TWM541468U - Crane device and crane component - Google Patents

Description

Crane device and crane assembly

The present invention relates to a crane device and a crane assembly, and more particularly to a crane assembly for transporting metal grinding debris inside a factory.

In steel factories such as grinders or other places where frequent machining and cutting of metal are required, a large amount of metal grinding debris is generated during the cutting process, so how to safely and quickly move the metal grinding debris from the temporary storage area in the factory to the special storage. The region has become a factor that affects overall manufacturing efficiency.

Please refer to Figure 6. In the current factory, if there is a tool such as a work roll grinder or a back roll grinder, the floor of the temporary metal grinding scrap (not shown) is usually located on the ground floor. The current practice is when When cleaning metal scraps, the metal scraps are first filtered through the filter system of the grinder and other equipment and accumulated in the temporary storage on the ground floor. The operator then moves a grinding bucket 91 to the reception on the ground floor. At the location of the metal grinding debris, a patio 900 leading to the first floor is disposed directly above the positioning; at this time, the magnetic drum switch of the temporary storage is opened, and the metal grinding debris flows into the grinding bucket 91 along the switch. At this time, the operator on the first floor calls the crane in the factory to move up and down to the top of the patio, and then the crane hook 92 on it is suspended from above; when the operator on the first floor receives the day After the hook hook 92, a plurality of steel cables 93 are first hung on the crane hook 92, and the steel cables 93 are hung along the patio 900 to the periphery of the grinding bucket 91 below the ground floor. The operator separately fixes the other end of the cable 93 At the end of wear debris bucket 91 and confirmed a good lock, the operator side of the first floor and hand The steel cable 93 is controlled to command the crane hook 92 to rise. At this time, the operator on the ground floor holds the debris bucket 91 while the grinding bucket 91 is slowly rising to prevent it from shaking to hit nearby people or buildings.

After the crane hook 92 hangs the grinding bucket 91 on the first floor, the grinding bucket 91 is slightly improved first, and the operator on the first floor places a trolley (not shown) under the suspended abrasive bucket 91. And the grinding bucket 91 is slowly lowered onto the trolley, then the steel cable 93 on the crane hook 92 is removed and the other operator is called to lift the crane hook 92 to recover, and the operator will be filled with metal grinding debris. The grinding bucket 91 is pushed to other special storage areas of the factory; the finished grinding bucket 91 is dumped, and then reversed to the aforementioned step of hanging from the ground floor to the first floor, and placed back to the next floor, so that the metal can be cleaned next time. Easy to use when grinding debris.

However, the operation of such a hanging chip bucket has the following disadvantages.

First, since the crane hook 92 of the hanging debris bucket 91 is suspended above the interior of the factory, the steel cable 93 hanging the abrasive bucket 91 is also transported by the hanging method to transport the abrasive bucket 91. In the section where the steel cable 93 is suspended, it is easy to cause up and down and left and right shaking; to avoid this situation, the operators standing on the first floor and the ground floor respectively need to hold the wire 93 or wear debris. On the barrel 91, avoiding its shaking, but whether it is the cable 93 or the grinding bucket 91, there is great force in the lifting process, so the operator is likely to have the hand clamped by the implement. The risk of injury.

Secondly, as the first point, when the crane hook 92 lifts the grinding debris bucket 91, because of the extremely easy swaying relationship, the rising middle patio 900 and the narrow steel cable 93 are long, as long as the operator is not paying attention, It is easy to cause the wear debris barrel 91 to collide with other equipment or the patio 900 itself due to slight rotation or shaking during the ascent, which causes damage to the equipment and increases the cost of factory maintenance.

In view of the shortcomings and deficiencies of the prior art, the present invention provides a crane device that uses a crane to replace a conventional crane to achieve a safe and convenient operation flow.

For the purpose of the above-mentioned creation, the technical means adopted by the present invention is a crane device, which comprises an upper platform, which has a passage opening through the upper and lower sides; a crane box is arranged on the upper platform, and the crane box is a box body. And an upper transport opening and an accommodating space, the upper transport opening is disposed on a side of the crane box, the accommodating space is located inside the crane box, and is connected to the passage opening of the upper platform; a hanging device, the hanging device is disposed at the top of the crane box and extends downwardly to the accommodating space, the hanging device comprises a power device, a hanging lanyard and a hanging hook, one end of the hanging lanyard Connecting the power device, the other end of the hanging rope is connected to the hanging hook, and the power device moves the hanging hook up and down through the hanging rope and selectively passes downward through the passage opening of the upper platform; a guiding portion is disposed at a bottom of the upper platform and protrudes upwardly from the upper platform, and includes a plurality of guide rails fixed to the bottom of the upper platform, and the top of the rails The guide rails are disposed on the upper platform and are disposed around and spaced apart from each other. The guide rails surround a passage through which the passage communicates with the accommodation space. A guiding device is disposed on the guide platform. Between the rails, and including a guiding slope, the guiding slope extends obliquely downward toward the passage.

