Automatic transmission mechanism for side hanging arm of crane

Abstract

The utility model discloses an automatic transmission mechanism for a side hanging arm of a crane, which belongs to the technical field of cranes and comprises a fixing frame, a servo motor is fixedly mounted on the side wall of the fixing frame through a mounting plate, and a stabilizing component is arranged on the upper surface of the fixing frame. According to the lifting device, the stabilizing assembly is arranged, under the action of threads, the movable block drives the lifting machine to move, the position of the lifting machine is adjusted, a threaded column can drive a driving toothed chain wheel to rotate synchronously when rotating, and under the action of a toothed chain, a driven toothed chain wheel can drive a threaded rod to rotate in a fixed box; at the moment, a threaded sleeve can drive a balancing weight to move in a fixed box under the action of threads on the outer surface of a threaded rod, and the threads on the outer surfaces of the threaded rod and a threaded column are opposite, so that the balancing weight and the lifting machine are opposite in direction, the weights of the two sides of a fixed frame are kept the same, and the shaking frequency of the transmission mechanism in the working process is reduced; and therefore, the stability of the transmission mechanism in the transmission process is ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to crane technical field especially relates to a crane side hanging arm automatic transmission mechanism. BACKGROUND

[0002] Crane refers to the vertical lifting and horizontal transport heavy within a certain range multi -action hoisting machinery, and the working characteristics of hoisting equipment are intermittent motion, that is, the corresponding mechanism of taking material, moving, unloading and other actions in a working cycle is alternately operated, and the transmission mechanism is required to be used to move the hanging arm in the use of the crane.

[0003] The current transmission mechanism moves the side hanging arm, and the transmission mechanism has different weights at both ends with the movement of the hanging arm, thereby reducing the overall stability of the transmission mechanism, preventing the side hanging arm from being unstable after long use, and therefore providing a crane side hanging arm automatic transmission mechanism. UTILITY MODEL CONTENTS

[0004] The utility model discloses a crane side hanging arm automatic transmission mechanism, which can solve the problem of different weights at both ends of the current transmission mechanism during use and reduce the stability.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a crane side hanging arm automatic transmission mechanism, comprising a fixed frame, a servo motor is fixedly installed on the side wall of the fixed frame through a mounting plate, a threaded column is fixedly installed at the output end of the servo motor, one end of the threaded column penetrates the inside of the fixed frame and extends to the other side wall outside the fixed frame, a moving block is screw-installed on the outer surface of the threaded column, the outer surface of the moving block is slidably connected with the inner wall of the fixed frame, a hoist is fixedly installed on the side wall of the moving block, and a stabilizing assembly is arranged on the upper surface of the fixed frame.

[0006] The stabilizing assembly comprises a fixed box, the lower surface of the fixed box is fixedly connected with the upper surface of the fixed frame, a threaded rod is rotatably installed on the inner side wall of the fixed box, one end of the threaded rod extends to the outside of the fixed box, and the threads on the outer surface of the threaded rod are opposite to the threads on the threaded column.

[0007] As a further description of the above technical scheme:

[0008] One end of the threaded rod is fixedly installed with a driven toothed chain wheel, one end of the threaded column is fixedly installed with a driving toothed chain wheel, and the driving toothed chain wheel and the driven toothed chain wheel are connected through a toothed chain transmission.

[0009] As a further description of the above technical scheme:

[0010] The outer surface of the threaded rod is threadedly mounted with a threaded sleeve, the outer surface of the threaded sleeve is fixedly mounted with a counterweight, and the outer surface of the counterweight is slidably connected with the inner wall of the fixed box.

[0011] As a further description of the above technical solution:

[0012] The upper surface of the counterweight is provided with a sliding groove, the inner wall of the bottom surface of the sliding groove is fixedly mounted with a protruding block, and the upper surface of the fixed box is provided with a lubricating assembly.

[0013] As a further description of the above technical solution:

[0014] The lubricating assembly comprises a mounting cover, the lower surface of the mounting cover is fixedly connected with the upper surface of the fixed box, the inner wall of the top surface of the mounting cover is fixedly mounted with a connecting spring, and one end of the connecting spring is fixedly mounted with a pressing plate.

