CN211174983U

CN211174983U - Swing arm ball head

Info

Publication number: CN211174983U
Application number: CN201921591525.1U
Authority: CN
Inventors: 周士森
Original assignee: Zhejiang Deming Automobile Parts Co ltd
Current assignee: Zhejiang Deming Automobile Parts Co ltd
Priority date: 2019-09-24
Filing date: 2019-09-24
Publication date: 2020-08-04
Anticipated expiration: 2029-09-24

Abstract

A swing arm ball head is characterized by comprising a dust cover, a ball pin, a ball bowl and a ball shell, wherein the ball pin can penetrate through the dust cover, the ball pin is riveted with the ball bowl, and the ball bowl is embedded in the ball shell; the spherical shell is integrally provided with a fixed seat, the fixed seat is provided with positioning holes, screws can be assembled in the positioning holes, the number of the positioning holes is three, the positioning holes comprise a middle positioning hole and two side positioning holes, and the positioning holes are provided with reinforcing structures which comprise triangular reinforcing protrusions arranged on two sides of the middle positioning hole and circular reinforcing protrusions arranged on two sides of the side positioning hole; the device changes the internal structure of the ball head, and the pressure gasket is not arranged in the device, so that the situation that the pressure gasket is deformed and loses efficacy does not exist, and the service life is longer; the triangular reinforcing protrusion and the circular reinforcing protrusion of the device can enhance the strength of the positioning hole in the fixing seat, so that the fixing seat is not easy to break when a traffic accident happens.

Description

Swing arm ball head

Technical Field

The utility model relates to an automobile parts technical field especially relates to a swing arm bulb for connecting knuckle and control arm.

Background

The automobile swing arm bulb is the space hinge mechanism, and the space that is particularly useful for car knuckle and control arm is articulated, is the common loss piece in the car use, is equipped with the pressure gasket between the ball seat in the common swing arm bulb and the shrouding, and the pressure gasket is after long-time the use, and easy deformation inefficacy leads to the whole life of product to reduce, and ordinary swing arm bulb is when the vehicle takes place the traffic accident in addition, because of assaulting too greatly, very easy emergence fracture.

Disclosure of Invention

An object of the utility model is to provide a swing arm bulb to solve the problem that proposes among the above-mentioned background art.

In order to achieve the purpose, the technical scheme adopted by the utility model is a swing arm ball head, which comprises a dust cover, a ball pin, a ball bowl and a ball shell, wherein the ball pin is used for connecting a steering knuckle on an automobile, the dust cover is used for preventing silt from entering a part assembly gap and prolonging the service life of the swing arm ball head, the ball pin can pass through the dust cover, the ball pin is riveted with the ball bowl, and the ball bowl is embedded in the ball shell;

the integrative fixing base that is equipped with on the spherical shell, be equipped with the locating hole on the fixing base, the internal energy of locating hole assembles the screw, the locating hole has threely, including a middle locating hole and two side locating holes, be equipped with additional strengthening on the locating hole, including locating the circular enhancement arch on triangle enhancement arch on middle locating hole both sides and locating the side locating hole two sides, the triangle is strengthened protruding, the intensity of locating hole on the fixing base can be strengthened to the side locating hole, makes the device when taking place the traffic accident, and the fixing base is difficult to the fracture.

Preferably, the distance between the connecting lines of the two side positioning holes and the middle positioning hole is the same, the spherical shell is positioned on the perpendicular bisector of the connecting line of the two side positioning holes, the three points determine a plane, the fixing seat is fixed on the control arm to form a stable triangular structure, so that the spherical shell cannot move relative to the control arm, and the arrangement of the plurality of positioning holes is beneficial to dispersing the force between the spherical shell and the control arm, so that the service life of the device can be prolonged.

Preferably, still include safety cover and anticreep nut, the safety cover overlaps on the ball round pin, can be used for protecting the dust cover, and the anticreep nut is located the ball round pin outer end, can prevent that the safety cover from droing.

Preferably, the safety cover is the funnel shape of back-off, can cover the dust cover completely, avoids swing arm bulb to be crushed or warp dust cover in transportation or handling.

Preferably, the ball pin comprises a connecting section, a conical section and a ball section, wherein one end of the conical section with a small cross section is connected with the connecting section, and one end of the conical section with a large cross section is connected with the ball section;

the conical section is provided with a first concave area at the connecting position with the connecting section and the ball section, as an optimal technical scheme, the ball pin is made of alloy materials with strong impact toughness and bending resistance, and the ball section is machined by a mirror surface to ensure the matching precision of the ball pin and the ball bowl.

