Mining deviation sensor structure

Abstract

The utility model discloses a mining deviation sensor structure, which relates to the technical field of sensor equipment and comprises a sensor frame, a microswitch is arranged in the sensor frame, a feeler lever is arranged on an outer frame, the feeler lever is connected with a ball head and a pin shaft, the pin shaft acts on a contact of the microswitch, a manual reset structure is arranged on the side of a normally open contact, and an LED lamp and a buffer spring are further arranged on the frame. The elastic cover protects the reset ejector rod. When the traction steel wire rope deviates and falls to touch the feeler lever, the ball head rotates, the plane of the ball head turns to push the pin shaft to act to enable the microswitch to be switched, the LED lamp is turned on to give an alarm, and the traction steel wire rope deviates and falls to touch the feeler lever to trigger the microswitch and cross the feeler lever, the microswitch cannot automatically reset, and resetting can be achieved only by manually starting the manual resetting structure. The problems of equipment failure and personal safety possibly caused by automatic resetting after the traction steel wire rope of the overhead man-riding device deviates and falls off are solved, resetting accuracy can be ensured by adopting a manual resetting mode, and safe and reliable operation and stability of the overhead man-riding device are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sensor equipment technical field, concretely relates to a mine deviation sensor structure. BACKGROUND

[0002] The aerial passenger conveyer is the main equipment for conveying personnel in the coal mine. In order to monitor the deviation and falling of the traction steel wire rope of the aerial passenger conveyer, a deviation sensor is usually installed at a proper position of the aerial passenger conveyer. When the traction steel wire rope of the aerial passenger conveyer deviates and falls, the traction steel wire rope will push the probe rod of the deviation sensor, and the deviation abnormal signal is transmitted to the controller through the micro switch from the normally closed switch to the normally open contact, so that the controller controls the stop of the conveying belt, thereby realizing the deviation protection. When the conveying belt does not deviate, the internal reset (commonly a reset spring) is restored to the normally closed switch, and the feedback is transmitted to the controller, so that the controller controls the automatic recovery of the conveying belt.

[0003] However, in actual situation, when the traction steel wire rope of the aerial passenger conveyer deviates and falls, the traction steel wire rope is usually dropped to the ground due to the relaxation, the internal automatic reset is restored due to the unforced probe rod, the deviation signal is not received by the deviation sensor, and the conveying problem occurs due to the continuous work. If the traction steel wire rope is separated or falls to the ground after falling, the swing rod cannot be continuously squeezed, and if the automatic reset switch is used, the automatic reset fault occurs, the traction steel wire rope is not reset to the normal state, and the switch signal is reset, so that the manual reset is required to solve the false alarm problem. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the above problems, the utility model provides a mine deviation sensor structure, which comprises a sensor frame, a micro switch is installed in the sensor frame, the micro switch comprises normally open contacts and normally closed contacts on the left and right sides, and a spring is arranged between the normally open contacts and the normally closed contacts; an outer frame is fixed to the outer wall of the sensor frame, a probe rod is arranged on one side of the outer frame, an activity cavity is horizontally and longitudinally arranged in the outer frame, a ball head capable of swinging up and down is arranged in the activity cavity, one end of the probe rod is welded to the ball head, a pin shaft is arranged at the end of the ball head away from the probe rod, and the other end of the pin shaft extends between the normally open contacts and the normally closed contacts; a manual reset structure is arranged on the side of the normally open contact away from the spring, and the manual reset structure comprises a reset top rod, the reset top rod is slidably connected to the sensor frame, and one end of the reset top rod can extend out of the sensor frame.

[0005] Further, an LED lamp is also installed on the sensor frame, the LED lamp is bright when the spring contacts the normally open contact, and the LED lamp is off when the spring contacts the normally closed contact.

[0006] Further, a buffer spring is arranged between the outer wall of the sensor frame and the ball head, and the buffer spring is sleeved on the pin shaft.

[0007] Further, an elastic cover is arranged on the outside of the reset top rod of the sensor frame, and the elastic cover is a silica gel cover.

[0008] Further, the distance between the normally open contact and the normally closed contact of the micro switch is 4mm.

