CN209853620U

CN209853620U - Stage crane device

Info

Publication number: CN209853620U
Application number: CN201920638685.0U
Authority: CN
Inventors: 贾广涛
Original assignee: Zhonghui Culture Communication (tianjin) Co Ltd
Current assignee: Zhonghui Culture Communication (tianjin) Co Ltd
Priority date: 2019-05-06
Filing date: 2019-05-06
Publication date: 2019-12-27
Anticipated expiration: 2029-05-06

Abstract

The utility model relates to the technical field of lifting equipment, in particular to a stage crane device, which effectively limits the retraction length of a stay wire by controlling the left-right movement distance of a nut, so that a suspended object can move in a controllable range, thereby preventing collision events and improving the safety and reliability; the left side of the top end of the base is connected with the bottom end of the left support plate, the upper side of the right end of the left support plate is connected with the left end of the pull rod, the upper side of the left end of the right support plate is connected with the right end of the pull rod, the right end of the speed reducer is connected with the left end of the left support plate, and the bottom end of the speed reducer is connected with the left side of the top end of the base; the automatic belt conveyor further comprises a limiting box, a second rotating shaft, a first gear, a second gear, a third rotating shaft, a screw rod, a first belt pulley and a belt.

Description

Stage crane device

Technical Field

The utility model relates to a lifting means's technical field especially relates to a stage loop wheel machine device.

Background

As is well known, a crane device is an auxiliary device for lifting and lowering an object, and is widely used in the field of lifting and lowering equipment; the prior crane device comprises a base, a right support plate, a left support plate, a pull rod, a speed reducer, a motor, a first rotating shaft and a wire wheel, wherein the right side of the top end of the base is connected with the bottom end of the right support plate, the left side of the top end of the base is connected with the bottom end of the left support plate, the upper side of the right end of the left support plate is connected with the left end of the pull rod, the upper side of the left end of the right support plate is connected with the right end of the pull rod, the right end of the speed reducer is connected with the left end of the top end of the base, the motor is arranged on the left side of the top end of the speed reducer, the upper input end of the speed reducer is communicated with the lower side output end of the motor, the left end of the first rotating shaft penetrates through the middle part of the left support plate and is connected with the right side output end of the speed reducer, the, the wire wheel is sleeved in the middle of the first rotating shaft through the first through hole and rotates synchronously with the first rotating shaft; when the existing crane device is used, firstly, the outer end of a stay wire wound on the outer wall of a wire wheel extends out and is connected with a suspended object outside the wire wheel, a motor is started, the motor drives a speed reducer to rotate in a forward direction through an output end at the lower side of the motor, the speed reducer drives a first rotating shaft to rotate in the forward direction through an output end at the right side, the first rotating shaft and the wire wheel rotate synchronously, the wire wheel conveys the stay wire wound on the outer wall of the wire wheel, the suspended object descends to a specified position through the stay wire, the motor is turned off, the suspended object stops moving, the motor drives the speed reducer to rotate in a reverse direction through the output end at the lower side of the motor, the first rotating shaft and the wire wheel rotate synchronously, the wire wheel recovers the stay wire wound on the outer wall of the wire wheel, the suspended; when the existing crane device is used, the motor controls the external hanging object to ascend and descend through the line wheel, the winding and unwinding length of the stay wire is not effectively limited, so that the hanging object is easy to collide with the ground when descending, and when the hanging object ascends, the top end of the hanging object is easy to collide with the crane body, so that the practicability and the reliability are poor.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a remove the distance through control nut and carry out effective restriction to the length that receive and releases of acting as go-between, make the hangings remove at controllable within range, prevent the bumping event, improve the loop wheel machine device of security and reliability.

