CN201053094Y

CN201053094Y - Connector on electric tamping pick

Info

Publication number: CN201053094Y
Application number: CNU2007201246023U
Authority: CN
Inventors: 魏虎; 罗建; 李红
Original assignee: Chongqing Yunda Machinery & Electronics Manufacturing Co Ltd
Current assignee: Chongqing Yunda Machinery & Electronics Manufacturing Co Ltd
Priority date: 2007-06-28
Filing date: 2007-06-28
Publication date: 2008-04-30
Anticipated expiration: 2017-06-28

Abstract

The utility model proposes a connector for electric tamping pick for protection, which comprises of an upper connector, a lower connector, a square connector, a square borehole jack, a bearing, etc. The upper connector is connected with a flexible shaft through the square connector, meanwhile the bearing is fixed on a vibrating rod body, the square borehole jack is integrated with the upper connector into a whole through threads, and the upper connector and the square borehole jack only rotate axially; the lower connector is integrated with a vibrating shaft into a whole, and the lower connector can make circumferential deflection at a narrow angle and a high frequency in the square borehole jack when making axial rotation. When the electric tamping pick is working, the flexible shaft and the bearing do not need making high-frequency deflection around an axle center, thereby greatly prolonging the service life of the flexible shaft and the bearing, and simultaneously enabling the electric tamping pick to start vibration easily.

Description

Connector on the electronic tamping pickaxe

Technical field

The utility model belongs to electronic tamping pickaxe technology, is specifically related to the electronic tamping pickaxe of miniature movable type that a kind of railway operation is used.

Background technology

Present electronic tamping pickaxe mainly adopts eccentric type focus or planetary friction formula focus.

The characteristics of eccentric type focus are: the centrifugal force of eccentric iron drives the pick vibration, thereby stirs ballast, and ballast transmits power mutually, forces ballast to flow.And this focus will make ballast be in flow regime, must possess two prerequisites: one is that enough exciting forces are arranged, and one is that ballast must be in looser state.Exciting force is not enough in case ballast aggregate is in dense state, and pick not only can not be stirred ballast aggregate and flow, and is clamped on the contrary, become a hinged support, the focus hammer vibration energy upwards discharges, and human body is formed very big vibration, so this working method is not suitable for the tamping pickaxe on the railway.

The characteristics of planetary friction formula focus are: do planetary motion along the pick inner conical surface in the time of the rotation of vibrating shaft high speed, produce in the relative motion and jump and impact pick inner conical surface, produce powerful dither, be decomposed into circular vibration and axial vibration, the former mainly acts on is the tamping ballast aggregate, and it is to help tamping pickaxe to insert down to make tamping operation more laborsaving that the latter mainly acts on.This focus is met the railway roadbed that hardens and can not existed by the dead phenomenon of folder, and this mode relatively is fit to the tamping pickaxe on the railway.

But no matter be eccentric type or the electronic tamping pickaxe of planetary friction formula, transmit the flexible axle and the bearing of focus, be in the duty of high frequency deflection, its life-span difficult prospect always.This is the ubiquitous defective of using at present of electronic tamping pickaxe.

The content of utility model

The purpose of this utility model is at existing electronic tamping pickaxe deficiency technically, on planet friction-type tamping pickaxe basis, design the connector on a kind of electronic tamping pickaxe, connect flexible axle on this connector, under connect vibrating shaft, when electronic tamping pickaxe is worked, avoid flexible axle, bearing around axle center high frequency deflection, thereby prolong the life-span of flexible axle, bearing greatly; Simultaneously, vibrating shaft again can free small angle deflection, is convenient to electronic tamping pickaxe and plays shake.

The technical solution of the utility model is as follows:

Connector on this electronic tamping pickaxe connects square toes, bearing, lower union joint and square hole cover by upper binding head and forms.Wherein, the upper end assembling of upper binding head connects square toes, be connected with flexible axle by connecting square toes, outside simultaneously radially fixing by two bearings and welding barred body, the square hole cover is become one by the lower end of screw thread and upper binding head, lower union joint is assemblied in the square hole cover, leaves certain clearance between the two, and connector connects as one by lower union joint and vibrating shaft.

