Mining inclined drift improved sliding-down protection device
By designing a mining inclined lane including a guardrail body, lifting device and energy absorber, the problem of mining car accidents and guardrail lifting devices occupying space in coal mine inclined lanes is solved, and a higher throughput height, lower motor load and longer service life is achieved.
Patent Information
- Application Number
- CN202422062506.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-23
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-08-23
AI Technical Summary
In the inclined lanes of coal mines, mine cars are prone to sports car accidents due to loss of traction during transportation, resulting in a large impact force. The existing guardrail lifting device occupies space, limits the passing height of the mine truck, and has a heavier motor load and short service life.
A mining inclined lane improved sports car protection device is designed, including a guardrail main body, lifting device and energy absorber. The main body of the guardrail is connected to the boom through a U-shaped anchor and a lifting ring. The retracting and releasing winch and lifting wire rope are used to achieve oblique lifting of the guardrail to reduce the motor load. The energy absorber provides primary and primary cushioning through a buffered wire rope and a damping rod, firmly absorbing impact energy.
The top space of the inclined lane is effectively utilized, the passage height of the mine truck is increased, the motor load is reduced, the motor service life is extended, and the frequency of replacement of wheels and plum mats is reduced, improving the safety and efficiency of mine truck transportation.
Smart Images
Figure CN222905544U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mine car protection, in particular to an improved anti - runaway protection device for inclined mine roadways in mines. Background Technique
[0002] In current coal mine production, mine cars are towed by steel wire ropes and reciprocally transport coal and material equipment in the inclined mine roadways of coal mines to transport the coal and material equipment deep underground to the surface. During the transportation process, the steel wire ropes towing the mine cars may separate from the mine cars. And in the inclined mine roadways, under the action of gravity, after the mine cars lose the traction of the steel wire ropes, mine car runaway accidents will occur, with extremely large impact force. Therefore, it is necessary to arrange a guardrail structure in the inclined mine roadways to intercept the runaway phenomenon to avoid safety accidents.
[0003] The current intercepting guardrail is always suspended above the mine car traveling track to avoid being too late to react in case of emergencies. When the mine car is traveling normally, the guardrail needs to be lifted to allow the mine car to pass normally. The current control method for the lifting action of the guardrail is to keep the guardrail in a vertical state and pull the guardrail to move up and down in the vertical direction by a winch. The winch needs to bear the entire weight of the guardrail, and the load on the winch motor is relatively heavy. Moreover, the lifted guardrail is still in a vertical state, which will occupy the space above the inclined mine roadway and limit the actual passing height of the mine car. Content of the Utility Model
[0004] The purpose of the utility model is to provide an improved anti - runaway protection device for inclined mine roadways in mines to solve the problems raised in the above - mentioned background technique.
[0005] To achieve the above purpose, the utility model provides the following technical solutions:
[0006] An improved anti - runaway protection device for inclined mine roadways in mines includes a guardrail main body. The lower end of the guardrail main body is fixedly connected to a lifting device, and both sides of the guardrail main body are fixedly connected to energy absorbers. The guardrail main body includes a No. 1 I - beam. At both ends of the bottom side of the No. 1 I - beam, U - shaped anchors are relatively fixedly installed through nuts. The lower ends of the U - shaped anchors are movably sleeved with suspension rings, and the suspension rings are fixedly installed at the upper ends of suspension rods. The lifting device includes No. 2 I - beams. The number of No. 2 I - beams is two. In the middle of the upper surfaces of the two No. 2 I - beams, a winch for winding and unwinding is fixedly installed. A No. 1 lifting steel wire rope is fixedly connected to the middle of the winding roller of the winch for winding and unwinding. One end of the No. 1 lifting steel wire rope is relatively fixedly connected to the rear end of a hook - releasing device. At both ends of the front side of the hook - releasing device, No. 2 lifting steel wire ropes are relatively fixedly connected. One end of each of the two No. 2 lifting steel wire ropes is fixedly connected to the lower ends of the two suspension rods.
[0007] Furthermore, four threaded steel bars are fixedly installed at equal distances on the front side of the lower half sections of the two suspension rods, and buffer steel wire ropes are fixedly connected to both ends of the four threaded steel bars.
[0008] Furthermore, a pulley is slidably sleeved on the bottom side of the second lifting steel wire rope.
[0009] Furthermore, there are two sets of the energy absorber. The energy absorber includes a winding shaft. Side plates are rotatably connected to both sides of the winding shaft. A winding spring that is snap-connected to both ends of the winding shaft is buried and installed inside the side plates.
