CN215980470U

CN215980470U - Pin shaft sleeve structure for engineering machinery

Info

Publication number: CN215980470U
Application number: CN202122499189.1U
Authority: CN
Inventors: 李作礼
Original assignee: Qingdao Juxinhe Machinery Technology Co ltd
Current assignee: Qingdao Juxinhe Machinery Technology Co ltd
Priority date: 2021-10-18
Filing date: 2021-10-18
Publication date: 2022-03-08
Anticipated expiration: 2031-10-18

Abstract

The utility model discloses a pin shaft sleeve structure for engineering machinery, which relates to the technical field of mechanical pin shafts, and comprises a pin shaft, a shaft sleeve, a side support and a middle support, wherein the shaft sleeve is sleeved on the surface of the pin shaft, the right end of the pin shaft is provided with a mounting hole, both ends of the inner wall of the shaft sleeve are respectively provided with a sealing ring, a first annular lubricating groove and a second annular lubricating groove are respectively arranged in the shaft sleeve, a spiral lubricating groove is fixedly communicated between the first annular lubricating groove and the second annular lubricating groove, an adjusting part for adjusting the oil output is arranged in the pin shaft, a spiral lubricant groove is arranged between the first annular lubricating groove and the second annular lubricating groove, the spiral lubricant groove comprises a forward spiral groove and a reverse spiral groove, a net structure is formed between the forward spiral groove and the reverse spiral groove, the oil storage space is increased, and by arranging the sealing ring, dust or moisture can be prevented from entering between the pin shaft and the shaft sleeve, and the service life is prolonged.

Description

Pin shaft sleeve structure for engineering machinery

Technical Field

The utility model relates to the technical field of mechanical pin shafts, in particular to a pin shaft sleeve structure for engineering machinery.

Background

The pin shaft is a standard fastener, can be statically and fixedly connected, can also move relative to a connected piece, and is mainly used at the hinged position of two parts to form a hinged connection. The pin shaft is usually locked by a split pin, the operation is reliable, the disassembly is convenient, and the shaft sleeve is a cylindrical mechanical part sleeved on the rotating shaft and is a component of the sliding bearing. Typically, the sleeve is an interference fit with the bearing seat and a clearance fit with the shaft. In the in-service use, because the job scene of round pin axle sleeve is comparatively abominable, the dust gets into the vice surface of friction easily, has improved the loss, has reduced life to the clearance is little between round pin axle and the axle sleeve, and the lubricating oil storage volume is few and runs off easily, can't satisfy people's actual need.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a pin shaft sleeve structure for engineering machinery, which is provided with a spiral lubricant groove arranged between a first annular lubricant groove and a second annular lubricant groove, wherein the spiral lubricant groove comprises a forward spiral groove and a reverse spiral groove, and a net structure is formed between the forward spiral groove and the reverse spiral groove, so that an oil storage space is enlarged.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an engineering machine is round pin axle sleeve structure for machinery, includes round pin axle and axle sleeve, still includes collateral branch bearing and well supporting, the axle sleeve cup joints the surface of round pin axle, the axle sleeve is connected with well supporting, the round pin axle with the collateral branch bearing is connected, the right-hand member of round pin axle is provided with the mounting hole, the sealing washer is all installed at axle sleeve inner wall both ends, install annular lubrication groove one and annular lubrication groove two in the axle sleeve respectively, annular lubrication groove one with fixed intercommunication has the screw lubrication groove between the annular lubrication groove two, be provided with the adjusting part who is used for adjusting out oil quantity in the round pin axle.

Optionally, the adjusting part includes the baffle, the counter bore has been seted up to the round pin axle left end, the inboard of round pin axle has been seted up and has been refueled pore and a plurality of pore two of refueling, and is a plurality of refuel pore two all with refuel pore is fixed the intercommunication, is provided with pull rod and a plurality of bracing piece in the pore one of refueling, the baffle with the upper end fixed connection of bracing piece, the surface of pull rod is seted up and is used for a plurality of the bracing piece passes and a plurality of perforation of fixed connection with it, refuel pore one upper inner wall offer be used for the baffle stretches into and sliding connection's with it spout one, and spout one and refuel pore two intercommunication, be provided with in the pore one of refueling and be used for restricting the spacing part that the bracing piece removed.

