CN217323081U - Single track hangs rotatory cross switch - Google Patents

Abstract

The utility model relates to a rotary cross turnout of a monorail crane, belonging to the technical field of monorail crane turnout; the lifting rail shifting fork rod is rotationally connected to the top frame, the lower end of the middle main shaft is inserted into an annular groove in the outer side of the sliding sleeve, the upper end of the lifting rail shifting fork rod is connected with a telescopic rod of a first pneumatic push rod, the outer end of the push rod is hinged to a telescopic rod of a second pneumatic push rod, and the cylinder bottoms of the first pneumatic push rod and the second pneumatic push rod are hinged to the top frame; the problem of present chevron shape switch with high costs, the fault rate is high also can not realize the cross completely simultaneously is solved.

Description

Single track hangs rotatory cross switch

Technical Field

The utility model belongs to the technical field of single track hanging switch, concretely relates to single track hangs rotatory cross switch.

Background

The monorail crane cross turnout is a part of a monorail crane rail, mainly used for the monorail crane rail to be crossed forever, the monorail crane turnout in the current market is a herringbone turnout, and one end of the monorail crane cross turnout is arranged in the monorail crane cross turnout, and the monorail crane cross turnout is arranged at the other end of the monorail crane cross turnout. Run into the crossroad and all adopt the situation of two herringbone switch docks, realize alternately, it is also high with high costs fault rate, two switch butt joint length can not realize the crossroad completely again moreover, consequently the utility model discloses the crisscross design of cross tunnel track has just been satisfied completely. The mutual switching of two vertical directions is realized, and the direction that is obstructed when switching is equipped with the car arrester in addition, prevents that the single track from hanging to pass through.

SUMMERY OF THE UTILITY MODEL

The utility model overcomes the defects of the prior art and provides a monorail crane rotary cross turnout; the problem of present chevron shape switch with high costs, the fault rate is high also can not realize the cross completely simultaneously is solved.

In order to achieve the purpose, the utility model is realized by the following technical scheme.

A single-rail-crane rotary cross turnout comprises a top frame, wherein the center of the top frame is rotatably connected with a vertical middle main shaft, four directions of the lower end surface of the top frame are respectively and uniformly and fixedly provided with an end rail, the lower end of the middle main shaft is inserted into a sliding sleeve, the sliding sleeve is fixedly connected with the center of the upper end surface of a rotary rail, two ends of the outer side surface of the sliding sleeve are respectively provided with a vertical sliding groove, the outer side surface of the middle main shaft is symmetrically provided with two sliding rods which are inserted into the sliding grooves, the outer side surface of the sliding sleeve is provided with an annular groove, the top frame is rotatably connected with a rail lifting shifting fork rod, two fork parts of the rail lifting shifting fork rod are respectively and rotatably connected with a sliding block, the two sliding blocks are clamped in the annular groove, the upper end of the rail lifting shifting fork rod is connected with a telescopic rod of a first pneumatic push rod through a rope, and the cylinder bottom of the first pneumatic telescopic push rod is hinged with the inner side of the top frame, the outer side surface of the middle main shaft is provided with a push rod, the outer end of the push rod is hinged with a telescopic rod of a second pneumatic push rod, and the cylinder bottom of the second pneumatic push rod is hinged with the top frame.

Furthermore, the top frame is of a horizontally arranged frame structure, the periphery of the top frame is of a regular octagonal structure formed by welding H-shaped steels, the inner side of the top frame is of a cross structure formed by welding four H-shaped steels, a top shaft sleeve which is through up and down is welded at the center of the cross structure, and hoisting points are welded on the upper end faces of the four H-shaped steels of the cross structure respectively.

