CN214989844U

CN214989844U - Single-girder cantilever crane

Info

Publication number: CN214989844U
Application number: CN202121390548.3U
Authority: CN
Inventors: 郭鹏涛; 胡鸣尚; 姜甜
Original assignee: Henan Huanghe Explosion Proof Crane Co Ltd
Current assignee: Henan Huanghe Explosion Proof Crane Co Ltd
Priority date: 2021-06-22
Filing date: 2021-06-22
Publication date: 2021-12-03
Anticipated expiration: 2031-06-22

Abstract

The utility model discloses a single girder cantilever crane relates to hoist technical field, including crossbeam, stand and base, four vertical being provided with of corner on base top lock ground bolt, and the vertical stand of installing of intermediate position department on base top, the driving gear is installed through the pivot to the servo motor output, and the vertical rotation in the inside upper end of stand of driving gear one side is connected with the bull stick, bull stick upper surface installs the driven gear who meshes with the driving gear mutually, the rolling disc is installed on the top of bull stick, and one side of rolling disc transversely installs the crossbeam, and one side of crossbeam is provided with the drive overhead traveling crane, the bottom of drive overhead traveling crane is provided with electric block, and the both sides of install bin bottom are provided with the couple. The utility model discloses a set up the thrust piece, realize making servo motor stop the back, the crossbeam is along with stopping, avoids taking place to turn round or rotate excessive phenomenon because of inertia, improves and lifts by crane the precision, guarantees to lift by crane going on smoothly of operation.

Description

Single-girder cantilever crane

Technical Field

The utility model relates to a hoist technical field specifically is a single girder cantilever crane.

Background

The cantilever crane is a medium and small-sized hoisting device developed in recent years, and various cantilever cranes have been produced in the market due to the characteristics of unique structure, safety, reliability, more flexibility and the like, but the existing single-girder cantilever crane still has certain defects.

Through the retrieval, chinese patent grant publication No. CN208022628U, 30.10.2018 bulletin date discloses a stable form cantilever crane, and it proposes "the side surface welding of fixed disk has the pushing hands of" U "type structure," the upper surface of fixed disk is provided with the stand through the bolt fastening, the fixed cantilever that is provided with of side surface of stand, the surface cover of cantilever is equipped with spacing support, spacing support's side surface is provided with limit stop through the bolt fastening, the surface block of cantilever is provided with the calabash, the end fixing of calabash is provided with the lifting hook, "this utility model has increased stability, but its gyration that prevents that can not be fine, easy inertia leads to excessively rotating or gyration, leads to very inconvenient when lifting, in view of the above-mentioned problem, deep research, there is the present case to produce.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a single girder cantilever crane to solve the inconvenient problem of preventing gyration that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a single-girder cantilever crane comprises a cross beam, a stand column and a base, and also comprises an anti-loosening structure for avoiding unstable installation caused by loosening, an adjusting structure for improving the lifting practicability and an anti-rotating structure for avoiding accidents caused by rotation;

the four corners of the top end of the base are vertically provided with ground locking bolts, the middle position of the top end of the base is vertically provided with an upright post, and the anti-loosening structure is arranged on the periphery of the bottom end inside the upright post;

the lower end of one side of the upright post is provided with a PLC controller, one side of the upper bottom end inside the upright post is provided with a servo motor, the output end of the servo motor is provided with a driving gear through a rotating shaft, the upper end inside the upright post on one side of the driving gear is vertically and rotatably connected with a rotating rod, the upper end of the surface of the rotating rod is provided with a driven gear meshed with the driving gear, and an anti-rotating structure is arranged inside the upright post on one side of the driven gear;

the rolling disc is installed on the top of bull stick, and one side of rolling disc transversely installs the crossbeam, the stand surface of crossbeam bottom one side is provided with supplementary hoop, and one side of crossbeam is provided with the drive overhead traveling crane, the bottom of drive overhead traveling crane is provided with electric block, and the link is installed through the cable wire in the electric block bottom, the install bin is installed to the bottom of link, and the both sides of install bin bottom are provided with the couple, adjust the inside that the structure setting is at the install bin.

