CN112429658A

CN112429658A - Crane jib with sling knotting prevention structure for truck-mounted crane

Info

Publication number: CN112429658A
Application number: CN202011242291.7A
Authority: CN
Inventors: 郑华
Original assignee: Hunan Dingrong Intelligent Equipment Co ltd
Current assignee: Hunan Dingrong Intelligent Equipment Co ltd
Priority date: 2020-11-09
Filing date: 2020-11-09
Publication date: 2021-03-02

Abstract

The invention discloses a suspension arm with a structure for preventing a suspension rope from knotting for a lorry-mounted crane, which comprises a suspension arm body and a lifting rope, wherein the left side of the suspension arm body is connected with a telescopic rod, the left side of the telescopic rod is connected with a driving cylinder, the left side of a connecting plate is provided with a support frame, the left side and the right side of the support frame are both provided with hooks, the lifting rope is connected above the hooks, the inner side of the lifting rope is provided with a scroll, the left side and the right side of the scroll are both fixedly provided with a baffle, the position of the baffle, which is far away from the vertical central line of the scroll, is connected with. This lorry crane is with davit that has the structure of preventing the lifting rope to tie a knot is provided with two sets of lifting ropes in the both sides of support frame to can keep the balance of support frame, the couple is convenient for put into lifting by crane hanging of article, and the couple is provided with four simultaneously, can be that the four corners of object lifts by crane it, thereby can guarantee to disperse power to the four corners.

Description

Crane jib with sling knotting prevention structure for truck-mounted crane

Technical Field

The invention relates to the technical field of suspension arms, in particular to a suspension arm with a structure for preventing a suspension rope from knotting for a truck crane.

Background

The vehicle-mounted crane generally refers to a vehicle-mounted hoisting transport vehicle, which is called a vehicle-mounted crane for short, and some places are also called as truck cranes, self-cranes and the like according to habits. The lifting and transporting integrated crane is mainly used in stations, warehouses, wharfs, construction sites, field rescue and other places, can be provided with cargo compartments with different lengths and cranes with different tonnages, and is usually assembled on a truck.

The davit that current lorry crane used is in the use, because the heavy object rocks or factors such as wind-blowing, easily leads to the rope to rock the condition that appears knoing, and current davit is mostly single lifting rope and lifts by crane, very easily leads to its disequilibrium and cause dropping of goods at the goods in-process of lifting by crane when lifting by crane the goods, very dangerous, can not be fine satisfy people's user demand, to above-mentioned condition, carry out technical innovation on the davit basis that current lorry crane used.

Disclosure of Invention

The invention aims to provide a suspension arm with a structure for preventing a suspension rope from knotting for a lorry-mounted crane, and aims to solve the problems that the existing suspension arm for the lorry-mounted crane is provided in the background art, the rope is easy to shake and knotted due to factors such as heavy object shaking or wind blowing, the existing suspension arm is mostly lifted by a single suspension rope, the goods are easy to fall off due to unbalance in the process of lifting the goods when the goods are lifted, the existing suspension arm is dangerous, and the use requirements of people cannot be well met.

In order to achieve the purpose, the invention provides the following technical scheme: a boom with a structure for preventing a boom from knotting comprises a boom body and a lifting rope, wherein the left side of the boom body is connected with a telescopic rod, the left side of the telescopic rod is connected with a driving cylinder, the left side of the driving cylinder is provided with a mounting plate, the upper side and the lower side of the boom body are respectively provided with a fixing screw rod, a connecting plate is arranged below the boom body, the connecting plate is internally provided with a guide chute, the left side of the connecting plate is provided with a support frame, the left side and the right side of the support frame are respectively provided with a hook, the lifting rope is connected above the hook, the left side and the right side of the interior of the boom body are respectively provided with a stepping motor, the right side of the stepping motor is connected with a linkage shaft, the outer side of the lifting rope is provided with a positioning hole, the inner side of the lifting rope is provided with a scroll, the, the position that the vertical central line of spool was kept away from to the baffle is connected with the fixed lantern ring, and the inside of fixed lantern ring has seted up the draw-in groove.

