CN112158749A

CN112158749A - Cable anti-stall device for vehicle-mounted crane

Info

Publication number: CN112158749A
Application number: CN202011049876.7A
Authority: CN
Inventors: 郑江豪; 李丹贝; 吴嘉美
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-29
Filing date: 2020-09-29
Publication date: 2021-01-01

Abstract

The invention relates to the technical field of cranes and discloses a mooring rope anti-stall device for a vehicle-mounted crane, which comprises a suspension arm and a rolling shaft, wherein the outer part of the suspension arm is fixedly connected with a fixed seat; through the davit, the roller bearing, a fixed base, slide rail one, the slide bar, the connecting rod, the clamp plate, the briquetting, under the interact between the hydraulic stem, can make on-vehicle loop wheel machine when the in-process of handling goods takes place hawser fracture or the malfunctioning condition of loop wheel machine, the stall rotation will take place under the left and right sides of hawser motion for the roller bearing, and then just can make the speed reduction to brake piece and hawser contact under the effect of response structure, just so can realize the effect that the hawser slows down under the effect of the piece of stopping slowing down, and then will avoid hawser and goods to take place the stall motion and cause unnecessary loss of property and the condition emergence of threatening personnel's safety.

Description

Cable anti-stall device for vehicle-mounted crane

Technical Field

The invention relates to the technical field of cranes, in particular to a cable anti-stall device for a vehicle-mounted crane.

Background

The vehicle-mounted crane generally refers to a tire crane, and the tire crane is mainly characterized in that a driving cab and a hoisting control cab are combined into a whole, the defect that a track plate of a crawler crane damages a road surface is overcome, and the vehicle-mounted crane belongs to material handling machinery.

The vehicle-mounted crane is generally provided with an extensible telescopic arm and a cable for pulling goods, the cable is generally required to be arranged outside a fixed pulley at one end, far away from a vehicle body, of the telescopic arm, so that the purpose of lifting the goods is achieved, however, the conventional vehicle-mounted crane lacks a safety device, namely, when the cable is broken or the crane fails in the process of lifting the goods, the goods can stall and descend, and the cable can move at a high speed under the action of gravity of the goods, and the vehicle-mounted crane cannot well limit speed and protect the cable and the goods, so that unnecessary economic loss and personal safety of personnel are possibly threatened.

Therefore, in response to these problems, a need exists for a cable anti-stall device for a truck mounted crane.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a cable anti-deceleration device for a vehicle-mounted crane, which has the advantage of timely limiting the speed when the cable is stalled, and solves the problems that when the cable is broken or the crane fails in the process of lifting goods by the vehicle-mounted crane, the goods can stall and descend, and the cable can move at a high speed under the action of the gravity of the goods, and at the moment, the vehicle-mounted crane has no way of well limiting the speed of the cable and the goods, so that unnecessary economic loss is possibly caused, and the personal safety of personnel is threatened.

(II) technical scheme

In order to achieve the purpose of timely limiting the speed of the mooring rope when the mooring rope stalls, the invention provides the following technical scheme: the utility model provides a hawser stall prevention device for on-vehicle loop wheel machine, including davit and roller bearing, the outside fixedly connected with fixing base of davit, the outside fixedly connected with slide rail I of fixing base, the inboard swing joint of slide rail I has the slide bar, the outside swing joint of slide bar has the connecting rod, the outside fixedly connected with clamp plate of slide bar, the outside fixedly connected with briquetting of clamp plate, the outside fixedly connected with hydraulic stem of slide rail I, the inside fixedly connected with of roller bearing has the lug, the outside swing joint of lug has the movable rod, the inboard fixedly connected with connecting rod of movable rod, the inboard fixedly connected with slide rail II of movable rod, the inside fixedly connected with N utmost point of slide rail II, the inside fixedly connected with S utmost point of slide rail II, the one end swing joint that.

Preferably, roller bearing swing joint has been seted up the spout in the inside of fixing base, the surface of fixing base, the inboard swing joint of spout has the slider, the one end swing joint of connecting rod is in the outside of slide bar, its other end swing joint is in the outside of slider, the one end fixed connection of hydraulic stem is in the outside of slide rail one, its other end swing joint is in the outside of slider, the outside swing joint of slide rail one has spring one, the one end swing joint that slide rail one was kept away from to spring one is in the outside of slider, spring one swing joint is in the outside of hydraulic stem.

Preferably, the outside fixedly connected with of fixing base is no less than four slide rails one, the corresponding slide bar in two positions of the outside fixedly connected with of clamp plate, the corresponding briquetting in two positions of the outside fixedly connected with of clamp plate, the specification of two briquettings and the specification phase-match of fixing base and roller bearing, one side fixedly connected with that the briquetting is close to the roller bearing slows down and stops the piece, the outside swing joint of roller bearing has the hawser, the specification of the piece of slowing down and stopping and the specification phase-match of hawser.

