CN200978136Y

CN200978136Y - Coupling device for gear wheel and rack rail base

Info

Publication number: CN200978136Y
Application number: CN 200620164565
Authority: CN
Inventors: 陈保宗; 吴立忠; 刘庆华
Original assignee: Ningxia Tiandi Benniu Industrial Group Co Ltd
Current assignee: Ningxia Tiandi Benniu Industrial Group Co Ltd
Priority date: 2006-11-29
Filing date: 2006-11-29
Publication date: 2007-11-21
Anticipated expiration: 2016-11-29

Abstract

This utility model relates to a chainless haulage device for mine scraper conveyors, especially to a rack rail- rack rail carrier connective device in a rack rail (pin-rail) haulage device, which comprises a connective pin that goes through the rack rail (1) and the rack rail carrier (2). This utility model is characterized in that the connective pin comprises two parts with different diameters, the part with smaller diameter (3) projects outside a vertical plate welded with the rack rail carrier (2); a slot (7) is provided on the vertical plate for the part of the connective pin with smaller diameter (3) to go through; the width of the slot (7) is between the big diameter and the small diameter of the connective pin so that the connective pin enables axial one-way positioning; a via hole is provided on the part of the connective pin with smaller diameter (3) projecting outside the vertical plate (4), with a fastening pin provided inside. This utility model avoids completely the problem that adjacent connective pins on the same rack rail carrier share the same fastening pin and the fastening pin is easy to be broken or deformed under additional working force, which guarantees a reliable connection for the rack rail and the rack rail carrier.

Description

The connecting device of rack rails and rack rails seat

Technical field

The utility model relates to the chainless haulage device of mine flight conveyer, in particular for the rack rails in rack rails (pin row) draw gear and the connecting device of rack rails seat.

Background technology

The chainless haulage device of the present domestic and international well worker coal-face slat conveyer that generally uses, owing to be subjected to the restriction in each coordinative composition of equipments space of driving surface, in rack rails (pin row) draw gear that bears shearer haulage antagonistic force and operation guiding, fixed form about attachment pegs between rack rails and the rack rails seat, although it is different, but its effective active section is the same: promptly make circumferential groove at old man's side one end that leans on of attachment pegs, the elongated set pin that with an effective usable length is about 14 times of diameters passes the through hole that pre-sets on the rack rails seat from the rack rails seat outside one end, be stuck in feel in the circumferential groove of adjacent two attachment pegs, after the other end that passes the rack rails seat again pre-sets through hole, fix with another little pin; Same rack rails seat, a set pin is fixed two attachment pegs.

During, horizontal curvature vertical at slat conveyer; adjacent two attachment pegs on same rack rails seat; random site with coupled rack rails produces corresponding position, angle changes; and act on the same elongated set pin; make this set pin bear the power at random of different directions; cause set pin fracture or distortion easily at work; make attachment pegs lose axial location; gently then connect inefficacy between rack rails and the rack rails seat; heavy then attachment pegs that scurry out is interfered the guide slip shoe that damages coalcutter and is driven traction gear; cause big shutdown stopping production accident, reduced work efficiency.Be arranged on the rack rails seat in addition and weld the set pin of a side mutually with riser, also must clear up the poly-real coal of extruding when removing, obviously, it is bigger to install and fix the pin difficulty with feel, and material consumption is also bigger.

The utility model content

The purpose of this utility model provides that a kind of Assembly ﹠Disassembly is convenient, the location is reliable, and the equal connecting device of rack rails and rack rails seat preferably of its strength and stiffness.

The technical solution of the utility model is:

The connecting device of a kind of rack rails and rack rails seat, comprise the attachment pegs of passing rack rails and rack rails seat, its special feature is, described attachment pegs is made of different two sections of diameter, wherein thin one section is stretched out outside the riser that welds with the respective teeth rail chair, on this riser, have for one section thin slotted hole that stretches out of attachment pegs, thereby the width of this slotted hole makes the attachment pegs can unidirectional in the axial direction location between thick, the thin two sections diameter of attachment pegs, be provided with through hole on thin one section of attachment pegs outside stretching out riser, in this through hole, set pin be housed.

Wherein set pin is a spring pin.

Further, wherein the effective usable length of spring pin be diameter 4-6 doubly.

Further, wherein spring pin is the two ends with an open type donut spring, is contained in to constitute in the big end two decentraction blind holes of special-shaped pin.

Wherein between described riser and set pin, back-up ring is installed.

Further, wherein attachment pegs is the stepped shaft shape, and its shaft shoulder and back-up ring and set pin are located attachment pegs in the axial direction.

The technical solution of the utility model installs and fixes pin with available technology adopting with feel and becomes mounting spring pin under visual state, has reduced installation difficulty; Since the effective usable length of spring pin be diameter 4-6 doubly, reached the unification of strength and stiffness, guaranteed connecting link pin to reliable location.Because the back-up ring of attachment pegs axial location and spring pin are arranged on the riser outside, need not clear up the rack rails seat during dismounting and weld the poly-real coal of side extruding, convenient disassembly mutually with riser.

