CN217323078U - Overhead traveling crane track expansion joint adjustment mechanism - Google Patents

Abstract

The utility model discloses an overhead traveling crane track expansion joint adjusting mechanism, which comprises two sections of tracks which are arranged oppositely, wherein the corresponding ends of the two sections of tracks are provided with extended butt joint parts, railheads at the two sides of the butt joint parts are arranged in a staggered way, a main expansion joint is formed between the ends of the two butt joint parts, and two sides of the main expansion joint are respectively provided with a track clamping plate; the butt joint part is provided with a plurality of bolt holes, two sides of the rail clamping plate are respectively provided with a plurality of kidney-shaped holes which are in one-to-one correspondence with the bolt holes on each butt joint part, and the two rail clamping plates and the two butt joint parts are respectively connected and fixed by bolts penetrating through the corresponding kidney-shaped holes and the corresponding bolt holes; four secondary expansion joints are respectively formed between the two ends of the two rail clamping plates and the rail heads on the two sides of the two butt joint parts. Use the utility model discloses can effectively avoid the overhead traveling crane track because of the big or expend with heat and contract with cold clearance that causes of temperature fluctuation, improve the stationarity that the overhead traveling crane moved on the track, reduce equipment failure rate, reduce equipment spare parts consumption, improve on-the-spot work efficiency, avoid the potential safety accident hazard that the power hop caused.

Description

Overhead traveling crane track expansion joint adjustment mechanism

Technical Field

The utility model relates to a crown block equipment technical field, concretely relates to crown block track expansion joint guiding mechanism.

Background

The overhead traveling crane is widely applied to various workshops, plays an important role in production, can be a necessary product for large-scale production workshops, and the rail of the overhead traveling crane is one of the most central parts. The length of a common workshop is hundreds of meters less and thousands of meters longer, so that the length of the rail is equivalent to that of the common workshop. Because the track receives weather influence great, great fluctuation also can appear in its expansion joint, and the track can cause the extension of certain degree because of expending with heat in summer, and the overhead traveling crane track can cause the shortening of certain degree because of shrinking with cold in winter. In order to ensure the normal use of the overhead travelling crane track, a gap with the length of about 50mm is reserved between the expansion track and the contraction track. At present, the commonly adopted solution is to connect the rails together through the clamping plates on the rails, as shown in fig. 1, the ends of two corresponding overhead traveling crane rails 1 'are provided with the matched Z-shaped expansion joints 4', and the two sides of the Z-shaped expansion joints 4 'are respectively provided with the connecting clamping plates 2' which can be adjusted and arranged on the two sides of the two overhead traveling crane rails 1 'through the high-strength bolts 3', but the structure has certain unreasonable and inconvenient maintenance and the like and has serious potential safety hazards, and the main performance is as follows:

1. in the running process of the overhead travelling crane, the end beam of the overhead travelling crane is damaged and deformed due to large vibration when passing through the expansion joint after long-time running;

2. when the overhead traveling crane runs over the rail expansion joint, the overhead traveling crane vibrates too much, which greatly affects the built-in bearings of the wheels and increases the consumption of wheel sets;

3. the deformation of the crown block track can cause potential safety hazards such as the rail gnawing of wheels in the running process of the crown block, the loosening and falling of a rail pressing device of the crown block track and the like;

4. when the overhead traveling crane runs over the rail expansion joint, huge impact is generated on the overhead traveling crane beam and the plant beam due to overlarge vibration, so that the plant beam structure is deformed;

5. when the overhead travelling crane runs across the track expansion joint, the jumping conductive sliding block of the overhead travelling crane jumps instantly due to huge vibration to cause sudden power failure, thereby seriously affecting the safe production;

6. the phenomena of track fracture, track surface collapse, excessive abrasion and the like caused by vibration when the overhead travelling crane runs through the track expansion joint;

7. the high-strength bolt at the expansion joint is frequently loosened and easily cut off;

8. the adjustment distance at the expansion joint is limited, and the field requirement cannot be met.