For the purpose of the above-mentioned creation, another technical means adopted by the present invention is a crane assembly, which comprises: a crane device as described above; a grinding bucket, the grinding bucket is connected to the hanging hook, and Optionally moving up and down the accommodating space and the channel, and selectively abutting against the guiding slope of the guiding device.

The advantage of this creation is that a new crane box is added and the hanging structure is arranged inside it to make the two cooperate to replace the conventional crane. The advantages are as follows:

First, the combination of the crane box and the hanging structure replaces the function of the crane. In other words, the grinding machine is equivalent to the exclusive hanging system, in addition to reducing the usage rate of the factory crane, and also increasing the creation of the creation. Convenience, because the operator does not have to call the crane in the factory before moving to the top of the patio.

Second, the original patio was only a hole on the first floor, and there was no protective measures around it. This creation uses a crane box to enclose a patio with no guardrail around it to avoid accidental fall of the operator.

Third, due to the arrangement of the guiding device and the guide rail, the operator does not have to hold the hand beside the grinding debris bucket, and the grinding bucket can be correctly moved to the required position through the guiding rail and the guiding inclined surface of the guiding device. The No-Touch function is achieved during the operation, that is, the operator does not have to be close to the implement during the hanging process, which saves labor costs and reduces all possible dangers due to the proximity of the implements.

Further, in the foregoing crane device, the guiding device further includes a guiding beam and a plurality of guiding members, the guiding beam is laterally fixed between the two guiding rails, and the guiding members are arranged in parallel and at intervals And the guiding member comprises a beveled portion and an upright portion, the top end of the beveled portion is connected to the guiding beam and extends obliquely downward toward the channel, and the oblique portion The corner portion collectively forms the guiding slope, and the top end of the upright portion is connected to the bottom end of the angled portion, and the upright portion extends downwardly upright.

Further, in the foregoing crane device, the number of the guide rails is four, and is arranged in a rectangular manner, and is formed with four openings, and the four openings include a wear debris opening and a lower transport opening.

Further, in the foregoing crane device, the upper platform further includes a guard rail disposed around the upper platform and surrounding the crane box from the outside; a gate pivotally disposed on the upper transport opening a side edge and pivotable relative to the upper transport opening; the gate further A switch sensor is included that can be used to sense the opening or closing of the gate, the switch sensor being electrically coupled to the power unit.

Further, in the foregoing crane device, the crane box is detachably disposed on the upper platform.

Further, in the foregoing crane device, the crane box further includes a plurality of lifting lugs, and the lifting lugs are disposed at the top of the crane box.

Further, in the foregoing crane device, the crane box further includes a warning light and an illumination lamp, and the warning light and the illumination lamp are disposed at a top end of the crane box.

Further, the aforementioned crane device, wherein the power device is a fixed hoist.

Further, in the foregoing crane assembly, the wear bucket comprises a hanging beam and a hanging hole, the hanging beam is disposed on a top surface of the grinding bucket, and the hanging hole is disposed on the hanging beam And selectively hook the hook.

11‧‧‧Upper platform

111‧‧‧Channel opening

20‧‧‧Trolley box

21‧‧‧Transportation opening

22‧‧‧ accommodating space

23‧‧‧Locks

24‧‧‧ lifting ears

25‧‧‧ warning lights

30‧‧‧ hanging device

31‧‧‧Powerplant

32‧‧‧ hanging rope

33‧‧‧ hanging hook

40‧‧‧Guide

41‧‧‧rails

42‧‧‧Guide

421‧‧‧ Guided slope

422‧‧‧Guide beams

423‧‧‧Guide

424‧‧‧Bevel

425‧‧‧Upright Department

43‧‧‧ passage

44‧‧‧Drying opening

45‧‧‧Transportation opening

50‧‧‧Dry bucket

51‧‧‧ hanging beams

52‧‧‧ hanging holes

900‧‧‧ patio

91‧‧‧Drying bucket

92‧‧‧Day car hook

93‧‧‧Steel cable

11A‧‧‧Upper platform

20A‧‧‧Trolley box

21A‧‧‧Transportation opening

26A‧‧‧Guardrail

27A‧‧‧ gate

31A‧‧‧Powerplant

Figure 1 is a three-dimensional appearance of the creation.

