Telescopic light crane

Abstract

The utility model discloses a telescopic light crane. The telescopic light crane comprises a supporting column, a telescopic driving mechanism and a steering driving mechanism, symmetrically distributed supports are fixedly connected to the upper end of the supporting column, a rotating shaft is rotationally connected between the supports, a steering seat is fixedly connected to the middle of the rotating shaft, a fixed cylinder is fixedly connected to the right end of the steering seat, a sliding arm is slidably connected to the right end of the fixed cylinder, and symmetrically distributed auxiliary seats are fixedly connected to the right end of the sliding arm and the left end of the upper surface of the fixed cylinder; auxiliary wheels are rotatably connected between the auxiliary seats, an electric hoist is arranged at the left end of the supporting column, the auxiliary wheels and a rope of the electric hoist are installed in a matched mode, a lifting hook is fixedly connected to the lower end of the rope, and a rotary disc is fixedly connected to the lower end of the supporting column. And meanwhile, electric rotation of the cargo boom can be achieved, and the hoisting application range of the telescopic light crane is effectively expanded.

Description

Technical Field

[0001] The utility model relates to the technical field of light cranes, in particular to a telescopic light crane. Background Art

[0002] A telescopic light crane, also known as a telescopic forklift or telehandler, is a mechanical device consisting of a truck with a boom. Its main structural feature is a telescopic boom consisting of a series of trapezoidal or triangular cross-sections that fit together when fully retracted. The types of telescopic booms include fully powered, fixed, and a combination of the two, where the fully powered boom is able to be retracted and extended using hydraulic means, while the fixed boom has sections that are fixed in the retracted and extended positions;

[0003] Some existing telescopic light cranes use the method of manually folding and unfolding the boom to perform the telescopic work of the boom;

[0004] Such conventional telescopic light cranes have the following problems. For example, the manual folding and unfolding of the boom may affect the convenience of hoisting of the telescopic light crane and may limit the scope of application of the telescopic light crane. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide a telescopic light crane that can realize the electric telescopic adjustment of the lifting arm and the electric rotation of the lifting arm, thereby effectively expanding the hoisting application scope of the telescopic light crane and effectively solving the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a telescopic light crane, comprising a support column, a telescopic drive mechanism and a steering drive mechanism;

[0007] Pillar: The upper end thereof is fixedly connected with symmetrically distributed supports, a rotating shaft is rotatably connected between the supports, a steering seat is fixedly connected to the middle of the rotating shaft, a fixed cylinder is fixedly connected to the right end of the steering seat, a sliding arm is slidably connected to the right end of the fixed cylinder, the right end of the sliding arm and the left end of the upper surface of the fixed cylinder are fixedly connected with symmetrically distributed auxiliary seats, auxiliary wheels are rotatably connected between the auxiliary seats, an electric hoist is arranged at the left end of the pillar, the auxiliary wheels are installed in coordination with the rope of the electric hoist, a hook is fixedly connected to the lower end of the rope, a turntable is fixedly connected to the lower end of the pillar, and the outer surface of the turntable is rotatably connected to the upper end of the control cabin;

[0008] Telescopic drive mechanism: it is arranged at the left end of the fixed cylinder, and the right end of the telescopic drive mechanism is threadedly connected to the left end of the sliding arm;

[0009] Steering drive mechanism: it is arranged between the control compartment and the turntable;

[0010] Among them: it also includes a control switch group, which is arranged in the middle of the left side surface of the pillar. The input end of the control switch group is electrically connected to the external power supply, which can realize the electric telescopic adjustment of the crane arm and the electric rotation of the crane arm, effectively expanding the hoisting application range of the telescopic light crane.

[0011] Furthermore, the telescopic driving mechanism includes a driving bevel gear, a screw and a driven bevel gear. The screw is rotatably connected to the inside of the fixed cylinder, the right end of the screw is threadedly connected to the left end of the sliding arm, the driving bevel gear is fixedly connected to the left end of the screw, the left end of the front inner wall of the fixed cylinder is rotatably connected to the driving shaft, the driven bevel gear is fixedly connected to the rear end of the driving shaft, and the driven bevel gear is meshingly connected to the driving bevel gear to realize the movement of the sliding arm.