In summary, the expansion joints of the overhead travelling crane rail, which are commonly used, have serious influence on the safe production and can result in the shortened service life of the related equipment. Therefore, it is necessary to design an expansion joint structure to effectively solve the transition problem between the rail joints.

SUMMERY OF THE UTILITY MODEL

To the technical problem who exists among the background art, the utility model provides a crown block track expansion joint guiding mechanism can effectively avoid the crown block track because of the undulant clearance that causes with expend with heat and contract with cold of weather influence, improves the stationarity that the crown block moved on the track, reduces the fault rate of equipment, reduces equipment spare parts consumption, also improves on-the-spot work efficiency simultaneously, avoids the potential safety hazard that the power hop caused.

The technical scheme of the utility model for solving the technical problem as follows:

the utility model relates to an overhead traveling crane track expansion joint guiding mechanism, it includes two sections tracks that set up relatively, these two sections the corresponding tip of track all is provided with the butt joint portion that stretches out, the both sides railhead dislocation of butt joint portion sets up, forms main expansion joint between the tip of two butt joint portions, main expansion joint both sides are provided with the track splint respectively; the butt joint part is provided with a plurality of bolt holes, two sides of the rail clamping plate are respectively provided with a plurality of kidney-shaped holes which are in one-to-one correspondence with the bolt holes on each butt joint part, and the two rail clamping plates and the two butt joint parts are respectively connected and fixed by bolts penetrating through the corresponding kidney-shaped holes and the corresponding bolt holes; and four secondary expansion joints are formed between the two ends of the two rail clamping plates and the rail heads on the two sides of the two butt joint parts respectively.

Further, the width of the main expansion joint is twice of the width of the secondary expansion joint.

Furthermore, two oblique downward transition slopes are respectively arranged between two ends of the two rail clamping plates and the rail heads corresponding to two sides of the two butt joint parts.

Furthermore, transition slopes between the two rail clamping plates and the corresponding rail heads on the two sides of the two butt joint parts are symmetrically arranged by 10-15-degree chamfers.

Further, the bolt holes are arranged in a vertically staggered mode.

Furthermore, the cross section of the rail clamping plate is L-shaped.

Furthermore, the radian of the upper surface of the rail clamping plate is the same as that of the rail surface at the corresponding position of the rail, and the outer side surface of the rail clamping plate is consistent with the rail waist processing plane of the rail.

Furthermore, the butt joint part of the main expansion joint and each secondary expansion joint and the bottom of the rail clamp plate are provided with high-temperature-resistant rail backing plates.

Further, the high-temperature-resistant track backing plate is a rubber pad.

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

(1) the utility model discloses a crown block track expansion joint adjustment mechanism novel in design, compact structure, reasonable can make the overhead traveling crane operation transition steadily through main expansion joint and each expansion joint that form, effectively eliminate vibrations, the phenomenon of jumping electricity that produces in the overhead traveling crane operation process, avoid the equipment hidden danger that huge impact brought, the noise reduction, extension track life and reduction wheel consumption, guarantee overhead traveling crane operation safety;

(2) the adjusting mechanism for the expansion joint of the overhead traveling crane track has the characteristics of convenient manufacture and installation, low manufacture cost and high bearing strength, and can meet the expansion requirements of various types of tracks;

(3) the track clamping plate of the overhead traveling crane track expansion joint adjusting mechanism is installed in a staggered mode, when a wheel passes through the track expansion joint, two thirds of track surfaces are in contact with the wheel tread at any position of the track expansion joint, and the contact area and the contact strength are guaranteed;

(4) the adjusting mechanism for the expansion joint of the overhead traveling crane track has the advantages of convenient installation, disassembly and adjustment, simple inspection and treatment and convenient conditions for adjustment and replacement in the future;

(5) overhead traveling crane track expansion joint guiding mechanism have flexible scope great, satisfy all kinds of operating mode conditions's use, use the quantity that can suitably reduce the track expansion joint in longer factory building, promote orbital stability.

