Hoisting portal frame convenient to move

Abstract

The utility model relates to the field of hoisting portal frames, and discloses a hoisting portal frame convenient to move, which comprises two bases, a moving mechanism, a transverse frame, a hoisting mechanism and a restraining mechanism, sliding grooves are formed in the lower ends of the bases, and upper fixing blocks are fixedly connected to the front ends and the rear ends of the top surfaces in the bases; the device comprises a base, a moving mechanism is arranged in the base, the moving mechanism comprises a double-end bidirectional threaded rod and two supporting plates, the outer wall of the front end of the base is fixedly connected with a first protection box, and a first servo motor is arranged on the bottom face of the interior of the first protection box; the front end and the rear end of the outer wall of the rod body of the double-end two-way threaded rod are each provided with a pair of threads opposite in direction. According to the utility model, the sliding block driven by the first servo motor in the moving mechanism is matched with the upper connecting rod and the lower connecting rod, so that the loading wheel ascends or descends, and the hook rope wound on the wire collecting rod in the inhibiting mechanism is used for tensioning the sling of the winch, so that the shaking of an object is inhibited.

Description

TECHNICAL FIELD

[0001] The utility model relates to a hoisting gantry field especially, relates to a hoisting gantry convenient to remove. BACKGROUND

[0002] The hoisting gantry is also called gantry or gantry crane, and is a mechanical device for hoisting and transporting heavy objects.

[0003] However, the existing hoisting gantry convenient to remove on the market mostly adopts weight-bearing wheel support, and the weight-bearing wheel support capacity and stability are lower compared with the form that the base directly contacts the ground, which may cause the whole hoisting gantry to deviate in position when hoisting heavy objects, is not conducive to the normal implementation of hoisting operation, and the existing hoisting gantry convenient to remove on the market may cause the hoisted object to shake greatly when hoisting and moving the object, which may collide with other objects or workers, and has safety hazards.

[0004] Therefore, the skilled in the art provides a hoisting gantry convenient to remove to solve the problems in the background. CONTENT OF THE UTILITY MODEL

[0005] The utility model discloses a hoisting gantry convenient to remove, which is provided by the skilled in the art to solve the problems in the prior art.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] The lifting gantry convenient to move, including two base, moving mechanism, cross frame, hoisting mechanism and suppression mechanism, the lower end of the base is provided with sliding groove, the front end and the rear end of the internal top surface of the base are fixedly connected with the upper fixed block, the inside of the base is provided with moving mechanism, the moving mechanism includes double-end two-way threaded rod and two supporting plates, the outer wall of the front end of the base is fixedly connected with the first protection box, the bottom surface of the inside of the first protection box is provided with the first servo motor, a pair of opposite threads are formed in the front end and the rear end of the outer wall of the double-end two-way threaded rod, two sliding blocks are threadedly connected with the front end and the rear end of the outer wall of the double-end two-way threaded rod respectively, the sliding blocks slide in the sliding groove, the upper connecting rod and the lower connecting rod are hingedly connected on the both sides of the sliding block, the upper connecting rod is hingedly connected with the upper fixed block on the side close to the center of the upper fixed block, the lower connecting rod is hingedly connected with the lower fixed block on the side close to the center of the upper fixed block, two weight wheels are fixedly connected on the both sides of the lower end of the supporting plate;

[0008] The lower end of the cross frame is provided with a hoisting mechanism, the middle part of the lower end of the cross frame is provided with a sliding groove, the inner wall of one side of the sliding groove is provided with a second servo motor, the output shaft of the second servo motor is fixedly connected with a transverse threaded rod, the rear end of the transverse threaded rod is rotatably connected with the inner wall of the other side of the sliding groove, the both sides of the lower end of the cross frame are fixedly connected with the stand, the lower end of the stand is fixedly connected with the base, the inside of the stand is provided with a suppression mechanism, the suppression mechanism includes a cable rod;

[0009] Through the above technical scheme, the double-end two-way threaded rod in the moving mechanism is threadedly connected with the four sliding blocks sliding in the sliding groove, the distance between the sliding blocks is changed under the driving of the first servo motor, and then the upper connecting rod and the lower connecting rod are hingedly connected with the upper fixed block and the lower fixed block, so that the weight wheels under the supporting plate fixedly connected with the lower fixed block are lifted or lowered, the base is in contact with the ground when lifted, the weight wheels are off the ground, the supporting capacity and stability during lifting heavy objects are improved, and the base is off the ground when lowered, the weight wheels are in contact with the ground, so that the staff can move the lifting gantry.