Preferably, prevent that the rotating-structure includes the thrust piece, the thrust piece articulates on the inside one side top of stand on one side of driven gear, and the both ends of thrust piece one side articulate has the connecting rod, the stand internally mounted at thrust piece both ends has the slide bar, and the sliding surface of slide bar is connected with the movable block, the one end and the connecting rod one end of movable block are articulated, and the stand inner wall of movable block one side has seted up the spout, the inside one end of spout is provided with the elastic bag, and the inside sliding connection of spout of elastic bag one end has the slider, the one end and the movable block one end of slider are connected, the constant pressure case has been seted up to the stand inside of spout one side, and the inside intercommunication of pipe and elastic bag is passed through to the inside one end of constant pressure case.

Preferably, the bottom end inside the rotating disc is annularly provided with an auxiliary groove, and the top end of the upright post is annularly provided with an auxiliary block matched with the auxiliary groove.

Preferably, locking structure that moves includes threaded rod, thread block, indent, depression bar and compresses tightly the rocking handle, the vertical rotation of threaded rod is connected around the inside bottom of stand, and the top of threaded rod installs and compress tightly the rocking handle, the surface threaded connection of threaded rod has the thread block, and one side of thread block installs the depression bar, the indent is installed to the bottom of depression bar one side.

Preferably, the shape of the indent is an inverted U-shape, and the area of the inner cross section of the indent is larger than the area of the cross section of the top end of the ground-locking bolt.

Preferably, adjust the structure and include spacing groove, positive and negative lead screw, regulation rocking handle and pole piece, positive and negative lead screw horizontal rotation is connected in the inside of install bin, and installs the regulation rocking handle that extends to the install bin outside on one side of the positive and negative lead screw, the install bin internal thread of positive and negative lead screw surface both sides has the pole piece, and the bottom and the couple top fixed connection of pole piece, the spacing groove has transversely been seted up to the intermediate position department of install bin bottom both sides.

Preferably, the width of the limiting groove is equal to the width of the top end of the hook, and the hook and the limiting groove are symmetrically distributed about the vertical central axis of the installation box.

Compared with the prior art, the utility model provides a pair of single girder cantilever crane has following beneficial effect:

1. the utility model provides an auxiliary block, driving gear and thrust block, utilize driven gear to rotate and drive the thrust block and deflect, and then make the connecting rod deflect and drive the movable block and slide, make the slider slide extrusion elastic bag inside the spout, realize when servo motor stops working, the crossbeam that rotates because of inertia can drive the bull stick and rotate, but because certain hindrance power of elastic bag, make the bull stick rotate and drive the power that driven gear rotated and can't make the thrust block deflect smoothly, and then hinder driven gear's rotation, realize after stopping servo motor, the crossbeam is along with stopping, make the turned angle more accurate, improve and lift by crane the precision, avoid taking place gyration or the phenomenon of rotating excessively, guarantee to lift by crane going on smoothly, thereby solved the inconvenient problem of preventing gyration;

2. the utility model provides a locking structure that moves, the rotation that utilizes the compressing rocking handle makes the threaded rod rotate, and then make the screw thread piece descend and drive the depression bar decline, make the indent descend until the card is at lock ground bolt top, and then protect and compress tightly lock ground bolt top, reduce the corruption to lock ground bolt top such as steam, avoid corroding seriously to lead to the inconvenience of follow-up maintenance, can compress tightly down lock ground bolt simultaneously, avoid taking place the screw thread in its use and become flexible, lead to the rising of lock ground bolt, and then improve the installation stability, avoid the potential safety hazard because of the screw thread becomes flexible and leads to, thereby solved the problem that the bolt is easy to become flexible;

3. the utility model provides an adjust structure and install bin, utilize to adjust the rotation that the rocking handle rotated the positive and negative lead screw of drive for the removal of pole piece removal drive couple sets up the spacing groove simultaneously and carries on spacingly to the removal of couple, makes it remove more steady, and then makes can change the interval between the couple, is convenient for lift by crane the operation to longer article, guarantees the stability that different specification article lifted by crane, improves its practicality, thereby has solved the problem of inconvenient regulation.

