CN219432382U - RW worm of adjusting arm - Google Patents

Abstract

The utility model provides an adjusting arm RW worm, which relates to the worm field, and comprises a RW worm body, wherein a spline shaft is arranged below the RW worm body, the RW worm body and the spline shaft are detachably connected through a connecting device in the middle.

Description

RW worm of adjusting arm

Technical Field

The utility model relates to the field of worms, in particular to an adjusting arm RW worm.

Background

Brake adjusting arms are an important component of a vehicle braking system, and prior art brake adjusting arms are typically assembled from housing, worm gear, and bushing components. The existing automatic brake clearance adjusting arm basically adopts a worm and gear type structure, a main arm of the automatic brake clearance adjusting arm drives a worm through a set of complex compensation mechanism, and then the worm is pushed by the worm to screw in, so that the brake clearance increase (namely the brake cam shaft rotation amplitude increase) caused by the abrasion of a brake is automatically compensated.

When the existing worm is driven, in order to enable the existing worm to be more stable, the existing worm is generally driven through a spline shaft, most of the existing worm is welded or connected through a plurality of bolts when the existing worm is connected with the spline shaft, the worm and the spline shaft cannot be detached independently to be overhauled in a welding mode, and the connection mode of the plurality of bolts is troublesome to detach.

Therefore, it is necessary to provide a new adjusting arm RW worm to solve the above technical problems.

Disclosure of Invention

In order to solve the above technical problems, the present utility model provides an adjusting arm RW worm.

The utility model provides an adjusting arm RW worm which comprises a RW worm body, wherein a spline shaft is arranged below the RW worm body, the RW worm body and the spline shaft are detachably connected through a middle connecting device, the connecting device comprises a mounting column, a mounting ring, a limiting component and a clamping component, the bottom of the mounting column is fixedly arranged at the top of the spline shaft, limiting blocks are fixedly connected to two opposite side walls of the mounting column, the top of the mounting ring is fixedly connected to the bottom of the RW worm body, two opposite insertion holes are formed in the upper side wall of the mounting ring, the limiting component is movably connected to the outer surface of the mounting ring, the limiting component is movably inserted into the two insertion holes, and the clamping component for clamping the limiting block is fixedly arranged on the inner wall, close to the bottom, of the mounting ring.

Preferably, the clamping assembly comprises a limiting ring, the outer surface of the limiting ring is fixedly connected to the inner wall of the mounting ring adjacent to the bottom, two opposite slots and two opposite limiting grooves are formed in the limiting ring, the two limiting blocks are respectively movably inserted into the two slots, and the two limiting blocks are respectively clamped in the two limiting grooves.

Preferably, the limiting component comprises a movable ring, the inner wall of the movable ring is connected with the outer surface of the mounting ring in a threaded manner, the bottom of the movable ring is movably connected with a connecting ring, two ends of the bottom of the connecting ring are fixedly connected with connecting frames, the two connecting frames are oppositely arranged, and the two connecting frames are respectively movably inserted into the two jacks.

Preferably, the limiting assembly further comprises a pressing plate, the pressing plate is of a cylindrical structure, the pressing plate is arranged on the inner side of the mounting ring, and two ends of the pressing plate are fixedly connected to one ends of the two connecting frames respectively.

Preferably, an anti-slip pad is arranged at the bottom of the pressing plate and is fixedly connected with the pressing plate.

Preferably, the number of teeth of the spline shaft is 15, and the pressure angle is 30 degrees.

Compared with the related art, the RW worm of the adjusting arm has the following beneficial effects:

through mutually supporting of erection column, collar, stopper, spacing subassembly and block subassembly, interlude erection column and stopper at spline shaft top respectively in collar and block subassembly, then rotate 90 degrees with the spline shaft, reverse removal spline shaft for in two stoppers block respectively into the block subassembly, then, accomplish the spacing work to the erection column through spacing subassembly, can accomplish the erection work of spline shaft and RW worm body from this, the device is more convenient than traditional RW worm body and spline shaft's connected mode, the operation is got up.

