CN213537065U - Portable crane - Google Patents

Portable crane Download PDF

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Publication number
CN213537065U
CN213537065U CN202022441240.9U CN202022441240U CN213537065U CN 213537065 U CN213537065 U CN 213537065U CN 202022441240 U CN202022441240 U CN 202022441240U CN 213537065 U CN213537065 U CN 213537065U
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China
Prior art keywords
connecting rod
base
davit
portable crane
track
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CN202022441240.9U
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Chinese (zh)
Inventor
孙海涛
刘静宇
杨文广
李赵华
李关平
贾雄雄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CGN SOLAR ENERGY DEVELOPMENT CO LTD
Cgn Ulanqab Wind Power Co ltd
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CGN SOLAR ENERGY DEVELOPMENT CO LTD
Cgn Ulanqab Wind Power Co ltd
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Application filed by CGN SOLAR ENERGY DEVELOPMENT CO LTD, Cgn Ulanqab Wind Power Co ltd filed Critical CGN SOLAR ENERGY DEVELOPMENT CO LTD
Priority to CN202022441240.9U priority Critical patent/CN213537065U/en
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Abstract

The utility model relates to a portable crane, it includes two tracks, can gliding base on the track, install be used for on the base with the base location on the track positioner, rotate the davit of installing on the base and install hoist mechanism on the davit, the one end slope of davit sets up, hoist mechanism installs on the other end of davit, and hoist mechanism's output overlap joint is on the davit slope is one end up. This application has the effect that reduces the hydraulic motor and changes the degree of difficulty, improve the change efficiency.