Preferably, the dust cover is hollow, an annular arc-shaped clamping groove is formed in the upper end of the dust cover, an annular rectangular clamping groove is formed in the lower end of the dust cover, a second sunken area is formed in the upper end of the dust cover, annular teeth are arranged on the inner wall, close to the upper end, of the dust cover, the dust cover is connected with the ball shell and then is not generally moved away, the annular rectangular clamping groove at the lower end of the dust cover is matched with the annular square clamping ring, the dust cover and the ball pin are sealed and located in a mode that the dust cover and the ball pin are likely to need to be moved away during maintenance/repair, the annular arc-shaped clamping groove at the upper end of the dust cover is matched with the annular round clamping ring, the annular square.

Preferably, a ball groove is formed in the ball bowl, a through hole is formed in the bottom of the ball groove, and maintenance personnel can add lubricating grease to the riveting position of the ball groove and the ball section conveniently due to the arrangement of the through hole.

Preferably, the radius of the ball section of the ball pin is the same as that of the ball groove, the gap between the ball section and the ball groove is controlled within 0.1mm, and as a preferred technical scheme, the contact area between the ball section and the ball groove is controlled to exceed 70 percent, so that the pull-off strength and the durability of a swing arm product after being loaded can be ensured to meet the requirements of more than 60 ten thousand times.

Preferably, the spherical shell is hollow and penetrates up and down, the bottom of the spherical shell is provided with a bottom cover, the bottom cover is sunken outwards to form a third sunken area, maintenance personnel can add lubricating grease to the through hole quickly by opening the bottom cover, meanwhile, the bottom cover can isolate dust when in use, the third sunken area in the bottom cover can contain part of lubricating grease, when the device is used, the lubricating grease can be brought into a riveting position of the spherical groove and the spherical section along with the movement of the spherical section, and the maintenance period of the part of the vehicle can be prolonged.

To sum up, the beneficial effects of the utility model are that: the device changes the internal structure of the ball head, and the pressure gasket is not arranged in the device, so that the situation that the pressure gasket is deformed and loses efficacy does not exist, and the service life is longer; the fixing seat of the device is fixed on the control arm to form a stable triangular structure, so that the spherical shell and the control arm cannot move relatively, and the arrangement of the plurality of positioning holes is beneficial to dispersing the force between the spherical shell and the control arm, so that the service life of the device can be prolonged; the triangular reinforcing bulges and the circular reinforcing bulges can enhance the strength of the positioning holes on the fixing seat, so that the fixing seat is not easy to break when a traffic accident happens to the device; the dust cover in the device can completely cover the dust cover, the swing arm ball head can be prevented from being crushed or deformed in the transportation or carrying process, the transportation loss is reduced, and the anti-falling nut can prevent the protective cover from falling off in the transportation or carrying process; the annular arc-shaped clamping groove and the annular rectangular clamping groove can be sleeved with clamping rings for increasing the tightness of the dust cover, the ball pin and the ball shell so as to achieve a better sealing effect; the annular teeth on the dust cover can play roles in preventing oil leakage, dust and waste gas; the precision of the matching ball diameter and the outer diameter of the ball bowl is within 10 threads, and meanwhile, the contact area between the ball section and the ball groove is controlled to exceed 70 percent, so that the ball pin is tightly matched with the ball bowl after riveting, the balance of swinging moment and rotating moment is ensured, the ball pin is ensured to rotate freely, the torque in each direction is uniform and consistent, and the clamping stagnation defect is avoided; white wiredrawing lubricating grease is coated at the riveting part of the ball groove and the ball section and the joint of the dust cover, the ball pin and the ball shell, so that high-temperature high friction can be borne, and the service life of the ball head can be effectively prolonged; an included angle formed by a vertical line of a plane where the fixed seat is located and the central axis of the spherical shell is 15-20 degrees, so that the control arm can overcome part of pulling force generated by the ball pin; a reinforcing area is arranged at the connecting position of the fixed seat and the spherical shell, so that the connecting position of the fixed seat and the spherical shell is not easy to break; lubricating grease can be conveniently added into the through hole by arranging the bottom cover; the third recessed area in the bottom cover can accommodate part of the grease, and the maintenance period of the part of the vehicle can be prolonged.

Drawings

FIG. 1 is a schematic view of the overall structure of the device;

FIG. 2 is an exploded view of the present apparatus;

fig. 3 is a cross-sectional view of the present device.

Detailed Description

Embodiments of the invention will be described in further detail with reference to the drawings, it being understood that the examples are illustrative only and should not be taken as limiting the invention, and that all of the features disclosed in the examples or all of the steps in any method or process disclosed herein can be combined in any way, except for mutually exclusive features and/or steps.

