CN201834680U - Low clearance flexibly connected crane car - Google Patents

Abstract

A new low headroom flexible connection crane trolley, including a frame, a hoisting mechanism, a hook set and a running mechanism; the frame includes a transmission side end beam, a non-transmission side end beam, and a front fixed Distance beam, a rear distance beam and a beam; the distance beam and the end beam are connected to form a plane frame, and the beam is placed on the end beam; the fixed pulley block is arranged inside the beam; the fixed end of the wire rope and the weighing device are arranged on the upper part of the beam . The lifting mechanism includes a lifting motor, a reducer and a reel. The reducer is installed outside the end beam on the transmission side, the input shaft of the reducer is connected to the hoisting motor, the output shaft is connected to the drive end of the reel, the supporting end of the reel is fixed on the end beam on the non-drive side, and a steel wire rope is installed on the reel The hook set includes a hook and a hook pulley block; its operating mechanism is in the form of a "three-in-one" reducer, which are respectively arranged at the same end of the two end beams. The small car is small, light in weight, high in load-bearing accuracy, and runs smoothly.

Description

Low headroom flexible linkage crane trolley

technical field

The utility model relates to the technical field of cranes, in particular to a low headroom flexible connection crane trolley.

Background technique

The crane trolley includes a trolley frame, a hoisting mechanism and an operating mechanism, and the trolley frame is a frame for supporting and installing the hoisting mechanism and the operating mechanism. When designing, it requires sufficient strength and certain rigidity, light weight, low headroom, low noise, and convenient manufacturing and installation.

At present, the design of cranes in our country is too conservative, and the weight and size of the trolley are almost twice as large as those imported from abroad due to reasons such as craftsmanship.

Utility model content

The utility model provides a new low clearance flexible connection crane trolley. It overcomes various defects in the prior art.

The technical scheme of the utility model is:

A new low headroom flexible connection crane trolley, including a frame, a hoisting mechanism, a hook set and a running mechanism; the frame includes a transmission side end beam, a non-transmission side end beam, and a front fixed Distance beam, a rear distance beam and a beam; the distance beam and the end beam are connected to form a plane frame, and the beam is placed on the end beam; the fixed pulley block is arranged inside the beam; the fixed end of the wire rope and the weighing device are arranged on the upper part of the beam The lifting mechanism includes a lifting motor, a reducer and a reel; the reducer is installed outside the end beam on the transmission side, the input shaft of the reducer is connected with the lifting motor, and the output shaft is connected with the driving end of the reel, The supporting end of the reel is fixed on the non-transmission side end beam, and the reel is equipped with a wire rope; the hook set includes a hook and a hook pulley block; the operating mechanism is in the form of a "three-in-one" reducer, and the operating mechanism They are respectively arranged at the same end of the two end beams.

The beam is simply supported on the end beam, and the end beam and the distance beam are connected by bolts; a hoisting weight limit mechanism is provided in the middle of the rear distance beam, and a wire rope guide track is installed on the front distance beam. .

A wire rope guide is also arranged on the reel.

The reducer is hinged with the transmission side end beam through a pin shaft, hinged with the hoisting motor through an elastic plum blossom coupling, and hinged with the reel driving end through a drum coupling, and the output shaft of the reducer is also hinged A rotating lifting limit mechanism is installed; the lifting motor is a variable frequency motor with a disc brake.

The end beam includes an end beam body and a trolley. The lower part of the trolley is equipped with two traveling wheels. The trolley is set on one end of the end beam body and is hinged with the end beam body through a pin shaft. The end beam body Another traveling wheel is installed at the other end.

The three traveling wheels on the transmission end beam are wheels with flat rims; the traveling wheels at both ends of the non-transmission end beam are wheels with rims, and the traveling wheels in the middle are wheels with flat rims.

In the "three-in-one" driving mechanism, the driving motor is a variable frequency motor with a disc brake, and the output shaft of the reducer is a hollow shaft.

The supporting end of the reel is in the form of a short shaft, and is connected with the reel body through a self-aligning bearing.

The weighing device includes a supporting shaft and a load-bearing sensor installed horizontally on the upper part of the beam.

The fixed end of the steel wire rope includes a steel wire rope wedge joint and a wedge sleeve hanging plate; the steel wire rope wedge joint is connected below the wedge sleeve hanging plate, and the wedge sleeve hanging plate is installed on the support shaft on the upper part of the beam; the steel wire rope is left and right The two steel wire ropes are installed in the right-hand and left-hand rope grooves of the drum respectively.

The hook set is manufactured according to the DIN15402 standard and has a strength level of V.

Beneficial Effects of Utility Models

(1) By installing the reducer on the side of the end beam, the headroom of the trolley is small.

(2) The design of the fixed distance beam is adopted to replace the existing integral trolley frame, which makes the trolley light in weight.