[0010] Further, the middle part of the outer wall of the front end of the stand is fixedly connected with the second protection box, the middle part of the side close to the center of the cross frame of the stand is provided with a rotating groove, the bottom surface of the inside of the second protection box is provided with a third servo motor, the middle part of the outer wall of the cable rod is provided with a hook rope, one side of the hook rope close to the center of the cross frame penetrates through the rotating groove to the outside of the stand;

[0011] Through the technical scheme, the hook rope wound on the collecting rod is hooked to the sling on the winch through the restraining mechanism, the collecting rod fixedly connected with the rotating shaft is driven to rotate by the third servo motor in the second protection box, and the two hook ropes are tightened or loosened with the change of the position of the winch, so that the swinging of the hoisting gantry when hoisting objects and moving is restrained to a certain extent.

[0012] Further, the output shaft of the first servo motor penetrates the first protection box and is fixedly connected with the double-head double-way threaded rod.

[0013] Through the technical scheme, the double-head double-way threaded rod fixedly connected with the output shaft of the first servo motor penetrates the first protection box, and the sliding block is threadedly connected with the double-head double-way threaded rod, so that the first servo motor can drive the sliding block to move in the sliding groove.

[0014] Further, the rear end of the double-head double-way threaded rod penetrates the base and is rotatably connected with the inner wall of the rear end of the sliding groove.

[0015] Through the technical scheme, the rear end of the double-head double-way threaded rod penetrates the base and is rotatably connected with the inner wall of the rear end of the sliding groove, and the output shaft of the first servo motor is fixedly connected with the double-head double-way threaded rod, so that the double-head double-way threaded rod can stably rotate in the sliding groove.

[0016] Further, the lower ends of the lower fixed blocks are fixedly connected with the support plates, and the outer walls on both sides of the support plates penetrate the sliding grooves to the outside of the base.

[0017] Through the technical scheme, the outer walls on both sides of the support plates fixedly connected with the lower ends of the lower fixed blocks penetrate the sliding grooves to the outside of the base, so that the load wheels can be fixed on the support plates and arranged on both sides of the base.

[0018] Further, the middle part of the outer wall of the transverse threaded rod is threadedly connected with the connecting block, and the winch is fixedly connected to the lower end of the connecting block.

[0019] Through the technical scheme, the winch fixedly connected to the lower end of the connecting block threadedly connected with the transverse threaded rod can be used by the staff to hoist the object, and the winch can be moved left and right to change the hoisting position by driving the transverse threaded rod to rotate by the second servo motor.

[0020] Further, the battery pack is fixedly connected in the cavity of the lower end of the column on the other side, and the PLC control panel is fixedly connected to the lower end of the outer wall on the other side.

[0021] Through the technical scheme, the battery pack in the stand column on the other side supplies power for the hoisting gantry frame convenient to move, and the hoisting gantry frame convenient to move works while moving, and the staff can conveniently control the hoisting gantry frame convenient to move through the PLC control panel.

[0022] Further, the output shaft of the third servo motor penetrates the second protection box and is fixedly connected with the collecting rod, and the rear end of the collecting rod is rotationally connected with the inner wall of the rear end of the rotating groove.

[0023] Through the technical scheme, the collecting rod fixedly connected with the output shaft of the third servo motor is rotationally connected with the inner wall of the rear end of the rotating groove, so that the rotating of the collecting rod in the rotating groove is more stable under the driving of the third servo motor in the second protection box, and the hook rope is better tightened or loosened.

[0024] The utility model has the advantages of the following:

[0025] 1. The utility model discloses a hoisting gantry frame convenient to move, which is characterized in that the double-end double-direction threaded rod in the moving mechanism is in threaded connection with the four sliding blocks, the distance between the sliding blocks is changed under the driving of the first servo motor, then the upper connecting rod and the upper fixed block are hingedly connected, the lower connecting rod and the lower fixed block are hingedly connected, the load wheels on the supporting plates are lifted, the base is in contact with the ground, and the supporting capacity and stability during hoisting heavy objects are improved.

[0026] 2. The utility model discloses a hoisting gantry frame convenient to move, which is characterized in that the hook rope wound on the collecting rod in the restraining mechanism hooks the sling on the winch, the third servo motor drives the rotating of the collecting rod, the hook rope is tightened, the swinging of the hoisting gantry frame when hoisting objects and moving objects is restrained to a certain extent, the possibility of collision with other objects or staff is reduced, and the safety of hoisting operation is improved. DRAWINGS

[0027] Figure 1 It is a main body mechanism schematic view of the hoisting gantry frame convenient to move.