Furthermore, the end rail comprises an end rail and a fixing plate, the end rail is an I-shaped steel rail, and the extending directions of the four end rails are the same as the extending directions of the four I-shaped steels in the cross structure; the fixed plate comprises a vertical plate and a transverse plate, the vertical plate is welded on the upper end face of the end rail and consistent with the extending direction of the end rail, the upper end of the vertical plate is welded with the middle part of the lower end face of the transverse plate, bolt holes are formed in the transverse plate, and bolts penetrate through the bolt holes in the transverse plate and then are in threaded connection with the cross structure of the top frame.

Furthermore, the vertical plate of the fixing plate is respectively and rotatably connected with a car arrester, each car arrester respectively comprises two car arresting plates and a lever plate, the two car arresting plates and the lever plate are rotatably connected to the vertical plate, each car arresting plate comprises a first stop plate and a second stop plate, the two first stop plates are respectively and rotatably connected to two sides of the vertical plate through rotating shafts, the second stop plate is fixedly connected to one side end face of the first stop plate and is perpendicular to the first stop plates, and the first stop plates are further provided with arc-shaped grooves.

Further, the lever plate is of a U-shaped structure and comprises two support legs, two starting rods and a connecting rod, the two support legs are symmetrically arranged on two sides of the vertical plate, one ends of the support legs exceed the inner side one end of the vertical plate, the connecting rod is located between the two ends, beyond the ends, far away from the connecting rod, of the two support legs, the starting rods are fixedly arranged on the outer end faces of one ends respectively, the two support legs are connected to the vertical plate through rotating shafts in the middle, and the two starting rods of the support legs are located inside circular arc-shaped grooves in the two first stop plates respectively.

Furthermore, the upper end face of the rotating rail is provided with a vertical rotating plate, the sliding sleeve is fixedly arranged in the middle of the rotating plate, the two ends of the rotating plate are respectively provided with a slot, after the rotating rail is completely butted with the end rails on the two sides, the connecting rods of the lever plates on the end rails on the two sides are positioned in the two slots of the rotating plate, and the top surfaces of the slots press the connecting rods downwards.

Furthermore, the rail lifting shifting fork rod is of an L-shaped structure and comprises a vertical section and a horizontal section, the vertical section penetrates through the top frame, and the horizontal section is positioned below the top frame; the vertical section is of a rod-shaped structure, the horizontal section is of a herringbone structure, the lower end of the vertical section is fixedly connected with one end of the horizontal section, and one side of the horizontal section, which is far away from the vertical section, is provided with two branch parts; two support lugs are fixedly arranged on a bottom plate of the top frame, a rotating shaft is arranged at the joint of the vertical section and the horizontal section, and the rotating shaft is rotatably connected in the two support lugs; the two sliding blocks are respectively and rotatably connected to the inner sides of the two branch parts of the horizontal section.

Furthermore, the upper end of the vertical section is rotatably connected with a fixed pulley, a pin shaft seat is fixedly arranged at the upper end, close to the fixed pulley, of the outer side face of the vertical section, a rope wheel pin shaft is inserted into the pin shaft seat, one end of a telescopic rod of the first pneumatic push rod is fixed with one end of a rope, and the other end of the rope is fixedly connected with the rope wheel pin shaft after being turned by the fixed pulley.

Furthermore, the end face of one end of the inner side of the end rail is of an inclined plane structure, and the lower end of the inclined plane inclines towards the center of the cross turnout; the both sides terminal surface of revolving rail is the inclined plane structure, and the inclined plane lower extreme inclines towards the inboard of revolving rail.

Furthermore, the end rail further comprises a connecting plate, the connecting plate is welded at the edge of the outer side of the upper end face of the end rail, bolt holes are formed in the connecting plate, the connecting plate is perpendicular to the extending direction of the end rail, one end of the outer side of the end rail is butted with the monorail hanging rail, the connecting plate on the end rail is connected with the connecting plate on the monorail hanging rail through bolts, and therefore the cross turnout is connected with the existing monorail hanging rail.

