CN212360483U

CN212360483U - Ball pin

Info

Publication number: CN212360483U
Application number: CN202020886622.XU
Authority: CN
Inventors: 程善良
Original assignee: Yuhuan Machinery Co ltd
Current assignee: Yuhuan Machinery Co ltd
Priority date: 2020-05-22
Filing date: 2020-05-22
Publication date: 2021-01-15
Anticipated expiration: 2030-05-22

Abstract

The utility model discloses an automobile accessory, aiming at providing a ball pin with small friction force, shock absorption effect, dust prevention and convenient disassembly; its technical scheme main points are bulb round pin, including the bulb, connecting rod and threaded rod, the inside spherical oil groove that is provided with of bulb, the bulb bottom is provided with through-hole and ring channel I, be provided with buffer spacer I in the ring channel I, the bulb below is provided with the disc, be provided with ring channel II on the disc, be provided with buffer spacer II in the ring channel II, be provided with damping spring between buffer spacer I and the buffer spacer II, the bulb surface is provided with annular circular slot, be provided with the lubricant film in the annular circular slot, be provided with the ball in the annular circular slot, be provided with circular through-hole between bulb surface and the spherical oil groove, the bulb is provided with the arc strengthening rib with the junction of connecting rod, be provided with concave station and annular groove on the connecting rod and be close to bulb one end and be the toper.

Description

Ball pin

Technical Field

The utility model relates to the technical field of auto parts, in particular to a ball pin.

Background

The ball pin has the functions of ensuring the stability of automobile operation, the smoothness, comfort and safety of running and key parts for enabling the automobile to run correctly and accurately, and is also called as a ball hinge and a ball joint. The refining accuracy of the ball pins on the market at present has reached an extremely high level, and therefore, if the refining accuracy is improved or the wear of the ball pins is prevented from occurring from a refining or manufacturing angle, it has been difficult to achieve, and the cost input is multiplied for every increase of one level of refining accuracy, and therefore, the wear resistance of the ball pins is improved only from other angles.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a change friction mode and improve lubricated effect of bulb and wearability and have the bulb round pin of certain shock attenuation effect.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a ball head pin, includes bulb, connecting rod and threaded rod, its characterized in that: the ball head, the connecting rod and the threaded rod are connected in sequence, a spherical oil groove is arranged in the ball head, a through hole penetrating through the spherical oil groove is formed in the bottom of the ball head, an annular circular groove is formed in the outer surface of the ball head, a lubricating layer is arranged in the annular circular groove, balls are arranged in the annular circular groove, the lubricating layer is located between the annular circular groove and the balls, a circular through hole is formed in the outer surface of the ball head and between the spherical oil grooves, an arc-shaped reinforcing rib is arranged at the joint of the ball head and the connecting rod, and an annular clamping groove is formed.

Through adopting foretell technical scheme, make the sliding friction on bulb surface change into rolling friction, the effectual frictional force that has reduced between bulb and the bulb seat, the wearability has been improved, lubricating oil in the inside spherical oil groove of bulb has guaranteed that there is lubricating oil when the contact surface of bulb and bulb seat through the through-hole of bulb bottom and the circular through-hole between bulb surface and the spherical oil groove at every moment, bulb and connecting rod junction set up the arc strengthening rib, can make the structural strength increase of junction, thereby can reduce the diameter of junction connecting rod appropriately, increase the swing angle of bulb round pin, set up annular clamping groove on the connecting rod, effectively prevent that the dust from getting into between dust cover and connecting rod.

The utility model discloses further set up to: the bulb bottom is provided with ring channel I, ring channel I with the coaxial setting of through-hole, I internal diameter of ring channel is greater than the through-hole diameter, be provided with buffer pad I in the ring channel I, the bulb below is provided with the disc, be provided with ring channel II on the disc, II inslots are provided with buffer pad II, buffer pad I with be provided with damping spring between the buffer pad II, can carry out effectual shock attenuation at bulb round pin during operation through setting up damping spring, and the setting up of buffer pad I and buffer pad II has prolonged damping spring's life, has prolonged the life-span of bulb round pin subassembly simultaneously.

The utility model discloses further set up to: be provided with according to circumference evenly distributed's concave station on the connecting rod, can make through setting up the concave station prevent to skid when the assembly bulb round pin, improved the installation and dismantle efficiency, alleviateed the installation and dismantle the degree of difficulty.

The utility model discloses further set up to: the annular circular grooves are 2-3 in number and are arranged in parallel, and the lubricating effect is more obvious and the wear resistance is better by arranging the multiple rows of annular circular grooves.

The utility model discloses further set up to: the number of the circular through holes is 4-8, and the lubricating ball head can be better lubricated by lubricating oil by arranging the circular through holes, so that the condition that the lubricating oil does not exist in the local part of the ball head is avoided.

The utility model discloses further set up to: the end face of the threaded rod is provided with the quincunx counter bore, and the quincunx structure can also ensure that the structural strength of the ball stud is not greatly influenced while the weight of the ball stud is reduced by the quincunx counter bore.

The utility model discloses further set up to: one end of the connecting rod, which is close to the ball head, is conical, the conical degree alpha of the conical shape is 4-10 degrees, and the swinging degree of the ball head pin can be further increased by arranging a conical mechanism.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a cross-sectional view of the present invention;

in the drawings: 1. a ball head; 2. a connecting rod; 3. a threaded rod; 4. a spherical oil groove; 5. a through hole; 6. an annular circular groove; 7. a lubricating layer; 8. a ball bearing; 9. a circular through hole; 10. an arc-shaped reinforcing rib; 11. an annular neck; 12. a countersunk hole; 13. a concave platform; 14. an annular groove I; 15. a buffer gasket I; 16. a disc; 17. an annular groove II; 18. a buffer gasket II; 19. a shock absorbing spring.