Referring to the attached drawings 1-3, the embodiment provides a swing arm ball head for connecting automobile braking and suspension positioning, so that automobile body load can be evenly distributed on a wheel hub, and wheel positioning parameters are maintained, the swing arm ball head comprises a dust cover 10, a ball pin 11, a ball bowl 12 and a ball shell 13, wherein the ball pin 11 can penetrate through the dust cover 10, the ball pin 11 is riveted with the ball bowl 12, the ball bowl 12 is embedded in the ball shell 13, the ball pin 11 is used for connecting a steering knuckle on an automobile, the dust cover 10 is used for preventing silt from entering a part assembly gap and prolonging the service life of the swing arm ball head, the swing arm ball head further comprises a protective cover 14 and an anti-falling nut 15, the protective cover 14 is sleeved on the ball pin 11 and can be used for protecting the dust cover 10 and preventing the dust cover 10 from being crushed or deformed in the transportation or carrying process, when the device is actually installed on the automobile for use, the protective cover 14 needs to, the protective cover 14 can be prevented from falling off during transportation or handling.

Preferably, the protective cover 14 is in the shape of an inverted funnel, the upper opening of the protective cover 14 is small, and the lower opening of the protective cover 14 is large, so that the protective cover 14 can completely cover the dust cover 10 when in use, and the dust cover 10 can be crushed or deformed.

The ball pin 11 comprises a connecting section 16, a conical section 17 and a ball section 18, wherein the connecting section 16 is connected to one end with a small cross section in the conical section 17, the ball section 18 is connected to one end with a large cross section in the conical section 17, an inner hexagonal groove 19 is formed in the upper end of the connecting section 16, a first concave area 20 is formed in the connecting position of the conical section 18 and the connecting section 16 and the ball section 18, the ball pin 11 is made of an alloy material with high impact toughness and bending resistance, the matching precision of the ball section 18 and the ball bowl 12 is guaranteed by mirror finishing, the ball pin 11 can be guaranteed to rotate freely by riveting, and torques in all directions are uniform.

Preferably, the dust cover 10 is hollow, the upper end of the dust cover 10 is provided with an annular arc-shaped clamping groove 23, the lower end of the dust cover 10 is provided with an annular rectangular clamping groove 24, the upper end of the dust cover 10 is provided with a second recessed area 25, the inner wall of the dust cover 10 close to the upper end is provided with an annular tooth 26, the annular arc-shaped clamping groove 23 and the annular rectangular clamping groove 24 can be sleeved with clamping rings for increasing the tightness of the dust cover 10 with the ball pin 11 and the ball shell 13 so as to achieve a better sealing effect, the dust cover 10 and the ball shell 13 are generally not removed after being connected, the annular rectangular clamping groove 24 is designed at the lower end of the dust cover 10 and matched with the annular square clamping ring, the sealing positions of the dust cover 10 and the ball pin 11 may need to be removed during maintenance/repair, the annular arc-shaped clamping groove 23 is designed at the upper end of the dust cover 10 and matched with the annular circular clamping ring, the annular circular, Dust-proof and waste gas-proof.

The ball groove 21 is arranged in the ball bowl 12, the bottom of the ball groove 21 is provided with the through hole 22, the radius of the ball section 18 of the ball pin 11 is the same as that of the ball groove 21, so that the rotating torque is uniform and free of clamping stagnation during working, the gap between the ball section 18 and the ball groove 21 is controlled within 0.1mm, the gap is also called to control the precision of the matching ball diameter and the outer diameter of the ball bowl in the mechanical field to be within 10 threads, meanwhile, the contact area of the ball section 18 and the ball groove 21 is controlled to exceed 70 percent, the ball pin 11 and the ball bowl 12 are tightly matched after riveting, the balance of the swinging torque and the rotating torque is ensured, white wiredrawing-shaped lubricating grease is coated at the riveting part of the ball groove 21 and the ball section 18 and at the combining part of the dust cover 10, the ball pin 11 and the ball shell 13, the high-temperature high friction can be borne, the service life of the ball head can be effectively prolonged, the through hole 22 is convenient for maintenance personnel to add the lubricating grease to the riveting part of the ball groove 21 and the ball section And (6) obtaining.