Figure 2 is an action diagram (1) of the creation.

Figure 3 is the action diagram of this creation (2).

Figure 4 is a perspective view of the creation of the grinding bucket.

Figure 5 is a top plan view of another embodiment of the present invention.

Figure 6 is a prior art diagram.

The technical means adopted by the present invention for achieving the intended purpose of creation are further explained below in conjunction with the drawings and the preferred embodiment of the present invention.

Referring to FIG. 1 and FIG. 2, the crane group of the present invention comprises a crane device and a grinding bucket 50, and the crane device comprises an upper platform 11, a crane box 20, a hanging device 30 and a guiding device. Department 40.

In the main embodiment, the upper platform 11 has a first floor space above it, and a basement space located in the basement below, and the first floor space and the basement space have a height of about one floor; the upper platform 11 includes a passage opening 111. The passage opening 111 connects the upper platform 11 with the basement space. In the main embodiment, the passage opening 111 is a rectangular opening, but is not limited thereto.

The crane box 20 is disposed on the upper platform 11. In the main embodiment, the crane box 20 is a support frame, and is provided with an upper transport opening 21 and an accommodating space 22; the upper transport opening 21 is disposed on the crane box 20 The side surface is provided as a user and a cart. The accommodating space 22 is disposed inside the crane box 20 and communicates with the passage opening 111 of the upper platform 11, in other words, the upper transport opening 21, the accommodating space 22, and the passage. The opening 111 and the basement space are also in communication with each other.

Referring to FIG. 1 , in the main embodiment, the crane box 20 is detachably disposed on the upper platform 11 , and specifically, the crane box 20 may further include a plurality of locking pieces 23 and a plurality of lifting ears 24 , the crane The box 20 is locked to the upper platform 11 through the locking pieces 23, but not limited thereto, the crane box 20 and the upper platform 11 can also be detachably disposed by other means; the lifting ears 24 are disposed in the crane box. 20 at the top of the four corners.

In order to improve the safety of the plant operator, a warning light 25 and an illumination lamp are additionally installed on the crane; the warning light 25 is disposed on the top of the crane box 20, and the light warning can be used in time when the creation operation is performed. The operator of the work; the illuminator is disposed on the top surface of the interior of the crane box 20 to provide an operator with better visibility in the crane box 20.

Referring to FIG. 1 to FIG. 3 , the hanging device 30 is disposed on the top of the crane box 20 and includes a power device 31 , a hanging rope 32 and a hanging hook 33 . The power device 31 is disposed on the crane box 20 . The top and the sling 32 and the hanging hook 33 are penetrated downward into the accommodating space 22, and one end of the sling 32 is connected to the power unit 31, and can be wound into the power unit 31, and the other end is The hanging hooks 33 are connected; in the main embodiment, the power unit 31 moves the hanging ropes 32 and the hanging hooks 33 up and down and selectively passes downward through the passage openings 111 of the upper platform 11.

In the main embodiment, the power unit 31 is a fixed hoist, but not limited thereto, and only needs to be able to achieve the function of winding and releasing the lanyard 32.

Since the components of the suspension device 30 are relatively easily damaged components in the present creation, when the components are damaged, the maintenanceman must erect an auxiliary ladder and climb to the top of the crane box 20 through the auxiliary ladder for maintenance. However, as in the foregoing crane box 20, the internal accommodating space 22 is in communication with the lower passage opening 111, and the processing plant is intended to have a complicated environment, and it is likely that many other instruments are simultaneously operated at the same time, so that the original There is a risk in performing maintenance, so when the components such as the power unit 31 are damaged or damaged, since the crane box 20 is detachably disposed on the upper platform 11, the user can first fix the locks of the crane box 20. After the piece 23 is removed, the crane inside the factory is called, and the lifting lug 24 at the top of the crane box 20 is hooked by a plurality of chains, and the entire crane box 20 can be hoisted together with the hanging device 30 to a safer area before being repaired. .

