Bucket wheel tripper car pitching and pressure supplementing limiting device

Abstract

The utility model provides a tripper car pitching and pressure supplementing limiting device of a bucket wheel machine. The tripper car pitching and pressure supplementing limiting device comprises a tripper car pitching oil cylinder, a fixing frame, a traction rod, a sliding block, a collision head, an upper limiting switch, a lower limiting switch, a tripper car, a front arm frame, a supporting frame and a bucket mechanism. The tripper car pitching oil cylinder comprises an oil cylinder barrel and an oil cylinder lever; the upper limit switch and the lower limit switch are arranged between the two ends of the oil cylinder barrel; one end of the draw bar is connected with the hinged part of the oil cylinder lever and the front arm frame, and the other end is slidably connected with the fixed frame; a collision head is arranged at the joint of the traction rod and the fixing frame, arranged on the traction rod and located between the upper limiting switch and the lower limiting switch. The tripper car pitching and pressure supplementing limiting device meets different requirements of the tripper car of the bucket wheel machine in two working states of a material taking station and a material stacking station, is simple in structure, economical and practical, saves cost, stabilizes the lifting conversion function of the tripper car, and reduces repair and maintenance work of tripper car limiting.

Description

Technical Field

[0001] The utility model relates to a limiting and compensating pressure technology for a bucket wheel stacker and reclaimer, in particular to a bucket wheel tail car pitching and compensating pressure limiting device. Background Art

[0002] The tail car device is the core operating component of the bucket wheel stacker and reclaimer. The tail car device has various forms to realize the functions of the bucket wheel stacker and reclaimer in material stacking, return, passing and other processes. In the past, the semi-lying tail car of the bucket wheel machine, the tail car pitch limit is generally set at the tail car pitch hinge shaft. Therefore, when the tail car pitches, the tail car movement can never reach the ideal position, and when the tail car pitch cylinder produces pressure relief, the tail car cylinder lever is passively compressed, affecting the operation. Utility Model Content

[0003] In view of the above problems, a bucket wheel machine tail car pitch and pressure compensation limit device is proposed.

[0004] In order to achieve some or all of the above-mentioned purposes or other purposes, the present application provides the following technical solutions: a bucket wheel machine tail car pitch and pressure compensation limit device, including a tail car pitch cylinder, a fixed frame, a traction rod, a slider, a bumper, an upper limit switch, a lower limit switch, a tail car, a front arm frame, a support frame, and a bucket material mechanism; one end of the front arm frame is fixedly connected to the bucket material mechanism, and the other end is hingedly connected to the support frame; the tail car pitch cylinder includes a cylinder barrel and a cylinder lever; the two ends of the fixed frame are hooped at the two ends of the cylinder barrel, and an upper limit is set between the two ends of the fixed frame The upper limit switch and the lower limit switch are respectively arranged on the cylinder barrel and the lower limit switch; the upper limit switch sleeve is mounted on one end of the cylinder barrel close to the cylinder lever, and the lower limit switch sleeve is mounted on the other end of the cylinder barrel; one end of the cylinder lever of the tail car pitch cylinder is hingedly connected to the front arm frame, and one end of the cylinder barrel of the tail car pitch cylinder is hingedly connected to the tail car; one end of the traction rod is connected to the hinge of the cylinder lever and the front arm frame, and the other end is slidably connected to the fixed frame; a butt is arranged at the connection between the traction rod and the fixed frame, and the butt is arranged on the traction rod, and the butt is located between the upper limit switch and the lower limit switch.

[0005] Furthermore, the traction rod is connected to a fixing frame via a sliding block, and a fixing track matching the sliding block is provided on the fixing frame.

[0006] Furthermore, the traction rod is composed of a traction shaft and two universal joints, a universal joint is arranged at each end of the traction shaft, the slider is connected to the traction shaft through the universal joint, and the traction shaft is connected to the hinge of the cylinder lever and the front arm frame through the universal joint.

[0007] The beneficial effects of the utility model are as follows: The utility model can control the pitching action of the tail car more accurately, so that the tail car stops after pitching to the designed position; it meets the different needs of the bucket wheel machine tail car in the two working states of the material taking station and the material stacking station; the tail car pitching and pressure compensation limit device has a relatively simple structure, which is economical and practical, saves costs, stabilizes the lifting and changing function of the tail car, and reduces the maintenance work of the tail car limit. This tail car pitching and pressure compensation limit device adopts a reasonable mechanical transmission type, works reliably, and is easy to repair and maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the utility model;

[0009] Figure 2 It is a partially enlarged schematic diagram;

[0010] Figure 3 It is the AA section view;

[0011] Figure 4 This is a cross-sectional view of the BB (fixing frame is not shown);

[0012] In the figure: 1. tail car pitch cylinder, 1-1. cylinder barrel, 1-2. cylinder lever, 2. fixed frame, 3. traction rod, 3-1. traction shaft, 3-2. universal joint, 4. slide block, 5. bumper, 6. upper limit switch, 7. lower limit switch, 8. tail car, 9. front arm frame, 10. support frame, 11. bucket mechanism. DETAILED DESCRIPTION

