A mine monkey car steel wire rope anti-slip protection system

Abstract

The utility model discloses a kind of anti-skid protection systems of mine monkey car steel wire rope, comprising: driving wheel, anti-skid wheel, set close to driving wheel, anti-skid wheel is used to resist on driving wheel, and then rotate under the driving of driving wheel;First rotation speed sensor, install on anti-skid wheel, support fixed slip pulley, second rotation speed sensor, install on support fixed slip pulley, processing module, for receiving the rotation speed of first rotation speed sensor and second rotation speed sensor, and when the difference between the rotation speed of second rotation speed sensor and the rotation speed of first rotation speed sensor is greater than predetermined value, alarm signal is sent, and then prompt personnel steel wire rope skidding;The utility model can compare the difference between two rotation speed sensors by setting two rotation speed sensors, and when the difference exceeds predetermined value, alarm can be carried out, the situation that steel wire rope skidding can be quickly identified, the shutdown caused by false alarm of equipment is prevented, and the maintenance frequency is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of mining monkey car peripherals, and in particular relates to an anti-slip protection system for the wire rope of mining monkey cars. Background Technology

[0002] "Monkey car" is a common name for an aerial passenger transport device, a new type of personnel transport equipment in inclined or horizontal mine tunnels, belonging to the category of endless rope transport.

[0003] The steel cable of the scooter is prone to slipping, primarily because the friction between the cable and the drive wheel is insufficient, preventing the transmission of adequate traction. The specific reasons are as follows: 1. Poor contact surface condition, wear, oil stains or rust in the drive wheel rope groove, and debris on the wire rope surface will all reduce the coefficient of friction.

[0004] 2. Insufficient tension: The wire rope is not tensioned enough during installation, or the elongation or tensioning device fails after long-term use, resulting in insufficient bonding pressure.

[0005] 3. Abnormal load, overload operation causes the required traction force to exceed the friction limit, or uneven distribution of passengers leads to excessive local stress.

[0006] 4. Environmental impacts: Humid and icy weather conditions can directly reduce the friction performance between the wire rope and the drive wheel.

[0007] 5. Equipment malfunction, such as misaligned drive wheel installation, damaged bearings, or broken or severely worn wire ropes, can affect the bonding effect. Utility Model Content

[0008] The purpose of this invention is to provide an anti-slip protection system for the wire rope of a mining hoist, in order to solve the problem of not being able to detect hoist slippage in a timely manner.

[0009] This utility model adopts the following technical solution: an anti-slip protection system for steel wire ropes used in mining monkey carts, comprising: The drive wheel is used to use friction to pull the steel wire rope along the track, thereby driving the chair suspended on the steel wire rope to move synchronously and achieve the purpose of transporting people. The anti-slip wheel is located close to the drive wheel and is fixed to the fixed base of the drive wheel by an anti-slip bracket; the axis of the anti-slip wheel is parallel to the axis of the drive wheel; the anti-slip wheel is used to abut against the drive wheel and thus rotate under the drive of the drive wheel. The first speed sensor is installed on the anti-slip wheel and is used to detect the speed of the anti-slip wheel; A support pulley is installed at a position away from the drive wheel, and its pulley surface is used to support and guide the wire rope from the drive wheel. The second speed sensor is installed on the support pulley and is used to detect the travel speed of the wire rope passing through the support pulley. The processing module is used to receive the rotational speeds from the first and second rotational speed sensors, and to send an alarm signal when the difference between the rotational speed of the second and first rotational speed sensors is greater than a predetermined value, thereby alerting personnel that the wire rope has slipped.

[0010] The beneficial effects of this utility model are: This invention, by setting two speed sensors, can quickly identify wire rope slippage by comparing the difference between the two speed sensors and triggering an alarm when the difference exceeds a predetermined value. This eliminates false alarms that could cause downtime and reduces the number of maintenance operations. By incorporating a restraining spring, this invention ensures that the anti-slip wheel remains pressed against the drive wheel, thereby guaranteeing synchronous rotation of the anti-slip wheel and the drive wheel, and consequently ensuring the accuracy of the rotational speed detected by the first speed sensor. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the drive wheel of this utility model; Figure 2 This is a schematic diagram of the structure of the fixed pulley supporting this utility model.

[0012] The components are: 10. Drive wheel; 11. Anti-slip wheel; 12. Supporting fixed pulley; 13. Restriction spring; 14. Anti-slip bracket; 15. Fixed base; 16. Steel wire rope. Detailed Implementation

[0013] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0014] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "multiple" means two or more. The term "orientation" in this utility model refers to the orientation of the utility model within the... Figure 1Description of the state's progression.

[0015] This utility model discloses an anti-slip protection system for the wire rope of a mining hoist, such as... Figure 1 and Figure 2 As shown, it includes: a drive wheel 10, an anti-slip wheel 11, a first speed sensor, a supporting fixed pulley 12, a second speed sensor, and a processing module.

[0016] The drive wheel 10 is used to pull the wire rope 16 along the track by friction, thereby driving the chair suspended on the wire rope 16 to move synchronously and achieve the purpose of transporting personnel.

