Ballastless track bed board pouring construction crane

Abstract

The utility model belongs to the technical field of track plate laying and pouring, and discloses a ballastless track plate laying and pouring construction crane which comprises a pouring stock bin, a movable door frame, a traction mechanism and a hoisting and clamping mechanism. The traction mechanism comprises a traction main frame, a traction hydraulic cylinder, a steel cable limiting winding column and a steel cable, one end of the steel cable is wound at the telescopic end of the traction hydraulic cylinder, and the other end of the steel cable bypasses the corresponding steel cable limiting winding column and then is vertically downwards connected with corresponding lifting lugs at four corners of the lifting clamping mechanism; the lifting clamping mechanism comprises a lifting main frame, a clamping hydraulic cylinder located in the middle and extending longitudinally and horizontally, clamping connecting longitudinal rods arranged in a bilateral symmetry mode, and clamping seats which are in bilateral mirror symmetry and connected with the clamping connecting longitudinal rods on the corresponding sides, and the clamping connecting longitudinal rods are hinged to the two ends of the clamping hydraulic cylinder through V-shaped oil cylinder connecting frames; the utility model has the advantages of automatic control clamping and loosening, simple and fast operation, stable clamping, stable hoisting and the like.

Description

TECHNICAL FIELD

[0001] The utility model belongs to track paving slab pouring technical field, concretely relates to a slab track paving slab pouring construction crane. BACKGROUND

[0002] At present, for track paving slab pouring construction, all adopt conventional lifting appliance to grab track slab or the lifting hole in four corners of the stock bin to hoist, need one by one manual hooking lifting hole, operation is complicated, cannot guarantee that hoisting length is consistent to cause to hoist to be easy to sway, and conventional lifting appliance also cannot adapt to track base plate width, therefore also easy to appear left and right position deviation in the process of lifting appliance moving after hoisting, thereby causing the deviation of track slab or stock bin falling position, influence construction progress. CONTENT

[0003] The utility model aims at providing a slab track paving slab pouring construction crane, hoist and mount simple and quick, falling position is accurate, solve the operation of conventional lifting appliance needing one by one manual hooking lifting hole complicated, cannot guarantee that hoisting length is consistent to cause to hoist to be easy to sway, and the problem that also easy to appear left and right position deviation in the process of lifting appliance moving after hoisting.

[0004] Therefore, the utility model adopts the technical scheme, a slab track paving slab pouring construction crane, including pouring stock bin, mobile portal, the pulling mechanism at the upper portion of mobile portal and the hoisting clamping mechanism corresponding with the pulling mechanism up and down connection, the pulling mechanism includes the pulling mainframe installed on the upper portion of corresponding mobile portal, the pulling hydraulic cylinder that installs on the pulling mainframe symmetry and parallel left and right, the steel cable position limiting winding column that sets up symmetry and the four steel cables that pull hoisting clamping mechanism four corners, the steel cable one end is wound in the telescopic end of pulling hydraulic cylinder, the other end passes through corresponding steel cable position limiting winding column and is connected with the lifting lug of hoisting clamping mechanism four corners vertically downward, when the telescopic of pulling hydraulic cylinder, make hoisting clamping mechanism horizontal lifting through four steel cables synchronous pulling, the hoisting clamping mechanism includes the hoisting mainframe, the clamping hydraulic cylinder that is located in the middle portion longitudinal horizontal extension, the clamping connection vertical rod that sets up symmetry and left and right, the clamping seat that is connected with corresponding side clamping connection vertical rod and is with mirror image symmetry, two clamping connection vertical rods are connected with the clamping hydraulic cylinder two ends through " V " type oil cylinder connecting frame and hinged, when the synchronous telescopic of clamping hydraulic cylinder two ends, through " V " type oil cylinder connecting frame angle of opening or narrowing drive two clamping connection vertical rods to approach or far away, thereby make the synchronous opening or clamping of clamping seat to the outside.

[0005] As the preferred solution of the above scheme, the mobile portal frame comprises telescopic columns at four corners, a pulling support frame lapped on the upper part of the telescopic columns, and a roller assembly installed at the bottom of the telescopic columns, the roller assembly comprises a roller box, rollers in the roller box, a driving motor providing driving force for the rollers, and guide limit wheels on the outer side of the roller box and sliding along the side wall of the track base plate, the automatic movement of the rollers is driven by the driving motor, the operation is simple, and the transverse limiting of the whole crane is realized through the guide limit wheels, effectively avoiding the deviation of the crane during moving.