Description

Portable crane
Technical Field
The application relates to the field of portable cranes, in particular to a portable crane.
Background
At present, wind power generation utilizes abundant wind energy to convert kinetic energy of wind into electric energy. The wind power generation project is mainly carried out by using a fan outdoors, the fan runs outdoors for a long time, and a hydraulic motor of the fan is easy to break down under the influence of the outdoor natural environment, so that the hydraulic motor of the fan needs to be maintained and replaced.
The existing fan hydraulic motor is installed in a cabin of a fan, a small foundation pit can be dug on the ground inside the cabin, in addition, the weight of a hydraulic motor body in use reaches 250kg, the weight is relatively large, and when the hydraulic motor is replaced and maintained, a worker cannot directly carry the hydraulic motor in the cabin.
In view of the above-mentioned related technologies, the inventor thinks that there are defects that the hydraulic motor is limited by the working space inside the nacelle when the hydraulic motor is replaced and maintained in the nacelle, and the replacement difficulty is large and the replacement efficiency is low.
SUMMERY OF THE UTILITY MODEL
In order to improve the problem that it is inconvenient to change hydraulic motor in the cabin, the application provides a portable crane.
The application provides a portable crane adopts following technical scheme:
the utility model provides a portable crane, includes two tracks, can gliding base on the track, install be used for on the base with the base location on the track positioner, rotate the davit of installing on the base and install hoist mechanism on the davit, the one end slope of davit sets up, hoist mechanism installs on the other end of davit, and hoist mechanism's output overlap joint is on the davit slope one end up.
Through adopting above-mentioned technical scheme, hoist overall structure is simple, and is small, can assemble it fast before the use, the hoist body can be used in a flexible way in the limited working space in cabin, utilize lever principle through hoisting mechanism, the staff of being convenient for relies on the manual operation hoist body to hoist the relatively great hydraulic motor of weight, shift, effectively solved the problem that the cabin in working space is not enough and lead to unable transport hydraulic motor, thereby reach and reduce the change hydraulic motor degree of difficulty, improve the purpose of changing efficiency, can also reduce the change risk, promote operational environment's factor of safety.
Optionally, a groove is formed in the length direction of the rail, two groups of casters with a self-locking function are mounted on the base, and each group of casters can be located in one groove.
Through adopting above-mentioned technical scheme, the truckle slides in the recess and is convenient for make the hoist body remove in the limited cabin in space, when hoist and mount during the work in the hoist carries out the phase, the truckle accomplishes the auto-lock after for the hoist body relatively stable sets up on the track, and the staff of being convenient for stably changes hydraulic motor's work.
Optionally, the base is a frame structure.
Through adopting above-mentioned technical scheme, frame construction's base can also effectively alleviate the holistic weight of hoist when providing stable installation basis for the hoist body to be convenient for the hoist body uses in a flexible way in the cabin.
Optionally, the positioning device includes that the installation base is last and both ends are located the inside and outside guide post of frame construction respectively, wear to establish on frame construction and both ends are located the drive screw rod of the inside and outside both sides of frame construction and respectively threaded connection two splint at drive screw rod both ends, drive screw rod has seted up the screw thread of turning to the difference on two sections near both ends, and drive screw rod can only rotate on frame construction, splint wear to establish on the guide post, and two splint can press from both sides on the track.
Through adopting above-mentioned technical scheme, after rotating drive screw, two splint restriction effect when guide post and drive screw down, two splint can be close to each other or keep away from on two sections opposite screw threads soon, and when two splint were close to the back each other, two splint centre gripping are on orbital both sides simultaneously, positioner simple structure, convenient operation, the cooperation is with the auto-lock function of truckle, further stable the setting on the track with the hoist body to further promote operational environment's factor of safety.
Optionally, a jack is formed in the rail, a plug column capable of being matched with the jack is mounted on the clamping plate, and the plug column is matched with the jack in a plug-pull mode.
Through adopting above-mentioned technical scheme, after splint centre gripping is on the track to insert the grafting post and establish on the track back, can further promote crane body stable positioning on the track.
Optionally, a horizontal fixing plate is mounted on the base, and a vertical fixing shaft is mounted on the fixing plate;
the davit is in including can the cover establish the installation section of thick bamboo on the fixed axle, one end rigid coupling on the installation section of thick bamboo and the ascending oblique connecting rod of other end slope and one end rigid coupling deviate from at the installation section of thick bamboo the horizontal connecting rod of oblique connecting rod one side, hoisting apparatus installs on the horizontal connecting rod.
