CN212769554U

CN212769554U - Load lifting limiter detection device of tower crane

Info

Publication number: CN212769554U
Application number: CN202021755008.6U
Authority: CN
Inventors: 吴瑞涛; 李朋朋; 厉斌
Original assignee: Zhejiang Deyuan Testing Co ltd
Current assignee: Zhejiang Deyuan Testing Co ltd
Priority date: 2020-08-20
Filing date: 2020-08-20
Publication date: 2021-03-23
Anticipated expiration: 2030-08-20

Abstract

The utility model relates to a detection device for a load lifting limiter of a tower crane, which comprises a crossbeam and standard weighing sensors arranged at two ends of the crossbeam, wherein a supporting plate is arranged above the crossbeam, the lower surface of the supporting plate is fixedly connected with a plurality of guide sleeves, the bottom of each guide sleeve is slidably connected with a guide rod inserted in the guide sleeve along the vertical direction, a separation-preventing mechanism which ensures that one end of the guide rod is always positioned in the guide sleeve is arranged in the guide rod and the guide sleeve, the bottom end of the guide rod is fixedly connected with the crossbeam, the supporting plate is provided with a supporting plate fixing mechanism which fixes the position of the supporting plate, the crossbeam is provided with a crossbeam lifting hook connecting mechanism which ensures that the crossbeam can be connected with a lifting hook, the detection device has the advantages that the crossbeam is, the beam can stably move in the vertical direction, and then the standard bearing sensors at two ends of the beam can be abutted against the lower surface of the abutting plate in a fitting manner.

Description

Load lifting limiter detection device of tower crane

Technical Field

The utility model belongs to the technical field of load lifting limiter check out test set and specifically relates to a tower crane's load lifting limiter detection device is related to.

Background

The tower crane has a limit value for the weight of the hoisted weight, once the limit value exceeds the rated limit value, the tower crane is easy to cause danger and safety accidents during operation, therefore, a lifting capacity limiter is arranged on a steel rope connected with a lifting hook of the tower crane, when the lifting hook hoists the weight, the weight of the hoisted weight can be displayed through a weighing sensor, so as to ensure that the hoisted weight cannot be overloaded, the displayed numerical value of the lifting capacity limiter can deviate from the actual weight of the weight in the long-time use process, so that a worker cannot judge whether the weight exceeds the rated standard, therefore, the hoisting sensor without error is generally matched with the weight of the standard weight to be connected with the lifting hook, both the weighing sensor and the lifting hook can read, and whether the reading error of the weighing sensor and the lifting hook is within the allowable range or not can be checked.

The existing lifting capacity limiter equipment capable of rapidly and conveniently detecting is disclosed as CN204454309U, and comprises a balancing weight, a cross beam, a left arm, a right arm, a left buffer device, a right buffer device and a force measuring sensor; the balancing weight is arranged below the cross beam; the middle part of the upper end of the cross beam is provided with a hanging ring; the left arm and the right arm are respectively arranged at two ends of the cross beam; the left buffer device is arranged at one end of the left arm far away from the cross beam, and the right buffer device is arranged at one end of the right arm far away from the cross beam; the load cell is arranged between the left arm and the left buffer device and/or between the right arm and the right buffer device.

In view of the above-mentioned related art, the inventor thinks that there is a defect that when the lifting hook lifts the cross beam, the cross beam is prone to shaking, so that the cross beam is inclined, and the left buffer device and the right buffer device on both sides of the cross beam cannot be well abutted to the surface of the girder of the crane.

SUMMERY OF THE UTILITY MODEL

In order to comparatively stabilize the lifting beam, this application provides a load lifting limiter detection device of tower crane.

The application provides a load lifting limiter detection device of tower crane adopts following technical scheme:

the utility model provides a tower crane's load lifting limiter detection device, includes the crossbeam, locate the standard weighing sensor at crossbeam length direction both ends, the crossbeam top is equipped with to the board, support a plurality of guide sleeve of surface fixed connection under the board, each guide sleeve bottom all has along vertical direction sliding connection to peg graft in guide sleeve's guide bar, be equipped with among guide bar and the guide sleeve and make guide bar one end be located the anti-disengagement mechanism among the guide sleeve all the time, guide bar bottom end fixed connection is in the crossbeam, support the board and be equipped with and carry out the support board fixed establishment of rigidity to self, the crossbeam is equipped with the crossbeam lifting hook coupling mechanism that makes the crossbeam can be connected with the lifting hook.