[0006] Further preferably, the telescopic column adopts a two-section inner-outer sleeved square column, and the upper section of the square column is provided with a telescopic hydraulic cylinder, so as to realize the overall lifting of the pulling support frame and the obstacle avoidance, the two telescopic columns on the same side of the left or right are provided with a sliding groove support, the lifting main frame is provided with a telescopic offset adjusting piece corresponding to the sliding groove support, and the outer end of the telescopic offset adjusting piece is provided with a limit roller capable of sliding along the inner sliding groove of the sliding groove support, so as to increase the stability during lifting, guide and offset compensation through the telescopic offset adjusting piece, improve the initial paving precision of the paving plate, and effectively avoid the situation that the lifting of the steel cable causes the lifting object to shake, and the structure design is ingenious.

[0007] Further preferably, the telescopic offset adjusting piece comprises a connecting piece, a anti-shaking hydraulic cylinder, and a foldable protective cover, the connecting piece is installed on the lifting main frame and extends outward horizontally, the piston end of the anti-shaking hydraulic cylinder is installed on one end of the foldable protective cover through a pin shaft, and the oil cylinder end is installed on the other end of the foldable protective cover through a pin shaft, and the inner end of the foldable protective cover is fixed on the connecting piece, so that the lifting of the lifting clamping mechanism will not deviate, and the structure design is reasonable.

[0008] Further preferably, the clamping seat comprises a horizontal connecting rod connected between front and rear spaced clamping connecting vertical rods and a lifting frame connected with the outer end of the horizontal connecting rod, the lifting main frame is provided with a through hole and a sleeve pipe through which the horizontal connecting rod passes, and the lifting frame has a whole "L" type structure, which is used for lifting the left and right sides of the pouring bin or the left and right sides of the track plate, the structure design is reasonable, and the horizontal lifting of the lifting object is effectively ensured.

[0009] Further preferably, the steel cable limiting winding column comprises a steel cable vertical adjusting disc at the corner, a steel cable longitudinal adjusting disc corresponding to the telescopic end of the pulling hydraulic cylinder at the rear side, and a steel cable branch disc at the middle part, one end of the two steel cables is fixed on the telescopic end of the pulling hydraulic cylinder, and the other end is introduced into the steel cable vertical adjusting disc corresponding to the corner after passing through the steel cable longitudinal adjusting disc and the steel cable branch disc in sequence, the steel cable longitudinal adjusting disc and the steel cable branch disc both adopt two layers of wire discs, so as to respectively accommodate two steel cables, the structure design is reasonable, the synchronous pulling of the four steel cables is ensured, and the horizontal lifting and lowering of the lifting clamping mechanism is ensured.

[0010] Further preferably, the cable storage coil is mounted on the front side of the pulling main frame, and the hydraulic station is mounted on the rear side.

[0011] The utility model discloses the beneficial effects of:

[0012] (1) compared with the current conventional lifting appliance needs one by one artificial hooking lifting hole, the scheme adopts the crane specially used for ballastless track slab pouring construction, and the movable portal can move along the track base plate, so that the deviation of the lifting appliance can be avoided, when the clamping hydraulic cylinder of the lifting and clamping mechanism is synchronously extended and contracted, the clamping seat is synchronously loosened or clamped inwards through the " V " type oil cylinder connecting frame angle increasing or reducing to drive two clamping connection vertical rods to approach or move away, so that the lifting and clamping mechanism is automatically controlled to clamp and loosen, and the operation is simple and fast.

[0013] (2) compared with the current lifting appliance lifting length, the pulling hydraulic cylinder of the pulling mechanism is synchronously pulled through four steel wires to make the lifting and clamping mechanism horizontally lift, so that the lifting is not easily shaken horizontally, and the structure is connected.

[0014] In conclusion, the utility model has the advantages of automatic control clamping and loosening, simple and fast operation, stable clamping, stable lifting and the like. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the structural schematic diagram of the utility model.

[0016] Figure 2 It is the structural schematic diagram of the movable portal.

[0017] Figure 3 It is the structural schematic diagram of the pulling mechanism.

[0018] Figure 4 It is the structural schematic diagram of the lifting and clamping mechanism.

[0019] Figure 5 It is the cross section schematic diagram of the lifting and clamping mechanism.

[0020] Figure 6 It is the sectional view of the telescopic offset adjusting part. DETAILED DESCRIPTION

[0021] The utility model is further described below through examples and in conjunction with the drawings:

[0022] In conjunction with Figure 1 — Figure 6 As shown in the figure, a ballastless track slab pouring construction crane is composed of a pouring bin 4, a movable portal 1, a pulling mechanism 2 located on the upper part of the movable portal 1 and a lifting and clamping mechanism 3 connected with the pulling mechanism 2 upwards and downwards.

[0023] The mobile gantry 1 consists of telescopic columns 11 located at the four corners, traction support frames 12 that overlap the upper part of the telescopic columns 11 at the four corners, and roller assemblies 13 installed at the bottom of the telescopic columns 11.