[0017] The anti-slip wheel 11 is positioned close to the drive wheel 10 and is fixed to the fixed base 15 of the drive wheel 10 by the anti-slip bracket 14. The axis of the anti-slip wheel 11 is parallel to the axis of the drive wheel 10. The anti-slip wheel 11 is used to abut against the drive wheel 10 and rotate under the drive of the drive wheel 10.

[0018] The first speed sensor is installed on the anti-slip wheel 11 and is used to detect the speed of the anti-slip wheel 11. The support pulley 12 is installed at a position away from the drive wheel 10. The pulley surface of the support pulley 12 is used to support the wire rope 16 from the drive wheel 10 and guide the wire rope 16.

[0019] The second speed sensor is installed on the support pulley 12 and is used to detect the travel speed of the wire rope 16 passing through the support pulley 12.

[0020] The processing module is used to receive the rotation speeds of the first speed sensor and the second speed sensor, and when the difference between the rotation speed of the second speed sensor and the rotation speed of the first speed sensor is greater than a predetermined value, it sends an alarm signal to prompt the personnel that the wire rope 16 has slipped.

[0021] The preferred setting for the predetermined value is 10% of that of the first speed sensor.

[0022] The present invention also includes: a restraining spring 13, one end of which is fixed to the fixed base 15 of the drive wheel 10, and the other end of which is fixedly connected to the lower end of the anti-slip wheel 11. The restraining spring 13 is used to tighten the anti-slip wheel 11, so that the anti-slip wheel 11 always presses against the drive wheel 10, thereby ensuring that the anti-slip wheel 11 and the drive wheel 10 rotate synchronously.

[0023] The location of the restraining spring 13 should be carefully selected. Preferably, the direction of the restraining spring 13 is at an acute angle to the direction of the thrust force from the drive wheel 10 to the anti-slip wheel 11. This ensures that the drive wheel 10 can hold the anti-slip wheel 11 and that the anti-slip wheel 11 is always pressed against the drive wheel 10, thereby ensuring the rotational speed of the anti-slip wheel 11 and thus ensuring the accuracy of the rotational speed of the first speed sensor.

[0024] Preferably, the mounting height of the supporting pulley 12 is higher than the mounting height of the drive wheel 10. Example

[0025] The mine frequently experiences wire rope slippage, and it is impossible for humans to quickly determine when wire rope 16 is slipping. According to statistics, in 2024, this problem caused an average of 12 shutdowns per month, with each maintenance taking 15 minutes, which seriously affected transportation efficiency.

[0026] Therefore, to install this utility model, first install the first speed sensor and the second speed sensor, and then add the restraining spring 13. The direction of the restraining spring 13 is at 45° to the direction of the thrust of the anti-slip wheel 11 by the drive wheel 10. Through the principle of triangular mechanical structure, a two-way tension balance system is formed to ensure that there will be no poor contact between the anti-slip wheel 11 and the drive wheel 10, and to ensure the normal operation of the monkey car.

[0027] After this utility model is installed, an alarm signal will be received immediately once the wire rope 16 slips, and the restraining spring 13 can ensure that the anti-slip wheel 11 and the drive wheel 10 are always in contact, thereby ensuring the detection accuracy of the first speed sensor.

[0028] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A slip protection system for steel wire ropes used in mining maneuvers, characterized in that, include: The drive wheel (10) is used to use friction to pull the wire rope (16) along the track, thereby driving the chair suspended on the wire rope (16) to move synchronously and achieve the purpose of transporting personnel. An anti-slip wheel (11) is positioned close to the drive wheel (10) and fixed to the fixed base (15) of the drive wheel (10) by an anti-slip bracket (14); the axis of the anti-slip wheel (11) is parallel to the axis of the drive wheel (10); the anti-slip wheel (11) is used to abut against the drive wheel (10) and then rotate under the drive of the drive wheel (10); A first speed sensor is installed on the anti-slip wheel (11) to detect the speed of the anti-slip wheel (11); A support pulley (12) is installed at a position away from the drive wheel (10), and its pulley surface is used to support the wire rope (16) from the drive wheel (10) and guide the wire rope (16); The second speed sensor is installed on the support pulley (12) and is used to detect the travel speed of the wire rope (16) passing through the support pulley (12); The processing module is used to receive the rotation speeds of the first speed sensor and the second speed sensor, and send an alarm signal when the difference between the rotation speed of the second speed sensor and the rotation speed of the first speed sensor is greater than a predetermined value, thereby prompting the personnel that the wire rope (16) has slipped.

2. The anti-slip protection system for a mining hoist wire rope according to claim 1, characterized in that, Also includes: The restraining spring (13) has one end fixed to the fixed base (15) of the drive wheel (10) and the other end fixedly connected to the lower end of the anti-slip wheel (11). It is used to tighten the anti-slip wheel (11) so that the anti-slip wheel (11) always presses against the drive wheel (10), thereby ensuring that the anti-slip wheel (11) and the drive wheel (10) rotate synchronously.

3. The anti-slip protection system for a mining hoist wire rope according to claim 1, characterized in that, The installation height of the supporting fixed pulley (12) is higher than the installation height of the drive wheel (10).

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