Preferably, at least three induction grooves are formed in the roller, and the induction grooves are uniformly distributed in the roller.

Preferably, lug fixed connection is in the one side that the induction groove is close to the roller bearing axle center, the outside fixedly connected with friction disc of lug, slide swing joint is in the inboard in induction groove, the outside swing joint of slide has two corresponding movable rods in position, one side swing joint that the slide was kept away from to the movable rod is in the outside of friction disc, movable rod swing joint is in the inboard in induction groove, the inboard swing joint of movable rod has spring two, the both ends difference swing joint of spring two is in the inboard of two movable rods, when the roller bearing stall rotates, the centrifugal force that the slide receives will be greater than the frictional force between friction disc and the movable rod, spring two under the initial condition is in the extension state.

Preferably, the specification of the N pole is matched with that of the S pole, the two are corresponding to the position inside the second sliding rail, the connecting rod is movably connected to the inner side of the second sliding rail, one end, close to the second sliding rail, of the connecting rod is fixedly connected with a copper bar, the specification of the copper bar is matched with the specifications of the N pole and the S pole, and the second sliding rail and the connecting rod are made of non-metal insulating materials.

Preferably, the hydraulic rod, the copper bar and the external power supply are all electrically connected with the control center, and the hydraulic rod is electrically connected with the external power supply.

(III) advantageous effects

Compared with the prior art, the invention provides a cable anti-stall device for a vehicle-mounted crane, which has the following beneficial effects:

1. this a hawser anti-stall device for on-vehicle loop wheel machine, through the davit, the roller bearing, a fixed base, slide rail one, the slide bar, the connecting rod, the clamp plate, the briquetting, under the interact between the hydraulic stem, can make on-vehicle loop wheel machine when the in-process emergence hawser fracture of handling goods or the condition that the loop wheel machine is out of order, the stall rotation will take place under the left and right sides of hawser motion for the roller bearing, and then just can make speed reduction brake piece and hawser contact under the effect of response structure, just can realize the effect that the hawser slows down like this under the effect of speed reduction brake piece, and then will avoid hawser and goods stall to take place the condition that the motion led to the fact unnecessary loss of property and.

2. This a hawser anti-stall device for on-vehicle loop wheel machine, through roller bearing, lug, movable rod, connecting rod, slide rail two, the N utmost point, the S utmost point, under the interact between the slide, can be so that the response structure of this device can not triggered the start in the normal pivoted of roller bearing, only can just can start the response structure when the stall pivoted takes place for the roller bearing, and then starts reduction gears, guaranteed the use under this device more is fit for actual situation like this.

Drawings

FIG. 1 is a schematic partial cross-sectional view of the inventive structure;

FIG. 2 is a schematic view showing the connection structure between the roller, the bump, the movable rod and the slider according to the present invention;

FIG. 3 is a schematic view of the structure of FIG. 2 at A according to the present invention;

FIG. 4 is a schematic view of the connection relationship among the roller, the fixing base, the pressing plate and the pressing block according to the present invention;

FIG. 5 is a schematic structural diagram of the connection relationship among the fixed seat, the first slide rail, the slide rod, the connecting rod, the pressing plate, the pressing block and the hydraulic rod.

In the figure: 1. a suspension arm; 2. a roller; 3. a fixed seat; 4. a first slide rail; 5. a slide bar; 6. a connecting rod; 7. Pressing a plate; 8. briquetting; 9. a hydraulic lever; 10. a bump; 11. a movable rod; 12. a connecting rod; 13. a second slide rail; 14. an N pole; 15. an S pole; 16. a slide board.

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 a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, a cable anti-stall device for a vehicle-mounted crane comprises a boom 1 and a roller 2, wherein at least three induction slots are arranged in the roller 2, and the induction slots are uniformly distributed in the roller 2; the outside fixedly connected with fixing base 3 of davit 1, the outside fixedly connected with of fixing base 3 has slide rail 4, the inboard swing joint of slide rail 4 has slide bar 5, the outside swing joint of slide bar 5 has connecting rod 6, the outside fixedly connected with clamp plate 7 of slide bar 5, the outside fixedly connected with briquetting 8 of clamp plate 7, the outside fixedly connected with of fixing base 3 is no less than four slide rail 4, two position corresponding slide bar 5 of outside fixedly connected with of clamp plate 7, two position corresponding briquetting 8 of outside fixedly connected with of clamp plate 7, the specification of two briquetting 8 and fixing base 3 and roller bearing 2's specification phase-match, one side fixedly connected with that briquetting 8 is close to roller bearing 2 slows down the piece of stopping, the outside swing joint of roller bearing 2 has the hawser, the specification phase-match of the piece of slowing down and the specification of haw.