Drawings

Fig. 1 is a schematic view of a conventional expansion joint connection structure of a crown block rail;

fig. 2 is a schematic top view of a conventional overhead traveling crane rail expansion joint connection structure;

FIG. 3 is a schematic structural view of the present invention;

fig. 4 is a schematic top view of the present invention;

FIG. 5 is a schematic sectional view of the expansion joint of the present invention;

fig. 6 is a schematic structural view of the middle rail of the present invention;

in the figure: 1', a crown block track; 2', connecting clamping plates; 3', a high-strength bolt; 4', Z-shaped expansion joints; 1. a track; 11. a docking portion; 12. a transition slope surface; 2. a rail clamp plate; 3. a bolt; 4. a kidney-shaped hole; 5. a main expansion joint; 6. a secondary expansion joint; 7. bolt holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", and the like used in the specification and claims of the present disclosure are used only to indicate relative positional relationships, and when the absolute position of a described object is changed, the relative positional relationships are changed accordingly; the terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The parts of the present invention not described in detail are the known techniques of those skilled in the art.

As shown in fig. 3 to 6, the utility model relates to an expansion joint adjusting mechanism for overhead traveling crane track, which comprises two sections of tracks 1 arranged oppositely, the upper part and the lower part of each section of track 1 are respectively a rail head and a rail bottom, the middle part is a rail waist, the corresponding ends of the two sections of tracks 1 are provided with extended butt joint parts 11, and the rail heads at the two sides of the butt joint parts 11 are arranged in a staggered way in front of each other; a main expansion joint 5 is formed between the end parts of the two butt joint parts 11, two sides of the main expansion joint 5 are respectively provided with a track clamping plate 2, and each track clamping plate 2 is positioned between the rail heads on the same side of the two sections of tracks 1, so that the main expansion joint 5 is positioned in the central position of the two track clamping plates 2; the butt joint part 11 is provided with a plurality of bolt holes 7, two sides of the rail clamp plates 2 are respectively provided with a plurality of waist-shaped holes 4 which are in one-to-one correspondence with the bolt holes 7 on each butt joint part 11, the two rail clamp plates 2 and the two butt joint parts 11 are respectively connected and fixed by penetrating the corresponding waist-shaped holes 4 and the bolt holes 7 through bolts 3, and the rail 1 can be conveniently adjusted through the connecting structure when expanding with heat and contracting with cold through the arrangement of the waist-shaped holes 4; four sub expansion joints 6 are respectively formed between two ends of the two rail clamping plates 2 and rail heads on two sides of the two butt joint parts 11, a structure that the four sub expansion joints 6 are arranged in a staggered mode is formed, the width values of the main expansion joint 5 and the sub expansion joints 6 can be set according to the specification and the installation requirement of the rail, and the width of the sub expansion joint 6 can be 1/2 of the width of the main expansion joint 5 in further priority.

In this embodiment, two transition slopes 12 which are inclined downwards are respectively arranged between two ends of the two rail clamping plates 2 and the rail heads corresponding to two sides of the two butt-joint parts 11, and the transition slopes 12 are preferably arranged symmetrically by 10-15 ° chamfers.

The crown block track expansion joint adjusting mechanism of the utility model adopts a gapless stable transition mode, so that the largest main expansion joint 5 between the tracks 1 is positioned at the central position of the track splint 2, the four secondary expansion joints 6 are positioned at the two sides of the tracks 1 in a shrinking and staggered way, the secondary expansion joints are half of the main expansion joints, the railheads at the two sides of all the expansion joints are symmetrically arranged by chamfering at 10-15 degrees, when the overhead traveling crane runs, the large wheel set of the overhead traveling crane stably transits each expansion joint in the modes of secondary expansion joint (rail transition), main expansion joint (rail clamp plate transition) and secondary expansion joint (rail transition), when the wheel passes through each expansion joint of the rail, at any place of the rail expansion joint, two thirds of the rail surface is in contact with the wheel tread, so that vibration and impact are reduced to the maximum extent, the crown block runs stably through the rail expansion joint, and vibration and impact are reduced.

