Buffering blocking beam suitable for cage vertical shaft

Abstract

The buffering blocking beam comprises a vertical shaft blocking beam body, the #-shaped vertical shaft blocking beam body is installed over the vertical shaft, a cage cable window is formed in the middle of the vertical shaft blocking beam body, four pressure discharging devices arranged in a rectangular shape are arranged on the two sides of the cage cable window respectively, and telescopic buffering columns are perpendicularly installed on the lower surfaces of the pressure discharging devices. The lower end of the telescopic buffer column is fixedly connected with a double-wheel guide clamping assembly; the two double-wheel guide clamping assemblies correspond to one main buffering strip, the telescopic buffering columns capable of absorbing impact and the main buffering strips capable of transmitting the impact force to the telescopic buffering columns are arranged on the blocking beam, the device can serve as the last safety measure when overwinding occurs, sufficient buffering is provided for a cage, and the safety of the cage is improved. And the safety of the vertical shaft can be effectively improved.

Description

Technical Field

[0001] The utility model relates to a safety device for a vertical shaft in a coal mine, specifically a buffer crossbeam applicable to a cage vertical shaft. Background Art

[0002] According to regulations, an overwind section needs to be set at the wellhead of the vertical shaft in a coal mine, and a buffer crossbeam needs to be installed in the upper part of the overwind section to further improve safety. Currently, the buffer crossbeam is mainly a cross-shaped steel frame beam or a concrete beam. If the cage undergoes overwind and does not stop in time, it will directly impact the crossbeam, and both the crossbeam and the cage will be damaged at that time, causing a large amount of economic losses.

[0003] Currently, the utility model with the patent publication number CN204038828U discloses a vertical shaft hoisting overwind buffer and cage supporting device, which includes a headframe, a buffer device and a cage supporting device. The characteristics are as follows: the buffer device mainly includes a variable force buffer, a buffer crossbeam and a buffer steel wire rope. The variable force buffer is installed on the guide rail beam of the headframe, and a steel wire rope is wound around the variable force buffer. The other end of the steel wire rope is connected to the buffer crossbeam. The cage supporting device includes a cage support, a cage support buffer and a cage support buffer steel wire rope. The cage support is located below the cage and is connected to the cage support buffer through the cage support buffer steel wire rope. The utility model overcomes the deficiencies of the prior art. When a high-speed overwind occurs in the vertical shaft hoisting system, the buffer device can smoothly decelerate the container with high-speed overwind and stop the container within an effective distance, effectively avoiding the occurrence of accidents; when a large-scale sliding accident occurs in the vertical shaft hoisting system, when the container passes through the buffer device, decelerates and impacts the anti-collision beam and then falls after the rope breaks, the cage supporting device can retain the falling container and avoid the expansion of the accident.

[0004] As can be seen from the above disclosed technical content, as the prior art, although the utility model with the publication number CN204038828U can provide a certain buffer, it is mainly used to prevent the falling after the anti-collision beam rope breaks and cannot provide sufficient buffer for the cage when the cage rises rapidly. Content of the Utility Model

[0005] Aiming at the problems existing in the above prior art, the utility model provides a buffer crossbeam applicable to a cage vertical shaft, which can be used as the last insurance measure in case of overwind, provide sufficient buffer for the cage, and effectively improve the safety of the vertical shaft. In addition, the buffer crossbeam applicable to the cage vertical shaft proposed in the above embodiment of the utility model can also have the following additional technical features: Further, the

[0006] To achieve the above object, the utility model provides a buffer beam applicable to the shaft of a cage, which comprises a shaft beam, a pressure relief device, a reversing chamber, a flow-limiting pipe, a cage cable window, a buffer belt connecting belt, a buffer belt mounting clamping plate, an oil storage barrel and a lifting steel wire rope. The cross-shaped shaft beam is installed directly above the shaft. A cage cable window is opened in the middle of the shaft beam. Four pressure relief devices arranged in a rectangular pattern are respectively arranged on both sides of the cage cable window. A telescopic buffer column is vertically installed on the lower surface of the pressure relief device, and the lower end of the telescopic buffer column is fixedly connected to a double-wheel guiding clamping assembly; two double-wheel guiding clamping assemblies correspond to one main buffer belt; buffer belt mounting beams are respectively fixedly installed on the lower surfaces of the shaft beam on both sides of the four pressure relief devices. One end of the main buffer belt is fixedly connected to the lower surface of a buffer belt mounting beam through a buffer belt mounting clamping plate. The other end of the main buffer belt passes through two opposed double-wheel guiding clamping assemblies and is then connected to the buffer belt mounting clamping plate on the lower surface of the other buffer belt mounting beam. The middle section of the main buffer belt between the two double-wheel guiding clamping assemblies is lifted upward by 30 to 40 cm through a lifting steel wire rope. The middle sections of the two main buffer belts between the two double-wheel guiding clamping assemblies are connected through a buffer belt connecting belt.