The utility model discloses produced beneficial effect for prior art does:

the utility model provides a monorail crane rotary cross turnout, can realize the interconversion of two vertical directions through two pneumatic push rods, more convenient and faster, and simultaneously, the cost and the failure rate are also reduced; and in the process of conversion, the car arrester can be put down in time in the direction of the non-communicating car, so that the single-track crane is prevented from passing through the non-communicating direction, and the running of the single-track crane is safer.

Drawings

The invention will be described in further detail with reference to the accompanying drawings:

fig. 1 is a first perspective view of the whole body of the present invention;

FIG. 2 is a second perspective view of the present invention;

FIG. 3 is a left side view of the utility model as a whole;

figure 4 is an elevational view of the invention as a whole;

fig. 5 is a top view of the utility model as a whole;

fig. 6 is an overall bottom view of the present invention;

FIG. 7 is a sectional view A-A of FIG. 6;

FIG. 8 is a cross-sectional view B-B of FIG. 6;

FIG. 9 is a first perspective view of the end rail;

FIG. 10 is a second schematic perspective view of the end rail;

FIG. 11 is a front view of the end rail;

FIG. 12 is a side view of the end rail;

FIG. 13 is a schematic view of the connection of the rotating rail to the intermediate spindle, the first pneumatic ram, and the second pneumatic ram;

FIG. 14 is a front view of the connection of the rotating rail to the intermediate spindle, the first pneumatic ram, and the second pneumatic ram;

FIG. 15 is a side view of the connection of the rotating rail to the intermediate spindle, the first pneumatic ram, and the second pneumatic ram;

FIG. 16 is a top view of the connection of the rotating rail to the intermediate spindle, the first pneumatic ram, and the second pneumatic ram;

FIG. 17 is a perspective view of the connection of the swivel rail to the end rails on both sides;

FIG. 18 is a front view of the connection of the swivel rail to the side end rails;

wherein, 1 is a top frame, 2 is a middle main shaft, 3 is an end rail, 4 is a rotating rail, 5 is a car arrester, 6 is a first pneumatic push rod, 7 is a second pneumatic push rod, 8 is a top shaft sleeve, 9 is a hoisting point, 10 is an end rail, 11 is a fixed plate, 12 is a vertical plate, 13 is a transverse plate, 14 is a connecting plate, 15 is a first stop plate, 16 is a second stop plate, 17 is a support arm, 18 is a connecting rod, 19 is a starting rod, 20 is a limit plate, 21 is a sliding sleeve, 22 is a sliding groove, 23 is an annular groove, 24 is a sliding block, 25 is a rail-lifting fork lever, 26 is a static pulley, 27 is a rope pulley pin shaft, 28 is a rope, 29 is a push rod, 30 is a rotating plate, and 31 is a groove.

Detailed Description

In order to make the technical problem, technical scheme and beneficial effect that the utility model will solve more clearly understand, combine embodiment and attached drawing, it is right to go on further detailed description the utility model discloses. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention. The technical solution of the present invention is described in detail below with reference to the embodiments and the drawings, but the scope of protection is not limited thereto.

As shown in fig. 1-18, the utility model provides a rotatory cross switch of monorail crane, including top frame 1, end rail 3, middle main shaft 2, swivel rail 4, car arrester 5, pneumatic push rod.

The top frame 1 is a horizontally arranged frame structure, the periphery of the top frame is a regular octagonal structure formed by welding H-shaped steel, the inner side of the top frame is a cross structure formed by welding four H-shaped steel, a top shaft sleeve 8 which is through up and down is welded at the center of the cross structure, and the edges of the four end parts of the cross structure are respectively welded with the middle parts of the four spaced inner side surfaces of the regular octagonal structure. The hoisting points 9 are welded on the upper end faces of the four I-shaped steels in the cross structure respectively, the distance between each hoisting point 9 and the top shaft sleeve 8 at the center is equal, and the cross turnout can be fixedly installed underground for use through the hoisting points 9. Steel plates are welded to the upper end surface and the lower end surface of the top frame 1.

