Anti-collision limiting device of mining heading machine
By designing an anti-collision limit device on the mining tunneling machine and utilizing the coordination of the travel switch and the transmission rod, the problem of the transfer machine damaging the equipment when retreating was solved, thereby improving safety and efficiency.
Patent Information
- Application Number
- CN202423059441.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-12-12
AI Technical Summary
In underground coal mines, the transfer machine of the tunnel boring machine can easily hit the dust removal fan or squeeze the cable when retreating, causing equipment damage and safety hazards. It also requires special supervision and wastes human resources.
A collision prevention and limit device for a mining tunneling machine was designed. A travel switch and a transmission rod were set on the dust removal blower housing. When the tunneling machine retreated to the parking position, the transmission rod contacted the travel switch and sent a signal to the controller to stop the tunneling machine from retreating.
It can effectively prevent the occurrence of accidents in which the transfer machine crashes into the equipment, ensure the safety of the working face, liberate labor and improve the excavation efficiency.
Smart Images
Figure CN223359103U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of underground safety, in particular to an anti-collision limiting device for a mining tunneling machine. Background Art
[0002] Currently, the dust removal fan and cable trolley for the tunnel boring machine (TMM) in underground coal mines are fixed to the outermost I-beam at the rear end of the belt conveyor. Simultaneously, the secondary operating carrier of the MMM also travels on the I-beams at both ends of the belt conveyor's tail-bearing section. To prevent the MMM from reversing and colliding with the dust removal fan, a dedicated person must be stationed at the rear of the MMM during operation. This device allows the driver to accurately and promptly determine the stopping location, preventing the TBM from being unable to stop in time in a blind spot during reverse, potentially leading to equipment damage, cable extraction, or crushing.
[0003] Due to the low visibility underground and the loud noise on the working face, the crew drivers often collide with the dust removal fan or squeeze the cable because they cannot hear the calls of the caregivers or fail to respond in time. In the worst case, the switch frame will be damaged. In the worst case, the switch will fall over and cause damage to the switch or the cable will be pulled out, resulting in grounding or short circuit accidents that seriously affect production safety and the improvement of excavation efficiency. Such care is not ideal and wastes human resources. Utility Model Content
[0004] The utility model aims to solve the above-mentioned problem, thereby providing an anti-collision limit device for a mining roadheader that can accurately know the parking position.
[0005] The utility model solves the above problems by adopting the following technical solutions:
[0006] A collision prevention and limiting device for a mining tunneling machine is provided. A travel switch for controlling the movement of a loader is provided on the dust removal fan housing. A transmission rod is hingedly connected to the middle portion of a driving rod on the travel switch. A limiting sleeve is provided on the dust removal fan housing and located on the outer periphery of the middle portion of the transmission rod. The outer end of the transmission rod is opposite to the tail of the transfer machine.
[0007] Compared with the prior art, the present invention adopting the above technical solution has the following outstanding features:
[0008] When the transfer machine retreats to the parking position, the tail of the transfer machine contacts the transmission rod and squeezes it to drive the travel switch to send a signal to the controller. The controller stops the transfer machine from retreating. The use of this device can effectively prevent the transfer machine from crashing into equipment and ensure the safety of the working face. At the same time, there is no need to send special personnel to watch over it, which liberates labor and further improves the excavation efficiency.
[0009] As a preferred embodiment, a further technical solution of the present invention is:
[0010] Furthermore, an audible and visual alarm connected to a travel switch is provided on the dust removal blower housing.
[0011] Furthermore, a limit plate is provided at the outer end of the transmission rod. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic diagram of the main structure of an embodiment of the utility model;
[0013] The components marked in the figure are: dust removal fan housing 1, travel switch 2, drive rod 21, transmission rod 3, limit sleeve 4, transfer machine tail 5, sound and light alarm 6, and limit plate 7. DETAILED DESCRIPTION
[0014] The present invention will be further described below in conjunction with embodiments, the purpose of which is only to provide a better understanding of the content of the present invention. Therefore, the examples given do not limit the scope of protection of the present invention.
[0015] A collision prevention and limit device for a mining tunneling machine is provided. A limit switch 2 for controlling the movement of a loader is provided on a dust removal fan housing 1. A transmission rod 3 is hinged in the middle of a driving rod 21 on the limit switch 2. A limit sleeve 4 is provided on the dust removal fan housing 1 and located on the outer periphery of the middle of the transmission rod 3. The outer end of the transmission rod 3 is opposite to the tail 5 of the transfer machine. The driving rod 21 on the limit switch 2 is initially in a vertical state, and the transmission rod 3 is initially in a horizontal state. The inner diameter of the limit sleeve 4 is larger than the diameter of the transmission rod 3.
[0016] Furthermore, the dust removal fan housing 1 is provided with an audible and visual alarm 6 connected to the travel switch 2. When the transfer machine stops moving, the audible and visual alarm 6 emits light and sound alarm signals to remind the crew driver.
[0017] Furthermore, a limit plate 7 is provided at the outer end of the transmission rod 3, which abuts on the transfer machine tail 5 before the transmission rod 3. The size of the limit plate 7 is larger than the inner diameter of the limit sleeve 4, and the limit plate 7 prevents the transmission rod 3 from escaping from the limit sleeve 4.
[0018] When the transfer machine retreats to the parking position, the tail 5 of the transfer machine contacts the transmission rod 3 and squeezes to drive the travel switch 2 to send a signal to the controller, and the controller stops the transfer machine from retreating. The use of this device can effectively prevent the transfer machine from crashing into equipment and ensure the safety of the working face. At the same time, there is no need to send special personnel to watch over it, which liberates labor and further improves the excavation efficiency.
[0019] The above description is only a preferred embodiment of the present invention and does not limit the scope of the present invention. Any equivalent changes made using the contents of the present invention specification and its drawings are included in the scope of the present invention.
Claims
1. A mining tunnel boring machine anti-collision limiter device, characterized by: A travel switch for controlling the movement of the loader is provided on the dust removal fan housing. A transmission rod is hinged in the middle of the driving rod on the travel switch. A limit sleeve is provided on the dust removal fan housing and located on the outer periphery of the middle of the transmission rod. The outer end of the transmission rod is opposite to the tail of the loader.
2. The anti-collision limit device for a mining tunnel boring machine according to claim 1, characterized in that: An audible and visual alarm connected to a travel switch is provided on the dust removal fan housing.
3. The anti-collision limit device for a mining roadheader according to claim 1, characterized in that: The outer end of the transmission rod is provided with a limit plate.