[0028] Figure 2 It is an axial section view of the hoisting gantry frame convenient to move.

[0029] Figure 3 It is an explosion view of the base, double-end double-direction threaded rod and sliding block of the hoisting gantry frame convenient to move.

[0030] Figure 4 It is a side section view of the stand column, base and sliding block of the hoisting gantry frame convenient to move.

[0031] Figure 5 is an enlarged view of A of Figure 2 ;

[0032] Figure 6 is an enlarged view of B of Figure 3 ;

[0033] Figure 7 is an enlarged view of C of Figure 4 ;

[0034] Figure 8 is an enlarged view of D of Figure 4 .

[0035] Legend:

[0036] 1, base; 2, moving mechanism; 201, sliding groove; 202, first protection box; 203, first servo motor; 204, double-head bidirectional threaded rod; 205, sliding block; 206, upper fixed block; 207, lower fixed block; 208, support plate; 209, weight-bearing wheel; 210, upper connecting rod; 211, lower connecting rod; 3, stand column; 4, battery pack; 5, PLC control panel; 6, cross frame; 7, hoisting mechanism; 701, sliding groove; 702, second servo motor; 703, transverse movement threaded rod; 704, connecting block; 705, winch; 8, suppression mechanism; 801, rotating groove; 802, second protection box; 803, third servo motor; 804, line concentrator rod; 805, hook cable. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0038] With reference to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 8 , the present application provides an embodiment:

[0039] The utility model provides a hoist gantry convenient to remove, including two base 1, moving mechanism 2, cross 6, hoist mechanism 7 and restraint mechanism 8, the lower end of base 1 is all set up sliding groove 201, the top surface of inside of base 1 front end and rear end are all fixedly connected with upper fixed block 206, the inside of base 1 is provided with moving mechanism 2, moving mechanism 2 includes double -end two -way threaded rod 204 and two support plates 208, the outer wall of base 1 front end is all fixedly connected with first protection box 202, the bottom surface in first protection box 202 is provided with first servo motor 203, the outer wall of double -end two -way threaded rod 204 shank is all set up a pair of opposite threads in front end and rear end, the outer wall of double -end two -way threaded rod 204 shank is all respectively screw -threaded with two sliding blocks 205 in front end and rear end, sliding block 205 all slide in the inside of sliding groove 201, the both sides of sliding block 205 are all hinged and connected with upper connecting rod 210 and lower connecting rod 211, and the side of upper connecting rod 210 near the center of upper fixed block 206 is hinged and connected with upper fixed block 206, and the side of lower connecting rod 211 near the center of upper fixed block 206 is hinged and connected with lower fixed block 207, and the both sides of support plate 208 lower end are all fixedly connected with two weight wheels 209;

[0040] The lower end of cross 6 is provided with hoist mechanism 7, hoist mechanism 7 includes connecting block 704, the middle part of the lower end of cross 6 is set up with sliding slot 701, the inner wall of one side of sliding slot 701 is provided with second servo motor 702, the output shaft of second servo motor 702 is fixedly connected with transverse threaded rod 703, the rear end of transverse threaded rod 703 is rotatably connected with the inner wall of the other side of sliding slot 701, the both sides of the lower end of cross 6 are all fixedly connected with stand 3, and the lower end of stand 3 is all fixedly connected with base 1, and the inside of stand 3 is provided with restraint mechanism 8, and restraint mechanism 8 includes line rod 804.

