WO2019104742A1

WO2019104742A1 - Rotary frog lifting tool with folding boom

Info

Publication number: WO2019104742A1
Application number: PCT/CN2017/114355
Authority: WO
Inventors: 宰秀凤
Original assignee: 宰秀凤
Priority date: 2017-12-03
Filing date: 2017-12-03
Publication date: 2019-06-06

Abstract

A rotary frog lifting tool with a folding boom. Two groups of cantilevers provided in parallel are connected to a turret (3); the cantilevers comprise a first cantilever (16), a second cantilever (13), and a third cantilever (11), which are foldably connected to each other. In work, the first cantilever (16) is driven by a main cylinder (4) to ascend or descend by rotation, thereby facilitating adjustment on the length and stretching position of the first cantilever (16); in lifting operation, the second cantilever (13) and the third cantilever (11) can be unfolded; after the operation, the second cantilever (13) and the third cantilever (11) are folded, so that the overall length of the cantilevers is reduced, the mobility of the apparatus is enhanced, and mobile installation and field operations are facilitated. The apparatus can be used for lifting frogs during railway construction, so that field deployment can easily be carried out, and the position can easily be changed.

Description

Rotary folding arm frog spreader

Technical field

The invention relates to a spreader, in particular to a fork spreader for railway construction.

Background technique

A frog is a device that causes a train wheel to pass over a rail from another rail, consisting of a fork, a wing rail, and a coupling part. Divided into flat forms, there are two types of linear frogs and curved frogs; according to the type of construction, there are two types of fixed frogs and movable frogs. There are two types of linear fixed frogs, namely, a full-cast frog and a rail-mounted frog. The frog generally includes an upper rail portion and a pedestal portion connected to the lower portion, and the side portion of the rail portion has a partial recess, and the one-side cross section is substantially in the shape of an I-shape. The construction and hoisting of the field is difficult. The main reason is that the sling for lifting the frog is large in the field, which is not conducive to the maneuvering of the transition. Second, the existing slings are inconvenient to operate and the hoisting speed is low. slow.

In the Chinese patent database, a hydraulic slewing crane is disclosed, the application number is: CN201620994590.9; application date: 20160831; public (announcement) number: CN206051370U; public (announcement) day: 20170329; the device includes a base, a slewing tower, a boom, a luffing cylinder, a wire rope and a hook, the slewing tower is arranged on the base, the tail end of the boom is hinged at the top of the slewing tower, the first guiding pulley is arranged at the top end, and the movable guiding wheel is installed at the bottom a second guiding pulley is disposed on the guiding wheel mounting seat, and one end of the wire rope is connected with a winch disposed on the lifting arm, and the other end is sequentially connected to the hook after passing through the first guiding pulley and the second guiding pulley. a first fixing member is disposed on a lower side of the rotating tower, a second fixing member is disposed at a bottom of the lifting arm, and a variable amplitude cylinder is installed between the first fixing member and the second fixing member, and the hanging The hook is provided with a vertical downlight, and a side of the slewing tower is provided with a support rod, and the support rod is inclined toward the boom. When the boom is horizontal, the end of the support rod is in contact with the bottom of the boom. The disadvantage is that the device also has the problem of poor maneuverability and inconvenient lifting.

Summary of the invention

It is an object of the present invention to provide a swivel knuckle frog spreader that facilitates maneuver deployment.

The object of the present invention is achieved by a rotary jib bifurcation spreader comprising a base on which a turret is rotatably disposed, and two turrets arranged in parallel are connected to the turret, the cantilever The first cantilever, the second cantilever and the third cantilever are respectively fixed on one end of the first cantilever, the other end of the first cantilever is hinged to one end of the second cantilever, and the other end of the second cantilever is opposite to one end of the third cantilever Hinged, the other end of the third cantilever is provided with a fixed pulley, and a rotary driving mechanism is respectively disposed between the first cantilever and the second cantilever, and between the second cantilever and the third cantilever, and the lower side of the first cantilever is disposed between the lower tower and the turret There is a main oil cylinder, a hoist is arranged on the upper side of the first cantilever, a lifting component is arranged on the lower side of the first cantilever, a movable pulley is mounted on the lifting component, and an anchor, a first cantilever and a second The upper side between the cantilevers is provided with a first guide wheel, a second cantilever and a The upper side between the three cantilevers is provided with a second guiding wheel and a third guiding wheel. The second guiding wheel and the third guiding wheel are arranged in pairs, one end of the wire rope is fixed with the anchor, and the other end is wound around the moving pulley and the fixed pulley. Then, it passes through the gap between the second guide wheel and the third guide wheel, and then passes through the wheel groove of the first guide wheel, and is wound around the hoist.

