Lorry-mounted crane with auxiliary hook

Abstract

The utility model discloses a lorry-mounted crane with an auxiliary hook, which belongs to the field of lorry-mounted cranes and comprises a lorry-mounted crane body, a cargo boom is arranged on the lorry-mounted crane body, and an amplitude-adjustable auxiliary hook arm head is arranged at one end of the cargo boom. A group of hydraulic cylinders inside the swing arms can push the corresponding swing arms to deflect so as to drive a group of arc arms and a steel cable winch which are fixedly welded on a reinforcing roller to deflect, so that the amplitude of the steel cable winch is adjustable, and the distance between the steel cable winch and a main hook or a main hook steel cable is adjustable; the probability that the auxiliary hook steel cable and the main hook steel cable are wound and knotted when the auxiliary hook steel cable is guided to be connected with the auxiliary hook through the steel cable winch is reduced, and using convenience and safety are improved.

Description

Technical Field

[0001] The utility model relates to the field of truck-mounted cranes, and more specifically to a truck-mounted crane with an auxiliary hook. Background Art

[0002] Truck mounted crane transport vehicle, also known as truck mounted crane or truck mounted crane for short, is a kind of equipment which realizes the lifting, rotation and hoisting of goods through hydraulic lifting and telescopic system. It is usually installed on trucks and generally consists of truck chassis, cargo compartment, power take-off and boom system.

[0003] In order to improve the convenience and versatility of truck cranes, many manufacturers currently install auxiliary hook boom heads at the end of the boom to facilitate the guidance of the steel cable with the auxiliary hook. However, the existing auxiliary hook boom head has a relatively simple structure and lacks an amplitude adjustment mechanism for the steel cable winch for winding the auxiliary hook steel cable. As a result, when the steel cable winch for guiding the winding of the auxiliary hook steel cable is close to the main hook steel cable, the auxiliary hook steel cable is prone to entanglement and knotting with the main hook steel cable, which is not very convenient to use. Therefore, we propose a truck crane with an auxiliary hook to solve the above problems. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide a truck-mounted crane with an auxiliary hook, which has an adjustable auxiliary hook arm head, and a group of hydraulic cylinders inside it can push the corresponding swing arm to deflect, thereby driving a group of arc arms and a cable winch fixedly welded on the reinforcing roller to deflect, so that the amplitude of the cable winch can be adjusted, and the distance between the cable winch and the main hook or the main hook cable can be adjusted, thereby reducing the probability of the auxiliary hook cable and the main hook cable being entangled and knotted when the auxiliary hook cable is guided by the cable winch to connect the auxiliary hook, thereby improving convenience and safety during use.

[0006] 2. Technical solution

[0007] To solve the above problems, the utility model adopts the following technical solutions.

[0008] A truck-mounted crane with an auxiliary hook comprises a truck-mounted crane body, a lifting arm is arranged on the truck-mounted crane body, and an adjustable auxiliary hook arm head is arranged at the end of one end of the lifting arm;

[0009] The adjustable-range auxiliary hook arm head comprises an arm head base fixedly welded to one end of the lifting arm, a group of side plates are arranged on the arm head base, and a group of side plates are arranged at one end with a reinforcing roller, a group of arc arms are fixedly welded to the reinforcing roller, a group of arc arms are rotatably connected with a steel cable winch, and a group of side plate tops are rotatably connected through a plurality of burden rollers;

[0010] A group of side plates and side walls are fixedly welded with positioning shaft one and positioning shaft two, and the two positioning shafts one are rotatably connected to hydraulic cylinders, the push rod ends at the bottom of the hydraulic cylinders are rotatably connected to swing arms, and the two positioning shafts two are rotatably connected to electric cylinders.

[0011] Furthermore, both ends of the reinforcing roller are fixedly connected with a rotating shaft, and a group of side plates corresponding to the positions of the two rotating shafts are provided with shaft holes, and the ends of the two rotating shafts extend to the outside of the side plates through the corresponding shaft holes, and a bearing is fixedly installed on the outside of the rotating shaft at the connection between the rotating shaft and the shaft hole.

[0012] Furthermore, the ends of the two rotating shafts are respectively fixedly welded to the corresponding tops of the swing arms, and a limit gear is fixedly installed on the outer side of the rotating shaft between the swing arm and the side plate. A clamp is meshingly connected to one side of the limit gear, and a pin is rotatably connected to the bottom of the clamp. One end of the pin is fixedly welded to the side wall of the side plate, and the end of the output rod on one side of the electric cylinder is rotatably connected to the top of the clamp.

[0013] Furthermore, an avoidance groove is provided at the top of the arm head base, the bottom of the avoidance groove is parallel to the top of the roller surface of the plurality of bearing rollers, and the top of the roller surface of the plurality of bearing rollers is higher than the top of the roller surface of the reinforcing roller.