[0024] The roller assembly 13 consists of a roller box 131, rollers 132 located inside the roller box 131, a drive motor 133 that provides the driving force for the movement of the rollers 132, and a guide and limiting wheel 134 located outside the roller box 131 and sliding along the side wall of the track base plate 5.

[0025] The telescopic column 11 is made of two sections of square column with inner and outer fittings, and the upper section of the square column is equipped with a telescopic hydraulic cylinder 14, thereby realizing the overall lifting and lowering of the support frame 12.

[0026] Two telescopic columns 11 located on the same left or right side are equipped with sliding brackets 15.

[0027] The main lifting frame 31 is equipped with a telescopic offset adjustment component 311 on the corresponding slide rail bracket 15.

[0028] The traction mechanism 2 consists of a traction main frame 21 installed on the upper part of the corresponding movable gantry 1, traction hydraulic cylinders 22 symmetrically installed on the traction main frame 21, steel cable limiting winding columns 23 symmetrically arranged on the left and right, and steel cables 24 at the four corners of the traction lifting clamping mechanism 3.

[0029] The cable limiting winding column 23 consists of a vertical cable adjusting disc 231 located at the corner, a longitudinal cable adjusting disc 232 located at the telescopic end of the corresponding traction hydraulic cylinder 22 on the rear side, and a cable guiding disc 233 located in the middle.

[0030] Both the longitudinal adjustment disc 232 and the cable distribution disc 233 adopt two layers of discs, so that two cables 24 can be installed respectively.

[0031] One end of the steel cable 24 is wrapped around the telescopic end of the traction hydraulic cylinder 22, and the other end passes over the corresponding steel cable limiting column 23 and is vertically downward connected to the corresponding lifting lugs at the four corners of the lifting clamping mechanism 3.

[0032] Two steel cables 24 are fixed at one end to the telescopic end of the traction hydraulic cylinder 22, and the other end passes through the longitudinal adjustment disc 232 and the cable guide disc 233 in sequence before being introduced into the vertical adjustment disc 231 of the corresponding corner.

[0033] The main traction frame 21 is equipped with a cable storage coil 211 on the front and a hydraulic station 212 on the rear.

[0034] When the hydraulic cylinder 22 extends or retracts, the lifting clamping mechanism 3 is raised or lowered horizontally by the synchronous pulling of the four steel cables 24.

[0035] The lifting and clamping mechanism 3 consists of a lifting main frame 31, a clamping hydraulic cylinder 32 extending horizontally in the middle, clamping connecting rods 33 arranged symmetrically on the left and right, and clamping seats 34 that are mirror-symmetrical on the left and right and connected to the corresponding clamping connecting rods 33.

[0036] The clamping connecting rods 33 are hinged to both ends of the clamping hydraulic cylinder 32 via a "V"-shaped hydraulic cylinder connecting bracket 35.

[0037] When the two ends of the clamping hydraulic cylinder 32 extend and retract outward synchronously, the angle of the "V"-shaped cylinder connecting frame 35 increases or decreases, causing the two clamping connecting rods 33 to move closer or further away, thereby causing the clamping seat 34 to simultaneously loosen outward or clamp inward.

[0038] The main lifting frame 31 is equipped with a telescopic offset adjustment component 311 on the corresponding slide rail bracket 15.

[0039] The retractable offset adjustment member 311 has a limiting roller 312 installed at its outer end, which can slide along the inner groove of the slide bracket 15.

[0040] The retractable offset adjustment component 311 consists of a connector 311a, an anti-sway hydraulic cylinder 311b, and a foldable protective cover 311c.

[0041] The connector 311a is installed on the main lifting frame 31 and extends horizontally outward.

[0042] The piston end of the anti-sway hydraulic cylinder 311b is mounted on one end of the foldable protective cover 311c via a pin, and the cylinder end is mounted on the other end of the foldable protective cover 311c via a pin.

[0043] The inner end of the foldable protective cover 311c is fixed to the connector 311a.

[0044] The clamping seat 34 consists of a horizontal connecting rod 341 that is spaced apart from the front and rear and connected to the clamping connecting rod 33, and a lifting frame 342 that is connected to the outer end of the horizontal connecting rod 341.

[0045] The main lifting frame 31 is provided with through holes and sleeves for the horizontal connecting rods 341 to pass through.

[0046] The lifting frame 342 has an overall "L" shape and is used to lift the left and right sides of the pouring silo 4 or the left and right sides of the track plate.