When the invention works, the first cantilever can be driven to rise or fall by the main cylinder, so that the length and the extended position can be conveniently adjusted. When the lifting operation is performed, the second cantilever and the third cantilever can be deployed, and after the work is completed, The second cantilever and the third cantilever are folded, so that the overall length of the cantilever is reduced, and the mobility of the device is increased, which is convenient for mobile installation and field work. The design of the first guide wheel, the second guide wheel and the third guide wheel enables the wire rope to maintain the tension state when the second cantilever and the third cantilever are folded, so that the wire can be quickly retracted. The turret is designed to rotate in a plane. The hoisting devices corresponding to the two sets of cantilever can respectively hoist the two positions of the frog, so that it can be hoisted smoothly. The device can be used for hoisting the frog in railway construction. It can be easily deployed in the field or moved to a convenient location.

A further improvement is that the rotary drive mechanism is a gear transmission. The rotary drive mechanism is a multi-link drive mechanism. The second cantilever and the third cantilever can be driven to rotate by the motor, the oil motor, the oil cylinder, etc., so that the second cantilever and the third cantilever are folded, the overall size is reduced, and the center of gravity is transferred to the base for convenient movement.

According to a further improvement of the present invention, an end of the second cantilever that is connected to the first cantilever is provided with a curved guide groove. When the second cantilever is folded around the first cantilever, the wire rope is just caught on the guide rope. In the slot.

As a further improvement of the present invention, the first guide wheel disposed on the upper side between the first cantilever and the second cantilever is mounted on the first cantilever.

As a further improvement of the present invention, the second guide wheel and the third guide wheel may be mounted on the second cantilever or may be mounted on the third cantilever. When the third cantilever is folded, the wire rope accordingly bypasses the third guide wheel.

In order to facilitate the lifting of the frog, the lifting assembly comprises a supporting frame, the movable pulley is rotatably mounted on the supporting frame, and two supporting plates are symmetrically arranged on the supporting frame, and the linked upper end is hinged on the supporting frame, and the upper end is linked The opposite side of the linkage plate is provided with intermeshing teeth; the lower end of the linkage plate is respectively hinged with a hook plate for clamping the frog, and the middle portions of the two hook plates are respectively hinged with the end of the connecting rod, the connecting rod and the support There is a locking cylinder between the frames.

As a modification of the present invention, the first cantilever, the second cantilever, and the third cantilever are stretched in a straight line; when contracted, the second cantilever is folded downward, and the third cantilever is folded upward.

Further, the base can be disposed on a motor vehicle. It is easy to transfer work. Of course, it can also be placed on the rails, which is more convenient along the railway construction.

DRAWINGS

Figure 1 is a schematic view showing the extended state of the present invention.

Figure 2 is a schematic view showing the folded state of a structure of the present invention.

Fig. 3 is a schematic view showing the folded state of still another structure of the present invention.

Figure 4 is a schematic view of the structure of the lifting assembly.

Among them, 1 controller, 2 base, 3 turret, 4 main cylinder, 5 guide rope groove, 6 drive gear, 7 driven gear, 8 lifting components, 801 support frame, 802 linkage, 803 lock cylinder, 804 Linkage plate, 805 link, 806 hook plate, 807 clamping part, 808 intermeshing tooth, 9 moving pulley, 10 fixed pulley, 11 third cantilever, 12 second guide wheel and third guide wheel, 13 second cantilever, 14 first guide wheel, 15 wire rope, 16 first cantilever, 17 hoist, 18 anchor, 19 rotary sprocket.

