CN210001513U - Novel pulley retaining device for lifting hook group of lifting machine - Google Patents

Abstract

The utility model discloses a novel hoisting machinery lifting hook group pulley retaining device, this novel hoisting machinery lifting hook group pulley retaining device include the pulley staple bolt, it includes upper pulley staple bolt, lower pulley staple bolt, upper pulley staple bolt boss and lower pulley staple bolt boss, upper pulley staple bolt, lower pulley staple bolt are semi-circular, upper pulley staple bolt boss is two, lay respectively at the both ends of semi-circular upper pulley staple bolt, lower pulley staple bolt boss is two, lay respectively at the both ends of semi-circular lower pulley staple bolt, and coupling assembling, it can fasten upper pulley staple bolt boss and the lower pulley staple bolt boss that upper pulley staple bolt, lower pulley staple bolt both ends correspond at .

Description

Novel pulley retaining device for lifting hook group of lifting machine

Technical Field

The utility model relates to a hoist machinery field especially relates to novel hoist machinery lifting hook group pulley holding device.

Background

The hoisting equipment is related to production safety, and a pulley and a bearing of a mechanical hook group of the hoisting equipment are axially moved due to the change of an included angle between a steel wire rope entering and exiting the pulley when the hook group rises or falls. To reduce or eliminate such play, current hook set designs often employ circlips to maintain the relative position between the sheave and the bearing.

In the prior art, the elastic retainer ring is often adopted to fix the pulley, and the following defects exist: (a) aiming at the problems that the size of the elastic retainer ring is large, the assembly and disassembly difficulty is large, the hook group is often required to be disassembled after the elastic retainer ring has defects, the broken residual part is difficult to disassemble, the disassembling hook group is difficult to remove, and the maintenance cost is high; (b) the elastic retainer ring clamps the body on the bearing or the pulley through the self spring force, and in the actual engineering application, because the elastic retainer ring has material defects and is not assembled in place, the elastic retainer ring is easy to break and lose efficacy under stress; (c) the anti-loosening measures cannot be adjusted according to the working state.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art .

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide novel hoisting machinery lifting hook group pulley retaining device that simple structure is reasonable, this novel hoisting machinery lifting hook group pulley retaining device can be under the condition of avoiding disintegrating the lifting hook group to maintain the replacement to lifting hook group circlip, reduces cost of maintenance and time limit for a project, through configuration optimization and reasonable selection material, is showing the bearing capacity that has improved current structural component, reduces the inefficacy risk.

In order to achieve the purpose, the utility model provides an novel hoisting machinery lifting hook group pulley retaining device, which comprises a pulley hoop, two upper pulley hoops, two lower pulley hoops, two upper pulley hoop bosses and two lower pulley hoop bosses, wherein the upper pulley hoop and the lower pulley hoop are semicircular, the two upper pulley hoop bosses are respectively arranged at two ends of the semicircular upper pulley hoop, the two lower pulley hoop bosses are respectively arranged at two ends of the semicircular lower pulley hoop, and a connecting assembly can fasten the upper pulley hoop bosses and the lower pulley hoop bosses which correspond to the two ends of the upper pulley hoop and the lower pulley hoop at , so that the pulley hoops are arranged in a clamping groove of a bearing, and the pulleys are limited from two sides and a torque wrench is used for fastening the connecting assembly.

the cross section of the upper and lower pulley hoops is rectangular to fit the slot of the bearing.

the preferred embodiment, the pulley hoop is made of carbon steel, stainless steel or spring steel.

In the preferred embodiment of , the upper pulley hoop bosses extend outwardly along the lateral sides of the ends of the semicircular upper pulley hoop and the lower pulley hoop bosses extend outwardly along the lateral sides of the ends of the semicircular lower pulley hoop.

, the upper and lower pulley hoop bosses are each rectangular.

in a preferred embodiment, the connection assembly includes a bolt and a nut, the upper and lower pulley hoop bosses are both provided with bolt through holes, and the bolt penetrates the corresponding upper and lower pulley hoop bosses and is fastened by the nut.

In a preferred embodiment of , the bolt is an M6 bolt.

Compared with the prior art, according to the utility model discloses a novel hoisting machinery lifting hook group pulley keeps device has following beneficial effect: this novel hoisting machinery lifting hook group pulley keeps device adopts the staple bolt of brand-new mechanical structure type to keep relative position between the two according to the structure that pulley and bearing are seen, can maintain the replacement to lifting hook group circlip under the condition of avoiding disintegrating lifting hook group, reduces cost of maintenance and time limit for a project, through configuration optimization and reasonable selection material, is showing the bearing capacity that has improved current structural component, reduces the risk of failure.

Drawings

Fig. 1 is a schematic perspective view of a novel hoist hook block pulley holding device according to embodiment of the present invention.

Fig. 2 is a front view schematically illustrating a pulley holding device of a new lifting hook set according to embodiment of the present invention.

Fig. 3 is a schematic cross-sectional view of a pulley retaining device of a new lifting hook set according to embodiment of the present invention.

Fig. 4 is a schematic top view of a pulley retaining device for a new hoist hook block according to embodiment of the present invention.

Detailed Description

The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited by the following detailed description.

Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.