The guiding portion 40 is disposed at the bottom of the upper platform 11 and protrudes upwardly from the upper platform 11 while connecting the basement space below, and includes a plurality of guide rails 41 and a guiding device 42.

The guide rails 41 are erectly fixed to the bottom of the upper platform 11, and the tops of the guide rails 41 extend upwardly from the upper platform 11, in other words, they are disposed upright in the basement space. In the main embodiment, The guide rails 41 are spaced apart from each other, and the guide rails 41 form a passage 43 which is connected to the passage opening 111 of the upper platform 11 and communicates with the accommodation space 22.

In the main embodiment, the number of the guide rails 41 is four, and is arranged in a rectangular manner. The clips are formed with four openings, and the four openings include a wear debris opening 44 and a lower transport opening 45, but To this end, the four guide rails 41 do not have to have all the openings therebetween, but can be connected to each other to form a wall surface, and only the wear debris opening 44 and the lower transport opening 45 are retained.

In the main embodiment, the two openings 44, 45 are disposed on opposite sides, but not limited thereto, the positions of the wear debris opening 44 and the lower transport opening 45 may be adjusted according to the working field; When used in the creation, the outer side of the wear debris opening 44 is aligned with a wear debris temporary storage device, so that when the operator uses the creation, the wear debris temporary storage device can be aligned, and the switch is opened to pass the grinding debris through the grinding machine. The chip opening 44 flows into the creation; in the main embodiment, the lower transport opening 45 is disposed directly opposite the wear debris opening 44, and the lower transport opening 45 is intended to be malfunctioning or any operator is required When viewed, the lower transport opening 45 allows the operator in the basement space to view or perform the necessary operations.

The guiding device 42 is disposed between the guide rails 41. More precisely, the guiding device 42 is disposed between the two guiding rails 41. In the main embodiment, the guiding device 42 is disposed under the clamping. Between the two guide rails 41 of the transport opening 45, but not limited thereto, the guiding device 42 can also be disposed between the other two guide rails 41.

The guiding device 42 includes a guiding inclined surface 421 extending obliquely downward toward the direction of the channel 43. In the main embodiment, the guiding device 42 further includes a guiding beam 422 and a plurality of guiding members 423. The guide beam 422 is laterally fixed between the two guide rails 41, and the guide members 423 are disposed on the guide beam 422 in parallel and at intervals, and each of the guide members 423 further includes a beveled portion 424. And the upright portion 425, the top end of the beveled portion 424 is connected to the guiding beam 422 and extends obliquely downward toward the direction of the channel 43, and the beveled portions 424 together form the guiding inclined surface 421, the upright portion 425 The top end is connected to the bottom end of the beveled portion 424, and the bottom end of the upright portion 425 is erected downwardly In the main embodiment, the guiding inclined surface 421 is formed by the inclined portion 424 of the guiding member 423. However, the user can directly form the guiding inclined surface 421 in a single body. .

Referring to FIG. 4, the grinding bucket 50 is connected to the hanging hook 33 of the hanging device 30, and is selectively moved up and down between the accommodating space 22 and the passage 43 and selectively downwardly The slanting surface 421 of the guiding device 42 is further disposed, and the squeezing beam 50 further includes a hanging beam 51 and a hanging hole 52. The hanging beam 51 is disposed on the top surface of the grinding bucket 50, and the hanging hole 52 It is disposed on the hanging beam 51 and selectively hooked with the hanging hook 33. In the main embodiment, the grinding bucket 50 is passed through the hanging hole 52 and the hanging hook 33 disposed on the hanging beam 51. The connection is made, but not limited thereto, and the structure of the grinding bucket 50 can only be connected to the hanging hook 33.

Prior to use of the primary embodiment, the initial position of the abrasive bucket 50 is always in the position of the basement space containing the abrasive debris; generally, when the abrasive debris is continuously loaded by the abrasive opening 44 into the abrasive bucket 50, When it is filled with the grinding bucket 50 and has to be hung, the operator then suspends it to the upper platform 11 by using the hanging device 30 and moves the grinding bucket 50 to the area where the grinding debris is specially treated by the trolley. Detailed use and operation methods.

