CN212269236U - Height-limiting hydraulic rail clamping device easy to adjust - Google Patents

Abstract

The utility model provides a limit for height and hydraulic pressure rail clamping device of easily adjusting, including guider, the last leading wheel that is equipped with of braced frame, it has the traction seat to articulate on one of them braced frame, the tip at hoist lower extreme roof beam is fixed to the traction seat, the last clamping device that is equipped with of guider, clamping device's the outside is equipped with the equidistance device that moves back, clamping device includes the fixed plate, one side of braced frame is equipped with first tong arm, braced frame's opposite side is equipped with the second tong arm, the lower extreme of first tong arm and second tong arm all is fixed with the clamp, be equipped with elasticity adjustable elastic device between first tong arm and the second tong arm, the top of elastic device is equipped with hydraulic cylinder, hydraulic cylinder's stiff end articulates the upper end at first tong arm through the round pin axle, hydraulic cylinder's free end articulates the upper end at the second tong arm through the round. The utility model discloses simple structure, device installation convenient to use can play the fixed action to outdoor hoist.

Description

Height-limiting hydraulic rail clamping device easy to adjust

Technical Field

The utility model belongs to the technical field of hoisting machinery equipment, especially, relate to a hydraulic pressure rail clamping device of limit for height and easy adjustment.

Background

The rail type crane working outdoors, such as a portal crane, a portal crane and the like, is provided with a windproof and anti-skid device for preventing the rail type crane from being blown away by strong wind, the rail clamping device is a safe windproof and anti-skid device for the crane, can prevent the invasion of sudden gusts and play a windproof role in the working state of the crane due to the fact that the crane is blown away by the strong wind because the windproof and anti-skid device is not arranged at home and abroad or the failure of the device causes serious accidents of car running, car collision and car overturning, and the rail clamping device is a clamp connected with the bottom structure of the crane and clamps two side surfaces of the head of the rail to prevent sliding. The height of the existing rail clamping device is high, the rail clamping device is large and heavy in size and inconvenient to install and use, a hydraulic system of the existing rail clamping device needs a manual release device, the overall structure of the rail clamping device is heavier, and the problem that a clamp is abraded by a clamp due to the fact that the clamp arms of the existing rail clamping device are uneven in back distance is solved.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the unreasonable and inconvenient problem of installation of current rail clamping device structure, provide a hydraulic pressure rail clamping device of limit for height and easy adjustment, including guider, guider includes that two symmetries set up the braced frame who is the rectangle, and braced frame's lower extreme is equipped with the opening, and two braced frame's upper portion links firmly through the connecting plate, all is equipped with the leading wheel on two braced frame, but leading wheel free rotation, the leading wheel cooperates with the cart walking track roll-in of hoist. One of the supporting frames is hinged with a U-shaped traction seat, the traction seat can be detachably fixed at the end part of the lower end beam of the crane, and the traction seat is hinged with the lower end beam of the crane. Be equipped with clamping device on the guider, clamping device's the outside is equipped with the equidistance device that moves back, and clamping device includes the fixed plate that two symmetries and interval set up, and the fixed plate plays the fixed effect of support, and the fixed plate corresponds respectively and fixes the inboard at two braced frame, and the both ends of fixed plate are equant apart from extending braced frame, and the through-hole has all been seted up to the tip of two fixed plates. The crane walking rail clamp comprises a supporting frame, a first clamping arm and a second clamping arm, wherein the first clamping arm is L-shaped, the second clamping arm is L-shaped, the first clamping arm and the second clamping arm are symmetrically arranged, the lower end of the first clamping arm is hinged between two fixing plates on one side of the supporting frame through a pin shaft, the lower end of the second clamping arm is hinged between two fixing plates on the other side of the supporting frame through a pin shaft, the first clamping arm and the second clamping arm can freely rotate around the pin shaft, clamps are fixed at the lower ends of the first clamping arm and the second clamping arm and are respectively located on two sides of a crane walking rail, and when the crane walking rail clamp is used, the two clamps are attached to and clamped with the side face of the crane walking rail, friction force is generated between the clamps and the crane walking rail, and accordingly a crane can be fixed on the crane walking rail. An elastic device with adjustable elasticity is arranged between the first clamping arm and the second clamping arm, the elastic device plays an elastic role on the first clamping arm and the second clamping arm and provides clamping force for clamping a crane walking track for the first clamping arm and the second clamping arm, one end of the elastic device is hinged to the first clamping arm, the other end of the elastic device is hinged to the second clamping arm, a hydraulic oil cylinder is arranged above the elastic device and provides power for the first clamping arm and the second clamping arm, the fixed end of the hydraulic oil cylinder is hinged to the upper end of the first clamping arm through a pin shaft, the free end of the hydraulic oil cylinder is hinged to the upper end of the second clamping arm through a pin shaft, when the free end of the hydraulic oil cylinder retracts, the lower ends of the first clamping arm and the second clamping arm are separated from the crane walking track, and the crane can move freely. The elastic device comprises a first supporting rod and a second supporting rod which are horizontally and symmetrically arranged, the first supporting rod is rotatably connected to the upper portion of the first clamping arm, the second supporting rod is rotatably connected to the upper portion of the second clamping arm, the first clamping arm and the second clamping arm extend out of the first supporting rod and the second supporting rod at equal intervals, assembling through holes are formed in the end portions of the first supporting rod and the second supporting rod, two symmetrically arranged sliding rods are arranged between the first supporting rod and the second supporting rod, the end portions of the two sliding rods are correspondingly assembled on the first supporting rod and the second supporting rod respectively, the end portions of the two sliding rods extend out of the first supporting rod and the second supporting rod respectively, locking nuts are connected to the two ends of the sliding rods in a threaded mode and play a fixing role, fixing nuts are arranged at the end portions of the sliding rods on the inner side of the second supporting rod, the fixing nuts are in abutting contact with the second supporting rod, and the compression springs are sleeved on the sliding rods between the first supporting rod and the second supporting rod and provide elasticity for the first clamping arm and the second clamping arm. Compression spring's both ends all are equipped with and keep off the ring, keep off the ring and play and block spacing effect, keep off the ring cover and establish on the slide bar, and keep off the diameter of ring and be greater than the external diameter of spring, have offered the external screw thread on being close to the slide bar of second bracing piece, and the fender ring outside that is close to first bracing piece is equipped with the pressure regulating nut, and pressure regulating nut threaded connection is in the external screw thread department of slide bar.