[0012] Furthermore, the telescopic drive mechanism also includes a motor 1, which is arranged at the left end of the front surface of the fixed cylinder, the output shaft of the motor 1 is fixedly connected to the front end of the drive shaft, and the input end of the motor 1 is electrically connected to the output end of the control switch group to provide driving force for the movement of the sliding arm.

[0013] Furthermore, the steering drive mechanism includes a bidirectional screw rod, a sliding seat, a connecting rod and a connecting shaft. The bidirectional screw rod is rotatably connected to the inside of the control compartment, the sliding seat is threadedly connected to the front and rear ends of the bidirectional screw rod, the connecting rod is rotatably connected to the middle part of the sliding seat, the connecting shaft is fixedly connected to the left and right ends of the turntable, and the end of the connecting rod away from the bidirectional screw rod is rotatably connected to the middle part of the longitudinally adjacent connecting shaft to realize the steering of the crane arm.

[0014] Furthermore, the steering drive mechanism also includes motor 2, which is arranged in the middle of the front surface of the control chamber, and the output shaft of motor 2 is fixedly connected to the front end of the longitudinally adjacent bidirectional screw rod, and the input end of motor 2 is electrically connected to the output end of the control switch group to provide driving force for the steering of the crane arm.

[0015] Furthermore, the right end of the pillar and the lower end of the fixed cylinder are fixedly connected with a U-shaped seat, the inside of the U-shaped seat is rotatably connected with a connecting seat, an electric push rod is arranged between the connecting seats, and the input end of the electric push rod is electrically connected to the output end of the control switch group to realize the angle adjustment of the crane arm.

[0016] Furthermore, the lower end of the control cabin is fixedly connected to a base, and the lower end of the base is provided with evenly distributed moving wheels to facilitate the movement of the crane.

[0017] Compared with the prior art, the utility model has the following advantages:

[0018] The personnel close the electric push rod through the control switch group and realize the operation of motor one. The output shaft of motor one rotates to drive the driving shaft to rotate, and then drives the driving bevel gear to rotate, and then drives the driven bevel gear to rotate, and finally realizes the rotation of the screw, so that the sliding arm slides to the right inside the fixed cylinder, so as to adjust the length of the lifting arm. Then the personnel close motor one and realize the operation of the electric hoist. The electric hoist and the auxiliary wheel work together to realize the retraction and release of the hook, so as to realize the lifting of materials. After the material is lifted, the personnel realize the operation of motor two through the control switch group. The output shaft of motor two rotates to drive the two-way screw to rotate, so that the sliding seat moves toward the center of the control bin, and then drives the end of the connecting rod close to the two-way screw to move toward the center of the control bin, so that the end of the connecting rod away from the two-way screw pushes the turntable to rotate through the connecting shaft, so as to realize the rotation of the pillar. The rotation of the pillar drives the fixed cylinder to rotate, and then drives the sliding arm to rotate, so as to realize the lateral position adjustment of the lifting material, and can realize the electric telescopic adjustment of the lifting arm, and at the same time can realize the electric rotation of the lifting arm, which effectively expands the application scope of the lifting of the telescopic light crane. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the cross-sectional structure inside the utility model;

[0021] Figure 3 This is an enlarged structural diagram of point A of the utility model.

[0022] In the figure: 1 pillar, 2 support, 3 steering seat, 4 fixed cylinder, 5 sliding arm, 6 telescopic drive mechanism, 61 motor 1, 62 driving bevel gear, 63 screw, 64 driven bevel gear, 7 steering drive mechanism, 71 motor 2, 72 bidirectional screw, 73 sliding seat, 74 connecting rod, 75 connecting shaft, 8 auxiliary seat, 9 auxiliary wheel, 10 electric hoist, 11 hook, 12 turntable, 13 driving bin, 14 base, 15 moving wheel, 16 control switch group, 17 U-shaped seat, 18 connecting seat, 19 electric push rod. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-3,This embodiment provides a technical solution: a telescopic light crane, comprising a pillar 1, a telescopic drive mechanism 6 and a steering drive mechanism 7;