The utility model relates to a stage crane device, which comprises a base, a right support plate, a left support plate, a pull rod, a speed reducer, a motor, a first rotating shaft and a wire wheel, wherein the right side of the top end of the base is connected with the bottom end of the right support plate, the left side of the top end of the base is connected with the bottom end of the left support plate, the upper side of the right end of the left support plate is connected with the left end of the pull rod, the upper side of the left end of the right support plate is connected with the right end of the pull rod, the right end of the speed reducer is connected with the left side of the top end of the base, the motor is arranged on the left side of the top end of the speed reducer, the upper side input end of the speed reducer is communicated with the lower side output end of the motor, the left end of the first rotating shaft passes through the middle part of the left support plate and is connected with the right side output end of the speed reducer, the wire wheel is sleeved in the middle of the first rotating shaft through the first through hole and rotates synchronously with the first rotating shaft; the device also comprises a limiting box, a second rotating shaft, a first gear, a second gear, a third rotating shaft, a screw rod, a first belt pulley and a belt, wherein a cavity is arranged in the limiting box, the left end of the cavity is communicated with and provided with an installation port, the right end of the limiting box is connected with the left end of a speed reducer, the right end of the second rotating shaft penetrates through the installation port and is connected with the left output end of the speed reducer, the left end of the second rotating shaft is rotatably connected with the left wall of the cavity, the middle part of the first gear is provided with a first through hole which is penetrated, the first gear is sleeved on the left side of the second rotating shaft through the first through hole, the second rotating shaft and the first gear rotate synchronously, the third rotating shaft is positioned below the second rotating shaft, the left end of the third rotating shaft is rotatably connected with the left wall of the cavity, the right end of the third rotating shaft penetrates through the installation port and is rotatably connected with the left end of the speed reducer, the second gear rotates synchronously with the third rotating shaft, the second gear is meshed with the first gear, the middle part of the first belt pulley is provided with a third through hole which penetrates through the left and the right, the first belt pulley is sleeved on the right side of the third rotating shaft through the third through hole, the first belt pulley rotates synchronously with the third rotating shaft, the screw rod is positioned below the third rotating shaft, the left end of the screw rod is rotatably connected with the left wall of the cavity, the right end of the screw rod passes through the mounting hole to be rotatably connected with the left end of the speed reducer, the right side of the screw rod is provided with a nut and a second belt pulley, the second belt pulley is positioned outside the right end of the nut, the nut is in threaded connection with the screw rod, the second belt pulley is fixedly connected with the screw rod and rotates synchronously, the first belt pulley and the second belt pulley can rotate synchronously through a belt, the lower part of the screw rod is provided with a slide rail, the left end of the, the outer wall of slide rail slidable is provided with the slider, and the top of slider is connected with the bottom of nut.

The utility model discloses a stage crane device, still include first clamp plate, first spring, fixed block, second spring and second clamp plate, first clamp plate is located the nut left end external world, the middle part of first clamp plate is provided with the fourth through-hole that runs through about, first clamp plate is through the fourth through-hole suit on the lead screw, first clamp plate and lead screw can slide relatively, the right-hand member of first spring is connected with the left end of first clamp plate, the left end of first spring is connected with the left wall of cavity, the fixed block is located the right-hand member external world of slider, the middle part of fixed block is provided with the fifth through-hole that runs through about, the fixed block is through the fifth through-hole suit on the slide rail, the fixed block is fixedly connected with the slide rail, the second clamp plate is located between fixed block and the slider, the middle part of second clamp plate is provided with the sixth through-hole that runs through about, the second clamp plate is through the sixth through-hole suit on the slide rail, the left end of the second spring is connected with the right end of the second pressing plate, and the right end of the second spring is connected with the left end of the fixed block.

The utility model discloses a stage loop wheel machine device still includes adjusting nut, and the front end intercommunication of fixed block is provided with the screw hole, and the rear end of screw hole and the front end intercommunication of fifth through-hole, adjusting nut's rear end pass through the front end screw in screw hole of fixed block and paste tightly with the front end of slide rail.

The utility model discloses a stage crane device still includes a body, and cavity front end intercommunication is provided with the maintenance mouth, and the rear end cap dress of the door body is at maintenance mouth front end, the left end of the door body and the front end left side rotatable coupling of spacing case, and the right-hand member of the door body passes through bolt-up with the front end right side of spacing case to be connected.

The utility model discloses a stage crane device, still include first bearing and first gland, the left end middle part intercommunication of left side extension board is provided with first bearing hole, the left end intercommunication in first bearing hole is provided with first jack, the left end and the external intercommunication of left extension board left end of first jack, the right-hand member that the left end of first bearing passes through left extension board stretches out to in the bearing hole, the left end outer lane of first bearing pastes tightly with the left wall of bearing hole, first pivot passes first bearing hole good and first jack stretches out to the left extension board left end external world and is connected with reduction gear right side output, be provided with about on the first gland and control the seventh through-hole that runs through, first gland passes through seventh through-hole suit in first pivot, the left end of first gland pastes tightly and is connected through bolt-up with the right-hand member of left extension board, the right-hand member of first bearing pastes tightly with the left end of first gland.

The utility model discloses a stage crane device, still include second gland, first lock mother, second bearing and second lock mother, the left end middle part intercommunication of right branch board is provided with the second bearing hole, the right-hand member intercommunication of second bearing hole is provided with the second jack, the right-hand member of second jack is with right branch board right-hand member external intercommunication, the second bearing stretches into in the second bearing hole through the left end of right branch board, the right-hand member outer lane of second bearing pastes tightly with the right-hand member of bearing hole, the middle part of second gland is provided with the eighth through-hole that runs through from left to right, the second gland is sheathed on first pivot through the eighth through-hole, the right-hand member of second gland passes through the bolt fastening with the left end of right branch board and is connected, the left end outer lane of second bearing pastes tightly with the right-hand member of second gland, the right side of first pivot is provided with the screw thread, the first pivot right-hand member passes second bearing hole and second jack and, the first lock nut and the second lock nut are both sleeved on the right side of the first rotating shaft in a threaded manner, the right end of the first lock nut is tightly attached to the inner ring at the left end of the second bearing, and the left end of the second lock nut is tightly attached to the inner ring at the right end of the second bearing.