[0010] Furthermore, the front sides of the two side plates are fixedly connected to both sides of the back plate. One ends of damping rods are fixedly connected to both sides of the front surface of the back plate. The other ends of the damping rods are fixedly connected to a vertical plate. The lower edge of the vertical plate is fixedly connected to a base plate. A buried seat is fixedly installed on the bottom side of the base plate.
[0011] Furthermore, limiting slide bars are fixedly installed on both the upper and lower sides of the side plates. Auxiliary rail rods are fixedly installed at both ends of the upper edge of the vertical plate. Limiting sliding grooves for slidably snap-connecting with the limiting slide bars are formed on both sides of the upper surface of the base plate and at the bottom sides of the two auxiliary rail rods.
[0012] Furthermore, one ends of the buffer steel wire ropes connected to both ends of the four threaded steel bars are respectively fixedly connected to the two winding shafts.
[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0014] 1. Prepare three sets of overall structures. Fix the first I-beam and the second I-beam on the top of the coal mine inclined roadway at equal intervals through anchor members to achieve one slope with three blocking devices. When the mine car normally passes through the inclined roadway, the first lifting steel wire rope is wound by the winch, and then the two second lifting steel wire ropes are pulled through the unhooking device, and then the lower ends of the two suspension rods are pulled, so that the lower half of the guardrail main body rises obliquely in a rotating posture with the socket joints of the suspension rings and U-shaped anchor members as the rotation points, enabling the mine car to normally pass through the inclined roadway passage. Compared with the control method of vertically lifting the guardrail main body by the traditional lifting action control structure, the space at the top of the roadway is effectively utilized, the actual available passage height of the roadway is increased compared with the vertical lifting car stop, and at the same time, part of the weight of the guardrail main body is shared by the U-shaped anchor members and the suspension rings, reducing the load of the winch motor, increasing the service life of the motor, and reducing the replacement frequency of the countershaft and the plum blossom pad.
[0015] 2. A spiral spring provides rotational power to the winding shaft to wind one end of each buffer steel wire rope, keeping each buffer steel wire rope in a taut state at all times. When the mine car gets out of control and runs away, the runaway mine car directly impacts the guardrail main body and pulls each buffer steel wire rope. First, the spiral spring is pulled to the limit to provide primary buffering, and then the side plate pushes the back plate to slide forward, squeezing each damping rod to provide the main buffering. At the same time, the buried seat is deeply buried in the roadway floor to ensure the overall stability of the energy absorber, avoiding excessive pulling force that may cause the entire energy absorber to fly off. Meanwhile, the hook-shaped structure formed by the vertical plate and the base plate tightly abuts against the damping rod, using the interaction force to ensure the sufficient stability of the energy absorption components. Description of the Drawings
[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model;
[0017] Figure 2 is a schematic diagram of the guardrail main body in the present utility model;
[0018] Figure 3 is a schematic diagram of the lifting device in the present utility model;
[0019] Figure 4 is a schematic diagram of the energy absorber in the present utility model.
[0020] In the figure: 1. Guardrail main body; 101. No. 1 I-beam; 102. U-shaped anchor; 103. Hoisting ring; 104. Suspension rod; 105. Ribbed steel bar; 106. Buffer steel wire rope; 2. Lifting device; 201. No. 2 I-beam; 202. Winch for winding and unwinding; 203. No. 1 lifting steel wire rope; 204. Hook release; 205. No. 2 lifting steel wire rope; 206. Pulley; 207. No. 3 I-beam; 3. Energy absorber; 301. Winding shaft; 302. Side plate; 303. Spiral spring; 304. Limit slide bar; 305. Back plate; 306. Damping rod; 307. Vertical plate; 308. Base plate; 309. Auxiliary rail rod; 310. Limit sliding groove; 311. Buried seat. Detailed Embodiment
[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0022] Please refer to Figures 1 to 4, in the embodiment of the utility model, an improved anti - runaway protection device for inclined mine roadway includes a guardrail main body 1. The lower end of the guardrail main body 1 is fixedly connected to a lifting device 2, and both sides of the guardrail main body 1 are fixedly connected to energy absorbers 3. The guardrail main body 1 includes a No. 1 I - beam 101. At both ends of the bottom side of the No. 1 I - beam 101, U - shaped anchors 102 are fixedly installed relatively by nuts. A lifting ring 103 is movably sleeved at the lower end of the U - shaped anchor 102, and the lifting ring 103 is fixedly installed at the upper end of a suspension rod 104. The lifting device 2 includes a No. 2 I - beam 201. The number of No. 2 I - beams 201 is two. In the middle of the upper surfaces of the two No. 2 I - beams 201, a winding and unwinding winch 202 is fixedly installed. In the middle of the winding roller of the winding and unwinding winch 202, a No. 1 lifting steel wire rope 203 is fixedly connected. One end of the No. 1 lifting steel wire rope 203 is fixedly connected relatively to the rear end of a decoupling device 204. At both ends of the front side of the decoupling device 204, No. 2 lifting steel wire ropes 205 are fixedly connected relatively. One end of the two No. 2 lifting steel wire ropes 205 is fixedly connected to the lower ends of the two suspension rods 104.