[0025] Pillar 1: Its upper end is fixedly connected with symmetrically distributed supports 2, a rotating shaft is rotatably connected between the supports 2, a steering seat 3 is fixedly connected to the middle of the rotating shaft, a fixed cylinder 4 is fixedly connected to the right end of the steering seat 3, a sliding arm 5 is slidably connected to the right end of the fixed cylinder 4, the right end of the sliding arm 5 and the left end of the upper surface of the fixed cylinder 4 are fixedly connected with symmetrically distributed auxiliary seats 8, auxiliary wheels 9 are rotatably connected between the auxiliary seats 8, an electric hoist 10 is arranged at the left end of the pillar 1, the auxiliary wheels 9 are installed in cooperation with the cable of the electric hoist 10, a hook 11 is fixedly connected to the lower end of the cable, a turntable 12 is fixedly connected to the lower end of the pillar 1, the outer surface of the turntable 12 is rotatably connected to the upper end of the control compartment 13, the lower end of the control compartment 13 is fixedly connected to a base 14, and the lower end of the base 14 is provided with evenly distributed moving wheels 15;

[0026] Telescopic drive mechanism 6: It is arranged at the left end of the fixed cylinder 4, and the right end of the telescopic drive mechanism 6 is threadedly connected to the left end of the sliding arm 5. The telescopic drive mechanism 6 includes a driving bevel gear 62, a screw 63 and a driven bevel gear 64. The screw 63 is rotatably connected to the inside of the fixed cylinder 4, and the right end of the screw 63 is threadedly connected to the left end of the sliding arm 5. The driving bevel gear 62 is fixedly connected to the left end of the screw 63. The left end of the front inner wall of the fixed cylinder 4 is rotatably connected with a driving shaft, and the driven bevel gear 64 is fixedly connected to the rear end of the driving shaft. The driven bevel gear 64 meshes with the driving bevel gear 62. The telescopic drive mechanism 6 also includes a motor 61, which is arranged at the left end of the front surface of the fixed cylinder 4, and the output shaft of the motor 61 is fixedly connected to the front end of the drive shaft, and the input end of the motor 61 is electrically connected to the output end of the control switch group 16. When the motor 61 is running, the output shaft of the motor 61 rotates to drive the drive shaft to rotate, thereby driving the driving bevel gear 62 to rotate, and then driving the driven bevel gear 64 to rotate, and finally realizing the rotation of the screw 63, thereby making the sliding arm 5 slide to the right inside the fixed cylinder 4, thereby realizing the length adjustment of the lifting arm;

[0027] Steering drive mechanism 7: It is arranged between the control chamber 13 and the turntable 12. The steering drive mechanism 7 includes a bidirectional screw rod 72, a sliding seat 73, a connecting rod 74 and a connecting shaft 75. The bidirectional screw rod 72 is rotatably connected to the inside of the control chamber 13. The sliding seat 73 is threadedly connected to the front and rear ends of the bidirectional screw rod 72. The connecting rod 74 is respectively rotatably connected to the middle of the sliding seat 73. The connecting shaft 75 is respectively fixedly connected to the left and right ends of the turntable 12. The end of the connecting rod 74 away from the bidirectional screw rod 72 is rotatably connected to the middle of the longitudinally adjacent connecting shaft 75. The steering drive mechanism 7 also includes a second motor 71. The second motor 71 is arranged in the middle of the front surface of the control chamber 13. The output of the second motor 71 The shaft is fixedly connected to the front end of the bidirectional screw rod 72 adjacent to the longitudinal direction, and the input end of the motor 2 71 is electrically connected to the output end of the control switch group 16. When the motor 2 71 is running, the output shaft of the motor 2 71 rotates to drive the bidirectional screw rod 72 to rotate, thereby causing the sliding seat 73 to move toward the center of the control bin 13, thereby driving the end of the connecting rod 74 close to the bidirectional screw rod 72 to move toward the center of the control bin 13, thereby causing the end of the connecting rod 74 away from the bidirectional screw rod 72 to push the turntable 12 to rotate through the connecting shaft 75, thereby realizing the rotation of the pillar 1, and the rotation of the pillar 1 drives the fixed cylinder 4 to rotate, thereby driving the sliding arm 5 to rotate, thereby realizing the lateral position adjustment of the hoisted material;