Preferably, the driving cylinder forms a telescopic structure with the suspension arm body through a telescopic rod, and the telescopic rod is overlapped with the horizontal center line of the suspension arm body.

Preferably, the stepping motor forms a rotating structure through the linkage shaft and between the baffle and the scroll, and the baffle is symmetrically distributed about the vertical center line of the scroll.

Preferably, the baffle plate forms a rotating structure through the raised ring, the clamping groove and the fixed sleeve ring, the fixed sleeve ring is fixedly connected with the suspension arm body, and the lifting rope penetrates through the positioning hole.

Preferably, the lifting ropes are symmetrically distributed about the vertical center line of the support frame, two groups of lifting ropes are arranged, and the support frame is of a triangular structure.

Preferably, the hooks are symmetrically distributed about the vertical center line of the support frame, and the number of the hooks is four.

Preferably, the suspension arm body forms a sliding structure with the connecting plate through the guide sliding groove, and the connecting plate and the suspension arm body are parallel to each other.

Compared with the prior art, the invention has the following beneficial effects:

1. the lifting arm comprises a lifting arm body, a stepping motor, a baffle plate, a reel, a clamping ring, a fixed sleeve ring, a positioning hole and a driving cylinder, wherein the lifting arm body is arranged on the lifting arm body, the driving cylinder can drive the lifting arm body to move left and right through a telescopic rod, so that the length of the lifting arm body can be adjusted according to needs;

2. the lifting device is provided with two groups of lifting ropes on two sides of the support frame, so that the balance of the support frame can be kept, the hooks are convenient for hanging and lifting objects, and four hooks can be arranged for lifting the objects at four corners, so that the force can be guaranteed to be dispersed to the four corners, the balance of the object lifting process is kept, the problems that the existing lifting arms are mostly lifted by a single lifting rope, the goods are easily dropped due to unbalance of the lifting ropes in the goods lifting process when the goods are lifted, and the goods are very dangerous are solved;

3. the guide sliding groove is arranged, so that the movement of the suspension arm body can be limited, the connection plate has the effect of connecting and supporting the suspension arm body and the mounting plate, and the practicability of the suspension arm with the structure for preventing the suspension rope from knotting for the truck-mounted crane is greatly improved.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic diagram of the right view structure of the present invention;

FIG. 3 is a schematic view of the internal structure of the baffle and retaining collar of the present invention;

FIG. 4 is a schematic view of the construction of the reel according to the present invention;

fig. 5 is a left side view structural schematic diagram of the boom body of the present invention.

In the figure: 1. a boom body; 2. mounting a plate; 3. a driving cylinder; 4. a telescopic rod; 5. a connecting plate; 6. fixing the screw rod; 7. a stepping motor; 8. a linkage shaft; 9. a baffle plate; 10. a fixed collar; 11. a reel; 12. lifting a lifting rope; 13. positioning holes; 14. a support frame; 15. hooking; 16. a raised ring; 17. a card slot; 18. a guide chute.

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, the present invention provides a technical solution: a lifting arm with a structure for preventing a lifting rope from knotting for a lorry-mounted crane comprises a lifting arm body 1 and a lifting rope 12, wherein the left side of the lifting arm body 1 is connected with an expansion link 4, the left side of the expansion link 4 is connected with a driving cylinder 3, the left side of the driving cylinder 3 is provided with a mounting plate 2, the upper side and the lower side of the lifting arm body 1 are both provided with fixing screw rods 6, a connecting plate 5 is arranged below the lifting arm body 1, the connecting plate 5 is internally provided with a guide chute 18, the left side of the connecting plate 5 is provided with a supporting frame 14, the left side and the right side of the supporting frame 14 are both provided with a hook 15, the lifting rope 12 is connected above the hook 15, the left side and the right side of the inside of the lifting arm body 1 are both provided with stepping motors 7, the right side of each stepping motor 7 is connected with a linkage shaft 8, the outer side of the, the outer wall fixed mounting of baffle 9 has protruding circle 16, and the baffle 9 is kept away from the position of the vertical central line of spool 11 and is connected with the fixed lantern ring 10, and the draw-in groove 17 has been seted up to the inside of the fixed lantern ring 10.

