Electric windproof fastening system of crane

Abstract

The utility model provides an electric windproof securing system for a crane. The electric windproof securing system comprises an electric pull rod; an anchor socket; the electric control box comprises a controller electrically connected with the electric pull rod, the electric pull rod comprises a tubular rod body, a lug ring, a nut, a driving motor, a speed reducer and a hollow tubular composite lead screw, the lug ring and the nut are fixedly arranged at the upper end and the lower end of the rod body respectively, and the driving motor, the speed reducer and the composite lead screw are sequentially installed in the rod body from top to bottom. The composite screw rod is sleeved on the output shaft of the speed reducer in a circumferentially fixed and axially slidable manner, the outer surface of the composite screw rod is provided with an external thread matched with the internal thread of the nut, the anchor seat comprises a base and a nut plate fixedly arranged on the base, and the center position of the nut plate is provided with an internal thread matched with the external thread of the composite screw rod. The device has the advantages of simple structure, convenience in operation, high fastening efficiency, automation, safety, reliability and the like, and the safety and the operation efficiency of the crane can be effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the hoisting machinery technical field applied to the port, wharf, stockyard and so on occasion, concretely relates to a crane electric windproof system. BACKGROUND

[0002] The crane is important equipment for port loading and unloading operation, and its safety is crucial. The windproof system is mainly used for preventing the crane from being blown by strong wind such as typhoon or gust in non-working state, causing safety accidents such as crane overturning, and timely and reliable windproof before the arrival of typhoon and gust is an important guarantee for safe operation of the crane. The traditional windproof of the crane is mostly connected by manpower, and then manually tightened.

[0003] However, the traditional windproof system has the following disadvantages: (1) the windproof rod is manually tied by manpower, which is laborious and low in efficiency, a large number of manpower resources are needed to complete the tying work when the typhoon comes, and once the gust comes, the manpower cannot meet the requirement, in fact, it cannot play the role of windproof, and safety accidents are easy to occur; (2) low automation, as the tying is manually done, it is difficult to realize automatic control and cannot be linked with other systems of the crane. UTILITY MODEL CONTENTS

[0004] In order to solve the above-mentioned problems of the prior art, the utility model aims to provide a crane electric windproof system.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] The utility model provides a crane electric windproof system, which has the following characteristics: an electric rod is used for hanging on the main machine of the crane; an anchor base is used for being installed on the wharf foundation; and an electric control box contains a controller electrically connected with the electric rod, wherein the electric rod contains a tubular rod body, an earring, a nut, a driving motor, a speed reducer and a composite screw rod in the form of a hollow pipe, the earring and the nut are fixedly arranged at the upper end and the lower end of the rod body respectively, the driving motor, the speed reducer and the composite screw rod are sequentially installed in the rod body from top to bottom, the composite screw rod is sleeved on the output shaft of the speed reducer in the form of circumferential fixed and axial slidable, and the outer surface has an outer thread matched with the inner thread of the nut, the anchor base contains a base and a nut plate fixedly arranged on the base, and the central position of the nut plate has an inner thread matched with the outer thread of the composite screw rod.

[0007] In the crane electric wind-preventing fixing system, the composite screw rod and the output shaft of the speed reducer are circumferentially fixed and axially slidable through the following structure: a guide key is arranged on the outer surface of the output shaft, and a key groove extending along the axial direction of the composite screw rod and matched with the guide key is arranged in the inner hole of the composite screw rod.

[0008] In the crane electric wind-preventing fixing system, the guide key is a spline.

[0009] In the crane electric wind-preventing fixing system, the rod body is provided with an upper position sensor and a lower position sensor for detecting the position of the composite screw rod and electrically connected with the controller, respectively.

[0010] In the crane electric wind-preventing fixing system, the rod body and the nut are coaxially arranged.

[0011] In the crane electric wind-preventing fixing system, the base is composed of an upper plate, a pipe base body and a bottom plate.

[0012] In the crane electric wind-preventing fixing system, the bottom plate is provided with mounting screw holes connected with foundation embedded anchor bolts.

[0013] In the crane electric wind-preventing fixing system, the inner hole of the ear ring is provided with a joint bearing.

[0014] In the crane electric wind-preventing fixing system, the manual device is arranged on the rod body at a position corresponding to the upper end of the driving motor, and the manual device is connected with the rotating shaft of the driving motor.

