Rail clamping device of bucket wheel machine

Abstract

The utility model belongs to the technical field of bucket wheel machines, and particularly relates to a bucket wheel machine rail clamping device which comprises a clamping cylinder, a first swing arm and a second swing arm, telescopic parts are formed at the two ends of the clamping cylinder, the telescopic part at one end of the clamping cylinder is hinged to the first swing arm, and the telescopic part at the other end of the clamping cylinder is hinged to the second swing arm. Coaxial shaft holes are formed in the lower portions of the first swing arm and the second swing arm, the first swing arm and the second swing arm are arranged on the main shaft in a sleeving mode through the shaft holes and fastened through a stop frame, the first swing arm and the second swing arm are symmetrically arranged on the two sides of the track, and the first swing arm is connected with the stop frame through a first centering spring; the second swing arm is connected with the stop frame through a second centering spring. The bucket wheel machine rail clamping device adopts a highly integrated design, so that the mechanical structure is greatly simplified, and the weight is reduced while the clamping force is ensured. Through the ingenious design of the clamping cylinder, the whole structure is simplified, and the device has the advantages of being resistant to pollution and severe environment, simple in structure, small in size, convenient to maintain and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of bucket wheel machines, and in particular relates to a rail clamp for a bucket wheel machine. Background Art

[0002] The mechanical structure of the bucket wheel excavator rail clamp is an opening and closing component, which is an indispensable and important component of the bucket wheel excavator rail clamp. The quality of the mechanical structure directly affects the braking effect. There are mainly two types of existing rail clamp mechanical structures. One is that the movable arm is connected to the connecting rod, the counterweight is connected to the counterweight arm, and the hydraulic cylinder is connected to the counterweight arm to achieve clamping and loosening actions. The other is that the movable arm is connected to the cylinder, the movable arm is connected to the connecting rod, and the clamping and loosening actions are achieved by compressing the external spring or releasing the spring force through the action of the hydraulic cylinder. These two connection methods have complex mechanical structures, poor stability and are not easy to maintain. Summary of the invention

[0003] In view of the defects of the above-mentioned prior art, the purpose of the utility model is to provide a bucket wheel excavator track clamp, which is redesigned for the mechanical structure of the existing bucket wheel excavator track clamp, adopts a highly integrated design, and eliminates the counterweight and counterweight arm, external spring, connecting rod and other structures.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a bucket wheel excavator track clamp, including a clamping cylinder, a first swing arm and a second swing arm, telescopic parts are formed at both ends of the clamping cylinder, the telescopic part at one end of the clamping cylinder is hinged to the first swing arm, and the telescopic part at the other end of the clamping cylinder is hinged to the second swing arm, coaxial axial holes are arranged at the lower parts of the first swing arm and the second swing arm, the first swing arm and the second swing arm are respectively mounted on the main shaft through the axial holes and fastened by a stop frame, the first swing arm and the second swing arm are symmetrically arranged on both sides of the track, the first swing arm is connected to the stop frame by a first centering spring, and the second swing arm is connected to the stop frame by a second centering spring.

[0005] Furthermore, the first centering spring and the second centering spring are symmetrically arranged, one end of the first centering spring is connected to the middle of the first swing arm through a movable spring seat, and the other end of the first centering spring is connected to the stop frame through a fixed spring seat, one end of the second centering spring is connected to the middle of the second swing arm through a movable spring seat, and the other end of the second centering spring is connected to the stop frame through a fixed spring seat.

[0006] Furthermore, a stop seat is detachably connected and fixed to the end of the main shaft, and the stop frame is welded to the stop seat.

[0007] Furthermore, the main shaft and the bucket wheel excavator running mechanism are fixed by bolts.

[0008] Furthermore, wear-resistant lip plates matching with the rails are installed at the jaws at the bottom ends of the first swing arm and the second swing arm.

[0009] Furthermore, the telescopic portion at one end of the clamping cylinder is hinged to the first swing arm through a first pin shaft, and the telescopic portion at the other end of the clamping cylinder is hinged to the second swing arm through a second pin shaft.

