CN120191839A - A suspended trolley for a bridge crane with downward rotation function - Google Patents
A suspended trolley for a bridge crane with downward rotation function Download PDFInfo
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- CN120191839A CN120191839A CN202510674945.XA CN202510674945A CN120191839A CN 120191839 A CN120191839 A CN 120191839A CN 202510674945 A CN202510674945 A CN 202510674945A CN 120191839 A CN120191839 A CN 120191839A
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- Prior art keywords
- rotating
- driving structure
- crane
- rectangular frame
- lifting
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C11/00—Trolleys or crabs, e.g. operating above runways
- B66C11/02—Trolleys or crabs, e.g. operating above runways with operating gear or operator's cabin suspended, or laterally offset, from runway or track
- B66C11/04—Underhung trolleys
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C11/00—Trolleys or crabs, e.g. operating above runways
- B66C11/08—Trolleys or crabs, e.g. operating above runways with turntables
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C9/00—Travelling gear incorporated in or fitted to trolleys or cranes
- B66C9/14—Trolley or crane travel drives
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
Abstract
The invention relates to a suspended trolley for a bridge crane with a lower rotation function, which belongs to the technical field of crane trolleys and comprises an operation mechanism, wherein the operation mechanism comprises a rectangular frame body and two rigid cylindrical chains respectively arranged on two cross beams of the crane trolleys, each corner end part of the rectangular frame body is provided with a rolling wheel which rolls down on a track, and the middle part of the rectangular frame body is provided with an operation driving structure matched with the two rigid cylindrical chains. Compared with the traditional mode that the running wheels roll on the track directly or are meshed with the gear and the rack, the abrasion can be effectively reduced, and the service life of high-precision operation is prolonged.
Description
Technical Field
The invention relates to the technical field of crane trolleys, in particular to a suspended trolley with a lower rotation function for a bridge crane.
Background
With the upgrading iteration of equipment and the automation requirement of a use field in recent years, the requirements of customers on the precision of a crane in the use process are higher and higher, the running limit position is larger and larger (namely, the running limit position is closer to a workshop wall body), and particularly, the requirements on the running and rotating precision, the horizontal dimension (smaller and better), the vertical dimension (lower and better) and the synchronism of double-point lifting of a crane trolley are met.
Existing crane trolleys with rotation function can be generally divided into three types:
The first is a rotary lifting hook mode, and the rotation of the lifted object is realized through the rotation function of the lifting hook, and the mode has the defects of low efficiency, poor stability and poor precision although the cost is low;
The second is that the upper rotary trolley, namely the rotary mechanism is arranged above the running mechanism, the mode has higher stability and efficiency, but has higher cost, and the height of the trolley is increased to be higher than that of the crane, so that the requirement of customers with high upper limit requirements can not be met;
The third is a lower rotary trolley, for example, a lower rotary electromagnetic bridge crane disclosed in chinese patent publication No. CN110304545B, the rotary mechanism includes an upper housing and a lower housing, a middle rod rotatably connected to the lower housing, and a driving wheel and a driving motor for driving the driving wheel to rotate are connected to the outer side of the middle rod in a manner of meshing with the outer gear ring through a gear, and the rotary mechanism has the defects of higher stability and efficiency, but higher horizontal size cost and higher cost.
For this reason, we have devised a suspended trolley for bridge cranes with a lower swivel function.
Disclosure of Invention
In order to overcome the defects in the background art, the invention discloses a suspended trolley with a lower rotation function for a bridge crane.
In order to achieve the aim of the invention, the invention adopts the following technical scheme:
a suspended trolley for a bridge crane having a lower rotation function, comprising:
the running mechanism comprises a rectangular frame body and two rigid cylindrical chains respectively arranged on two cross beams of the crane cart, rolling wheels rolling downwards on a track are arranged at each corner end part of the rectangular frame body, and a running driving structure matched with the two rigid cylindrical chains is arranged in the middle of the rectangular frame body;
the rotating mechanism is arranged below the rectangular frame body and comprises a fixed ring, a rigid conical chain ring and a rotating driving structure, and the rotating driving structure is matched with the rigid conical chain ring through two symmetrical conical chain wheels to realize a rotating function;
The lifting mechanism is arranged below the rotating mechanism and comprises a bracket, a lifting driving structure and two reels are arranged on the inner side of the bracket, and the two reels are synchronously driven by the lifting driving structure to unreel or roll the respective steel wire ropes, so that lifting operation of the hung object is completed.