Through adopting above-mentioned technical scheme, the davit can be convenient for rotate the davit through the installation section of thick bamboo rotation on the fixed axle to through staff's manual operation, can hang up safely, reliably hydraulic motor and change, davit simple structure, stability.
Optionally, a bearing is installed in the installation cylinder, and the bearing is sleeved on the fixed shaft.
Through adopting above-mentioned technical scheme, further promote davit pivoted smoothness nature through the bearing, reduce manpower output, reduce staff's intensity of labour.
Optionally, the hoisting device adopts a winch, the winch comprises a motor, a brake device, a steel wire rope and a lifting hook, the motor is installed on the horizontal connecting rod, the rotating shaft is horizontally arranged, the brake device is installed on the horizontal connecting rod and used for braking the electric rotating shaft, one end of the steel wire rope is fixedly connected to the rotating shaft, the lifting hook is installed at the other end of the steel wire rope, and one end of the lifting hook is connected to the upper end of the inclined connecting rod in a lap joint mode.
Through adopting above-mentioned technical scheme, hoist engine simple structure, powerful, and the jack-up is stable, through brake equipment to the motor shaft brake back simultaneously, can hang hydraulic motor stably.
Optionally, the device further comprises a connecting rod, two ends of which are respectively and fixedly connected to the inclined connecting rod and the horizontal connecting rod.
By adopting the technical scheme, the structural strength of the suspension arm is enhanced, and the use reliability of the suspension arm during working is enhanced.
Optionally, the device further comprises reinforcing ribs, two ends of each reinforcing rib are connected between the inclined connecting rod and the connecting rod, and the two ends of each reinforcing rib are connected between the horizontal connecting rod and the connecting rod.
Through adopting above-mentioned technical scheme, further strengthen the structural strength of davit.
In summary, the present application includes at least one of the following beneficial technical effects:
1. by arranging the rail, the base, the positioning device, the suspension arm and the hoisting mechanism, the whole structure is simple, the size is small, the lifting device can be quickly assembled, the lifting device can be flexibly used in a limited working space in a cabin, and a hydraulic motor with relatively large weight can be conveniently hoisted and transferred by a worker, so that the aims of reducing the difficulty of replacing the hydraulic motor and improving the replacement efficiency are fulfilled, the replacement risk can be reduced, and the safety coefficient of a working environment is improved;
2. the base is of a frame structure, so that the base can provide a stable installation foundation for the crane body and can effectively reduce the overall weight of the crane, and the crane body can be flexibly used in a cabin;
3. through setting up positioner, after two splint were close to each other, two splint centre gripping were on orbital both sides simultaneously, positioner simple structure, convenient operation further stably set up the hoist body on the track to further promote operational environment's factor of safety.
Drawings
FIG. 1 is a schematic view of a portable crane;
FIG. 2 is a schematic view of the mating structure of the rail and the base;
FIG. 3 is an enlarged partial schematic view of portion A of FIG. 2;
FIG. 4 is a schematic view of the mating structure of the mounting post and the boom.
Description of reference numerals: 1. a track; 11. fixing the rod; 2. a base; 21. installing a frame; 22. mounting a rod; 23. a caster wheel; 3. a positioning device; 31. a guide post; 32. a drive screw; 321. a limiting ring; 33. a splint; 34. inserting the column; 35. a hand wheel; 4. mounting a column; 41. a fixing plate; 42. a fixed shaft; 43. a connecting arm; 5. a suspension arm; 51. mounting the cylinder; 52. a bearing; 53. an inclined connecting rod; 54. a horizontal connecting rod; 55. fixing grooves; 6. a reinforcing structure; 61. a connecting rod; 62. reinforcing ribs; 7. mounting grooves; 71. a fixed pulley; 8. a hoisting mechanism; 81. a motor; 82. a wire rope; 83. and (4) a lifting hook.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The utility model discloses a portable crane, refer to fig. 1, including laying two tracks 1 subaerial, the base 2 of the frame construction of slip setting on track 1, install on base 2 and can press from both sides the positioner 3 of pressing from both sides tight on track 1, vertical setting and lower extreme rigid coupling erection column 4 on base 2, rotate the davit 5 that sets up on erection column 4 and slope setting, install on davit 5 and be used for strengthening the additional strengthening 6 of davit 5 structural strength, install mounting groove 7 in davit 5 upper end, and install hoisting mechanism 8 at davit 5 lower extreme, hoisting mechanism 8 adopts the hoist engine, install fixed pulley 71 in the mounting groove 7, hoisting mechanism 8's output is wire rope 82, wire rope 82 overlap joint is on fixed pulley 71.