Drawings

FIG. 1 is a schematic diagram 1 of a structure provided by the present utility model;

FIG. 2 is a schematic diagram of the structure of FIG. 2 according to the present utility model;

FIG. 3 is an exploded view of the structure shown in FIG. 2;

FIG. 4 is a schematic view of the mounting ring, the limiting assembly and the engaging assembly shown in FIG. 3;

fig. 5 is a schematic structural view of the RW worm body and the mounting ring shown in fig. 3;

FIG. 6 is a schematic view of the spacing assembly shown in FIG. 3;

FIG. 7 is a schematic structural view of the engaging assembly shown in FIG. 3;

fig. 8 is a schematic view of a transverse arrangement of the RW worm body and the spline shaft shown in fig. 3;

fig. 9 is a partial cross-sectional view 1 of the RW worm body shown in fig. 2;

FIG. 10 is a partial cross-sectional view 2 of the RW worm body shown in FIG. 2;

fig. 11 is a cross-sectional view of the spline shaft shown in fig. 2.

Reference numerals in the drawings: 1. a RW worm body; 2. a spline shaft; 3. a mounting column; 4. a limiting block; 5. a mounting ring; 6. a jack; 7. a limiting ring; 8. a slot; 9. a limit groove; 10. a movable ring; 11. a connecting ring; 12. a connecting frame; 13. an anti-slip pad; 14. and (5) pressing plates.

Detailed Description

The utility model will be further described with reference to the drawings and embodiments.

Referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8, fig. 9, fig. 10, and fig. 11 in combination, fig. 1 is a schematic structural diagram 1 provided by the present utility model; FIG. 2 is a schematic diagram of the structure of FIG. 2 according to the present utility model; FIG. 3 is an exploded view of the structure shown in FIG. 2; fig. 4 is a schematic structural view of the mounting ring 5, the limiting assembly and the engaging assembly shown in fig. 3; fig. 5 is a schematic structural view of the RW worm body 1 and the mounting ring 5 shown in fig. 3; FIG. 6 is a schematic view of the spacing assembly shown in FIG. 3; FIG. 7 is a schematic structural view of the engaging assembly shown in FIG. 3; fig. 8 is a schematic view showing a transverse arrangement of the RW worm body 1 and the spline shaft 2 shown in fig. 3; fig. 9 is a partial cross-sectional view 1 of the RW worm body 1 shown in fig. 2; fig. 10 is a partial cross-sectional view 2 of the RW worm body 1 shown in fig. 2; fig. 11 is a sectional view of the spline shaft 2 shown in fig. 2. Comprising the following steps: RW worm body 1.

In a specific implementation process, as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8, fig. 9, fig. 10 and fig. 11, the spline shaft 2 is arranged below the RW worm body 1, the number of teeth of the spline shaft 2 is 15, the pressure angle is 30 degrees, the RW worm body 1 and the spline shaft 2 are detachably connected through a middle connecting device, the connecting device comprises a mounting column 3, a mounting ring 5, a limiting component and a clamping component, the bottom of the mounting column 3 is fixedly arranged at the top of the spline shaft 2, limiting blocks 4 are fixedly connected to two opposite side walls of the mounting column 3, the top of the mounting ring 5 is fixedly connected to the bottom of the RW worm body 1, two opposite insertion holes 6 are formed in the upper side wall of the mounting ring 5, the limiting component is movably connected to the outer surface of the mounting ring 5, the limiting component is movably inserted into the two insertion holes 6, the clamping component for clamping the limiting blocks 4 is fixedly arranged on the inner wall of the mounting ring 5 adjacent to the bottom, and the two limiting blocks 2 are mutually matched through the mounting column 3, the limiting blocks 4, the limiting components and the top of the clamping component are mutually matched with each other, the two limiting blocks 2 are respectively inserted into the two spline shaft 2 through the mounting ring 4, and the two opposite side walls of the two limiting components are respectively, and the two spline shaft 2 are rotatably arranged in the spline shaft 2 and the spline shaft 2 are rotatably mounted in the spline shaft 2, and the two opposite sides of the spline shaft 2 are respectively, and the two opposite to each spline shaft 2 is rotatably connected.

Referring to fig. 7, the clamping assembly includes a limiting ring 7, the outer surface of the limiting ring 7 is fixedly connected to the inner wall of the mounting ring 5 adjacent to the bottom, two opposite slots 8 and two opposite limiting grooves 9 are formed in the limiting ring 7, two limiting blocks 4 are respectively movably inserted into the two slots 8, and the two limiting blocks 4 are respectively clamped in the two limiting grooves 9.