Preferably, the operation driving structure comprises an operation motor, an operation brake and an operation speed reducer with two output shafts with the same steering and rotating speed, wherein the two output shafts of the operation speed reducer are connected with a positive sprocket through a rotating shaft, and the operation speed reducer is matched with a rigid cylindrical chain to realize a moving function.
Preferably, the rigid cylindrical chain comprises two straight support plates arranged at intervals, a plurality of first fixing pins are arranged between the two straight support plates along the length direction of the two straight support plates, and the first fixing pins are sleeved with cylindrical sleeves so as to reduce abrasion and prolong service life.
Preferably, the rotary driving structure comprises a rotary motor, a rotary brake and a commutator with two coaxial output shafts, wherein the two output shafts of the commutator are connected with conical chain wheels through rotating shafts, and the rotary driving structure is matched with the rigid conical chain rings to realize a rotary function.
The rotating mechanism further comprises two arc-shaped mounting seats symmetrically arranged on two sides of the fixed ring, wherein two sides of the top of the arc-shaped mounting seats are respectively provided with a lower pressing wheel which is downwards rolled on the top surface of the lower edge part of the fixed ring and a side pressing wheel which is laterally rolled on the side wall surface of the lower edge part of the fixed ring.
Preferably, the rigid conical chain ring comprises two concentric annular support plates, and a second fixing pin arranged along the radial direction is axially arranged between the two annular support plates, and the second fixing pin is sleeved with a conical sleeve so as to reduce abrasion and improve service life.
Preferably, the taper of the conical sleeve is 1.3 degrees.
Preferably, the two ends of the steel wire rope are respectively wound and fixed on the two ends of the corresponding winding drum, and the middle part of the steel wire rope stretches out and bypasses the movable pulley block on the lifting appliance and then bypasses the fixed pulley block at the bottom of the bracket.
Preferably, the rotary driving structure is correspondingly positioned inside the fixed ring.
Preferably, a laser range finder is arranged in the middle of the rectangular frame body and is used for measuring data in real time and adjusting an operation driving structure, so that the operation precision is further improved;
The lifting mechanism top surface is equipped with plane rotation angle sensor for real-time supervision rotation angle, and according to monitoring result adjustment rotary drive structure, guarantee rotation angle's accuracy.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
1. The running mechanism is driven by adopting a mode of matching the rigid cylindrical chain with the positive chain wheel, and the rotating function is realized by adopting a mode of matching the conical chain wheel with the rigid conical chain ring, so that the running distance difference caused by the inner diameter and the outer diameter in the rotating process is effectively compensated by matching the conical chain wheel with the rigid conical chain ring, and the high precision and the synchronism of the two sides of the running mechanism in the moving process are ensured. Compared with the traditional mode of directly rolling the running wheels on the track, the running control method can effectively stop the slipping phenomenon of the wheels and the matched plane, improve the running control precision, effectively reduce the abrasion and prolong the service life of high-precision running;
2. the inside design of the fixed ring has the cavity to be used for holding rotating electrical machines, rotation stopper and commutator for whole rotary mechanism's height greatly reduced, and then reduced holistic vertical dimension.
3. The rotating mechanism adopts a matching mode of the conical chain wheel and the rigid conical chain ring to realize the rotating function, and meanwhile, the vertical rolling wheel and the lateral rolling wheel are configured to ensure the stable rotation of the fixed ring, so that the stability and the working efficiency of the rotating mechanism are enhanced, the abrasion is reduced, and the service life is prolonged.
