A type of direct-lift sliding temporary support for tunneling machines

Abstract

This invention discloses a direct-lift sliding temporary support for tunneling machines, comprising a sliding base slidably mounted on the cutting section of the tunneling machine, a temporary support telescopic structure, and a top support structure. The sliding base is connected to the cutting section of the tunneling machine via a support base plate, and the support base plate is mounted on the cutting section of the tunneling machine via a pressure plate assembly. The temporary support telescopic structure and the top support structure are connected by an angle adjustment assembly. This invention, through the cooperation of the sliding cylinder and the sliding base plate and the support base plate, enables the temporary support to move forward an appropriate distance without being opened, solving the problem of insufficient forward extension distance. Furthermore, by fixing the temporary support above the cutting section of the tunneling machine via the support base plate, it effectively utilizes the tunneling machine space. Its fixing method is simple and reliable, easy to disassemble, and has a wide range of applications. Finally, through the cooperation of the lifting cylinder and the telescopic cylinder, the lifting action and the opening of the telescopic boom are achieved, enabling the realization of an ideal support height.

Description

Technical Field

[0001] This invention belongs to the field of coal mine roadway construction technology, and in particular relates to a direct-lift sliding temporary support for tunneling machines. Background Technology

[0002] Currently, the temporary supports available for tunneling machines on the market can be mainly divided into two types: tilting type and direct lifting type. Tilting type temporary supports are further divided into two types: one uses multiple sets of hydraulic cylinders to tilt and lift the machine in conjunction with pins on the side of the cutting section; the other connects directly to two sets of bases on the cutting section frame via bolts, and tilts and lifts the machine through multiple sets of hydraulic cylinders. The operation process of both types of temporary supports can be broken down into tilting and lifting. In underground support work, the tilting action requires a certain height; if the machine is too tall, the tilting action cannot be completed. Furthermore, when this type of support is fully extended, the furthest distance it extends beyond the horizontal distance of the cutting head when it is touching the ground is insufficient, making it unsuitable for underground anchoring operations.

[0003] In addition, there are three types of fixed positions for direct-lift temporary supports. The first type is fixed above the machine frame, using a set of hydraulic cylinders to lift the support and then extending it forward via a multi-stage telescopic boom. While stable, this type occupies a large amount of installation space above the machine and is only suitable for tunneling machines with the operator's control panel on the left or right sides of the machine. It is not suitable for roadheader / anchor machine (BOAM) and has a limited range of applications, failing to meet the needs of most tunneling and BOAM machines. The second type is directly installed on the cutting section frame of the tunneling machine, also using a set of hydraulic cylinders to lift the support and then extending it forward via a multi-stage telescopic boom. However, its forward extension distance is still insufficient to meet the support requirements. The last type is a sliding temporary support, characterized by sliding rails arranged on the left and right sides of the tunneling machine. The support extends forward using hydraulic cylinders on the rails, and is lifted using a scissor-like structure similar to a trolley. This arrangement allows the support to reach the ideal height, but the forward extension distance is too short, also failing to meet practical application requirements.

[0004] In summary, temporary supports needed during construction must extend far and high, have low working height requirements, save installation space, and be highly adaptable; however, most existing temporary supports on the market can only meet one or two of these requirements and cannot meet all usage needs at the same time. Summary of the Invention

[0005] The technical problem to be solved by this invention is to address the shortcomings of the prior art by providing a direct-lift sliding temporary support for tunneling machines. Through the cooperation of the sliding cylinder and the sliding base plate and the support base plate, the temporary support can be moved forward an appropriate distance without being opened, solving the problem of insufficient forward extension distance. Furthermore, the temporary support is fixed above the cutting section of the tunneling machine by the support base plate, effectively utilizing the tunneling machine's space. Its fixing method is simple and reliable, easy to disassemble, and has a wide range of applications. Finally, through the cooperation of the lifting cylinder and the telescopic cylinder, the lifting action and the opening of the telescopic boom are achieved, realizing the ideal support height. This allows the temporary support to extend further and higher while effectively improving the tunneling machine's adaptability to low-lying tunnels.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a straight-lift sliding temporary support for a tunneling machine, comprising a sliding base slidably disposed on the cutting section of the tunneling machine, a temporary support telescopic structure disposed on the sliding base, and a top support structure disposed on top of the temporary support telescopic structure. The sliding base is connected to the cutting section of the tunneling machine through a support base plate, and the support base plate is installed on the cutting section of the tunneling machine through a pressure plate assembly. The temporary support telescopic structure and the top support structure are connected by an angle adjustment assembly. The sliding base includes a sliding base plate horizontally disposed on the support base plate, and the sliding base plate and the support base plate are slidably connected by a sliding cylinder; The temporary support telescopic structure includes a telescopic cylinder assembly disposed on the sliding base plate. The telescopic cylinder assembly is provided with a telescopic cylinder. The bottom of the telescopic cylinder assembly is provided with a lifting cylinder that drives the telescopic cylinder assembly to rise or fall. The top of the telescopic cylinder assembly is provided with an angle adjusting cylinder that drives the top support structure to adjust its angle. The top support structure includes a top support frame disposed on the top of the telescopic cylinder assembly, side support frames slidably disposed on both sides of the top support frame, and a front support frame slidably disposed at the front end of the top support frame. The angle adjustment assembly includes a top connecting seat disposed at the top of the telescopic cylinder assembly and the connection point of the top support frame. Both ends of the top connecting seat are provided with connecting seat ear plates. A pressure cap is horizontally disposed inside the top support frame. The pressure cap is parallel to the top support connecting rod. Two connecting ears are symmetrically disposed at the bottom of the pressure cap. The top connecting seat is hinged to the connecting ears by a pin.