[0015] As a further description of the above technical solution:

[0016] The lower surface of the pressing plate is fixedly mounted with a liquid storage bag, the side wall of the liquid storage bag is communicated with a liquid inlet pipe and a liquid outlet pipe, and one end of the liquid outlet pipe extends into the fixed box and is aligned with the threaded rod.

[0017] As a further description of the above technical solution:

[0018] The lower surface of the pressing plate is fixedly mounted with a connecting rod, one end of the connecting rod extends into the fixed box, and the other end of the connecting rod is fixedly mounted with a fixed plate.

[0019] As a further description of the above technical solution:

[0020] The lower surface of the fixed plate is fixedly mounted with a supporting rod, one end of the supporting rod is provided with a groove, the inner wall of the groove is rotatably mounted with a pulley through a rotating shaft, and the outer surface of the pulley is in contact with the inner wall of the sliding groove.

[0021] As a further description of the above technical solution, the beneficial effects of the present application are:

[0022] 1. The utility model discloses a stable assembly is set up, and the servo motor drives screw post to rotate, and under the action of screw, the moving block drives the crane to move to adjust the position of crane, and the screw post still drives the driving sprocket to rotate synchronously when rotating, and under the action of sprocket, the driven sprocket will drive screw rod to rotate in the fixed box, at this moment, under the action of the screw thread on the outer surface of screw rod, the threaded sleeve will drive the counterweight to move in the fixed box, because the screw thread on the outer surface of screw rod and screw post is opposite, therefore, the direction of counterweight and crane is opposite, make the weight on both sides of fixed frame keep same, reduce the shaking frequency of transmission mechanism in the working process, and then guarantee the stability of transmission mechanism in the transmission process.

[0023] 2. The utility model discloses a lubricating assembly is set up, and along with the movement of counterweight will drive the synchronous movement of boss, at this moment, under the action of pulley, the support rod will drive fixed plate to move, and fixed plate moves the pressing plate in the installation cover through the connecting rod, and under the action of connecting spring, the pressing plate will move up and down, and the pressing plate moves up and down in the process will extrude the storage liquid bag, and the lubricating fluid in the storage liquid bag that is extruded drops to the outer surface of screw rod through liquid outlet pipe, reduces the friction between threaded sleeve and screw rod when threaded sleeve moves, reduces the wear and tear between threaded sleeve and screw rod, and then guarantee the service life of structure, and the lubricating oil can reduce the friction between counterweight and fixed box, reduces the wear and tear of counterweight. DRAWINGS

[0024] Figure 1 It is a kind of crane side hanging arm automatic transmission mechanism's three-dimensional structure schematic view.

[0025] Figure 2 It is a kind of crane side hanging arm automatic transmission mechanism in stable assembly's exploded structure schematic view.

[0026] Figure 3 It is a kind of crane side hanging arm automatic transmission mechanism in lubricating assembly's exploded structure schematic view.

[0027] Figure 4 It is a kind of crane side hanging arm automatic transmission mechanism in Figure 3 The enlarged structure schematic view of place A in it.

[0028] Legend:

[0029] 1, fixed frame; 2, servo motor; 3, threaded column; 4, moving block; 5, hoist; 6, drive sprocket; 7, stabilizing assembly; 71, fixed box; 72, threaded rod; 73, threaded sleeve; 74, counterweight; 75, driven sprocket; 8, lubricating assembly; 81, mounting cover; 82, connecting spring; 83, pressing plate; 84, liquid storage bag; 85, connecting rod; 86, fixed plate; 87, support rod; 88, pulley; 9, sliding groove; 10, protrusion. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0031] Please refer to Figures 1-4 The utility model provides a kind of technical scheme: a crane side hanging arm automatic transmission mechanism, including fixed frame 1, the side wall of the fixed frame 1 is fixedly installed with servo motor 2 by mounting plate, the output end of the servo motor 2 is fixedly installed with threaded column 3, one end of the threaded column 3 is through the inside of fixed frame 1 and extends to the other side wall outside of fixed frame 1, the outer surface of the threaded column 3 is threadedly installed with moving block 4, the outer surface of the moving block 4 is slidably connected with the inner wall of fixed frame 1, the side wall of the moving block 4 is fixedly installed with hoist 5, the upper surface of the fixed frame 1 is provided with stabilizing assembly 7;