The top shaft sleeve 8 at the center is separated from the top and the bottom at the middle height, the four I-shaped steels in the cross structure are provided with through grooves at the positions connected with the separation position of the top shaft sleeve 8, and the through grooves are communicated with the separation position of the top shaft sleeve 8.

Middle main shaft 2 is vertical pegs graft inside top axle sleeve 8, and the top of middle main shaft 2 is provided with the anticreep post, and the external diameter of anticreep post is greater than the internal diameter of top axle sleeve 8, can make middle main shaft 2 install inside top axle sleeve 8 through setting up the anticreep post.

The number of the end rails 3 is four, the end rails are respectively and fixedly arranged at one end of the outer side of the lower end face of the four I-shaped steels of the cross structure of the top frame 1, and the distances from the four end rails 3 to the top shaft sleeve 8 are equal.

The end rail 3 comprises an end rail 10, a fixing plate 11 and a connecting plate 14. The end rails 10 are i-steel rails, and the extending directions of the four end rails 10 are the same as the extending directions of the four i-steel rails of the cross structure; the fixing plate 11 comprises a vertical plate 12 and a transverse plate 13, the vertical plate 12 is vertically welded on the upper end surface of the end rail 10 and is consistent with the extending direction of the end rail 10, the upper end of the vertical plate 12 is welded with the middle part of the lower end surface of the transverse plate 13, the transverse plate 13 is provided with bolt holes, and bolts penetrate through the bolt holes in the transverse plate 13 and then are in threaded connection with the cross structure of the top frame 1, so that the end rail 3 is fixed on the top frame 1; the connecting plate 14 is welded at the outer edge of the upper end surface of the end rail 10, bolt holes are formed in the connecting plate 14, the connecting plate 14 is perpendicular to the extending direction of the end rail 10, one end of the outer side of the end rail 10 is butted with the monorail hanging rail, the connecting plate 14 on the end rail 10 is connected with the connecting plate 14 on the monorail hanging rail through bolts, and therefore the cross turnout is connected with the existing monorail hanging rail.

The end surface of one end of the inner side of the end rail 10 is of an inclined plane structure, and the lower end of the inclined plane inclines towards the center of the cross turnout. The middle part of the lower end face of the end rail 10 is provided with a clamping groove along the extending direction of the lower end face, one end of the inner side of the clamping groove is fixedly provided with a limiting plate 20, and the limiting plate 20 exceeds the inner side edge of the end rail 10.

The vertical plates 12 of the fixed plate 11 are respectively connected with a car arrester 5 in a rotating way. Each car arrester 5 comprises two car arrester plates and a lever plate, and the two car arrester plates and the lever plate are rotatably connected to each vertical plate 12.

Each car stopping plate comprises a first stopping plate 15 and a second stopping plate 16, the two first stopping plates 15 are respectively connected to two sides of the vertical plate 12 in a rotating mode through rotating shafts, the second stopping plate 16 is fixedly connected to one side end face of each first stopping plate 15, and the second stopping plate 16 is perpendicular to the first stopping plates 15. The first stop plate 15 is also provided with a circular arc-shaped groove.

The lever plate is of a U-shaped structure and comprises two supporting legs, two starting rods 19 and a connecting rod 18, the two supporting legs are symmetrically arranged on two sides of the vertical plate 12, one ends of the supporting legs exceed the inner side one end of the vertical plate 12, the connecting rod 18 is located between the ends, exceeding the two supporting legs, and the two supporting legs are fixedly connected through the connecting rod 18. The outer end faces of one ends of the two support legs, which are far away from the connecting rod 18, are respectively and fixedly provided with an actuating rod 19, the two actuating rods 19 are symmetrically arranged, and the actuating rods 19 are parallel to the connecting rod 18. The two supporting legs are of S-shaped structures, a rotating shaft is arranged in the middle of each supporting leg, and the supporting legs are rotatably connected to the vertical plates 12 through the rotating shafts.

