CN218708765U

CN218708765U - Tower crane driven by permanent magnet synchronous motor

Info

Publication number: CN218708765U
Application number: CN202222991464.6U
Authority: CN
Inventors: 黄文武; 胡刘璐
Original assignee: Dahan Technology Co ltd
Current assignee: Dahan Technology Co ltd
Priority date: 2022-11-10
Filing date: 2022-11-10
Publication date: 2023-03-24
Anticipated expiration: 2032-11-10

Abstract

The utility model discloses a tower crane driven by a permanent magnet synchronous motor, which comprises a supporting base, wherein the middle part of the top end of the supporting base is provided with four supporting columns, and a protective reinforcing frame is arranged between every two adjacent supporting columns; the beneficial effects are that: set up a plurality of spacing seats on the protection strengthening frame, guard plate and rack one, and the cooperation is by the horizontal pole, two safe cat ladders that montant and safety gear constitute, when stepping on two safe cat ladders, safe cat ladder (climbing usefulness) when stepping on the presser foot and stepping on the flange, can drive the guard plate expansion of below and slide, make operator's below form a safe baffle, can play when operator drops and block the guard action, very big improvement operator's life safety, another safe cat ladder (climbing usefulness down) is when stepping on the presser foot and stepping on the flange, the portable guard plate of accomodating, guard plate (the nearest one in below) of preventing the below (the guard plate that the below second is close and can provide and block the protection) and disturb its climbing down.

Description

Tower crane driven by permanent magnet synchronous motor

Technical Field

The utility model relates to a tower machine technical field particularly, relates to a permanent magnet synchronous motor driven tower machine.

Background

The tower crane is also called tower crane and tower crane, is the most common hoisting equipment on the construction site, is used for hoisting construction raw materials such as reinforcing steel bars, wood ridges, concrete, steel pipes and the like for construction, and is an essential equipment on the construction site.

When the tower crane need operate, need the very long cat ladder of operator climbing, at the in-process of climbing, only the protection strengthening frame on the support column can play certain guard action, in addition there is not other protective structure to the operator to protect the processing, after rainy and snowy, because there is certain moist on the cat ladder, the phenomenon of skidding very easily appears when the climbing, perhaps appear stepping on when usual, the phenomenon of falling down very easily appears in the operator under two kinds of circumstances, and because present permanent magnetism synchronous machine driven tower machine height is higher, its life safety of the operator after consequently falling down is hardly protected.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

To the problem in the correlation technique, the utility model provides a permanent magnet synchronous motor driven tower machine to overcome the above-mentioned technical problem that current correlation technique exists.

Therefore, the utility model discloses a specific technical scheme as follows:

the utility model provides a permanent magnet synchronous motor driven tower machine, includes and supports the base, the top middle part of supporting the base is equipped with four support columns, and is adjacent all be equipped with the protection enhancement frame between the support column, the top middle part of support column is equipped with the footstock, the top middle part of footstock is equipped with rather than the workstation of rotating the connection, the top of workstation is equipped with controls the room, one side top of support column is equipped with the protection platform, one of them the spacing seat that distributes about a plurality of is installed to the opposite side inner wall of protection enhancement frame, every one side of spacing seat all is equipped with rather than horizontal sliding connection's guard plate, one side of guard plate is equipped with a pair of rack one, adjacent two internally mounted between the protection enhancement frame has a pair of safe cat ladder that is connected.

Preferably, the safety ladder stand comprises a pair of vertical rods, a plurality of cross rods are connected between the two vertical rods, and safety mechanisms are mounted on part of the cross rods.

Preferably, the safety mechanism comprises a pedal convex plate positioned at the top end of the cross rod, the pedal convex plate penetrates through the lower portion of the cross rod, a pair of second racks is arranged at the bottom end of the pedal convex plate, a first gear meshed with the second racks is arranged on one side of one of the second racks, a second gear meshed with the first gear is arranged on the top end of the one rack, synchronizing wheels are mounted on the first gear and the second gear, and a synchronous belt matched with the first gear is wound between the two synchronizing wheels.

