tube axle, make with solid drawn pipe, adapter shaft is installed in a left side, the left side of right balance bracket, locate in the axis hole of bottom right and with the locating dowel pin locking, a left side, right torsion bar is installed torsion bar respectively in the hole, the application force of torsion bar acts directly on a left side like this, on the right balance shaft support, adapter shaft is not only from heavy and light, and is durable and convenient with disassembling, assembling and replacing; In addition, a left side, right pivot shaft is the different two-period form step axle of diameter of axle thickness, when guaranteeing in-use performance, alleviate a left side, the weight of right pivot shaft, a left side, the little shaft part correspondence of diameter of right pivot shaft is installed in a left side, in the upper shaft hole of right balance shaft support, and on a left side, the periphery of the shaft part that the diameter of right pivot shaft is little is offered the radial groove respectively, and on a left side, offer round tube hole respectively with the cooresponding position of surface groove on the right balance shaft support, between surface groove and round tube hole, install a left side, right taper pin fixes a left side, right pivot shaft, thereby with a left side, the right panel spring changes the hub correspondence and is installed in a left side, also can be on the lateral surface of right balance shaft support respectively around a left side, right pivot shaft rotation, an as long as turn left side, the nut of right taper pin one end, just can adjust a left side easily, the degree of tightness and the dismounting of right pivot shaft, be convenient to a left side, the right panel spring changes the dismounting and the maintenance of hub, just reduces working strength of workers; In addition, the check valve that the oil leab of the thick shaft part of each setting and left and right pivot shaft communicates on the hub body of left and right leaf spring commentaries on classics hub after grease adding is full, will overflow from check valve, just can check the situation of grease adding at a glance; In addition, bearing cap shim is set between left and right pivot shaft and left and right sides end cap can rotates independently, reduce noise and wearing and tearing to guarantee width between centers and left and right leaf spring commentaries on classics hub between the left and right leaf spring.

Heavy motor vehicle balance suspension---the balance shaft that the utility model is carried, designs simplification, safe and reliable, the dismounting simple and fast, easy to maintenance, alleviated labor strength.

Below in conjunction with drawings and Examples to the utility model carry the heavy motor vehicle balance suspension---balance shaft is further described.

Description of drawings

Fig. 1 is heavy motor vehicle balance suspension---the main cross-sectional schematic of balance shaft that heavy motor vehicle that the utility model proposes is used.

Fig. 2 be among Fig. 1 B to view.

Among Fig. 1: 1, left end cap 2, left leaf spring change hub 3, left pivot shaft 4, left balance shaft support 5, left taper pin 6, adapter shaft 7, right balance shaft support 8, right panel spring commentaries on classics hub 9, right pivot shaft 10, oil leab 11, bearing cap shim 12, right taper pin 13, surface groove 14, right end cap 15, right torsion bar hole 16, check valve 17, left torsion bar hole 18, locating dowel pin

