CN210600112U

CN210600112U - Rotary speed reducer for grabbing machine

Info

Publication number: CN210600112U
Application number: CN201921599339.2U
Authority: CN
Inventors: 张陈; 潘苗
Original assignee: Jiangyin Huafang New Energy Hi Tech Equipment Co Ltd
Current assignee: Jiangyin Huafang New Energy Hi Tech Equipment Co Ltd
Priority date: 2019-09-24
Filing date: 2019-09-24
Publication date: 2020-05-22
Anticipated expiration: 2029-09-24

Abstract

The utility model relates to a grab rotation reduction gear for machine, it includes base (1), base (1) is including axle housing (1.1) and seat circle (1.2), be provided with worm (2) in axle housing (1.1), be provided with worm wheel (3) in seat circle (1.2), worm (2) and worm wheel (3) intermeshing, worm (2) adopt the steel material, worm wheel (3) adopt the copper alloy material. The utility model relates to a grab quick-witted rotation reduction gear, it adopts the copper alloy worm wheel to join in marriage the transmission structure of steel worm, and the gyration of supporting worm wheel adopts sliding friction's mode, has shock resistance, resistance to wears the bonding ability reinforce, and axle, radial bearing capacity are big, advantages such as simple to operate.

Description

Rotary speed reducer for grabbing machine

Technical Field

The utility model relates to a grab quick-witted rotation reduction gear mainly is applicable to the excavator, grabs wooden machine, loader and the connecting device between the various accessories belongs to engineering machine tool technical field.

Background

Excavators, log grabs, loaders and the like are typical and widely used equipment in the engineering machinery industry, have very good markets at home and abroad, and are very important basic equipment in the capital construction industry, the agriculture and forestry industry and the like.

With the rapid development of industrialization, equipment such as excavators and log grabs are also developing to diversification and function diversification, and the complex diversification of use working conditions puts unprecedented high requirements on the reliability of speed reducers matched with the equipment. The speed reducing mechanism for the existing common excavator and wood grabbing machine mainly comprises a large gear, a small gear and a conventional slewing bearing and a slewing speed reducer with a worm structure, wherein the defects of the large gear, the small gear and the conventional slewing bearing are mainly defects of incompact structure, easy pitting corrosion of a raceway after long-time use and the like, the defects of the later are that the device is not good in reliability when being subjected to impact load, the worm and the gear tooth part are prone to failure such as gluing, breaking and the like, and the raceway is prone to wear, pitting corrosion and the like after long-time use.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a rotation reduction gear for grabbing machine is provided to above-mentioned prior art, it adopts the copper alloy worm wheel to join in marriage the transmission structure of steel worm, and the gyration of supporting worm wheel adopts sliding friction's mode, has shock resistance, wear-resisting the veneer ability reinforce, and axle, radial bearing capacity are big, advantages such as simple to operate.

The utility model provides a technical scheme that above-mentioned problem adopted does: the utility model provides a grab quick-witted rotation reduction gear, it includes the base, the base includes axle housing and seat circle, be provided with the worm in the axle housing, be provided with the worm wheel in the seat circle, worm and worm wheel intermeshing, the worm adopts the steel material, the worm wheel adopts the copper alloy material.

Preferably, an upper connecting support is arranged above the worm wheel and connected with the base through a first bolt.

Preferably, the worm wheel upside is provided with round annular groove, it is provided with round annular sand grip to go up the linking bridge downside, annular sand grip cooperatees with annular groove.

Preferably, adopt little clearance fit between worm wheel and the base, between worm wheel and the last linking bridge.

Preferably, a mandrel is arranged below the worm wheel and connected with the worm wheel through a second bolt, and the mandrel and the base rotate relatively through a sliding shaft sleeve.

Preferably, a circle of steps are arranged on the lower side of the base, a circle of bosses are arranged on the periphery of the mandrel, and the bosses are placed on the steps.

Preferably, the sliding shaft sleeve is arranged between the step and the boss.

Preferably, the cross section of the sliding shaft sleeve is L-shaped.

Preferably, a plurality of lubricating oil grooves are formed in the upper plane and the lower plane of the worm wheel.