4. The first fixing pin and the second fixing pin are respectively sleeved with the cylindrical sleeve and the conical sleeve, so that abrasion between the first fixing pin and the positive chain wheel and abrasion between the first fixing pin and the conical chain wheel is reduced, and only part of the sleeve can be replaced after abrasion, so that maintenance cost is reduced. In addition, the design of using 90 degrees commutators reduces the model of the fittings, further reducing the cost of spare parts.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the structure of the running drive structure and rigid cylindrical chain of the present invention;
FIG. 3 is an enlarged view of part I of FIG. 2;
FIG. 4 is a schematic diagram of the operation driving structure of the present invention;
FIG. 5 is a schematic diagram of the running mechanism and the rotating mechanism according to the present invention;
FIG. 6 is a schematic view of the structure of the stationary ring, rigid tapered link and rotary drive structure of the present invention;
FIG. 7 is a schematic view of a partial explosion of a rigid tapered link according to the present invention;
FIG. 8 is a schematic view of a tapered sprocket of the present invention;
FIG. 9 is a schematic view of an arc mount according to the present invention;
FIG. 10 is a schematic diagram of a rotary drive structure according to the present invention;
FIG. 11 is a schematic diagram of a rotary mechanism and a lifting mechanism according to the present invention;
FIG. 12 is a schematic diagram of a lifting drive structure according to the present invention;
Fig. 13 is a schematic diagram of the principle of rope winding of the steel wire rope according to the present invention.
In the figure, 1, an operating mechanism, 11, a rectangular frame body, 12, a rigid cylindrical chain, 121, a straight supporting plate, 122, a first fixing pin, 123, a cylindrical sleeve, 13, a rolling wheel, 14, an operating driving structure, 141, an operating motor, 142, an operating brake, 143, an operating speed reducer and 144, a positive sprocket;
2. the device comprises a rotating mechanism, a fixing ring, a 22, a rigid conical chain ring, a 221, an annular supporting plate, a 222, a second fixing pin, a 223, a conical sleeve, a 23, an arc-shaped mounting seat, a 24, a lower pressing wheel, a 25, a side pressing wheel, a 26, a rotating motor, a 27, a rotating brake, a 28, a reverser, a 29 and a conical chain wheel;
3. 31, a bracket, 32, a lifting motor, 33, a lifting brake, 34, a lifting speed reducer, 35, a winding drum, 36, a steel wire rope, 37, a lifting appliance, 38, a fixed pulley block, 39 and a movable pulley block.
Detailed Description
The present application will be explained in detail by the following examples, and the purpose of the present application is to protect all technical improvements within the scope of the present application, and in the description of the present application, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "left", "right", etc. corresponding to the drawings of the present application, for convenience of description of the present application, it should be understood that if there is an orientation or positional relationship indicated by terms such as "end", "side", "transverse", "longitudinal", etc. corresponding to the length and width of the corresponding component, that is, "end" indicates the head and tail region in the length direction of the corresponding component, and "side" indicates the head and tail region in the width direction of the corresponding component, for convenience of description of the present application, it should not be indicated or implied that the apparatus or element referred to must have a specific orientation.
In a first embodiment, referring to fig. 1-13, a suspension trolley for a bridge crane with a lower rotation function includes an operating mechanism 1, a rotating mechanism 2 and a lifting mechanism 3 which are sequentially distributed from top to bottom. Specifically, the centers of gravity and/or centers of the running mechanism 1, the rotating mechanism 2 and the lifting mechanism 3 are located on the same vertical line.
In use, the running mechanism 1 is movably matched with the crane cart.
The running mechanism 1 comprises a rectangular frame body 11 and a rigid cylindrical chain 12, wherein rolling wheels 13 rolling on a track are arranged at each corner end part of the rectangular frame body 11, the number of the rigid cylindrical chain 12 is two, the rigid cylindrical chain 12 is respectively arranged on two cross beams of a crane cart, and a running driving structure 14 matched with the two rigid cylindrical chains 12 is arranged in the middle of the rectangular frame body 11.
Each corner end of the rectangular frame 11 is provided with two rolling wheels 13 arranged in mirror image according to the requirement. Preferably, the rolling wheel 13 is arranged on the top surface of the rectangular frame 11, so that the running mechanism 1 is arranged below the crane cart beam, the top of the suspended trolley is not higher than the crane cart, the height of the crane cart can be limited, the running safety coefficient of the crane cart and the crane cart is ensured, and the crane cart are prevented from colliding with a workshop roof.
The operation driving structure 14 comprises an operation motor 141, an operation brake 142 and an operation speed reducer 143 with two output shafts which turn to and rotate at the same speed, wherein the two output shafts of the operation speed reducer 143 are connected with a positive sprocket 144 through a rotating shaft, and the operation of the operation mechanism 1 is realized through the cooperation of the positive sprocket 144 and the rigid cylindrical chain 12. This arrangement ensures the accuracy of the operation of the running mechanism 1 and the synchronicity of both sides, since the positive sprocket 144 cooperates with the rigid cylindrical chain 12 and the running power positions of the running mechanism 1 are symmetrically distributed.
