CN218656037U - Better cantilever crane cap of sealing performance - Google Patents

Abstract

The utility model provides a better cantilever crane cap of sealing performance, including being used for installing the main shaft on the breaker, exhaust hole and tank filler sleeve, the split type setting of cantilever crane cap, the cantilever crane cap still includes outer cantilever crane lid, interior sealed lid and cantilever crane cap spigot portion, outer cantilever crane lid passes through bolted connection with interior sealed lid, be provided with the shoulder hole in the outer cantilever crane lid, the shoulder hole internal slip is provided with the fender ring, the fender ring top is provided with the spring, it is provided with the elastic seal circle to keep off the ring below, the sealed face of lid surface of interior is provided with the sealed bulge loop of first sealed bulge loop and the sealed bulge loop of second towards outer cantilever crane lid, interval setting about the sealed bulge loop of first sealed bulge loop and second, cantilever crane cap spigot portion surface is provided with the external screw thread, cantilever crane cap spigot portion and the sealed threaded connection of interior. The utility model discloses a cooperation of spring, fender ring and elastic sealing circle seals outer cantilever crane lid and internal seal lid for inside the dust can not enter into the cantilever crane cap, influences the lubricated effect of lubricating grease.

Description

Better cantilever crane cap of sealing performance

Technical Field

The utility model belongs to the technical field of sealed cantilever crane cap, especially, relate to a better cantilever crane cap of sealing performance.

Background

The single-cylinder hydraulic cone crusher has the advantages of simple structure principle, convenience in maintenance, safety and reliability in work, and can be widely applied to industries such as mine ore dressing, building materials, highway and railway engineering construction. The arm support part is used as the central point of the rotary motion of the main shaft, and plays an important role.

At present, the cantilever crane cap and the upper frame body are connected in an embedded mode through bolts, under the action of air pressure generated by rotation and up-and-down movement of a main shaft, threads in bolt holes are prone to being damaged, and the bolts are prone to being cut off after being loosened. The installation mode of bolt embedded is difficult to operate, the broken bolt is difficult to take out, the screw teeth in the bolt hole are difficult to repair after being damaged, the arm support cap is difficult to take out to influence the maintenance progress, the original sealing mode of the arm support cap adopts O-shaped ring sealing, the arm support cap is easy to damage in the using process to cause sealing failure, the point is the main dust inlet point of the arm support portion after failure, the lubricating effect of lubricating grease of the arm support bearing fails after dust inlet, and the upper point of the main shaft means failure to cause serious equipment failure.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the technical problem that foretell current sealed cantilever crane cap exists, provide a reasonable in design, simple structure, processing convenient better cantilever crane cap of sealing performance.

In order to achieve the purpose, the utility model discloses a technical scheme do, a better cantilever crane cap of sealing performance, including being used for installing the main shaft on the breaker, exhaust hole and tank filler hole, the split type setting of cantilever crane cap, the cantilever crane cap still includes outer cantilever crane lid, interior sealed lid and cantilever crane cap ending part, outer cantilever crane lid passes through bolted connection with interior sealed lid, be provided with the shoulder hole in the outer cantilever crane lid, the downthehole slip of shoulder hole is provided with the fender ring, the fender ring top is provided with the spring, fender ring below is provided with the elastic sealing circle, interior sealed lid surface is provided with the first sealed bulge loop and the sealed bulge loop of second towards outer cantilever crane lid, interval setting about first sealed bulge loop and the sealed bulge loop of second, cantilever crane cap ending part surface is provided with the external screw thread, cantilever crane cap ending part and the sealed threaded connection of interior.

Preferably, the upper surface of the inner sealing cover is provided with a pin hole, and the outer arm support cover is provided with a pin hole matched with the inner sealing cover.

Preferably, a taper thread is arranged at the joint of the inner sealing cover and the stop opening part of the arm support cap, a convex groove is arranged at the bottom of the inner sealing cover, the stop opening part of the arm support cap is a concave groove, and the two grooves are in labyrinth sealing when the sealing cover is screwed to the bottom.

Preferably, a limiting ladder is arranged above the baffle ring, an inclined plane is arranged on one side, close to the elastic sealing ring, of the baffle ring, and an inclined plane is arranged on the upper surface of the inner sealing cover.

Preferably, the exhaust hole is formed in the arm support cap stop opening portion, and the oil filling hole is formed in the arm support cap stop opening portion.

Preferably, the arm support cap further comprises an upper support body, and a shaft sleeve is arranged in the upper support body.