[0028] Wherein: it also includes a control switch group 16, the control switch group 16 is arranged in the middle of the left side surface of the support 1, and the input end of the control switch group 16 is electrically connected to the external power supply;

[0029] Among them: the right end of the pillar 1 and the lower end of the fixed cylinder 4 are fixedly connected with a U-shaped seat 17, the inside of the U-shaped seat 17 is rotatably connected with a connecting seat 18, and an electric push rod 19 is arranged between the connecting seats 18. The input end of the electric push rod 19 is electrically connected to the output end of the control switch group 16. When the electric push rod 19 runs, the telescopic end of the electric push rod 19 extends to push the connecting seat 18 at the upper end to move upward, and then pushes the fixed cylinder 4 upward through the U-shaped seat 17 at the upper end, so that the steering seat 3 rotates under the action of the rotating shaft, thereby realizing the angle adjustment of the fixed cylinder 4 and the pillar 1.

[0030] The working principle of a telescopic light crane provided by the utility model is as follows: when working, the personnel first moves the telescopic light crane to the required position through the moving wheel 15, and then the personnel realizes the operation of the electric push rod 19 through the control switch group 16, and the telescopic end of the electric push rod 19 extends to push the connecting seat 18 at the upper end to move upward, and then pushes the fixed cylinder 4 upward through the U-shaped seat 17 at the upper end, so that the steering seat 3 rotates under the action of the rotating shaft, so as to realize the angle adjustment between the fixed cylinder 4 and the pillar 1, and when the fixed cylinder 4 moves to the required angle, the personnel closes the electric push rod 19 through the control switch group 16, and realizes the operation of the motor 1 61, and the output shaft of the motor 1 61 rotates to drive the driving shaft to rotate, and then drives the driving bevel gear 62 to rotate, and then drives the driven bevel gear 64 to rotate, and finally realizes the rotation of the screw 63, so that the sliding arm 5 slides to the right inside the fixed cylinder 4, so as to realize the length adjustment of the lifting arm, and then The personnel turns off the motor 1 61 and enables the electric hoist 10 to operate. The electric hoist 10 and the auxiliary wheel 9 work together to realize the retraction and extension of the hook 11, and then realize the lifting of the material. After the material is lifted, the personnel realizes the operation of the motor 2 71 through the control switch group 16. The output shaft of the motor 2 71 rotates to drive the two-way screw rod 72 to rotate, so that the sliding seat 73 moves toward the center of the control bin 13, and then drives the end of the connecting rod 74 close to the two-way screw rod 72 to move toward the center of the control bin 13, so that the end of the connecting rod 74 away from the two-way screw rod 72 pushes the turntable 12 to rotate through the connecting shaft 75, so as to realize the rotation of the pillar 1. The rotation of the pillar 1 drives the fixed cylinder 4 to rotate, and then drives the sliding arm 5 to rotate, so as to realize the lateral position adjustment of the lifted material. When the material moves to the required position, the personnel turns off the motor 2 71 through the control switch group 16, and enables the operation of the electric hoist 10 to realize the release of the material.

[0031] It is worth noting that the motor 1 61 disclosed in the above embodiment can use a 5IK120A-AF motor, the motor 2 71 can use a MHMF082L1U2M servo motor, the electric hoist 10 can use a CD1 electric hoist, the electric push rod 19 can use a HTW10A / B electric push rod, and the control switch group 16 is provided with control buttons corresponding to the motor 1 61, the motor 2 71, the electric hoist 10 and the electric push rod 19 and controlling their switches.