Through adopting above-mentioned technical scheme, make when the crossbeam is being moved receiving the drive of lifting hook, guide bar and guide sleeve's limiting action make the crossbeam stabilize and remove along vertical direction, avoid the crossbeam the condition that the slope may appear, make the standard weighing sensor at crossbeam length direction both ends can be the level and laminate in the lower surface of butt plate, make detection achievement normally go on, standard weighing sensor butt in butt plate simultaneously, can not cause extra effort to the girder of hoist, make the girder of hoist difficult impaired.

Preferably, support board fixed establishment and include that two are squeezed into the subaerial spud pile, fixed connection in crossbeam length direction both ends and be vertical two installation poles, fixed connection in the installation pole and be horizontally flange connection dish, flange connection between flange connection dish and the spud pile upper surface, installation pole along vertical direction grafting and sliding connection in the spud pile.

Through adopting above-mentioned technical scheme, the spud pile can provide the bearing capacity of better vertical direction, and the installation pole is pegged graft corresponding to the mounting groove simultaneously, and the location installation of the crossbeam of being convenient for, flange connection dish make can dismantle so that retrieve detection device and maintain after the test finishes, supply to detect the use next time.

Preferably, crossbeam lifting hook coupling mechanism includes that fixed connection carries on the back montant of one end mutually in two lower horizontal poles, one-to-one respectively fixed connection in the lower horizontal pole at crossbeam width direction both ends, fixed connection in the same root of two montants upper ends horizontal pole, locate the rings of horizontal pole upper surface.

Through adopting above-mentioned technical scheme for the lifting hook can be directly connected with rings, need not drive the crossbeam through ligature wire rope again temporarily and remove, and is comparatively convenient.

Preferably, anti-disengaging mechanism includes fixed connection in guide sleeve upper portion inner wall and is vertical anticreep pole, sets up in the guide bar upper surface and supplies the anticreep pole to peg graft the anticreep groove that gets into, fixed connection in the anticreep disk of anticreep pole bottom, fixed connection in the anticreep disk of anticreep groove upper portion opening part and butt in the anticreep disk.

Through adopting above-mentioned technical scheme for when the lifting hook is not connected with rings, the guide bar also can not break away from between the guide sleeve, makes at the in-process of next use, need not align the guide bar and carry out the location grafting installation in guide sleeve, and is comparatively convenient.

Preferably, the anti-dropping circular ring piece and the anti-dropping circular piece are provided with rubber layers on the adjacent side surfaces.

Through adopting above-mentioned technical scheme for when lifting hook and rings break away from mutually, can obtain certain buffering when colliding between anticreep ring piece and the anticreep ring piece, make not have great impact between anticreep ring piece and the anticreep ring piece.

Preferably, the crossbeam below is equipped with standard weight, and the spliced eye has all been seted up at standard weight length direction both ends, and crossbeam lower surface fixed connection has the mechanism piece, and mechanism piece lower surface is equipped with the slidable and pegs graft in two splicing pieces of spliced eye, and the mechanism piece is equipped with and drives two splicing pieces and carry out the splicing piece drive mechanism that moves in opposite directions.

Through adopting above-mentioned technical scheme for the installation of standard weight is fixed comparatively convenient, also makes the standard weight receive to drive the in-process that rises comparatively stable simultaneously, is difficult for appearing rocking.

Preferably, the plug block drive mechanism includes the screw rod groove of seting up in mechanism piece lower surface, rotates the two-way screw rod of connecting in the screw rod groove, along plug block moving direction sliding connection in two screw rod pieces of screw rod groove, coaxial fixed connection is located the carousel of the outside one end of screw rod groove in two-way screw rod, the screw thread opposite direction of the central point both sides of the part that two-way screw rod is located the screw rod groove, two screw rod pieces are equal apart from the interval of the central point of the part that two-way screw rod is located the screw rod groove, two screw rod pieces are fixed connection respectively in two plug blocks.