The fixing seat 27 is integrally arranged on the spherical shell 13, three positioning holes are formed in the fixing seat 27 and comprise a middle positioning hole 28 and two side positioning holes 29, screws can be assembled in the positioning holes, the spherical shell 13 is connected with a control arm on an automobile through the screws, the connecting line distance between the two side positioning holes 29 and the middle positioning hole 28 is the same, the spherical shell 13 is located on the perpendicular bisector of the connecting line of the two side positioning holes 29, a plane is determined by three points, the fixing seat 27 is fixed on the control arm to form a stable triangular structure, the spherical shell 13 and the control arm cannot move relatively, meanwhile, the arrangement of the positioning holes helps to disperse the force between the spherical shell 13 and the control arm, and the service life of the device can be prolonged.

Preferably, the position of the positioning hole on the fixing seat 27 is provided with a reinforcing structure, the two sides of the middle positioning hole 28 are provided with triangular reinforcing protrusions 30, the two sides of the side positioning hole 29 are provided with circular reinforcing protrusions 31, the triangular reinforcing protrusions 30 and the circular reinforcing protrusions 31 can enhance the strength of the positioning hole on the fixing seat 27, and the fixing seat 27 is not easy to break when a traffic accident happens.

An included angle formed by a perpendicular line of a plane where the fixed seat 27 is located and the central axis of the spherical shell 13 is 15-20 degrees, so that the control arm can overcome a part of tensile force generated by the ball pin 11, and a reinforcing area 34 is arranged at the connecting position of the fixed seat 27 and the spherical shell 13, so that the connecting position of the fixed seat 27 and the spherical shell 13 is not easy to break.

Preferably, the interior of the spherical shell 13 is hollow and is vertically through, the bottom of the spherical shell is provided with a bottom cover 32, the bottom cover 32 is outwardly recessed to form a third recessed area 33, a maintenance worker can quickly add lubricating grease to the through hole 22 by opening the bottom cover 32, meanwhile, the bottom cover 32 can isolate dust during use, the third recessed area 33 in the bottom cover 32 can contain part of the lubricating grease, when the device is used, the lubricating grease can be brought into the riveting position of the spherical groove 21 and the spherical section 18 along with the movement of the spherical section 18, and the maintenance period of the part of the vehicle can be prolonged.

In the present application, the terms "first", "second" and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "plurality" means two or more unless expressly limited otherwise.

The above description is only the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through creative work should be covered within the protection scope of the present invention, and therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims

1. A swing arm ball head is characterized by comprising a dust cover, a ball pin, a ball bowl and a ball shell, wherein the ball pin can penetrate through the dust cover, the ball pin is riveted with the ball bowl, and the ball bowl is embedded in the ball shell;

the spherical shell is integrally provided with a fixing seat, the fixing seat is provided with a positioning hole, a screw can be assembled in the positioning hole, the positioning hole is three, the spherical shell comprises a middle positioning hole and two side positioning holes, the positioning hole is provided with a reinforcing structure, and the reinforcing structure comprises a triangular reinforcing protrusion arranged on two sides of the middle positioning hole and a circular reinforcing protrusion arranged on two sides of the side positioning hole.

2. The swing arm ball head of claim 1, wherein the two side locating holes are at the same distance from the connecting line of the middle locating hole, and the ball shell is positioned on the perpendicular bisector of the connecting line of the two side locating holes.

3. The swing arm ball head of claim 1, further comprising a protective cover and a retaining nut, wherein the protective cover is sleeved on the ball pin and can be used for protecting the dust cover, and the retaining nut is arranged at the outer end of the ball pin and can prevent the protective cover from falling off.

4. The swing arm ball head of claim 3, wherein the protective cover is in the shape of an inverted funnel, and completely covers the protective cover.

5. The swing arm ball head of claim 1, wherein the ball pin comprises a connecting section, a conical section and a ball section, wherein one end of the conical section with a small cross section is connected with the connecting section, and one end of the conical section with a large cross section is connected with the ball section;

the connecting position of the conical section, the connecting section and the ball section is provided with a first concave area.

6. The swing arm ball head according to claim 1, wherein the dust cover is hollow, the dust cover has an upper end provided with an annular arc-shaped slot, a lower end provided with an annular rectangular slot, an upper end provided with a second recessed area, and an inner wall of the dust cover adjacent to the upper end provided with annular teeth.

7. The swing arm ball head of claim 1, wherein a ball groove is formed in the ball bowl, and a through hole is formed in the bottom of the ball groove.

8. A swing arm ball head according to claim 5 or 7, wherein the radius of the ball segment of the ball pin is the same as the radius of the ball groove, and the clearance between the ball segment and the ball groove is controlled within 0.1 mm.

9. The swing arm ball head of claim 1, wherein the ball shell is hollow and extends vertically, the bottom of the ball shell is provided with a bottom cover, and the bottom cover is recessed outwards to form a third recessed area.