The ends of the two legs of the lever plate, which are far away from the connecting rod 18, are located inside the two first stop plates 15, respectively, and the actuating levers 19 on the two legs are located inside the circular arc-shaped grooves on the two first stop plates 15, respectively.

When the connecting rod 18 of the lever plate is not in an external force state, the connecting rod 18 is at the highest point, the vehicle blocking plate is in a free state, and the second stop plate 16 is in a vertical state, so that a monorail crane on the monorail crane rail can be prevented from passing through; when the connecting rod 18 of the lever plate moves downwards under the action of external force, one end of the actuating rod 19 on the two supporting arms 17 rotates upwards around the rotating shaft to drive the two car stopping plates to rotate upwards, so that the two second stopping plates 16 rise upwards, and the monorail crane on the monorail crane rail can enter the cross turnout.

The rotating rail 4 is located below the top frame 1, the end faces of two sides of the rotating rail 4 are of an inclined plane structure, and the lower end of the inclined plane inclines towards the inner side of the rotating rail 4. The middle part of the upper end surface of the rotating rail 4 is provided with a vertical sliding sleeve 21, and the lower end of the middle main shaft 2 is inserted in the sliding sleeve 21. Two sides of the sliding sleeve 21 are symmetrically provided with a vertical sliding groove 22, and the sliding groove 22 is communicated with the inside of the sliding sleeve 21. Two sliding rods are symmetrically arranged on two sides of the lower end of the middle main shaft 2 and are respectively positioned in the two sliding grooves 22, so that the middle main shaft 2 and the sliding sleeve 21 can slide relatively in the vertical direction, and the sliding sleeve 21 and the middle main shaft 2 cannot be separated from each other due to the limitation of the sliding rods. When the middle spindle 2 rotates, the sliding sleeve 21 and the rotating rail 4 can rotate synchronously with the middle spindle 2 due to the driving of the sliding rod.

The outer side of the sliding sleeve 21 is provided with an annular groove 23 near the upper edge.

A vertical rail-lifting shifting fork rod 25 is arranged inside the top frame 1, the rail-lifting shifting fork rod 25 is of an L-shaped structure and comprises a vertical section and a horizontal section, the vertical section penetrates through the top frame 1, and the horizontal section is located below the top frame 1. The vertical section is of a rod-shaped structure, the horizontal section is of a herringbone structure, the lower end of the vertical section is fixedly connected with one end of the horizontal section, and one side of the horizontal section, which is far away from the vertical section, is provided with two branch parts. Two support lugs are fixedly arranged on the bottom plate of the top frame 1, a rotating shaft is arranged at the joint of the vertical section and the horizontal section, and the rotating shaft is rotatably connected in the two support lugs, so that the rail lifting fork rod 25 can rotate on the top frame 1.

Two inner sides of the branch parts of the horizontal section of the rail lifting shifting fork rod 25 are respectively provided with a sliding block 24, the sliding blocks 24 are rotatably connected with the branch parts, and the two sliding blocks 24 are respectively clamped in the annular groove 23 on the outer side surface of the sliding sleeve 21. The slider 24 can slide in the annular groove 23, and the slider 24 cannot be disengaged from the annular groove 23 due to the restriction of the rail lifting fork rod 25.

The upper end of the vertical section is rotatably connected with a static pulley 26, the upper end of the outer side surface of the vertical section close to the static pulley 26 is fixedly provided with a pin shaft seat, and a rope wheel pin shaft 27 is inserted in the pin shaft seat. A first pneumatic push rod 6 is arranged inside the top frame 1, one end of the bottom of the first pneumatic push rod 6 is hinged to the inner side face of the regular octagonal structure of the top frame 1, one end of a telescopic rod is fixed to one end of a rope 28, and the other end of the rope 28 is fixedly connected with a rope wheel pin shaft 27 after being turned by a fixed pulley 26.