Preferably, a first supporting shaft is connected between the synchronizing wheel on the first gear and the vertical rod, a second supporting shaft is connected between the synchronizing wheel on the second gear and the front and back protective reinforcing frames, and the first rack is in sliding connection with the vertical rod.

Preferably, the safety mechanisms on the two safety crawling ladders are only different in position of the first gear, one first gear is located on one side of the second rack, and the other first gear is located on the other side of the second rack.

Preferably, the top end of each protection plate is provided with an elastic cushion pad, and the vertical distance between each two adjacent protection plates is 2 meters.

Preferably, the bottom end of the workbench is provided with a first opening, the bottom end of the top seat is provided with a second opening matched with the first opening, and the second opening is located right above the protective table.

The utility model has the advantages that:

1. the protective reinforcing frame is provided with a plurality of limiting seats, a protective plate and a first rack, and is matched with two safety crawling ladders consisting of a cross rod, a vertical rod and a safety mechanism, when the two safety crawling ladders are stepped on, one safety crawling ladder (for upward climbing) can drive the protective plate below to expand and slide when the stepping foot steps on the convex plate, so that a safe baffle is formed below an operator, when the operator falls down, the protective plate can play a role in blocking protection, the life safety of the operator is greatly improved, when the other safety crawling ladder (for downward climbing) steps on the stepping foot step on the convex plate, the protective plate can be movably stored, the protective plate below (the nearest protective plate below, the protective plate below the nearest protective plate below the protective plate and capable of providing blocking protection) is prevented from interfering with downward climbing of the protective plate;

2. all set up the upper and lower interval of two adjacent guard plates into 2 meters, when the operator slided from the horizontal pole, operator's the biggest distance of falling was 2 meters, and set up elastic buffer on every guard plate, can not cause life safety to the operator, simultaneously because two guard plates keep 2 meters, can provide suitable space, can be convenient for the operator take a rest on the guard plate temporarily.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is an overall structural schematic diagram of a permanent magnet synchronous motor driven tower crane according to an embodiment of the present invention;

fig. 2 is a schematic view of a partial structure of a permanent magnet synchronous motor driven tower crane according to an embodiment of the present invention;

fig. 3 is a partial front sectional view of a permanent magnet synchronous motor driven tower crane according to an embodiment of the present invention;

fig. 4 is a partial side view of a safety ladder in a permanent magnet synchronous motor driven tower crane according to the embodiment of the utility model.

In the figure:

1. a support base; 2. a support pillar; 3. a protective reinforcing frame; 4. a top seat; 5. a work table; 6. a control room; 7. a protection platform; 8. a limiting seat; 9. a protection plate; 10. a first rack; 11. a vertical rod; 12. a cross bar; 13. a pedal convex plate; 14. a second rack; 15. a first gear; 16. a second gear; 17. a synchronizing wheel; 18. a synchronous belt; 19. an elastic cushion pad; 20. a first opening; 21. and a second opening.

Detailed Description

To further illustrate the various embodiments, the present invention provides the accompanying drawings, which are part of the disclosure and which are primarily intended to illustrate embodiments and, together with the description, serve to explain the principles of operation of the embodiments, and, by reference to these drawings, those of ordinary skill in the art will understand the principles of the invention and its advantages, with reference to the drawings and figures, in which elements are not drawn to scale and like elements are generally designated by like reference numerals.

According to the utility model discloses an embodiment provides a permanent magnet synchronous motor driven tower machine.

The first embodiment;

as shown in fig. 1-4, according to the utility model discloses PMSM driven tower machine, including supporting base 1, the top middle part of supporting base 1 is equipped with four support columns 2, all be equipped with protection strengthening frame 3 between the adjacent support column 2, the top middle part of support column 2 is equipped with footstock 4, the top middle part of footstock 4 is equipped with rather than the workstation 5 of being connected of rotating, the top of workstation 5 is equipped with control room 6, one side top of support column 2 is equipped with protection platform 7, the spacing seat 8 that distributes about a plurality of is installed to one of them protection strengthening frame 3's opposite side inner wall, one side of every spacing seat 8 all is equipped with rather than horizontal sliding connection's guard plate 9, one side of guard plate 9 is equipped with a pair of rack 10, internally mounted between two adjacent protection strengthening frames 3 has a pair of safe cat ladder that is connected.