[0007] As a further improvement of the utility model, the pressure relief device comprises a reversing chamber, a flow-limiting pipe, a diverter and a buffer telescopic column connecting pipe. A reversing chamber is opened in the middle of the pressure relief device. The reversing chamber communicates with the telescopic buffer column through a buffer telescopic column connecting pipe. The reversing chamber is connected to an opening on the surface of the pressure relief device through a flow-limiting pipe. The opening is equipped with a diverter with the opening facing downward. A plastic baffle is installed on the cross-section of the flow-limiting pipe; a fuel filling hole is opened on the side of the pressure relief device.

[0008] As a further improvement of the utility model, the diverter is equipped with an oil storage barrel, and the oil storage barrel is installed on the surface of the pressure relief device through a bracket.

[0009] As a further improvement of the utility model, the telescopic buffer column adopts a sleeve sleeved telescopic column, and the inside of the sleeve is filled with buffer oil.

[0010] As a further improvement of the utility model, the main buffer belt and the buffer belt connecting belt are fixed by arranging multiple steel wire ropes side by side and are wrapped with a canvas sleeve and buffer cotton on the outside.

[0011] As a further improvement of the utility model, the double-wheel guiding clamping assembly comprises two fixed vertical plates and two rollers. The rollers arranged up and down are installed between the two fixed vertical plates through a rotating shaft, and the two rollers clamp the main buffer belt; the two fixed vertical plates are connected to the lower end of the telescopic buffer column through a bracket or a base plate.

[0012] With the above solution, the utility model has at least the following advantages: Compared with the conventional bumper beam, by providing telescopic buffer columns that can absorb impacts on the bumper beam and a main buffer belt that can transmit the impact force to the telescopic buffer columns, it can serve as the last insurance measure during overwinding, provide sufficient buffering for the cage, and effectively improve the safety of vertical shafts. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only those of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0014] Figure 1 is a top view three-dimensional schematic diagram of a buffer bumper beam applicable to a cage vertical shaft;

[0015] Figure 2 is a bottom view three-dimensional schematic diagram of a buffer bumper beam applicable to a cage vertical shaft;

[0016] Figure 3 is a structural diagram of the pressure relief device of a buffer bumper beam applicable to a cage vertical shaft;

[0017] Figure 4 is a bottom view three-dimensional diagram of the oil storage barrel installed for a buffer bumper beam applicable to a cage vertical shaft;

[0018] In the figure: 1, vertical shaft bumper beam; 2, pressure relief device; 2-1, reversing chamber; 2-2, flow-limiting pipe; 2-3, deflector; 2-4, buffer telescopic column connecting pipe; 2-5, plastic baffle; 3, telescopic buffer column; 4, double-wheel guiding and clamping assembly; 5, main buffer belt; 6, buffer belt installation beam; 7, cage cable window; 8, buffer belt connecting belt; 9, buffer belt installation clamping plate; 10, oil storage barrel; 11, lifting steel wire rope. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following details the embodiments of the present utility model. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present utility model and should not be construed as a limitation of the present utility model.

[0020] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, in the description of this specification, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of this application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0021] The following describes the buffer beam applicable to the shaft cage of the present utility model in conjunction with the drawings.

