Mine ventilation wind speed measuring device

Abstract

The utility model discloses a mine ventilation wind speed measuring device which comprises a rack, a driving shaft is rotatably installed on the rack, a rotation driving device is installed on the rack, the output end of the rotation driving device is in transmission connection with the driving shaft, a plurality of connecting rods are rotatably installed on the rack, and the bottom ends of the connecting rods are provided with the same connecting frame. A positive ratchet wheel is installed on the driving shaft, a first pawl is installed on the connecting rod and matched with the positive ratchet wheel, and a rotating frame is rotationally installed on the connecting frame. The driving shaft rotates in different rotating directions, and the monitoring device can be driven to rotate around the rack or extend or contract relative to the rack through meshing of the forward ratchet wheel, the first pawl or the reverse ratchet wheel and the second pawl, so that monitoring point positions of the monitoring device are increased, and the monitoring effect is better; the rotating driving device drives the driving shaft to rotate forwards and backwards, so that the monitoring device can rotate and stretch out and draw back, resources are saved, and control is easy and clear.

Description

TECHNICAL FIELD

[0001] The utility model relates to mine wind speed measuring device technical field, especially a mine ventilation wind speed measuring device. BACKGROUND

[0002] The inclined shaft and vertical shaft in the underground development of mine can be called mine, and the mine has a large number of rare metals, coal and other mineral resources, which are important basic raw materials or industrial raw materials in industry, for example, coal can be used in power generation, smelting and other fields.

[0003] In order to understand the internal ventilation and air flow field distribution of mine, in order to guarantee the safety production of mine, at present, most of the point wind measurement method is used, that is, a measuring point is selected in the mine, and the anemometer is placed at the measuring point for a certain time of measurement, and the average wind speed of the point is calculated according to the anemometer reading and measurement time.

[0004] The point wind measurement method in the prior art measures the wind speed, and the anemometer only measures at the fixed position of the mine, so the measurement data is insufficient to reflect the wind field situation of the wide area, therefore, a mine ventilation wind speed measuring device needs to be designed. UTILITY MODEL CONTENT

[0005] Therefore, it is necessary to provide a mine ventilation wind speed measuring device aiming at the above technical problems.

[0006] In order to achieve the above purpose, the utility model provides a mine ventilation wind speed measuring device, which comprises a rack, a driving shaft is rotatably installed on the rack, a rotary driving device is installed on the rack, the output end of the rotary driving device is in transmission connection with the driving shaft, a plurality of connecting rods are rotatably installed on the rack, the bottom ends of the plurality of connecting rods are provided with a same connecting frame, a positive ratchet is installed on the driving shaft, a pawl one is installed on the connecting rod, the pawl one is matched with the positive ratchet, a rotating frame is rotatably installed on the connecting frame, a negative ratchet is installed on the driving shaft, a plurality of pawls two are installed on the rotating frame, the pawls two are matched with the negative ratchet, a transmission shaft is installed on the connecting frame, the transmission shaft and the rotating frame are in transmission connection through a transmission assembly, and a monitoring device is installed on the transmission assembly.

[0007] Preferably, a spring one is installed on the connecting rod, and the output end of the spring one is connected with the pawl one.

[0008] Preferably, a spring two is installed in the rotating frame, and the output end of the spring two is connected with the pawl two.

[0009] Preferably, a U-shaped piece is installed on the transmission assembly, and the monitoring device is installed on the U-shaped piece.

[0010] Preferably, an installation plate is installed on the rack.

[0011] Preferably, the connecting rod is rotatably connected with a plurality of universal beads I, and the universal beads I abut against the rack.

[0012] Preferably, the rotating frame is rotatably connected with a plurality of universal beads II, and the universal beads II abut against the connecting frame.

[0013] Compared with the prior art, the technical scheme has at least one of the following beneficial effects:

[0014] By rotating the driving shaft in different directions, the monitoring device can be rotated around the rack or extended or contracted relative to the rack through the engagement of the positive ratchet, the pawl I or the negative ratchet, the pawl II, thereby increasing the monitoring points of the monitoring device and improving the monitoring effect.