It should be noted that, the assembly modes of the operation motor 141, the operation brake 142 and the operation decelerator 143 are only required to be those in the prior art, and will not be described herein.
The rigid cylindrical chain 12 includes two straight support plates 121 disposed at intervals, and the two straight support plates 121 are each provided with a plurality of mounting holes for mounting the first fixing pins 122 along the length direction thereof.
When the two ends of the first fixing pin 122 are fixedly connected to the corresponding mounting holes, in order to reduce the abrasion with the front sprocket 144, a cylindrical sleeve 123 is sleeved at the position between the two straight supporting plates 121 of the first fixing pin 122. Compared with the prior art in which the running wheel directly rolls on the track to drive the running mechanism 1, the running mechanism can effectively stop the slipping phenomenon of the wheel and the matched plane, improve the running precision, effectively reduce the abrasion between the gear and the rack to prolong the service life, ensure long-time high-precision running, and only replace part of the cylinder sleeve 123 after abrasion, thereby reducing the replacement and maintenance cost.
The track is arranged along the length direction of the cross beam of the crane cart, belongs to the prior art, and the structure and the installation mode of the track are not repeated here.
According to the requirement, the top of the rectangular frame 11 can be provided with a laser range finder, one end of the crane cart is provided with a fixed light target, and the running motor 141 is adjusted by real-time measurement data of the laser range finder, so that the running accuracy of the running mechanism 1 is further improved.
The rotating mechanism 2 comprises a fixed ring 21 arranged on the bottom surface of the rectangular frame 11, and a rigid conical chain ring 22 is arranged on the lower end surface of the fixed ring 21.
The center of gravity of the fixing ring 21 is located on the same vertical line as the center of gravity of the rectangular frame 11 as needed. For better mounting of the fixing ring 21, the rectangular frame body 11 is preferably a square frame.
Further, the bottom section of the fixing ring 21 is inverted T-shaped, for example, the section of the fixing ring 21 is I-shaped.
The rotating mechanism 2 further comprises two arc-shaped mounting seats 23 symmetrically arranged on two sides of the fixed ring 21, wherein two sides of the top of the arc-shaped mounting seats 23 are respectively provided with a lower pressing wheel 24 which is downwards rolled on the top surface of the lower edge part of the fixed ring 21 and a side pressing wheel 25 which is laterally rolled on the side wall surface of the lower edge part of the fixed ring 21.
The arc-shaped mounting seat 23 can be correspondingly positioned on the outer side of the rigid conical chain ring 22 when the side pressing wheel 25 is rolled on the outer side wall surface of the lower edge part of the fixed ring 21, and can be correspondingly positioned on the inner side of the rigid conical chain ring 22 when the side pressing wheel 25 is rolled on the inner side wall surface of the lower edge part of the fixed ring 21.
The rotary mechanism 2 further comprises a rotary driving structure, the rotary driving structure comprises a rotary motor 26, a rotary brake 27 and a commutator 28 with two coaxial output shafts, the two output shafts of the commutator 28 are opposite in direction, and are connected with conical chain wheels 29 through rotating shafts, and the rotary mechanism 2 is operated through the cooperation of the conical chain wheels 29 and the rigid conical chain links 22. This arrangement ensures the accuracy of the operation of the rotary mechanism 2 and the synchronicity of the two sides, since the tapered sprocket 29 cooperates with the rigid tapered chain ring 22 and the operating dynamics of the rotary mechanism 2 are symmetrically distributed. Meanwhile, the inner side of the fixed ring 21 is provided with a cavity, and the rotating motor 26, the rotating brake 27 and the commutator 28 can be accommodated, so that the rotating motor 26, the rotating brake 27 and the commutator 28 do not occupy vertical space additionally, the height of the whole rotating mechanism 2 is effectively reduced, the purpose of compact structure is achieved, the unit stress of the rotating mechanism 2 is clearer, and the calculation, the overhaul and the maintenance of the stress piece of the rotating mechanism 2 are facilitated.
It should be noted that the tapered sprocket 29 is understood to be a sprocket having a tapered shape that engages the tapered gap between two adjacent tapered sleeves 223.