Preferably, first clamp arm and second clamp arm all include the arm board that two parallel intervals set up, correspond the pilot hole of seting up on two arm boards, and the pilot hole department between two arm boards is fixed with the sleeve, and the bottom of two arm boards is equipped with the clamp fixed plate, and the clamp can be dismantled and fix on the clamp fixed plate.

Preferably, the equal-back-distance device comprises a first adjusting plate and a second adjusting plate which are symmetrically arranged, the first adjusting plate and the second adjusting plate are L-shaped, the middle of the first adjusting plate is rotatably connected to a pin shaft at the lower end of the first clamping arm, the middle of the second adjusting plate is rotatably connected to a pin shaft at the lower end of the second clamping arm, U-shaped grooves are formed in the upper end of the first adjusting plate and the upper end of the second adjusting plate, the upper end of the first adjusting plate is hinged to the first clamping arm through the U-shaped grooves, the upper end of the second adjusting plate is hinged to the second clamping arm through the U-shaped grooves, an oval through hole is formed in the lower end of the first adjusting plate, a fixing column is arranged at the lower end of the second adjusting plate, the fixing column is sleeved in the oval through hole, and the first adjusting.

Preferably, the oil inlet of the hydraulic oil cylinder and the exhaust port of the hydraulic oil cylinder are both connected with a hydraulic pump station.

Preferably, a proximity switch bracket is fixed at the top end of the second clamp arm, a proximity switch is assembled on the proximity switch bracket, and when the free end of the hydraulic oil cylinder retracts to a certain position, the proximity switch plays a role in limiting.