Optionally, the limiting component comprises an elastic block, a plurality of second sliding grooves used for the supporting rod to extend into are formed in the lower inner wall of the oiling pore channel, the elastic block is arranged in the second sliding grooves, and the end portion of the supporting rod is abutted to the elastic block.

Optionally, the shaft sleeve includes a wear-resistant layer, a base layer and a rubber layer.

Optionally, the end of the pull rod is fixedly connected with a ball, and the ball is provided with anti-skid stripes.

Optionally, the elastic block is rubber.

Compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, the spiral lubricant groove is arranged between the annular lubricant groove I and the annular lubricant groove II and comprises the forward spiral groove and the reverse spiral groove, and a net structure is formed between the forward spiral groove and the reverse spiral groove, so that the oil storage space is enlarged, the lubricating oil can be conveniently and uniformly and effectively coated on the rotating contact surface, the lubricating oil can conveniently flow, and the fluidity of the lubricating oil is improved.

When the oil outlet amount needs to be adjusted, the pull rod is pulled to move to drive the supporting rod to move, the supporting rod is driven to move to drive the baffle to move, the oil outlet aperture of the oil filling hole channel II can be adjusted through the movement of the baffle, so that the oil outlet amount is adjusted, the practicability of the device in use is improved, the elastic block always abuts against the supporting rod in the moving process of the supporting rod, the supporting rod is convenient to fix, the position of the baffle is fixed, and the stability of adjusting the oil outlet amount is improved.

Drawings

FIG. 1 is a front view of the structure of the present invention;

FIG. 2 is a first partial cross-sectional view of the structure of the present invention;

FIG. 3 is an enlarged view of the structure A in FIG. 2 according to the present invention;

FIG. 4 is a second partial cross-sectional view of the structure of the present invention;

fig. 5 is a side cross-sectional view of the inventive structure.

In the figure: 1. a pin shaft; 2. a shaft sleeve; 3. side bearings; 4. mounting holes; 5. a seal ring; 7. a first annular lubricating groove; 8. a second annular lubricating groove; 9. a helical lubrication groove; 10. a counter bore; 11. a first refueling pore passage; 12. a second refueling hole channel; 13. a pull rod; 14. a ball; 15. a support bar; 16. a baffle plate; 17. a first sliding chute; 18. a second chute; 19. an elastic block; 20. a middle support; 21. a rubber layer; 22. a substrate layer; 23. and a wear-resistant layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 5, the present invention provides a technical solution: a pin shaft sleeve structure for engineering machinery comprises a pin shaft 1, a shaft sleeve 2, a side bearing 3 and a middle bearing 20, wherein the shaft sleeve 2 is sleeved on the surface of the pin shaft 1, the shaft sleeve 2 is connected with the middle bearing 20, the pin shaft 1 is connected with the side bearing 3, a mounting hole 4 is formed in the right end of the pin shaft 1, sealing rings 5 are respectively mounted at two ends of the inner wall of the shaft sleeve 2, an annular lubricating groove I7 and an annular lubricating groove II 8 are respectively mounted in the shaft sleeve 2, a spiral lubricating groove 9 is fixedly communicated between the annular lubricating groove I7 and the annular lubricating groove II 8, an adjusting part for adjusting oil output is arranged in the pin shaft 1, the spiral lubricating groove 9 comprises a forward spiral groove and a reverse spiral groove, when in use, the sealing rings 5 are arranged, two ends of the pin shaft 1, which are connected with the shaft sleeve 2, so that a relatively sealed environment is formed at the two ends, dust or moisture can be prevented from entering between the pin shaft 1 and the shaft sleeve 2, and the pin shaft 1 and the shaft sleeve 2 can be prevented from being damaged, the service life is prolonged, the spiral lubricant groove 9 is arranged between the first annular lubricating groove 7 and the second annular lubricating groove 8, the spiral lubricant groove 9 comprises a forward spiral groove and a reverse spiral groove, a net-shaped structure is formed between the forward spiral groove and the reverse spiral groove, the oil storage space is increased, lubricating oil is convenient to uniformly and effectively paint on a rotating contact surface, the lubricating oil is convenient to flow, and the flowability of the lubricating oil is improved.

