Riding cable type crawling crane

Abstract

The utility model discloses a cable-straddling type crawling crane which comprises a motor set and a machine frame, a horizontal telescopic oil cylinder is arranged at the front end of the machine frame, the front end of a telescopic rod of the horizontal telescopic oil cylinder is connected with a front clamping mechanism, the front end of the front clamping mechanism is connected with a front walking mechanism, a clamping positioning mechanism is arranged at the rear end of the machine frame, and the rear end of the clamping positioning mechanism is connected with a rear clamping mechanism. The front end of the rear clamping mechanism is connected with a rear walking mechanism, and the bottom of the rack is connected with a winch lifting mechanism. According to the crawling crane, the front clamping mechanism and the rear clamping mechanism alternately clamp the main cable by means of the telescopic motion of the horizontal telescopic oil cylinder, and drive the front walking mechanism and the rear walking mechanism to slide on the main cable, so that the crane can be independently suspended on the single main cable to crawl; the technical problem that cranes need to be connected through rigid cross beams is solved, the suspension bridge steel beam installation device can adapt to main cables in various space forms and can be used in a split mode or in an integrated mode, the suspension bridge steel beam installation technology is simplified, and operation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, in particular to a straddling cable type crawling crane. Background Art

[0002] Cable-mounted cranes are a type of crane commonly used for steel beam installation in suspension bridge construction. Figure 1 As shown, the traditional cable-mounted crane is suitable for parallel cables, that is, the cranes on the parallel main cables are connected by rigid beams, and a winch is connected to the bottom of the rigid beam for hoisting to ensure the stability of the crane. However, if the main cables are non-parallel spatial lines, the use of this type of cable-mounted crane is limited and the balance of the crane cannot be guaranteed. Therefore, it is urgent to design a crane structure that can be suitable for running and hoisting on a single cable to solve the above technical problems. Utility Model Content

[0003] In order to solve the technical problems mentioned in the background technology, the utility model provides a straddling cable type crawling crane.

[0004] The utility model adopts the following technical scheme: a straddling cable type crawling crane, comprising a motor group and a frame; the frame is saddle-shaped as a whole and can straddle the main cable; a horizontal telescopic cylinder is arranged at the front end of the frame; the front end of the telescopic rod of the horizontal telescopic cylinder is connected to a front clamping mechanism that can be clamped on the outer periphery of the main cable; the front end of the front clamping mechanism is connected to a front traveling mechanism; a clamping and positioning mechanism for clamping on both sides of a cable clamp on the main cable is arranged at the rear end of the frame; the rear end of the clamping and positioning mechanism is connected to a rear clamping mechanism that can be clamped on the outer periphery of the main cable; the front end of the rear clamping mechanism is connected to the rear traveling mechanism; and the bottom of the frame is connected to a winch lifting mechanism for hoisting.

[0005] Furthermore, the front walking mechanism includes a first fixed frame; a front lifting cylinder is arranged at the bottom of the first fixed frame; the bottom of the telescopic rod of the front lifting cylinder is connected to the front walking wheel; the front walking wheel can slide on the main cable; the rear walking mechanism includes a second fixed frame; a rear lifting cylinder is arranged at the bottom of the second fixed frame; the bottom of the telescopic rod of the rear lifting cylinder is connected to the rear walking wheel; the rear walking wheel can slide on the main cable.

[0006] Furthermore, the front clamping mechanism includes a third fixed frame connected to the frame; the first telescopic oil cylinder is symmetrically connected to the third fixed frame on both sides; the telescopic rod ends of a pair of first telescopic oil cylinders are connected to the first clamping arm; an arc-shaped clamping groove is provided at the front end of the first clamping arm; the arc surface of the arc-shaped clamping groove is adapted to the outer arc surface of the main cable; the upper end of the notch of the arc-shaped clamping groove is connected to a rotating shaft fixed on the third fixed frame, so that when the telescopic rods of the pair of first telescopic oil cylinders are extended, the pair of first clamping arms rotate with the rotating shaft as the center toward the side close to the main cable; The clamping mechanism includes a fifth fixed frame connected to the frame; the third telescopic cylinder is symmetrically connected to both sides of the fifth fixed frame; the ends of the telescopic rods of a pair of third telescopic cylinders are connected to the second clamping arm; a second arc-shaped clamping groove is provided at the front end of the second clamping arm; the arc surface of the second arc-shaped clamping groove is adapted to the outer arc surface of the main cable; the upper end of the notch of the second arc-shaped clamping groove is connected to the second rotating shaft fixed on the fifth fixed frame, so that when the telescopic rods of a pair of third telescopic cylinders are extended, the pair of second clamping arms rotate toward the side close to the main cable with the second rotating shaft as the center.