[0015] Compared with the prior art, the crane electric wind-preventing fixing system has the following advantages:

[0016] (1) simple structure: motor reducer transmission drives the composite screw rod and the base nut to screw or unscrew, and the fixing is reliable;

[0017] (2) simple operation: electric drive, one key can realize the fixing and release of the electric pull rod and the foundation anchor base, and the efficiency is high;

[0018] (3) high automation, safe and reliable: linkage control with the crane cart running mechanism can improve the automation level and safety control reliability of the crane, and no human intervention is needed. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is the structure schematic diagram of the crane electric wind prevention system in the non-fixed state in the embodiment of the utility model;

[0020] Figure 2 is the structure schematic diagram of the electric pull rod in the embodiment of the utility model; and

[0021] Figure 3 is the structure schematic diagram of the anchor base in the embodiment of the utility model.

[0022] In the drawing: 100 is electric pull rod, 101 is ear ring, 102 is manual device, 103 is drive motor, 104 is rod body, 105 is speed reducer, 106 is composite screw rod, 107 is nut, 108 is lower position sensor, 109 is upper position sensor, 110 is junction box, 200 is anchor base, 201 is nut plate, 202 is base, 300 is electric control box. DETAILED DESCRIPTION

[0023] The concept, specific structure and generated technical effects of the utility model will be further explained in combination with the drawings to fully understand the purpose, features and effects of the utility model.

[0024] <EMBODIMENT>

[0025] Figure 1 is the cross-sectional structure schematic diagram of the crane electric wind prevention system in the non-fixed state in the embodiment of the utility model.

[0026] As Figure 1 shown, in the embodiment, the crane electric wind prevention system includes electric pull rod 100, anchor base 200 and electric control box 300.

[0027] Figure 2 is the cross-sectional structure schematic diagram of the electric pull rod in the embodiment of the utility model.

[0028] As Figure 1 and Figure 2 shown, the electric pull rod 100 is hung on the crane main machine, containing rod body 104, ear ring 101, nut 107, drive motor 103, speed reducer 105, composite screw rod 106, manual device 102, upper position sensor 109, lower position sensor 108 and junction box 110.

[0029] The rod body 104 is tubular, which is connected by steel pipes with certain thickness.

[0030] The ear ring 101 is fixedly arranged at the upper end of the rod body 104 and used for being connected with the main machine of the crane; in the embodiment, a journal bearing is arranged in the inner hole of the ear ring 101, so that the electric pull rod 100 can be inclined and rotated relative to the main machine of the crane.

[0031] The nut 107 is coaxially fixedly arranged at the lower end of the rod body 104.

[0032] The driving motor 103, the speed reducer 105 and the composite screw rod 106 are sequentially coaxially connected and arranged in the rod body 104 from top to bottom.

[0033] The composite screw rod 106 is a hollow tubular shaft, is sleeved on the output shaft of the speed reducer 105 in a circumferential fixed and axial slidable manner, is movably arranged in the nut 107, and has an outer thread on the outer surface, which is matched with an inner thread of the nut 107.

[0034] In the embodiment, the circumferential fixed and axial slidable connection between the composite screw rod 107 and the output shaft of the speed reducer 105 is realized through the following structure: a guide key is arranged on the outer surface of the output shaft of the speed reducer 105, and the guide key is preferably a spline; a key groove is arranged in the inner hole of the composite screw rod 106 and extends along the axial direction of the composite screw rod 106 and is matched with the guide key.

[0035] In the embodiment, when the composite screw rod 106 is retracted to the innermost position of the rod body 104, the outer thread of the composite screw rod 106 is not separated from the inner thread of the nut 107; when the composite screw rod 106 is extended to the longest position of the rod body 104, the key groove in the inner hole of the composite screw rod 106 is not separated from the guide key on the output shaft of the speed reducer 105.

[0036] The upper position sensor 109 and the lower position sensor 108 are used for detecting the position of the composite screw rod 106, are fixedly arranged on the rod body 104 respectively, and correspond to the positions where the composite screw rod 106 is retracted to the innermost position of the rod body 104 and the composite screw rod 106 is extended to the longest position of the rod body 104 respectively.

[0037] The manual device 102 is arranged on the rod body 104 at a position corresponding to the upper end of the driving motor 103 and is connected with the rotating shaft of the driving motor 103, and is used for rotating the rotating shaft of the driving motor 103 manually when power is cut off or the driving motor cannot be started, so that the electric pull rod 100 and the anchor base 200 are fixed and the anchorage is released.

[0038] The junction box 110 is fixedly arranged on the rod body 104.

[0039] Figure 3 is a sectional structure schematic view of the anchor base in the embodiment of the utility model.

[0040] As Figure 1 and Figure 3As shown, the anchor base 200 is used for installation on the wharf foundation, containing the base 202 and the nut plate 201.