[0032] The stabilizing assembly 7 includes fixed box 71, the lower surface of the fixed box 71 is fixedly connected with the upper surface of fixed frame 1, the inner side wall of the fixed box 71 is rotatably installed with threaded rod 72, one end of the threaded rod 72 extends to the outside of fixed box 71, the threaded rod 72 is opposite to the thread on the outer surface of threaded column 3, one end of the threaded rod 72 is fixedly installed with driven sprocket 75, one end of the threaded column 3 is fixedly installed with drive sprocket 6, the drive sprocket 6 and driven sprocket 75 are connected by sprocket chain transmission, the outer surface of the threaded rod 72 is threadedly installed with threaded sleeve 73, the outer surface of the threaded sleeve 73 is fixedly installed with counterweight 74, the outer surface of the counterweight 74 is slidably connected with the inner wall of fixed box 71, the upper surface of the counterweight 74 is provided with sliding groove 9, the bottom inner wall of the sliding groove 9 is fixedly installed with protrusion 10, the upper surface of the fixed box 71 is provided with lubricating assembly 8.

[0033] Its specific implementation is: the fixed frame 1 is connected with the main arm of the crane, the servo motor 2 drives the threaded column 3 to rotate, the moving block 4 drives the lifting machine 5 to move under the action of the thread, so that the position of the lifting machine 5 is adjusted, the threaded column 3 also drives the driving sprocket 6 to rotate synchronously when rotating, the driven sprocket 75 drives the threaded rod 72 to rotate in the fixed box 71 under the action of the sprocket chain, at this time the threaded sleeve 73 drives the counterweight 74 to move in the fixed box 71 under the action of the thread on the outer surface of the threaded rod 72, because the thread on the outer surface of the threaded rod 72 is opposite to that of the threaded column 3, therefore the direction of the counterweight 74 is opposite to that of the lifting machine 5.

[0034] The lubricating assembly 8 comprises a mounting cover 81, the lower surface of the mounting cover 81 is fixedly connected with the upper surface of the fixed box 71, the inner wall of the top surface of the mounting cover 81 is fixedly installed with a connecting spring 82, one end of the connecting spring 82 is fixedly installed with a pressing plate 83, the lower surface of the pressing plate 83 is fixedly installed with a liquid storage bag 84, the side wall of the liquid storage bag 84 is communicatedly installed with a liquid inlet pipe and a liquid outlet pipe, one end of the liquid outlet pipe extends to the inside of the fixed box 71 and is aligned with the threaded rod 72, the lower surface of the pressing plate 83 is fixedly installed with a connecting rod 85, one end of the connecting rod 85 extends to the inside of the fixed box 71, one end of the connecting rod 85 is fixedly installed with a fixed plate 86, the lower surface of the fixed plate 86 is fixedly installed with a supporting rod 87, one end of the supporting rod 87 is provided with a groove, the inner wall of the groove is rotatably installed with a pulley 88 through a rotating shaft, the outer surface of the pulley 88 is in contact with the inner wall of the sliding groove 9.

[0035] Its specific implementation is: the movement of the counterweight 74 drives the protruding block 10 to move synchronously, at this time the supporting rod 87 drives the fixed plate 86 to move under the action of the pulley 88, the fixed plate 86 drives the pressing plate 83 to move in the mounting cover 81 through the connecting rod 85, the pressing plate 83 moves up and down under the action of the connecting spring 82, the liquid storage bag 84 is extruded in the process of the pressing plate 83 moving up and down, the lubricating liquid in the extruded liquid storage bag 84 drops to the outer surface of the threaded rod 72 through the liquid outlet pipe, and the friction between the threaded sleeve 73 and the threaded rod 72 is reduced when the threaded sleeve 73 moves.

[0036] Working principle: the fixed frame 1 is connected with the main arm of the crane, the servo motor 2 drives the threaded column 3 to rotate, the moving block 4 drives the lifting machine 5 to move under the action of the screw, so as to adjust the position of the lifting machine 5, the threaded column 3 will also drive the driving sprocket 6 to rotate synchronously when rotating, the driven sprocket 75 will drive the threaded rod 72 to rotate in the fixed box 71 under the action of the chain, at this time the threaded sleeve 73 will drive the counterweight 74 to move in the fixed box 71 under the action of the screw thread on the outer surface of the threaded rod 72, since the screw thread on the outer surface of the threaded rod 72 is opposite to that of the threaded column 3, therefore the direction of the counterweight 74 is opposite to that of the lifting machine 5, the movement of the counterweight 74 will drive the lug 10 to move synchronously, at this time the support rod 87 will drive the fixed plate 86 to move under the action of the pulley 88, the fixed plate 86 drives the pressing plate 83 to move in the installation cover 81 through the connecting rod 85, the pressing plate 83 will move up and down under the action of the connecting spring 82, the storage bag 84 will be extruded in the process of the pressing plate 83 moving up and down, the lubricating liquid in the storage bag 84 will drop to the outer surface of the threaded rod 72 through the liquid outlet pipe, which reduces the friction between the threaded sleeve 73 and the threaded rod 72 when the threaded sleeve 73 moves.