Further, the 90-degree commutator 28 is adopted in the commutator 28, so that the gears corresponding to the two output shafts of the commutator 28 and the gears corresponding to the input shafts are the same, which is beneficial to reducing the number of accessories and the cost of spare parts.
It should be noted that, the assembly manners of the rotating motor 26, the rotating brake 27 and the commutator 28 are all those in the prior art, and will not be described herein.
The rigid conical chain ring 22 comprises two concentric annular support plates 221, both annular support plates 221 being provided with a plurality of mounting holes in their circumferential direction for fixedly mounting the second fixing pins 222, which mounting holes are arranged radially along the annular support plates 221.
If necessary, in order to reduce wear with the front sprocket 144, a tapered sleeve 223 is provided around the second fixing pin 222 at a position between the two annular support plates 221. Compared with the prior art that the running mechanism 1 is driven by the way that the gears are meshed with the outer gear ring, the running mechanism can effectively reduce abrasion, prolong the service life, ensure long-time high-precision running and horizontal dimension, only replace part of the conical sleeve 223 after abrasion, reduce replacement and maintenance costs, and realize the function of long-time high-precision running by matching with the design that the cavity of the fixed ring 21 accommodates the rotating motor 26, the rotating brake 27 and the commutator 28.
The annular supporting plate 221, the rotating motor 26, the rotating brake 27 and the reverser 28 are fixedly arranged on the top surface of the lifting mechanism 3.
According to the requirement, the top surface of the lifting mechanism 3 is also provided with a plane rotation angle sensor, the rotation angle of the lifting mechanism 3 is monitored in real time through the plane rotation angle sensor, the rotating motor 26 is adjusted in real time according to the monitoring result, and the accuracy of the rotation angle is ensured.
The lifting mechanism 3 comprises a bracket 31 with an annular supporting plate 221, a rotating motor 26, a rotating brake 27 and a commutator 28 arranged at the top, a winding drum 35 and a lifting driving structure are arranged on the inner side of the bracket 31, wherein the lifting driving structure comprises a lifting motor 32, a lifting brake 33 and a lifting speed reducer 34 which are mutually connected, the lifting speed reducer 34 is provided with two output shafts with the same rotation speed, the two output shafts are connected with the winding drum 35, and specifically, the two output shafts of the lifting speed reducer 34 can be turned identically or inversely.
It should be noted that, the assembly modes of the lifting motor 32, the lifting brake 33 and the lifting speed reducer 34 are all the assembly modes in the prior art, and are not repeated here.
Each winding drum 35 is correspondingly wound with a steel wire rope 36, wherein two ends of the steel wire rope 36 are respectively wound and fixed at two ends of the winding drum 35, and the middle part of the steel wire rope 36 extends out and bypasses a movable pulley block 39 on a lifting appliance 37 and then bypasses a fixed pulley block 38 at the bottom of the bracket 31. That is, one end of the wire rope 36 is fixed to a corresponding section of the reel 35, and the other end is wound around the section of the reel 35 in sequence, and then sequentially wound around the movable pulley block 39 on the hanger 37, the fixed pulley block 38 at the bottom of the bracket 31, the movable pulley block 39 on the hanger 37, and wound around another section of the reel 35 and then fixedly connected to the reel 35.
The invention has not been described in detail in the prior art, it is obvious to those skilled in the art that the invention is not limited to the details of the above-described exemplary embodiments and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics thereof, and therefore, the embodiments are to be considered in all respects as illustrative and not restrictive, and all changes coming within the meaning and range of equivalency are intended to be embraced therein.
Claims (10)
1. A suspended trolley for a bridge crane having a lower rotation function, comprising:
the running mechanism (1) comprises a rectangular frame body (11) and two rigid cylindrical chains (12) which are respectively arranged on two cross beams of the crane cart, rolling wheels (13) which roll downwards on a track are arranged at each corner end part of the rectangular frame body (11), and a running driving structure (14) which is matched with the two rigid cylindrical chains (12) is arranged in the middle of the rectangular frame body;
The rotating mechanism (2) is arranged below the rectangular frame body (11) and comprises a fixed ring (21), a rigid conical chain ring (22) and a rotating driving structure, wherein the rotating driving structure is matched with the rigid conical chain ring (22) through two symmetrical conical chain wheels (29) to realize a rotating function;
The lifting mechanism (3) is arranged below the rotating mechanism (2) and comprises a bracket (31), a lifting driving structure and two reels (35) are arranged on the inner side of the bracket (31), and the two reels (35) are synchronously driven by the lifting driving structure to unreel or roll the respective steel wire ropes (36) so as to finish lifting operation of a hung object.