The utility model discloses a stage loop wheel machine device still includes the safety cover, and the left end middle part intercommunication of safety cover has the protection mouth, and the right-hand member of first pivot stretches into to the protection mouth in through the left end of safety cover, and the left end of safety cover passes through bolt-up with the right-hand member middle part of right extension board to be connected.

The utility model discloses a stage crane device still includes fourth pivot and leading wheel, the left end of fourth pivot and the right-hand member lower part front side rotatable coupling of left extension board, the right-hand member of fourth pivot and the left end lower part front side rotatable coupling of right extension board are provided with the third jack that runs through about in the leading wheel, and the leading wheel passes through third jack suit in the fourth pivot, and the leading wheel rotates with the fourth pivot is synchronous.

Compared with the prior art, the beneficial effects of the utility model are that: when the motor outputs the pull wire through the wire wheel, the right output end and the left output end of the speed reducer synchronously rotate in the forward direction, the left output end of the speed reducer drives the second rotating shaft to rotate in the forward direction, the second rotating shaft drives the first gear to move in the forward direction, the first gear is meshed with the second gear, the first gear drives the second gear to rotate in the forward direction, the second gear drives the first belt pulley to rotate in the forward direction through the third rotating shaft, the first belt pulley drives the second belt pulley to rotate in the forward direction through the belt, the second belt pulley drives the screw rod to rotate in the forward direction, the bottom end of the nut is connected with the top end of the sliding block, the sliding block is slidably connected with the sliding rail, so that the movement direction of the nut is limited to be reciprocating movement in the left-right direction, the nut is connected with the screw rod in a threaded manner, the screw rod rotates in the forward direction to drive the nut, the second belt pulley stops the first belt pulley through a belt, the first belt pulley stops the second gear through a third rotating shaft, the second gear stops the second rotating shaft through the first gear, the right end of the second rotating shaft is connected with the left output end of the speed reducer, the second rotating shaft stops the speed reducer, the speed reducer stops the wire wheel through the first rotating shaft, the output work of the pull wire stops, and the suspended object stops descending; when the motor recovers the pull wire through the pulley, the right output end and the left output end of the speed reducer synchronously rotate reversely, the left output end of the speed reducer drives the second rotating shaft to rotate reversely, the second rotating shaft drives the first gear to move reversely, the first gear is meshed with the second gear, the first gear drives the second gear to rotate reversely, the second gear drives the first belt pulley to rotate reversely through the third rotating shaft, the first belt pulley drives the second belt pulley to rotate reversely through the belt, the second belt pulley drives the lead screw to rotate reversely, the lead screw rotates reversely to drive the nut to move rightwards, the nut stops moving and stops rotating the lead screw when the right end of the nut contacts with the left end of the second belt pulley, the lead screw drives the second belt pulley to stop rotating, the second belt pulley stops rotating the first belt pulley through the belt, and the first belt pulley stops rotating the second gear through the third rotating shaft, the second gear makes the second pivot stall through first gear, and second pivot right-hand member is connected with reduction gear left side output, and the second pivot makes reduction gear stall, and the reduction gear makes line wheel stall through first pivot, and the recovery work that acts as go-between stops, and the suspended object stops to rise, removes the distance through control nut and carries out effective restriction to the receipts and releases length of acting as go-between, makes the suspended object remove in controllable within range, prevents the collision incident, improves security and reliability.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic left side view of the structure of FIG. 1;

FIG. 3 is an enlarged schematic view of the stop box of FIG. 1;

FIG. 4 is an enlarged view of the second bearing of FIG. 1;

