CN212311897U

CN212311897U - Automobile ball pin dismounting tool

Info

Publication number: CN212311897U
Application number: CN202020551853.5U
Authority: CN
Inventors: 纪德杰; 秦剑; 王聪; 姜维; 何拥军
Original assignee: Dongfeng Off Road Vehicle Co Ltd
Current assignee: Dongfeng Off Road Vehicle Co Ltd
Priority date: 2020-04-15
Filing date: 2020-04-15
Publication date: 2021-01-08
Anticipated expiration: 2030-04-15

Abstract

The utility model discloses a car bulb round pin extracting tool belongs to automobile manufacturing technical field. This extracting tool is for solving the difficult detached technical problem of taper hole and bulb round pin awl post of wheel reduction gear, adopts chucking spare to fix car wheel reduction gear knuckle arm chucking, borrows the rotation of ejector pin in the nut again and is close to the round pin axle head face of contact bulb round pin, ejector pin top roof pressure bulb round pin axle, and the bulb round pin axle produces decurrent reaction force to chucking spare, and chucking spare drives wheel reduction gear and moves down to realize the separation of bulb round pin and car wheel reduction gear. The disassembling tool can efficiently and conveniently separate the ball pin from the hub reduction gear on the premise of not damaging the ball pin and the hub reduction gear.

Description

Automobile ball pin dismounting tool

Technical Field

The utility model relates to a disassembling tool belongs to automobile manufacturing technical field, specifically relates to an automobile ball head pin disassembling tool.

Background

Generally, an automobile wheel reduction gear is a suspension system connected to an automobile body through a ball pin, and the wheel reduction gear is fixedly connected with a ball pin taper column through a taper hole in an interference fit mode.

If suspension system breaks down, often need lift off the wheel reduction gear during maintenance, but the cooperation of wheel reduction gear and bulb round pin generally adopts taper hole interference fit, the mode that the slotted nut compresses tightly is connected, the phenomenon of dying can appear stinging in the installation back taper hole fitting surface, the back is dismantled to the fastening nut who connects wheel reduction gear and bulb round pin, the very big dismantlement of separating force between wheel reduction gear and the bulb round pin is difficult, often need the mode that the copper hammer strikeed reducer case, make wheel reduction gear and bulb round pin not hard up, nevertheless not only dismantle inefficiency like this, easily lead to the casing to warp, and damage bulb round pin body and wheel reduction assembly easily.

Disclosure of Invention

In order to solve the technical problem, the utility model discloses an automobile ball round pin extracting tool, this extracting tool can be high-efficient and convenient with ball round pin and wheel reduction gear separation under the prerequisite that does not damage ball round pin and wheel reduction gear.

In order to realize the above-mentioned purpose, the utility model discloses a car bulb round pin extracting tool, extracting tool is used for applying external force and the other end connection to the bulb round pin including chucking spare and the one end that is used for connecting car wheel reduction gear pitch arm the ejector pin of chucking spare, and fixed the setting is in nut on the chucking spare, the ejector pin lateral surface be equipped with nut medial surface thread matched with external screw thread. Preferably, the nut is a Q340B20 nut, and the Q340B20 nut is welded to the retainer.

Further, the chucking spare includes the arc side, C shape top surface is connected to the one end of arc side, the other end with arc side has semi-circular bottom surface through the arc surface transition fit, be equipped with the through-hole that supplies the ejector pin to pass on the semi-circular bottom surface.

Further, the central axis of the through hole is in the same straight line with the central axis of the nut.

Furthermore, the edge of the arc-shaped side surface is provided with a notch, and the opening direction of the notch is vertical to the length direction of the ejector rod.

Furthermore, the number of the notches is two, and the notches are symmetrically distributed on two sides of the ejector rod.

Further, the opening direction of the C-shaped top surface is consistent with the opening direction of the notch.

Further, a handle is arranged at the tail end of the bottom end of the ejector rod.