Example two;

as shown in fig. 1-4, according to the tower crane driven by the permanent magnet synchronous motor of the embodiment of the present invention, the safety ladder comprises a pair of vertical rods 11, a plurality of horizontal rods 12 are connected between the two vertical rods 11, a safety mechanism is installed on part of the horizontal rods 12, a specific composition structure of the safety ladder is disclosed, the safety mechanism comprises a pedal convex plate 13 located on the top end of the horizontal rod 12, the pedal convex plate 13 penetrates below the horizontal rod 12, a pair of racks two 14 are installed on the bottom end of the pedal convex plate 13, one side of one rack two 14 is provided with a gear one 15 engaged with the rack two, the top end of the rack one 10 is provided with a gear two 16 engaged with the rack two, the gear one 15 and the gear two 16 are both provided with synchronizing wheels 17, a synchronous belt 18 matched with the two synchronizing wheels 17 is wound between the two synchronizing wheels 17, when the pedal convex plate 13 is pressed, the protecting plate 9 below can be driven to expand and slide, A safe baffle is formed below an operator, when the operator falls down, the safe baffle effectively plays a role in blocking and protecting the operator and greatly improves the life safety of the operator, a first support shaft is connected between a synchronizing wheel 17 on a first gear 15 and a vertical rod 11 and plays a role in installing the first gear 15, a second support shaft is connected between a synchronizing wheel 17 on a second gear 16 and a front and back protection reinforcing frame 3 and plays a role in installing a second gear 16, a first rack 10 is in sliding connection with the vertical rod 11 and plays a role in limiting and supporting the first rack 10, safety mechanisms on the two safety ladder stands are only in different positions of the first gear 15, the first gear 15 is positioned on one side of a second rack 14, the first gear 15 is positioned on the other side of the second rack 14, when the two safety ladder stands are stepped on, one safety ladder stand (used for climbing up) can drive a protection plate 9 to play a role in protection, the other safety ladder (for climbing downwards) can accommodate the protection plate 9 and prevent the protection plate 9 below from interfering the climbing downwards.

The third embodiment;

as shown in fig. 1-4, according to the utility model discloses permanent magnet synchronous motor driven tower machine, the top of every guard plate 9 is equipped with all and all is equipped with elastic buffer pad 19, improve the buffer performance on the guard plate 9, can play good buffering guard action when the operator drops, the upper and lower interval of two adjacent guard plates 9 is 2 meters, when the operator slips from horizontal pole 12, operator's the biggest distance of dropping is 2 meters, can not cause life safety to the operator, two guard plates 9 keep 2 meters simultaneously, can provide suitable space, can be convenient for the operator to have a temporary rest on guard plate 9, workstation 5's bottom is equipped with opening one 20, the bottom of footstock 4 is equipped with and has saved the collector ring and the brush that go out the problem easily with opening one 20 assorted opening two 21, when opening one 20 aligns with opening two 21, can be convenient for the operator to climb on workstation 5, the tower machine of this application carries out the drive through permanent magnet synchronous motor, permanent magnet synchronous motor relatively ordinary motor has saved the excitation ring and the brush loss of going out the problem easily, need not, thereby the excitation current loss, the efficiency of tower machine improves the whole operation, thereby the stability is improved.

For the convenience of understanding the technical solution of the present invention, the following detailed description is made on the working principle or the operation mode of the present invention in the practical process.