[0023] Specifically, prepare three sets of overall structures, and fix the No. 1 I - beam 101 and the No. 2 I - beam 201 on the top of the coal mine inclined roadway at equal intervals through anchors to achieve one slope with three blocks. When the mine car passes through the inclined roadway normally, the No. 1 lifting steel wire rope 203 is wound by the winding and unwinding winch 202, and then the two No. 2 lifting steel wire ropes 205 are pulled through the decoupling device 204, and further the lower ends of the two suspension rods 104 are pulled, so that the lower half of the guardrail main body 1 takes the socket joint of the lifting ring 103 and the U - shaped anchor 102 as the rotation point and rises obliquely in a rotating posture, enabling the mine car to pass through the inclined roadway passage normally. Compared with the control method of vertically lifting the guardrail main body 1 in the traditional lifting action control structure, it effectively utilizes the space at the top of the roadway, increases the actual available passage height of the roadway compared with the vertical lifting car - stopping railing, and at the same time, part of the weight of the guardrail main body 1 is shared by the U - shaped anchor 102 and the lifting ring 103, reducing the motor load of the winding and unwinding winch 202, increasing the service life of the motor, and reducing the replacement frequency of the coupling and the plum blossom pad.
[0024] Embodiment 1
[0025] As Figure 2 shown, in this embodiment, four threaded steel bars 105 are fixedly installed at equal intervals on the front side of the lower half of the two suspension rods 104, and buffer steel wire ropes 106 are fixedly connected to both ends of the four threaded steel bars 105.
[0026] In this embodiment, the guardrail main body is composed of the suspension rod 104 and the four threaded steel bars 105, and the flexible steel wire rope is replaced by the rigid suspension rod 104 to suspend the threaded steel bars 105, increasing the anti - impact energy.
[0027] As Figure 3 shown, in this embodiment, a pulley 206 is slidably sleeved on the bottom side of the No. 2 lifting steel wire rope 205.
[0028] During specific implementation, two groups of pulleys 206 are fixedly installed at both ends of the upper surface of the No. 3 I-beam 207. The No. 3 I-beam 207 is also fixedly installed at the top of the inclined roadway through anchor pieces. The pulleys 206 provide rotational support for the No. 2 lifting steel wire rope 205 and play the role of a fulcrum, further reducing the load on the hoisting winch 202 for raising the guardrail main body 1.
[0029] Embodiment 2
[0030] On the basis of Embodiment 1, in order to supplement the specific method for intercepting and protecting an out-of-control mine car with a running-away phenomenon by the overall structure not mentioned in Embodiment 1.
[0031] As Figure 1 、 4 shown, in this embodiment, the number of energy absorbers 3 is two groups. The energy absorber 3 includes a winding shaft 301. Both sides of the winding shaft 301 are rotatably connected with side plates 302. Inside the side plates 302, torsion springs 303 that are clamped with both ends of the winding shaft 301 are buried and installed; the front sides of the two side plates 302 are fixedly connected with both sides of a back plate 305. Both edges of the front surface of the back plate 305 are fixedly connected with one end of a damping rod 306. The other end of the damping rod 306 is fixedly connected with a vertical plate 307. The lower edge of the vertical plate 307 is fixedly connected with a base plate 308. A buried seat 311 is fixedly installed on the bottom side of the base plate 308; both the upper and lower sides of the side plates 302 are fixedly installed with limit slide bars 304. Both ends of the upper edge of the vertical plate 307 are fixedly installed with auxiliary rail rods 309. Limit sliding grooves 310 that are slidably clamped with the limit slide bars 304 are opened on both edges of the upper surface of the base plate 308 and on the bottom sides of the two auxiliary rail rods 309; One end of each buffer steel wire rope 106 connected to both ends of the four threaded steel bars 105 is fixedly connected with the two winding shafts 301 respectively.