The outer part of the first sliding rail 4 is fixedly connected with a hydraulic rod 9, the rolling shaft 2 is movably connected with the inner part of the fixed seat 3, a sliding groove is formed in the surface of the fixed seat 3, the inner side of the sliding groove is movably connected with a sliding block, one end of the connecting rod 6 is movably connected with the outer part of the sliding rod 5, the other end of the connecting rod is movably connected with the outer part of the sliding block, one end of the hydraulic rod 9 is fixedly connected with the outer part of the first sliding rail 4, the other end of the hydraulic rod is movably connected with the outer part of the sliding block, the outer part of the first sliding rail 4 is movably connected with a first spring; through davit 1, roller bearing 2, fixing base 3, slide rail 4, slide bar 5, connecting rod 6, clamp plate 7, briquetting 8, under the interact between the hydraulic stem 9, can make on-vehicle loop wheel machine in the in-process of handling goods take place hawser fracture or when the out-of-order condition of loop wheel machine, stall rotation will take place about the hawser motion for roller bearing 2, and then just can make to slow down and brake piece and hawser contact under the effect of response structure, just can realize the effect that the hawser slows down like this under the effect of braking the piece at the speed reduction, and then will avoid hawser and goods stall to take place the condition that the motion caused unnecessary loss of property and threat personnel safety and take place.

The inside fixedly connected with lug 10 of roller bearing 2, the outside swing joint of lug 10 has movable rod 11, the inboard fixedly connected with connecting rod 12 of movable rod 11, inboard fixedly connected with slide rail two 13 of movable rod 11, the inside fixedly connected with N utmost point 14 of slide rail two 13, the inside fixedly connected with S utmost point 15 of slide rail two 13, the specification of N utmost point 14 and the specification phase-match of S utmost point 15 and the two position of the two inside at slide rail two 13 correspond mutually, connecting rod 12 swing joint is in the inboard of slide rail two 13, connecting rod 12 is close to the one end fixedly connected with copper bar of slide rail two 13, the specification and the N utmost point 14 of copper bar, the specification phase-match of S utmost point 15, slide rail two 13 and connecting rod 12 all adopt non-metallic insulating material.

One end of the movable rod 11, which is far away from the convex block 10, is movably connected with a sliding plate 16, the convex block 10 is fixedly connected with one side of the induction groove, which is close to the axle center of the roller 2, the outer part of the convex block 10 is fixedly connected with a friction plate, the sliding plate 16 is movably connected with the inner side of the induction groove, the outer part of the sliding plate 16 is movably connected with two movable rods 11 with corresponding positions, one side of the movable rod 11, which is far away from the sliding plate 16, is movably connected with the outer part of the friction plate, the movable rod 11 is movably connected with the inner side of the induction groove, the inner side of the movable rod 11 is movably connected with a second spring, two ends of the second spring are respectively and movably connected with the inner sides of the two movable rods 11, when the; hydraulic stem 9, the bar copper, external power source all is connected with the control maincenter electricity, hydraulic stem 9 is connected with the external power source electricity, through roller bearing 2, lug 10, movable rod 11, connecting rod 12, two 13 slide rails, the N utmost point 14, the S utmost point 15, under the interact between the slide 16, can be so that the response structure of this device can not triggered the start in roller bearing 2 normal pivoted, only just can start the response structure when roller bearing 2 takes place the stall pivoted, and then start reduction gears, guaranteed the use under this device more is fit for actual conditions like this.

The device starts to be started, when a cable rope is broken or the crane fails in the process of lifting goods by the vehicle-mounted crane, the cable rope stalls under the action of gravity of the goods, the stalling motion of the cable rope drives the roller 2 to stall and rotate, the stalling and rotation of the roller 2 drives the sliding plate 16 to slide on the inner side of the induction groove under the action of centrifugal force, the sliding plate 16 slides to overcome the friction force of the friction plate and drive the movable rods 11 to move, the movable rods 11 move to drive the two movable rods 11 to approach under the action of the restoring force of the spring II, so that the two movable rods 11 move to drive the sliding rail II 13 and the connecting rod 12 to move oppositely to drive the copper rod to move, the copper rod moves to cut magnetic induction lines of a magnetic field between the N pole 14 and the S pole 15, and then the current inside the copper rod changes, and therefore, a control center controls the external power supply to the hydraulic rod, extension motion can take place for hydraulic stem 9 circular telegram, and hydraulic stem 9 extension drives the slider and slides in the spout inboard, and the slider slides and drives spring extension and drive connecting rod 6 motion, and connecting rod 6 motion drives slide bar 5 and slides in 4 inboards of slide rail, and slide bar 5 slides and drives the motion of clamp plate 7, and the motion of clamp plate 7 drives the motion of briquetting 8, and the motion of briquetting 8 drives the piece motion of stopping that slows down, and the piece that slows down stops carries out the speed limit to the hawser of stall state.