In this embodiment, the bolt holes 7 are arranged in a vertically staggered manner, and the corresponding kidney-shaped holes 4 on the rail clamp plate 2 are also arranged in a correspondingly staggered manner, so that the connection strength between the rail clamp plate 2 and the butt joint part 11 is effectively increased.

In the embodiment, the cross section of the rail clamp plate 2 is L-shaped, the radian of the upper surface of the rail clamp plate is the same as that of the rail surface at the corresponding position of the rail 1, and the outer side surface of the rail clamp plate is fitted with the rail waist processing plane of the rail 1, so that the using effect of the mechanism is improved more effectively.

In this embodiment, form main expansion joint 5 and each time expansion joint 6's butt joint portion 11, track splint 2 bottom is provided with high temperature resistant track backing plate, further reduces vibrations. Further, the high-temperature-resistant track backing plate is a rubber pad.

Claims (9)

1. The utility model provides an overhead traveling crane track expansion joint guiding mechanism, includes two sections relative track (1) that set up, its characterized in that: the corresponding end parts of the two sections of rails (1) are provided with extended butt joint parts (11), rail heads on two sides of the butt joint parts (11) are arranged in a staggered mode, a main expansion joint (5) is formed between the end parts of the two butt joint parts (11), and rail clamping plates (2) are arranged on two sides of the main expansion joint (5) respectively; the butt joint parts (11) are provided with a plurality of bolt holes (7), two sides of the rail clamp plates (2) are respectively provided with a plurality of waist-shaped holes (4) which are in one-to-one correspondence with the bolt holes (7) on each butt joint part (11), and the two rail clamp plates (2) and the two butt joint parts (11) are respectively connected and fixed by bolts (3) penetrating through the corresponding waist-shaped holes (4) and the corresponding bolt holes (7); four sub expansion joints (6) are respectively formed between the two ends of the two rail clamping plates (2) and the rail heads on the two sides of the two butt joint parts (11).

2. The mechanism of claim 1, wherein the mechanism comprises: the width of the main expansion joint (5) is twice that of the secondary expansion joint (6).

3. The mechanism of claim 1 or 2, wherein the mechanism comprises: and oblique downward transition slope surfaces (12) are respectively arranged between the two ends of the two rail clamping plates (2) and the corresponding railheads on the two sides of the two butt joint parts (11).

4. The mechanism of claim 3, wherein the mechanism comprises: the transition slope surfaces (12) between the two rail clamping plates (2) and the corresponding rail heads at the two sides of the two butt joint parts (11) are symmetrically arranged by chamfering at 10-15 degrees.

5. The mechanism of claim 1, wherein the mechanism comprises: the bolt holes (7) are arranged in a vertically staggered mode.

6. The mechanism of claim 1 for adjusting the expansion joint of the crown block rail, wherein: the cross section of the rail clamping plate (2) is L-shaped.

7. The mechanism of claim 1, wherein the mechanism comprises: the radian of the upper surface of the rail clamping plate (2) is the same as that of the rail surface at the corresponding position of the rail (1), and the outer side surface of the rail clamping plate is consistent with the rail waist processing plane of the rail (1).

8. The mechanism of claim 1, wherein the mechanism comprises: the butt joint part (11) forming the main expansion joint (5) and each secondary expansion joint (6) and the bottom of the rail clamping plate (2) are provided with high-temperature-resistant rail backing plates.

9. The mechanism of claim 8, wherein: the high-temperature-resistant track backing plate is a rubber pad.

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