Through adopting above-mentioned technical scheme, rotate the carousel and can drive two plug-in blocks and move in opposite directions and correspond the grafting hole at standard weight length direction both ends and peg graft, it is comparatively convenient.

Preferably, the positioning groove for the mechanism block to be inserted along the vertical direction is formed in the upper surface of the standard weight, and the positioning groove penetrates through the end faces of the two ends of the length direction of the standard weight.

Through adopting above-mentioned technical scheme, carry out the grafting of vertical side with the mechanism piece corresponds the constant head tank for the plug-in connection piece can correspond the spliced eye, need not adjust the position of mechanism piece again so that plug-in connection piece and spliced eye are corresponding, and is comparatively convenient.

In summary, the present application includes at least one of the following benefits:

when the cross beam is driven by the lifting hook to move, the cross beam is stably moved in the vertical direction under the limiting action of the guide rod and the guide sleeve, the condition that the cross beam is likely to incline is avoided, the standard weighing sensors at two ends of the length direction of the cross beam can be horizontally attached to the lower surface of the abutting plate, detection work can be normally carried out, meanwhile, the standard weighing sensors abut against the abutting plate, extra acting force cannot be caused to a girder of the crane, and the girder of the crane is not easy to damage;

carry out the ascending grafting of vertical side with mechanism's piece correspondence constant head tank for the grafting piece can correspond the spliced eye, need not adjust mechanism's piece again the position so that the grafting piece is corresponding with the spliced eye, and is comparatively convenient.

Drawings

FIG. 1 is a main structure view of the present invention;

FIG. 2 is a schematic view, partly in section, of the connection between the guide rod and the guide sleeve;

fig. 3 is a schematic view of the bottom surface of the mechanism block viewed from below and the exploded structure of the standard weight vertically away from the mechanism block.

Description of reference numerals: 1. a cross beam; 11. a screw channel; 12. a bidirectional screw; 13. a screw block; 14. a turntable; 15. fixing the pile; 16. positioning a groove; 2. a standard weighing sensor; 21. a hoisting ring; 22. an anti-drop rod; 23. a drop-proof groove; 24. anti-drop wafers; 25. an anti-drop ring sheet; 26. a rubber layer; 27. inserting holes; 28. a mechanism block; 29. an insertion block; 3. a resisting plate; 31. a guide sleeve; 32. a guide bar; 33. standard weights; 34. mounting a rod; 36. a flange connecting plate; 37. a lower horizontal bar; 38. a vertical rod; 39. and an upper horizontal rod.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

The embodiment of the application discloses load lifting limiter detection device of tower crane, refer to FIG. 1, be horizontally crossbeam 1 including the upper surface, crossbeam 1 length direction both ends are all installed one and are vertical standard weighing sensor 2, and crossbeam 1 top is installed and is the level and length direction is on a parallel with crossbeam 1 length direction's support board 3, but standard weighing sensor 2 butt in the lower surface of support board 3.

Referring to fig. 1, the supporting plate 3 is provided with a supporting plate fixing mechanism for fixing the position of the supporting plate, the supporting plate fixing mechanism comprises two fixing piles 15 which are driven into the ground and vertical, two fixing piles 15 are coaxially inserted with mounting rods 34 along the vertical direction, two ends of each mounting rod 34 in the length direction are respectively and fixedly connected to two ends of the supporting plate 3 in the length direction, the outer wall of the circumference of each mounting rod 34 is coaxially and fixedly connected with a flange plate 36, and the flange plates 36 are connected with the upper surfaces of the fixing piles 15 through flanges.

Referring to fig. 1, crossbeam 1 installs and is equipped with the crossbeam lifting hook coupling mechanism who makes crossbeam 1 can be connected with the lifting hook, crossbeam lifting hook coupling mechanism includes two lower horizontal poles 37 of difference one-to-one fixed connection in crossbeam 1 width direction both ends, lower horizontal pole 37 length direction is on a parallel with crossbeam 1 width direction, the equal fixedly connected with montant 38 in the back of the body both ends of lower horizontal pole 37, montant 38 upper end height is higher than the height of 3 upper surfaces of buttressing, the same root of two montant 38 upper end fixedly connected with is gone up horizontal pole 39, it is on a parallel with lower horizontal pole 37 length direction to go up horizontal pole 39 length direction, go up horizontal pole 39 upper portion central point department fixedly connected with and supply the lifting hook to wear to establish the.