[0007] Furthermore, the clamping and positioning mechanism includes a fourth fixed frame connected to the frame; the fourth fixed frame is in an inverted U shape as a whole; a pair of second telescopic cylinders are symmetrically arranged on the inner walls on both sides of the fourth fixed frame; a pair of second telescopic cylinders are respectively provided with special-shaped clamping plates at the front ends; the plate shape of the special-shaped clamping plate is adapted to the surface of the cable clamp.

[0008] Furthermore, the winch lifting mechanism includes a winding drum motor, a guide wheel group, a friction wheel group and a fixed pulley group fixed on the inner side of the bottom of the frame; the wire rope extended from the winding drum motor passes around the guide wheel group, the friction wheel group, the fixed pulley group in sequence and is connected to the movable pulley group; the friction wheel group is driven by a hydraulic motor; and the bottom end of the movable pulley group is connected to a hook.

[0009] Furthermore, the fixed pulley block is connected to a fixing rod; and the end of the fixing rod is connected to the frame.

[0010] Compared with the prior art, the advantages of the utility model are:

[0011] The cable-riding crawling crane designed by the utility model relies on the telescopic movement of the horizontal telescopic cylinder. The front clamping mechanism and the rear clamping mechanism alternately clamp the main cable, driving the front traveling mechanism and the rear traveling mechanism to slide on the main cable, so that the crane can crawl independently suspended on a single main cable. The crawling crane overcomes the technical problems that traditional cable-mounted cranes can only be applied to parallel main cables and that rigid crossbeams are required to connect cranes. It can adapt to main cables in various spatial forms and can be used in a split or integrated manner, thereby simplifying the installation process of steel beams of suspension bridges and improving working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the working state of a traditional cable-mounted crane;

[0013] Figure 2 Schematic diagram of the connection between the main cable and the cable clamp;

[0014] Figure 3 It is a schematic diagram of the overall structure of the utility model straddling cable type crawling crane;

[0015] Figure 4 for Figure 3 Sectional view of the front clamping mechanism and the rear clamping mechanism along the AA plane, wherein (4.a) is the clamping state and (4.b) is the releasing state;

[0016] Figure 5 for Figure 3 BB section view of the middle clamping and positioning mechanism, wherein (5.a) is a released state and (5.b) is a clamped state;

[0017] Figure 6 This is a schematic diagram of the internal structure of the winch lifting mechanism in the utility model;

[0018] Figure 7 It is a schematic diagram of the connection relationship between the winch lifting mechanism and the frame in the utility model.

[0019] in:

[0020] 1-rear traveling mechanism, 2-cable clamp, 3-rear clamping mechanism, 4-clamping positioning mechanism, 5-frame, 6-winch lifting mechanism, 7-horizontal telescopic cylinder, 8-front clamping mechanism, 9-front traveling mechanism, 10-main cable,

[0021] 11-second fixed frame, 12-rear lifting cylinder, 13-rear travel wheel,

[0022] 31-fifth fixed frame, 32-third telescopic oil cylinder, 33-second clamping arm, 34-second arc-shaped clamping groove, 35-second rotating shaft, 41-fourth fixed frame, 42-second telescopic oil cylinder, 43-special-shaped clamping plate,

[0023] 61-reel motor, 62-guide wheel group, 63-friction wheel group, 64-fixed pulley group, 65-wire rope, 66-movable pulley group, 67-hydraulic motor, 68-hook, 69-fixed rod,

[0024] 81 - third fixed frame, 82 - first telescopic cylinder, 83 - first clamping arm, 84 - first arc-shaped clamping groove, 85 - first rotating shaft, 91 - first fixed frame, 92 - front lifting cylinder, 93 - front walking wheel. DETAILED DESCRIPTION

[0025] In order to facilitate those skilled in the art to understand the technical solution of the utility model, further description is now made with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model.

