A kind of wind lane along empty roadway process supporting equipment

Abstract

The utility model provides a kind of wind lane along empty roadway leaving roadway process supporting equipment, including horizontal hydraulic support, the horizontal hydraulic support includes base and roof beam, the base is equipped with frame inter-pushing jack, the frame inter-pushing jack is extended outward along the direction of the left and right sides of the base, to be used for the moving frame of the horizontal hydraulic support;Roof beam is installed with sliding beam, sliding jack is equipped between the roof beam and the sliding beam, for making the sliding beam left and right slide on the roof beam.The horizontal hydraulic support of the application can be advanced in the direction of coal face in roadway by the mode of left and right moving frame, and the sliding beam on the roof beam can avoid anchor rod anchor cable device by left and right sliding, which realizes self-moving frame in roadway and has the function of avoiding anchor rod anchor cable device, not only reduces manual intervention, but also is beneficial to the automatic control of roadway equipment, and can also avoid a large number of anchor rod anchor cable device damage in the process of moving.

Description

Technical Field

[0001] This utility model relates to the field of end hydraulic supports, specifically, to a support device for ventilation roadway goaf retention process. Background Technology

[0002] In coal mining, to conserve resources and reduce costs, some mines employ the goaf retention technique. During this technique, the ventilation roadway from the previous working face is re-supported and reserved for the next working face. The retained ventilation roadway is no longer a typical roadway bearing only the pressure of mining from one side; it experiences two intense mining events and ultimately needs to withstand the immense pressure from the goaf on both sides. This technique requires constructing support walls on the sides of the roadway in the goaf to isolate the goaf and support the roadway roof. The roadway roof is typically supported by anchor bolts, cables, and steel beams, further reinforced by individual hydraulic props and end hydraulic supports.

[0003] However, due to the large weight and length of individual hydraulic columns, handling them is time-consuming and labor-intensive. In confined operating spaces within the tunnels, collisions and injuries are also possible. Furthermore, using individual hydraulic columns for support hinders the automated control of tunnel equipment, severely impacting coal mine efficiency.

[0004] Moreover, if hydraulic supports are installed at the ends in the ventilation tunnel, the hydraulic supports at the ends will cause a large number of anchor bolt and cable devices to be damaged during their movement.

[0005] The above problems can be solved as follows.

[0006] For example, the double-pushing end support for goaf retention disclosed in Chinese utility model patent CN202223198135.2 uses a push rod and a second reciprocating drive mechanism in conjunction with a pushing scraper conveyor, which increases the pushing force of a single unit, thereby reducing the number of end supports required and thus reducing the damage range to the roof anchor bolts, anchor cables, steel strips, mesh and other support structures in the end area. However, this solution still cannot completely avoid damage to the anchor bolt and anchor cable devices.

[0007] For example, Chinese invention patent CN202010515539.6 discloses a roadway end support equipment and method for pillarless mining along the goaf, which employs three sets of temporary support devices without repeated support. The device includes a base with four columns mounted on it. Column caps are installed on the top of the columns, and two sets of pushing jacks are installed on the front side of the base. The three sets of temporary support devices without repeated support are pushed against each other by the pushing jacks. However, this solution still uses fixed columns and cannot flexibly adjust the position of the supported roof. During the pushing process, there is still a possibility that the columns will damage the anchor bolt and cable devices.

[0008] Therefore, in the process of leaving the roadway along the goaf, there is an urgent need for a support device that can move itself and has the function of avoiding anchor bolt and anchor cable devices.

[0009] In order to solve the above problems, people have been seeking an ideal technological solution. Utility Model Content

[0010] The purpose of this utility model is to address the shortcomings of existing technologies by providing a support device for ventilation roadway goaf retention process. The horizontal hydraulic support advances in the roadway by moving left and right, and the sliding beam avoids the anchor bolt and anchor cable device by sliding left and right, which can realize the function of self-moving support and avoidance of anchor bolt and anchor cable device.

[0011] To achieve the above objectives, the technical solution adopted by this utility model is as follows: it includes a horizontal hydraulic support, which includes a base and a top beam. The base is provided with an inter-frame moving jack, which extends outward along the left and right sides of the base for moving the horizontal hydraulic support. A sliding beam is installed on the top beam, and a sliding jack is provided between the top beam and the sliding beam for sliding the sliding beam left and right on the top beam.