Preferably, the proximity switch and the hydraulic oil cylinder are both connected with a PLC control system.

The scheme has the following advantages:

the elastic device and the hydraulic oil cylinder are horizontally arranged between the first clamping arm and the second clamping arm, so that the overall height of the rail clamping device is reduced to a great extent, the rail clamping device is more reasonable in structure and more convenient to mount and use; the arrangement of the elastic device provides force for clamping the crane walking track for the first clamping arm and the second clamping arm, the pressure regulating nut on the elastic device can regulate the elastic force of the compression spring according to the requirement, and meanwhile, when the hydraulic oil cylinder breaks down, the clamp can be separated from the crane walking track by disassembling the locking nut; the arrangement of the equal-back-distance device can enable the first clamping arm and the second clamping arm to move in the same direction or back to back at equal distance.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic view of the structure of the present invention;

fig. 3 is a schematic top view of the present invention;

fig. 4 is a left side view structure diagram of the present invention;

FIG. 5 is a schematic structural diagram of an equal-displacement device;

FIG. 6 is a schematic structural view of the support frame and the fixing plate;

FIG. 7 is a schematic view of the first clamp arm configuration.

Reference numerals: 1. a guide device; 2. a clamping device; 3. an equal-backlash device; 4. a pin shaft; 5. an elastic device; 6. a hydraulic cylinder; 7. a proximity switch; 11. a support frame; 12. a connecting plate; 13. a guide wheel; 14. a traction seat; 21. a fixing plate; 22. a first clamp arm; 221. an arm plate; 222. a sleeve; 23. a second clamp arm; 24. clamping; 241. a clamp fixing plate; 31. a first adjusting plate; 32. a second adjusting plate; 33. a U-shaped groove; 34. an elliptical through hole; 35. fixing a column; 51. a first support bar; 52. a second support bar; 53. a slide bar; 54. locking the nut; 55. fixing a nut; 56. a compression spring; 57. a baffle ring; 58. a pressure regulating nut; 71. a proximity switch bracket.

