CN210423463U

CN210423463U - Shaft head structure of transmission main shaft of crawler crane

Info

Publication number: CN210423463U
Application number: CN201920417316.9U
Authority: CN
Inventors: 杨明江
Original assignee: XINCHANG JIADE TECHNOLOGY DEVELOPMENT CO LTD
Current assignee: XINCHANG JIADE TECHNOLOGY DEVELOPMENT CO LTD
Priority date: 2019-03-29
Filing date: 2019-03-29
Publication date: 2020-04-28
Anticipated expiration: 2029-03-29

Abstract

The utility model relates to the technical field of transmission main shafts, in particular to a shaft head structure of a transmission main shaft of a crawler crane, which comprises a shaft head main body, wherein one side of the shaft head main body is connected with a driven shaft lever, one end part of the shaft head main body is provided with a power groove, one end of a movable shaft lever extends into the power groove, the driven shaft lever outer wall that is arranged in the power groove is seted up a plurality of screens grooves that even ring was established, has seted up the control flume on the power groove lateral wall that screens groove open end corresponds, is provided with suppression device in the control flume cavity, and the rubber tube has been cup jointed in the activity of the recess depths in power groove, and a bottom end and the driven shaft lever contact of rubber tube, the utility model discloses a simple structural design solves the axial float problem of spindle nose, in case the accident appears, a plurality of suppression device's buffering can make driven shaft lever maintain the pivoted state, falls to the minimum with the loss of accident, has very much the practicality.

Description

Shaft head structure of transmission main shaft of crawler crane

Technical Field

The utility model relates to a transmission main shaft technical field specifically is a spindle nose structure of crawler crane transmission main shaft.

Background

A transmission shaft of a crawler crane in the prior art has potential safety hazards of axial movement, once axial transmission occurs, a transmission main shaft is directly damaged, the crane is damaged to control objects to work, even safety accidents that the objects fall from high altitude when being separated from the control are caused, and the construction environment of workers is influenced.

If the buffer device can be used for ensuring that the transmission of the transmission main shaft cannot be directly interrupted once the axial transmission problem occurs, the problem can be solved by reducing the loss to the minimum, and the shaft head structure of the transmission main shaft of the crawler crane is provided for the purpose.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a spindle nose structure of crawler crane transmission main shaft to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a caterpillar crane transmission main shaft's spindle nose structure, includes the spindle nose main part, one side of spindle nose main part is connected with driven axostylus axostyle, the power groove has been seted up to an tip of spindle nose main part, in moving axostylus axostyle one end extended to the power groove, the screens groove that a plurality of even rings were established is seted up to the driven axostylus axostyle outer wall that is located the power groove, has seted up the control flume on the power groove lateral wall that screens groove open end corresponds, be provided with suppression device in the control flume cavity, the activity of the recess depths in power groove has cup jointed the rubber tube.

Preferably, the outer wall of the driven shaft lever and the side wall of the power groove are both rough frosted surfaces, the driven shaft lever is connected with the power groove in an interference fit mode, and the edge of the end portion of the driven shaft lever, which is located in the power groove, is of a chamfer structure.

Preferably, suppression device includes spring and flexible seat, the spring is located the recess depths of control groove, and the open end position of control groove is provided with flexible seat, spring and flexible seat contact, flexible seat one end extends to in the screens groove.

Preferably, the telescopic seat is a cylindrical and cylindrical end integrally connected with the circular truncated cone, the clamping groove is shaped like a circular truncated cone, the cylindrical end of the telescopic seat is located in the control groove, and the end part of the circular truncated cone of the telescopic seat is meshed with the clamping groove.

Preferably, a plurality of clamping rods are uniformly and annularly arranged at the edge position of the bottom surface of the end part of the driven shaft rod positioned in the power groove, one end of each clamping rod is fixedly connected with the driven shaft rod, and the other end of each clamping rod is inserted into a cylindrical groove formed in the bottom surface of the rubber cylinder.

Preferably, the outer wall of the telescopic seat is integrally connected with a convex sliding block, and the convex sliding block is meshed and connected with a sliding groove formed in the inner wall of the control groove.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model solves the axial float problem of the shaft head through simple structural design, once an accident occurs, the buffer of a plurality of restraining devices can ensure that the driven shaft lever maintains the rotating state, thereby reducing the accident loss to the minimum and having practicability;

2. the device utilizes the backstepping effect of air pressure through the design of rubber cylinder, avoids the driven axostylus axostyle directly to hit the recess depths in the power groove, has improved the stability of spindle nose work.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the suppressing apparatus of FIG. 1;

fig. 3 is a perspective view of the suppression device.

In the figure: the device comprises a shaft head main body 1, a driven shaft rod 2, a power groove 3, a clamping groove 4, a control groove 5, a restraining device 6, a spring 7, an expansion seat 8, a rubber cylinder 9 and a clamping rod 10.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the technical scheme in the utility model, all other embodiments that ordinary skilled person in the art obtained under the prerequisite of not making the creative work all belong to the scope of the utility model protection.

Referring to fig. 1 to 3, the present invention provides a technical solution: the utility model provides a caterpillar crane transmission main shaft's spindle nose structure, includes spindle nose main part 1, and one side of spindle nose main part 1 is connected with driven axostylus axostyle 2, driving groove 3 has been seted up to an tip of spindle nose main part 1, in 2 one ends of driving axostylus axostyle extend to driving groove 3, the screens groove 4 that a plurality of even rings were established is seted up to 2 outer walls of driven axostylus axostyle that are located driving groove 3, has seted up control flume 5 on the driving groove 3 lateral wall that 4 open ends in screens groove correspond, is provided with suppression device 6 in the 5 cavitys in the control flume, and the activity of the recess depths in driving groove 3 has cup jointed rubber tube.