[0012] The horizontal hydraulic support of this application can be moved left and right by the inter-frame pushing jacks, and can be advanced in the roadway along the direction of the coal mining face by moving the support left and right. The sliding beam on the top beam can slide left and right to avoid the anchor bolt and anchor cable devices. This realizes the function of self-moving the support in the roadway and avoiding the anchor bolt and anchor cable devices. It not only reduces manual intervention and is conducive to the automatic control of roadway equipment, but also avoids damage to a large number of anchor bolt and anchor cable devices during the moving process.

[0013] Based on the above, a push-moving connecting seat can be connected to the front side of the base. The push-moving connecting seat is equipped with a scraper conveyor push-moving jack parallel to the inter-frame push-moving jack, for connecting and pushing the tail of the scraper conveyor.

[0014] By moving the connecting seat and the scraper conveyor jack, the horizontal hydraulic support can move the tail of the scraper conveyor in the roadway, which is beneficial to the automated control of the roadway equipment.

[0015] Based on the above, the base can be equipped with a leveling jack, which can extend and retract forward along the front-rear direction of the base. The extension end of the leveling jack is provided with a leveling chain for connecting and straightening the tail of the scraper machine.

[0016] By adjusting the jacks, the tail of the scraper conveyor can be corrected, which is beneficial for the automated control of tunnel equipment.

[0017] Based on the above, the horizontal hydraulic support adopts a four-column hydraulic support, and a guide box is provided between the rear columns of the horizontal hydraulic support.

[0018] By using four-column hydraulic supports and guide boxes, the horizontal hydraulic supports have strong support strength on the one hand, and reduce the overall space occupied by the horizontal hydraulic supports on the other hand, which is beneficial for support in narrow roadways.

[0019] Based on the above, side plates can be installed on the left and right sides of the top beam to unfold the rock retaining plate when moving the frame.

[0020] Based on the above, the base is provided with a front bottom adjustment device and a rear bottom adjustment device for adjusting the position of the base. The jack of the front bottom adjustment device extends forward from the front end of the base, and the jack of the rear bottom adjustment device extends backward from the rear end of the base.

[0021] The front and rear bottom adjustment devices can be used to correct the deviation of the horizontal hydraulic support during its movement.

[0022] Based on the above, the sliding beam is a box beam, and the sliding jack passes through one side plate of the sliding beam and is connected to the other side plate of the sliding beam.

[0023] This is beneficial for increasing the width of the left and right sides of the sliding beam, i.e., the support area, and also for increasing the sliding range of the sliding beam, thus enhancing the flexibility when avoiding anchor bolt and anchor cable devices.

[0024] Based on the above, a slide rail is provided on the top beam, a pad is installed below the bottom plate of the sliding beam, a groove is provided between the pads, and the slide rail is embedded in the groove.

[0025] By setting up pads and grooves between the pads, it is possible to avoid cutting grooves on the bottom plate of the sliding beam, thus avoiding affecting the overall structural strength of the sliding beam.

[0026] Based on the above, the top beam is provided with an L-shaped guide plate, and the bottom plate of the sliding beam extends beyond the front and rear side plates and is embedded between the L-shaped guide plate and the top beam.

[0027] The L-shaped guide plate can prevent the sliding beam from tilting left and right or deviating forward and backward during movement.

[0028] Based on the above, lifting jacks can be installed on the left and right sides of the base, and the lifting jacks are arranged in pairs, one in front of the other, on one side of the left and right sides of the base.

[0029] By using the bottom jack, the resistance during the movement of the horizontal hydraulic support can be reduced. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of this utility model from a frontal view.

[0031] Figure 2 This is a schematic diagram of the overall structure of this utility model from a top view (without a top beam);

[0032] Figure 3 This is a schematic diagram of the overall structure of this utility model from a side view.

[0033] Figure 4 This is a schematic diagram of the overall structure of the top beam of this utility model from a top view.

[0034] Figure 5 This is a schematic diagram of the overall structure of the utility model from the rear view perspective.