Portable crane overall structure is simple, before the use, lays track 1 subaerial in the cabin now, and track 1 can also be set up on the foundation ditch simultaneously, wholly provides stable installation basis to the hoist, and the hoist body slides on track 1 to make the hoist body can remove in a flexible way in the limited working space in the cabin. The hydraulic motor 81 with relatively large weight can be hoisted by using the winch, then the boom 5 is rotated by manpower by workers, the hydraulic motor 81 is placed on the ground of the cabin, the boom 5 can also be rotated randomly by manpower in the limited operating space of the cabin, the flexibility of the crane body used in the cabin is enhanced, the hydraulic motor 81 can be directly carried by the workers relatively, the replacement difficulty of the hydraulic motor 81 can be reduced, the labor intensity of the workers is reduced, and the replacement work efficiency is improved.
Referring to fig. 2, a plurality of fixing rods 11 are arranged between the two rails 1 at intervals along the length direction of the rails 1, the two rails 1 are stably connected by the plurality of fixing rods 11, and grooves with upward notches are formed in the rails 1 along the length direction of the rails.
Base 2 is including the installing frame 21 that is metal material and makes, installation pole 22 and truckle 23, installing frame 21 is the rectangular frame structure, the both ends of installation pole 22 are welded respectively on the inside relative both sides of installing frame 21, installation pole 22 is provided with two, and two 22 interval distributions of installation pole, truckle 23 is provided with four and per two sets up on the relative both sides of installing frame 21 lower surface, truckle 23 has self-locking function, and four truckles 23 can be located track 1's recess simultaneously. The caster 23 rotates in the groove, so that the whole crane can move conveniently.
With reference to fig. 2 and 3, the positioning devices 3 are provided in two sets, and the two sets of positioning devices 3 are respectively disposed on two opposite sides of the mounting frame 21 and can respectively clamp the two rails 1.
The positioning device 3 comprises a guide post 31 horizontally installed on the installation frame 21, a driving screw 32 horizontally penetrating through one side of the installation frame 21, two clamping plates 33 movably penetrating through the guide post 31 and in threaded connection with the driving screw 32, an inserting post 34 horizontally arranged and fixedly connected with one end of the inserting post on the clamping plate 33, and a hand wheel 35 installed on the driving screw 32 and located inside the installation frame 21. A plurality of openings for inserting the inserting columns 34 are formed at intervals on the side part of the track 1.
The two ends of the guide column 31 and the drive screw 32 are respectively located at the inner side and the outer side of the mounting frame 21, two limit rings 321 are fixedly arranged on the drive screw 32, the two limit rings 321 are respectively located at the inner side and the outer side of the mounting frame 21, and the drive screw 32 is limited to rotate. The peripheral surface of a section of the driving screw 32 located in the mounting frame 21 is a smooth circular surface, so that the driving screw 32 can rotate conveniently; two sections of the driving screw 32 located at two sides of the mounting frame 21 are respectively provided with threads with different rotation directions, and two clamping plates 33 are respectively connected to the two sections with different rotation directions. After the driving screw 32 is rotated, the two clamping plates 33 can be relatively close to or far away from each other, and after the two clamping plates 33 are relatively close to each other, the two clamping plates can be clamped on one rail 1. After the clamping plate 33 is clamped on the track 1, the inserting columns 34 which are inserted into the openings are matched, and the positioning stability of the crane body on the track 1 is further enhanced. The hand wheel 35 is rotated to facilitate operation of the positioning device 3, the hand wheel 35 is located inside the mounting frame 21, and therefore the situation that when a worker walks around the mounting frame 21, feet touch the hand wheel 35 to cause positioning failure of the positioning device 3 can be avoided.
Referring to fig. 1 and 4, the lower end of the mounting column 4 is fixedly connected to the mounting frame 21 and one mounting rod 22, the upper end of the mounting column 4 is fixedly connected to a horizontal fixing plate 41, a vertical fixing shaft 42 is arranged at the upper part of the fixing plate 41, and the lower end of the fixing shaft 42 is fixedly connected to the fixing plate 41. Still be connected with two linking arms 43 on the erection column 4, the upper end of two linking arms 43 is all connected on the spliced pole, and the lower extreme of linking arm 43 all connects on base 2 to strengthen erection column 4 again the installation stability on the base 2.
The suspension arm 5 comprises an installation cylinder 51, a bearing 52 which is arranged in the installation cylinder 51 and can be sleeved on the fixed shaft 42, an inclined connecting rod 53 of which the lower end is fixedly connected to the outer wall of the installation cylinder 51, a horizontal connecting rod 54 of which one end is fixedly connected to the installation cylinder 51 and deviates from one end of the inclined connecting rod 53, and two fixing grooves 55 of which the notches are arranged downwards, wherein the fixing grooves 55 are made of channel steel, the fixing grooves 55 are arranged on the upper portion of the inclined connecting rod 53, and the hoisting mechanism 8 is arranged on the two fixing grooves.
