CN204459059U - A kind of bevel gear followup device - Google Patents

Abstract

The utility model provides a kind of bevel gear followup device and is made up of bevel gear, and the gear hole of bevel gear is provided with the key of one processing, and first is arranged in the step of gear hole without oily lining without oily lining and second.Integral type key in bevel gear hole can coordinate transmitting torque with corresponding axle, will be assembled in gear hole without oily lining, plays guide-localization effect when bevel gear is cooked longitudinal sliding motion on axle, and the frictional force effectively reduced, and wear-resisting.Compared with the similar functions mechanism such as traditional splined shaft, there is compact structure, assembling, change convenient, easy-maintaining, the features such as cost is low.

Description

A kind of bevel gear followup device

Technical field

The utility model is applied to driving mechanism, is specifically related to a kind of bevel gear followup device.

Background technique

In drive mechanism, gear is generally combined together by key and axle only can carry out transmitting torque.But in production practices sometimes except need gear while transmitting torque can also following device with axle longitudinal linkage.As fork lift truck.Gear except transmit by wind transmit that the moment of torsion come drives lifting to cup one hand in the other before the chest flexible, also need gear can follow lifting of cupping one hand in the other before the chest.Thus reach the expanding-contracting action that can carry out at any time cupping one hand in the other before the chest.Traditional splined shaft also can realize above function to a certain extent, but spline cost is high, and wear rate is high, once damage, repairs more difficult, needs integral replacing, and volume is large, takes up room large.

Summary of the invention

The technical problems to be solved in the utility model is to provide a kind of bevel gear followup device, effectively can solve the problem that bevel gear can be cooked linear longitudinal movement while transmitting torque on axle, and it is more compact to have structure, assemble and change more convenient, the advantage of longer service life.

Be provided with the key of Linear cut one processing in the gear hole that the utility model is achieved in that bevel gear in bevel gear followup device, the keyway on key and axle coordinates transmitting torque.Being assemblied in first in the inner circle of gear hole two ends respectively makes bevel gear can do free longitudinal sliding motion on axle without oily lining, by both having ensure that good leading role turn reduced surface friction drag without oily lining and axle transition fit without oily lining and second.First can be arranged on the upper and lower two ends of gear hole without oily lining and second without oily lining is arranged on step.

Processed by special material without oily lining, there is the characteristic that hardness is low, become in friction pair and hold mill part, thus make the friction that produces between itself and component less, reduce wear.Even if after wearing and tearing, usually can only change without oily lining, and without the need to integral replacing.

Gear hole easy to process, structure is more compact, convenient and axle with the use of, cost is low.Certainly this device is not limited to and is applicable to bevel gear, can also be used for the lifting structure linked that is elevated and stretches, the structures such as gearbox.

Accompanying drawing explanation

Fig. 1: the bevel gear sectional drawing of bevel gear followup device of the present utility model;

Fig. 2: the bevel gear stereogram of bevel gear followup device of the present utility model;

Fig. 3: bevel gear followup device of the present utility model without oily lining 3 dimensional drawing;

Fig. 4: the sectional view of the assembling without oily lining and bevel gear of bevel gear followup device of the present utility model;

Fig. 5: the solid figure of the assembling solid of bevel gear followup device of the present utility model.

Embodiment

Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following embodiment for illustration of the utility model, but is not used for limiting scope of the present utility model.

In bevel gear followup device as shown in Fig. 1,2 and 4, its boundary dimension of key being provided with the processing of Linear cut one in the gear hole of bevel gear 2 designs according to standards for gears handbook.Keyway on key and axle adopts gap fiting mode, also reduces surface of contact, reduce wearing and tearing while transmitting torque.Being assemblied in first in the inner circle of gear hole two ends respectively makes bevel gear can do free longitudinal sliding motion on axle without oily lining 3, by both having ensure that good leading role turn reduced surface friction drag without oily lining and axle transition fit without oily lining 1 and second.First can be arranged on the upper and lower two ends of gear hole without oily lining 1 and second without oily lining 3 is arranged on step.

As shown in Figure 5, be the utility model gear followup device schematic diagram.The front end and back end in bevel gear hole will be assembled to without oily lining, in bevel gear hole and without the surface that oily lining matches, adopt the identical grade of tolerance, thus ensure the cooperation without oily lining inner ring and axle.Together with subsequently bevel gear follower being assembled with axle.Keyway on bevel gear and the keyway on axle are worked good.Rotating bevel gear can with the rotation of moving axis.Slide up and down bevel gear, can slide very easily.

In the present embodiment, adopt professional standard part without oily lining, the device fabrication time can be reduced, improve and manufacture efficiency.

As can be seen from the above embodiments, the utility model bevel gear followup device, simple and compact for structure, installation, maintenance convenience.Cost is low.

The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model know-why; can also make some improvement and replacement, these improve and replace and also should be considered as protection domain of the present utility model.

Claims (2)

1. a bevel gear followup device, it is characterized in that, described bevel gear followup device is made up of without oily lining (3) without oily lining (1) and second bevel gear (2), first, the gear hole of bevel gear (2) is provided with the key of one processing, and first is assemblied in the inner circle of gear hole without oily lining (3) without oily lining (1) and second.

2. bevel gear followup device as claimed in claim 1, it is characterized in that, the upper and lower end of the gear hole of described bevel gear (2) is provided with step.