Claims

1. A crane for ballastless track slab pouring construction, characterized in that: The system includes a movable gantry (1), a traction mechanism (2) located on the upper part of the movable gantry (1), and a lifting and clamping mechanism (3) connected vertically to the traction mechanism (2). The traction mechanism (2) includes a traction main frame (21) installed on the upper part of the corresponding movable gantry (1), traction hydraulic cylinders (22) symmetrically arranged on the traction main frame (21), steel cable limiting winding columns (23) symmetrically arranged on the left and right, and four steel cables (24) at the four corners of the traction lifting and clamping mechanism (3). One end of the steel cable (24) is wrapped around the telescopic end of the traction hydraulic cylinder (22), and the other end passes around the corresponding steel cable limiting winding column (23) and is vertically connected to the corresponding lifting lugs at the four corners of the lifting and clamping mechanism (3). When the traction hydraulic cylinder (22) telescopically extends or retracts, the steel cables (24) are connected to the lifting and clamping mechanism (3) at the four corners of the lifting and clamping mechanism (3). The cable (24) pulls synchronously to make the lifting clamping mechanism (3) rise and fall horizontally; the lifting clamping mechanism (3) includes a lifting main frame (31), a clamping hydraulic cylinder (32) extending horizontally in the middle, clamping connecting rods (33) arranged symmetrically on the left and right, and clamping seats (34) that are mirror-symmetrical on the left and right and connected to the corresponding clamping connecting rods (33). The two clamping connecting rods (33) are hinged to the two ends of the clamping hydraulic cylinder (32) through a "V"-shaped oil cylinder connecting frame (35). When the two ends of the clamping hydraulic cylinder (32) extend and retract outward synchronously, the angle of the "V"-shaped oil cylinder connecting frame (35) increases or decreases, causing the two clamping connecting rods (33) to move closer or further away, thereby causing the clamping seat (34) to open outward or clamp inward synchronously.

2. The ballastless track slab pouring construction crane according to claim 1, characterized in that: The movable gantry (1) includes telescopic columns (11) located at the four corners, traction support frames (12) that overlap the upper part of the telescopic columns (11) at the four corners, and roller assembly (13) installed at the bottom of the telescopic columns (11). The roller assembly (13) includes a roller box (131), rollers (132) located in the roller box (131), a drive motor (133) that provides the driving force for the rollers (132), and guide limit wheels (134) located outside the roller box (131) and sliding along the side wall of the track base plate (5).

3. The ballastless track slab pouring construction crane according to claim 2, characterized in that: The telescopic column (11) is a two-section inner and outer square column, and the upper section of the square column is equipped with a telescopic hydraulic cylinder (14) to realize the overall lifting and lowering of the traction support frame (12). The two telescopic columns (11) located on the left or right side are provided with a sliding groove bracket (15). The lifting main frame (31) is equipped with a telescopic offset adjustment component (311) corresponding to the sliding groove bracket (15). The outer end of the telescopic offset adjustment component (311) is equipped with a limiting roller (312) that can slide along the inner groove of the sliding groove bracket (15).

4. The ballastless track slab pouring construction crane according to claim 3, characterized in that: The retractable offset adjustment component (311) includes a connector (311a), an anti-sway hydraulic cylinder (311b), and a foldable protective cover (311c). The connector (311a) is mounted on the main lifting frame (31) and extends horizontally outward. The piston end of the anti-sway hydraulic cylinder (311b) is mounted on one end of the foldable protective cover (311c) via a pin, and the cylinder end is mounted on the other end of the foldable protective cover (311c) via a pin. The inner end of the foldable protective cover (311c) is fixed on the connector (311a).

5. The ballastless track slab pouring construction crane according to claim 1, characterized in that: The clamping seat (34) includes a horizontal connecting rod (341) that is connected to the clamping connecting rod (33) at intervals in front and behind, and a lifting frame (342) that is connected to the outer end of the horizontal connecting rod (341). The lifting main frame (31) is provided with a through hole and a sleeve for the horizontal connecting rod (341) to pass through. The lifting frame (342) is in an "L" shape and is used to lift the left and right sides of the casting silo or the left and right sides of the track plate.

6. The ballastless track slab pouring construction crane according to claim 1, characterized in that: The cable limiting winding column (23) includes a cable vertical adjustment disc (231) located at the corner, a cable longitudinal adjustment disc (232) located at the rear corresponding to the telescopic end of the traction hydraulic cylinder (22), and a cable directional disc (233) located in the middle. One end of the two cables (24) is fixed to the telescopic end of the traction hydraulic cylinder (22), and the other end passes through the cable longitudinal adjustment disc (232) and the cable directional disc (233) in sequence before being introduced into the cable vertical adjustment disc (231) at the corresponding corner. The cable longitudinal adjustment disc (232) and the cable directional disc (233) both adopt two layers of coils, so as to respectively place the two cables (24).

7. The ballastless track slab pouring construction crane according to claim 2, characterized in that: The cable storage coil (121) is installed on the front side of the traction support frame (12), and the hydraulic station (122) is installed on the rear side.

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