Referring to FIG. 2 and FIG. 3, the step of lifting the lifting is as follows. First, the operator opens the switch of the grinding debris temporary storage device (not shown) provided at the grinding debris opening 44 to pass the grinding debris through the grinding machine. The chip opening 44 flows into the grinding bucket 50 of the present creation. When the chip bucket 50 is filled, the operator closes the switch of the device, and then the power device 31 of the hanging device 30 is opened to make the hanging rope 32 and the hanging hook 33 are suspended from above through the passage opening 111 into the passage 43 of the basement space, above the grinding bucket 50, and the operator uses the grinding bucket 50 filled with the grinding debris to utilize the hanging hole 52 thereon. Hanging on the hanging hook 33, it can be connected with the hanging hole 52 on the grinding bucket 50; after fixing the grinding bucket 50, it is slowly lifted and raised above the upper platform 11.

At this time, since the passages 43 are formed by being surrounded by the guide rails 41, the guide rails 41 limit the range of the grinding bucket 50 in the horizontal direction, and the operator does not have to worry about the wear debris bucket 50. The operator hits the power unit 31 to cause the wear bucket 50 hanging from the hanging hook 33 to slowly pass through the passage 43 and the passage opening 111 in order from the basement space and rise to the upper position because the operator operates the power unit 31. After the inside of the accommodating space 22 at the platform 11, the grinding bucket 50 is slightly raised, the aforementioned trolley is pushed directly under the grinding bucket 50, and the grinding bucket 50 is slowly lowered to the trolley, the operator Then, the hanging hook 33 is separated from the hanging hole 52, and the hanging rope 32 is taken back into the power device 31 together with the hanging hook 33, and the grinding waste bucket 50 filled with the grinding debris is pushed by the trolley to the factory for special treatment. Area of wear debris.

After the operator pushes the debris bucket 50 which has been cleaned of the grinding debris back, the workpiece bucket 50 is then hoisted back to the initial position by the step opposite to the aforementioned hanging the abrasive bucket 50 to the upper platform 11, ie: operation The operator operates the power unit 31 to slowly lower the hanging rope 32 and the hanging hook 33 thereon, and then fixes the hanging hook 33 with the hanging hole 52 on the grinding bucket 50 and lifts the grinding bucket 50. The chip bucket 50 can slowly pass through the accommodating space 22 and descend into the channel 43 through the channel opening 111; when the chip bucket 50 is slowly lowered to the basement space, the side of the chip bucket 50 close to the lower transport opening 45 will be abutted. Relying to the beveled portion 424 of the guide members 423, thus being urged against the opposite wear debris opening 44, and the wear debris bucket 50 continues downward, the upright portion 425 will continue to secure the wear debris bucket 50 to In this position, and finally the bottom of the grinding bucket 50 will be parallel with the bottom of the upright portion 425, and in the main embodiment, the grinding bucket 50 will abut against the upright portion 425 and relative in the horizontal direction. Between the two guide rails 41 on the side, but not limited thereto; because of the positioning of the guide members 423, the operator does not need to adjust The position of the grinding bucket 50 can also be determined to fall to the correct position after descending to the basement space, i.e., returning to the initial position of the abrasive debris previously described.

Through the setting of the crane box 20, the creation can have a special hanging structure when transporting the grinding debris, without using the overhead crane in the factory, and at the same time, it is easy to sway because the steel cable 93 is to be hooked. The structure is replaced by the created hanging device 30, which also makes the hanging process more stable and less swaying; in addition, with the arrangement of the guide rails 41 and the guiding members 423, the creation is operated. The operator can be automatically monitored to the correct position without the need for an operator to monitor the side, so that the use rate of the personnel is effectively reduced, and the accident that the operator is too close to the creation may be avoided.

Referring to FIG. 5, the following is another embodiment of the present creation. Another embodiment of the present creation is substantially the same as the main embodiment, but in another embodiment, the crane box 20A located on the upper platform 11A further includes There is a guard rail 26A and a gate 27A. The guard rail 26A is disposed around the upper platform 11A and surrounds the crane box 20A from the outside. The gate 27A is pivoted on one side of the crane box 20A provided with the upper transport opening 21A, and can be transported relatively. The opening 21A pivots, and the shutter 27A further includes a switch sensor disposed on the gate 27A and electrically connected to the power unit 31A.

The purpose of this other embodiment is to make the creation more secure in use. In addition to the addition of the guardrail 26A to remind the surrounding operators to pay attention to safety when passing around the creation, the switch sensor disposed on the gate 27A is The power unit 31A is electrically connected. When the gate 27A is opened, the power unit 31A cannot operate. The operator must confirm that all the processes of the creation are normal, and then close the gate 27A, and the power unit 31A can operate normally.