Further, the adjusting component comprises a baffle plate 16, the left end of the pin shaft 1 is provided with a counter bore 10, the inner side of the pin shaft 1 is provided with a first oil filling hole channel 11 and a plurality of second oil filling hole channels 12, the plurality of second oil filling hole channels 12 are all fixedly communicated with the first oil filling hole channel 11, a pull rod 13 and a plurality of support rods 15 are arranged in the first oil filling hole channel 11, the baffle plate 16 is fixedly connected with the upper ends of the support rods 15, the surface of the pull rod 13 is provided with a plurality of through holes for the plurality of support rods 15 to penetrate through and be fixedly connected with, the inner wall of the upper wall of the first oil filling hole channel 11 is provided with a first sliding groove 17 for the baffle plate 16 to extend into and be in sliding connection with the first oil filling hole channel 11, the first sliding groove 17 is communicated with the second oil filling hole channels 12, the first oil filling hole channel 11 is internally provided with a limiting component for limiting the movement of the support rods 15, when in use, lubricating oil is introduced from the counter bore 10, the first oil filling hole channel 11 into the second oil filling hole channels 12, through setting up a plurality of two even lubricated effects of playing in the pore of refueling, when the volume of producing oil is adjusted to needs, remove through pulling pull rod 13, drive bracing piece 15 and remove, remove through bracing piece 15, drive baffle 16 and remove, remove through baffle 16, can adjust the pore diameter of producing oil that refuels two 12 in the pore, thereby adjust the volume of producing oil, practicality when improve equipment uses, it offsets with bracing piece 15 all the time to remove in-process elastic block 19 at bracing piece 15, the fixed stay bar 15 of being convenient for, thereby fixed stay 16's position, stability when adjusting the volume of producing oil has been improved.

Further, the limiting part comprises an elastic block 19, a plurality of second sliding grooves 18 used for the supporting rod 15 to stretch into are formed in the lower inner wall of the oil filling hole channel 11, the elastic block 19 is arranged in the second sliding grooves 18, the end portion of the supporting rod 15 is abutted to the elastic block 19, the elastic block 19 is always abutted to the supporting rod 15 when the supporting rod 15 moves in the using process, the supporting rod 15 is convenient to fix, and therefore the position of the fixed baffle plate 16 is improved and the stability of oil outlet adjustment is improved.

Further, axle sleeve 2 includes wearing layer 23, matrix layer 22 and rubber layer 21, and through, wearing layer 23 has carbon fiber and polyester fiber to constitute, and carbon fiber has matter light, high strength, high modulus, high temperature resistant, corrosion resisting property, can improve axle sleeve 2's life.

In order to move the pull rod 13 conveniently, furthermore, the end part of the pull rod 13 is fixedly connected with a round ball 14, the round ball 14 is provided with anti-slip stripes, and the anti-slip stripes are arranged, so that the friction force can be increased, and the hand can be prevented from slipping.

Furthermore, the elastic block 19 is made of rubber, and the elastic block 19 is made of rubber, so that the rubber can be greatly deformed under the action of small external force, can be restored to the original shape after the external force is removed, and can stably limit the movement of the supporting rod 15.