(3) The method of directly measuring the tensile deformation of the steel wire rope is used to replace the existing method of measuring the pressure at the shaft end of the reel, so that the force of the steel wire rope can be measured more accurately, and the accuracy rate is higher.

(4) Flexible connection means: the driving end of the wire rope drum and the hoisting reducer are connected by a drum coupling, which is easy to install; the hoisting reducer and the frequency conversion motor with a disc brake are connected through an elastic plum blossom coupling, adjusting Installation error; the hoisting reducer and the end beam are connected by a pin shaft, which releases the impact load of the reducer during operation and prolongs the life of the reducer; the trolley and the end beam body are connected by a pin shaft to ensure that all wheels are in full contact with the track, eliminating " Three legs" phenomenon.

(5) The trolley adopts a 6-wheel structure, replacing the 4-wheel structure of the existing trolley. The local wheel pressure on the track is reduced, and the stress state of the main girder of the crane is better.

(6) The layout of the 6 wheels is that the three wheels on the transmission side of the lift are flat wheels, the wheels on both ends of the three wheels on the non-transmission side are wheels with rims, and the middle wheels are also flat wheels. It can well prevent the phenomenon of rail gnawing.

(7) Both the hoisting motor and the running motor are variable-frequency motors, which reduce the impact load during work, and the crane runs more smoothly, quieter and more energy-saving.

(8) Disc brakes are used, which are installed inside the lifting motor and running motor to replace the existing electromagnetic and hydraulic brakes, making the trolley smaller in size and lighter in weight.

(9) Two sets of mechanisms, the rotary lifting limit mechanism and the lifting weight limit mechanism, are used to replace the existing heavy hammer limit mechanism, which is safer and more reliable.

(10) use wire rope rope guide, fill up the blank of prior art without the mechanism that prevents wire rope from disorderly rope, prolong the life-span of wire rope, safer.

(11) Adopt two steel wire ropes of left and right rotation, cooperate with reel right left rotation rope groove, replace a steel wire rope winding of prior art. When the wire rope is stressed, it fits closer to the drum and is safer.

(12) Adopt the V-level hook of DIN15402 standard to replace the M and P-level hooks of GB10051 standard in the prior art, with smaller size and higher strength.

Description of drawings

Figure 1 is the front view of the car;

Figure 2 is a top view of the trolley;

Fig. 3 is a front view of the trolley frame;

Fig. 4 is a top view of the trolley frame;

Figure 5 is a front view of the beam;

Fig. 6 is crossbeam A-A sectional drawing;

Fig. 7 is crossbeam B-B sectional view;

Fig. 8 is a transmission end beam diagram;

Figure 9 is a non-transmission end beam diagram;

Figure 10 is a diagram of the lifting mechanism.

Detailed ways

See Figure 1-10, in which 1. hook assembly, 2. lifting limit mechanism, 3. reducer, 4. lifting motor, 5. wire rope guide, 6. reel, 7. trolley frame , 8. Operating mechanism, 9. Limiting mechanism of lifting weight, 10. Non-transmission end beam, 11. Beam, 12. Transmission end beam, 13. Rear distance beam, 14. Fixed end of wire rope, 15. Front fixed Distance beam, 16. Load-bearing sensor, 17. Support shaft, 18. Wedge joint, 19. Pin shaft, 20. Fixed pulley, 21. Bearing, 22. Pulley block, 23. Trolley, 24. Pin shaft, 25. Transmission end Beam body, 26. Traveling wheel, 27. Traveling wheel, 28. Traveling wheel, 29. Traveling wheel, 30. Non-transmission end beam body, 31. Traveling wheel, 32. Pin shaft, 33. Traveling wheel, 34. Trolley , 35. Couplings, 36. Bearings.

Embodiment: A new low headroom flexible connection crane trolley, including a frame, a lifting mechanism, a hook set and a running mechanism; the frame includes a transmission side end beam, a non-transmission side end beam, a A front distance beam, a rear distance beam and a crossbeam; the distance beam and the end beam are connected to form a plane frame, and the crossbeam is placed on the end beam; fixed pulleys are arranged inside the crossbeam; the upper part of the crossbeam is provided with a wire rope fixed end and Weighing device; the lifting mechanism includes a lifting motor, a reducer and a reel; the reducer is installed outside the end beam on the transmission side, the input shaft of the reducer is connected with the lifting motor, and the output shaft is driven by the reel end connection, the supporting end of the reel is fixed on the non-transmission side end beam, and the reel is equipped with a wire rope; the hook set includes a hook and a hook pulley block; the operating mechanism is a "three-in-one" reducer form , the operating mechanism is respectively set at the same end of the two end beams.

The beam is simply supported on the end beam, and the end beam and the distance beam are connected by bolts; a hoisting weight limit mechanism is provided in the middle of the rear distance beam, and a wire rope guide track is installed on the front distance beam. .

A wire rope guide is also arranged on the reel.

