Pitching mechanism of ship unloader
By combining the pull rope absolute value encoder and inclination sensor in the unloader pitch mechanism, the problem of insufficient pitch angle detection accuracy in the prior art is solved, and higher accuracy and reliability are achieved.
Patent Information
- Application Number
- CN202421161374.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-24
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-24
AI Technical Summary
In the pitch mechanism of the existing ship unloader, only one rope encoder is used to detect the protrusion length of the hydraulic cylinder and calculate the pitch angle of the balance beam. There is a risk of accuracy and can easily lead to operational accidents.
In the pitch mechanism of the unloader, a rope absolute value encoder and an inclination sensor are used to detect the outflow of the hydraulic cylinder through the rope absolute value encoder, and the pitch angle of the balance beam is detected by the inclination sensor to detect the pitch angle of the balance beam. Verify the numerical value to ensure the accuracy of the pitch angle.
Through dual detection, the accuracy of the pitch angle of the balance beam is improved, the risk of operation accidents is reduced, and the reliability of operation is enhanced.
Smart Images
Figure CN222249253U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of ship unloaders, and more specifically relates to a pitching mechanism of a ship unloader. Background Art
[0002] CN202210045048.9 discloses a continuous ship unloader boom pitch hydraulic system, which adopts a boom pitch mechanism with double oil cylinder support, in which the boom and the balance beam are parallel to each other, the top structure and the slewing frame are parallel to each other, and the boom and the balance beam and the top structure and the slewing frame form a parallelogram structure; the rodless cavity end of the pitch cylinder is arranged at the middle hinge point of the slewing frame, and the rod cavity end is arranged at the rear hinge point of the balance beam; a cylinder valve group is also arranged on the cylinder; the cylinder valve group is connected to a pitch hydraulic station for providing a power source, and the pitch hydraulic station is arranged on a slewing platform; when the pitch cylinder telescopes, the balance beam rotates around the middle fixed hinge point to realize the vertical up and down movement of the material taking and lifting system;
[0003] In the above-mentioned pitching mechanism of the ship unloader, a hydraulic cylinder is used to drive the balance beam to rotate and adjust the pitching angle of the balance beam. In the prior art, a pull rope encoder is set on the hydraulic cylinder, and the pull rope encoder is used to detect the extension length of the hydraulic cylinder, and then the pitching angle of the balance beam is calculated.
[0004] However, in this structure, only one draw-wire encoder is relied upon to obtain the value, which is risky. Once the draw-wire encoder has a problem, the pitch angle of the pitch mechanism will be wrong, and it will be difficult to detect, which may easily lead to operational accidents. Utility Model Content
[0005] The main purpose of the utility model is to provide a pitch mechanism of a ship unloader, which aims to rely on a pull-rope absolute encoder to calculate the pitch angle of the balance beam, and at the same time use an inclination sensor to detect the pitch angle of the balance beam, and verify the value of the pull-rope absolute encoder to ensure that the pitch angle of the balance beam is sufficiently accurate.
[0006] According to a first aspect of the utility model, a pitch mechanism of a ship unloader is provided, comprising a slewing frame, a balance beam and a hydraulic cylinder, wherein the balance beam is hinged on the slewing frame, a cylinder body of the hydraulic cylinder is hinged to the slewing frame, a piston rod of the hydraulic cylinder is hinged to the balance beam, a pull rope absolute value encoder is provided on the cylinder body of the hydraulic cylinder, a pull rope of the pull rope absolute value encoder is connected to the piston rod of the hydraulic cylinder, so that the pull rope absolute value encoder detects the extension amount of the hydraulic cylinder;
[0007] The balance beam is provided with an inclination sensor for detecting the pitch angle of the balance beam.
[0008] In the above-mentioned pitch mechanism of the ship unloader, the inclination sensor is fixed on the balance beam through a mounting bracket.
[0009] In the above-mentioned pitch mechanism of the ship unloader, the mounting bracket comprises a fixing plate, a connecting plate and a fixing frame fixed on the balance beam, the fixing plate is located on a side of the fixing frame away from the balance beam, the connecting plate connects the fixing plate and the fixing frame, the inclination sensor is fixed on the fixing plate, one end of the fixing plate is fixed to the connecting plate, and an opening is formed between the other end of the fixing plate and the fixing frame;
[0010] It also includes an adjustment block, which is inserted into the opening and fixedly connected to the fixing frame. The adjustment block is provided with an inclined surface, which contacts an end of the fixing plate away from the connecting plate.
[0011] In the above-mentioned pitch mechanism of the ship unloader, the fixed frame includes a first plate body, a second plate body and a third plate body, the first plate body is two and is arranged on the balance beam at intervals, the second plate body corresponds to the first plate body one by one, a gap is left between the third plate body and the balance beam, and the second plate body connects the first plate body and the third plate body.
[0012] In the above-mentioned pitch mechanism of the ship unloader, the adjusting block is provided with a threaded hole, the fixing frame is provided with a first long waist hole, and a screw is passed through the first long waist hole and connected to the threaded hole to fix the adjusting block on the fixing frame.