in the drawings, the reference numbers: 1. a base; 2. a right support plate; 3. a left support plate; 4. a pull rod; 5. a speed reducer; 6. a motor; 7. a first rotating shaft; 8. a wire wheel; 9. a limiting box; 10. a second rotating shaft; 11. a first gear; 12. a second gear; 13. a third rotating shaft; 14. a first platen; 15. a first spring; 16. a screw rod; 17. a first pulley; 18. a belt; 19. a nut; 20. a slide rail; 21. a slider; 22. a second pulley; 23. a fixed block; 24. a second spring; 25. a second platen; 26. adjusting the nut; 27. a door body; 28. a first bearing; 29. a first gland; 30. a second gland; 31. a first lock nut; 32. a second bearing; 33. a second lock nut; 34. a protective cover; 35. a fourth rotating shaft; 36. a guide wheel.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in fig. 1 to 4, the stage crane device of the present invention comprises a base 1, a right support plate 2, a left support plate 3, a pull rod 4, a speed reducer 5, a motor 6, a first rotating shaft 7 and a reel 8, wherein the right side of the top end of the base 1 is connected with the bottom end of the right support plate 2, the left side of the top end of the base 1 is connected with the bottom end of the left support plate 3, the upper side of the right end of the left support plate 3 is connected with the left end of the pull rod 4, the upper side of the left end of the right support plate 2 is connected with the right end of the pull rod 4, the right end of the speed reducer 5 is connected with the left end of the left support plate 3, the bottom end of the speed reducer 5 is connected with the left side of the top end of the base 1, the motor 6 is installed on the left side of the top end of the speed reducer 5, the upper input end of the speed reducer 5 is communicated with the lower output end of, the right end of the first rotating shaft 7 is rotatably connected with the middle part of the left end of the right support plate 2, a first through hole which penetrates through the left and right is formed in the middle of the wire wheel 8, the wire wheel 8 is sleeved in the middle of the first rotating shaft 7 through the first through hole, and the wire wheel 8 and the first rotating shaft 7 rotate synchronously; the device also comprises a limiting box 9, a second rotating shaft 10, a first gear 11, a second gear 12, a third rotating shaft 13, a screw rod 16, a first belt pulley 17 and a belt 18, wherein a cavity is arranged in the limiting box 9, the left end of the cavity is communicated with and provided with a mounting port, the right end of the limiting box 9 is connected with the left end of the speed reducer 5, the right end of the second rotating shaft 10 passes through the mounting port and is connected with the left output end of the speed reducer 5, the left end of the second rotating shaft 10 is rotatably connected with the left wall of the cavity, the middle part of the first gear 11 is provided with a first through hole which is penetrated, the first gear 11 is sleeved at the left side of the second rotating shaft 10 through the first through hole, the second rotating shaft 10 and the first gear 11 rotate synchronously, the third rotating shaft 13 is positioned below the second rotating shaft 10, the left end of the third rotating shaft 13 is rotatably connected with the left wall of the cavity, the right end of the third rotating shaft 13 passes through the mounting port, the second gear 12 is sleeved on the left side of a third rotating shaft 13 through a second through hole, the second gear 12 and the third rotating shaft 13 synchronously rotate, the second gear 12 is meshed with the first gear 11, a third through hole which penetrates through the left and the right is arranged in the middle of a first belt pulley 17, the first belt pulley 17 is sleeved on the right side of the third rotating shaft 13 through the third through hole, the first belt pulley 17 and the third rotating shaft 13 synchronously rotate, a screw rod 16 is positioned below the third rotating shaft 13, the left end of the screw rod 16 is rotatably connected with the left wall of a cavity, the right end of the screw rod 16 passes through a mounting hole to be rotatably connected with the left end of a speed reducer 5, a nut 19 and a second belt pulley 22 are arranged on the right side of the screw rod 16, the second belt pulley 22 is positioned outside the right end of the nut 19, the nut 19 is in threaded connection with the screw rod 16, the second belt pulley 22 is fixedly connected with the screw rod 16 and synchronously rotates, the first belt, a slide rail 20 is arranged below the screw rod 16, the left end of the slide rail 20 is connected with the left wall of the cavity, the slide rail 20 penetrates through the mounting hole and is connected with the lower side of the left end of the speed reducer 5, a slide block 21 is slidably arranged on the outer wall of the slide rail 20, and the top end of the slide block 21 is connected with the bottom end of the nut 19; when the motor outputs the pull wire through the wire wheel, the right output end and the left output end of the speed reducer synchronously rotate in the forward direction, the left output end of the speed reducer drives the second rotating shaft to rotate in the forward direction, the second rotating shaft drives the first gear to move in the forward direction, the first gear is meshed with the second gear, the first gear drives the second gear to rotate in the forward direction, the second gear drives the first belt pulley to rotate in the forward direction through the third rotating shaft, the first belt pulley drives the second belt pulley to rotate in the forward direction through the belt, the second belt pulley drives the screw rod to rotate in the forward direction, the bottom end of the nut is connected with the top end of the sliding block, the sliding block is slidably connected with the sliding rail, so that the movement direction of the nut is limited to be reciprocating movement in the left-right direction, the nut is connected with the screw rod in a threaded manner, the screw rod rotates in the forward direction to drive the nut, the second belt pulley stops the first belt pulley through a belt, the first belt pulley stops the second gear through a third rotating shaft, the second gear stops the second rotating shaft through the first gear, the right end of the second rotating shaft is connected with the left output end of the speed reducer, the second rotating shaft stops the speed reducer, the speed reducer stops the wire wheel through the first rotating shaft, the output work of the pull wire stops, and the suspended object stops descending; when the motor recovers the pull wire through the pulley, the right output end and the left output end of the speed reducer synchronously rotate reversely, the left output end of the speed reducer drives the second rotating shaft to rotate reversely, the second rotating shaft drives the first gear to move reversely, the first gear is meshed with the second gear, the first gear drives the second gear to rotate reversely, the second gear drives the first belt pulley to rotate reversely through the third rotating shaft, the first belt pulley drives the second belt pulley to rotate reversely through the belt, the second belt pulley drives the lead screw to rotate reversely, the lead screw rotates reversely to drive the nut to move rightwards, the nut stops moving and stops rotating the lead screw when the right end of the nut contacts with the left end of the second belt pulley, the lead screw drives the second belt pulley to stop rotating, the second belt pulley stops rotating the first belt pulley through the belt, and the first belt pulley stops rotating the second gear through the third rotating shaft, the second gear makes the second pivot stall through first gear, and second pivot right-hand member is connected with reduction gear left side output, and the second pivot makes reduction gear stall, and the reduction gear makes line wheel stall through first pivot, and the recovery work that acts as go-between stops, and the suspended object stops to rise, removes the distance through control nut and carries out effective restriction to the receipts and releases length of acting as go-between, makes the suspended object remove in controllable within range, prevents the collision incident, improves security and reliability.