[0032] During specific implementation, the torsion spring 303 provides rotational power for the winding shaft 301 to wind one end of each buffer steel wire rope 106, so that each buffer steel wire rope 106 is always in a taut state. When the mine car gets out of control and has a running-away phenomenon, the running-away mine car directly impacts the guardrail main body 1 and pulls each buffer steel wire rope 106. First, the torsion spring 303 is pulled to the limit to provide primary buffering. Then, the side plates 302 push the back plate 305 to slide forward, squeezing each damping rod 306 to provide the main buffering. At the same time, the buried seat 311 is deeply buried in the roadway ground to ensure the overall stability of the energy absorber 3, avoiding the overall flying of the energy absorber 3 due to excessive pulling force. At the same time, the hook-shaped structure formed by the vertical plate 307 and the base plate 308 tightly abuts against the damping rod 306, and using the interaction force, ensures the sufficient stability of the energy absorption components.
[0033] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.
[0034] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A device for improving the protection of sports cars in a mining inclined tunnel, comprising a guardrail body (1), characterized in that: The lower end of the guardrail body (1) is fixedly connected to the lifting device (2), and the two sides of the guardrail body (1) are fixedly connected to the energy absorber (3). The guardrail body (1) includes a No. 1 I-beam (101), and the two ends of the bottom side of the No. 1 I-beam (101) are relatively fixedly installed with U-shaped anchors (102) through nuts. The lower end of the U-shaped anchor (102) is movably sleeved with a lifting ring (103), and the lifting ring (103) is fixedly installed on the upper end of the suspension rod (104). The lifting device (2) includes a No. 2 I-beam (201), and the No. 2 There are two I-beams (201), and a retracting winch (202) is fixedly installed in the middle of the upper surface of the two No. 2 I-beams (201). A No. 1 lifting wire rope (203) is fixedly connected to the middle of the winding roller of the retracting winch (202). One end of the No. 1 lifting wire rope (203) is relatively fixedly connected to the rear end of the unhooking device (204), and the two ends of the front side of the unhooking device (204) are relatively fixedly connected to the No. 2 lifting wire rope (205), and one end of the two No. 2 lifting wire ropes (205) are fixedly connected to the lower ends of the two suspension rods (104).
2. The improved sports car protection device for mining inclined tunnels according to claim 1 is characterized in that: Four threaded steel bars (105) are fixedly installed at equal distances on the front sides of the lower halves of the two suspension rods (104), and buffer steel wire ropes (106) are fixedly connected to both ends of the four threaded steel bars (105).
3. The improved sports car protection device for inclined tunnels in mines according to claim 2 is characterized in that: The bottom side of the No. 2 lifting wire rope (205) is slidably sleeved with a pulley (206), and two sets of pulleys (206) are fixedly installed at both ends of the upper surface of the No. 3 I-beam (207).
4. The improved sports car protection device for inclined tunnels in mines according to claim 3 is characterized in that: The energy absorber (3) is provided in two groups, and comprises a winding shaft (301), and side plates (302) are rotatably connected to both sides of the winding shaft (301), and a coil spring (303) is embedded and installed inside the side plate (302) and is mutually clamped with both ends of the winding shaft (301).
5. The improved sports car protection device for mining inclined tunnels according to claim 4 is characterized in that: The front sides of the two side panels (302) are fixedly connected to the two sides of the back panel (305), the two side edges of the front surface of the back panel (305) are fixedly connected to one end of the damping rod (306), the other end of the damping rod (306) is fixedly connected to the vertical panel (307), the lower edge of the vertical panel (307) is fixedly connected to the base panel (308), and the bottom side of the base panel (308) is fixedly installed with a buried seat (311).
6. The improved sports car protection device for inclined tunnels in mines according to claim 5 is characterized in that: Limiting slide bars (304) are fixedly installed on both upper and lower sides of the side panels (302), auxiliary rails (309) are fixedly installed on both ends of the upper edge of the vertical panel (307), and limiting slide grooves (310) that are slidably engaged with the limiting slide bars (304) are provided on both side edges of the upper surface of the base panel (308) and the bottom sides of the two auxiliary rails (309).
7. The improved sports car protection device for mining inclined tunnels according to claim 6 is characterized in that: One end of the buffer steel wire rope (106) connected to both ends of the four threaded steel bars (105) is fixedly connected to the two winding shafts (301) respectively.