Drawings

Fig. 1 is a schematic front view of a cross-sectional structure of the present invention;

fig. 2 is a schematic side view of the cross-sectional structure of the present invention;

fig. 3 is a schematic view of a partial top-view cross-sectional structure of the present invention;

fig. 4 is an enlarged schematic view of a portion a of fig. 3 according to the present invention;

FIG. 5 is a schematic structural view of the installation box of the present invention;

fig. 6 is a schematic view of a bottom partial structure of the column of the present invention.

In the figure: 1. a cross beam; 2. driving a crown block; 3. an electric hoist; 4. rotating the disc; 5. an auxiliary groove; 6. a rotating rod; 7. a servo motor; 8. an auxiliary hoop; 9. a column; 10. a PLC controller; 11. an anti-loosening structure; 1101. a threaded rod; 1102. a thread block; 1103. pressing a groove; 1104. a pressure lever; 1105. pressing the rocking handle; 12. a ground locking bolt; 13. a base; 14. hooking; 15. an adjustment structure; 1501. a limiting groove; 1502. a positive and negative screw rod; 1503. adjusting the rocking handle; 1504. a rod block; 16. installing a box; 17. a connecting frame; 18. a driven gear; 19. an auxiliary block; 20. a driving gear; 21. a connecting rod; 22. a thrust block; 23. a chute; 24. a slider; 25. an elastic bag; 26. a constant pressure box; 27. a slide bar; 28. a movable block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1: referring to fig. 1-6, a single-girder cantilever crane comprises a beam 1, a column 9, a base 13, an anti-loosening structure 11 for preventing unstable installation caused by loosening, an adjusting structure 15 for improving the lifting practicability, and an anti-rotation structure for preventing accidents caused by rotation;

the four corners of the top end of the base 13 are vertically provided with ground locking bolts 12, the middle position of the top end of the base 13 is vertically provided with an upright post 9, and the anti-loosening structures 11 are arranged on the periphery of the bottom end inside the upright post 9;

the lower end of one side of the upright post 9 is provided with a PLC (programmable logic controller) 10, the type of the PLC 10 can be FX1N-14MR-001, one side of the upper end inside the upright post 9 is provided with a servo motor 7, the type of the servo motor 7 can be SGM7G-09AFC61, the output end of the servo motor 7 is provided with a driving gear 20 through a rotating shaft, the upper end inside the upright post 9 at one side of the driving gear 20 is vertically and rotatably connected with a rotating rod 6, the upper end of the surface of the rotating rod 6 is provided with a driven gear 18 meshed with the driving gear 20, and an anti-rotating structure is arranged inside the upright post 9 at one side of the driven gear 18;

the top end of the rotating rod 6 is provided with a rotating disc 4, one side of the rotating disc 4 is transversely provided with a beam 1, the surface of a stand column 9 at one side of the bottom end of the beam 1 is provided with an auxiliary hoop 8, one side of the beam 1 is provided with a driving crown block 2, the bottom end of the driving crown block 2 is provided with an electric block 3, the model of the electric block 3 can be TC-02, the bottom end of the electric block 3 is provided with a connecting frame 17 through a steel cable, the bottom end of the connecting frame 17 is provided with an installation box 16, two sides of the bottom end of the installation box 16 are provided with hooks 14, and an adjusting structure 15 is arranged inside the installation box 16;

referring to fig. 1-6, a single-girder cantilever crane further includes an anti-rotation structure, the anti-rotation structure includes a thrust block 22, the thrust block 22 is hinged to the top end of one side inside a vertical column 9 on one side of a driven gear 18, two ends of one side of the thrust block 22 are hinged to a connecting rod 21, a sliding rod 27 is installed inside the vertical column 9 on two ends of the thrust block 22, the surface of the sliding rod 27 is connected with a movable block 28 in a sliding manner, one end of the movable block 28 is hinged to one end of the connecting rod 21, a sliding groove 23 is formed in the inner wall of the vertical column 9 on one side of the movable block 28, an elastic bag 25 is arranged at one end inside the sliding groove 23, a sliding block 24 is connected inside the sliding groove 23 at one end of the elastic bag 25 in a sliding manner, one end of the sliding block 24 is connected to one end of the movable block 28, a constant pressure box 26 is arranged inside the vertical column 9 on one side of the sliding groove 23, and one end inside the constant pressure box 26 is communicated with the elastic bag 25 through a conduit;