Detailed Description

As shown in fig. 1-7, a hydraulic rail clamping device with height limitation and easy adjustment comprises a guide device 1, wherein the guide device 1 comprises two support frames 11 which are symmetrically arranged and are rectangular, an opening is formed in the lower end of each support frame 11, the upper parts of the two support frames 11 are fixedly connected through a connecting plate 12, guide wheels 13 are assembled on the two support frames 11, the guide wheels 13 can freely rotate, and the guide wheels 13 are in rolling fit with a cart walking track of a crane. One of the supporting frames 11 is hinged with a U-shaped traction seat 14, the traction seat 14 is detachably fixed at the end part of the lower end beam of the crane, and the traction seat 14 is hinged with the lower end beam of the crane. Be equipped with clamping device 2 on guider 1, clamping device 2's the outside is equipped with equal back-off distance device 3, and clamping device 2 includes the fixed plate 21 that two symmetries and interval set up, and fixed plate 21 plays and supports fixed effect, and fixed plate 21 corresponds respectively and fixes the inboard at two braced frame 11, and braced frame 11 is extended to the impartial distance in both ends of fixed plate 21, and the through-hole has all been seted up to the tip of two fixed plates 21. The crane walking rail clamp comprises a supporting frame 11, wherein an L-shaped first clamp arm 22 is arranged on one side of the supporting frame 11, an L-shaped second clamp arm 23 is arranged on the other side of the supporting frame 11, the first clamp arm 22 and the second clamp arm 23 are symmetrically arranged, the lower end of the first clamp arm 22 is hinged between two fixing plates 21 on one side of the supporting frame 11 through a pin shaft 4, the lower end of the second clamp arm 23 is hinged between the two fixing plates 21 on the other side of the supporting frame 11 through the pin shaft 4, the first clamp arm 22 and the second clamp arm 23 can freely rotate around the pin shaft 4, the lower ends of the first clamp arm 22 and the second clamp arm 23 are respectively fixed with two clamps 24, the two clamps 24 are respectively located on two sides of a crane walking rail, when the crane walking rail clamp is used, the two clamps 24 are attached to and clamped with the side surface of the crane walking rail, and friction force is generated between the clamps 24 and the crane walking rail, so that the crane. An elastic device 5 with adjustable elasticity is arranged between the first clamping arm 22 and the second clamping arm 23, the elastic device 5 plays an elastic role on the first clamping arm 22 and the second clamping arm 23 to provide clamping force for clamping a crane walking track for the first clamping arm 22 and the second clamping arm 23, one end of the elastic device 5 is hinged with the first clamping arm 22, the other end of the elastic device 5 is hinged with the second clamping arm 23, a hydraulic oil cylinder 6 is arranged above the elastic device 5, the hydraulic oil cylinder 6 provides power for the first clamping arm 22 and the second clamping arm 23, the fixed end of the hydraulic oil cylinder 6 is hinged at the upper end of the first clamping arm 22 through a pin shaft 4, the free end of the hydraulic oil cylinder 6 is hinged at the upper end of the second clamping arm 23 through the pin shaft 4, when the free end of the hydraulic oil cylinder 6 retracts, the lower ends of the first clamp arm 22 and the second clamp arm 23 are separated from the crane walking track, and the crane can move freely. The elastic device 5 comprises a first support rod 51 and a second support rod 52 which are horizontally and symmetrically arranged, the first support rod 51 is rotatably connected to the upper part of the first clamping arm 22, the second support rod 52 is rotatably connected to the upper part of the second clamping arm 23, the first support rod 51 and the second support rod 52 extend out of the first clamping arm 22 and the second clamping arm 23 at equal intervals, assembling through holes are respectively formed at the end parts of the first support rod 51 and the second support rod 52, two symmetrically arranged slide bars 53 are arranged between the first support rod 51 and the second support rod 52, the end parts of the two slide bars 53 are respectively and correspondingly assembled on the first support rod 51 and the second support rod 52, the end parts of the two slide bars 53 extend out of the first support rod 51 and the second support rod 52, locking nuts 54 are respectively and threadedly connected at the two ends of the slide bars 53, the locking nuts 54 play a role in fixing, fixing nuts 55 are arranged at the end parts of the slide bars 53 inside the second support rod 52, the fixing nut 55 is in tight contact with the second support rod 52, and the sliding rods 53 between the first support rod 51 and the second support rod 52 are sleeved with compression springs 56, and the compression springs 56 provide elastic force for the first clamping arm 22 and the second clamping arm 23. Both ends of the compression spring 56 are provided with a baffle ring 57, the baffle ring 57 plays a role in stopping and limiting, the baffle ring 57 is sleeved on the sliding rod 53, the diameter of the baffle ring 57 is larger than the outer diameter of the spring, an external thread is arranged on the sliding rod 53 close to the second supporting rod 52, a pressure regulating nut 58 is arranged on the outer side of the baffle ring 57 close to the first supporting rod 51, and the pressure regulating nut 58 is in threaded connection with the external thread of the sliding rod 53.

Preferably, the first clamping arm 22 and the second clamping arm 23 each include two arm plates 221 arranged in parallel at intervals, assembly holes are correspondingly formed in the two arm plates 221, a sleeve 222 is fixed at the assembly hole between the two arm plates 221, a clamp fixing plate 241 is arranged at the bottom of the two arm plates 221, and the clamp 24 is detachably fixed on the clamp fixing plate 241.