[0026] In the following detailed description, for ease of explanation, many specific details are set forth to provide a comprehensive understanding of the embodiments of the present invention. However, it is apparent that one or more embodiments may be implemented without these specific details. In addition, in the following description, descriptions of known structures and technologies are omitted to avoid unnecessary confusion of the concepts of the present invention.

[0027] like Figure 3 The figure shows the overall structure of the utility model straddling cable type crawling crane, which includes a motor unit and a frame 5. The frame 5 is saddle-shaped as a whole and can straddle the main cable 10. The frame 5 is a frame welded from steel plates and is the main structure of the entire crane. A horizontal telescopic oil cylinder 7 is arranged at the front end of the frame 5. The front end of the telescopic rod of the horizontal telescopic oil cylinder 7 is connected to a front clamping mechanism 8 that can be clamped on the outer periphery of the main cable. The front end of the front clamping mechanism 8 is connected to a front walking mechanism 9.

[0028] like Figure 2 As shown, a cable clamp 2 is installed at every other end of the main cable 10 for fixing. Therefore, in order to make the crane more stably installed on the main cable, a clamping and positioning mechanism 4 is provided at the rear end of the frame 5 for clamping on both sides of the cable clamp 2 on the main cable 10, which plays a role of auxiliary positioning. The rear end of the clamping and positioning mechanism 4 is connected to the rear clamping mechanism 3 that can be clamped on the outer periphery of the main cable, the front end of the rear clamping mechanism 3 is connected to the rear walking mechanism 1, and the bottom of the frame 5 is connected to the hoisting hoisting mechanism 6 for hoisting.

[0029] When the present embodiment is running on the main cable 10, first the rear clamping mechanism 3 clamps the main cable 10, the front clamping mechanism 8 is released, the horizontal telescopic cylinder 7 cooperates to extend to the maximum stroke, and then the two clamping mechanisms interchange actions, the horizontal telescopic cylinder 7 shortens to the minimum, and the steps are repeated to complete the crawling action of the crane on the main cable 10.

[0030] To sum up, the cable-riding crawling crane designed by the utility model relies on the telescopic movement of the horizontal telescopic cylinder. The front clamping mechanism and the rear clamping mechanism alternately clamp the main cable, driving the front walking mechanism and the rear walking mechanism to slide on the main cable, so that the crane can crawl independently suspended on a single main cable. The crawling crane overcomes the technical problems that traditional cable-mounted cranes can only be used for parallel main cables and that rigid beams are required to be used to connect cranes. It can adapt to main cables in various spatial forms, and can be used separately or in an integrated manner, thereby simplifying the installation process of steel beams of suspension bridges and improving work efficiency.

[0031] like Figure 3As shown, in this embodiment, the front traveling mechanism 9 includes a first fixed frame 91, a front lifting cylinder 92 is arranged at the bottom of the first fixed frame 91, and the bottom of the telescopic rod of the front lifting cylinder 92 is connected to the front traveling wheel 93, and the front traveling wheel 93 can slide on the main cable 10. Similarly, the rear traveling mechanism 1 includes a second fixed frame 11, a rear lifting cylinder 12 is arranged at the bottom of the second fixed frame 11, and the bottom of the telescopic rod of the rear lifting cylinder 12 is connected to the rear traveling wheel 13, and the rear traveling wheel 13 can slide on the main cable 10. When the frame 5 needs to cross the cable clamp 2 during the walking process, the rear lifting cylinder 12 and the front lifting cylinder 92 are extended to make the frame 5 as a whole higher than the cable clamp 2, thereby completing the crossing action.