Referring to fig. 4, the reinforcing structure 6 includes a connecting rod 61 and a plurality of reinforcing ribs 62, both ends of which are connected between the inclined connecting rod 53 and the horizontal connecting rod 54, the inclined connecting rod 53, the horizontal connecting rod 54 and the connecting rod 61 form a triangular frame structure, the connecting rod 61 is made of channel steel, and notches at both ends of the channel steel are respectively buckled on the inclined connecting rod 53 and the horizontal connecting rod 54. The two ends of the plurality of reinforcing ribs 62 are fixedly connected to the diagonal links 53 and the connecting rods 61 and the horizontal links 54 and the connecting rods 61, respectively, thereby further enhancing the structural strength of the boom 5.
Referring to fig. 4, the hoisting mechanism 8 includes a hoisting mechanism installed on the two fixing slots 55, a motor 81 for driving the hoisting mechanism, a wire rope 82 having one end fixedly connected to the hoisting mechanism, and a hook 83 connected to the other end of the wire rope 82, a rotating shaft of the motor 81 is connected to the hoisting mechanism, a brake device for locking the rotating shaft of the motor 81 is installed on the motor 81, and a section of the wire rope 82 away from the hoisting mechanism is overlapped on the fixed pulley 71.
When the hydraulic motor 81 needs to be replaced, the lifting hook 83 is hooked on the hydraulic motor 81, then the motor 81 is used for controlling the hoisting mechanism to tighten the steel wire rope 82, and the brake device is controlled to lock the rotating shaft of the motor 81, so that the hydraulic motor 81 is hoisted.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. A portable crane, characterized in that: including two tracks (1), can gliding base (2), install on track (1) be used for on base (2) positioning device (3), rotation installation davit (5) on base (2) with base (2) location on track (1) and install hoist mechanism (8) on davit (5), the one end slope of davit (5) sets up, hoist mechanism (8) are installed on the other end of davit (5), and the output overlap joint of hoist mechanism (8) is on davit (5) slope one end up.
2. A portable crane according to claim 1, wherein: the track is characterized in that a groove is formed in the length direction of the track (1), two groups of caster wheels (23) with self-locking functions are mounted on the base (2), and each group of caster wheels (23) can be located in one groove.
3. A portable crane according to claim 1, wherein: the base (2) is of a frame structure.
4. A portable crane according to claim 3, wherein: positioner (3) are including installing guide post (31) inside and outside the frame construction on base (2) and both ends are located respectively, wear to establish drive screw (32) that frame construction was last and both ends are located the inside and outside both sides of frame construction and respectively threaded connection two splint (33) at drive screw (32) both ends, drive screw (32) are close to and have seted up the screw thread that turns to the difference soon on two sections at both ends, and drive screw (32) can only rotate on frame construction, splint (33) are worn to establish on guide post (31), and two splint (33) can press from both sides on track (1).
5. A portable crane according to claim 4, wherein: the rail (1) is provided with a jack, the clamping plate (33) is provided with a plug column (34) matched with the jack, and the plug column (34) is matched with the jack in a plug-pull manner.
6. A portable crane according to claim 1, wherein: a horizontal fixing plate (41) is arranged on the base (2), and a vertical fixing shaft (42) is arranged on the fixing plate (41);
davit (5) are in including can overlapping installation section of thick bamboo (51), one end rigid coupling on fixed axle (42) installation section of thick bamboo (51) are gone up and other end slope inclined connecting rod (53) up and one end rigid coupling deviate from in installation section of thick bamboo (51) horizontal connecting rod (54) of inclined connecting rod (53) one side, hoisting apparatus installs horizontal connecting rod (54) are last.
7. A portable crane according to claim 6, wherein: a bearing (52) is installed in the installation barrel (51), and the bearing (52) is sleeved on the fixed shaft (42).
8. A portable crane according to claim 6, wherein: hoisting apparatus is including installing motor (81) on horizontal connecting rod (54) and the pivot level sets up, installing brake equipment, one end rigid coupling that are used for carrying out the brake to the electricity pivot on horizontal connecting rod (54) and installing in epaxial wire rope (82) of rotation and lifting hook (83) of the wire rope (82) other end, wire rope (82) are installed the one end overlap joint of lifting hook (83) is in the upper end of oblique connecting rod (53).
9. A portable crane according to claim 6, wherein: and the connecting rod (61) is fixedly connected with the inclined connecting rod (53) and the horizontal connecting rod (54) at two ends respectively.
10. A portable crane according to claim 9, wherein: and reinforcing ribs (62) with two ends connected between the inclined connecting rod (53) and the connecting rod (61) and between the horizontal connecting rod (54) and the connecting rod (61).
CN202022441240.9U 2020-10-28 2020-10-28 Portable crane Active CN213537065U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022441240.9U CN213537065U (en) 2020-10-28 2020-10-28 Portable crane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022441240.9U CN213537065U (en) 2020-10-28 2020-10-28 Portable crane

Publications (1)

Publication Number Publication Date
CN213537065U true CN213537065U (en) 2021-06-25

Family

ID=76501440

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202022441240.9U Active CN213537065U (en) 2020-10-28 2020-10-28 Portable crane

Country Status (1)

Country Link
CN (1) CN213537065U (en)

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