Referring to fig. 1 and 2, two ends of the cross beam 1 in the length direction are fixedly connected with vertical guide rods 32, two ends of the abutting plate 3 in the length direction are fixedly connected with vertical guide sleeves 31, the guide rods 32 are coaxially inserted and slidably connected to the guide sleeves 31 in the vertical direction, an anti-separation mechanism is installed inside the guide sleeves 31 and the guide rods 32 to enable one ends of the guide rods 32 to be always located in the guide sleeves 31, the anti-separation mechanism comprises vertical anti-separation grooves 23 coaxially arranged on the upper surfaces of the guide rods 32, anti-separation rods 22 inserted in the anti-separation grooves 23 are coaxially and fixedly connected to the inner walls of the anti-separation grooves 23 in the vertical direction, anti-separation circular ring pieces 24 slidably connected to the inner walls of the anti-separation grooves 23 in the vertical direction are fixedly connected to the bottom ends of the anti-separation rods 22, anti-separation circular ring pieces 25 capable of abutting against the anti-separation circular ring pieces 24 are fixedly connected to the upper openings, the rubber layer 26 is adhered to the horizontal planes of the anti-falling circular ring piece 25 and the anti-falling circular piece 24.

Referring to fig. 1 and 3, a mechanism block 28 is fixedly connected to the lower surface of a beam 1, the length direction of the mechanism block 28 is parallel to the length direction of the beam 1, two insertion blocks 29 capable of moving in opposite directions along the length direction of the mechanism block 28 are installed below the mechanism block 28, an insertion block driving mechanism for driving the two insertion blocks 29 to move in opposite directions is installed on the mechanism block 28, the insertion block driving mechanism comprises a screw groove 11 formed in the lower surface of the mechanism block 28 along the length direction of the mechanism block 28, the screw groove 11 is rotatably connected with a bidirectional screw 12, the length direction of which is parallel to the length direction of the mechanism block 28, the screw directions of two sides of the central point of the part of the bidirectional screw 12 located in the screw groove 11 are opposite, the screw groove 11 is slidably connected with two screw blocks 13 along the length direction of the screw groove 11, the bidirectional screw 12 is inserted and connected with the two screw blocks 13 in a threaded manner, the two screw blocks 13 are spaced from the central point of the part, the two screw blocks 13 are respectively fixedly connected to the upper parts of the opposite ends of the two insertion blocks 29, the two-way screw 12 is exposed out of one end of the mechanism block 28 and is coaxially and fixedly connected with the turntable 14, the length direction of the standard weight 33 parallel to the length direction of the beam 1 is arranged below the mechanism block 28, the upper surface of the standard weight 33 is provided with a positioning groove 16 the length direction of which is parallel to the length direction of the mechanism block 28, the two ends of the positioning groove 16 in the length direction penetrate through the two ends of the standard weight 33 in the length direction, the mechanism block 28 can be inserted into the positioning groove 16 in the vertical direction, the two end faces of the standard weight 33 in the length direction are respectively provided with an inserting hole 27, the two inserting blocks 29 can be respectively inserted into the two inserting holes 27 along the length direction of the mechanism block 28, when it is desired to carry out the load limiter with weights close to the maximum value that can be lifted by the hook, the standard weight 33 can be installed to prevent the resisting plate 3 from being deformed by the action force in the vertical direction.

The load lifting limiter detection device of the tower crane in the embodiment of the application has the following implementation principle: connect lifting hook and rings 21 to the grafting for the lifting hook rises along vertical direction, can drive crossbeam 1 and rise along vertical direction, and guide bar 32 and guide sleeve 31 can not make crossbeam 1's removal take place great deviation.