The utility model discloses a stage crane device, still include first clamp plate 14, first spring 15, fixed block 23, second spring 24 and second clamp plate 25, first clamp plate 14 is located the outside of nut 19 left end, the middle part of first clamp plate 14 is provided with the fourth through-hole that runs through about, first clamp plate 14 is overlapped on lead screw 16 through the fourth through-hole, first clamp plate 14 and lead screw 16 can slide relatively, the right-hand member of first spring 15 is connected with the left end of first clamp plate 14, the left end of first spring 15 is connected with the left wall of cavity, fixed block 23 is located the outside of the right-hand member of slider 21, the middle part of fixed block 23 is provided with the fifth through-hole that runs through about, fixed block 23 is overlapped on slide rail 20 through the fifth through-hole, fixed block 23 and slide rail 20 fixed connection, second clamp plate 25 is located between fixed block 23 and slider 21, the middle part of second clamp plate 25 is provided with the sixth through-hole that runs through about, the second pressing plate 25 is sleeved on the slide rail 20 through a sixth through hole, the second pressing plate 25 and the slide rail 20 can slide relatively, the left end of the second spring 24 is connected with the right end of the second pressing plate 25, and the right end of the second spring 24 is connected with the left end of the fixed block 23; when the nut moves leftwards, the left end of the nut touches the right end of the first pressure plate, the nut drives the first pressure plate to move leftwards and compress the first spring, when the first spring is compressed to enough pressure, the first spring pushes the first pressure plate to stop moving, the first pressure plate drives the nut to stop moving, when the nut moves rightwards, the nut drives the sliding block to move rightwards, the right end of the sliding block touches the left end of the second pressure plate, the sliding block drives the second pressure plate to move rightwards and compress the second spring, when the second spring is compressed to enough pressure, the second spring pushes the second pressure plate to stop moving, the second pressure plate drives the sliding block to stop moving, the sliding block drives the nut to stop moving, when the nut moves leftwards, the first spring is arranged to slowly stop, the left end of the nut is prevented from generating hard collision with the left wall of the cavity, the component is prevented from being damaged, and when the nut moves, prevent that the nut right-hand member from taking place rigid collision with the left end of second belt pulley, prevent to harm the component, improve practicality and security.

The utility model discloses a stage crane device, still include adjusting nut 26, the front end of fixed block 23 communicates and is provided with the screw hole, the rear end of screw hole communicates with the front end of fifth through-hole, the rear end of adjusting nut 26 is screwed into the screw hole and is attached to the front end of slide rail 20 through the front end of fixed block 23; through setting up adjusting nut, can effectively fix the fixed block, prevent that fixed block and slide rail from taking place relative slip, loosen adjusting nut simultaneously, can control the fixed block, thereby the fixed block passes through the second spring and drives the second clamp plate and control the removal scope of moving the nut and adjust, and the length that receive and releases of acting as go-between obtains the adjustment, improves practicality and reliability.

The utility model discloses a stage crane device, still include the door body 27, the cavity front end intercommunication is provided with the maintenance mouth, the rear end cap dress of door body 27 is in the maintenance mouth front end, the left end of door body 27 and the front left side rotatable coupling of spacing case 9, the right-hand member of door body 27 and the front right side of spacing case 9 pass through bolt-up connection; the door body is opened, and the inner member in the cavity can be checked and maintained through the maintenance port, so that the practicability and the reliability are improved.

The utility model discloses a stage crane device, still include first bearing 28 and first gland 29, the left end middle part intercommunication of left branch board 3 is provided with first bearing hole, the left end intercommunication of first bearing hole is provided with first jack, the left end of first jack communicates with the left end external world of left branch board 3, the left end of first bearing 28 stretches out to in the bearing hole through the right-hand member of left branch board 3, the left end outer lane of first bearing 28 pastes tightly with the left wall of bearing hole, first pivot 7 passes first bearing 28 hole good and first jack stretches out to the left end external world of left branch board 3 and is connected with reduction gear 5 right side output, be provided with the seventh through-hole that runs through about on first gland 29, first gland 29 is on first pivot 7 through the seventh through-hole suit, the left end of first gland 29 pastes tightly and passes through bolt fastening with the right-hand member of left branch board 3, the right end outer lane of first bearing 28 pastes tightly with the left end of first gland 29; through setting up first bearing and first gland, it is more smooth and easy when making first pivot rotate, and frictional force reduces between first pivot and the left extension board, improves the practicality.