[0015] The rotation and extension of the monitoring device can be realized by rotating the driving shaft in the forward and reverse directions by the rotary driving device, thereby saving resources and simplifying the control. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 is a front view of an embodiment of the present application;

[0017] Fig. 2 is an internal perspective view of an embodiment of the present application;

[0018] Fig. 3 is a perspective view of an embodiment of the present application;

[0019] In the drawings, 1 is a rack; 2 is a driving shaft; 3 is a rotary driving device; 4 is a connecting rod; 5 is a connecting frame; 6 is a positive ratchet; 7 is a pawl I; 8 is a rotating frame; 9 is a negative ratchet; 10 is a pawl II; 11 is a transmission shaft; 12 is a transmission assembly; 13 is a monitoring device; 14 is a spring I; 15 is a spring II; 16 is a U-shaped piece; 17 is a mounting plate; 18 is a universal bead I; 19 is a universal bead II. DETAILED DESCRIPTION

[0020] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings. In the following description, many specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0021] Please refer to Figs. 1 to 3The embodiment of the application provides a mine ventilation wind speed measuring device, which comprises a rack 1, a driving shaft 2 rotatably installed on the rack 1, a rotary driving device 3 installed on the rack 1, the rotary driving device 3 being a servo motor, the output end of the rotary driving device 3 being in transmission connection with the driving shaft 2, a plurality of connecting rods 4 rotatably installed on the rack 1, a same connecting frame 5 being installed at the bottom ends of the plurality of connecting rods 4, a positive ratchet wheel 6 being installed on the driving shaft 2, a pawl one 7 being hingedly connected to the connecting rod 4, the pawl one 7 being arranged in cooperation with the positive ratchet wheel 6, a rotating frame 8 being rotatably installed on the connecting frame 5, a reverse ratchet wheel 9 being installed on the driving shaft 2, a plurality of pawls two 10 being hingedly connected to the rotating frame 8, the pawls two 10 being arranged in cooperation with the reverse ratchet wheel 9, a transmission shaft 11 being installed on the connecting frame 5, the transmission shaft 11 being in transmission connection with the rotating frame 8 through a transmission assembly 12, the transmission assembly 12 being a chain transmission assembly, a monitoring device 13 being installed on the transmission assembly 12, the monitoring device 13 being a wind speed sensor, and the monitoring device 13 being in signal connection with the rotary driving device 3 through a signal processor.

[0022] In the embodiment, when the rotary driving device 3 drives the driving shaft 2 to rotate forward, the positive ratchet wheel 6 on the driving shaft 2 can be clamped and limited by the pawl one 7 hingedly connected to the connecting rod 4, so that the driving shaft 2 can drive the connecting rod 4 and the connecting frame 5 to rotate, that is, drive the monitoring device 13 on the connecting frame 5 to rotate around the rack 1; when the rotary driving device 3 drives the driving shaft 2 to rotate reversely, the reverse ratchet wheel 9 on the driving shaft 2 can be clamped and limited by the pawls two 10 on the rotating frame 8, so that the driving shaft 2 can drive the rotating shaft 8 to rotate on the connecting frame 5, so that the connecting frame 5 can drive the transmission shaft 11 to rotate together under the drive of the transmission assembly 12, so that the monitoring device 13 installed on the transmission assembly 12 can be stretched or contracted relative to the rack 1; through the characteristics of the ratchet and pawl, when the driving shaft 2 rotates forward, the reverse ratchet wheel 9 and the pawls two 10 will not be clamped, and when the driving shaft 2 rotates reversely, the positive ratchet wheel 6 and the pawl one 7 will not be clamped.

[0023] In some embodiments, in order to facilitate the clamping of the positive ratchet wheel 6 and the pawl one 7, a spring one 14 is installed on the connecting rod 4, and the output end of the spring one 14 is connected with the pawl one 7. The spring one 14 can generate a certain tension on the pawl one 7, so that the pawl one 7 is always in abutment with the positive ratchet wheel 6, thereby avoiding that the horizontally arranged pawl one 7 is no longer in abutment after being pushed away by the positive ratchet wheel 6.