[0014] Furthermore, a plurality of limiting grooves 1 are equidistantly provided on the wire rope winch, and a plurality of limiting grooves 2 are provided on the roller surfaces of a plurality of the bearing rollers at positions corresponding to the plurality of limiting grooves 1.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] In this solution, an adjustable-amplitude auxiliary hook arm head is arranged, and a group of hydraulic cylinders inside it can push the corresponding swing arm to deflect, thereby driving a group of arc arms and a steel cable winch fixedly welded on the reinforcing roller to deflect, so that the amplitude of the steel cable winch can be adjusted, and the distance between the steel cable winch and the main hook or the main hook steel cable can be adjusted, thereby reducing the probability of the auxiliary hook steel cable being entangled and knotted with the main hook steel cable when the auxiliary hook is guided by the steel cable winch to connect the auxiliary hook, thereby improving convenience and safety during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the installation of the adjustable auxiliary hook arm head of the utility model;

[0019] Figure 2 For the utility model Figure 1 The enlarged structural diagram at A in the middle;

[0020] Figure 3 This is a schematic diagram of the structure of the adjustable auxiliary hook arm head of the utility model;

[0021] Figure 4 It is a schematic diagram of the structure of the two ends of the reinforcing roller of the utility model.

[0022] Description of the numbers in the figure:

[0023] 1. Truck-mounted crane body; 101. Lifting arm; 2. Adjustable auxiliary hook arm head; 3. Arm head base; 301. Side plate; 302. Positioning axis 1; 303. Positioning axis 2; 304. Avoidance groove; 4. Strengthening roller; 401. Rotating shaft; 402. Bearing; 5. Arc arm; 6. Cable winch; 7. Load roller; 8. Hydraulic cylinder; 9. Swing arm; 10. Electric cylinder; 11. Limiting gear; 12. Clamp. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention specification; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field without creative work based on the embodiments of the present invention are within the scope of protection of the present invention.

[0025] Embodiment 1:

[0026] See also Figure 1-Figure 4 A truck-mounted crane with an auxiliary hook comprises a truck-mounted crane body 1, a crane arm 101 is arranged on the truck-mounted crane body 1, and an adjustable auxiliary hook arm head 2 is arranged at one end of the crane arm 101;

[0027] The adjustable-amplitude auxiliary hook arm head 2 includes an arm head base 3 fixedly welded to one end of the lifting arm 101, a group of side plates 301 are arranged on the arm head base 3, and a reinforcing roller 4 is arranged at one end of a group of side plates 301, a group of arc arms 5 are fixedly welded on the reinforcing roller 4, a group of arc arms 5 are rotatably connected with a steel cable winch 6, and a group of side plates 301 are rotatably connected between the tops through a plurality of burden rollers 7; a group of side plates 301 side walls are fixedly welded with a positioning shaft 1 302 and a positioning shaft 2 303, and the two positioning shafts 1 302 are rotatably connected with a hydraulic cylinder 8, the push rod end at the bottom of the hydraulic cylinder 8 is rotatably connected with a swing arm 9, and the two positioning shafts 2 303 are rotatably connected with an electric cylinder 10; both ends of the reinforcing roller 4 are A rotating shaft 401 is fixedly connected, and an axial hole is opened on a group of side plates 301 at the positions corresponding to the two rotating shafts 401, and the ends of the two rotating shafts 401 extend to the outside of the side plate 301 through the corresponding axial holes, and a bearing 402 is fixedly installed on the outside of the rotating shaft 401 at the connection between the rotating shaft 401 and the axial hole; the ends of the two rotating shafts 401 are respectively fixedly welded to the top of the corresponding swing arm 9, and a limiting gear 11 is fixedly installed on the outside of the rotating shaft 401 between the swing arm 9 and the side plate 301, and a clamping piece 12 is meshedly connected to one side of the limiting gear 11, and a pin is rotatably connected to the bottom of the clamping piece 12, and one end of the pin is fixedly welded to the side wall of the side plate 301, and the end of the output rod on one side of the electric cylinder 10 is rotatably connected to the top of the clamping piece 12.