[0010] Furthermore, the clamping cylinder is a bidirectional hydraulic cylinder, and the clamping cylinder drives the first swing arm and the second swing arm to rotate and swing around the main shaft as the axis.

[0011] The beneficial effects of the utility model are as follows: the bucket wheel machine rail clamp of the utility model adopts a highly integrated design, and eliminates the counterweight and counterweight arm, external spring, connecting rod and other structures. The mechanical structure is greatly simplified, and the clamping force is ensured while being lightweight. Through the ingenious design of the clamping cylinder, the overall structure is simplified, and it has the characteristics of anti-pollution, anti-harsh environment, simple structure, small size, and easy maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of the rail clamp of a bucket wheel excavator;

[0013] Figure 2 for Figure 1 AA section view;

[0014] Figure 3 It is the assembly drawing of bucket wheel machine rail clamp and bucket wheel machine running mechanism;

[0015] Figure 4 It is a cross-sectional view of the clamping cylinder structure;

[0016] In the figure: 1, clamping cylinder, 2, first pin shaft, 3, second pin shaft, 4, first swing arm, 5, movable spring seat, 6, first centering spring, 7, fixed spring seat, 8, stop frame, 9, wear-resistant lip plate, 10, second swing arm, 11, stop seat, 12, screw, 13, main shaft, 14, second centering spring, 15, track, 16, bucket wheel excavator running mechanism. DETAILED DESCRIPTION

[0017] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0018] A bucket wheel machine rail clamp comprises a clamping cylinder 1, a first swing arm 4 and a second swing arm 10. Telescopic parts are formed at both ends of the clamping cylinder 1. The telescopic part at one end of the clamping cylinder 1 is hinged to the first swing arm 4 through a first pin shaft 2, and the telescopic part at the other end of the clamping cylinder 1 is hinged to the second swing arm 10 through a second pin shaft 3. The first swing arm 4 and the second swing arm 10 are provided with coaxial shaft holes at the lower part. The first swing arm 4 and the second swing arm 10 are respectively sleeved on the main shaft 13 through the shaft holes and fastened by the stop frame 8. The first swing arm 4 and the second swing arm 10 are symmetrically arranged on both sides of the track. The first swing arm 4 and the stop frame 8 are connected by a first centering spring 6, and the second swing arm 10 and the stop frame 8 are connected by a second centering spring 14. The clamping cylinder is a bidirectional hydraulic oil cylinder, and the clamping cylinder drives the first swing arm and the second swing arm to rotate and swing around the main shaft as the axis, thereby clamping or releasing the track.

[0019] Furthermore, the first centering spring 4 and the second centering spring 10 are symmetrically arranged, one end of the first centering spring 6 is connected to the middle of the first swing arm 4 through the movable spring seat 5, and the other end of the first centering spring 6 is connected to the stop frame 8 through the fixed spring seat 7, one end of the second centering spring 14 is connected to the middle of the second swing arm 10 through the movable spring seat 5, and the other end of the second centering spring 14 is connected to the stop frame 8 through the fixed spring seat 7.

[0020] Furthermore, the end of the main shaft 13 is detachably connected and fixed with a stop seat 11 via a screw 12 , and the stop frame 8 is welded to the stop seat 11 .

[0021] Furthermore, the main shaft 13 and the bucket wheel excavator running mechanism 16 are fixed by bolts.

[0022] Furthermore, wear-resistant lip plates 9 matching with the rails are installed at the jaws at the bottom ends of the first swing arm 4 and the second swing arm 10 .