[0024] In some embodiments, in order to facilitate the clamping of the reverse ratchet wheel 9 and the pawls two 10, a spring two 15 is installed in the rotating frame 8, and the output end of the spring two 15 is connected with the pawls two 10. The spring two 15 can generate a certain tension on the pawls two 10, so that the pawls two 10 are always in abutment with the reverse ratchet wheel 9, thereby avoiding that the horizontally arranged pawls two 10 are no longer in abutment after being pushed away by the reverse ratchet wheel 9.

[0025] In some embodiments, in order to facilitate the installation of the monitoring device 13, the transmission assembly 12 is provided with a U-shaped piece 16, and the monitoring device 13 is installed on the U-shaped piece 16.

[0026] In some embodiments, in order to facilitate the installation of the rack 1, the rack 1 is provided with a mounting plate 17.

[0027] In some embodiments, in order to reduce the friction between the connecting rod 4 and the rack 1 when the connecting rod 4 rotates, the connecting rod 4 is provided with a plurality of first universal beads 18 rotatably installed thereon, and the first universal beads 18 abut against the rack 1.

[0028] In some embodiments, in order to reduce the friction between the rotating frame 8 and the connecting frame 5 when the rotating frame 8 rotates, the rotating frame 8 is provided with a plurality of second universal beads 19 rotatably installed thereon, and the second universal beads 19 abut against the connecting frame 5.

[0029] The technical features of the above embodiments can be combined in any manner. In order to make the description concise, not all possible combinations of the technical features in the above embodiments are described, but as long as the combinations of the technical features do not contradict, they should be considered within the scope of the description.

[0030] The above embodiments only express several implementation manners of the utility model, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the utility model patent. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which are within the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

[0031] In the description of the utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0032] In addition, the terms "first", "second" are only used for descriptive purpose and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0033] In the utility model, unless otherwise specifically defined and limited, the terms "installation", "connection", "connection", "fixing" and other terms should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

Claims

1. A mine ventilation air velocity measuring device comprising a frame (1), characterised in that, The rack (1) is rotatably installed with a driving shaft (2), the rack (1) is installed with a rotary driving device (3), the output end of the rotary driving device (3) is in transmission connection with the driving shaft (2), the rack (1) is rotatably installed with a plurality of connecting rods (4), the bottom ends of the plurality of connecting rods (4) are installed with a same connecting frame (5), the driving shaft (2) is installed with a positive ratchet (6), the connecting rod (4) is hingedly connected with a pawl one (7), the pawl one (7) is in matched arrangement with the positive ratchet (6), the connecting frame (5) is rotatably installed with a rotating frame (8), the driving shaft (2) is installed with a reverse ratchet (9), the rotating frame (8) is hingedly connected with a plurality of pawls two (10), the pawls two (10) are in matched arrangement with the reverse ratchet (9), the connecting frame (5) is installed with a transmission shaft (11), the transmission shaft (11) and the rotating frame (8) are in transmission connection through a transmission assembly (12), the transmission assembly (12) is installed with a monitoring device (13).

2. The mine ventilation air velocity measuring device of claim 1, wherein, The connecting rod (4) is installed with a spring one (14), the output end of the spring one (14) is connected with the pawl one (7).

3. The mine ventilation air velocity measuring device of claim 1, wherein, The rotating frame (8) is installed with a spring two (15) inside, the output end of the spring two (15) is connected with the pawl two (10).

4. The mine ventilation air velocity measuring device of claim 1, wherein, The transmission assembly (12) is installed with a U-shaped piece (16), the monitoring device (13) is installed on the U-shaped piece (16).

5. The mine ventilation air velocity measuring device of claim 1, wherein, The rack (1) is installed with a mounting plate (17).

6. The mine ventilation air velocity measuring device of claim 1, wherein, The connecting rod (4) is rotatably installed with a plurality of universal beads one (18), the universal beads one (18) abut against the rack (1).

7. The mine ventilation air velocity measuring device of claim 1, wherein, The rotating frame (8) is rotatably installed with a plurality of universal beads two (19), the universal beads two (19) abut against the connecting frame (5).

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