[0013] In order to make the structure and function of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0014] See attached Figure 1-4A pitching and pressure-compensating limit device for the tail car 8 of a bucket wheel machine comprises a pitching cylinder 1 for the tail car 8, a fixing frame 2, a traction rod 3, a sliding block 4, a bumper 5, an upper limit switch 6, a lower limit switch 7, the tail car 8, a front arm frame 9, a support frame 10, and a bucket mechanism 11; one end of the front arm frame 9 is fixedly connected to the bucket mechanism 11, and the other end is hingedly connected to the support frame 10; the pitching cylinder 1 for the tail car 8 comprises a cylinder barrel 1-1 and a cylinder lever 1-2; the two ends of the fixing frame 2 are hooped at the two ends of the cylinder barrel 1-1, and an upper limit switch 6 and a lower limit switch 7 are arranged between the two ends of the fixing frame 2; the upper limit switch The switch 6 is hooped on one end of the cylinder barrel 1-1 close to the cylinder lever 1-2, and the lower limit switch 7 is hooped on the other end of the cylinder barrel 1-1; one end of the cylinder lever 1-2 of the pitch cylinder 1 of the tail car 8 is hingedly connected to the front arm frame 9, and one end of the cylinder barrel 1-1 of the pitch cylinder 1 of the tail car 8 is hingedly connected to the tail car 8; one end of the traction rod 3 is connected to the hinge of the cylinder lever 1-2 and the front arm frame 9, and the other end is slidably connected to the fixed frame 2; a bumper 5 is arranged at the connection between the traction rod 3 and the fixed frame 2, and the bumper 5 is arranged on the traction rod 3, and the bumper 5 is located between the upper limit switch 6 and the lower limit switch 7.

[0015] Furthermore, the fixing frame 2 includes two tubes, and the traction rod 3 includes one tube.

[0016] Furthermore, the traction rod 3 is connected to the fixing frame 2 via a sliding block 4 , and a fixing track matching the sliding block 4 is provided on the fixing frame 2 .

[0017] Furthermore, the traction rod 3 is composed of a traction shaft 3-1 and two universal joints 3-2, a universal joint 3-2 is set at each end of the traction shaft 3-1, the slider 4 is connected to the traction shaft 3-1 through the universal joint 3-2, and the traction shaft 3-1 is connected to the hinge of the cylinder lever 1-2 and the front arm frame 9 through the universal joint 3-2.

[0018] Furthermore, the action signals of the upper limit switch 6 and the lower limit switch 7 are transmitted to the PLC program, and the PLC program performs the action of the telescopic cylinder according to the set logic.

[0019] Furthermore, the bumper 5 on the slider 4 moves about 20 mm on the upper limit switch 6, and the signal of the upper limit switch 6 is lost, triggering the pressure replenishment action, and the PLC program extends the cylinder to achieve pressure replenishment.

[0020] Beneficial effect: The extension and retraction of the oil cylinder of the tail car 8 can drive the traction rod 3 and the slider 4 to meet the head 5, and accurately move on the set track, accurately control the lifting and lowering action of the tail car 8, and the oil cylinder stops extending and retracting at the designed position, so the operation is reliable and the safety of the bucket wheel excavator is improved.

[0021] The above disclosure is only the preferred embodiment of the present application, which certainly cannot be used to limit the scope of rights of the present application. Therefore, equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A bucket wheel machine tail car pitching and pressure compensation limit device, characterized in that: It includes a tail car pitch cylinder, a fixed frame, a traction rod, a slider, a bumper, an upper limit switch, a lower limit switch, a tail car, a front arm frame, a support frame, and a bucket mechanism; one end of the front arm frame is fixedly connected to the bucket mechanism, and the other end is hingedly connected to the support frame; the tail car pitch cylinder includes a cylinder barrel and a cylinder lever; the two end hoops of the fixed frame are at the two ends of the cylinder barrel, and an upper limit switch and a lower limit switch are arranged between the two ends of the fixed frame; the upper limit switch hoop is on the cylinder barrel near one end of the cylinder lever, and the lower limit switch hoop is on the other end of the cylinder barrel; one end of the cylinder lever of the tail car pitch cylinder is hingedly connected to the front arm frame, and one end of the cylinder barrel of the tail car pitch cylinder is hingedly connected to the tail car; one end of the traction rod is connected to the hinge of the cylinder lever and the front arm frame, and the other end is slidably connected to the fixed frame; a bumper is arranged at the connection between the traction rod and the fixed frame, and the bumper is arranged on the traction rod, and the bumper is located between the upper limit switch and the lower limit switch.

2. A bucket wheel machine tail car pitching and pressure compensation limit device according to claim 1, characterized in that: The traction rod is connected to the fixing frame through a sliding block, and the fixing frame is provided with a fixing track matching the sliding block.

3. The bucket wheel machine tail car pitching and pressure compensation limit device according to claim 2, characterized in that: The traction rod is composed of a traction shaft and two universal joints. A universal joint is arranged at each end of the traction shaft. The slider is connected to the traction shaft through the universal joint. The traction shaft is connected to the hinge of the oil cylinder lever and the front arm frame through the universal joint.

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