an auxiliary groove 5 is annularly formed at the bottom end inside the rotating disc 4, and an auxiliary block 19 matched with the auxiliary groove 5 is annularly arranged at the top end of the upright post 9;

specifically, as shown in fig. 1, fig. 2, fig. 3 and fig. 4, the thrust block 22 is driven to deflect by the rotation of the driven gear 18, and then the connecting rod 21 is driven to deflect to drive the movable block 28 to slide, so that the sliding block 24 slides inside the sliding groove 23 to extrude the elastic bag 25, after the servo motor 7 stops working, the rotating beam 1 can drive the rotating rod 6 to rotate due to inertia, but due to a certain blocking force of the elastic bag 25, the rotating rod 6 can rotate to drive the force for driving the driven gear 18 to rotate, so that the thrust block 22 cannot deflect smoothly, and then the rotation of the driven gear 18 is blocked, so that after the servo motor 7 stops, the rotating beam 1 stops along with the stop, so that the rotation angle is more accurate, the phenomenon of rotation or excessive rotation is avoided, and meanwhile, the sliding of the auxiliary block 19 inside the auxiliary groove 5 is utilized, and the stability of the rotation of the beam 1 is ensured.

Example 2: the anti-loosening structure 11 comprises a threaded rod 1101, a threaded block 1102, a pressing groove 1103, a pressing rod 1104 and a pressing rocking handle 1105, wherein the threaded rod 1101 is vertically and rotatably connected to the periphery of the bottom end inside the upright post 9, the pressing rocking handle 1105 is installed at the top end of the threaded rod 1101, the threaded block 1102 is in threaded connection with the surface of the threaded rod 1101, the pressing rod 1104 is installed on one side of the threaded block 1102, and the pressing groove 1103 is installed at the bottom end of one side of the pressing rod 1104;

the pressing groove 1103 is shaped like an inverted U, and the area of the inner cross section of the pressing groove 1103 is larger than that of the top end of the ground locking bolt 12;

specifically, as shown in fig. 1, 2 and 6, the threaded rod 1101 is rotated by the rotation of the pressing rocking handle 1105, and then the threaded block 1102 is lowered to drive the pressing rod 1104 to descend, so that the inverted U-shaped pressing groove 1103 descends until being clamped at the top end of the locking ground bolt 12, and then the top end of the locking ground bolt 12 is protected and pressed, corrosion of water vapor and the like to the top end of the locking ground bolt 12 is reduced, meanwhile, the locking ground bolt 12 can be pressed downwards, and the phenomenon that the threads are loosened in the use process of the locking ground bolt 12 to cause the rising of the locking ground bolt 12 is avoided, and further, the installation stability is improved.

Example 3: the adjusting structure 15 comprises a limiting groove 1501, a positive and negative screw rod 1502, an adjusting crank 1503 and a rod block 1504, wherein the positive and negative screw rod 1502 is transversely and rotatably connected inside the installation box 16, the adjusting crank 1503 extending to the outside of the installation box 16 is installed on one side of the positive and negative screw rod 1502, the rod blocks 1504 are in threaded connection inside the installation box 16 on two sides of the surface of the positive and negative screw rod 1502, the bottom ends of the rod blocks 1504 are fixedly connected with the top ends of the hooks 14, and the limiting groove 1501 is transversely formed in the middle position of two sides of the bottom end of the installation box 16;

the width of the limiting groove 1501 is equal to that of the top end of the hook 14, and the hook 14 and the limiting groove 1501 are symmetrically distributed about a vertical central axis of the installation box 16;

specifically, as shown in fig. 1 and 5, the rotation of the positive and negative lead screw 1502 is driven by adjusting the rotation of the crank 1503, so that the rod block 1504 moves to drive the hook 14 to move, and meanwhile, the limiting groove 1501 is arranged to limit the movement of the hook 14, so that the movement of the hook is more stable, further, the distance between the hooks 14 can be changed, the lifting operation of longer articles is facilitated, and the lifting stability of the articles with different specifications is ensured.

