Roadway advance support with base side prop device
By designing a roadway advanced support with a base side bracing device, the problems of instability caused by the inability to install the connecting frame stabilizing device on the base and unevenness of the base plate were solved, thereby improving the stability and support strength of the support.
Patent Information
- Application Number
- CN202522103697.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-29
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-29
AI Technical Summary
In situations where roadways are compact and there is an excessive amount of equipment on the ground, existing advanced hydraulic supports cannot accommodate the installation of connecting and stabilizing devices on the base. Furthermore, uneven roadway floors cause the supports to shift and become unstable, reducing the strength and safety of the support.
A roadway advance support with a base side support device was designed, including components such as a fixed plate, a side support plate, a side support jack, and T-bolts. Bottom support is achieved by the extension and retraction of the hinge pin and the jack, which can adapt to uneven bottom plates, and is fixed to the main body of the roadway advance support by T-bolts.
It features a simple structure, convenient installation, reliable mechanism, wide applicability, and strong adjustability, which improves the stability and support strength of the support and reduces support insecurity.
Smart Images
Figure CN224679536U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hydraulic support technology in coal mines, and in particular to a roadway advance support with a base side support device. Background Technology
[0002] With the continuous improvement and development of fully mechanized mining and caving technology in my country, the use of advance supports for working face roadways has become particularly important. Improving the support conditions of advance supports in working face roadways and realizing the mechanization and automation of advance supports in fully mechanized mining and caving working face roadways are important ways to improve the safety, high production, and high efficiency of fully mechanized mining and caving working faces. Although advance supports in fully mechanized mining and caving working face roadways occupy a relatively small area, the working face roadway area is the intersection of the roadway and the working face. Under the action of various support pressures, the surrounding rock is greatly affected by mining activities, the mine pressure manifestation is complex, and there is a large space without pillars. Therefore, the advance support section of the roadway is both a key point for roof maintenance and a difficult point for roof management.
[0003] With the development of coal mining technology, more and more mines are adopting advanced hydraulic supports for roadway pre-support. The selection of suitable roadway pre-supports must be based on comprehensive factors such as the geological conditions of the working face, the dip angle and thickness of the coal seam, to create favorable conditions for improving the safety and reliability of the working face. This requires that the roadway pre-supports have both appropriate support resistance and a good mechanical structure. The use of advanced hydraulic supports has, to some extent, solved the problems of high labor intensity, slow retraction speed, and low production efficiency of single-prop supports. However, in actual use, it has been found that existing advanced hydraulic supports generally have a problem: due to the arrangement of equipment such as scraper conveyors and transfer machines in the roadway, and the need to reserve pedestrian passages, the base width of the roadway pre-support is often relatively narrow. To increase the stability of the left and right rows, lateral tensioning devices are added to the top beam and base to ensure the overall stability of the support. However, in most cases, due to the compact roadway and excessive equipment on the ground, it is impossible to install the connecting frame stabilizing device on the base. At the same time, the unevenness of the roadway floor causes instability during the misalignment and movement of the supports, which also increases the insecurity of the support and reduces the support strength.
[0004] Designing a roadway advance support with a base and side support device that is simple in structure, easy to store and install, highly versatile, reliable in mechanism, widely applicable, and highly adjustable is a problem that needs to be solved. Utility Model Content
[0005] To address the technical problems encountered by existing pre-support systems during use, such as the inability to install a connecting and stabilizing device on the base due to compact roadways and excessive ground equipment, and the instability caused by uneven roadway floors during misalignment and relocation of the support system, which increases the safety of the support and reduces its strength, this utility model provides a roadway pre-support system with a base side support device. This achieves the goals of simple structure, convenient storage and installation, strong versatility, reliable mechanism, wide applicability, and strong adjustability.
[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a roadway advance support with a base side support device, including a base side support device and a roadway advance support body. The base side support device includes a fixed plate, a side support plate, a side support jack, a T-bolt, a pressure block, a hinge pin, a jack fixing pin, and a pressure block fixing pin. The fixed plate is provided with multiple fixed plate connecting ears, and the side support plate is provided with side support plate fixing ears that match the fixed plate connecting ears. The fixed plate connecting ears are inserted into the side support plate fixing ears and then fixed by hinge pins. The pressure block is set on the fixed plate and has locking holes. The jack includes a jack cylinder with a trunnion seat and a piston rod with a hinge hole. The trunnion seat of the jack cylinder is matched with a locking hole on the pressure block. The jack cylinder is connected to the locking hole of the pressure block by a fixing pin and is pressed by the pressure block. The ear plate at the end of the piston rod is pinned to the piston rod ear plate seat on the side support plate by a jack fixing pin. The extension and retraction of the piston rod of the side support jack pushes the side support plate to extend and retract as a whole, thereby supporting the bottom of the roadway advance support body. The fixing plate is equipped with multiple T-bolts, which are used to fix the fixing plate to the roadway advance support body.