Preferably, the equal-backlash device 3 includes a first adjusting plate 31 and a second adjusting plate 32 which are symmetrically arranged, both the first adjusting plate 31 and the second adjusting plate 32 are L-shaped, the middle portion of the first adjusting plate 31 is rotatably connected to a pin shaft 4 at the lower end of the first clamping arm 22, the middle portion of the second adjusting plate 32 is rotatably connected to a pin shaft 4 at the lower end of the second clamping arm 23, U-shaped grooves 33 are respectively formed at the upper ends of the first adjusting plate 31 and the second adjusting plate 32, the upper end of the first adjusting plate 31 is hinged to the first clamping arm 22 through the U-shaped grooves 33, the upper end of the second adjusting plate 32 is hinged to the second clamping arm 23 through the U-shaped grooves 33, an elliptical through hole 34 is formed at the lower end of the first adjusting plate 31, a fixing column 35 is arranged at the lower end of the second adjusting plate 32, the fixing column 35 is sleeved in the elliptical through hole 34, and the first adjusting plate 31 and the.

Preferably, the oil inlet of the hydraulic oil cylinder 6 and the exhaust port of the hydraulic oil cylinder 6 are both connected with a hydraulic pump station.

Preferably, a proximity switch bracket 71 is fixed at the top end of the second clamp arm 23, a proximity switch 7 is assembled on the proximity switch bracket 71, and when the free end of the hydraulic oil cylinder 6 retracts to a certain position, the proximity switch 7 plays a role in limiting.

Preferably, the proximity switch 7 and the hydraulic oil cylinder 6 are both connected with a PLC control system.

The use process comprises the following steps:

the utility model discloses during the use, leading wheel 13 roll-in cooperation is on crane cart walking track, the tip of fixing at hoist lower extreme roof beam can be dismantled to traction seat 14, clamp 24 is located crane cart walking orbital both sides, during crane operation, hydraulic cylinder 6 starts under PLC control system's control, hydraulic cylinder 6's free end is returned and is retracted, first tong arm 22 and second tong arm 23 are under hydraulic cylinder 6's traction, first tong arm 22 and second tong arm 23 lower extreme move dorsad, compression spring 56 is extruded this moment, first bracing piece 51 is worn out to slide bar 53's tip, move the in-process, under the effect of equidistance device 3 that waits, two 24 equidistance removal dorsad, clamp 24 breaks away from the orbital contact to crane cart walking, but the hoist freely moves on cart walking track. When the crane is used and needs to be parked, the hydraulic oil cylinder 6 is released, the compression spring 56 pushes the first supporting rod 51, the second supporting rod 52 and the supporting rod 52, and the upper ends of the first clamp arm 22 and the second clamp arm 23 move back, namely the two clamps 24 move towards the crane cart walking track in the same direction until the two clamps 24 are contacted with and tightly propped against the crane cart walking track, so that the crane is fixed. When the hydraulic oil cylinder 6 has a fault, the locking nut 54 on the second clamp arm 23 is rotated, the elastic device 5 is dismounted, and the clamp 24 can be prevented from fixing the crane walking track.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", "horizontal", "vertical", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and simplification of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model.

Claims (8)

1. The utility model provides a limit for height and hydraulic pressure that easily adjusts presss from both sides rail ware, includes guider, and guider includes that two symmetries set up the braced frame that is the rectangle, and two braced frame's upper portion links firmly through the connecting plate, all is equipped with the leading wheel on two braced frames, and the leading wheel cooperates with the cart walking track roll-in of hoist, and articulated on one of them braced frame have the seat that pulls that is the U type, and the seat that pulls can dismantle the tip of fixing at hoist lower extreme roof beam, its characterized in that: the guide device is provided with a clamping device, the outer side of the clamping device is provided with an equal-back distance device, the clamping device comprises two symmetrical fixing plates which are arranged at intervals, the fixing plates are respectively and correspondingly fixed at the inner sides of two supporting frames, two ends of each fixing plate are extended out of the corresponding supporting frame at equal distances, one side of each supporting frame is provided with an L-shaped first clamping arm, the other side of each supporting frame is provided with an L-shaped second clamping arm, the first clamping arm and the second clamping arm are symmetrically arranged, the lower end of the first clamping arm is hinged between the two fixing plates at one side of the corresponding supporting frame through a pin shaft, the lower end of the second clamping arm is hinged between the two fixing plates at the other side of the corresponding supporting frame through a pin shaft, clamps are fixed at the lower ends of the first clamping arm and the second clamping arm, an elastic device with adjustable elasticity is arranged between the first clamping arm and the second clamping arm, one end of the elastic device is hinged with the first, the other end of the elastic device is hinged with the second clamping arm, a hydraulic oil cylinder is arranged above the elastic device, the fixed end of the hydraulic oil cylinder is hinged at the upper end of the first clamping arm through a pin shaft, and the free end of the hydraulic oil cylinder is hinged at the upper end of the second clamping arm through a pin shaft.