[0009] The utility model has the beneficial effects as follows:

[0010] 1. Through the cooperation of the ball head, the pin shaft and the micro switch, and the setting of the manual reset structure, the deviation of the conveying belt can be accurately perceived, and the signal can be accurately fed back to the controller and the worker. Compared with the traditional deviation sensor, the signal misjudgment problem caused by the falling of the traction wire rope or the distortion of the reset lever is avoided, the signal received by the controller truly reflects the running state of the traction wire rope, so that the operator can take effective corrective measures in time, the normal operation of the overhead passenger device is ensured, the risk of personal accidents and equipment damage is avoided, the efficiency and quality of personnel transportation are improved, and the economic loss caused by personal accidents and equipment failure is reduced.

[0011] 2. The manual reset mode is adopted, and the safety hidden danger caused by the automatic reset is avoided. After the deviation and falling of the traction wire rope, only the on-site inspection and confirmation of the worker and the manual operation of the reset top rod can make the sensor return to the normal working state, so that the safety and stability of the equipment operation are greatly improved.

[0012] 3. The setting of the LED lamp provides an intuitive indication of the running state of the traction wire rope for the worker. Through the lightening and extinguishing of the lamp, the worker can quickly and clearly understand whether the traction wire rope is in the deviation state from a distance, without needing to approach the sensor for complex inspection and judgment, so that the work efficiency and convenience are improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is an internal structure schematic view of the utility model;

[0014] Figure 2 It is a top view structure schematic view of the utility model.

[0015] The reference signs are explained as follows: 1, sensor frame; 201, normally open contact; 202, normally closed contact; 3, elastic sheet; 4, outer frame; 5, probe rod; 6, ball head; 7, pin shaft; 8, manual reset structure; 801, reset top rod; 802, elastic cover; 9, buffer spring. DETAILED DESCRIPTION

[0016] In the description of the utility model, it needs to explain, the term "center", "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" and so on indicate the orientation or position relation based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the device or element must have a particular orientation, construct and operate in a particular orientation, therefore, it cannot be understood as the limitation of the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying the importance of the opposite.

[0017] In the description of the utility model, it needs to explain, unless otherwise specified and limited, the terms "installation", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be mechanical connection, or electrical connection, it can be directly connected, or indirectly connected through intermediate medium, it can be the communication inside two elements. 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.

[0018] The utility model will be further described below in conjunction with the drawings of the specification:

[0019] A mine deviation sensor structure, as shown in Figure 1 And Figure 2 Sensor frame 1 is used as the main support structure of the whole sensor, and microswitch is installed inside, the normally open contact 201 and the normally closed contact 202 of the microswitch are separated on the left and right sides, and the middle is provided with a spring sheet 3, which is used for realizing the on-off switching of the circuit to transmit the deviation and falling signal. The outer wall of the sensor frame 1 is fixed with an outer frame 4, one side of the outer frame 4 is provided with a feeler rod 5, and the feeler rod 5 is used for contacting the traction steel wire rope and sensing the deviation and falling condition.

[0020] As shown in Figure 1 The outer frame 4 is provided with a movable cavity transversely, the movable cavity is provided with a ball head 6 that can swing up and down, one end of the feeler rod 5 is welded with the ball head 6, forming a linkage structure. When the traction steel wire rope deviates and falls and touches the feeler rod 5, the stress change of the feeler rod 5 will be transmitted to the ball head 6, so that the ball head 6 generates corresponding swing action. The end of the ball head 6 away from the feeler rod 5 abuts against a pin shaft 7, and the other end of the pin shaft 7 extends between the normally open contact 201 and the normally closed contact 202, as a key component for triggering the action of the spring sheet 3.

[0021] As shown in Figure 1As shown, the normally open contact 201 is provided with a manual reset structure 8 away from one side of the elastic sheet 3, the manual reset structure 8 includes a reset top rod 801, the reset top rod 801 is slidably connected with the sensor frame 1 and one end thereof can extend out of the sensor frame 1, facilitating manual operation of the operator. The sensor frame 1 is provided with an elastic cover 802 outside the reset top rod 801, the elastic cover 802 is made of silica gel material, which can not only protect the reset top rod 801, but also provide moderate tactile feedback for manual reset operation to a certain extent.

[0022] As shown in the drawings, Figure 1 A buffer spring 9 is arranged between the outer wall of the sensor frame 1 and the ball head 6, the buffer spring 9 is sleeved on the pin shaft 7, which plays a buffering role in the swinging process of the ball head 6, reduces the impact force on the internal components of the sensor due to the sudden collision of the traction wire rope with the probe rod 5, and helps the ball head 6 to reach stable balance more quickly under the new stress state, thereby improving the response speed and stability of the sensor.