[0032] like Figure 4 The figure shows a cross-sectional view of the front clamping mechanism and the rear clamping mechanism on the AA plane, wherein the front clamping mechanism 8 includes a third fixed frame 81 connected to the frame 5, the first telescopic cylinder 82 is symmetrically connected to the third fixed frame 81 on both sides, the telescopic rod ends of a pair of first telescopic cylinders 82 are connected to the first clamping arm 83, and the front end of the first clamping arm 83 is provided with a first arc-shaped clamping groove 84, the arc surface of the first arc-shaped clamping groove 84 is adapted to the outer arc surface of the main cable 10, and the upper end of the notch of the first arc-shaped clamping groove 84 is connected to the first rotating shaft 85 fixed on the third fixed frame 81, so that when the telescopic rods of a pair of first telescopic cylinders 82 are extended, the pair of first clamping arms 83 rotate with the first rotating shaft 85 as the center to the side close to the main cable 10 to clamp the main cable 10. Similarly, the rear clamping mechanism 3 includes a fifth fixed frame 31 connected to the frame 5, and the third telescopic cylinder 32 is symmetrically connected to the fifth fixed frame 31 on both sides, and the telescopic rod ends of a pair of third telescopic cylinders 32 are connected to the second clamping arm 33. The front end of the second clamping arm 33 is provided with a second arc-shaped clamping groove 34, and the arc surface of the second arc-shaped clamping groove 34 is adapted to the outer arc surface of the main cable 10. The upper end of the groove of the second arc-shaped clamping groove 34 is connected to the second rotating shaft 35 fixed on the fifth fixed frame 81, so that when the telescopic rods of a pair of third telescopic cylinders 32 are extended, the pair of second clamping arms 33 rotate with the second rotating shaft 35 as the center to the side close to the main cable 10 to clamp the main cable 10.

[0033] like Figure 5 As shown, it is a BB-surface cross-sectional view of the clamping and positioning mechanism, wherein the clamping and positioning mechanism 4 includes a fourth fixed frame 41 connected to the frame 5, the fourth fixed frame 41 is in an inverted U-shape as a whole, a pair of second telescopic cylinders 42 are symmetrically arranged in the inner walls on both sides of the fourth fixed frame 41, and special-shaped clamping plates 43 are respectively arranged at the front ends of the pair of second telescopic cylinders 42, and the plate surface shape of the special-shaped clamping plates 43 is adapted to the surface of the cable clamp 11, so that the plate surface of the cable clamp 11 can be clamped when stopping for auxiliary positioning, thereby improving the overall stability of the crane and preventing the crane from sliding down along the main cable.

[0034] like Figure 6-7As shown, in this embodiment, the winch lifting mechanism 6 includes a winding drum motor 61, a guide wheel group 62, a friction wheel group 63 and a fixed pulley group 64 fixed to the inner side of the bottom of the frame 5. The winding drum motor 61 only provides the function of collecting and releasing the wire rope 65. The wire rope 65 extended from the winding drum motor 61 passes through the guide wheel group 62, the friction wheel group 63, the fixed pulley group 64 in sequence and is connected to the movable pulley group 66. The friction wheel group 63 is driven by a hydraulic motor 67, and the bottom end of the movable pulley group 66 is connected to a hook 68. This embodiment provides a larger lifting force through the output amplification ratio formed by the movable and fixed pulleys.

[0035] In addition, in some embodiments, a fixing rod 69 is connected to the movable pulley block 66 , and an end of the fixing rod 69 is connected to the frame 5 , so as to assist in positioning the fixed pulley block 66 .

[0036] The above embodiments are merely descriptions of the preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A straddle cable type crawling crane, characterized in that: The invention comprises a motor group and a frame (5); the frame (5) is saddle-shaped as a whole and can straddle a main cable (10); a horizontal telescopic oil cylinder (7) is arranged at the front end of the frame (5); the front end of the telescopic rod of the horizontal telescopic oil cylinder (7) is connected to a front clamping mechanism (8) that can be clamped on the outer periphery of the main cable; the front end of the front clamping mechanism (8) is connected to a front traveling mechanism (9); a clamping and positioning mechanism (4) is arranged at the rear end of the frame (5) for clamping on both sides of a cable clamp (2) on the main cable (10); the rear end of the clamping and positioning mechanism (4) is connected to a rear clamping mechanism (3) that can be clamped on the outer periphery of the main cable; the front end of the rear clamping mechanism (3) is connected to a rear traveling mechanism (1); and the bottom of the frame (5) is connected to a hoisting and lifting mechanism (6) for hoisting.