[0007] Furthermore, the pressure plate assembly includes two sets of pressure plates symmetrically arranged on the support base plate. Both sets of pressure plates are horizontally arranged on the edge of the support base plate, and each set of pressure plates is evenly arranged along the length direction of the support base plate. Multiple bolts are arranged on the pressure plates, and the bolts pass through the pressure plates and the support base plate in sequence and are connected to the cutting part of the tunneling machine. A support block is horizontally arranged between the pressure plate and the support base plate. The width of the pressure plate is greater than the width of the support block. The bottom of the pressure plate and the side of the support block form a sliding groove for the sliding base plate to slide.

[0008] Furthermore, a bottom connecting seat is provided on the sliding base plate, the bottom connecting seat is arranged at one end of the sliding base plate, and two lifting positioning seats are symmetrically arranged at the front end of the bottom connecting seat; two sliding positioning seats are also symmetrically arranged on the sliding base plate, and the two sliding positioning seats are arranged at the other end of the sliding base plate.

[0009] Furthermore, two positioning blocks are symmetrically arranged on the sliding base plate, and the positioning blocks are arranged between the lifting positioning seat and the sliding positioning seat; two sliding positioning seats are also symmetrically arranged on the support base plate, and the sliding positioning seats on the support base plate and the bottom connecting seat are arranged at the same end. The central axis of the positioning block arranged on the same side, the central axis of the sliding positioning seat on the support base plate, and the central axis of the sliding positioning seat on the sliding base plate coincide. Two sliding cylinders are symmetrically arranged on the sliding base plate and the support base plate. One end of the sliding cylinder is installed on the sliding positioning seat of the support base plate, and the other end of the sliding cylinder is installed on the sliding positioning seat of the sliding base plate. The positioning block is arranged in the middle of the sliding cylinder.

[0010] Furthermore, the telescopic cylinder assembly includes a telescopic outer cylinder disposed on a bottom connecting seat, a telescopic middle cylinder disposed within the telescopic outer cylinder, and a telescopic inner cylinder disposed within the telescopic middle cylinder. The bottom of the telescopic outer cylinder is mounted on the bottom connecting seat, and the top of the telescopic inner cylinder is connected to the top connecting seat via a spring. The telescopic cylinder is installed inside the telescopic outer cylinder, and the bottom of the telescopic cylinder is installed inside the bottom connecting seat; the bottom of the lifting cylinder is installed inside the lifting positioning seat, and the top of the lifting cylinder is connected to the top of the telescopic outer cylinder. The top of the lifting cylinder is connected to the telescopic outer cylinder through a pin.

[0011] Furthermore, the top support frame includes two symmetrically arranged top support crossbars and two symmetrically arranged top support connecting rods between the two top support crossbars. The two top support crossbars and the two top support connecting rods form a closed frame structure. Two auxiliary connecting rods are also symmetrically arranged within the top support frame. The ends of the auxiliary connecting rods are arranged on the top support crossbars, and the sides of the auxiliary connecting rods are in close contact with the sides of the top support connecting rods. Top support lugs are provided on the sides of the top support crossbars. The top support crossbars, top support connecting rods, and auxiliary connecting rods are all hollow structures.

[0012] Furthermore, the side support frame includes two side support units symmetrically arranged on both sides of the top support frame. Each side support unit includes two side support crossbars symmetrically inserted into the top support frame. A side support connecting rod is horizontally connected between the ends of the two side support crossbars extending to the outside of the top support frame. The side support connecting rod and the top support crossbar are parallel, and the two side support crossbars and the side support connecting rod form a U-shaped frame structure. A side extension cylinder is provided in the top support frame to drive the side support crossbars. Of the two side support crossbars, one side support crossbar is inserted into the top support connecting rod on one side, and the other side support crossbar is inserted into the auxiliary connecting rod on the other side.

