CN202194674U - Hydraulic support trunnion connecting and fixing structure - Google Patents

Abstract

The utility model discloses a hydraulic support trunnion connecting and fixing structure, which relates to a trunnion connecting and fixing structure which is reliable for connecting, simple in structure and easy to assemble. The structure adopting the connection mode is characterized in that a pin hole is arranged at one end of the trunnion; the end of the trunnion is connected with a part to be connected through a pin axle; planes with certain distances are symmetrically milled at the other end of the trunnion from the end surface; grooves with certain distance from the planes are formed; and the width of the groove is decided according to the size of the part to be connected. The structure of the trunnion hole of the part to be connected is the same with that of the milled structure of the trunnion, so as to ensure that the trunnion can smoothly pass through a trunnion hole. The trunnion inserted into the part to be connected rotates by 90 degrees, the axial positioning is realized, and the trunnion connection is accomplished. The structure has the characteristics of being simple, good in positioning performance, and reliable in connection, and effectively reducing the labor time.

Description

A kind of hydraulic support gudgeon connects fixed structure

Technical field

The utility model relates to the mechanical connecting structure design field, is specifically related to a kind of syndeton of hydraulic support gudgeon.

Background technology

The connection of hydraulic support gudgeon is mainly used between the hydraulic support parts or support directly is connected with corresponding corollary equipment, and the reliability of connection directly influences the functional performance of connected component, and then influences the hydraulic support integral working.The appropriate design of connection and fixed structure can effectively promote connection reliability, guarantees correct location, the operate as normal of connected component.Simultaneously, under the condition that guarantees connection reliability, reduce connection retaining element quantity, simplify fit, improve dismounting efficient and can reduce labour hour to a certain extent, raise labour efficiency.

The fastening form of existing gudgeon mainly contains following two kinds of structures: referring to Fig. 1; A kind of mode is that gudgeon 2 one ends are linked to each other by union piece 1 with first through bearing pin; Second is welded with pin socket 5 on the union piece 3; Gudgeon axle shape one end inserts the pin socket centre bore and is connected part and reserves in the axis hole, then two identical square backing pins 6 is inserted in the backing pin hole, realizes connecting the location.The required workpiece of this fixed form is more, and needs the welding pin socket, is unfavorable for products perfection.Referring to Fig. 2, another kind of mode and first kind of mode are similar, and difference inserts U-shaped card 7 in the pin socket preformed groove for to change two square backing pins into U-shaped card 7, realizes the gudgeon stationary positioned.This two kinds of structures possibly cause the distortion of U-shaped card or square backing pin when bearing bigger axial force and moment of flexure, cause locate failure, reduce connection reliability; Simultaneously, this structure member is more, is unfavorable for the resource optimization of manufacturing.Therefore, design a kind of gudgeon connection fixed structure solid, simple in structure, that assembling is easy and have Practical significance.

Summary of the invention

The purpose of the utility model is to design a kind of hydraulic support gudgeon connection fixed structure reliable, simple in structure, that be easy to assemble that connects.

The technical scheme of the utility model is following:

A kind of hydraulic support gudgeon connects fixed structure, comprises that gudgeon and two are by union piece; Gudgeon one end has pin-and-hole, is connected by corresponding pin-and-hole on the union piece with first through bearing pin.It is characterized in that: the gudgeon other end begins vertically from axial end that symmetry mills out two planes, and radially leaves a circle gudgeon groove in the shaft shoulder position of gudgeon; Second is had the preformed hole that is connected with the axle head of gudgeon on the union piece, on said preformed hole, relying on gudgeon groove one face down bonding has pasting board, and said pasting board thickness is corresponding with the width dimensions of gudgeon groove, has the hole identical with the end surface shape of gudgeon on the pasting board; The axle head of gudgeon passes first by the hole of the preformed hole of union piece and pasting board, and the shaft shoulder on the gudgeon groove contacts with the pasting board face, axial location, and behind the gudgeon half-twist, pasting board sticks in the gudgeon groove, realizes the gudgeon and first being connected by union piece.

