Cabin material level height detection mechanism

Abstract

The utility model discloses a cabin material level height detection mechanism, which aims to enable a radar material level gauge to be kept in a posture of emitting pulses downwards by utilizing the dead weight of a protective cover and ensure the detection accuracy, and adopts the technical scheme that the cabin material level height detection mechanism is suitable for an arm support of a continuous ship unloader and comprises a fixed rod fixed on the arm support, the length direction of the fixing rod is parallel to the length direction of the arm support; the cabin unloading device comprises a fixed rod and a cantilever crane, and further comprises a protective cover and a radar level gauge, the protective cover is rotationally connected with the fixed rod, the rotating axis of the protective cover is parallel to the rotating axis of the cantilever crane, and the radar level gauge is fixed in the protective cover so that the radar level gauge can emit pulses downwards.

Description

Technical Field

[0001] The utility model belongs to the technical field of ship cabin unloading, and more specifically relates to a ship cabin material level height detection mechanism. Background Art

[0002] When unloading the ship's hold, a ship unloader is generally used. In order to improve the unloading efficiency, existing ports will use continuous ship unloaders, which use chain bucket excavation mechanisms for continuous unloading.

[0003] When the continuous ship unloader is in use, it is necessary to know the bulk material level height in the cabin, so as to facilitate the control of the descent depth of the chain bucket excavation mechanism. In the prior art, a radar level meter is set on the boom to detect the cabin material level height. However, in practice, due to the change in the pitch angle of the boom, the measurement angle of the radar level meter will also change, resulting in a large error in the measured material level height, which affects the control of the descent distance of the chain bucket excavation mechanism. Utility Model Content

[0004] The main purpose of the utility model is to provide a ship cabin material level height detection mechanism, which aims to use the deadweight of the protective cover to keep the radar level meter in a posture of emitting pulses downward, thereby ensuring the detection accuracy.

[0005] According to a first aspect of the utility model, a ship hold material level height detection mechanism is provided, which is applicable to an arm of a continuous ship unloader, and comprises a fixing rod fixed on the arm, wherein the length direction of the fixing rod is parallel to the length direction of the arm;

[0006] It also includes a protective cover and a radar level meter. The protective cover is rotatably connected to the fixed rod. The rotation axis of the protective cover is parallel to the rotation axis of the arm. The radar level meter is fixed in the protective cover so that the radar level meter can emit pulses downward.

[0007] In the above-mentioned cabin material level height detection mechanism, the protective cover includes two guard plates symmetrically arranged along the length direction of the fixed rod, the two guard plates are connected by a storage plate, the storage plate is horizontally arranged and located below the fixed rod, a pin is passed through the fixed rod, the axial direction of the pin is parallel to the rotation axis of the arm, one end of the guard plate away from the storage plate is rotatably connected to the pin, the radar level meter is fixed on the storage plate and located between the two guard plates, and the storage plate is provided with a hollow corresponding to the emission port of the radar level meter.

[0008] In the above-mentioned ship cabin material level detection mechanism, the storage plate is flush with the end of the guard plate away from the pin shaft.

[0009] In the above-mentioned cabin material level height detection mechanism, the guard plate includes a first plate body, a second plate body and a third plate body connected in sequence from top to bottom, the two first plates are parallel, the two third plates are parallel, and the distance between the two first plates is smaller than the distance between the two third plates.

[0010] In the above-mentioned ship cabin material level detection mechanism, the fixing rod is cylindrical, and the outer diameter of the fixing rod is smaller than the distance between the two first plates.

[0011] In the above-mentioned ship cabin material level detection mechanism, the outer diameter of the fixing rod is 0.85 to 0.93 times the distance between the two first plates.

[0012] In the above-mentioned cabin material level height detection mechanism, the fixing rod has two blind holes symmetrically arranged along its length direction, the axial direction of the blind hole is parallel to the axial direction of the pin shaft, a ball is provided at the open end of the blind hole, a spring is provided between the ball and the bottom of the blind hole, and the ball is in contact with the first plate.

[0013] In the above-mentioned ship cabin material level detection mechanism, the ball bearing is made of self-lubricating plastic material.

[0014] In the above-mentioned ship cabin material level detection mechanism, the guard plate is made of stainless steel.