The utility model discloses a stage crane device, still include second gland 30, first lock nut 31, second bearing 32 and second lock nut 33, the left end middle part intercommunication of right branch board 2 is provided with the second bearing hole, the right-hand member intercommunication of second bearing hole is provided with the second jack, the right-hand member of second jack and right branch board 2 right-hand member external intercommunication, second bearing 32 stretches into in the second bearing hole through the left end of right branch board 2, the right-hand member outer lane of second bearing 32 pastes tightly with the right-hand member of bearing hole, the middle part of second gland 30 is provided with the eighth through-hole that runs through from left to right, second gland 30 is through eighth through-hole suit on first pivot 7, the right-hand member of second gland 30 passes through bolt-fastening with the left end of right branch board 2 and is connected, the left end outer lane of second bearing 32 pastes tightly with the right-hand member of second gland 30, the right side of first pivot 7 is provided with the screw thread, the right-hand member of first pivot 7 passes second bearing hole 32 and second jack and stretches out to, the first lock nut 31 and the second lock nut 33 are both arranged on the right side of the first rotating shaft 7 in a threaded and sleeved mode, the right end of the first lock nut 31 is attached to the inner ring of the left end of the second bearing 32, and the left end of the second lock nut 33 is attached to the inner ring of the right end of the second bearing 32; through setting up the second bearing, can make between first pivot and the right extension board relative rotation more smooth and easy, reduce frictional force between first pivot and the right extension board, improve the practicality, second gland, first lock are female and the second lock is female effectively to be fixed the second bearing simultaneously, improve the reliability.

The utility model discloses a stage crane device, still include safety cover 34, the middle part of the left end of safety cover 34 communicates with the guard aperture, the right-hand member of first pivot 7 stretches into the guard aperture through the left end of safety cover 34, the left end of safety cover 34 and the right-hand member middle part of right branch board 2 are connected through the bolt fastening; through setting up the safety cover, can effectively protect the second bearing right-hand member, prevent that impurity from getting into the second bearing, improve the practicality.

The utility model discloses a stage crane device, still include fourth pivot 35 and leading wheel 36, the left end of fourth pivot 35 and the right-hand member lower part front side rotatable coupling of left branch board 3, the right-hand member of fourth pivot 35 and the left end lower part front side rotatable coupling of right branch board 2, be provided with the third jack that runs through from side to side in the leading wheel 36, leading wheel 36 is in fourth pivot 35 through the third jack suit, leading wheel 36 and fourth pivot 35 rotate in step; through setting up fourth pivot and leading wheel, make the overlap joint of acting as go-between on the leading wheel outer wall, the acting as go-between drives the leading wheel rotation at receive and release in-process, prevents to act as go-between and base outer wall emergence friction, improves the reliability.

The utility model discloses a stage crane device, when it works, firstly, the outer end of a stay wire wound on the outer wall of a wire wheel is extended out and connected with a suspended object outside the wire wheel, a motor is turned on, the motor drives a speed reducer to rotate forward through the lower side output end of the motor, the speed reducer drives a first rotating shaft to rotate forward through the right side output end, the first rotating shaft and the wire wheel rotate synchronously, the wire wheel conveys the stay wire wound on the outer wall of the wire wheel, the right side output end and the left side output end of the speed reducer rotate synchronously and forward, the left side output end of the speed reducer drives a second rotating shaft to rotate forward, the second rotating shaft drives a first gear to move forward, the first gear is meshed with a second gear, the first gear drives a second gear to rotate forward, the second gear drives a first belt pulley to rotate forward through a third rotating shaft, the first belt pulley drives a second belt pulley to rotate forward through a, the bottom end of the nut is connected with the top end of the sliding block, the sliding block is slidably connected with the sliding rail, so that the movement direction of the nut is limited to be left-right reciprocating movement, the nut is connected with the screw rod in a threaded manner, the screw rod rotates forwards to drive the nut to move leftwards, the left end of the nut is contacted with the right end of the first pressing plate, the nut drives the first pressing plate to move leftwards and compress the first spring, when the first spring is compressed to be enough in pressure, the first spring pushes the first pressing plate to stop moving, the first pressing plate drives the nut to stop moving, the nut stops moving to drive the screw rod to stop rotating, the screw rod drives the second belt wheel to stop rotating, the second belt wheel stops rotating the first belt wheel through a belt, the first belt wheel stops rotating the second gear through a third rotating shaft, the second gear stops rotating the second rotating shaft through the first gear, the right end of the second rotating shaft is connected with the, the speed reducer stops the wire wheel from rotating through the first rotating shaft, the output work of the stay wire stops, and the suspension stops descending; turning on a motor, driving a speed reducer to reversely rotate through an output end at the lower side of the motor, driving a first rotating shaft to reversely rotate through an output end at the right side of the speed reducer, synchronously rotating the first rotating shaft and a wire wheel, recovering a pull wire wound on the outer wall of the wire wheel by the wire wheel, synchronously reversely rotating the right output end and the left output end of the speed reducer, driving a second rotating shaft to reversely rotate through an output end at the left side of the speed reducer, driving a first gear to reversely move by the second rotating shaft, meshing the first gear with a second gear, driving the second gear to reversely rotate by the first gear, driving a first belt pulley to reversely rotate by the second belt pulley through a belt, driving a lead screw to reversely rotate, driving a nut to move rightwards, driving a slide block by the nut, and touching the right end of the slide block with the left end of a second, the slider drives the second pressing plate to move rightwards and enables the second spring to be compressed, when the second spring is compressed to be enough in pressure, the second spring pushes the second pressing plate to stop moving and enables the screw rod to stop rotating, the screw rod drives the second belt pulley to stop rotating, the second belt pulley enables the first belt pulley to stop rotating through a belt, the first belt pulley enables the second gear to stop rotating through a third rotating shaft, the second gear enables the second rotating shaft to stop rotating through the first gear, the right end of the second rotating shaft is connected with the left output end of the speed reducer, the second rotating shaft enables the speed reducer to stop rotating, the speed reducer enables the wire wheel to stop rotating through the first rotating shaft, the wire pulling recovery work is stopped, and a suspended object stops rising.