[0041] The output shaft of the first servo motor 203 penetrates the first protection box 202 and is fixedly connected with the double-head bidirectional threaded rod 204. The double-head bidirectional threaded rod 204, which penetrates the first protection box 202 and is fixedly connected with the output shaft of the first servo motor 203, is threadedly connected with the sliding block 205 and the double-head bidirectional threaded rod 204, so that the first servo motor 203 can drive the sliding block 205 to move in the sliding groove 201. The rear end of the double-head bidirectional threaded rod 204 penetrates the base 1 and is rotationally connected with the inner wall at the rear end of the sliding groove 201. The rear end of the double-head bidirectional threaded rod 204 penetrates the base 1 and is rotationally connected with the inner wall at the rear end of the sliding groove 201, and the output shaft of the first servo motor 203 is fixedly connected with the double-head bidirectional threaded rod 204, so that the double-head bidirectional threaded rod 204 can stably rotate in the sliding groove 201. The lower ends of the lower fixed blocks 207 are fixedly connected with the support plates 208. The outer walls on both sides of the support plates 208 penetrate the sliding groove 201 to the outside of the base 1. The outer walls on both sides of the support plates 208, which are fixedly connected with the lower ends of the lower fixed blocks 207, penetrate the sliding groove 201 to the outside of the base 1, so that the load wheels 209 can be fixed to the support plates 208 and arranged on both sides of the base 1. The middle part of the outer wall of the transverse threaded rod 703 is threadedly connected with the connecting block 704. The winch 705 is fixedly connected to the lower end of the connecting block 704. The staff can use the winch 705 to lift the object, and the winch 705 can move left and right to change the lifting position by rotating the transverse threaded rod 703 driven by the second servo motor 702. The battery pack 4 is fixedly connected in the cavity at the lower end of the other side of the stand 3, and the PLC control panel 5 is fixedly connected to the lower end of the outer wall of the other side. The battery pack 4 in the other side of the stand 3 provides power for the movable lifting gantry, and the staff can conveniently control the movable lifting gantry by the PLC control panel 5.

[0042] Referring to Figure 1 , Figure 2 , Figure 4 and Figure 7 , the middle part of the outer wall of the front end of the stand 3 is fixedly connected with the second protection box 802. The middle part of one side of the stand 3 near the center of the cross frame 6 is provided with a rotating groove 801. The third servo motor 803 is arranged on the bottom surface in the second protection box 802. The middle part of the outer wall of the rod body of the collecting rod 804 is provided with the hook cable 805. The hook cable 805 penetrates the rotating groove 801 to the outside of the stand 3 near the center of the cross frame 6.

[0043] The output shaft of the third servo motor 803 penetrates the second protection box 802 and is fixedly connected with the collecting rod 804, the rear end of the collecting rod 804 is rotationally connected with the inner wall of the rear end of the rotating groove 801, the collecting rod 804 fixedly connected with the output shaft of the third servo motor 803 is rotationally connected with the inner wall of the rear end of the rotating groove 801, so that the rotation of the collecting rod 804 in the rotating groove 801 is more stable under the driving of the third servo motor 803 in the second protection box 802, and the hook cable 805 is better tensioned or loosened.

[0044] Working principle: when using the lifting gantry convenient to move, the worker first controls the second servo motor 702 through the PLC control panel 5 to drive the horizontal moving screw rod 703 to rotate, so that the connecting block 704 screwedly connected with the horizontal moving screw rod 703 moves to the required position along the horizontal frame 6, the hoist 705 is started to lower the sling to hook the object, the two hook cables 805 on the two upright columns 3 are pulled out, the worker hooks the hoisted object with the two hook cables 805, cooperates with the PLC control panel 5 to control the hoist 7 to retract the sling to hoist the object, and then controls the two third servo motors 803 on the two upright columns 3 to drive the collecting rod 804 in the rotating groove 801 to rotate, controls the two third servo motors 803 through the PLC control panel 5, if the object needs to move to the left, the third servo motor 803 on the left tightens the hook cable 805, and the third servo motor 803 on the right loosens the hook cable 805, if the object needs to move to the right, the third servo motor 803 on the right tightens the hook cable 805, and the third servo motor 803 on the left loosens the hook cable 805, the worker controls the two third servo motors 803 through the PLC control panel 5 to change the loosening or tensioning of the two hook cables 805 according to the position of the object, so as to prevent the hoisted object from shaking greatly when the hoist 705 moves the object along the horizontal frame 6, and avoid colliding with personnel or equipment, then the worker can control the first servo motor 203 in the moving mechanism 2 through the PLC control panel 5 to drive the double-head bidirectional screw rod 204 fixedly connected with the output shaft of the first servo motor 203 to rotate, so that the four sliding blocks 205 screwedly connected with the double-head bidirectional screw rod 204 slide in the sliding groove 201, and then cooperate with the hinged connection of the upper connecting rod 210 and the upper fixed block 206 and the hinged connection of the lower connecting rod 211 and the lower fixed block 207, so that the supporting plate 208 is lowered, the load wheel 209 touches the ground, the base 1 is off the ground, the worker moves the lifting gantry to other positions, raises the supporting plate 208, the load wheel 209 is off the ground, the base 1 touches the ground, and then the next hoisting work is carried out.