Detailed Description

The invention is further described in the following with reference to fig. 1 and 2 in a specific embodiment: the utility model provides a ball stud, includes bulb 1, connecting rod 2 and threaded rod 3, its characterized in that: the ball head 1, the connecting rod 2 and the threaded rod 3 are sequentially connected, and the ball head 1, the connecting rod 2 and the threaded rod 3 are integrally formed; the ball joint is characterized in that a spherical oil groove 4 is arranged in the ball joint 1, a through hole 5 penetrating through the spherical oil groove is formed in the bottom of the ball joint 1, an annular groove I14 is formed in the bottom of the ball joint 1, the annular groove I14 and the through hole 5 are coaxially arranged, the inner diameter of the annular groove I14 is larger than the diameter of the through hole 5, a buffer gasket I15 is arranged in the annular groove I14 through bonding, a disc 16 is arranged below the ball joint 1, an annular groove II 17 is arranged on the disc 16, a buffer gasket II 18 is arranged in the annular groove II 17 through bonding, a damping spring 19 is arranged between the buffer gasket I15 and the buffer gasket II 18, the damping spring is respectively and fixedly connected with the buffer gasket I and the buffer gasket II, an annular circular groove 6 is formed in the outer surface of the ball joint 1, a lubricating layer 7 is arranged in the annular circular, the annular circular groove 6 is internally provided with a ball 8, the ball 8 is a bearing steel ball, the ball 8 is embedded into the annular circular groove 6 through heating matching, and the lubricating layer 7 is positioned between the annular circular groove 6 and the ball 8; circular through holes 9 are formed between the outer surface of the ball head 1 and the spherical oil groove 4, the number of the circular through holes 9 is 4-8, and an arc-shaped reinforcing rib 10 is arranged at the joint of the ball head 1 and the connecting rod 2; the connecting rod 2 is provided with concave stations 13 which are uniformly distributed according to the circumference, and the number of the concave stations 13 can be 2-6; the connecting rod 2 is provided with an annular clamping groove 11, one end of the connecting rod 2 close to the ball head 1 is conical, the conical taper alpha is 4-10 degrees, the end face of the threaded rod 3 is provided with a counter bore 12, and the adhesive used for bonding is a high-temperature-resistant metal adhesive.

The structure can show that the sliding friction on the surface of the ball head is changed into rolling friction by changing the outer surface of the ball head, the friction between the ball head and the ball head seat is effectively reduced, the wear resistance is improved, the lubricating oil in the spherical oil groove in the ball head passes through the through hole at the bottom of the ball head and the circular through hole between the outer surface of the ball head and the spherical oil groove, so that the lubricating oil is always kept when the contact surface of the ball head and the ball seat is contacted, the friction of the lubricating layer between the ball head and the ball is further reduced, the damping spring is arranged between the ball head and the disc, the damage of the ball head caused by the vibration of the ball head during working can be effectively reduced, the arc-shaped reinforcing rib is arranged at the joint of the ball head and the connecting rod, the structural strength of the joint can be increased, the diameter of the connecting rod at the joint can be properly, effectively prevent that the dust from getting into between dust cover and the connecting rod, when lightening the weight of bulb round pin through setting up the quincunx counter sink, its structural strength can also be guaranteed not to receive too big influence to the quincunx structure.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a ball stud, includes bulb (1), connecting rod (2) and threaded rod (3), its characterized in that: the ball head (1), the connecting rod (2) and the threaded rod (3) are connected in sequence; a spherical oil groove (4) is formed in the ball head (1), and a through hole (5) penetrating through the spherical oil groove is formed in the bottom of the ball head (1); an annular circular groove (6) is formed in the outer surface of the ball head (1), a lubricating layer (7) is arranged in the annular circular groove (6), balls (8) are arranged in the annular circular groove (6), and the lubricating layer (7) is located between the annular circular groove (6) and the balls (8); a round through hole (9) is formed between the outer surface of the ball head (1) and the spherical oil groove (4); an arc-shaped reinforcing rib (10) is arranged at the joint of the ball head (1) and the connecting rod (2); and the connecting rod (2) is provided with an annular clamping groove (11).

2. A ball stud as defined in claim 1, wherein: bulb (1) bottom is provided with ring channel I (14), ring channel I (14) with through-hole (5) coaxial setting, ring channel I (14) internal diameter is greater than through-hole (5) diameter, be provided with buffer pad I (15) in ring channel I (14), bulb (1) below is provided with disc (16), be provided with ring channel II (17) on disc (16), be provided with buffer pad II (18) in ring channel II (17), buffer pad I (15) with be provided with damping spring (19) between buffer pad II (18).

3. A ball stud as defined in claim 1, wherein: concave platforms (13) which are uniformly distributed according to the circumference are arranged on the connecting rod (2).

4. A ball stud as defined in claim 1, wherein: the number of the annular circular grooves (6) is 2-3 and the annular circular grooves are arranged in parallel.

5. A ball stud as defined in claim 1, wherein: the number of the circular through holes (9) is 4-8.

6. A ball stud as defined in claim 1, wherein: the end face of the threaded rod (3) is provided with a counter bore (12).

7. A ball stud as defined in claim 1, wherein: one end of the connecting rod (2) close to the ball head (1) is conical, and the conical degree alpha of the conical shape is 4-10 degrees.