[0032] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A telescopic light crane, characterized in that: It comprises a support column (1), a telescopic driving mechanism (6) and a steering driving mechanism (7); The support (1) is fixedly connected to symmetrically distributed supports (2) at its upper end, a rotating shaft is rotatably connected between the supports (2), a steering seat (3) is fixedly connected to the middle of the rotating shaft, a fixed cylinder (4) is fixedly connected to the right end of the steering seat (3), a sliding arm (5) is slidably connected to the right end of the fixed cylinder (4), the right end of the sliding arm (5) and the left end of the upper surface of the fixed cylinder (4) are both fixedly connected to symmetrically distributed auxiliary seats (8), auxiliary wheels (9) are rotatably connected between the auxiliary seats (8), an electric hoist (10) is arranged at the left end of the support (1), the auxiliary wheels (9) are installed in cooperation with the rope of the electric hoist (10), the lower end of the rope is fixedly connected to a hook (11), the lower end of the support (1) is fixedly connected to a turntable (12), and the outer surface of the turntable (12) is rotatably connected to the upper end of the control cabin (13); A telescopic driving mechanism (6): the telescopic driving mechanism (6) is arranged at the left end of the fixed cylinder (4), and the right end of the telescopic driving mechanism (6) is threadedly connected to the left end of the sliding arm (5); Steering drive mechanism (7): arranged between the control compartment (13) and the turntable (12); The control switch group (16) is also included. The control switch group (16) is arranged in the middle of the left side surface of the support (1). The input end of the control switch group (16) is electrically connected to an external power supply.

2. A telescopic light crane according to claim 1, characterized in that: The telescopic driving mechanism (6) comprises a driving bevel gear (62), a screw rod (63) and a driven bevel gear (64); the screw rod (63) is rotatably connected to the interior of the fixed cylinder (4); the right end of the screw rod (63) is threadedly connected to the left end of the sliding arm (5); the driving bevel gear (62) is fixedly connected to the left end of the screw rod (63); the left end of the front inner wall of the fixed cylinder (4) is rotatably connected to the driving shaft; the driven bevel gear (64) is fixedly connected to the rear end of the driving shaft; and the driven bevel gear (64) is meshingly connected to the driving bevel gear (62).

3. A telescopic light crane according to claim 2, characterized in that: The telescopic drive mechanism (6) further comprises a motor 1 (61), wherein the motor 1 (61) is arranged at the left end of the front surface of the fixed cylinder (4), the output shaft of the motor 1 (61) is fixedly connected to the front end of the drive shaft, and the input end of the motor 1 (61) is electrically connected to the output end of the control switch group (16).

4. A telescopic light crane according to claim 1, characterized in that: The steering drive mechanism (7) comprises a bidirectional screw rod (72), a sliding seat (73), a connecting rod (74) and a connecting shaft (75); the bidirectional screw rod (72) is rotatably connected to the inside of the control chamber (13); the sliding seat (73) is threadedly connected to the front and rear ends of the bidirectional screw rod (72); the connecting rod (74) is rotatably connected to the middle part of the sliding seat (73); the connecting shaft (75) is fixedly connected to the left and right ends of the turntable (12); and one end of the connecting rod (74) away from the bidirectional screw rod (72) is rotatably connected to the middle part of the connecting shaft (75) adjacent to the bidirectional screw rod (72).

5. A telescopic light crane according to claim 4, characterized in that: The steering drive mechanism (7) further comprises a second motor (71), wherein the second motor (71) is arranged in the middle of the front surface of the control compartment (13), the output shaft of the second motor (71) is fixedly connected to the front end of a longitudinally adjacent bidirectional screw rod (72), and the input end of the second motor (71) is electrically connected to the output end of the control switch group (16).

6. A telescopic light crane according to claim 1, characterized in that: The right end of the support (1) and the lower end of the fixed cylinder (4) are both fixedly connected to a U-shaped seat (17), the interior of the U-shaped seat (17) is rotatably connected to a connecting seat (18), an electric push rod (19) is arranged between the connecting seats (18), and the input end of the electric push rod (19) is electrically connected to the output end of the control switch group (16).

7. A telescopic light crane according to claim 1, characterized in that: The lower end of the control compartment (13) is fixedly connected to a base (14), and the lower end of the base (14) is provided with evenly distributed moving wheels (15).

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