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 hawser anti-stall device for on-vehicle loop wheel machine, includes davit (1) and roller bearing (2), its characterized in that: the suspension arm comprises a suspension arm body (1), a fixed seat (3) is fixedly connected to the outer portion of the suspension arm body (1), a first sliding rail (4) is fixedly connected to the outer portion of the fixed seat (3), a sliding rod (5) is movably connected to the inner side of the first sliding rail (4), a connecting rod (6) is movably connected to the outer portion of the sliding rod (5), a pressing plate (7) is fixedly connected to the outer portion of the sliding rod (5), a pressing block (8) is fixedly connected to the outer portion of the pressing plate (7), a hydraulic rod (9) is fixedly connected to the outer portion of the first sliding rail (4), a protruding block (10) is fixedly connected to the inner portion of a rolling shaft (2), a movable rod (11) is movably connected to the outer portion of the protruding block (10), a connecting rod (12) is fixedly connected to the inner side of the movable rod (11), a second sliding rail (, one end of the movable rod (11) far away from the convex block (10) is movably connected with a sliding plate (16).

2. A rope anti-stall device for a truck-mounted crane as defined in claim 1, wherein: roller bearing (2) swing joint is in the inside of fixing base (3), the spout has been seted up on the surface of fixing base (3), the inboard swing joint of spout has the slider, the one end swing joint of connecting rod (6) is in the outside of slide bar (5), its other end swing joint is in the outside of slider, the one end fixed connection of hydraulic stem (9) is in the outside of slide rail (4), its other end swing joint is in the outside of slider, the outside swing joint of slide rail (4) has spring one, the one end swing joint of slide rail (4) is kept away from to spring one is in the outside of slider, spring one swing joint is in the outside of hydraulic stem (9).

3. A rope anti-stall device for a truck-mounted crane as defined in claim 1, wherein: slide rail (4) that four are no less than to the outside fixedly connected with of fixing base (3), the corresponding slide bar (5) in two positions of the outside fixedly connected with of clamp plate (7), the corresponding briquetting (8) in two positions of the outside fixedly connected with of clamp plate (7), the specification of two briquetting (8) and the specification phase-match of fixing base (3) and roller bearing (2), one side fixedly connected with speed reduction that briquetting (8) are close to roller bearing (2) is stopped the piece, the outside swing joint of roller bearing (2) has the hawser, the specification of the piece of stopping slowing down and the specification phase-match of hawser.

4. A rope anti-stall device for a truck-mounted crane as defined in claim 1, wherein: at least three induction grooves are formed in the rolling shaft (2), and the induction grooves are uniformly distributed in the rolling shaft (2).

5. A rope anti-stall device for a truck-mounted crane as defined in claim 1, wherein: lug (10) fixed connection is in the one side that the response groove is close to roller bearing (2) axle center, the outside fixedly connected with friction disc of lug (10), slide (16) swing joint is in the inboard in response groove, the outside swing joint of slide (16) has two corresponding movable rod (11) in position, one side swing joint that slide (16) were kept away from in movable rod (11) is in the outside of friction disc, movable rod (11) swing joint is in the inboard in response groove, the inboard swing joint of movable rod (11) has spring two, the both ends difference swing joint of spring two is in the inboard of two movable rod (11).

6. A rope anti-stall device for a truck-mounted crane as defined in claim 1, wherein: the specification of the N pole (14) is matched with the specification of the S pole (15) and the two positions of the N pole and the S pole are corresponding to each other in the inner portion of the second sliding rail (13), the connecting rod (12) is movably connected to the inner side of the second sliding rail (13), one end of the connecting rod (12) close to the second sliding rail (13) is fixedly connected with a copper bar, the specification of the copper bar is matched with the specifications of the N pole (14) and the S pole (15), and the second sliding rail (13) and the connecting rod (12) are made of non-metal insulating materials.

7. A rope anti-stall device for a truck-mounted crane as defined in claim 1, wherein: the hydraulic rod (9), the copper rod and the external power supply are all electrically connected with the control center, and the hydraulic rod (9) is electrically connected with the external power supply.