The output end of the PLC 10 is electrically connected with the input ends of the electric hoist 3 and the servo motor 7 through wires.

The working principle is as follows: when the crane is used, firstly, the upright post 9 and the base 13 are fixed at a designated working place through the ground locking bolt 12, and then the crane is installed and fixed;

the first innovation point implementation step:

the first step is as follows: then the pressing rocking handle 1105 is rotated to rotate the threaded rod 1101, and the threaded block 1102 is lowered to drive the pressing rod 1104 to descend by utilizing the threaded fit between the threaded rod 1101 and the threaded block 1102;

the second step is that: the pressing groove 1103 is lowered until the pressing groove is clamped at the top end of the ground locking bolt 12, so that the top end of the ground locking bolt 12 is protected and pressed, and the corrosion of water vapor and the like to the top end of the ground locking bolt 12 is reduced;

the third step: meanwhile, the ground locking bolt 12 can be pressed downwards, and the phenomenon that the ground locking bolt 12 rises due to loosening of threads in the use process is avoided.

Then, the crown block 2 is externally connected with a power supply, the electric hoist 3 is driven to move to a specified place, and the connecting frame 17 is driven to descend by the electric hoist 3 to drive the installation box 16 to descend to a specified height;

the implementation step of the second innovation point:

the first step is as follows: the worker can rotate the adjusting crank 1503 to drive the positive and negative screw rod 1502 to rotate, and the screw thread fit between the positive and negative screw rod 1502 and the rod block 1504 is utilized to enable the rod block 1504 to move to drive the hook 14 to move;

the second step is that: meanwhile, the limiting groove 1501 is arranged to limit the movement of the hook 14, so that the movement is more stable;

the third step: further, the distance between the hooks 14 can be changed, so that the long object can be lifted conveniently, and the practicability is improved.

After the object is hung by the hook 14, the mounting box 16 is lifted to drive the object to ascend through the electric hoist 3, then the servo motor 7 can be started to drive the driving gear 20 to rotate, the driven gear 18 rotates to drive the rotating rod 6 to rotate by utilizing the mutual meshing between the driving gear 20 and the driven gear 18, and further the rotating disc 4 is driven to rotate, so that the cross beam 1 rotates, the operation area of the crane is larger, and the crane is convenient to hoist;

the third innovation point implementation step:

the first step is as follows: meanwhile, the thrust block 22 can be deflected during the rotation of the driven gear 18, so that the connecting rod 21 is deflected to drive the movable block 28 to slide on the surface of the sliding rod 27, the sliding block 24 slides and extrudes the elastic bag 25 in the sliding groove 23, and partial air in the sliding block is conveyed to the inside of the constant pressure box 26 through a conduit;

the second step is that: therefore, after the servo motor 7 stops working, the cross beam 1 rotating due to inertia can drive the rotating rod 6 to rotate, but due to a certain blocking force of the elastic bag 25, the force of the rotating rod 6 rotating to drive the driven gear 18 to rotate can not enable the thrust block 22 to deflect smoothly;

the third step: and then hinder driven gear 18's rotation, realize making servo motor 7 stop the back, crossbeam 1 is along with stopping for turned angle is more accurate, improves and lifts by crane the precision.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a single girder cantilever crane, includes crossbeam (1), stand (9) and base (13), its characterized in that: the anti-loosening structure also comprises an anti-loosening structure (11) for avoiding unstable installation caused by loosening, an adjusting structure (15) for improving the lifting practicability and an anti-rotating structure for avoiding accidents caused by rotation;

ground locking bolts (12) are vertically arranged at four corners of the top end of the base (13), an upright post (9) is vertically arranged at the middle position of the top end of the base (13), and the anti-loosening structures (11) are arranged on the periphery of the bottom end inside the upright post (9);