[0015] One of the above technical solutions of the utility model has at least one of the following advantages or beneficial effects:

[0016] In the utility model, a fixing rod is arranged on the boom, and the length direction of the fixing rod is parallel to the length direction of the boom, so when the boom swings, the fixing rod will swing synchronously, and a protective cover is arranged to fix the radar level meter in the protective cover, the protective cover is rotatably connected to the fixing rod, and the rotation axis of the protective cover is parallel to the rotation axis of the boom, so when the boom swings, the protective cover will not swing with the fixing rod, but maintain its posture by its own weight, so that the radar level meter can also maintain the posture of emitting pulses downward, and the height of the cabin material level can be measured more accurately, thereby ensuring the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0018] Figure 1 It is a structural schematic diagram of the first embodiment of the utility model;

[0019] Figure 2 The first embodiment of the utility model Figure 1 AA section view;

[0020] Figure 3The first embodiment of the utility model Figure 1 BB cross-section diagram.

[0021] Among them, the reference numerals of each figure are:

[0022] 1. Fixed rod; 11. Pin shaft; 12. Blind hole; 13. Ball bearing; 14. Spring; 2. Protective cover; 21. Guard plate; 211. First plate body; 212. Second plate body; 213. Third plate body; 22. Storage plate; 3. Radar level meter. DETAILED DESCRIPTION

[0023] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0024] The following disclosure provides many different embodiments or examples for implementing different solutions of the present invention.

[0025] Reference Figures 1 to 3 As shown, in one embodiment of the utility model, a ship hold material level height detection mechanism is applicable to the boom of a continuous ship unloader, comprising a fixing rod 1 fixed on the boom, and the length direction of the fixing rod 1 is parallel to the length direction of the boom, so when the boom swings, the fixing rod 1 will swing synchronously;

[0026] It also includes a protective cover 2 and a radar level meter 3. The protective cover 2 is rotatably connected to the fixed rod 1. The rotation axis of the protective cover 2 is parallel to the rotation axis of the boom. Therefore, when the boom swings, the protective cover 2 will not swing with the fixed rod 1, but rely on its own weight to maintain its posture. The radar level meter 3 is fixed in the protective cover 2. The radar level meter 3 can emit pulses downward. Since the protective cover 2 can maintain its posture, the radar level meter 3 can also maintain the posture of emitting pulses downward, which makes it more accurate to measure the cabin material level height and ensures the detection accuracy.

[0027] In this embodiment, the protective cover 2 includes two guard plates 21 symmetrically arranged along the length direction of the fixed rod 1, and the two guard plates 21 are connected by a storage plate 22. The storage plate 22 is horizontally arranged and located below the fixed rod 1. A pin shaft 11 is passed through the fixed rod 1, and the axial direction of the pin shaft 11 is parallel to the rotation axis of the arm. One end of the guard plate 21 away from the storage plate 22 is rotatably connected to the pin shaft 11. The radar level meter 3 is fixed on the storage plate 22 and is located between the two guard plates 21. The storage plate 22 is provided with a hollow corresponding to the emission port of the radar level meter 3.

[0028] The two guard plates 21 are connected by the storage plate 22 to form a whole. When the fixing rod 1 swings, the pin shaft 11 will move up and down with it. The guard plate 21 is hung on the pin shaft 11. Since the guard plate 21 and the pin shaft 11 are rotatably connected, relying on the deadweight of the guard plate 21, the guard plate 21 will only rise and fall with the pin shaft 11 and will not rotate, so that the entire protective cover 2 maintains its posture, the storage plate 22 will always remain horizontal, and the radar level meter 3 can maintain a downward transmitting posture; even if the guard plate 21 shakes, it will return to its original state in a relatively short time.

[0029] Specifically, a through hole is provided on the guard plate 21, and the pin 11 passes through the through hole on the guard plate 21 to allow the guard plate 21 to be rotatably connected with the pin 11, and the through hole must be larger than the outer diameter of the pin 11, and the pin 11 and the through hole are generally clearance-fitted.

[0030] In this embodiment, the storage plate 22 is flush with the end of the guard plate 21 away from the pin shaft 11. When the radar level meter 3 is installed, it is attached to the storage plate 22. Therefore, the guard plate 21 will not affect the pulse emission of the radar level meter 3.