2. The overhead traveling crane suspended trolley with the lower rotating function according to claim 1, wherein the operation driving structure (14) comprises an operation motor (141), an operation brake (142) and an operation speed reducer (143) with two output shafts which turn to and rotate at the same speed, and the two output shafts of the operation speed reducer (143) are connected with a positive sprocket (144) through a rotating shaft, and the operation speed reducer is matched with a rigid cylindrical chain (12) to realize the moving function.
3. The overhead traveling crane suspended trolley with a lower rotating function according to claim 1, wherein the rigid cylindrical chain (12) comprises two straight supporting plates (121) arranged at intervals, a plurality of first fixing pins (122) are installed between the two straight supporting plates (121) along the length direction of the two straight supporting plates, and the first fixing pins (122) are sleeved with cylindrical sleeves (123) so as to reduce abrasion and improve service life.
4. The suspended trolley with the lower rotating function for the bridge crane according to claim 1, wherein the rotating driving structure comprises a rotating motor (26), a rotating brake (27) and a reverser (28) with two coaxial output shafts, wherein the two output shafts of the reverser (28) are connected with conical chain wheels (29) through rotating shafts, and the rotating driving structure is matched with the rigid conical chain ring (22) to realize the rotating function.
5. The suspended trolley with the lower rotating function for the bridge crane, which is disclosed in claim 1, is characterized in that the bottom section of the fixed ring (21) is of an inverted T shape, the rotating mechanism (2) further comprises two arc-shaped mounting seats (23) symmetrically arranged on two sides of the fixed ring (21), and two sides of the top of the arc-shaped mounting seats (23) are respectively provided with a lower pressing wheel (24) which is downwards rolled on the top surface of the lower edge part of the fixed ring (21) and a side pressing wheel (25) which is laterally rolled on the side wall surface of the lower edge part of the fixed ring (21).
6. The overhead traveling crane suspension type trolley with the lower rotating function according to claim 1, wherein the rigid conical chain ring (22) comprises two concentric annular supporting plates (221), a second fixing pin (222) arranged along the radial direction is axially arranged between the two annular supporting plates (221), and a conical sleeve (223) is sleeved on the second fixing pin (222) so as to reduce abrasion and improve service life.
7. The overhead travelling crane suspension truck with a lower turning function according to claim 6, wherein the taper of the taper sleeve (223) is 1.3 degrees.
8. The suspended trolley with the lower rotating function for the bridge crane according to claim 1, wherein the two ends of the steel wire rope (36) are respectively wound and fixed at the two ends of the corresponding winding drum (35), and the middle part of the steel wire rope stretches out and bypasses a movable pulley block (39) on a lifting appliance (37) and then bypasses a fixed pulley block (38) at the bottom of the bracket (31).
9. The overhead travelling crane suspended trolley with a lower rotating function according to claim 1, wherein the rotary driving structure is correspondingly positioned on the inner side of the fixed ring (21).
10. The suspended trolley with the lower rotation function for the bridge crane, which is disclosed in claim 1, is characterized in that a laser range finder is arranged in the middle of the rectangular frame body (11) and is used for measuring data in real time and adjusting an operation driving structure (14), so that the operation precision is further improved;
The top surface of the lifting mechanism (3) is provided with a plane rotation angle sensor for monitoring the rotation angle in real time, and adjusting the rotation driving structure according to the monitoring result, so that the accuracy of the rotation angle is ensured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510674945.XA CN120191839A (en) | 2025-05-23 | 2025-05-23 | A suspended trolley for a bridge crane with downward rotation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510674945.XA CN120191839A (en) | 2025-05-23 | 2025-05-23 | A suspended trolley for a bridge crane with downward rotation function |
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| CN120191839A true CN120191839A (en) | 2025-06-24 |
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| CN202510674945.XA Pending CN120191839A (en) | 2025-05-23 | 2025-05-23 | A suspended trolley for a bridge crane with downward rotation function |
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Application publication date: 20250624 |