Compared with the prior art, the utility model has the advantages of:

1. the utility model adopts the structure that the copper alloy worm wheel is matched with the steel worm, and has better wear-resisting and gluing-resisting capability;

2. the utility model discloses slip friction all can be participated in respectively to many planes between worm wheel and casing, worm wheel and last linking bridge and dabber and casing, has increased slip friction pivoted reliability, and this slip friction's characteristics have also improved holistic shock resistance and axle radial bearing capacity in addition.

Drawings

Fig. 1 is a schematic structural diagram of a rotary speed reducer for a grab machine according to the present invention.

Wherein:

base 1

Axle housing 1.1

Seat ring 1.2

Worm 2

Worm wheel 3

Upper connecting bracket 4

First bolt 5

Mandrel 6

Second bolt 7

Sliding bush 8

Annular groove 9

Annular rib 10

Step 11

A boss 12.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1, the rotary speed reducer for a grab in this embodiment includes a base 1, where the base 1 includes a shaft housing 1.1 and a seat ring 1.2, a worm 2 is disposed in the shaft housing 1.1, a worm wheel 3 is disposed in the seat ring 1.2, the worm 2 and the worm wheel 3 are engaged with each other, the worm 2 is made of steel, the worm wheel 3 is made of copper alloy, an upper connecting bracket 4 is disposed above the worm wheel 3, the upper connecting bracket 4 is connected with the base 1 through a first bolt 5, a spindle 6 is disposed below the worm wheel 3, the spindle 6 is connected with the worm wheel 3 through a second bolt 7, and the spindle 6 and the base 1 rotate relatively through a sliding shaft sleeve 8;

a circle of annular groove 9 is formed in the upper side of the worm wheel 3, a circle of annular convex strip 10 is arranged on the lower side of the upper connecting support 4, and the annular convex strip 10 is matched with the annular groove 9;

small clearance fit is adopted between the worm wheel 3 and the base 1 and between the worm wheel 3 and the upper connecting bracket 4, so that stable transmission and axial positioning are realized;

a circle of steps 11 are arranged on the lower side of the base 1, a circle of bosses 12 are arranged on the periphery of the mandrel 3, and the bosses 12 are placed on the steps 11;

the sliding shaft sleeve 8 is arranged between the step 11 and the boss 12;

the cross section of the sliding shaft sleeve 8 is L-shaped;

and a plurality of lubricating oil grooves are formed in the upper plane and the lower plane of the worm wheel 3.

In addition to the above embodiments, the present invention also includes other embodiments, and all technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.

Claims

1. The utility model provides a rotary reduction gear for grabbing machine which characterized in that: it includes base (1), base (1) is including axle housing (1.1) and seat circle (1.2), be provided with worm (2) in axle housing (1.1), be provided with worm wheel (3) in seat circle (1.2), worm (2) and worm wheel (3) intermeshing, worm (2) adopt the steel material, worm wheel (3) adopt the copper alloy material.

2. The rotary reducer for a grab according to claim 1, wherein: an upper connecting support (4) is arranged above the worm wheel (3), and the upper connecting support (4) is connected with the base (1) through a first bolt (5).

3. The rotary reducer for a grab according to claim 2, wherein: worm wheel (3) upside is provided with round annular groove (9), it is provided with round annular sand grip (10) to go up linking bridge (4) downside, annular sand grip (10) cooperate with annular groove (9).

4. The rotary reducer for a grab according to claim 2, wherein: and small clearance fit is adopted between the worm wheel (3) and the base (1) and between the worm wheel (3) and the upper connecting bracket (4).

5. The rotary reducer for a grab according to claim 1, wherein: the worm wheel (3) below is provided with dabber (6), dabber (6) are connected with worm wheel (3) through second bolt (7), carry out relative rotation through slip axle sleeve (8) between dabber (6) and base (1).

6. The rotary reducer of claim 5, wherein: the base (1) downside is provided with round step (11), dabber (6) periphery sets up round boss (12), boss (12) rest on step (11).

7. The rotary reducer of claim 5, wherein: the sliding shaft sleeve (8) is arranged between the step (11) and the boss (12).

8. The rotary reducer of claim 5, wherein: the cross section of the sliding shaft sleeve (8) is L-shaped.

9. The rotary reducer for a grab according to claim 1, wherein: and a plurality of lubricating oil grooves are formed in the upper plane and the lower plane of the worm wheel (3).