Because the upper binding head of this connector radially is fixed in the welding barred body, can only be with respect to the solder bar axon to rotation, can not deflection, this is just avoided flexible axle to produce high frequency deflection, and flexible axle is the transfers moment of torsion only, thereby improves greatly the flexible axle life-span.The square hole cover drives lower union joint by square hole and rotates with upper binding head, flexible axle, lower union joint connects vibrating shaft, because square hole cover endoporus is a square hole, the part of lower union joint in the square hole cover also is square cylinder, the interior square hole of its size analogy borehole jack is slightly little, lower union joint can not rotate in the empty cover in side, can only allow the square hole cover drive rotation together, simultaneously, owing to leave certain clearance between lower union joint and the square hole cover, when rotating, lower union joint can also the deflection of low-angle ground together, makes the vibrating shaft also can high frequency deflection thus.Lower union joint and square hole cover are wear-resisting alloy steel and make through special thermal treatment, can withstand the high frequency extruding and indeformable.

This connector is used on the electronic tamping pickaxe, can brings following advantage:

1, after increasing connector below the flexible axle, no longer high frequency deflection of flexible axle is transfers torsion, has changed the working method of flexible axle, avoids flexible axle because of tired very fast fracture;

2, behind the employing connector, the bearing between flexible axle and vibrating shaft is no longer high frequency deflection also, just keeps vibrating shaft and the rotation down of welding barred body concentric, can prolong its application life greatly;

3, lower union joint can be at free small angle deflection in the square hole cover, so vibrating shaft also can free small angle deflection, makes the electronic tamping pickaxe can a very fast shake.

Description of drawings

Fig. 1 is the structural representation of this connector;

Fig. 2 is the structure principle chart that the electronic tamping pickaxe of this connector is installed.

The specific embodiment

Below in conjunction with accompanying drawing structural principle of the present utility model and working method are elaborated:

Referring to Fig. 1, this connector is made up of upper binding head 63, connection square toes 61, bearing 62, lower union joint 65 and square hole cover 64.In conjunction with Fig. 2 as seen, upper binding head 63 is connected with flexible axle 3 by connecting square toes 61, and transmitter shaft is to moment of torsion.Radially fixing by two bearings 62 and welding barred body 4 simultaneously, square hole cover 64 is become one by screw thread and upper binding head 61, and upper binding head 63, square hole overlap 64 and can only axially rotate.Lower union joint 65 connects as one with vibrating shaft 5, when axially rotating, lower union joint 65 can overlap low-angle high-frequency ground circumferential deflection in 64 at square hole, when electronic tamping pickaxe is worked, just avoided flexible axle, bearing must be around axle center high frequency deflection, thereby prolong the life-span of flexible axle, bearing greatly, simultaneously, also be convenient to electronic tamping pickaxe and play shake.

The structural principle of electronic tamping pickaxe that this connector is installed is referring to Fig. 2, this tamping pickaxe is to be used as power with threephase motor 1, adopt one-way clutch 2 to prevent counter-rotating, flexible axle 3 connects one-way clutch 2 and connector 6, the transfers moment of torsion, and connecting connector 6 on the vibrating shaft 5, when electronic tamping pickaxe is worked, do planetary motion along pick 7 inner conical surfaces when requiring the rotation of vibrating shaft high speed, produce in the relative motion and jump and impact pick inner conical surface, produce powerful dither.

Claims

1. the connector on the electronic tamping pickaxe is characterized in that, it is made up of upper binding head, connection square toes, bearing, lower union joint and square hole cover; The upper end assembling of upper binding head connects square toes, be connected with flexible axle on the electronic tamping pickaxe by connecting square toes, outside simultaneously radially fixing by the welding barred body on the electronic tamping pickaxe on two bearings and the electronic tamping pickaxe, the square hole cover is become one by the lower end of screw thread and upper binding head, lower union joint is assemblied in the square hole cover, leaves the gap between the two; Connector connects as one by the vibrating shaft on lower union joint and the electronic tamping pickaxe.