Compared with the prior art, the utility model discloses an advantage lies in with positive effect, the utility model discloses a spring, keep off the cooperation of ring and elastic sealing ring, outer cantilever crane lid and interior sealed lid seal, make inside the dust can not enter into the cantilever crane cap, influence the lubricated effect of lubricating grease, the setting of spring, as long as outer cantilever crane lid and interior sealed lid inseparable, there is elasticity throughout the spring, even elastic sealing ring inefficacy ageing deformation, the spring also can last for elastic sealing ring pressure through keeping off the ring, make it keep the inflation, ensure that sealed respond well, interval setting about first sealed bulge loop and the sealed bulge loop of second, first sealed bulge loop and the sealed bulge loop of second tightly laminate outer cantilever crane lid, further seal outer cantilever crane lid and interior sealed lid, avoid the dust to get into the cantilever crane cap, even elastic sealing ring inefficacy, first sealed bulge loop and the sealed bulge loop of second still can block the dust and get into, the reliability of equipment has been increased, the split type setting of cantilever crane cap, outer cantilever crane cap passes through bolted connection with interior sealed lid, make things convenient for the staff to inspect and maintain, only need dismantle the outer cantilever crane cap when changing the cantilever crane cap and can.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.

FIG. 1 is a schematic view of a better sealing arm cap;

FIG. 2 is a schematic view of the outer boom cover configuration;

FIG. 3 is a schematic diagram of a boom cap without an outer boom cover

In the above figures, 1, main axis; 2. an exhaust hole; 3. an oil filling hole; 4. an outer boom housing cover; 41. a baffle ring; 42. a spring; 43. an elastic sealing ring; 5. an inner sealing cover; 51. a first sealing convex ring; 52. a second sealing convex ring; 53. a convex groove; 6. a stop opening part of the arm support cap; 61. a concave groove; 7. a pin hole; 8. a limiting ladder; 9. an upper frame body; 91. and a shaft sleeve.

Detailed Description

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the present invention is not limited to the limitations of the specific embodiments of the present disclosure.

Embodiment, as shown in fig. 1, fig. 2 and fig. 3, a boom cap with better sealing performance comprises a main shaft 1, an exhaust hole 2 and an oil filling hole 3, wherein the main shaft 1 is used for being mounted on a crusher, and of course, the main shaft 1 can be set to be in other shapes, but considering that the main shaft 1 of the existing single-cylinder hydraulic cone crusher is mostly cylindrical, the cylindrical shape is more convenient for subsequent assembly.

The exhaust hole 2 is L-shaped, the oil filling hole 3 is a straight hole, and the structure is the prior structure, so the detailed description is omitted.

In order to facilitate the maintenance of workers, in the embodiment, the arm support cap is arranged in a split mode, the arm support cap further comprises an outer arm support cover 4, an inner sealing cover 5 and an arm support cap spigot portion 6, the outer arm support cover 4 is connected with the inner sealing cover 5 through bolts, the arm support cap is in a split type design, only the bolts of the upper arm support cover need to be detached when the arm support cap is maintained and replaced, and too much time is avoided in the maintenance process.

In order to solve the problem that sealing failure is caused by easy damage in the process of using an O-ring seal, in the embodiment, a stepped hole is formed in the outer arm frame cover 4, a baffle ring 41 is slidably arranged in the stepped hole, a spring 42 is arranged above the baffle ring 41, an elastic seal ring 43 is arranged below the baffle ring 41, the stepped hole can play a role of limiting, the limit position of the spring 42 is limited, and the moving distance of the spring 42 is prevented from exceeding the limit, because the length of the spring 42 is greater than that of the stepped hole, when the outer arm frame cover 4 and the inner seal cover 5 are matched, the inner seal cover 5 applies upward force to the elastic seal ring 43, the elastic seal ring 43 transmits the force to the baffle ring 41, the baffle ring 41 is stressed to compress the spring 42, meanwhile, because the spring 42 is in a compressed state, elastic force in the direction opposite to the force from the baffle ring 41 is generated, the elastic force is applied to the elastic seal ring 43 through the baffle ring 41, because the elastic seal ring 43 receives the force from the inner seal cover 5 and the spring 42, the elastic seal ring 43 begins to deform and expand, further seal the inner seal cover 5 and the outer arm cover 4 and improve the sealing effect of the sealing.

In order to further improve the sealing effect between the inner sealing cover 5 and the outer arm frame cover 4, in this embodiment, the outer surface of the inner sealing cover 5 is provided with a first sealing convex ring 51 and a second sealing convex ring 52 facing the outer arm frame cover 4, the first sealing convex ring 51 and the second sealing convex ring 52 are arranged at an upper and lower interval, the first sealing convex ring 51 and the second sealing convex ring 52 tightly adhere to the outer arm frame cover 4, further seal the outer arm frame cover 4 and the inner sealing cover 5 to prevent dust from entering the arm frame cap, even if the elastic sealing ring 43 fails, the first sealing convex ring 51 and the second sealing convex ring 52 still can prevent dust from entering, so that the reliability of the device is increased, the cross sections of the first sealing convex ring 51 and the second sealing convex ring 52 are arranged in a right-angle ladder shape, the side thereof far away from the inner sealing cover 5 is an inclined surface, so that the arrangement of the first sealing convex ring 51 and the second sealing convex ring 52 not only makes the inner sealing cover 5 more convenient to install and difficult to be stuck, but also makes the cross section shape of the inner sealing cover 5 automatically withdraw from the inner sealing cover and the outer arm frame cover 4, thereby achieving the dirt cleaning effect.