Detailed ways

Example 1

As shown in Figures 1, 2 and 4, it is a rotary folding arm sling spreader, comprising a base 2, the turret 3 is rotatably arranged on the base 2, and the turret 3 and the base 2 are arranged There are bearings, a rotating toothed disc 19 and a swinging motor, so that the turret 3 can be rotated in a plane, and the turret 3 is connected with two sets of cantilevers arranged in parallel, and the cantilever includes a first cantilever 16, a second cantilever 13, and a third cantilever 11 One end of the first cantilever 16 is hinged on the turret 3, the other end of the first cantilever 16 is hinged with one end of the second cantilever 13, and the other end of the second cantilever 13 is hinged with one end of the third cantilever 11 and the third cantilever 11 The other end is provided with a fixed pulley 10, between the first cantilever 16 and the second cantilever 13, and between the second cantilever 13 and the third cantilever 11 respectively, a rotary drive mechanism is provided, and the rotary drive mechanism is a gear transmission mechanism including a drive gear 6 and the driven gear 7, the driven gear 7 is driven to rotate by the driving gear 6, and the driven gear 7 is mounted on the corresponding hinge shaft to drive the second cantilever 13 and the third cantilever 11 to rotate; the lower side of the first cantilever 16 is A main oil cylinder 4 is disposed between the turrets 3, and a hoisting machine 17 is disposed on the upper side of the first suspension arm 16, and the first cantilever 16 The lower side is provided with a lifting assembly 8, and the lifting assembly 8 is provided with a movable pulley 9. The lower side of the third cantilever 11 is further provided with an anchor 18, and the upper side between the first cantilever 16 and the second cantilever 13 is provided with a first guiding wheel. 14. The upper side between the second cantilever 13 and the third cantilever 11 is provided with a second guide wheel and a third guide wheel. The second guide wheel and the third guide wheel are disposed in pairs, and one end of the wire rope 15 is connected with the anchor 18 The other end is wound around the movable pulley 9, the fixed pulley 10, and then passes through the gap between the second guide wheel and the third guide wheel, and then passes through the wheel groove of the first guide wheel 14, and is wound around the hoisting machine 17.

An end of the second cantilever 13 connected to the first cantilever 16 is provided with an arcuate guide groove 5, and when the second cantilever 13 is rotated and folded around the first cantilever 16, the wire rope 15 is just caught in the guide groove 5. A first guide wheel 14 disposed on the upper side between the first cantilever 16 and the second cantilever 13 is mounted on the first cantilever 16. The second guide wheel and the third guide wheel 12 are mounted on the third cantilever 11.

The hoisting assembly 8 includes a support frame 801. The movable pulley 9 is rotatably mounted on the support frame 801. The support frame 801 is also symmetrically provided with two linkage plates 804. The upper end of the linkage plate 804 is hinged on the support frame 801, and the upper end of the linkage plate 804 is Each of the opposite sides has a linkage portion 802, and the linkage portion 802 is provided with intermeshing teeth 808; the lower ends of the linkage plates 804 are respectively hinged There is a hook plate 806 for holding the frog, and the lower end of the hook plate 806 is provided with a clamping portion 807 for holding the frog, and the middle portions of the two hook plates 806 are respectively hinged with the end of the connecting rod 805, and A lock cylinder 803 is disposed between the rod 805 and the support frame 801. The base 2 can be placed on a motor vehicle.

In the device, the first cantilever 16, the second cantilever 13 and the third cantilever 11 are stretched in a straight line; when contracted, the second cantilever 13 is folded downward, and the third cantilever 11 is folded upward.

The device further includes a controller 1 which is controlled by the control line to help the field operator stand in the lifting position for operation, which facilitates the operator to observe the scene.

When lifting the frog, the first cantilever 16, the second cantilever 13 and the third cantilever 11 are stretched in a straight line; by the action of the master cylinder 4, the first cantilever 16 is driven to rotate up or down to realize the lifting assembly 8 and the turret 3 Center distance adjustment, the lifting assembly 8 can be placed by the winch 17 to the position of the fork that needs to be hoisted, and the locking plate 806 can be opened or tightened by the locking cylinder 803 to be clamped in the grooves on both sides of the fork The hook plates 806 corresponding to the two groups of cantilevers can have different openings to adapt to the irregular shape of the frog, and the hooks can be reliably locked in two positions regardless of the width and width thereof, so that the hoisting operation can be smoothly performed. After the operation is completed, the second cantilever 13 can be folded downward, the third cantilever 11 is folded upward, and the corresponding wire rope 15 bypasses the corresponding guide wheel, and the hoisting machine 17 can tighten the wire rope 15 to fix it.