[0037] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A crane side-mounted boom automatic transmission mechanism comprising a fixed frame (1), characterized in that: The side wall of the fixed frame (1) is fixedly installed with a servo motor (2) through a mounting plate, the output end of the servo motor (2) is fixedly installed with a threaded column (3), one end of the threaded column (3) penetrates the inside of the fixed frame (1) and extends to the other side wall outside the fixed frame (1), the outer surface of the threaded column (3) is threadedly installed with a moving block (4), the outer surface of the moving block (4) is slidably connected with the inner wall of the fixed frame (1), the side wall of the moving block (4) is fixedly installed with a hoist (5), and the upper surface of the fixed frame (1) is provided with a stabilizing assembly (7). The stabilizing assembly (7) comprises a fixed box (71), the lower surface of the fixed box (71) is fixedly connected with the upper surface of the fixed frame (1), the inner side wall of the fixed box (71) is rotatably installed with a threaded rod (72), one end of the threaded rod (72) extends to the outside of the fixed box (71), and the threads on the outer surface of the threaded rod (72) are opposite to the threads on the threaded column (3).

2. A crane side-mounted boom automatic transmission mechanism according to claim 1, characterized in that, One end of the threaded rod (72) is fixedly installed with a driven toothed chain wheel (75), one end of the threaded column (3) is fixedly installed with a driving toothed chain wheel (6), and the driving toothed chain wheel (6) is drivingly connected with the driven toothed chain wheel (75) through a toothed chain.

3. A side-slung boom automatic transmission mechanism for a crane according to claim 2, characterized in that, The outer surface of the threaded rod (72) is threadedly installed with a threaded sleeve (73), the outer surface of the threaded sleeve (73) is fixedly installed with a counterweight (74), and the outer surface of the counterweight (74) is slidably connected with the inner wall of the fixed box (71).

4. A side-slung boom automatic transmission mechanism for a crane according to claim 3, characterized in that, The upper surface of the counterweight (74) is provided with a sliding groove (9), the inner wall of the bottom surface of the sliding groove (9) is fixedly installed with a protruding block (10), and the upper surface of the fixed box (71) is provided with a lubricating assembly (8).

5. A side-swing boom automatic transmission mechanism for a crane according to claim 4, characterized in that, The lubricating assembly (8) comprises a mounting cover (81), the lower surface of the mounting cover (81) is fixedly connected with the upper surface of the fixed box (71), the top inner wall of the mounting cover (81) is fixedly installed with a connecting spring (82), one end of the connecting spring (82) is fixedly installed with a pressing plate (83).

6. A side-swing boom automatic transmission mechanism for a crane according to claim 5, wherein The lower surface of the pressing plate (83) is fixedly installed with a liquid storage bag (84), the side wall of the liquid storage bag (84) is communicatively installed with a liquid inlet pipe and a liquid outlet pipe, one end of the liquid outlet pipe extends to the inside of the fixed box (71) and is aligned with the threaded rod (72).

7. A side-swing boom automatic transmission mechanism for a crane according to claim 6, wherein The lower surface of the pressing plate (83) is fixedly installed with a connecting rod (85), one end of the connecting rod (85) extends to the inside of the fixed box (71), and one end of the connecting rod (85) is fixedly installed with a fixed plate (86).

8. A side-swing boom automatic transmission mechanism for a crane according to claim 7, characterized in that, The lower surface of the fixed plate (86) is fixedly installed with a supporting rod (87), one end of the supporting rod (87) is provided with a groove, the inner wall of the groove is rotatably installed with a pulley (88) through a rotating shaft, and the outer surface of the pulley (88) is in contact with the inner wall of the sliding groove (9).

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