the lower end of one side of the upright post (9) is provided with a PLC (10), one side of the upper bottom end inside the upright post (9) is provided with a servo motor (7), the output end of the servo motor (7) is provided with a driving gear (20) through a rotating shaft, the upper end inside the upright post (9) on one side of the driving gear (20) is vertically and rotatably connected with a rotating rod (6), the upper end of the surface of the rotating rod (6) is provided with a driven gear (18) meshed with the driving gear (20), and an anti-rotating structure is arranged inside the upright post (9) on one side of the driven gear (18);

rolling disc (4) are installed on the top of bull stick (6), and one side of rolling disc (4) transversely installs crossbeam (1), stand (9) surface of crossbeam (1) bottom one side is provided with supplementary hoop (8), and one side of crossbeam (1) is provided with drive overhead traveling crane (2), the bottom of drive overhead traveling crane (2) is provided with electric block (3), and electric block (3) bottom installs link (17) through the cable wire, install box (16) in the bottom of link (17), and the both sides of install box (16) bottom are provided with couple (14), adjust structure (15) and set up the inside at install box (16).

2. The single main beam cantilever crane of claim 1, wherein: the anti-rotation structure comprises a thrust block (22), wherein the thrust block (22) is hinged to the top end of one side inside a stand column (9) on one side of a driven gear (18), connecting rods (21) are hinged to two ends of one side of the thrust block (22), a sliding rod (27) is mounted inside the stand column (9) at two ends of the thrust block (22), a sliding block (28) is connected to the surface of the sliding rod (27) in a sliding mode, one end of the sliding block (28) is hinged to one end of the connecting rods (21), a sliding groove (23) is formed in the inner wall of the stand column (9) on one side of the sliding block (28), an elastic bag (25) is arranged at one end inside the sliding groove (23), a sliding block (24) is connected to the inside of the sliding groove (23) at one end of the elastic bag (25), one end of the sliding block (24) is connected to one end of the movable block (28), a constant pressure box (26) is formed inside the stand column (9) on one side of the sliding groove (23), and one end of the interior of the constant pressure box (26) is communicated with the interior of the elastic bag (25) through a conduit.

3. The single main beam cantilever crane of claim 1, wherein: auxiliary groove (5) have been seted up to the bottom ring shape of rolling disc (4) inside, and stand (9) top ring-type is installed and is assisted piece (19) with auxiliary groove (5) matched with.

4. The single main beam cantilever crane of claim 1, wherein: locking structure (11) of moving includes threaded rod (1101), screw block (1102), indent (1103), depression bar (1104) and compresses tightly rocking handle (1105), vertical rotation of threaded rod (1101) is connected around the inside bottom of stand (9), and the top of threaded rod (1101) is installed and is compressed tightly rocking handle (1105), the surperficial threaded connection of threaded rod (1101) has screw block (1102), and one side of screw block (1102) installs depression bar (1104), indent (1103) is installed to the bottom of depression bar (1104) one side.

5. The single main beam cantilever crane of claim 4, wherein: the shape of the pressing groove (1103) is an inverted U-shaped shape, and the area of the inner cross section of the pressing groove (1103) is larger than that of the top end of the ground locking bolt (12).

6. The single main beam cantilever crane of claim 1, wherein: adjust structure (15) including spacing groove (1501), positive and negative lead screw (1502), regulation rocking handle (1503) and pole piece (1504), positive and negative lead screw (1502) transversely rotate and connect the inside at install bin (16), and positive and negative lead screw (1502) one side install and extend to the outside regulation rocking handle (1503) of install bin (16), install bin (16) internal thread of positive and negative lead screw (1502) surface both sides has pole piece (1504), and the bottom and couple (14) top fixed connection of pole piece (1504), spacing groove (1501) have transversely been seted up to the intermediate position department of install bin (16) bottom both sides.

7. The single main beam cantilever crane of claim 6, wherein: the width of limiting groove (1501) is equal to the width of top end of hook (14), and hook (14) and limiting groove (1501) are symmetrically distributed about the vertical central axis of installation box (16).