[0031] In this embodiment, the guard plate 21 includes a first plate body 211, a second plate body 212 and a third plate body 213 connected in sequence from top to bottom. The two first plates 211 are parallel to each other, and the two third plates 213 are parallel to each other. The second plate body 212 connects the first plate body 211 and the third plate body 213. The spacing between the two first plates 211 is smaller than the spacing between the two third plates 213. When the fixing rod 1 swings, it moves between the two first plates 211. Since the spacing between the two third plates 213 is large, it is ensured that the fixing rod 1 will not interfere with the second plate body 212 and the third plate body 213.

[0032] In this embodiment, the fixing rod 1 is cylindrical, and the outer diameter of the fixing rod 1 is smaller than the distance between the two first plates 211, so as to ensure that the fixing rod 1 can rotate freely between the two first plates 211;

[0033] Preferably, the outer diameter of the fixing rod 1 is 0.85 to 0.93 times the distance between the two first plates 211. While ensuring that the fixing rod 1 can rotate freely, the gap between the fixing rod 1 and the first plate 211 will not be too large, thereby reducing the shaking of the protective cover 2 in the direction perpendicular to the swing plane of the fixing rod 1.

[0034] In this embodiment, the fixing rod 1 has two blind holes 12 symmetrically arranged along its length direction, and the axial direction of the blind hole 12 is parallel to the axial direction of the pin shaft 11, so the two blind holes 12 correspond to the two first plates 211 one by one, and a ball 13 is provided at the open end of the blind hole 12, and a spring 14 is provided between the ball 13 and the bottom of the blind hole 12, and the ball 13 is in contact with the first plate 211. Relying on the elastic force of the spring 14, the ball 13 can support the first plate 211, further reducing the shaking of the protective cover 2 in the direction perpendicular to the swinging plane of the fixing rod 1, and even if there is shaking, it can be quickly restored, and the ball 13 will not affect the mutual rotation between the fixing rod 1 and the first plate 211.

[0035] Preferably, the ball 13 is made of self-lubricating plastic material, and the ball 13 can maintain a smooth surface during long-term use.

[0036] In this embodiment, the guard plate 21 is made of stainless steel, so that the protective cover 2 is heavy enough to ensure that the protective cover 2 can maintain its posture by its own weight.

[0037] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A ship hold material level height detection mechanism, suitable for the boom of a continuous ship unloader, characterized in that: It includes a fixing rod fixed on the arm frame, wherein the length direction of the fixing rod is parallel to the length direction of the arm frame; It also includes a protective cover and a radar level meter. The protective cover is rotatably connected to the fixed rod. The rotation axis of the protective cover is parallel to the rotation axis of the arm. The radar level meter is fixed in the protective cover so that the radar level meter can emit pulses downward.

2. The ship hold material level detection mechanism according to claim 1, characterized in that: The protective cover includes two guard plates symmetrically arranged along the length direction of the fixed rod, the two guard plates are connected by a storage plate, the storage plate is horizontally arranged and located below the fixed rod, a pin is passed through the fixed rod, the axial direction of the pin is parallel to the rotation axis of the arm, one end of the guard plate away from the storage plate is rotatably connected to the pin, the radar level meter is fixed on the storage plate and located between the two guard plates, and the storage plate is provided with a hollow corresponding to the emission port of the radar level meter.

3. The ship hold material level detection mechanism according to claim 2, characterized in that: The storage plate is flush with an end of the guard plate away from the pin shaft.

4. The ship hold material level detection mechanism according to claim 2, characterized in that: The guard plate includes a first plate body, a second plate body and a third plate body connected in sequence from top to bottom, the two first plates are parallel to each other, the two third plates are parallel to each other, and the distance between the two first plates is smaller than the distance between the two third plates.

5. The ship hold material level detection mechanism according to claim 4, characterized in that: The fixing rod is cylindrical, and the outer diameter of the fixing rod is smaller than the distance between the two first plates.

6. The ship hold material level detection mechanism according to claim 5, characterized in that: The outer diameter of the fixing rod is 0.85 to 0.93 times the distance between the two first plates.

7. The ship hold material level detection mechanism according to claim 4, characterized in that: The fixing rod has two blind holes symmetrically arranged along its length direction, the axial direction of the blind hole is parallel to the axial direction of the pin shaft, a ball is provided at the open end of the blind hole, a spring is provided between the ball and the bottom of the blind hole, and the ball is in contact with the first plate body.

8. The ship hold material level detection mechanism according to claim 7, characterized in that: The ball is made of self-lubricating plastic material.

9. The ship hold material level detection mechanism according to claim 2, characterized in that: The guard plate is made of stainless steel.

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