[0028] The use principle of the adjustable auxiliary hook boom head of this truck crane with auxiliary hook is:

[0029] First, the auxiliary hook cable guided through the boom 101 is guided to the avoidance groove 304 of the adjustable auxiliary hook arm head 2, and is guided to the cable winch 6 through the top of a plurality of burden rollers 7, and then is further guided downward through the corresponding limit groove 1 on the cable winch 6, and the auxiliary hook is fixedly installed at the end of the auxiliary hook cable. At this time, the auxiliary hook can be used for hoisting work, and the adjustable auxiliary hook arm head 2 supports the auxiliary hook cable during the working process;

[0030] When it is necessary to adjust the distance between the auxiliary hook cable and the main hook cable, first, under the premise that there is no hoisting object on the auxiliary hook, start the electric cylinder 10 and control the output rod end on one side of the electric cylinder 10 to retract, so that one side of the clamp 12 is disengaged from the limit gear 11, and then start the hydraulic cylinder 8 and control the push rod at the bottom of the hydraulic cylinder 8 to push out or retract, thereby driving a group of arc arms 5 and the cable winch 6 on the reinforcing roller 4 to perform upward or downward deflection through the connection of the swing arm 9, so as to achieve the effect of the axis of the cable winch 6 moving away from or approaching the distance between the main hook cable, thereby achieving the effect of increasing or decreasing the distance between the auxiliary hook cable and the main hook cable, and reducing the probability of entanglement and knotting between the cables.

[0031] Embodiment 2:

[0032] In view of the above embodiment 1, for further description, refer to Figure 2 and Figure 3 An avoidance groove 304 is provided at the top of the arm head base 3, the bottom of the avoidance groove 304 is parallel to the top of the roller surface of the plurality of bearing rollers 7, and the top of the roller surface of the plurality of bearing rollers 7 is higher than the top of the roller surface of the reinforcing roller 4, and a plurality of limit grooves 1 are equidistantly provided on the steel cable winch 6, and a plurality of limit grooves 2 are provided on the roller surfaces of the plurality of bearing rollers 7 at the positions of the plurality of limit grooves 1.

[0033] The avoidance groove 304 can provide an avoidance space for the guiding direction of the auxiliary hook steel cable. The opening of the limiting groove 1 and the limiting groove 2 can position the guiding direction of the auxiliary hook steel cable and improve the stability of the structure.

[0034] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A truck-mounted crane with an auxiliary hook, comprising a truck-mounted crane body (1), characterized in that: The truck-mounted crane body (1) is provided with a lifting arm (101), and an adjustable auxiliary hook arm head (2) is provided at one end of the lifting arm (101); The adjustable-amplitude auxiliary hook arm head (2) comprises an arm head base (3) fixedly welded to one end of the lifting arm (101), a group of side plates (301) are arranged on the arm head base (3), and a reinforcing roller (4) is arranged at one end of a group of side plates (301), a group of arc arms (5) are fixedly welded to the reinforcing roller (4), a group of arc arms (5) are rotatably connected to a steel cable winch (6), and a group of tops of the side plates (301) are rotatably connected via a plurality of load bearing rollers (7); A first positioning shaft (302) and a second positioning shaft (303) are fixedly welded on the side walls of a group of side plates (301), and the two first positioning shafts (302) are both rotatably connected to a hydraulic cylinder (8), the push rod end at the bottom of the hydraulic cylinder (8) is rotatably connected to a swing arm (9), and the two second positioning shafts (303) are both rotatably connected to an electric cylinder (10).

2. A truck-mounted crane with an auxiliary hook according to claim 1, characterized in that: Both ends of the reinforcing roller (4) are fixedly connected with a rotating shaft (401), and a group of the side plates (301) corresponding to the positions of the two rotating shafts (401) are provided with shaft holes, and the ends of the two rotating shafts (401) extend to the outside of the side plates (301) through the corresponding shaft holes, and a bearing (402) is fixedly installed on the outside of the rotating shaft (401) at the connection between the rotating shaft (401) and the shaft holes.

3. A truck-mounted crane with an auxiliary hook according to claim 2, characterized in that: The ends of the two rotating shafts (401) are respectively fixedly welded to the tops of the corresponding swing arms (9); a limit gear (11) is fixedly installed on the outer side of the rotating shaft (401) between the swing arm (9) and the side plate (301); a clamp (12) is meshedly connected to one side of the limit gear (11); a pin is rotatably connected to the bottom of the clamp (12); one end of the pin is fixedly welded to the side wall of the side plate (301); and an end of an output rod on one side of the electric cylinder (10) is rotatably connected to the top of the clamp (12).

4. A truck-mounted crane with an auxiliary hook according to claim 1, characterized in that: An avoidance groove (304) is provided at the top of the arm head base (3), and the bottom of the avoidance groove (304) is parallel to the top of the roller surface of the plurality of bearing rollers (7), and the top of the roller surface of the plurality of bearing rollers (7) is higher than the top of the roller surface of the reinforcing roller (4).

5. The truck-mounted crane with an auxiliary hook according to claim 1, characterized in that: The steel cable winch (6) is provided with a plurality of limit grooves 1 at equal intervals, and a plurality of limit grooves 2 are provided on the roller surfaces of a plurality of the bearing rollers (7) at positions corresponding to the plurality of limit grooves 1.

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