Further, the nut is located on the outer side of the semicircular bottom surface.

Has the advantages that:

the utility model discloses a extracting tool utilizes the jackscrew principle, does not damage bulb round pin and wheel reduction gear at the dismantlement in-process, and whole dismantlement process is simple and convenient controllable, labour saving and time saving.

Drawings

Fig. 1 is a schematic structural view of a disassembling tool designed by the present invention;

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a top view of FIG. 2;

FIG. 4 is a cross-sectional view taken along line B-B of FIG. 2;

FIG. 5 is a schematic perspective view of another position of FIG. 1;

FIG. 6 is a schematic view of the connection structure between the dismounting tool of FIG. 1 and the wheel hub reduction gear of the vehicle;

FIG. 7 is a cross-sectional view of FIG. 6;

wherein, the numbers in the drawings are as follows:

a disassembling tool 1 (wherein, a clamping piece 1.1 (wherein, an arc side surface 1.11, a semi-circular bottom surface 1.12, a through hole 1.13, a gap 1.14, a C-shaped top surface 1.15), a mandril 1.2 (wherein, an external thread 1.21, a handle 1.22) and a nut 1.3);

the automobile hub reduction gear knuckle arm 2;

a ball stud 3;

a ball head pin shaft 4.

Detailed Description

The utility model discloses a extracting tool for separating military vehicle wheel reduction gear and bulb round pin joint relation, as shown in fig. 7, bulb round pin axle 4 of bulb round pin 3 is connected and the card is established in car wheel reduction gear festival arm 2, if directly dismantle, arouse car wheel reduction gear festival arm 2 or bulb round pin axle 4's deformation easily, consequently the utility model discloses an extracting tool.

As shown in fig. 1 and 7, the disassembling tool 1 comprises a clamping piece 1.1 used for connecting a knuckle arm 2 of a wheel hub reduction gear of an automobile, a mandril 1.2 with one end used for applying external force to a ball pin 3 and the other end connected with the clamping piece 1.1, and a nut 1.3 fixedly arranged on the clamping piece 1.1, wherein the outer side surface of the mandril 1.2 is provided with an external thread 1.21 matched with the internal side surface of the nut 1.3 in a threaded manner. Wherein, rely on chucking spare 1.1 to carry out the chucking fixedly to car wheel reduction gear, ejector pin 1.2 rotates in the nut and takes place vertical upwards direction's removal and final ejector pin 1.2's top is close to and contacts the terminal surface of ball stud pin 4 of ball stud pin 3, at the roof pressure in-process, ejector pin 1.2 keeps motionless, because ball stud pin 4 produces vertical decurrent reaction force to breach 1.14 of chucking spare 1.1, breach 1.14 drives wheel reduction gear casing and moves down, finally realize wheel reduction gear and ball stud pin 3's separation.

Specifically, as can be seen from fig. 1, 2, 3, 4 and 5, the clamping member 1.1 includes an arc-shaped side surface 1.11, one end of the arc-shaped side surface 1.11 is connected to a C-shaped top surface 1.15, the other end of the arc-shaped side surface and the arc-shaped side surface 1.11 are in transition fit with a semicircular bottom surface 1.12 through an arc surface, a through hole 1.13 for the ejector rod 1.2 to pass through is formed in the semicircular bottom surface 1.12, and the central axis of the through hole 1.13 and the central axis of the nut 1.3 are on the same straight line. For the specific position of the nut 1.3, it can be located inside the semicircular bottom surface 1.12, and also can be located outside the semicircular bottom surface 1.12, and this embodiment prefers that it is located outside, but the position of the inside is also within the protection scope of the present invention. It is also preferred that the nut is a Q340B20 nut and that the Q340B20 nut is welded to the outside of the semi-circular bottom surface 1.12 of the clip 1.1.