As shown in fig. 1 to 4, according to the utility model discloses novel hoisting machinery lifting hook group pulley retaining device of preferred embodiment corresponds two semicircle formula snap ring staple bolts of preparation according to the draw-in groove form and the size of bearing, and the size of pulley assembly to set up the bolt hole at the tip, use the bolt to carry out the built-up fitting, fasten according to standard moment, can formulate corresponding locking measure of moving according to actual conditions. The elastic clamping is replaced by a bolt fastening mode. This novel hoisting machinery lifting hook group pulley keeps device's concrete structure includes: pulley staple bolt, coupling assembling and moment spanner, wherein, the pulley staple bolt is laid in the draw-in groove of bearing through coupling assembling, fasten according to standard moment through the moment spanner, it is spacing to the pulley from both sides, this novel hoisting machinery hangs hook group pulley retaining device according to the structure that pulley and bearing are seen, the staple bolt that adopts the brand-new mechanical structure type keeps relative position between the two, can maintain the replacement to hanging hook group circlip under the condition of avoiding disassembling hanging hook group, reduce cost of maintenance and time limit for a project, through configuration optimization and reasonable selection material, show the bearing capacity that has improved current structural component, reduce the risk of failure.

Specifically, the pulley hoop includes: upper pulley staple bolt 1, lower pulley staple bolt 2, upper pulley staple bolt boss 3 and lower pulley staple bolt boss 4. Wherein, the upper pulley hoop 1 and the lower pulley hoop 2 are both semicircular and are used for being clamped into the clamping grooves of the bearings. The number of the upper pulley hoop bosses 3 is two, and the upper pulley hoop bosses are respectively arranged at two ends of the semicircular upper pulley hoop 1. The two lower pulley hoop bosses 4 are respectively arranged at two ends of the semicircular lower pulley hoop 2. Two lower pulley staple bolt bosss 4 correspond with two upper pulley staple bolt bosss 3 respectively, and through coupling assembling ring formula snap ring staple bolts, carry on spacingly to the pulley from both sides, can formulate corresponding locking measure of moving according to actual conditions.

Preferably, the sections of the upper pulley hoop 1 and the lower pulley hoop 2 are both rectangles matched with the clamping grooves of the bearing.

Preferably, the pulley hoop is made of carbon steel.

Preferably, the material of pulley staple bolt is the spring steel.

Preferably, the upper pulley hoop boss 3 extends outwards along the two end sides of the semicircular upper pulley hoop 1, and the lower pulley hoop boss extends outwards along the two end sides of the semicircular lower pulley hoop.

Preferably, the upper pulley hoop boss 3 and the lower pulley hoop boss 4 are cuboids.

Coupling assembling can fasten with the corresponding upper pulley staple bolt boss 3 in upper pulley staple bolt 1, 2 both ends of lower pulley staple bolt and lower pulley staple bolt boss 4 to lay the pulley staple bolt in the draw-in groove of bearing, carry on spacingly to the pulley from both sides.

Preferably, the connecting assembly comprises: bolt 5 and nut 6, upper pulley staple bolt boss 3 and lower pulley staple bolt boss 4 have all seted up the bolt and have perforated, and the bolt penetrates corresponding upper pulley staple bolt boss 3 and lower pulley staple bolt boss 4 to through the nut fastening, can quantify the management to the clamping dynamics.

Preferably, the bolt is an M6 bolt, a national institute standard component.

To sum up, this novel hoisting machinery lifting hook group pulley retaining device adopts the staple bolt of brand-new mechanical structure type to keep relative position between the two according to the structure that pulley and bearing are seen, can maintain the replacement to lifting hook group circlip under the condition of avoiding disintegrating the lifting hook group, reduces cost of maintenance and time limit for a project, through configuration optimization and reasonable selection material, is showing the bearing capacity that has improved current structural component, reduces the inefficacy risk.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims (7)

1, novel hoisting machinery lifting hook group pulley holding device, its characterized in that includes:

pulley staple bolt, it includes: the upper pulley hoop and the lower pulley hoop are semicircular, and the number of the upper pulley hoop bosses is two, and the two upper pulley hoop bosses are respectively arranged at two ends of the semicircular upper pulley hoop; the two lower pulley hoop bosses are respectively arranged at two ends of the semicircular lower pulley hoop;

a connecting component which can fasten -up the upper pulley hoop lug boss and the lower pulley hoop lug boss corresponding to the two ends of the upper pulley hoop and the lower pulley hoop so as to arrange the pulley hoop in the clamping groove of the bearing and limit the pulley from the two sides, and

and the torque wrench is used for fastening the connecting assembly.

2. The pulley holding device of the new hoisting machinery hook group of claim 1, wherein the cross section of the upper pulley hoop and the lower pulley hoop is rectangular and is adapted to the slot of the bearing.

3. The pulley holding device of the new hoisting machinery hook group of claim 1, wherein the material of the pulley hoop is carbon steel, stainless steel or spring steel.

4. The new hoist hook set pulley retention apparatus of claim 1, wherein the upper pulley hoop bosses extend outwardly along the lateral sides of the ends of the upper semi-circular pulley hoop, and the lower pulley hoop bosses extend outwardly along the lateral sides of the ends of the lower semi-circular pulley hoop.

5. The pulley retaining device of claim 1, wherein the upper pulley hoop boss and the lower pulley hoop boss are rectangular.

6. The new hoist machinery hook block sheave retention device of claim 1, wherein the connection assembly includes: the bolt hole has all been seted up to upper pulley staple bolt boss and lower pulley staple bolt boss, the bolt penetrates corresponding upper pulley staple bolt boss and lower pulley staple bolt boss to fasten through the nut.

7. The new hoist machinery hook block sheave retaining device of claim 6, wherein the bolt is an M6 bolt.

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