[0022] In the first embodiment of this application, as Figures 1 to 3 shown, the buffer beam applicable to the shaft cage of the present utility model (hereinafter simply referred to as "the present invention") includes a shaft beam 1, a shaft cage cable window 7, a buffer belt connection belt 8, a buffer belt mounting card plate 9, an oil storage barrel 10, and a lifting steel wire rope 11. The cross-shaped shaft beam 1 is installed directly above the shaft. A shaft cage cable window 7 is opened in the middle of the shaft beam 1. Four pressure relief devices 2 arranged in a rectangular pattern are respectively arranged on both sides of the shaft cage cable window 7. A telescopic buffer column 3 is vertically installed on the lower surface of the pressure relief device 2, and the lower end of the telescopic buffer column 3 is fixedly connected to a double-wheel guiding and clamping assembly 4; two double-wheel guiding and clamping assemblies 4 correspond to one main buffer belt 5; buffer belt mounting beams 6 are respectively fixedly installed on the lower surfaces of the shaft beam 1 on both sides of the four pressure relief devices 2. One end of the main buffer belt 5 is fixedly connected to the lower surface of a buffer belt mounting beam 6 through a buffer belt mounting card plate 9. The other end of the main buffer belt 5 passes through two opposing double-wheel guiding and clamping assemblies 4 and is then connected to the buffer belt mounting card plate 9 on the lower surface of the other buffer belt mounting beam 6. The middle section of the main buffer belt 5 between the two double-wheel guiding and clamping assemblies 4 is lifted upward by 30 to 40 centimeters through a lifting steel wire rope 11. The middle sections of the two main buffer belts 5 between the two double-wheel guiding and clamping assemblies 4 are connected through a buffer belt connection belt 8. The pressure relief device 2 includes a commutation chamber 2-1, a flow-limiting pipe 2-2, a diverter 2-3, and a buffer telescopic column connection pipe 2-4. A commutation chamber 2-1 is opened in the middle of the pressure relief device 2. The commutation chamber 2-1 communicates with the telescopic buffer column 3 through a buffer telescopic column connection pipe 2-4. The commutation chamber 2-1 is connected to the opening on the surface of the pressure relief device 2 through a flow-limiting pipe 2-2. The opening is equipped with a diverter 2-3, and the opening of the diverter 2-3 faces downward. A plastic baffle 2-5 is installed on the cross-section of the flow-limiting pipe 2-2; a fuel filling hole is opened on the side of the pressure relief device 2.

[0023] A vertical shaft hoisting overwind buffer and cage supporting device with the utility model patent publication number CN204038828U (hereinafter referred to as "this patent") can provide a certain degree of buffering. However, it is mainly used to prevent the cage from falling after breaking the rope and hitting the bumper beam, and it cannot provide sufficient buffering for the cage when it rises rapidly. The present invention provides a telescopic buffer column 3 capable of absorbing impact on the retaining beam and a main buffer belt 5 capable of transmitting the impact force to the telescopic buffer column 3, which can serve as the last insurance measure in case of overwind, provide sufficient buffering for the cage, and effectively improve the safety of the vertical shaft.

[0024] The structure of the second embodiment is basically the same as that of the first embodiment, except that, as Figure 4 shown, the diverter 2-3 is equipped with an oil storage barrel 10, and the oil storage barrel 10 is installed on the surface of the pressure relief device 2 through a bracket, thus preventing the buffer oil from splashing everywhere when it is discharged and reducing the workload of equipment restoration.

[0025] To further optimize the working efficiency of the present application and make the buffering effect better, the telescopic buffer column 3 adopts a sleeve sleeved telescopic column, and the sleeve is filled with buffer oil. To enable the main buffer belt 5 and the buffer belt connecting belt 8 to withstand the impact during cage overwind, the main buffer belt 5 and the buffer belt connecting belt 8 are fixed by arranging multiple steel wire ropes side by side and are wrapped with a canvas sleeve and buffer cotton outside. To enable the main buffer belt 5 to better withstand the impact and transmit the impact force to the telescopic buffer column 3, the double-wheel guiding and clamping assembly 4 includes two fixed vertical plates and two rollers. The two fixed vertical plates are installed with rollers arranged up and down through a rotating shaft, and the two rollers clamp the main buffer belt 5; the two fixed vertical plates are connected to the lower end of the telescopic buffer column 3 through a bracket or a base plate.

[0026] During use, install the buffer retaining beam suitable for the cage vertical shaft and fill the telescopic buffer column 3 with buffer oil, then the equipment can be put into operation. Among them, the cage lifting steel cable needs to pass through the window formed by the main buffer belt 5 and the buffer belt connecting belt 8 and the cage cable window 7 so that the operation of the cage steel cable is not hindered.

[0027] When the present utility model is in use, the specific working process is as follows:

[0028] When the cage overwinds, the cage first contacts the main buffer belt 5 and the buffer belt connecting belt 8. Since the window formed by the main buffer belt 5 and the buffer belt connecting belt 8 gets stuck on the upper surface of the cage, the cage is blocked. As the cage continues to rise, the main buffer belt 5 and the buffer belt connecting belt 8 follow and rise. Due to the rise of the main buffer belt 5, the lower end point of the main buffer belt 5 follows and rises. The lower end point of the main buffer belt 5 conducts the impact force to the double-wheel guiding and clamping assembly 4, and the double-wheel guiding and clamping assembly 4 pushes the telescopic buffer column 3 to contract. At this time, since the self-weight of the telescopic buffer column 3 and the weight of the built-in hydraulic oil can already absorb part of the overwinding impact, if the cage still has impact momentum, the telescopic buffer column 3 will be further compressed. The telescopic column of the telescopic buffer column 3 presses the hydraulic oil into the commutation chamber 2-1 of the pressure discharge device 2 and sprays it out from the flow-limiting pipe 2-2. When the flow-limiting pipe 2-2 sprays out, it will first break the plastic baffle 2-5 and then enter the oil storage barrel 10 under the action of the deflector 2-3.