[0035] In the figure, the attached labels are as follows: base 1, top beam 2, inter-frame pushing jack 3, sliding beam 4, sliding jack 5, pushing connecting seat 6, scraper conveyor pushing jack 7, scraper conveyor tail 8, leveling jack 9, guide box 10, inter-frame side plate 11, front bottom adjustment device 12, rear bottom adjustment device 13, slide rail 14, pad 15, L-shaped guide plate 16, bottom lifting jack 17, telescopic beam 18, and rock retaining side plate 19. Detailed Implementation

[0036] The technical solution of this utility model will be further described in detail below through specific embodiments.

[0037] Example 1

[0038] like Figures 1-5 As shown, the ventilation roadway support equipment in this embodiment includes a horizontal hydraulic support, which includes a base 1 and a top beam 2. The base 1 is provided with an inter-frame moving jack 3, which extends outward along the left and right sides of the base 1 for moving the horizontal hydraulic support. A sliding beam 4 is installed on the top beam 2, and a sliding jack 5 is provided between the top beam 2 and the sliding beam 4 for sliding the sliding beam 4 left and right on the top beam 2.

[0039] Several horizontal hydraulic supports can be connected side to side by means of the inter-frame moving jacks 3 on the base 1, and the supports can be moved by pushing each other with the inter-frame moving jacks 3. Alternatively, in other embodiments, the supports can be moved by connecting the moving jacks 3 to other equipment such as vertical hydraulic supports.

[0040] The inter-frame moving jacks 3 are arranged in pairs on the same side of the base 1 so that they can apply force to the adjacent frame at the same time when the frame is moved. Applying force at the same time can reduce the offset angle when moving.

[0041] For example, when a horizontal hydraulic support is connected to other horizontal hydraulic supports on only one side, two inter-support pushing jacks 3 can be installed on this hydraulic support. When a horizontal hydraulic support is connected to other horizontal hydraulic supports on both the left and right sides, four inter-support pushing jacks 3 can be installed on this horizontal hydraulic support.

[0042] For example, two inter-frame jacks 3 are arranged in pairs on the same side of the base 1, one of which can be hinged to the base 1 in front of the front column and the other can be hinged to the base 1 behind the front column.

[0043] The anchor bolt and cable device in this application refers to devices such as anchor bolts, anchor cables, and steel frame beams used for roadway roof support.

[0044] The horizontal hydraulic support can be moved left and right by the inter-frame pushing jack 3, and can be advanced in the roadway along the direction of the coal mining face by moving the support left and right. The sliding beam 4 on the top beam 2 can slide left and right to avoid the anchor bolt and anchor cable devices. This realizes the function of self-moving the support in the roadway and avoiding the anchor bolt and anchor cable devices. This not only reduces manual intervention and is conducive to the automatic control of roadway equipment, but also avoids damage to a large number of anchor bolt and anchor cable devices during the moving process.

[0045] Meanwhile, since the sliding beam 4 of each horizontal hydraulic support is individually connected to the roof, when the horizontal hydraulic support is moved, only the roof above one horizontal hydraulic support can be exposed, thus reducing the exposed area of ​​the roof. Given the special nature of the goaf-side roadway process, the ventilation roadway needs to experience the impact of two mining operations from two working faces, which is relatively unstable. However, the horizontal hydraulic support of this application has a small exposed roof area when it moves, which can reduce the risk of roof collapse.

[0046] Example 2

[0047] Based on embodiment 1, a push-connecting seat 6 can be connected to the front side of the base 1. The push-connecting seat 6 is provided with a scraper conveyor push jack 7 parallel to the inter-frame push jack 3, for connecting and pushing the scraper conveyor tail 8.

[0048] The push-connecting seat 6 is an extension of the base 1 and is fixedly connected to the front end of the base 1. Two reinforcing main beams that are directly connected to the base 1 can be installed on the push-connecting seat 6. The scraper conveyor push-jack 7 is installed on the two reinforcing main beams.

[0049] The scraper conveyor push jacks 7 can be set in pairs to avoid the scraper conveyor tail 8 shifting when force is applied.

[0050] By pushing the connecting seat 6 and the scraper conveyor pushing the jack 7, the horizontal hydraulic support can push the scraper conveyor tail 8 in the roadway, which is beneficial to the automated control of the roadway equipment.