Referring to fig. 6, the limiting component comprises a movable ring 10, the inner wall of the movable ring 10 is in threaded connection with the outer surface of the mounting ring 5, the bottom of the movable ring 10 is movably connected with a connecting ring 11, two ends of the bottom of the connecting ring 11 are fixedly connected with connecting frames 12, the two connecting frames 12 are oppositely arranged, the two connecting frames 12 are respectively movably inserted into the two jacks 6, the limiting component further comprises a pressing plate 14, the pressing plate 14 is in a cylindrical structure, the pressing plate 14 is arranged on the inner side of the mounting ring 5, two ends of the pressing plate 14 are respectively fixedly connected with one end of the two connecting frames 12, an anti-slip pad 13 is arranged at the bottom of the pressing plate 14, the anti-slip pad 13 is fixedly connected with the pressing plate 14, and limiting work of the pressing plate 14 can be completed through the limiting component.

The working principle provided by the utility model is as follows: when the device is used, the spline shaft 2 is held by hand, the mounting column 3 and the limiting blocks 4 at the top of the spline shaft 2 are respectively inserted into the mounting ring 5 and the slot 8, after the limiting blocks 4 move through the slot 8, the spline shaft 2 is rotated by 90 degrees, at the moment, the two limiting blocks 4 rotate to the positions of the two limiting grooves 9, the spline shaft 2 is moved reversely, the two limiting blocks 4 respectively move into the two limiting grooves 9, then the movable ring 10 is rotated, the movable ring 10 drives the connecting ring 11 and the connecting frame 12 to move, the connecting frame 12 drives the pressing plate 14 positioned at the inner side of the mounting ring 5 to move towards the direction of the mounting column 3, finally, the anti-slip pad 13 at the bottom of the pressing plate 14 is tightly attached to the top of the mounting column 3, so that the mounting work of the spline shaft 2 and the RW worm body 1 can be completed, the two limiting blocks 4 are connected with the spline shaft 2 through the RW worm body 1, and the stability of mechanical transmission is improved.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims (6)

1. The utility model provides an adjusting arm RW worm, its characterized in that, including RW worm body (1), RW worm body (1) below is provided with spline shaft (2), and RW worm body (1) and spline shaft (2) are through middle connecting device to dismantle and are connected, connecting device includes erection column (3), collar (5), spacing subassembly and block subassembly, erection column (3) bottom fixed mounting is in spline shaft (2) top, equal fixedly connected with stopper (4) on two opposite lateral walls of erection column (3), collar (5) top fixed connection is in RW worm body (1) bottom, has seted up two relative jack (6) on the lateral wall on collar (5), spacing subassembly swing joint is in collar (5) surface, and spacing subassembly activity alternates in two jack (6), be used for block stopper (4) block subassembly fixed mounting is on the inner wall that collar (5) are close to the bottom.

2. The adjusting arm RW worm according to claim 1, wherein the clamping assembly comprises a limiting ring (7), the outer surface of the limiting ring (7) is fixedly connected to the inner wall of the mounting ring (5) adjacent to the bottom, two opposite slots (8) and two opposite limiting grooves (9) are formed in the limiting ring (7), the two limiting blocks (4) are respectively movably inserted into the two slots (8), and the two limiting blocks (4) are respectively clamped into the two limiting grooves (9).

3. The adjusting arm RW worm according to claim 1, characterized in that the limiting component comprises a movable ring (10), the inner wall of the movable ring (10) is connected to the outer surface of the mounting ring (5) in a threaded manner, the bottom of the movable ring (10) is movably connected with a connecting ring (11), two ends of the bottom of the connecting ring (11) are fixedly connected with connecting frames (12), the two connecting frames (12) are oppositely arranged, and the two connecting frames (12) are respectively movably inserted into the two insertion holes (6).

4. The adjusting arm RW worm of claim 3, wherein the limiting assembly further comprises a pressing plate (14), the pressing plate (14) is in a cylindrical structure, the pressing plate (14) is arranged on the inner side of the mounting ring (5), and two ends of the pressing plate (14) are fixedly connected to one ends of the two connecting frames (12) respectively.

5. The adjusting arm RW worm according to claim 4, characterized in that the bottom of the pressing plate (14) is provided with a non-slip pad (13), the non-slip pad (13) being fixedly connected with the pressing plate (14).

6. The adjusting arm RW worm according to claim 1, characterized in that the number of teeth of the spline shaft (2) is 15 and the pressure angle is 30 degrees.