Among Fig. 2: 19, nut 20, round tube hole

The specific embodiment

From Fig. 1, among Fig. 2 as can be seen: a kind of heavy motor vehicle balance suspension---balance shaft, by a left side, right balance shaft support 4,7, a left side, the right panel spring changes hub 2,8, a left side, right pivot shaft 3,9 and adapter shaft 6 form, wherein left, the right panel spring changes hub 2, a 8 usefulness left side, right pivot shaft 3,9 are installed in a left side respectively, right balance shaft support 4, on 7 the lateral surface, a left side, right pivot shaft 3,9 respectively correspondence be packed in a left side, right balance shaft support 4, in the axis hole on 7 tops, a left side, right balance shaft support 4,7 link into an integrated entity with adapter shaft 6, it is characterized in that on a left side, right balance shaft support 4,7 bottom is offered a left side respectively, a bottom right axis hole and a left side, right torsion bar hole 17,15, adapter shaft 6 is a whole long tube axle, make with solid drawn pipe, adapter shaft 6 is installed in a left side, right balance shaft support 4, a left side of 7, locate in the axis hole of bottom right and with locating dowel pin 18 lockings, a left side, right torsion bar hole 17, torsion bar is installed respectively in 15, the application force of torsion bar acts directly on a left side like this, right balance shaft support 4, on 7, adapter shaft 6 is not only from heavy and light, and durable and disassembling, assembling and replacing makes things convenient for; In addition, a left side, right pivot shaft 3,9 are the different two-period form step axle of diameter of axle thickness, when guaranteeing in-use performance, alleviate a left side, right pivot shaft 3,9 weight, a left side, right pivot shaft 3, the shaft part correspondence that 9 diameter is little is installed in a left side, right balance shaft support 4, in 7 the upper shaft hole, right pivot shaft 3, the periphery of the shaft part that 9 diameter is little is offered radial groove 13 respectively, and on a left side, right balance shaft support 4, offer round tube hole 20 respectively with surface groove 13 cooresponding positions on 7, between surface groove 13 and round tube hole 20, install a left side, right taper pin 5,12 fix a left side, right pivot shaft 3,9, thereby with a left side, the right panel spring changes hub 2,8 correspondences are installed in a left side, right balance shaft support 4, also can be on 7 the lateral surface respectively around a left side, right pivot shaft 3,9 rotations, an as long as turn left side, right taper pin 5, the nut 19 of 12 1 ends, just can adjust a left side easily, right pivot shaft 3,9 degree of tightness and dismounting, be convenient to a left side, the right panel spring changes hub 2,8 dismounting and maintenance just reduce working strength of workers; In addition, the check valve 16 that each setting communicates with the oil leab 10 of the thick shaft part of left and right pivot shaft 3,9 on the hub body of left and right leaf spring commentaries on classics hub 2,8, after grease adding is full, will from check valve 16, overflow, just can check the situation of grease adding at a glance; In addition, the corresponding bearing cap shim 11 that is provided with can rotate independently to guarantee width between centers and left and right leaf spring commentaries on classics hub 2,8 between the left and right leaf spring between left and right pivot shaft 3,9 and left and right end cap 1,14, reduces noise and wearing and tearing.

Claims (1)

1, a kind of heavy motor vehicle balance suspension---balance shaft changes hub (2), (8), left and right pivot shaft (3), (9) and adapter shaft (6) by left and right balance shaft support (4), (7), left and right leaf spring and forms, and it is characterized in that:

A, offer left and right lower shaft hole and left and right torsion bar hole (17), (15) respectively in the bottom of left and right balance shaft support (4), (7), adapter shaft (6) is a whole long tube axle, make with solid drawn pipe, adapter shaft (6) is installed in the left and right lower shaft hole of left and right balance shaft support (4), (7) and with locating dowel pin (18) locking location, in left and right torsion bar hole (17), (15) torsion bar is installed respectively;

B, a left side, right pivot shaft (3), (9) be the different two-period form step axle of diameter of axle thickness, a left side, right pivot shaft (3), (9) the shaft part correspondence that diameter is little is installed in a left side, right balance shaft support (4), (7) in the upper shaft hole, and on a left side, right pivot shaft (3), the periphery of the shaft part that diameter (9) is little is offered radial groove (13) respectively, and on a left side, right balance shaft support (4), (7) round tube hole (20) is offered at the last and cooresponding position of surface groove (13) respectively, installs a left side between surface groove (13) and round tube hole (20), right taper pin (5), (12) fix a left side, right pivot shaft (3), (9);

C, the check valve (16) that each setting communicates with the oil leab (10) of the thick shaft part of left and right pivot shaft (3), (9) on the hub body of left and right leaf spring commentaries on classics hub (2), (8), correspondence is provided with bearing cap shim (11) between left and right pivot shaft (3), (9) and left and right sides end cap (1), (14).