In addition, the bottom end of the ejector rod 1.2 is also provided with a handle 1.22, and the handle 1.22 is convenient for a human hand or a manipulator to operate.

For the better realization chucking spare 1.1 and the car wheel reduction gear festival between the arm 2 fixed, the utility model discloses it is preferred arc side 1.1's border is equipped with breach 1.14, breach 1.14's opening direction keeps perpendicular with ejector pin 1.2's length direction, simultaneously breach 1.14 is two, and the symmetric distribution is on ejector pin 1.2 both sides, and C type top surface 1.15's opening direction keeps unanimous with breach 1.14's opening direction.

Combine fig. 6, fig. 7 can know, use the utility model discloses a during extracting tool, two breach 1.14 with chucking spare 1.1 and the cooperation of car wheel reduction gear knuckle arm 2 make car wheel reduction gear knuckle arm 2 block establish in two breach 1.14, ball round pin 3 stretches out chucking spare 1.1's C shape top surface 1.15 this moment, make ejector pin 1.2 take place the vertical removal of direction that makes progress and the terminal surface that the top of final ejector pin 1.2 is close to and contacts ball round pin axle 4 through rotating ejector pin 1.2, at the ascending roof pressure in-process of ejector pin 1.2, ejector pin 1.2 keeps motionless, because ball round pin axle 4 produces vertical decurrent reaction force to chucking spare 1.1, chucking spare 1.1 drives wheel reduction gear casing downstream, finally realize the separation of wheel reduction gear and ball round pin.

In the dismounting process, the wheel-side speed reducer moves synchronously along with the clamping piece, the stress is balanced, the whole dismounting process is simple, convenient and controllable, the damage of the ball pin dust cover and the deformation or damage of the wheel-side speed reducer are avoided, time and labor are saved, and the cost is saved.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, the meaning of "more than one" includes 1.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above examples are merely preferred examples and are not intended to limit the embodiments of the present invention. In addition to the above embodiments, the present invention has other embodiments. All the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope claimed by the present invention.

Claims

1. The utility model provides an automobile ball round pin extracting tool which characterized in that: extracting tool (1) is used for applying external force and the other end is connected including chucking spare (1.1) and the one end that is used for connecting car wheel reduction gear festival arm (2) to bulb round pin (3) ejector pin (1.2) of chucking spare (1.1), and fixed the setting nut (1.3) on chucking spare (1.1), ejector pin (1.2) lateral surface be equipped with nut (1.3) medial surface thread fit's external screw thread (1.21).

2. The automotive ball stud removal tool of claim 1, wherein: chucking spare (1.1) includes arc side (1.11), C shape top surface (1.15) is connected to the one end of arc side (1.11), the other end with arc side (1.11) have semi-circular bottom surface (1.12) through the arc surface transition fit, be equipped with through-hole (1.13) that supply ejector pin (1.2) to pass on semi-circular bottom surface (1.12).

3. The automotive ball stud removal tool of claim 2, wherein: the central axis of the through hole (1.13) and the central axis of the nut (1.3) are on the same straight line.

4. The automobile ball stud disassembly tool of claim 2 or 3, wherein: the edge of the arc-shaped side face (1.11) is provided with a notch (1.14), and the opening direction of the notch (1.14) is vertical to the length direction of the ejector rod (1.2).

5. The automobile ball stud remover of claim 4, wherein: the two notches (1.14) are symmetrically distributed on two sides of the ejector rod (1.2).

6. The automobile ball stud remover of claim 4, wherein: the opening direction of the C-shaped top surface (1.15) is consistent with the opening direction of the notch (1.14).

7. The automotive ball stud remover according to claim 1, 2, 3 or 5, wherein: the tail end of the bottom end of the ejector rod (1.2) is provided with a handle (1.22).

8. The automotive ball stud remover according to claim 1, 2, 3 or 5, wherein: the nut (1.3) is positioned outside the semicircular bottom surface (1.12).