Parallel four-bar linkage detection mechanism of car dumper pressing device

Abstract

The utility model discloses a parallel four-bar linkage detection mechanism of a car dumper pressing device. Comprising a support, a long pull rod, a short pull rod, a detection pull rod, an adjusting bolt, a spring and a detection device. Wherein the detection pull rod, the long pull rod, the short pull rod and the support are hinged together to form a parallel four-connecting-rod mechanism, and the support is fixed on a rib plate in the head pressing machine. And the bolt and the adjusting block welded on the short pull rod form a position adjusting bolt. According to the detection mechanism, whether the vehicle pressing device completely presses the vehicle or not can be detected only by using a mechanical structure; no matter what load the detection pull rod bears, the detection pull rod is always vertical, and no angle deviation is generated to cause collision with the vehicle head pressing structure.

Description

Technical Field

[0001] The utility model belongs to the bulk material loading and unloading equipment of railway vehicles, and particularly relates to a parallel four-link detection mechanism for a car clamping device of a car dumper. Background Technique

[0002] The parallel four-link detection mechanism for the car clamping device of a car dumper is a detection device for detecting whether the car clamping device completely clamps the car. At present, the car clamping device of a car dumper mainly detects through the signals of electrical switches and the detection mechanism of a single-rod car clamping device. The signal detection of electrical switches relies too much on electrical means. When there are working faults in the electrical system, the entire detection cannot continue to work, and the cost of the electrical system is relatively high. Therefore, the mechanical car clamping device detection mechanism can perfectly solve the above problems. The single-rod car clamping device detection mechanism realizes the detection of car clamping by using a mechanical structure. However, when the single rod is working, the detection rod swings and is easy to collide with the car clamping head; moreover, the single-rod structure is thin and easy to deform.

[0003] In summary, it is very necessary to research and develop a new detection mechanism for the car clamping device of a car dumper. Content of the Utility Model

[0004] The purpose of the utility model is to improve the disadvantages and deficiencies existing in the above technology, and provide a detection mechanism for the car clamping device of a car dumper with a parallel four-link. This detection mechanism not only has a scientific and reasonable design structure, can improve the operation efficiency, but also has the advantages of compact structure, low cost, safety and reliability, convenient use and simple maintenance.

[0005] The purpose of the utility model is realized by adopting the following technical scheme: A parallel four-link detection mechanism for a car clamping device of a car dumper, including a long rod (2), a short rod (3), a detection rod (1), a support (4) and a detection device (6). The lower hinge point of the detection rod (1) is hinged to the front hinge point of the short rod (3), the upper hinge point of the detection rod (1) is hinged to the front hinge point of the long rod (2), the lower point of the support (4) is hinged to the rear hinge point of the short rod (3), and the upper point of the support (4) is hinged to the rear hinge point of the long rod (3). The lower part of the detection rod (1) penetrates into the bottom plate of the car clamping head and always expands and contracts perpendicular to the bottom plate of the car clamping head. One end of the long rod (2) is connected to the bottom plate of the car clamping head by a spring (7); the support (4) is bolted to the car clamping head; the detection device (6) is installed on the support (4) and the position should be such that the detection device probe can detect the position change caused by the swing of the front end of the long rod (2).

[0006] Furthermore, it includes an adjusting bolt (5). The adjusting bolt (5) is installed on the short rod (3), and the initial height of the detection rod (1) is adjusted by the adjusting bolt (5).

[0007] During operation, when the detection pull rod is stressed and swings, the swing of the long pull rod can be detected by the signal detection device; after the stress is over, the parallel four-bar linkage is pulled back to its initial position by the spring contraction.

[0008] Compared with the prior art, the utility model has the following advantages:

[0009] 1. The vehicle pressing detection is completed by relying on the mechanical structure, which has higher reliability;

[0010] 2. During the working process, the detection pull rod is always perpendicular to the bottom plate of the vehicle pressing head, and there will be no collision, which is more stable and safe; Description of the Drawings

[0011] Figure 1 is the front view of the natural state of the mechanism of the utility model;

[0012] Figure 2 is the lifting view of the mechanism of the utility model;

[0013] Figure 3 is the top view of the mechanism of the utility model;

[0014] In the figure: 1. Detection pull rod; 2. Long pull rod; 3. Short pull rod; 4. Support; 5. Adjusting bolt; 6. Signal detection device; 7. Spring. Detailed Implementation Manner

[0015] As Figure 1 、 2 are specific embodiments of the utility model. A parallel four-bar linkage detection mechanism for a car dumper vehicle pressing device includes a long pull rod 2, a short pull rod 3, a detection pull rod 1, a support 4, an adjusting bolt 5 and a detection device 6. The lower hinge point of the detection pull rod 1 is hinged to the front hinge point of the short pull rod 3, the upper hinge point of the detection pull rod 1 is hinged to the front hinge point of the long pull rod 2, the lower hinge point of the support 4 is hinged to the rear hinge point of the short pull rod 3, and the upper hinge point of the support 4 is hinged to the rear hinge point of the long pull rod 2 to form a parallel four-bar linkage mechanism; the lower part of the detection pull rod 1 passes through the bottom plate of the vehicle pressing head and always expands and contracts perpendicular to the bottom plate of the vehicle pressing head. One end of the long pull rod 2 is connected to a spring 7 between the bottom plate of the vehicle pressing head. The support 4 is bolted to the inner rib plate of the vehicle pressing head. The length of the detection pull rod 1 extending out of the bottom plate of the vehicle pressing head is adjusted by the adjusting bolt 5, which is the initial height of the detection pull rod 1; the detection device 6 is installed on the support 4 and the position is such that the detection device probe can detect the position change caused by the swing of the front end of the long pull rod 2.

[0016] During operation, the detection pull rod 1 is stressed vertically upward, driving the long pull rod 2 to swing. After being detected by the signal detection device 6, a signal is transmitted. At the same time, the spring 7 is stretched to complete the detection of vehicle pressing; after the stress on the detection pull rod 1 disappears, the spring 7 needs to return to its initial length, contract and drive the long pull rod 2 to reset.

[0017] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. All those skilled in the art in the technical field disclosed by the present utility model, according to the technical solution of the present utility model and the concept of the present utility model, making equivalent substitutions or changes, shall be covered within the protection scope of the present utility model.

Claims

1. A parallelogram detection mechanism for a car clamping device of a dumper, characterized in that, It includes a long pull rod (2), a short pull rod (3), a detection pull rod (1), a support (4) and a detection device (6). The lower hinge point of the detection pull rod (1) is hinged to the front hinge point of the short pull rod (3), the upper hinge point of the detection pull rod (1) is hinged to the front hinge point of the long pull rod (2), the lower point of the support (4) is hinged to the rear hinge point of the short pull rod (3), and the upper point of the support (4) is hinged to the rear hinge point of the long pull rod (2). The lower part of the detection pull rod (1) penetrates into the bottom plate of the press head and always expands and contracts perpendicular to the bottom plate of the press head. A spring (7) is connected between one end of the long pull rod (2) and the bottom plate of the press head; the support (4) is bolted to the press head; the detection device (6) is installed on the support (4) and the position is such that the probe of the detection device can detect the position change caused by the swing of the front end of the long pull rod (2).

2. The parallelogram detection mechanism of the car clamping device of the dumper according to claim 1, characterized in that, An adjusting bolt (5) is installed on the short pull rod (3), and the initial height of the detection pull rod (1) is adjusted by the adjusting bolt (5).

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