[0023] Based on the above technical scheme, in the rail clamp of the utility model, the main shaft 13 is fixed to the bucket wheel traveling mechanism by bolts. The clamping cylinder 1 and the first swing arm 4 are connected together by the first pin 2, and the clamping cylinder 1 and the second swing arm 10 are connected together by the second pin 3. After the lower axial holes of the first swing arm 4 and the second swing arm 10 are coaxially aligned, they are sleeved on the main shaft 13 and fastened with the stop seat 11 and fastened by the screw 12. The movable spring seat 5 is fixed to the first swing arm 4 by screws, and the stop frame 8 is welded to the stop seat 11 to form an integral fixed structure. The fixed spring seat 7 is fixed to the stop frame 8 by screws. The first centering spring 6 and the second centering spring 14 are connected by the movable spring seat 5 and the fixed spring seat 7, so that the first swing arm 4 and the second swing arm 10 are fixed and centered. The wear-resistant lip plate 9 is fixed to the base of the first swing arm 4 and the second swing arm 10 by screws, so that it rubs against the track when it moves.

[0024] The working principle of the track clamp of the utility model is as follows: when the supporting cylinder is in a free state, the first swing arm 4 and the second swing arm 10 are in a tensioned state by forcing outward. When it needs to be loosened, the clamping cylinder 1 is compressed by the power station to overcome the elastic force of the disc spring inside the clamping cylinder. The left and right swing arms tighten the track and loosen it. The two centering springs can play a centering role to prevent the mechanical structure from swinging along the main shaft axis. When the track laying size exceeds the standard, the wear-resistant lip plate on one side may be worn. The overall structure of the centering spring will have a compensating swing angle, which can well avoid hard collisions and rigid wear. The clamping principle realized by the clamping cylinder of the utility model avoids the hard friction caused by track deviation through the centering spring. It has a compact structure, lightweight design and simple structure.

[0025] It should be noted that the parts not described in detail in the present invention are prior art.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0030] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0031] The above examples are only the best embodiments of the present invention. Obviously, the present invention is not limited to the above examples, and there are many variations. All variations that can be directly derived or associated with the contents disclosed by a person skilled in the art should be considered as the protection scope of the present invention.

Claims

1. A bucket wheel excavator rail clamp, characterized in that: It includes a clamping cylinder, a first swing arm and a second swing arm, telescopic parts are formed at both ends of the clamping cylinder, the telescopic part at one end of the clamping cylinder is hinged to the first swing arm, and the telescopic part at the other end of the clamping cylinder is hinged to the second swing arm, coaxial axial holes are arranged at the lower parts of the first swing arm and the second swing arm, the first swing arm and the second swing arm are respectively mounted on the main shaft through the axial holes and fastened by a stop frame, the first swing arm and the second swing arm are symmetrically arranged on both sides of the track, the first swing arm is connected to the stop frame through a first centering spring, and the second swing arm is connected to the stop frame through a second centering spring.

2. A bucket wheel excavator rail clamp according to claim 1, characterized in that: The first centering spring and the second centering spring are symmetrically arranged, one end of the first centering spring is connected to the middle of the first swing arm through a movable spring seat, and the other end of the first centering spring is connected to the stop frame through a fixed spring seat, one end of the second centering spring is connected to the middle of the second swing arm through a movable spring seat, and the other end of the second centering spring is connected to the stop frame through a fixed spring seat.

3. The bucket wheel excavator rail clamp according to claim 1, characterized in that: The end of the main shaft is detachably connected and fixed with a stop seat, and the stop frame is welded on the stop seat.

4. The bucket wheel excavator rail clamp according to claim 1, characterized in that: The main shaft and the bucket wheel machine running mechanism are fixed by bolts.

5. The bucket wheel excavator rail clamp according to claim 1, characterized in that: The jaws at the bottom ends of the first swing arm and the second swing arm are provided with wear-resistant lip plates matching with the rails.

6. The bucket wheel excavator rail clamp according to claim 1, characterized in that: The telescopic part at one end of the clamping cylinder is hinged to the first swing arm through a first pin shaft, and the telescopic part at the other end of the clamping cylinder is hinged to the second swing arm through a second pin shaft.

7. The bucket wheel excavator rail clamp according to claim 1, characterized in that: The clamping cylinder is a bidirectional hydraulic cylinder, which drives the first swing arm and the second swing arm to rotate and swing around the main shaft.

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