Description of drawings

Accompanying drawing 1 is a structural representation of the present utility model;

Accompanying drawing 2 is a structural representation of the present utility model;

Accompanying drawing 3 is that the K of Fig. 2 is to figure;

Accompanying drawing 4 is the enlarged drawing of I portion among Fig. 2.

The specific embodiment

The utility model is described in more detail below in conjunction with accompanying drawing:

As Fig. 1,2, shown in 4, rack rails seat that matches at known standard rack rails (pin row) and with it connects under the prerequisite of size constancy, attachment pegs between rack rails 1 and the rack rails seat 2 is processed into the ladder pin, promptly be the stepped shaft shape, constitute by different two sections of coaxial diameter, on the attachment pegs thick one section 5 with rack rails 1 and rack rails seat 2 between connect the connection quality of fit that pin-and-hole maintains the standard, with the transition shaft shoulder of size diameter variation place as an axial locating surface, and thin one section 3 of attachment pegs are as attachment pegs axial restraint usefulness, and the through hole of mounting spring pin is set.

Shown in Fig. 2,3,4, be provided with a cooresponding slotted hole 7 on the axis direction that connects pin-and-hole between rack rails 1 and rack rails seat 2 and the riser 4 that rack rails seat 2 welds mutually, the width of this slotted hole 7 (promptly among the figure slotted hole distance) between the upper and lower is less than attachment pegs between rack rails 1 and the rack rails seat 2 thick a section 5 and greater than thin one section 3 of attachment pegs.

In addition, spring pin can adopt the two ends with an open type donut spring, is contained in the big end two decentraction blind holes of special-shaped pin, produces the spring force with directivity, and special-shaped pin is locked on the attachment pegs that is fixed, and can not come off, and is simple and reliable, easy accessibility.

Earlier that attachment pegs is thin one section 3 is inserted the pin-and-hole that connects between rack rails 1 and the rack rails seat 2 from conveyer line of centers one side during installation, the transition shaft shoulder of size diameter variation place contacts with riser 4 medial surfaces, formation to connecting link pin to unidirectional location, pass thin one section 3 of the slotted hole 7 of riser 4 in attachment pegs then and load onto back-up ring 8 and spring pin, formation to connecting link pin to other direction location, just having finished attachment pegs this moment is the axial two-way location of location benchmark with riser 4 inside and outside sides.

During dismounting, pull down spring pin, back-up ring 8 earlier, slightly execute axial force at thin one section 3 of attachment pegs to one section 5 thick direction, attachment pegs can break away from the pin-and-hole that connects between rack rails 1 and the rack rails seat 2.

During work, along with slat conveyer is vertical, the variation of horizontal curvature angle, attachment pegs is moved about in the connection pin-and-hole of rack rails seat 2 and riser 4 slotted holes 7, and the back-up ring 8 and the spring pin that are fixed on the attachment pegs also change the subsidiary load that is produced with its corresponding angle of moving about, and be very little to the influence of spring pin.

Adopt the utility model, thoroughly eliminated the same set pin of adjacent two attachment pegs of same rack rails seat, the hidden danger that set pin ruptures or is out of shape easily under the effect of work subsidiary load has guaranteed the positive connection between rack rails and the rack rails seat.

Claims

1, the connecting device of a kind of rack rails and rack rails seat, comprise the attachment pegs of passing rack rails (1) and rack rails seat (2), it is characterized in that: described attachment pegs is made of different two sections of diameter, stretch out outside the riser (4) that welds with respective teeth rail chair (2) one section wherein thin (3), on this riser (4), have the slotted hole (7) that stretches out for a section thin (3) of attachment pegs, the width of this slotted hole (7) is thick between attachment pegs, thereby make the attachment pegs can unidirectional in the axial direction location between the thin two sections diameter, be provided with through hole on thin one section (3) of the attachment pegs outside stretching out riser (4), set pin (6) is housed in this through hole.

2, the connecting device of rack rails as claimed in claim 1 and rack rails seat is characterized in that: wherein set pin (6) is a spring pin.

3, the connecting device of rack rails as claimed in claim 2 and rack rails seat is characterized in that: wherein the effective usable length of spring pin be diameter 4-6 doubly.

4, the connecting device of rack rails as claimed in claim 3 and rack rails seat is characterized in that: wherein spring pin is the two ends with an open type donut spring, is contained in to constitute in the big end two decentraction blind holes of special-shaped pin.

5, the connecting device of rack rails as claimed in claim 1 and rack rails seat is characterized in that: wherein between described riser (4) and set pin (6) back-up ring (8) is installed.

6, as the connecting device of any described rack rails and rack rails seat in the claim 1 to 5, it is characterized in that: wherein attachment pegs is the stepped shaft shape, and its shaft shoulder and back-up ring (8) and set pin (6) are located attachment pegs in the axial direction.