In the invention: the driving cylinder 3 and the suspension arm body 1 form a telescopic structure through a telescopic rod 4, and the telescopic rod 4 is overlapped with the horizontal central line of the suspension arm body 1; the driving cylinder 3 can drive the suspension arm body 1 to move left and right through the telescopic rod 4, so that the length of the suspension arm body 1 can be adjusted as required.

In the invention: the stepping motor 7 forms a rotating structure with the reel 11 through the linkage shaft 8 and the baffle plates 9, and the baffle plates 9 are symmetrically distributed about the vertical center line of the reel 11; the stepping motor 7 can drive the baffle 9 and the reel 11 to rotate through the universal driving shaft 8, and the rotating reel 11 can wind the lifting rope 12, so that the lifting rope 12 is always in a tightening state, and the knotting of the lifting rope is prevented.

In the invention: the baffle 9 forms a rotating structure with the fixed lantern ring 10 through the raised ring 16 and the clamping groove 17, the fixed lantern ring 10 is fixedly connected with the suspension arm body 1, and the lifting rope 12 penetrates through the positioning hole 13; through protruding circle 16 and draw-in groove 17 can make and form relative rotation between baffle 9 and the fixed lantern ring 10 to can fix baffle 9 position through the fixed lantern ring 10 and do not influence its rolling work again, locating hole 13 can play the effect of location to lifting rope 12, has solved the davit that current lorry crane used in the use, because the heavy object rocks or factors such as wind, easily leads to the rope to rock the problem that the condition of knoing appears.

In the invention: the lifting ropes 12 are symmetrically distributed about the vertical center line of the support frame 14, two groups of lifting ropes 12 are arranged, and the support frame 14 is in a triangular structure; two sets of lifting cords 12 are provided on either side of the support frame 14 to maintain the balance of the support frame 14.

In the invention: the hooks 15 are symmetrically distributed about the vertical center line of the support frame 14, and four hooks 15 are arranged; couple 15 is convenient for put the hanging of article and lifts by crane, and couple 15 is provided with four simultaneously, can be that the four corners of object lifts by crane it to can guarantee to do all can the power dispersion to four corners, keep the equilibrium of object lift by crane the process, avoided current davit mostly to be single lifting rope and lifted by crane, very easily when lifting by crane the goods lift by crane the in-process at the goods and lead to its disequilibrium and cause dropping of goods, very dangerous problem.

In the invention: the suspension arm body 1 and the connecting plate 5 form a sliding structure through the guide sliding chute 18, and the connecting plate 5 and the suspension arm body 1 are parallel to each other; the guide sliding groove 18 can play a limiting role in moving the suspension arm body 1, the connecting plate 5 plays a connecting and supporting effect on the suspension arm body 1 and the mounting plate 2, and the practicability of the suspension arm with the structure for preventing the suspension rope from knotting for the lorry-mounted crane is greatly improved.