The working principle is as follows: when the pin shaft sleeve structure for the engineering machinery is used, lubricating oil is introduced from the counter bore 10 and enters the oil filling hole channel I11 and then enters the oil filling hole channel II 12 from the oil filling hole channel I11, a plurality of oil filling hole channels II are arranged to achieve a uniform lubricating effect, when the oil output amount needs to be adjusted, the pull rod 13 is pulled to move to drive the supporting rod 15 to move, the supporting rod 15 moves to drive the baffle 16 to move, the baffle 16 moves to adjust the oil outlet aperture of the oil filling hole channel II 12, the oil output amount is adjusted, the practicability of the equipment is improved, the elastic block 19 always abuts against the supporting rod 15 in the moving process of the supporting rod 15, the supporting rod 15 is convenient to fix, the position of the baffle 16 is fixed, and the stability of the oil output amount adjustment is improved;

by arranging the sealing ring 5, the two ends of the pin shaft 1 connected with the shaft sleeve 2 form a relatively sealed environment, so that dust or moisture can be prevented from entering between the pin shaft 1 and the shaft sleeve 2, the pin shaft 1 and the shaft sleeve 2 can be prevented from being damaged, and the service life is prolonged;

through set up spiral lubricant groove 9 between annular lubrication groove 7 and annular lubrication groove two 8 to spiral lubricant groove 9 includes forward helicla flute and reverse helicla flute, forms network structure between forward helicla flute and the reverse helicla flute, has increased the oil storage space, and the even effectual smearing of the lubricating oil of being convenient for rotates the contact surface on, and the lubricating oil of being convenient for flows, has improved the mobility of lubricating oil.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a round pin axle sleeve structure for engineering machine tool, includes round pin axle (1) and axle sleeve (2), its characterized in that: still include side support (3) and well supporting (20), axle sleeve (2) cup joint the surface of round pin axle (1), axle sleeve (2) are connected with well supporting (20), round pin axle (1) with side support (3) are connected, the right-hand member of round pin axle (1) is provided with mounting hole (4), sealing washer (5) are all installed at axle sleeve (2) inner wall both ends, install annular lubrication groove (7) and annular lubrication groove two (8) respectively in axle sleeve (2), annular lubrication groove (7) with fixed intercommunication has spiral lubrication groove (9) between annular lubrication groove two (8), be provided with the adjusting part that is used for adjusting oil output in round pin axle (1).

2. The pin shaft sleeve structure for engineering machinery according to claim 1, wherein: the adjusting component comprises a baffle plate (16), the left end of the pin shaft (1) is provided with a counter bore (10), a first oiling channel (11) and a plurality of second oiling channels (12) are arranged on the inner side of the pin shaft (1), the plurality of second oiling channels (12) are fixedly communicated with the first oiling channel (11), a pull rod (13) and a plurality of support rods (15) are arranged in the first oiling channel (11), the baffle (16) is fixedly connected with the upper ends of the support rods (15), a plurality of through holes for the support rods (15) to pass through and be fixedly connected with are formed in the surface of the pull rod (13), a first sliding groove (17) for the baffle (16) to extend into and be in sliding connection with is formed in the upper inner wall of the first oiling channel (11), and the first sliding groove (17) is communicated with the second oiling channel (12), and a limiting component for limiting the movement of the supporting rod (15) is arranged in the first oiling channel (11).

3. The pin shaft sleeve structure for engineering machinery according to claim 2, wherein: the limiting component comprises an elastic block (19), a plurality of second sliding grooves (18) used for the supporting rod (15) to stretch into are formed in the lower inner wall of the oiling channel I (11), the elastic block (19) is arranged in the second sliding grooves (18), and the end portion of the supporting rod (15) is abutted to the elastic block (19).

4. The pin shaft sleeve structure for engineering machinery according to claim 1 or 2, wherein: the shaft sleeve (2) comprises a wear-resistant layer (23), a matrix layer (22) and a rubber layer (21).

5. The pin shaft sleeve structure for engineering machinery according to claim 2, wherein: the end part of the pull rod (13) is fixedly connected with a round ball (14), and anti-skid stripes are arranged on the round ball (14).

6. The pin shaft sleeve structure for engineering machinery according to claim 3, wherein: the elastic block (19) is made of rubber.