[0041] The base 202 is used for installation on the wharf foundation, composed of the upper plate, the pipe base body and the bottom plate. In the embodiment, the bottom plate is provided with the mounting screw hole for connecting the embedded anchor bolt of the wharf foundation.

[0042] The nut plate 201 is fixedly arranged on the upper plate of the base 203, and the center position has the internal thread matched with the external thread of the composite screw rod 106.

[0043] As shown, Figures 1 to 3 The electric control box 300 is hung on the crane main machine, containing the PLC controller and the operation panel. The PLC controller is electrically connected with the upper position sensor 109, the lower position sensor 108 and the driving motor 103, used for receiving the operation instruction input from the operation panel and the position signal sent by the upper position sensor 109 and the lower position sensor 108, controlling the driving motor 103 to act, so as to realize the automatic fixing of the electric pull rod 100 and the anchor base 200 and the release of the anchor.

[0044] As shown, Figures 1 to 3 The process of realizing the fixing and the anchor release of the crane electric windproof fixing system in the embodiment is as follows:

[0045] When fixing, the electric control box 300 is powered on, the driving motor 103 is reduced in speed and the torque is increased through the speed reducer 105, the output shaft of the speed reducer 105 drives the composite screw rod 106 to rotate, since the nut 107 of the electric pull rod 100 is fixed with the rod body 104, the composite screw rod 106 is extended from the rod body 104 after rotating, the lower end of the composite screw rod 106 is screwed with the nut plate 201 of the anchor base 200 to realize the screwing. When reaching the position required by the design, the lower position sensor 108 sends the stop instruction to the PLC controller of the electric control box 300, the driving motor 103 stops acting, so as to realize the fixing of the electric pull rod 100 and the anchor base 200.

[0046] When releasing the anchor, the driving motor 103 is reversely powered on, the composite screw rod 106 is reversely rotated, the nut plate 201 is screwed out, the composite screw rod 106 is retracted into the rod body 104 of the electric pull rod 100, when reaching the position required by the design, the upper position sensor 109 sends the stop instruction to the PLC controller of the electric control box 300, the driving motor 103 stops acting, so as to realize the release of the fixing of the electric pull rod 100 and the anchor base 200.

[0047] The above embodiment is the preferred case of the utility model, and is not used to limit the protection scope of the utility model.

Claims

1. A motorized windlass system for a crane, characterized in that, The crane electric wind-preventing system comprises: an electric pull rod for hanging on a crane main machine; an anchor base for being installed on a wharf foundation; and an electric control box containing a controller electrically connected with the electric pull rod, wherein the electric pull rod contains a rod body in a tubular shape, an ear ring, a nut, a driving motor, a speed reducer and a composite screw rod in a hollow tubular shape, the ear ring and the nut are respectively fixedly arranged at the upper end and the lower end of the rod body, the driving motor, the speed reducer and the composite screw rod are sequentially installed in the rod body from top to bottom, the composite screw rod is circumferentially fixed and axially slidable on the output shaft of the speed reducer, and the outer surface has an external thread matched with the internal thread of the nut, the anchor base contains a base and a nut plate fixedly arranged on the base, the central position of the nut plate has an internal thread matched with the external thread of the composite screw rod.

2. The crane electric wind-preventing system according to claim 1, wherein: circumferential fixation and axial slidable between the composite screw rod and the output shaft of the speed reducer are realized through the following structure: wherein an external surface of the output shaft is provided with a guide key, an inner hole of the composite screw rod is provided with a key groove extending along the axial direction of the composite screw rod and matched with the guide key.

3. The crane electric wind-preventing system according to claim 2, wherein: the guide key is a spline. wherein 4. The crane electric wind-preventing system according to claim 1, wherein: the rod body is provided with an upper position sensor and a lower position sensor for detecting the position of the composite screw rod and respectively electrically connected with the controller. wherein 5. The crane electric wind-preventing system according to claim 1, wherein: the rod body and the nut are coaxially arranged. wherein 6. The crane electric wind-preventing system according to claim 1, wherein: the base is composed of an upper plate, a tubular base body and a bottom plate. wherein, 7. The crane electric wind-preventing system according to claim 6, wherein: the bottom plate is provided with mounting screw holes for connecting with foundation bolts pre-buried in the wharf foundation. wherein, 8. The crane electric wind-preventing system according to claim 1, wherein: a joint bearing is installed in the inner hole of the ear ring. wherein, Further comprising:

9. The electrically powered windlass system of claim 1, wherein, a manual device arranged at a position of the rod body corresponding to the upper end of the driving motor, wherein the manual device is connected with the rotating shaft of the driving motor. ​

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