The utility model discloses a stage crane device, its mounting means, connected mode or set up the mode and be common mechanical system, as long as can reach all can implement of its beneficial effect.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A stage crane device comprises a base (1), a right support plate (2), a left support plate (3), a pull rod (4), a speed reducer (5), a motor (6), a first rotating shaft (7) and a wire wheel (8), wherein the right side of the top end of the base (1) is connected with the bottom end of the right support plate (2), the left side of the top end of the base (1) is connected with the bottom end of the left support plate (3), the upside of the right end of the left support plate (3) is connected with the left end of the pull rod (4), the upside of the left end of the right support plate (2) is connected with the right end of the pull rod (4), the right end of the speed reducer (5) is connected with the left end of the left support plate (3), the bottom end of the speed reducer (5) is connected with the left side of the top end of the base (1), the motor (6) is arranged on the left side of the top end of the speed reducer (5), the upside input end of the speed reducer (5) is communicated with the lower side output end of the motor (, the left side of the first rotating shaft (7) and the left support plate (3) can rotate relatively, the right end of the first rotating shaft (7) is rotatably connected with the middle part of the left end of the right support plate (2), a first through hole penetrating left and right is formed in the middle of the wire wheel (8), the wire wheel (8) is sleeved in the middle of the first rotating shaft (7) through the first through hole, and the wire wheel (8) and the first rotating shaft (7) rotate synchronously; the device is characterized by further comprising a limiting box (9), a second rotating shaft (10), a first gear (11), a second gear (12), a third rotating shaft (13), a screw rod (16), a first belt pulley (17) and a belt (18), wherein a cavity is arranged in the limiting box (9), the left end of the cavity is communicated with a mounting port, the right end of the limiting box (9) is connected with the left end of the speed reducer (5), the right end of the second rotating shaft (10) penetrates through the mounting port to be connected with the left output end of the speed reducer (5), the left end of the second rotating shaft (10) is rotatably connected with the left wall of the cavity, a first through hole which is fully penetrated is arranged in the middle of the first gear (11), the first gear (11) is sleeved on the left side of the second rotating shaft (10) through the first through hole, the second rotating shaft (10) and the first gear (11) rotate synchronously, the third rotating shaft (13) is positioned below the second rotating shaft (10), and the left end of the third rotating shaft (13) is rotatably connected, the right end of a third rotating shaft (13) penetrates through the mounting hole to be rotatably connected with the left end of a speed reducer (5), a second through hole penetrating through the left and right is formed in a second gear (12), the second gear (12) is sleeved on the left side of the third rotating shaft (13) through the second through hole, the second gear (12) and the third rotating shaft (13) synchronously rotate, the second gear (12) is meshed with a first gear (11), a third through hole penetrating through the left and right is formed in the middle of a first belt pulley (17), a first belt pulley (17) is sleeved on the right side of the third rotating shaft (13) through the third through hole, the first belt pulley (17) and the third rotating shaft (13) synchronously rotate, a screw rod (16) is positioned below the third rotating shaft (13), the left end of the screw rod (16) is rotatably connected with the left wall of a cavity, the right end of the screw rod (16) penetrates through the mounting hole to be rotatably connected with the left end of the speed reducer (5), and a nut (19) and a second belt pulley (22), second belt pulley (22) are located the right-hand member of nut (19) external world, nut (19) are connected with lead screw (16) spiral shell dress, second belt pulley (22) and lead screw (16) fixed connection and synchronous rotation, but first belt pulley (17) and second belt pulley (22) pass through belt (18) synchronous rotation, the below of lead screw (16) is provided with slide rail (20), the left end and the cavity left wall of slide rail (20) are connected, the left end downside that passes installing port and reduction gear (5) of slide rail (20) is connected, the outer wall slidable of slide rail (20) is provided with slider (21), the top of slider (21) is connected with the bottom of nut (19).