[0029] In summary, for the buffer crossbeam applicable to the cage vertical shaft in the embodiment of the present utility model, by arranging the telescopic buffer column 3 capable of absorbing impact on the crossbeam to absorb the overwinding impact, and the main buffer belt 5 and the buffer belt connecting belt 8 capable of transmitting the impact force to the telescopic buffer column 3, it can serve as the last insurance measure in case of overwinding, provide sufficient buffering for the cage, and effectively improve the safety of the vertical shaft.

[0030] In the description of this specification, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0031] In the present utility model, unless otherwise clearly specified and defined, the terms such as "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium; it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0032] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0033] Those of ordinary skill in the art should understand that: the discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope of the present invention is limited to these examples; under the concept of the present invention, the technical features between the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above, which are not provided in detail for the sake of brevity. Any omission, modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A buffer beam applicable to a cage shaft, comprising a shaft beam (1). The shaft beam (1) in the shape of a well is installed directly above the shaft. A cage cable window (7) is opened in the middle of the shaft beam (1). It is characterized in that, On both sides of the described cage cable window (7), four pressure relief devices (2) arranged in a rectangular pattern are respectively provided. A telescopic buffer column (3) is vertically installed on the lower surface of the pressure relief device (2), and the lower end of the telescopic buffer column (3) is fixedly connected to a double-wheel guiding and clamping assembly (4); two double-wheel guiding and clamping assemblies (4) correspond to one main buffer belt (5); buffer belt installation beams (6) are respectively and fixedly installed on the lower surfaces of the vertical shaft retaining beams (1) on both sides of the four pressure relief devices (2). One end of the main buffer belt (5) is fixedly connected to the lower surface of a buffer belt installation beam (6) through a buffer belt installation clamping plate (9). The other end of the main buffer belt (5) passes through two opposing double-wheel guiding and clamping assemblies (4) and then is connected to the buffer belt installation clamping plate (9) on the lower surface of another buffer belt installation beam (6). The middle section of the main buffer belt (5) between the two double-wheel guiding and clamping assemblies (4) is lifted upward by 30 to 40 cm through a lifting steel wire rope (11). The middle sections of the two main buffer belts (5) between the two double-wheel guiding and clamping assemblies (4) are connected through a buffer belt connecting belt (8).

2. The buffer crossbeam applicable to the cage vertical shaft according to claim 1, wherein The described pressure relief device (2) includes a commutation chamber (2-1), a flow-limiting pipe (2-2), a diverter (2-3), and a buffer telescopic column connecting pipe (2-4). A commutation chamber (2-1) is opened in the middle of the pressure relief device (2). The commutation chamber (2-1) communicates with the telescopic buffer column (3) through the buffer telescopic column connecting pipe (2-4). The commutation chamber (2-1) is connected to an opening on the surface of the pressure relief device (2) through the flow-limiting pipe (2-2). The opening is equipped with a diverter (2-3) with the opening facing downward. A plastic baffle (2-5) is installed on the cross-section of the flow-limiting pipe (2-2); an oil filling hole is opened on the side of the pressure relief device (2).

3. The buffer beam applicable to the shaft cage vertical shaft according to claim 2, characterized in that, The described diverter (2-3) is equipped with an oil storage barrel (10), and the oil storage barrel (10) is installed on the surface of the pressure relief device (2) through a bracket.

4. The buffer beam applicable to the shaft cage vertical shaft according to claim 1, characterized in that, The described telescopic buffer column (3) adopts a sleeve sleeved telescopic column, and the sleeve is filled with buffer oil.

5. The buffer beam applicable to the shaft cage of a vertical shaft according to claim 4, characterized in that, The described main buffer belt (5) and buffer belt connecting belt (8) are fixed by arranging multiple strands of steel wire ropes side by side, and are wrapped with a canvas sleeve and buffer cotton on the outside.

6. The buffer beam applicable to the shaft cage vertical shaft according to claim 1, characterized in that The described double-wheel guiding and clamping assembly (4) includes two fixed vertical plates and two rollers. The rollers arranged up and down are installed between the two fixed vertical plates through a rotating shaft, and the two rollers clamp the main buffer belt (5); the two fixed vertical plates are connected to the lower end of the telescopic buffer column (3) through a bracket or a base plate.

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