Through the shrink of first pneumatic push rod 6, can control and lift rail shifting fork rod 25 and rotate around the pivot, lift the horizontal segment of rail shifting fork rod 25 like this and upwards rotate, drive two sliders 24 upward movement, slider 24 drives sliding sleeve 21 upward movement, and sliding sleeve 21 drives swivel rail 4 upward movement, has just so realized lifting of swivel rail 4.

A horizontal push rod 29 is fixedly arranged on the outer side surface of the middle main shaft 2, and the push rod 29 is positioned at the middle height separation position of the top shaft sleeve 8. A horizontal second pneumatic push rod 7 is arranged inside the top frame 1, one end of the cylinder bottom of the second pneumatic push rod 7 is hinged with the inner side face of the regular octagonal structure of the top frame 1, and one end of a telescopic rod of the second pneumatic push rod 7 is hinged with one end, far away from the middle main shaft 2, of the push rod 29. The rotation of the middle main shaft 2 inside the top shaft sleeve 8 can be realized through the extension and contraction of the second pneumatic push rod 7. When the second pneumatic push rod 7 is in a telescopic state and an extending state, the rotation angle of the middle main shaft 2 is 90 degrees.

Since the rotary rail 4 rotates together with the intermediate main shaft 2, when the intermediate main shaft 2 rotates by 90 °, the rotary rail 4 also rotates by 90 °. When the rotating rail 4 is in an initial state, the rotating rail 4 corresponds to the two transverse end rails 3, the inclined planes at the two ends of the rotating rail 4 are tightly attached to the inclined planes on the two end rails 3, and the upper end surface and the lower end surface of the rotating rail 4 are flush with the upper end surface and the lower end surface of the end rails 3 at the two sides. The lower end of the rotating rail 4 is also provided with a clamping groove along the extending direction, and the limiting plates 20 on the end rails 3 at two sides are also positioned in the clamping grooves at the lower end of the rotating rail 4, so that the rotating rail 4 can be completely butted with the end rails 3 at two sides.

When the rotating rail 4 rotates by 90 degrees along with the middle main shaft 2, the rotating rail 4 corresponds to the two longitudinal end rails 3 and is completely butted.

The upper end face of the rotating rail 4 is provided with a vertical rotating plate 30, and the sliding sleeve 21 is fixedly arranged in the middle of the rotating plate 30. The two ends of the rotating plate 30 are respectively provided with a slot 31, and the opening of the slot 31 faces to the two sides of the rotating plate 30. When the rotating rail 4 is completely butted with the end rails 3 at two sides, the connecting rods 18 of the lever plates on the end rails 3 at two sides are positioned in the two slots 31 of the rotating plate 30, and the top surfaces of the slots 31 press the connecting rods 18 downwards, at this time, the vehicle blocking plate is in a rotating and lifting state, so that the monorail crane can pass through the end rails 3 at two sides and the rotating rail 4, and the monorail crane cannot be blocked.

The utility model discloses a theory of operation does:

when the rotating rail 4 needs to be switched from the transverse state to the longitudinal state, the first pneumatic push rod 6 stretches and retracts to drive the rail lifting fork rod 25 to rotate, the horizontal section of the rail lifting fork rod 25 rotates upwards, the sliding sleeve 21 is driven to move upwards through the sliding block 24, and therefore the rotating rail 4 rises upwards and is separated from the two transverse end rails 3. The slot 31 on the rotating plate 30 no longer exerts downward pressure on the connecting rods 18 on both sides, so that the car stopping plates on both sides return to the original state due to gravity, and the second stopping plates 16 of the car stopping plates return to be vertical, thereby playing the role of stopping the monorail crane from passing again.

When the rotary rail 4 rises, the second pneumatic push rod 7 acts to drive the middle main shaft 2 to rotate, and due to the action of the sliding rod, the middle main shaft 2 drives the sliding sleeve 21 to synchronously rotate, so that the rotary rail 4 rotates 90 degrees along with the middle main shaft 2, and the rotary rail corresponds to the two longitudinal end rails 3.