[0023] In the embodiment, an LED lamp is also installed on the sensor frame 1, and is electrically connected with the micro switch, when the elastic sheet 3 contacts the normally open contact 201, the LED lamp is on, directly indicating to the operator that the traction wire rope is in the off-track falling state; when the elastic sheet 3 contacts the normally closed contact 202, the LED lamp is off, indicating that the traction wire rope is running normally. This visual indication method facilitates the operator to timely understand the running condition of the traction wire rope, and facilitates timely discovery and handling of the off-track falling problem.

[0024] The working principle of the utility model is as follows:

[0025] When the traction wire rope of the aerial passenger device appears off-track falling phenomenon and touches the downward probe rod 5, the probe rod 5 is stressed to drive the ball head 6 welded therewith to swing up and down in the movable cavity. Due to the swinging of the ball head 6, one end thereof is raised upward, at this time, the sensor outer frame 4, the ball head 6 and the pin shaft 7 form a lever mechanism, the ball head 6 raises to squeeze the pin shaft 7 to the left and make it tilt. In this process, the pin shaft 7 will overcome certain resistance, including the rotating resistance of the ball head 6 and the elastic force of the buffer spring 9, when reaching the dead point position, the right pushing force of the buffer spring 9 and the rotating resistance of the ball head 6 reach balance, and the pin shaft 7 forms stable balance and is stationary in the new state.

[0026] The other end of the pin shaft 7 will push the elastic sheet 3 to move from the normally closed contact 202 to the normally open contact 201 in the tilting process, at this time, the circuit is connected, the LED lamp is on, and the off-track signal is sent to the operator, and the off-track abnormal signal is transmitted to the controller (the signal transmission principle of this part is similar to that of the traditional off-track sensor, which is realized through electrical signal connection).

[0027] When the worker adjusts the deviated traction steel wire rope to restore its normal position, the manual reset mode of the sensor requires the operator to manually push the reset top rod 801. The reset top rod 801 slides in the sensor frame 1, one end of which extends and pushes the pin shaft 7, so that the pin shaft 7 overcomes the resistance of the ball head 6, thereby driving the spring sheet 3 to reset to the normally closed contact 202. At this time, the LED lamp is extinguished, the circuit returns to the initial state, the sensor completes a work cycle of deviation monitoring and reset, and accurately reflects the actual running state of the traction steel wire rope, avoids the signal distortion problem caused by automatic reset, and ensures the safe and stable operation of the aerial passenger device.

[0028] The basic principle, main features and advantages of the utility model are shown and described above. The skilled in the art should understand that the utility model is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model.

Claims

1. A structure for a mine deviation sensor, comprising a sensor frame (1), wherein a micro switch is installed within the sensor frame (1), the micro switch comprising normally open contacts (201) and normally closed contacts (202) on the left and right sides respectively, and a spring contact (3) is provided between the normally open contacts (201) and the normally closed contacts (202); characterized in that: The outer wall of the sensor frame (1) is fixed with an outer frame (4). A probe (5) is provided on one side of the outer frame (4). The outer frame (4) has a movable cavity that runs through it laterally. A ball head (6) that can swing up and down is provided in the movable cavity. One end of the probe (5) is welded to the ball head (6). The end of the ball head (6) away from the probe (5) is abutted against a pin (7). The other end of the pin (7) extends between the normally open contact (201) and the normally closed contact (202). A manual reset structure (8) is provided on the side of the normally open contact (201) away from the spring (3). The manual reset structure (8) includes a reset rod (801). The reset rod (801) is slidably connected to the sensor frame (1) and one end of the reset rod (801) can extend out of the sensor frame (1).

2. The structure of a mine deviation sensor according to claim 1, characterized in that: The sensor frame (1) is also equipped with an LED light. When the spring (3) contacts the normally open contact (201), the LED light is lit, and when the spring (3) contacts the normally closed contact (202), the LED light is turned off.

3. The structure of a mine deviation sensor according to claim 1, characterized in that: A buffer spring (9) is provided between the outer wall of the sensor frame (1) and the ball head (6), and the buffer spring (9) is sleeved on the outside of the pin (7).

4. The structure of a mine deviation sensor according to claim 1, characterized in that: The sensor frame (1) has an elastic cover (802) installed on the outside of the reset top rod (801), and the elastic cover (802) is a silicone cover.

5. The structure of a mine deviation sensor according to claim 1, characterized in that: The distance between the normally open contact (201) and normally closed contact (202) of the micro switch is 4 mm.

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