[0013] Furthermore, the front support frame includes two symmetrically arranged front support crossbars passing through the top support frame. A front support connecting rod is horizontally connected between the ends of the two front support crossbars extending to the outside of the top support frame. The two front support crossbars and the front support connecting rod form a U-shaped frame structure. The front support crossbar passes through the top support crossbar, and a forward extension cylinder that drives the front support frame to move is provided in the end of the top support crossbar away from the front support connecting rod.

[0014] Furthermore, there are two angle-adjusting cylinders, which are symmetrically arranged on both sides of the top connecting seat; one end of the angle-adjusting cylinder is connected to the top support ear seat, and the other end of the angle-adjusting cylinder is connected to the ear plate of the connecting seat.

[0015] The beneficial effects of this invention are that, through the cooperation between the sliding cylinder and the sliding base plate and the support base plate, the temporary support can be moved forward an appropriate distance without being opened, solving the problem of insufficient forward extension distance; in addition, by fixing the temporary support above the cutting part of the tunneling machine through the support base plate, the space of the tunneling machine is effectively utilized, and its fixing method is simple and reliable, easy to disassemble, and has a wide range of applications; finally, through the cooperation of the lifting cylinder and the telescopic cylinder, the lifting action and the opening of the telescopic boom can be realized, achieving the ideal support height; thus, the temporary support can effectively improve the tunneling machine's adaptability to low-lying tunnels, and can support further and higher.

[0016] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0017] Figure 1 This is a diagram showing the usage state of the present invention.

[0018] Figure 2 This is a schematic diagram of the top support structure of the present invention.

[0019] Figure 3 For the present invention Figure 2 AA sectional view.

[0020] Figure 4 For the present invention Figure 2 BB cross-sectional view.

[0021] Figure 5 This is a schematic diagram of the structure of the sliding base plate of the present invention.

[0022] Figure 6 This is a schematic diagram showing the connection relationship between the support base plate, the sliding base plate, and the telescopic outer cylinder of the present invention.

[0023] Figure 7 for Figure 6 CC section view.

[0024] Figure 8 This is a schematic diagram of the telescopic cylinder assembly of the present invention.

[0025] Figure 9 This is a schematic diagram showing the connection relationship between the telescopic inner cylinder, the angle adjustment component, and the top support frame of the present invention.

[0026] Explanation of reference numerals in the attached figures: 1—Tunneling machine cutting section; 2—Support base plate; 3—Pressure plate; 4—Support block; 5—Adjusting screw; 6—Side pad; 7—Lower pad; 8—Auxiliary pad; 9—Sliding base plate; 10—Bottom connecting seat; 11—Lifting positioning seat; 12—Sliding positioning seat; 13—Positioning block; 14—Telescopic cylinder; 15—Lifting cylinder; 16—Adjusting cylinder; 17—Telescopic outer cylinder; 18—Telescopic middle cylinder; 19—Telescopic inner cylinder; 20—Sliding hydraulic cylinder; 21—Top support crossbar; 22—Top support connecting rod; 23—Auxiliary connecting rod; 24—Side support crossbar; 25—Side support connecting rod; 26—Side extension cylinder; 27—Front support crossbar; 28—Front support connecting rod; 29—Front extension cylinder; 30—Top connecting seat; 31—Spring; 32—Pressure cap; 33—Connecting lug; 34—Connecting lug plate; 35—Top support lug. Detailed Implementation

[0027] like Figures 1 to 9 As shown, the present invention includes a sliding base slidably disposed on the cutting section 1 of a tunneling machine, a temporary support telescopic structure disposed on the sliding base, and a top support structure disposed on top of the temporary support telescopic structure. The sliding base is connected to the cutting section 1 of the tunneling machine through a support base plate 2, and the support base plate 2 is installed on the cutting section 1 of the tunneling machine through a pressure plate assembly. The temporary support telescopic structure and the top support structure are connected by an angle adjustment assembly. The sliding base includes a sliding base plate 9 horizontally disposed on the support base plate 2, and the sliding base plate 9 and the support base plate 2 are slidably connected by a sliding cylinder 20; The temporary support telescopic structure includes a telescopic cylinder assembly installed on the sliding base plate 9. The telescopic cylinder assembly is equipped with a telescopic cylinder 14. The bottom of the telescopic cylinder assembly is equipped with a lifting cylinder 15 that drives the telescopic cylinder assembly to rise or fall. The top of the telescopic cylinder assembly is equipped with an angle adjusting cylinder 16 that drives the top support structure to adjust its angle. The top support structure includes a top support frame disposed on the top of the telescopic cylinder assembly, side support frames slidably disposed on both sides of the top support frame, and a front support frame slidably disposed at the front end of the top support frame. The angle adjustment assembly includes a top connecting seat 30 disposed at the top of the telescopic cylinder assembly and the connection point of the top support frame. Both ends of the top connecting seat 30 are provided with connecting seat ear plates 34. A pressure cover 32 is horizontally disposed inside the top support frame. The pressure cover 32 is parallel to the top support connecting rod 22. Two connecting ears 33 are symmetrically disposed at the bottom of the pressure cover 32. The top connecting seat 30 is hinged to the connecting ears 33 by a pin.