2. A height limited and easily adjustable hydraulic rail clamp as defined in claim 1, wherein: the elastic device comprises a first supporting rod and a second supporting rod which are horizontally and symmetrically arranged, the first supporting rod is rotatably connected to the upper part of the first clamping arm, the second supporting rod is rotatably connected to the upper part of the second clamping arm, the first clamping arm and the second clamping arm extend out of the first supporting rod and the second supporting rod at equal intervals, assembling through holes are formed in the end parts of the first supporting rod and the second supporting rod, two symmetrically arranged sliding rods are arranged between the first supporting rod and the second supporting rod, the end parts of the two sliding rods are correspondingly assembled on the first supporting rod and the second supporting rod respectively, and the end parts of the two sliding rods extend out of the first supporting rod and the second supporting rod respectively, and the both ends of slide bar are all threaded connection has lock nut, and the inboard slide bar tip of second bracing piece is equipped with fixation nut, and fixation nut and the tight contact in second bracing piece top, and all overlap on the slide bar between first bracing piece and the second bracing piece and be equipped with compression spring.

3. A height limited and easily adjustable hydraulic rail clamp as defined in claim 2, wherein: both ends of the compression spring are respectively provided with a baffle ring, the baffle ring is sleeved on the slide bar, the diameter of the baffle ring is larger than the outer diameter of the spring, an external thread is arranged on the slide bar close to the second support bar, a pressure regulating nut is arranged on the outer side of the baffle ring close to the first support bar, and the pressure regulating nut is in threaded connection with the external thread of the slide bar.

4. A height limited and easily adjustable hydraulic rail clamp as defined in claim 3 wherein: the first clamping arm and the second clamping arm respectively comprise two arm plates which are arranged in parallel at intervals, assembling holes are correspondingly formed in the two arm plates, and a sleeve is fixed at the assembling hole between the two arm plates; the bottom of two arm boards is equipped with the clamp fixed plate, and the clamp can be dismantled and fix on the clamp fixed plate.

5. A height-limited and easily adjustable hydraulic rail clamp as defined in claim 4, wherein: the equal-back-distance device comprises a first adjusting plate and a second adjusting plate which are symmetrically arranged, the first adjusting plate and the second adjusting plate are L-shaped, the middle of the first adjusting plate is rotatably connected to a pin shaft at the lower end of a first clamping arm, the middle of the second adjusting plate is rotatably connected to a pin shaft at the lower end of a second clamping arm, U-shaped grooves are formed in the upper end of the first adjusting plate and the upper end of the second adjusting plate, the upper end of the first adjusting plate is hinged to the first clamping arm through the U-shaped grooves, the upper end of the second adjusting plate is hinged to the second clamping arm through the U-shaped grooves, an oval through hole is formed in the lower end of the first adjusting plate, a fixing column is arranged at the lower end of the second adjusting plate.

6. A height-limited and easily adjustable hydraulic rail clamp as defined in claim 5, wherein: and a proximity switch bracket is fixed at the top end of the second clamp arm, and a proximity switch is assembled on the proximity switch bracket.

7. A height-limited and easily adjustable hydraulic rail clamp as defined in claim 6, wherein: the oil inlet of the hydraulic oil cylinder and the exhaust port of the hydraulic oil cylinder are both connected with a hydraulic pump station.

8. A height limited and easily adjustable hydraulic rail clamp as defined in claim 7 wherein: the proximity switch and the hydraulic oil cylinder are connected with the PLC control system.

Images