This structure has been abandoned multiplex's part locate mode, utilizes the axle head shape and the gudgeon groove structure of gudgeon self, adopts pasting board one its cooperation; Realize connecting and fix, polarization is good, connects reliable; Supporting capacity is stronger; Pasting board has the effect of pin socket or the capable card of U, helps simplifying working process, and realizes connecting fast; In addition, adopt this structure, the connection that can avoid fixed part rigging error and work distortion to cause was lost efficacy, and reduced dismounting difficulty phenomenon, simplified syndeton, and Rapid Realization connects fixing, increases work efficiency.

Description of drawings

Fig. 1 is the fixedly assembling sketch map of gudgeon of existing employing backing pin;

Fig. 2 fastens the assembling sketch map of gudgeon for existing employing U-shaped;

Fig. 3 is the assembling sketch map of the utility model;

Fig. 3 A is the A-A sectional view of Fig. 3;

Fig. 4 A, Fig. 4 B are the front view and the vertical view of gudgeon;

Fig. 4 C is the A-A sectional drawing of Fig. 4 A;

Fig. 5 is the pasting board front view.

Wherein: 1-first by union piece, 2-gudgeon, 21-plane, 22-gudgeon groove, 3-second by union piece, 4-master's muscle, 5-pin socket, 6-backing pin, 7-U shape card, 8-pasting board, 81-hole.

The specific embodiment

Specify below in conjunction with the specific embodiment of accompanying drawing the utility model.

Referring to Fig. 3 and Fig. 3 A, a kind of hydraulic support gudgeon connects fixed structure, and it comprises gudgeon 2, and structure is shown in Fig. 4 A, Fig. 4 B and Fig. 4 C.Gudgeon one end has pin-and-hole, is gone up corresponding pin-and-hole through bearing pin and first by union piece 1 (promptly drawing back slide jack) and is connected.The other end begins symmetrical vertically two planes 21 that mill out certain distance from axial end, and radially leaves a circle gudgeon groove 22 in the shaft shoulder position of gudgeon.Second is had the preformed hole that is connected with the axle head of gudgeon 2 on the union piece 3 (being that support needs the union piece gusset), and has certain clearance, guarantees that gudgeon can pass part gudgeon hole smoothly.On said preformed hole, rely on gudgeon groove 22 1 face down bondings pasting board 8 (structure such as Fig. 5) is arranged; Pasting board 8 thickness are corresponding with the width dimensions of gudgeon groove 22; Pasting board 8 inside have the hole 81 identical with the gudgeon end surface shape that mills out; The diameter dimension Φ b in hole is slightly larger than shaft diameter size Φ a, and this pasting board has the effect of backing pin or the capable card of U.The axle head of gudgeon passes second by hole on preformed hole on the union piece 3 and the pasting board, and the shaft shoulder of gudgeon contacts with the pasting board face, realizes the axially location of a last direction.With inserting second by the gudgeon half-twist of union piece 3, pasting board 8 promptly sticks in the gudgeon groove 22, realizes another axial direction location, finally accomplishes gudgeon and fixes in the connection of two parts.

Protection scope of the present invention is not limited to the above embodiments, and obviously, those skilled in the art can carry out various changes and distortion and do not depart from the scope of the present invention and spirit the present invention.If these changes and distortion belong in the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and is out of shape interior.

Claims (1)

1. a hydraulic support gudgeon connects fixed structure, comprises that gudgeon (2) and two are by union piece; Gudgeon (2) one ends have pin-and-hole, are gone up corresponding pin-and-hole through bearing pin and first by union piece (1) and are connected; It is characterized in that: gudgeon (2) other end begins vertically from axial end that symmetry mills out two planes (21), and radially leaves a circle gudgeon groove (22) in the shaft shoulder position of gudgeon; Second is had the preformed hole that is connected with the axle head of gudgeon (2) on the union piece (3); On said preformed hole, rely on gudgeon groove (22) one face down bondings pasting board (8) is arranged; Said pasting board thickness is corresponding with the width dimensions of gudgeon groove, has the hole identical with the end surface shape of gudgeon on the pasting board; The axle head of gudgeon passes first by the hole of the preformed hole of union piece and pasting board, and the shaft shoulder on the gudgeon contacts with the pasting board face, axial location, and behind the gudgeon half-twist, pasting board sticks in the gudgeon groove, realizes the gudgeon and first being connected by union piece.

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