And then the first pneumatic push rod 6 is controlled to extend out to drive the rail lifting shifting fork rod 25 to rotate reversely, the horizontal section of the rail lifting shifting fork rod 25 rotates downwards, the sliding sleeve 21 is driven to move downwards through the sliding block 24, and the rotating rail 4 moves downwards until being completely butted with the two end rails 3 of the longitudinal beam.

And the two slots 31 on the rotating plate 30 press down the two longitudinal connecting rods 18, so that the two longitudinal car stopping plates are lifted upwards, and the monorail crane can pass through the two longitudinal end rails 3 and the rotating rail 4.

Thus, the conversion of the states of the cross turnout is completed, and one working cycle is completed.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (10)

1. A monorail crane rotating cross turnout is characterized in that: the lifting rail comprises a top frame (1), wherein a vertical middle main shaft (2) is rotatably connected to the center of the top frame (1), end rails (3) are uniformly and fixedly arranged on four positions of the lower end face of the top frame (1) respectively, the lower end of the middle main shaft (2) is inserted into a sliding sleeve (21), the sliding sleeve (21) is fixedly connected to the center of the upper end face of a rotating rail (4), two vertical sliding grooves (22) are formed in two ends of the outer side face of the sliding sleeve (21), two sliding rods are symmetrically arranged on the outer side face of the middle main shaft (2) and inserted into the sliding grooves (22), an annular groove (23) is formed in the outer side face of the sliding sleeve (21), a lifting rail shifting fork rod (25) is rotatably connected to the top frame (1), two fork parts of the lifting rail shifting fork rod (25) are respectively and rotatably connected with a sliding block (24), two slider (24) joints are inside annular groove (23), the upper end of lifting rail shifting fork rod (25) is connected with the telescopic link of first pneumatic push rod (6) through rope (28), the cylinder bottom of first pneumatic telescopic push rod is articulated mutually with the inboard of top frame (1), the lateral surface of middle main shaft (2) is provided with a catch bar (29), the outer end of catch bar (29) is articulated mutually with the telescopic link of second pneumatic push rod (7), the cylinder bottom of second pneumatic push rod (7) is articulated mutually with top frame (1).

2. A monorail crane rotary cross switch as defined in claim 1, wherein: the top frame (1) is of a horizontally arranged frame structure, the periphery of the top frame is of a regular octagonal structure formed by welding H-shaped steel, the inner side of the top frame is of a cross structure formed by welding four H-shaped steel, a top shaft sleeve (8) which is through up and down is welded at the center of the cross structure, and hoisting points (9) are welded on the upper end faces of the four H-shaped steel of the cross structure respectively.

3. A monorail crane rotary cross switch as defined in claim 2, wherein: the end rail (3) comprises an end rail (10) and a fixing plate (11), the end rail (10) is an I-shaped steel rail, and the extending directions of the four end rails (10) are the same as the extending directions of the four I-shaped steels in the cross structure; fixed plate (11) include a riser (12) and a diaphragm (13), riser (12) vertical weld on the up end of end track (10) and unanimous with the extending direction of end track (10), the upper end of riser (12) and the lower terminal surface middle part of diaphragm (13) weld mutually, be provided with the bolt hole on diaphragm (13), the bolt passes behind the bolt hole on diaphragm (13) and the cross structure looks spiro union of top frame (1).

4. A monorail crane rotary cross switch as defined in claim 3, wherein: the car arrester comprises a vertical plate (12) of a fixing plate (11), wherein the vertical plate (12) is rotatably connected with a car arrester (5), each car arrester (5) comprises two car arresting plates and a lever plate, the two car arresting plates and the lever plate are rotatably connected to the vertical plate (12), each car arresting plate comprises a first stop plate (15) and a second stop plate (16), the two first stop plates (15) are rotatably connected to two sides of the vertical plate (12) through rotating shafts respectively, the second stop plate (16) is fixedly connected to one side end face of each first stop plate (15), the second stop plates (16) are perpendicular to the first stop plates (15), and each first stop plate (15) is further provided with a circular arc-shaped groove.