The above description is only a preferred embodiment of the present invention, and does not impose any form limitation on the present invention. Although the present invention has been disclosed above in the preferred embodiment, it is not intended to limit the present creation, and has any technical field. Generally, those skilled in the art can make some modifications or modifications to the equivalent main embodiments by using the above-disclosed technical contents without departing from the technical scope of the present invention. Any simple modifications, equivalent changes and modifications made to the above main embodiments in accordance with the technical essence of the present invention are still within the scope of the present technical solution.

11‧‧‧Upper platform

111‧‧‧Channel opening

20‧‧‧Trolley box

21‧‧‧Transportation opening

22‧‧‧ accommodating space

23‧‧‧Locks

24‧‧‧ lifting ears

25‧‧‧ warning lights

30‧‧‧ hanging device

31‧‧‧Powerplant

32‧‧‧ hanging rope

40‧‧‧Guide

41‧‧‧rails

42‧‧‧Guide

422‧‧‧Guide beams

423‧‧‧Guide

424‧‧‧Bevel

425‧‧‧Upright Department

43‧‧‧ passage

50‧‧‧Dry bucket

Claims (10)

The utility model relates to a crane device, which comprises an upper platform, which has a passage opening through a top and a bottom; a crane box is arranged on the upper platform, the crane box is a box body, and an upper transport opening and an accommodating space are arranged. a transport opening is disposed on a side of the crane box, the accommodating space is located inside the crane box, and communicates with the passage opening of the upper platform; a hanging device is disposed at the top of the crane box And extending downwardly to the accommodating space, the hanging device comprises a power device, a hanging lanyard and a hanging hook, one end of the hanging lanyard is connected to the power device, and the other end of the hanging lanyard and the hanging Attached by the hook, the power device moves the hanging hook up and down through the hanging rope and selectively passes downward through the passage opening of the upper platform; a guiding portion is disposed at the bottom of the upper platform and runs upward Projecting on the upper platform, and including a plurality of rails, the rails are fixed upright on the bottom of the upper platform, and the tops of the rails protrude upwardly from the upper platform, and are arranged around and spaced apart from each other. The guide rail surrounds a passage through which the passage communicates with the accommodating space; a guiding device disposed between the guide rails and including a guiding slope, the guiding slope facing the The passage ground extends obliquely downward. The crane device of claim 1, wherein the guiding device further comprises a guiding beam and a plurality of guiding members, the guiding beam is laterally fixed between the two guiding rails, and the guiding members are parallel and spaced Provided on the guiding beam, and each of the guiding members comprises a beveled portion and an upright portion, the top end of the beveled portion is connected to the guiding beam and extends obliquely downward toward the channel, and the same The beveled portion collectively forms the guiding bevel, the top end of the upright portion is connected to the bottom end of the beveled portion, and the bottom end of the upright portion extends downwardly upright. The crane device of claim 1, wherein the number of the guide rails is four, and is disposed in a rectangular manner, and is formed with four openings, and the four openings include a wear debris opening and a lower transport opening. The crane device according to any one of claims 1 to 3, wherein the upper platform further comprises a guard rail disposed around the upper platform and surrounding the crane box from the outside; a gate, the gate is pivoted One side of the upper transport opening is pivotable relative to the upper transport opening; the gate further includes a switch sensor for sensing the opening or closing of the gate, the switch sensor being electrically coupled to the power unit. A crane apparatus according to any one of claims 1 to 3, wherein the crane box is detachably disposed on the upper platform. The crane apparatus of claim 5, wherein the crane box further comprises a plurality of lifting ears disposed on a top of the crane box. The crane device of any one of claims 1 to 3, wherein the crane car further comprises a warning light and an illumination lamp, the warning light and the illumination lamp being disposed at a top end of the crane car. A crane apparatus according to any one of claims 1 to 3, wherein the power unit is a stationary hoist. A crane assembly, comprising the crane device according to any one of claims 1 to 8, a grinding bucket, the grinding bucket being connected to the hanging hook, and selectively moving up and down in the receiving The space and the passageway are selectively abutted against the guiding ramp of the guiding device. The crane assembly of claim 9, wherein the grinding bucket comprises a hanging beam and a hanging hole, the hanging beam is disposed on a top surface of the grinding bucket, and the hanging hole is disposed on the hanging beam On, and selectively hook the hook.