[0051] Example 3

[0052] Based on embodiment 2, a leveling jack 9 can be installed on the base 1. The leveling jack 9 can extend and retract forward along the front and rear direction of the base 1. The extension end of the leveling jack 9 is provided with a leveling chain for connecting and straightening the tail of the leveling scraper machine 8.

[0053] The leveling jacks 9 can be installed in pairs to prevent the scraper conveyor tail 8 from shifting when force is applied. The two leveling jacks 9 can be installed on the base 1 of the two horizontal hydraulic supports respectively. On the one hand, this can avoid the two jacks occupying too much space on the base 1, and on the other hand, it can allow the leveling jacks 9 to apply greater force.

[0054] The jack 9 can be installed below the inter-frame push jack 3 on the base 1.

[0055] By aligning the jack 9, the tail section 8 of the scraper conveyor can be corrected, which is beneficial for the automated control of the roadway equipment.

[0056] Example 4

[0057] Based on Embodiment 1, in this embodiment, the horizontal hydraulic support adopts a four-column hydraulic support, and a guide box 10 is provided between the rear columns of the horizontal hydraulic support.

[0058] A telescopic beam 18 can be installed at the front end of the top beam 2 of the horizontal hydraulic support to increase the support area.

[0059] By setting up a four-column hydraulic support and a guide box 10, the horizontal hydraulic support has strong support strength on the one hand, and reduces the overall space occupied by the horizontal hydraulic support on the other hand, which is beneficial for support in narrow roadways.

[0060] Example 5

[0061] Based on Embodiment 1, side plates 11 can be installed on the left and right sides of the top beam 2 for unfolding the retaining wall when moving the support; the side plates 11 can be set between the supports of the horizontal hydraulic support, and the side plates 11 can be set between the supports of two adjacent horizontal hydraulic supports. The side plates 11 rotate on the top beam 2 by means of jacks.

[0062] Furthermore, a rock-blocking side plate 19 can be installed on the top beam 2. When several horizontal hydraulic supports are connected left and right, the rock-blocking side plate 19 is installed at the leftmost and rightmost ends of these horizontal hydraulic supports. Unlike the side plate 11 between the supports, the rock-blocking side plate 19 can have a larger baffle area.

[0063] Example 6

[0064] Based on Embodiment 1, the base 1 is provided with a front bottom adjustment device 12 and a rear bottom adjustment device 13 for adjusting the position of the base 1. The jack of the front bottom adjustment device 12 extends forward from the front end of the base 1, and the jack of the rear bottom adjustment device 13 extends backward from the rear end of the base 1.

[0065] like Figure 1 As shown, the front bottom adjustment device 12 can be directly corrected by using a jack. The front bottom adjustment device 12 is used to adjust the position between the base 1 and the tail of the scraper conveyor.

[0066] like Figure 3 , Figure 5 As shown, the rear bottom adjustment device 13 can be used in the form of a bottom adjustment beam for correction. The rear bottom adjustment device 13 is used to adjust the position between the base 1 and the roadway sidewall.

[0067] The front bottom adjustment device 12 and the rear bottom adjustment device 13 can be used to correct the deviation during the movement of the horizontal hydraulic support.

[0068] Example 7

[0069] Based on Embodiment 1, the sliding beam 4 is a box beam, and the sliding jack 5 passes through one side plate of the sliding beam 4 and is connected to the other side plate of the sliding beam 4. This allows the sliding jack 5 to have a longer stroke range, which is beneficial to increasing the width of the left and right sides of the sliding beam 4, i.e., the support area, and also beneficial to increasing the sliding range of the sliding beam 4, thus enhancing the flexibility when avoiding anchor bolt and anchor cable devices.

[0070] Example 8

[0071] Based on embodiment 7, a slide rail 14 is provided on the top beam 2, and a pad 15 is installed below the bottom plate of the sliding beam 4. A groove is provided between the pads 15, and the slide rail 14 is embedded in the groove.

[0072] By setting the pad 15 and the groove between the pad 15, it is possible to avoid slotting on the bottom plate of the sliding beam 4, thus avoiding affecting the overall structural strength of the sliding beam 4.