The working principle of the suspension arm with the structure for preventing the suspension rope from knotting for the lorry-mounted crane is as follows: firstly, the connecting plate 5 has the effect of connecting and supporting the suspension arm body 1 and the mounting plate 2, the mounting plate 2 is fixedly mounted on a lorry-mounted crane through a fixing screw 6, the driving cylinder 3 is started, the driving cylinder 3 drives the suspension arm body 1 to move rightwards through the telescopic rod 4, and the guide chute 18 has the limiting effect on the movement of the suspension arm body 1 until the suspension arm body 1 is adjusted to the required length; the four hooks 15 are respectively hung at the four corners of the article, so that the force can be dispersed to the four corners, the balance of the article in the lifting process is kept, and the falling of the article caused by unbalance during the lifting of the article is prevented; then, starting a stepping motor 7, driving a baffle plate 9 and a scroll 11 to rotate by the stepping motor 7 through a linkage shaft 8, and enabling the baffle plate 9 to rotate relatively to the fixed lantern ring 10 at the inner side of the fixed lantern ring through the clamping of a convex ring 16 and a clamping groove 17; last pivoted spool 11 lifts by crane the in-process and rolls up lifting rope 12, is taken support frame 14 by lifting rope 12 and is lifted by crane the object together, the lifting rope 12 of both sides can keep the balance of support frame 14, lifting rope 12 is rolled up the winding in the spool 11 outside through locating hole 13 to make lifting rope 12 be in the state of tightening up always, prevent that its loose condition of knoing from appearing, avoided because factors such as heavy object rocks or blows, lead to the rope to rock the condition of knoing.

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 lorry crane is with davit that has structure of preventing lifting rope knot, includes davit body (1) and lifting rope (12), its characterized in that: the suspension arm comprises a suspension arm body (1), and is characterized in that a telescopic rod (4) is connected to the left side of the suspension arm body (1), a driving cylinder (3) is connected to the left side of the telescopic rod (4), a mounting plate (2) is installed on the left side of the driving cylinder (3), fixing screw rods (6) are installed on the upper side and the lower side of the suspension arm body (1), a connecting plate (5) is installed below the suspension arm body (1), a guide sliding groove (18) is formed in the connecting plate (5), a supporting frame (14) is installed on the left side of the connecting plate (5), hooks (15) are installed on the left side and the right side of the supporting frame (14), a lifting rope (12) is connected above the hooks (15), stepping motors (7) are installed on the left side and the right side of the interior of the suspension arm body (1), a linkage shaft (8) is connected to, reel (11) are installed to the inboard of lifting rope (12), and the equal fixed mounting in the left and right sides of reel (11) has baffle (9), the outer wall fixed mounting of baffle (9) has protruding circle (16), the position that the vertical central line of reel (11) was kept away from in baffle (9) is connected with the fixed lantern ring ((10), and draw-in groove (17) have been seted up to the inside of the fixed lantern ring (10).

2. The boom with the structure for preventing the rope from knotting for the lorry-mounted crane according to claim 1, characterized in that: the driving cylinder (3) and the suspension arm body (1) form a telescopic structure through a telescopic rod (4), and the telescopic rod (4) and the horizontal center line of the suspension arm body (1) are overlapped.

3. The boom with the structure for preventing the rope from knotting for the lorry-mounted crane according to claim 1, characterized in that: the stepping motor (7) forms a rotating structure with the reel (11) through the linkage shaft (8) and the baffle (9), and the baffle (9) is symmetrically distributed about the vertical center line of the reel (11).

4. The boom with the structure for preventing the rope from knotting for the lorry-mounted crane according to claim 1, characterized in that: baffle (9) constitute rotating-structure through protruding circle (16) and draw-in groove (17) and between fixed lantern ring (10), and be fixed connection between fixed lantern ring (10) and davit body (1) to lifting rope (12) run through in the inside of locating hole (13).

5. The boom with the structure for preventing the rope from knotting for the lorry-mounted crane according to claim 1, characterized in that: the lifting ropes (12) are symmetrically distributed about the vertical center line of the support frame (14), two groups of lifting ropes (12) are arranged, and the support frame (14) is of a triangular structure.

6. The boom with the structure for preventing the rope from knotting for the lorry-mounted crane according to claim 1, characterized in that: the hooks (15) are symmetrically distributed about the vertical center line of the support frame (14), and four hooks (15) are arranged.

7. The boom with the structure for preventing the rope from knotting for the lorry-mounted crane according to claim 1, characterized in that: the suspension arm body (1) and the connecting plate (5) form a sliding structure through the guide sliding groove (18), and the connecting plate (5) and the suspension arm body (1) are parallel to each other.