[0013] In the above-mentioned pitch mechanism of the ship unloader, the fixing plate is provided with a first through hole, the fixing frame is provided with a second through hole corresponding to the first through hole, and the adjusting block is provided with a second long waist hole. Bolts are used to pass through the first through hole, the second long waist hole and the second through hole in sequence to press the fixing plate and the adjusting block onto the fixing frame.
[0014] In the above-mentioned pitching mechanism of the ship unloader, the first plate body is fixed to the balance beam by welding.
[0015] In the above-mentioned pitch mechanism of the ship unloader, the adjusting block is fixed to the fixing plate by welding, and the adjusting block is fixed to the fixing frame by welding.
[0016] One of the above technical solutions of the utility model has at least one of the following advantages or beneficial effects:
[0017] In the utility model, a pull-rope absolute value encoder is arranged on the hydraulic cylinder. When the piston rod of the hydraulic cylinder is extended, the pull-rope of the pull-rope absolute value encoder will be pulled to move, so that the pull-rope absolute value encoder can obtain the extension amount of the hydraulic cylinder, and then obtain the pitch angle of the balance beam by calculation. At the same time, an inclination sensor is arranged on the balance beam to detect the pitch angle of the balance beam, so as to verify the value of the pull-rope absolute value encoder to ensure that the pitch angle of the balance beam is accurate enough to avoid operation accidents. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments;
[0019] Figure 1 It is a structural schematic diagram of the first embodiment of the utility model;
[0020] Figure 2 The first embodiment of the utility model Figure 1 A partial enlarged view of A;
[0021] Figure 3 The first embodiment of the utility model Figure 1 A partial enlarged view of B;
[0022] Figure 4 This is a schematic diagram of the structure of the mounting bracket of the first embodiment of the utility model;
[0023] Figure 5 It is another structural schematic diagram of the mounting bracket of the first embodiment of the utility model.
[0024] Among them, the reference numerals of the figures are:
[0025] 1. Slewing frame; 2. Balance beam; 3. Hydraulic cylinder; 4. Pull rope absolute encoder; 5. Inclination sensor; 6. Mounting bracket; 61. Fixing plate; 62. Connecting plate; 63. Fixing frame; 631. First plate body; 632. Second plate body; 633. Third plate body; 634. First long waist hole; 64. Adjusting block; 641. Second long waist hole; 65. Screw; 66. Bolt. DETAILED DESCRIPTION
[0026] 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.
[0027] The following disclosure provides many different embodiments or examples for implementing different solutions of the present invention.
[0028] Reference Figures 1 to 5 As shown, in one embodiment of the utility model, a pitch mechanism of a ship unloader includes a slewing frame 1, a balance beam 2 and a hydraulic cylinder 3, wherein the balance beam 2 is hinged on the slewing frame 1, the cylinder body of the hydraulic cylinder 3 is hinged to the slewing frame 1, the piston rod of the hydraulic cylinder 3 is hinged to the balance beam 2, a pull rope absolute value encoder 4 is provided on the cylinder body of the hydraulic cylinder 3, the pull rope of the pull rope absolute value encoder 4 is connected to the piston rod of the hydraulic cylinder 3, so that the pull rope absolute value encoder 4 detects the extension amount of the hydraulic cylinder 3, and the pitch angle of the balance beam 2 can be calculated according to the relative relationship between the hydraulic cylinder 3, the slewing frame 1 and the balance beam 2;
[0029] The balance beam 2 is provided with an inclination sensor 5 for detecting the pitch angle of the balance beam 2, so as to verify the value of the pull rope absolute encoder 4, to ensure that the pitch angle of the balance beam 2 is accurate enough to avoid operation accidents.
[0030] When installing, the inclination sensor 5 should be kept horizontal as much as possible, but there is no flatness requirement on the surface of the balance beam 2. Therefore, if the inclination sensor 5 is directly fixed to the surface of the balance beam 2, the obtained pitch angle is not accurate. Therefore, a mounting bracket 6 is provided to mount the inclination sensor 5.
[0031] Specifically, the mounting bracket 6 includes a fixing plate 61, a connecting plate 62, and a fixing frame 63 fixed on the balance beam 2, the fixing plate 61 is located on a side of the fixing frame 63 away from the balance beam 2, the connecting plate 62 connects the fixing plate 61 and the fixing frame 63, the inclination sensor 5 is fixed on the fixing plate 61, one end of the fixing plate 61 is fixed to the connecting plate 62, and an opening is formed between the other end of the fixing plate 61 and the fixing frame 63;
[0032] The adjusting block 64 is inserted into the opening and fixedly connected to the fixing frame 63. The adjusting block 64 is provided with an inclined surface, which contacts an end of the fixing plate 61 away from the connecting plate 62.