In order to realize the sealing between the inner sealing cover 5 and the arm support cap spigot portion 6, in the embodiment, the outer surface of the arm support cap spigot portion 6 is provided with external threads, the arm support cap spigot portion 6 is in threaded connection with the inner sealing cover 5, the connection between the inner sealing cover 5 and the arm support cap spigot portion 6 is provided with conical threads, the bottom of the inner sealing cover 5 is provided with a convex groove 53, the arm support cap spigot portion 6 is a concave groove 61, two grooves are in labyrinth sealing when the sealing cover rotates to the bottom, and the conical threads enable the threaded connection between the inner sealing cover 5 and the arm support cap spigot portion 6 to be tighter, more reliable and better in sealing effect.

In order to conveniently dismantle the inner sealing cover 5, in the embodiment, the upper surface of the inner sealing cover 5 is provided with the pin hole 7, the outer arm frame cover 4 is provided with the pin hole 7 matched with the inner sealing cover 5, the inner sealing cover 5 is heavy in weight and is not easy to dismantle during the dismounting, the pin hole 7 is reserved at the top of the inner sealing cover 5 during the design, the inner sealing cover can be dismounted by using a special dismounting wrench, and a worker can conveniently check and maintain.

For better realization elastic seal ring 43's sealed effect, in this embodiment, it is provided with spacing ladder 8 to keep off 41 tops of ring, one side that keeps off 41 ring and be close to elastic seal ring 43 is provided with the inclined plane, the 5 upper surfaces of inner sealing lid are provided with the inclined plane, spacing ladder 8's setting, the migration distance who keeps off 41 ring has restricted, it is not enough to avoid spring 42 elasticity, can not produce and be greater than the ascending power that comes from inner sealing lid 5 and applys, make keep off 41 ring upward movement always, the setting on inclined plane, make elastic seal ring 43 pressurized deformation, outside inflation, the sealed effect of elastic seal ring 43 has been improved.

In order to discharge the gas in the arm support cap in time and refuel the arm support cap, in this embodiment, the exhaust hole 2 is arranged at the arm support cap spigot part 6, the oil filling hole 3 is arranged at the arm support cap spigot part 6, and the exhaust hole 2 is provided with two holes in the arm support cap, so that the gas in the arm support cap can be discharged out of the arm support cap in time, the problems of easy blockage and internal exhaust failure are solved, and the arrangement of the oil filling hole 3 enables a worker to add lubrication to the arm support cap in time.

In order to ensure the rotation of the main shaft 1, in this embodiment, the arm cap further includes an upper frame 9, a shaft sleeve 91 is disposed in the upper frame 9, and the main shaft 1 is maintained to rotate relatively in the upper frame 9 through the shaft sleeve 91.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.

Claims (6)

1. The utility model provides a better cantilever crane cap of sealing performance, is including being used for installing main shaft, exhaust hole and the tank filler sleeve on the breaker, its characterized in that, the split type setting of cantilever crane cap, the cantilever crane cap still includes outer cantilever crane lid, interior sealing cover and cantilever crane cap spigot portion, outer cantilever crane lid passes through bolted connection with interior sealing cover, be provided with the shoulder hole in the outer cantilever crane lid, the downthehole slip of shoulder hole is provided with the fender ring, it is provided with the spring to keep off the ring top, it is provided with the elastic sealing circle to keep off the ring below, the surface of interior sealing cover is provided with the first sealed bulge loop and the sealed bulge loop of second towards outer cantilever crane lid, interval sets up about first sealed bulge loop and the sealed bulge loop of second, cantilever crane cap spigot portion surface is provided with the external screw thread, cantilever crane cap spigot portion and the threaded connection of interior sealing cover.

2. The boom cap with better sealing performance as claimed in claim 1, wherein the inner sealing cover is provided with pin holes on its upper surface, and the outer boom cover is provided with pin holes matching with the inner sealing cover.

3. The boom cap with better sealing performance as claimed in claim 2, wherein a taper thread is arranged at the joint of the inner sealing cover and the stop opening part of the boom cap, a convex groove is arranged at the bottom of the inner sealing cover, the stop opening part of the boom cap is a concave groove, and when the sealing cover is screwed to the bottom, the two grooves are labyrinth-type seals.

4. The arm support cap with better sealing performance as claimed in claim 3, wherein a limiting ladder is arranged above the baffle ring, an inclined surface is arranged on one side of the baffle ring close to the elastic sealing ring, and an inclined surface is arranged on the upper surface of the inner sealing cover.

5. The boom cap with better sealing performance as claimed in claim 4, wherein the exhaust hole is arranged at the stop opening part of the boom cap, and the oil filling hole is arranged at the stop opening part of the boom cap.

6. The boom cap with better sealing performance according to claim 5, further comprising an upper frame body, wherein a shaft sleeve is arranged in the upper frame body.

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