2. A stage crane device as claimed in claim 1, further comprising a first pressing plate (14), a first spring (15), a fixing block (23), a second spring (24) and a second pressing plate (25), wherein the first pressing plate (14) is located outside the left end of the nut (19), a fourth through hole penetrating left and right is formed in the middle of the first pressing plate (14), the first pressing plate (14) is sleeved on the screw rod (16) through the fourth through hole, the first pressing plate (14) and the screw rod (16) can slide relatively, the right end of the first spring (15) is connected with the left end of the first pressing plate (14), the left end of the first spring (15) is connected with the left wall of the cavity, the fixing block (23) is located outside the right end of the slider (21), a fifth through hole penetrating left and right is formed in the middle of the fixing block (23), the fixing block (23) is sleeved on the slide rail (20) through the fifth through hole, fixed block (23) and slide rail (20) fixed connection, second clamp plate (25) are located between fixed block (23) and slider (21), the middle part of second clamp plate (25) is provided with about running through to sixth through-hole, second clamp plate (25) are on slide rail (20) through the sixth through-hole suit, but second clamp plate (25) and slide rail (20) relative slip, the left end of second spring (24) is connected with the right-hand member of second clamp plate (25), the right-hand member of second spring (24) is connected with the left end of fixed block (23).

3. A stage crane device as claimed in claim 2, further comprising an adjusting nut (26), wherein a threaded hole is provided in the front end of the fixing block (23), the rear end of the threaded hole is communicated with the front end of the fifth through hole, and the rear end of the adjusting nut (26) is screwed into the threaded hole through the front end of the fixing block (23) and abuts against the front end of the slide rail (20).

4. A stage crane device as claimed in claim 3, further comprising a door body (27), wherein the front end of the cavity is communicated with a maintenance opening, the rear end of the door body (27) is covered at the front end of the maintenance opening, the left end of the door body (27) is rotatably connected with the left side of the front end of the limit box (9), and the right end of the door body (27) is fixedly connected with the right side of the front end of the limit box (9) through a bolt.

5. A stage crane device as claimed in claim 4, further comprising a first bearing (28) and a first pressing cover (29), wherein the middle of the left end of the left support plate (3) is provided with a first bearing hole, the left end of the first bearing hole is provided with a first insertion hole, the left end of the first insertion hole is communicated with the outside of the left end of the left support plate (3), the left end of the first bearing (28) extends into the bearing hole through the right end of the left support plate (3), the left end outer ring of the first bearing (28) is tightly attached to the left wall of the bearing hole, the first rotating shaft (7) passes through the inner hole of the first bearing (28) and the first insertion hole extends to the outside of the left end of the left support plate (3) and is connected with the right output end of the speed reducer (5), the first pressing cover (29) is provided with a seventh through hole penetrating from left to right, the first pressing cover (29) is sleeved on the first rotating shaft (7) through the seventh through hole, the left end of the first pressing cover (29) is tightly attached to the right end of the left support plate (3) and is connected, the right outer ring of the first bearing (28) is tightly attached to the left end of the first gland (29).

6. The stage crane device as claimed in claim 5, further comprising a second gland (30), a first locking nut (31), a second bearing (32) and a second locking nut (33), wherein a second bearing hole is formed in the middle of the left end of the right support plate (2) in a communicating manner, a second insertion hole is formed in the right end of the second bearing hole in a communicating manner, the right end of the second insertion hole is in external communication with the right end of the right support plate (2), the second bearing (32) extends into the second bearing hole through the left end of the right support plate (2), the outer ring of the right end of the second bearing (32) is tightly attached to the right end of the bearing hole, an eighth through hole penetrating from left to right is formed in the middle of the second gland (30), the second gland (30) is sleeved on the first rotating shaft (7) through the eighth through hole, the right end of the second gland (30) is tightly attached to the left end of the right support plate (2) through a bolt, the outer ring of the left end of the second bearing (32) is tightly attached to the right end, the right side of first pivot (7) is provided with the screw thread, and first pivot (7) right-hand member passes second bearing (32) hole and second jack and stretches out to right branch board (2) right-hand member external world, and first lock is female (31) and the equal spiro union cover of second lock (33) is established on first pivot (7) right side, and the right-hand member of first lock (31) is pasted tightly with the left end inner circle of second bearing (32), and the left end of second lock (33) is pasted tightly with the right-hand member inner circle of second bearing (32).

7. A stage crane device as claimed in claim 6, further comprising a protective cover (34), wherein the middle of the left end of the protective cover (34) is communicated with a protective opening, the right end of the first rotating shaft (7) extends into the protective opening through the left end of the protective cover (34), and the left end of the protective cover (34) is fastened and connected with the middle of the right end of the right support plate (2) through a bolt.

8. A stage crane device as claimed in claim 7, further comprising a fourth shaft (35) and a guide wheel (36), wherein the left end of the fourth shaft (35) is rotatably connected to the front side of the lower portion of the right end of the left support plate (3), the right end of the fourth shaft (35) is rotatably connected to the front side of the lower portion of the left end of the right support plate (2), a third insertion hole penetrating left and right is formed in the guide wheel (36), the guide wheel (36) is sleeved on the fourth shaft (35) through the third insertion hole, and the guide wheel (36) and the fourth shaft (35) rotate synchronously.