Example 2

As shown in FIG. 3, the difference from Embodiment 1 is that the second guide wheel and the third guide wheel 12 are mounted on the second cantilever 13.

The present invention is not limited to the above embodiments, and based on the technical solutions disclosed by the present invention, those skilled in the art can make some substitutions for some of the technical features without any creative labor according to the disclosed technical content. Modifications, such substitutions and modifications are within the scope of the invention. For example, the rotary drive mechanism can also be a multi-link drive mechanism.

Claims

The utility model relates to a rotary folding arm sling spreader, which comprises a machine base. The turret is rotatably arranged on the machine base, and the turret is connected with two sets of cantilever arms arranged in parallel, wherein the cantilever comprises a first cantilever, a second cantilever and a third cantilever, one end of the first cantilever is hinged on the turret, the other end of the first cantilever is hinged to one end of the second cantilever, and the other end of the second cantilever is hinged to one end of the third cantilever, the third cantilever The other end is provided with a fixed pulley, a rotation driving mechanism is arranged between the first cantilever and the second cantilever, and between the second cantilever and the third cantilever, and a main cylinder is arranged between the lower side of the first cantilever and the turret, A hoist is arranged on the upper side of the cantilever, a lifting component is arranged on the lower side of the first cantilever, a movable pulley is mounted on the lifting component, and an anchor is arranged on the lower side of the third cantilever, and the upper side of the first cantilever and the second cantilever The first guide wheel is disposed on the side, the second guide wheel and the third guide wheel are disposed on the upper side between the second cantilever and the third cantilever, and the second guide wheel and the third guide wheel are disposed in pairs, one end of the wire rope and the anchor The parts are fixed, the other end is around the moving pulley, and the sliding Then through the gap between the second guide wheel and third guide wheel, rear wheel and then through the first guide groove wheel, the hoisting machine mounted on said wound.
The rotary frog boom sling according to claim 1, wherein said rotary drive mechanism is a gear transmission mechanism.
The swing type folding arm sling spreader according to claim 2, wherein one end of the second cantilever connected to the first cantilever is provided with an arc-shaped guide rope groove, and when the second cantilever is wound around the first cantilever When rotating and folding, the wire rope is just caught in the guide rope groove.
A rotary frog boom sling according to claim 2 or 3, wherein the first guide wheel disposed on the upper side between the first cantilever and the second cantilever is mounted on the first cantilever.
A swing type frog boom sling according to any one of claims 1 to 3, wherein the second guide wheel and the third guide wheel are mounted on the second cantilever.
A swing type frog boom sling according to any one of claims 1 to 3, wherein the second guide wheel and the third guide wheel are mounted on the third cantilever.
The swing type folding arm sling spreader according to any one of claims 1 to 3, wherein the hoisting assembly comprises a support frame, and the movable pulley is rotatably mounted on the support frame, and the support frame is also symmetrical. There are two linkage plates, and the upper end of the linkage plate is hinged on the support frame, and the opposite sides of the linkage plate end are provided with mutually engaging teeth; the lower end of the linkage plate is respectively hinged with a hook plate for holding the fork, and two hook plates are respectively The middle portions are respectively hinged with the ends of the connecting rods, and a locking cylinder is arranged between the connecting rod and the supporting frame.
The swing type folding arm sling spreader according to any one of claims 1 to 3, wherein the first cantilever, the second cantilever and the third cantilever are stretched in a straight line; when contracted, the second cantilever Fold down and the third cantilever folds up.
A swing type frog boom sling according to any one of claims 1 to 3, wherein the base is provided on a motor vehicle.
The rotary frog boom sling according to claim 1, wherein said rotary drive mechanism is a multi-link drive mechanism.