[0007] As a further optimization of the aforementioned roadway advance support with base side support device, the main body of the roadway advance support includes a base body, a front connecting rod, a rear connecting rod, an inclined beam, a top beam, a front beam, and a column. The upper and lower ends of the column are fixed to the top beam and the base body, respectively. Adjacent columns are fixedly supported by the interconnected front connecting rod, rear connecting rod, and inclined beam. The front beam is located at the front end of the top beam.
[0008] As a further optimization of the aforementioned roadway advance support with base side support device, the base side support device is fixed to the fixed base body by T-bolts.
[0009] Compared with the prior art, the beneficial effects of this utility model are: I. This utility model has a clever design and is easy to store and install: when the base plate is in good condition, the support device can be retracted by jack to avoid affecting the pedestrian passage. The overall fixing method is to use bolts and pins for fixing, which is easy to disassemble. There are mounting holes on both sides of the tunnel advance base, which can meet the requirements of left and right side installation, and has strong versatility.
[0010] II. The mechanism of this utility model is reliable and highly applicable: the components are reliably fixed and connected by pins, and can be adjusted at any time by extending and retracting the jack. It is suitable for uneven base plates and has strong adjustability. Attached Figure Description
[0011] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the base side support device; Figure 3 This is a side view of the base side support device. Figure 4 This is a schematic diagram of the main three-dimensional structure of the tunnel's advanced support system; Figure 5 This is a schematic diagram of the three-dimensional structure of the fixed plate; Figure 6 This is a schematic diagram of the three-dimensional structure of the side support plate; The diagram is marked as follows: 1. Base side support device, 101. Fixing plate, 102. Side support plate, 103. Side support jack, 104. T-bolt, 105. Pressure block, 106. Hinge pin, 107. Jack fixing pin, 108. Pressure block fixing pin, 109. Fixing plate connecting ear plate, 1010. Side support plate fixing ear seat, 2. Main body of the tunnel advance support, 201. Base body, 202. Front connecting rod, 203. Rear connecting rod, 204. Inclined beam body, 205. Top beam body, 206. Front beam body, 207. Column. Detailed Implementation
[0012] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.
[0013] like Figure 1-6As shown, a roadway advance support with a base side support device includes a base side support device 1 and a roadway advance support body 2. The base side support device 1 includes a fixing plate 101, a side support plate 102, a side support jack 103, a T-bolt 104, a pressure block 105, a hinge pin 106, a jack fixing pin 107, and a pressure block fixing pin 108. The fixing plate 101 is provided with multiple fixing plate connecting ears 109. The side support plate 102 is provided with side support plate fixing ears 1010 that match the fixing plate connecting ears 109. The fixing plate connecting ears 109 are inserted into the side support plate fixing ears 1010 and then fixed by the hinge pin 106. The pressure block 105 is provided on the fixing plate 101 and has a locking hole. The jack 103 includes a jack cylinder with a trunnion seat and a piston rod with a hinge hole. The trunnion seat of the jack cylinder is matched with the locking hole on the pressure block 105. The jack cylinder is connected to the locking hole of the pressure block 105 by the pressure block fixing pin 108 and is pressed by the pressure block 105. The ear plate at the end of the piston rod is pinned to the piston rod ear plate seat on the side support plate 102 by the jack fixing pin 107. The extension and retraction of the piston rod of the side support jack 103 pushes the side support plate 102 to extend and retract as a whole, thereby supporting the bottom of the roadway advance support body 2. The fixing plate 101 is provided with multiple T-bolts 104, which are used to fix the fixing plate 101 to the roadway advance support body 2.
[0014] like Figure 4 As shown, the main body 2 of the tunnel advance support includes a base body 201, a front connecting rod 202, a rear connecting rod 203, an inclined beam body 204, a top beam body 205, a front beam body 206, and a column 207. The upper and lower ends of the column 207 are fixed to the top beam body 205 and the base body 201, respectively. Two adjacent columns 207 are fixedly supported by the interconnected front connecting rod 202, rear connecting rod 203, and inclined beam body 204. The front beam body 206 is located at the front end of the top beam body 205.