[0073] Example 9

[0074] Based on embodiment 7 or embodiment 8, the top beam 2 is provided with an L-shaped guide plate 16, and the bottom plate of the sliding beam 4 extends beyond the front and rear side plates and is embedded between the L-shaped guide plate 16 and the top beam 2.

[0075] After the L-shaped guide plate 16 is installed on the top beam 2, an embedding groove is formed between the L-shaped guide plate 16 and the top beam 2. The parts of the bottom plate of the sliding beam 4 that extend beyond the front and rear side plates are embedded in this embedding groove, which can prevent the sliding beam 4 from tilting left and right or tilting forward and backward when it moves.

[0076] Example 10

[0077] Based on Embodiment 1, furthermore, lifting jacks 17 can be installed on the left and right sides of the base 1, with the lifting jacks 17 arranged in pairs, one in front of the other, on one side of the left and right sides of the base 1.

[0078] For example, when a horizontal hydraulic support is connected to other horizontal hydraulic supports on only one side, two inter-support pushing jacks 3 can be installed on this hydraulic support, and two bottom lifting jacks 17 are installed on the other side of the inter-support pushing jacks 3.

[0079] For example, when multiple horizontal hydraulic supports are connected side to side, only the leftmost horizontal hydraulic support has two bottom lifting jacks 17 on its left side and the rightmost horizontal hydraulic support has two bottom lifting jacks 17 on its right side.

[0080] By using the bottom jack 17, the resistance during the movement of the horizontal hydraulic support can be reduced.

[0081] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A support device for ventilation roadway roadway retention technology, characterized in that, The system includes a horizontal hydraulic support, which includes a base (1) and a top beam (2). The base (1) is provided with a frame-shifting jack (3), which extends outward along the left and right sides of the base (1) for moving the horizontal hydraulic support. A sliding beam (4) is installed on the top beam (2), and a sliding jack (5) is provided between the top beam (2) and the sliding beam (4) for sliding the sliding beam (4) left and right on the top beam (2).

2. The ventilation roadway support equipment according to claim 1, characterized in that, The front side of the base (1) can be connected to the push-moving connecting seat (6), and the push-moving connecting seat (6) is provided with a scraper push-moving jack (7) parallel to the inter-frame push-moving jack (3) for connecting and pushing the scraper tail (8).

3. The ventilation roadway support equipment according to claim 2, characterized in that, The base (1) can be equipped with a leveling jack (9), which can extend and retract forward along the front and rear direction of the base (1). The leveling jack (9) is provided with a leveling chain at the extension end to connect and straighten the tail of the scraper machine (8).

4. The ventilation roadway support equipment according to claim 1, characterized in that, The horizontal hydraulic support adopts a four-column hydraulic support, and a guide box (10) is provided between the rear columns of the horizontal hydraulic support.

5. The ventilation roadway support equipment according to claim 1, characterized in that, The top beam (2) can be fitted with side plates (11) on both the left and right sides for deploying retaining walls when moving the frame.

6. The ventilation roadway support equipment according to claim 1, characterized in that, The base (1) is provided with a front bottom adjustment device (12) and a rear bottom adjustment device (13) for adjusting the position of the base (1). The jack of the front bottom adjustment device (12) extends forward from the front end of the base (1), and the jack of the rear bottom adjustment device (13) extends backward from the rear end of the base (1).

7. The ventilation roadway support equipment according to claim 1, characterized in that, The sliding beam (4) is a box beam, and the sliding jack (5) passes through one side plate of the sliding beam (4) and is connected to the other side plate of the sliding beam (4).

8. The ventilation roadway support equipment according to claim 7, characterized in that, The top beam (2) is provided with a slide rail (14), and a pad (15) is installed below the bottom plate of the sliding beam (4). A groove is provided between the pads (15), and the slide rail (14) is embedded in the groove.

9. The ventilation roadway support equipment according to claim 7 or 8, characterized in that, The top beam (2) is provided with an L-shaped guide plate (16), and the bottom plate of the sliding beam (4) extends beyond the front and rear side plates and is embedded between the L-shaped guide plate (16) and the top beam (2).

10. The ventilation roadway support equipment according to claim 1, characterized in that, Lifting jacks (17) can be installed on the left and right sides of the base (1). The lifting jacks (17) are arranged in pairs, one in front of the other, on one side of the left and right sides of the base (1).

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