5. The rotary cross-switch of monorail crane as defined in claim 4, wherein: the lever plate is of a U-shaped structure and comprises two support legs, two starting rods (19) and a connecting rod (18), the two support legs are symmetrically arranged on two sides of a vertical plate (12), one end of each support leg exceeds the inner side end of the vertical plate (12), the connecting rod (18) is located between the two ends, the outer end face, far away from the connecting rod (18), of one end of each support leg is fixedly provided with one starting rod (19) respectively, the two support legs are connected to the vertical plate (12) in a rotating mode through rotating shafts in the middle, and the two starting rods (19) of each support leg are located inside circular arc-shaped grooves in the two first stop plates (15) respectively.

6. A monorail crane rotary cross switch as defined in claim 5, wherein: the upper end face of the rotating rail (4) is provided with a vertical rotating plate (30), the sliding sleeve (21) is fixedly arranged in the middle of the rotating plate (30), two ends of the rotating plate (30) are respectively provided with a slot (31), after the rotating rail (4) is completely butted with the end rails (3) on two sides, the connecting rods (18) of the lever plates on the end rails (3) on the two sides are positioned in the two slots (31) of the rotating plate (30), and the top surfaces of the slots (31) are pressed downwards to move the connecting rods (18).

7. The rotary cross-switch of monorail crane as defined in claim 1, wherein: the rail-lifting shifting fork rod (25) is of an L-shaped structure and comprises a vertical section and a horizontal section, the vertical section penetrates through the top frame (1), and the horizontal section is positioned below the top frame (1); the vertical section is of a rod-shaped structure, the horizontal section is of a herringbone structure, the lower end of the vertical section is fixedly connected with one end of the horizontal section, and one side of the horizontal section, which is far away from the vertical section, is provided with two branch parts; two support lugs are fixedly arranged on a bottom plate of the top frame (1), a rotating shaft is arranged at the joint of the vertical section and the horizontal section, and the rotating shaft is rotatably connected in the two support lugs; the two sliding blocks (24) are respectively connected to the inner sides of the two branch parts of the horizontal section in a rotating way.

8. The rotary cross-switch of monorail crane as defined in claim 7, wherein: the upper end of the vertical section is rotatably connected with a fixed pulley (26), a pin shaft seat is fixedly arranged at the upper end, close to the fixed pulley (26), of the outer side surface of the vertical section, a rope pulley pin shaft (27) is inserted into the pin shaft seat, one end of a telescopic rod of the first pneumatic push rod (6) is fixed with one end of a rope (28), and the other end of the rope (28) is fixedly connected with the rope pulley pin shaft (27) after being turned by the fixed pulley (26).

9. A monorail crane rotary cross switch as defined in claim 3, wherein: the end surface of one end of the inner side of the end rail (10) is of an inclined plane structure, and the lower end of the inclined plane inclines towards the center of the cross turnout; the end surfaces of two sides of the rotating rail (4) are of inclined surface structures, and the lower end of the inclined surface inclines towards the inner side of the rotating rail (4).

10. A monorail crane rotary cross switch as defined in claim 3, wherein: the end rail (3) further comprises a connecting plate (14), the connecting plate (14) is welded at the edge of the outer side of the upper end face of the end rail (10), bolt holes are formed in the connecting plate (14), the connecting plate (14) is perpendicular to the extending direction of the end rail (10), one end of the outer side of the end rail (10) is butted with the monorail hanging rail, the connecting plate (14) on the end rail (10) is connected with the connecting plate (14) on the monorail hanging rail through bolts, and therefore the cross turnout is connected with the existing monorail hanging rail.

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