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

1. The utility model provides a tower crane's load lifting limiter detection device, includes crossbeam (1), locates standard weighing sensor (2) at crossbeam (1) length direction both ends, its characterized in that: crossbeam (1) top is equipped with to board (3), support board (3) lower fixed surface is connected with several guide sleeve (31), each guide sleeve (31) bottom all has guide bar (32) of pegging graft in guide sleeve (31) along vertical direction sliding connection, be equipped with among guide bar (32) and guide sleeve (31) and make guide bar (32) one end be located the anti-disengaging mechanism among guide sleeve (31) all the time, guide bar (32) bottom fixed connection is in crossbeam (1), support board (3) are equipped with and carry out position fixing's support board fixed establishment to self, crossbeam (1) are equipped with the crossbeam lifting hook coupling mechanism that makes crossbeam (1) can be connected with the lifting hook.

2. The apparatus for detecting the limiter of tower crane according to claim 1, wherein: the butt plate fixing mechanism comprises two fixing piles (15) driven into the ground, two vertical mounting rods (34) fixedly connected to two ends of the length direction of the cross beam (1), and a flange connection disc (36) fixedly connected to the mounting rods (34) and horizontal, the flange connection between the flange connection disc (36) and the upper surface of the fixing pile (15), and the mounting rods (34) are inserted into the fixing piles (15) in a plugging mode along the vertical direction and are connected to the fixing piles in a sliding mode.

3. The apparatus for detecting the limiter of tower crane according to claim 2, wherein: crossbeam lifting hook coupling mechanism includes lower horizontal rod (37) of fixed connection at crossbeam (1) width direction both ends, one-to-one respectively fixed connection in two montants (38) of lower horizontal rod (37) back of the body one end mutually, fixed connection in same root upper horizontal rod (39) of two montants (38) upper ends, locate rings (21) of upper horizontal rod (39) upper surface.

4. The apparatus for detecting the limiter of tower crane according to claim 3, wherein: the anti-separation mechanism comprises an anti-separation groove (23) which is fixedly connected to the inner wall of the upper portion of the guide sleeve (31) and is vertical to the anti-separation rod (22), an anti-separation groove (23) which is formed in the upper surface of the guide rod (32) and is used for the anti-separation rod (22) to be inserted and enter, an anti-separation wafer (24) which is fixedly connected to the bottom end of the anti-separation rod (22), and an anti-separation ring wafer (25) which is fixedly connected to the opening of the upper portion of the anti-separation groove (.

5. The apparatus for detecting the limiter of tower crane according to claim 4, wherein: the anti-drop ring piece (25) and the anti-drop wafer (24) are provided with rubber layers (26) on the adjacent side surfaces.

6. The apparatus for detecting the limiter of tower crane according to claim 5, wherein: crossbeam (1) below is equipped with standard weight (33), and spliced eye (27) have all been seted up at standard weight (33) length direction both ends, and crossbeam (1) lower fixed surface is connected has mechanism piece (28), and mechanism piece (28) lower surface is equipped with two grafting pieces (29) of slidable grafting in spliced eye (27), and mechanism piece (28) are equipped with and drive two grafting pieces (29) and carry out the grafting piece drive mechanism that moves in opposite directions.

7. The apparatus for detecting the limiter of tower crane according to claim 6, wherein: the plug block driving mechanism comprises a screw groove (11) formed in the lower surface of a mechanism block (28), a bidirectional screw (12) connected to the screw groove (11) in a rotating mode, two screw blocks (13) connected to the screw groove (11) in a sliding mode along the moving direction of the plug block (29), a rotary disc (14) coaxially and fixedly connected to the bidirectional screw (12) and located at one end of the outer portion of the screw groove (11), the two screw blocks (12) are located on two sides of the central point of the portion in the screw groove (11) in an opposite direction, the distance between the two screw blocks (13) and the central point of the portion, located in the screw groove (11), of the bidirectional screw (12) is equal, and the two screw blocks (13) are fixedly connected to the two plug blocks (29) respectively.

8. The apparatus for detecting the limiter of hoisting capacity of a tower crane according to claim 7, wherein: and the upper surface of the standard weight (33) is provided with a positioning groove (16) for the mechanism block (28) to be inserted along the vertical direction, and the positioning groove (16) runs through the end surfaces of the two ends of the standard weight (33) in the length direction.