[0045] It should be pointed out finally that: the above only for the preferred specific embodiments of the present application, and is not used to limit the present application, although the present application is described in detail with reference to the foregoing specific embodiments, for the skilled in the art, it still can be modified to the technical solutions recorded in the foregoing each specific embodiment, or to the equivalent replacement of part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the scope of protection of the present application.

Claims

1. A mobile gantry crane comprising two bases (1), a mobile mechanism (2), a crossbar (6), a hoisting mechanism (7) and a restraining mechanism (8), characterized in that: The lower end of the base (1) is provided with a sliding groove (201), the front end and the rear end of the top surface of the base (1) are fixedly connected with an upper fixed block (206), the base (1) is internally provided with a moving mechanism (2), the moving mechanism (2) comprises a double-head bidirectional threaded rod (204) and two supporting plates (208), the outer wall of the front end of the base (1) is fixedly connected with a first protection box (202), the bottom surface of the inside of the first protection box (202) is provided with a first servo motor (203), a pair of opposite threads are formed in the front end and the rear end of the outer wall of the rod body of the double-head bidirectional threaded rod (204), the front end and the rear end of the outer wall of the rod body of the double-head bidirectional threaded rod (204) are respectively threadedly connected with two sliding blocks (205), the sliding blocks (205) slide in the inside of the sliding groove (201), the two sides of the sliding block (205) are hingedly connected with an upper connecting rod (210) and a lower connecting rod (211), the side close to the center of the upper fixed block (206) of the upper connecting rod (210) is hingedly connected with the upper fixed block (206), the side close to the center of the upper fixed block (206) of the lower connecting rod (211) is hingedly connected with a lower fixed block (207), the two sides of the lower end of the supporting plate (208) are fixedly connected with two weight-bearing wheels (209). The lower end of the cross frame (6) is provided with a hoisting mechanism (7), the hoisting mechanism (7) comprises a connecting block (704), the middle part of the lower end of the cross frame (6) is provided with a sliding groove (701), the inner wall of one side of the sliding groove (701) is provided with a second servo motor (702), the output shaft of the second servo motor (702) is fixedly connected with a transverse threaded rod (703), the rear end of the transverse threaded rod (703) is rotatably connected with the inner wall of the other side of the sliding groove (701), the two sides of the lower end of the cross frame (6) are fixedly connected with a stand (3), the lower end of the stand (3) is fixedly connected with the base (1), the inside of the stand (3) is provided with a restraining mechanism (8), the restraining mechanism (8) comprises a collecting rod (804).

2. A mobile gantry according to claim 1, characterized in that: The middle part of the outer wall of the front end of the stand (3) is fixedly connected with a second protection box (802), the middle part of the side close to the center of the cross frame (6) of the stand (3) is provided with a rotating groove (801), the bottom surface of the inside of the second protection box (802) is provided with a third servo motor (803), the middle part of the outer wall of the rod body of the collecting rod (804) is wound with a hook rope (805), one side close to the center of the cross frame (6) of the hook rope (805) penetrates through the rotating groove (801) to the outside of the stand (3).

3. A mobile gantry according to claim 1, wherein: The output shaft of the first servo motor (203) penetrates through the first protection box (202) and is fixedly connected with the double-head bidirectional threaded rod (204).

4. The mobile gantry of claim 1, wherein: The rear end of the double-head bidirectional threaded rod (204) penetrates through the base (1) and is rotatably connected with the inner wall of the rear end of the sliding groove (201).

5. The mobile gantry of claim 1, wherein: The lower end of the lower fixing block (207) is fixedly connected with the supporting plate (208), and the outer walls on both sides of the supporting plate (208) penetrate through the sliding grooves (201) to the outside of the base (1).

6. A mobile gantry according to claim 1, wherein: The middle part of the outer wall of the transverse movement threaded rod (703) is threadedly connected with the connecting block (704), and the lower end of the connecting block (704) is fixedly connected with the winch (705).

7. The mobile gantry of claim 1, wherein: The cavity in the lower end of the column (3) on the other side is fixedly connected with the battery pack (4), and the lower end of the outer wall on the other side is fixedly connected with the PLC control panel (5).

8. A mobile gantry according to claim 2, wherein: The output shaft of the third servo motor (803) penetrates through the second protection box (802) and is fixedly connected with the collecting rod (804), and the rear end of the collecting rod (804) is rotationally connected with the inner wall of the rear end of the rotating groove (801).

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