The reducer is hinged with the transmission side end beam through a pin shaft, hinged with the hoisting motor through an elastic plum blossom coupling, and hinged with the reel driving end through a drum coupling, and the output shaft of the reducer is also hinged A rotating lifting limit mechanism is installed; the lifting motor is a variable frequency motor with a disc brake.

The end beam includes an end beam body and a trolley. The lower part of the trolley is equipped with two traveling wheels. The trolley is set on one end of the end beam body and is hinged with the end beam body through a pin shaft. The end beam body Another traveling wheel is installed at the other end.

The three traveling wheels on the transmission end beam are wheels with flat rims; the traveling wheels at both ends of the non-transmission end beam are wheels with rims, and the traveling wheels in the middle are wheels with flat rims.

In the "three-in-one" driving mechanism, the driving motor is a variable frequency motor with a disc brake, and the output shaft of the reducer is a hollow shaft.

The supporting end of the reel is in the form of a short shaft, and is connected with the reel body through a self-aligning bearing.

The weighing device includes a supporting shaft and a load-bearing sensor installed horizontally on the upper part of the beam.

The fixed end of the steel wire rope includes a steel wire rope wedge joint and a wedge sleeve hanging plate; the steel wire rope wedge joint is connected below the wedge sleeve hanging plate, and the wedge sleeve hanging plate is installed on the support shaft on the upper part of the beam; the steel wire rope is left and right The two steel wire ropes are installed in the right-hand and left-hand rope grooves of the drum respectively.

The hook set is manufactured according to the DIN15402 standard and has a strength level of V.

Claims (10)

1. the flexible monkey that connects of novel low clearance comprises vehicle frame, lifting mechanism, suspension hook group and operating unit; It is characterized in that: described vehicle frame comprises a transmission side end carriage, a non-transmission side end carriage, and a predetermination is apart from beam, spacing beam and a crossbeam after one; Spacing beam and end carriage connect and compose plane framework, and crossbeam is placed on the end carriage; Described crossbeam inside is provided with the fixed pulley group; Crossbeam top is provided with steel rope fixed end and weighting apparatus; Described lifting mechanism comprises lifting motor, reductor and reel; Described retarder is installed in the transmission side end carriage outside, and reducer input shaft connects with lifting motor, and output shaft connects with the reel drive end, and the reel supported end is fixed on the non-transmission side end carriage, and steel rope is housed on the reel; Described suspension hook group comprises suspension hook and lifting hook pulley group; Described operating unit is " three-in-one " retarder form, and operating unit is separately positioned on the same end of two end carriages.

2. the flexible monkey that connects of novel low clearance according to claim 1, it is characterized in that: described crossbeam freely-supported is on end carriage, and the connecting mode of end carriage and spacing beam is a bolted connection; Middle part at back spacing beam is provided with the weight stop gear that hoists, and predetermination is equipped with steel rope rope guide track on beam.

3. the flexible monkey that connects of novel low clearance according to claim 1 is characterized in that: also be provided with the steel rope rope guide above the described reel.

4. the flexible monkey that connects of novel low clearance according to claim 1, it is characterized in that: described retarder and transmission side end carriage are hinged by bearing pin, hinged with lifting motor by elasticity plum blossom coupler, hinged with the reel drive end by the cydariform coupler, also be equipped with on the output shaft of described retarder and rotate the stop gear that hoists; Described lifting motor is the variable-frequency motor of tep reel formula drg.

5. the flexible monkey that connects of novel low clearance according to claim 1, it is characterized in that: described end carriage comprises end carriage body and chassis, two road wheels are equipped with in this chassis bottom, this chassis is sleeved on end carriage body one end, and hinged with the end carriage body by bearing pin, the other end of described end carriage body is equipped with another road wheel.

6. the flexible monkey that connects of novel low clearance according to claim 1, it is characterized in that: three road wheels on the described transmission end carriage are the flat base rim wheel; The road wheel at the two ends of described non-transmision end beam is a belt wheel edge wheel, and middle road wheel is the flat base rim wheel.

7. the flexible monkey that connects of novel low clearance according to claim 1 is characterized in that: described " three-in-one " driver train, and its drive motor is the variable-frequency motor of tep reel formula drg, its reducer output shaft is a hollow shaft.

8. the flexible monkey that connects of novel low clearance according to claim 1, it is characterized in that: described reel supported end is the minor axis form, connects with spool body by tilting bearing.

9. the flexible monkey that connects of novel low clearance according to claim 1, it is characterized in that: described weighting apparatus comprises bolster and bearing sensor that level is installed in crossbeam top.

10. the flexible monkey that connects of novel low clearance according to claim 1, it is characterized in that: described steel rope fixed end comprises steel rope wedge joint and cover of wedge link plate; The steel rope wedge joint is connected cover of wedge link plate below, and the cover of wedge link plate is installed on the bolster on crossbeam top; Described steel rope for left and right two steel ropes that revolve, is installed in respectively in the right side of reel, the left-handed grooving.

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