The outer wall of driven axostylus axostyle 2 and the lateral wall of power groove 3 are coarse frosting, and driven

axostylus axostyle

2 and 3 interference fit of power groove connect, and the 2 tip edges of driven axostylus axostyle that are located power groove 3 are chamfer structure.

Suppression device 6 includes spring 7 and flexible seat 8, and spring 7 is located the recess depths of control box 5, and the open end position of control box 5 is provided with flexible seat 8, and spring 7 and the contact of

flexible seat

8, 8 one ends of flexible seat extend to in screens groove 4.

Flexible seat 8 is cylinder and columniform one end body coupling round platform, screens groove 4 shapes are the round platform, the cylinder end of flexible seat 8 is arranged in control groove 5, the round platform tip and the interlock of screens groove 4 looks of flexible seat 8, restraining device 6's effect plays certain buffering effect, when driven axostylus axostyle 2 and the 3 dislocation of power groove, 8 round platform inclined planes of flexible seat and the 4 round platform inclined planes dislocation of screens groove, make flexible seat 8 shrink into in the control groove 5, this in-process flexible seat 8 receives the bounce influence of spring 7, and then flexible seat 8's removal is by rigid, final a plurality of flexible seat 8 cooperations obstruct axial dislocation or rotation dislocation between driven axostylus axostyle 2 and the power groove 3.

The 2 tip bottom surface border positions of driven shaft pole that are arranged in dynamic groove 3 evenly encircle and are equipped with a plurality of

screens pole

10, 10 one end of screens pole and 2 fixed connection of driven shaft pole, the other end injects the cylinder recess of seting up on the rubber barrel 9 bottom surfaces, the design effect of screens pole 10 is to play sealed air effect, utilize air pressure restriction spindle nose main part 1 and the axial float between the driven shaft pole 2, driven shaft pole 2 removes to the recess depths end of dynamic groove 3 promptly, compressed air is sealed in the inner chamber of rubber barrel 9, can not follow the clearance between driven shaft pole 2 and the dynamic groove 3 and flow away.

The outer wall of the telescopic base 8 is integrally connected with a convex sliding block, the convex sliding block is meshed with a sliding groove formed in the inner wall of the control groove 5, and is not shown in fig. 3 with reference to fig. 2, and the sliding groove sliding block is designed to limit the moving range of the telescopic base 8 so that the telescopic base 8 and the control groove 5 are integrally connected.

The working principle is as follows: during operation spindle nose main part 1 rotates and drives driven axostylus axostyle 2, in case axial float appears, the displacement appears between driven axostylus axostyle 2 and the power groove 3 under pressure, driven axostylus axostyle 2's outer wall and the inner wall dislocation of power groove 3 promptly, it is asynchronous to rotate between dislocation in-process spindle nose main part 1 and the driven axostylus axostyle 2, the rotation of spindle nose main part 1 is followed to driven axostylus axostyle 2 of a plurality of cooperation messenger of suppression device 6, driven axostylus axostyle 2 speed is less than spindle nose main part.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a shaft head structure of crawler crane transmission main shaft, includes spindle head main part (1), its characterized in that: one side of spindle nose main part (1) is connected with driven axostylus axostyle (2), driving force groove (3) have been seted up to a tip of spindle nose main part (1), in driving force groove (3) was extended to driving force groove (2) one end, driven axostylus axostyle (2) outer wall that is arranged in driving force groove (3) seted up a plurality of even screens grooves (4) of establishing that encircle, seted up control flume (5) on driving force groove (3) lateral wall that screens groove (4) open end corresponds, be provided with suppression device (6) in control flume (5) cavity, rubber barrel (9) have been cup jointed in the recess depths activity of driving force groove (3), a bottom surface end and the contact of driven axostylus axostyle (2) of rubber barrel.

2. The spindle nose structure of a driving spindle of a crawler crane according to claim 1, wherein: the outer wall of the driven shaft lever (2) and the side wall of the power groove (3) are rough frosted surfaces, the driven shaft lever (2) is connected with the power groove (3) in an interference fit mode, and the edge of the end portion of the driven shaft lever (2) located in the power groove (3) is of a chamfer structure.

3. The spindle nose structure of a driving spindle of a crawler crane according to claim 1, wherein: suppression device (6) include spring (7) and flexible seat (8), spring (7) are located the recess depths of control groove (5), and the open end position of control groove (5) is provided with flexible seat (8), spring (7) and flexible seat (8) contact, flexible seat (8) one end extends to in screens groove (4).

4. The spindle head structure of a transmission spindle of a crawler crane according to claim 3, characterized in that: the telescopic seat (8) is a cylindrical and cylindrical one end integrally connected with the circular truncated cone, the clamping groove (4) is shaped like the circular truncated cone, the cylindrical end of the telescopic seat (8) is located in the control groove (5), and the end part of the circular truncated cone of the telescopic seat (8) is meshed with the clamping groove (4).

5. The spindle nose structure of a driving spindle of a crawler crane according to claim 1, wherein: the edge position of the bottom surface of the end part of the driven shaft lever (2) positioned in the power groove (3) is uniformly and annularly provided with a plurality of clamping levers (10), one end of each clamping lever (10) is fixedly connected with the driven shaft lever (2), and the other end of each clamping lever is inserted into a cylindrical groove formed in the bottom surface of the rubber cylinder (9).

6. The spindle head structure of a transmission spindle of a crawler crane according to claim 3, characterized in that: the outer wall of the telescopic seat (8) is integrally connected with a convex sliding block, and the convex sliding block is meshed and connected with a sliding groove formed in the inner wall of the control groove (5).