[0015] The base side support device 1 is fixed to the fixed base body 201 by T-bolts 104.
[0016] like Figure 2 , 3 As shown, Figure 2 This is a three-dimensional structural diagram of the base side support device; Figure 3This is a side view of the base side support device. The base side support device 1 mainly consists of a fixed plate 101, a side support plate 102, a side support jack 103, and a T-bolt 104. The fixed plate 101 has a side support device connecting ear plate, a side support jack fixing ear seat, and a square hole for T-bolt 104 installation. The side support plate 102 has a fixed device connecting ear plate and a jack hinge ear plate. The side support jack 103 mainly consists of a jack cylinder with a trunnion seat and a piston rod with a hinge hole. After the fixed plate 101 and the side support plate 102 are combined, they are fixed by a hinge pin and a cotter pin. The cylinder trunnion seat of the side support jack 103 is assembled to the fixed plate 101 and fixed by a pressure block 105 with a locking hole, a pin, and a cotter pin. After the piston rod of the side support jack 103 is combined with the jack hinge ear plate of the side support plate 102, it is fixed by a cotter pin and a pin.
[0017] like Figure 1 , 2 As shown in Figure 3, after the overall assembly of this utility model, the fixing device 101 is assembled with the base body of the roadway advance support body 2 by T-bolts 104 and nuts. The extension and retraction of the side support device 102 can be achieved by the extension and retraction of the piston of the side support jack 103, thereby achieving support for the base plate, increasing the support area of the base, and improving the stability and support strength of the support.
[0018] This utility model has a simple structure, is easy to store and install, has strong versatility, reliable mechanism, wide applicability, and strong adjustability. It solves the technical problems encountered by existing advanced supports during use, such as the inability to install the connecting frame stabilizing device on the base due to the compact roadway and too much equipment placed on the ground. At the same time, the unevenness of the roadway floor causes instability during the misalignment and relocation of the support, which also increases the insecurity of the support and reduces the support strength. It has a good market prospect and development space.
[0019] The preferred embodiments and examples of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments and examples. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the concept of the present invention.
Claims
1. A roadway advance support with a base side support device, comprising a base side support device (1) and a roadway advance support body (2), characterized in that: The base side support device (1) includes a fixed plate (101), a side support plate (102), a side support jack (103), a T-bolt (104), a pressure block (105), a hinge pin (106), a jack fixing pin (107), and a pressure block fixing pin (108). The fixed plate (101) is provided with multiple fixed plate connecting ears (109), and the side support plate (102) is provided with a side support plate fixing ear seat (1010) that matches the fixed plate connecting ears (109). The fixed plate connecting ears (109) are inserted into the side support plate fixing ear seat (1010) and then fixed by the hinge pin (106). The pressure block (105) is provided on the fixed plate (101) and has a locking hole. The side support jack (103) includes a trunnion seat. The jack cylinder and the piston rod with a hinge hole are used to match the locking hole on the pressure block (105). The jack cylinder is connected to the locking hole of the pressure block (105) by the pressure block fixing pin (108) and pressed by the pressure block (105). The ear plate at the end of the piston rod is connected to the piston rod ear plate seat on the side support plate (102) by the jack fixing pin (107). The extension and retraction of the piston rod of the side support jack (103) pushes the side support plate (102) to extend and retract as a whole, thereby supporting the bottom of the roadway advance support body (2). The fixing plate (101) is provided with multiple T-bolts (104), and the fixing plate (101) is fixed to the roadway advance support body (2) by the T-bolts (104).
2. The roadway advance support with base side support device as described in claim 1, characterized in that: The main body (2) of the tunnel advance support includes a base body (201), a front connecting rod (202), a rear connecting rod (203), an inclined beam body (204), a top beam body (205), a front beam body (206), and a column (207). The upper and lower ends of the column (207) are fixed on the top beam body (205) and the base body (201) respectively. Two adjacent columns (207) are fixedly supported by the interconnected front connecting rod (202), rear connecting rod (203), and inclined beam body (204). The front beam body (206) is located at the front end of the top beam body (205).
3. The roadway advance support with base side support device as described in claim 2, characterized in that: The base side support device (1) is fixed to the fixed base body (201) by T-bolts (104).