2. The straddle cable crawler crane according to claim 1, characterized in that: The front traveling mechanism (9) comprises a first fixed frame (91); a front lifting cylinder (92) is arranged at the bottom of the first fixed frame (91); the bottom of the telescopic rod of the front lifting cylinder (92) is connected to a front traveling wheel (93); the front traveling wheel (93) can slide on the main cable; The rear walking mechanism (1) comprises a second fixed frame (11); a rear lifting cylinder (12) is arranged at the bottom of the second fixed frame (11); the bottom of the telescopic rod of the rear lifting cylinder (12) is connected to a rear walking wheel (13); and the rear walking wheel (13) can slide on the main cable.

3. The straddle cable crawling crane according to claim 2, characterized in that: The front clamping mechanism (8) comprises a third fixed frame (81) connected to the frame (5); the first telescopic oil cylinder (82) is symmetrically connected to both sides of the third fixed frame (81); the ends of the telescopic rods of a pair of first telescopic oil cylinders (82) are connected to the first clamping arm (83); the front end of the first clamping arm (83) is provided with a first arc-shaped clamping groove (84); the arc surface of the first arc-shaped clamping groove (84) is adapted to the outer arc surface of the main cable (10); the upper end of the notch of the first arc-shaped clamping groove (84) is connected to a first rotating shaft (85) fixed on the third fixed frame (81), so that when the telescopic rods of the pair of first telescopic oil cylinders (82) are extended, the pair of first clamping arms (83) rotate with the first rotating shaft (85) as the center toward the side close to the main cable (10); The rear clamping mechanism (3) comprises a fifth fixed frame (31) connected to the frame (5); the third telescopic oil cylinder (32) is symmetrically connected to both sides of the fifth fixed frame (31); the ends of the telescopic rods of a pair of third telescopic oil cylinders (32) are connected to the second clamping arm (33); a second arc-shaped clamping groove (34) is provided at the front end of the second clamping arm (33); the arc surface of the second arc-shaped clamping groove (34) is matched with the outer arc surface of the main cable (10); the upper end of the notch of the second arc-shaped clamping groove (34) is connected to the second rotating shaft (35) fixed on the fifth fixed frame (31), so that when the telescopic rods of the pair of third telescopic oil cylinders (32) are extended, the pair of second clamping arms (33) rotate with the second rotating shaft (35) as the center of the circle toward the side close to the main cable (10).

4. The straddle cable crawling crane according to claim 3, characterized in that: The clamping and positioning mechanism (4) comprises a fourth fixing frame (41) connected to the frame (5); the fourth fixing frame (41) is in an inverted U shape as a whole; a pair of second telescopic oil cylinders (42) are symmetrically arranged in the inner walls on both sides of the fourth fixing frame (41); a pair of second telescopic oil cylinders (42) are respectively provided with special-shaped clamping plates (43) at the front ends; the plate surface shape of the special-shaped clamping plates (43) is adapted to the surface of the cable clamp (2).

5. The straddle cable type crawling crane according to claim 4, characterized in that: The hoisting mechanism (6) comprises a winding drum motor (61), a guide wheel group (62), a friction wheel group (63) and a fixed pulley group (64) fixed to the inner side of the bottom of the frame (5); a steel wire rope (65) extending from the winding drum motor (61) passes through the guide wheel group (62), the friction wheel group (63), the fixed pulley group (64) in sequence and is connected to the movable pulley group (66); the friction wheel group (63) is driven by a hydraulic motor (67); and the bottom end of the movable pulley group (66) is connected to a hook (68).

6. The straddle cable type crawling crane according to claim 5, characterized in that: The fixed pulley block (64) is connected to a fixed rod (69), and the end of the fixed rod (69) is connected to the frame (5).

Images