[0033] When the adjusting block 64 is inserted into the opening, the inclined surface can be used to slightly adjust the inclination angle of the fixing plate 61 so that the inclination sensor 5 can be adjusted to a horizontal posture. After the adjustment is completed, the adjusting block 64 is fixed.
[0034] In this embodiment, the fixing frame 63 includes a first plate 631, a second plate 632 and a third plate 633. The first plate 631 is two and is arranged on the balance beam 2 at intervals. The second plate 632 corresponds to the first plate 631 one by one. A gap is left between the third plate 633 and the balance beam 2 to facilitate the use of screws 65 to fix the adjustment block 64. The second plate 632 connects the first plate 631 and the third plate 633.
[0035] The adjusting block 64 is provided with a threaded hole, and the third plate body 633 is provided with a first long waist hole 634, and a screw 65 is used to pass through the first long waist hole 634 and connect with the threaded hole;
[0036] After installing the inclination sensor 5, first loosen the screw 65. At this time, the adjustment block 64 can be moved. By adjusting the degree of insertion of the adjustment block 64 into the opening, the inclination angle of the fixed plate 61 can be changed. After adjustment, tighten the screw 65 to fix the adjustment block 64 on the third plate body 633.
[0037] Preferably, a first through hole is provided on the fixing plate 61, a second through hole corresponding to the first through hole is provided on the third plate body 633, and a second long waist hole 641 is provided on the adjusting block 64. Bolts 66 are used to pass through the first through hole, the second long waist hole 641 and the second through hole in sequence to press the fixing plate 61 and the adjusting block 64 onto the third plate body 633; therefore, the adjusting block 64 is fixed at two positions to ensure that the adjusting block 64 will not loosen.
[0038] In this embodiment, after the screws 65 and the bolts 66 are tightened, it is determined that the inclination sensor 5 is in a horizontal posture, and welding can be used to further fix it to ensure that the adjustment block 64 will not deviate and loosen during the operation of the balance beam 2, thereby ensuring the accuracy of the inclination sensor 5; specifically, the adjustment block 64 is welded and fixed to the fixing plate 61, and the adjustment block 64 is welded and fixed to the third plate body 633.
[0039] In this embodiment, the first plate 631 is fixed to the balance beam 2 by welding, so that the fixing frame 63 is fixed on the balance beam 2 .
[0040] 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 pitch mechanism of a ship unloader, comprising a slewing frame, a balance beam and a hydraulic cylinder, wherein the balance beam is hinged on the slewing frame, the cylinder body of the hydraulic cylinder is hinged to the slewing frame, and the piston rod of the hydraulic cylinder is hinged to the balance beam, characterized in that: A pull rope absolute value encoder is provided on the cylinder body of the hydraulic oil cylinder, and a pull rope of the pull rope absolute value encoder is connected to the piston rod of the hydraulic oil cylinder so that the pull rope absolute value encoder can detect the extension amount of the hydraulic oil cylinder; The balance beam is provided with an inclination sensor for detecting the pitch angle of the balance beam.
2. The pitching mechanism of the ship unloader according to claim 1, characterized in that: The inclination sensor is fixed on the balance beam through a mounting bracket.
3. The pitching mechanism of the ship unloader according to claim 2, characterized in that: The mounting bracket comprises a fixing plate, a connecting plate and a fixing frame fixed on the balance beam, the fixing plate is located on a side of the fixing frame away from the balance beam, the connecting plate connects the fixing plate and the fixing frame, the inclination sensor is fixed on the fixing plate, one end of the fixing plate is fixed to the connecting plate, and an opening is formed between the other end of the fixing plate and the fixing frame; It also includes an adjustment block, which is inserted into the opening and fixedly connected to the fixing frame. The adjustment block is provided with an inclined surface, which contacts an end of the fixing plate away from the connecting plate.
4. The pitching mechanism of the ship unloader according to claim 3, characterized in that: The fixing frame includes a first plate body, a second plate body and a third plate body. The first plate body is two and is arranged on the balance beam at an interval. The second plate body corresponds to the first plate body one by one. There is a gap between the third plate body and the balance beam. The second plate body connects the first plate body and the third plate body.
5. The pitching mechanism of the ship unloader according to claim 3, characterized in that: The adjusting block is provided with a threaded hole, and the fixing frame is provided with a first long waist hole. A screw is used to pass through the first long waist hole and connect with the threaded hole to fix the adjusting block on the fixing frame.
6. The pitching mechanism of the ship unloader according to claim 3, characterized in that: The fixing plate is provided with a first through hole, the fixing frame is provided with a second through hole corresponding to the first through hole, the adjusting block is provided with a second long waist hole, and bolts are used to pass through the first through hole, the second long waist hole and the second through hole in sequence to press the fixing plate and the adjusting block onto the fixing frame.
7. The pitching mechanism of the ship unloader according to claim 4, characterized in that: The first plate body is fixed to the balance beam by welding.
8. The pitching mechanism of the ship unloader according to claim 5, characterized in that: The adjusting block is fixed to the fixing plate by welding, and the adjusting block is fixed to the fixing frame by welding.