In practical application, the tower crane is driven by the permanent magnet synchronous motor, the permanent magnet synchronous motor saves a collecting ring and an electric brush which are easy to cause problems compared with a common motor, exciting current is not needed, exciting loss is avoided, and the efficiency, the power density and the reliability of the motor are improved, so that the running stability of the whole tower crane is improved; when climbing upwards, when the foot of an operator presses the pedal plate 13, the rack II 14 moves downwards, the rack II 14 drives the gear I15 to rotate, under the combined action of the synchronizing wheel 17 and the synchronizing belt 18, the gear II 16 (the diameter of the gear II 16 is larger than that of the gear I15) rotates, the gear II 16 drives the rack I10 to move away from the limiting seat 8, the protection plate 9 is unfolded to move, a safe baffle is formed below the operator, when the operator falls down, the protection function can be achieved, and the life safety of the operator is greatly improved; when the operator steps on the pedal convex plate 13 during downward climbing, the protection plate 9 can be movably stored, and the protection plate 9 below (the nearest protection plate 9 below, and the protection plate 9 below the second nearest protection plate can still provide blocking protection) is prevented from interfering downward climbing; all set up adjacent two guard plates 9's upper and lower interval into 2 meters, when the operator slides down from horizontal pole 12, operator's the biggest distance of falling is 2 meters (for safe distance), and sets up elastic buffer 19 on every guard plate 9, can not cause life safety to the operator, simultaneously because two guard plates 9 keep 2 meters, can provide suitable space, because tower machine height is higher, can be convenient for the operator on guard plate 9 take a temporary rest.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a permanent magnet synchronous motor driven tower machine, its characterized in that, including supporting base (1), the top middle part of supporting base (1) is equipped with four support columns (2), and is adjacent all be equipped with protection additional strengthening (3) between support column (2), the top middle part of support column (2) is equipped with footstock (4), the top middle part of footstock (4) is equipped with workstation (5) rather than the rotation connection, the top of workstation (5) is equipped with control room (6), one side top of support column (2) is equipped with protection platform (7), one of them spacing seat (8) that a plurality of distributes from top to bottom are installed to the opposite side inner wall of protection additional strengthening (3), every one side of spacing seat (8) all is equipped with guard plate (9) rather than horizontal sliding connection, one side of guard plate (9) is equipped with a pair of rack (10), adjacent two internally mounted between protection additional strengthening (3) has a pair of safe cat ladder that is connected.

2. The tower crane driven by the permanent magnet synchronous motor as claimed in claim 1, wherein the safety ladder comprises a pair of vertical rods (11), a plurality of cross rods (12) are connected between the two vertical rods (11), and a safety mechanism is mounted on a part of the cross rods (12).

3. The tower crane driven by the permanent magnet synchronous motor according to claim 2, wherein the safety mechanism comprises a pedal protruding plate (13) positioned at the top end of the cross rod (12), the pedal protruding plate (13) penetrates below the cross rod (12), the bottom end of the pedal protruding plate (13) is provided with a pair of second racks (14), one side of one of the second racks (14) is provided with a first gear (15) meshed with the second rack, the top end of the first rack (10) is provided with a second gear (16) meshed with the first rack, the first gear (15) and the second gear (16) are both provided with synchronizing wheels (17), and a synchronous belt (18) matched with the first gear and the second gear is wound between the two synchronizing wheels (17).

4. The tower crane driven by the permanent magnet synchronous motor according to claim 3, wherein a first supporting shaft is connected between the synchronizing wheel (17) on the first gear (15) and the vertical rod (11), a second supporting shaft is connected between the synchronizing wheel (17) on the second gear (16) and the front and rear protective reinforcing frames (3), and the first rack (10) is in sliding connection with the vertical rod (11).

5. A permanent magnet synchronous motor driven tower crane according to claim 3, characterized in that the safety mechanisms on the two safety ladders differ only in the position of the first gear (15), one of the first gears (15) being located on one side of the second rack (14) and the other of the first gears (15) being located on the other side of the second rack (14).

6. Tower crane driven by a permanent magnet synchronous motor according to claim 1, characterized in that the top end of each protection plate (9) is provided with an elastic buffer pad (19), and the distance between the top and the bottom of two adjacent protection plates (9) is 2 meters.

7. The tower crane driven by the permanent magnet synchronous motor according to claim 1, wherein a first opening (20) is formed in the bottom end of the workbench (5), a second opening (21) matched with the first opening (20) is formed in the bottom end of the top base (4), and the second opening (21) is located right above the protection platform (7).