[0028] This invention, through the cooperation between the sliding cylinder 20, the sliding base plate 9, and the support base plate 2, enables the temporary support to move forward an appropriate distance without being opened, solving the problem of insufficient forward extension distance. Furthermore, by fixing the temporary support above the cutting section 1 of the tunneling machine via the support base plate 2, the space of the tunneling machine is effectively utilized. Its fixing method is simple and reliable, easy to disassemble, and has a wide range of applications. Finally, through the cooperation of the lifting cylinder 15 and the telescopic cylinder 14, the lifting action and the opening of the telescopic arm are achieved, realizing the ideal support height. This allows the temporary support to extend further and higher while effectively improving the tunneling machine's adaptability to low-lying tunnels.

[0029] like Figure 1 As shown, in this embodiment, the pressure plate assembly includes two sets of pressure plates 3 symmetrically arranged on the support base plate 2. Both sets of pressure plates 3 are horizontally arranged on the edge of the support base plate 2, and each set of pressure plates 3 is evenly arranged along the length direction of the support base plate 2. Multiple bolts are arranged on the pressure plate 3, and the bolts pass through the pressure plate 3 and the support base plate 2 in sequence and are connected to the cutting part 1 of the tunneling machine. A support block 4 is horizontally arranged between the pressure plate 3 and the support base plate 2. The width of the pressure plate 3 is greater than the width of the support block 4. The bottom of the pressure plate 3 and the side of the support block 4 form a sliding groove for the sliding base plate 9 to slide.

[0030] In practical use, the sliding function of temporary supports is frequently used underground, requiring assurance of stability and reliability. The limiting position of the sliding base plate 9 is crucial. The sliding base plate 9 is fixed to the upper, lower, left, and right sides by pressure plate assemblies and bolts, pressing the upper surface tightly. Furthermore, to ensure the connection between the pressure plate 3, the support base plate 2, the sliding base plate 9, and the tunneling machine cutting section 1, and the normal sliding of the sliding base plate 9 on the support base plate 2, the stability of the support pressure block 4 needs to be ensured by a pad assembly during installation; such as... Figure 7As shown, the pressure block assembly includes multiple adjusting screws 5 horizontally inserted into the support pressure block 4. The adjusting screws 5 extend through the support pressure block 4 to the area between the support pressure block 4 and the sliding base plate 9. The end of the adjusting screw 5 extending between the support pressure block 4 and the sliding base plate 9 is inserted into a side pad 6. A shim is horizontally arranged between the support pressure block 4 and the pressure plate 3. A lower pad 7 is arranged between the sliding base plate 9 and the support base plate 2. The lower pad 7 is located on the bottom of the sliding base plate 9 near the pressure plate 3 and is made of aluminum bronze graphene material, which reduces sliding friction while improving wear resistance. Two auxiliary pads 8 are also symmetrically arranged between the sliding base plate 9 and the support base plate 2, and are positioned between the two lower pads 7. The front and rear limits of the sliding base plate 9 are limited by the distance of the telescopic cylinder 14. In order to ensure the stability of the initial sliding and reduce the wear of the hydraulic cylinder, the positioning block 13 is installed on the sliding base plate and cooperates with the support base plate slot to perform secondary limiting and ensure the stability of the sliding function.

[0031] like Figure 5 and Figure 6 As shown, in this embodiment, a bottom connecting seat 10 is provided on the sliding base plate 9. The bottom connecting seat 10 is arranged at one end of the sliding base plate 9, and two lifting positioning seats 11 are symmetrically arranged at the front end of the bottom connecting seat 10. Two sliding positioning seats 12 are also symmetrically arranged on the sliding base plate 9, and the two sliding positioning seats 12 are arranged at the other end of the sliding base plate 9.

[0032] like Figure 5 and Figure 6 As shown, in this embodiment, two positioning blocks 13 are symmetrically arranged on the sliding base plate 9. The positioning blocks 13 are arranged between the lifting positioning seat 11 and the sliding positioning seat 12. Two sliding positioning seats 12 are also symmetrically arranged on the support base plate 2. The sliding positioning seats 12 on the support base plate 2 and the bottom connecting seat 10 are arranged at the same end. The central axis of the positioning blocks 13 arranged on the same side, the central axis of the sliding positioning seats 12 on the support base plate 2 and the central axis of the sliding positioning seats 12 on the sliding base plate 9 coincide. Two sliding cylinders 20 are symmetrically arranged on the sliding base plate 9 and the support base plate 2. One end of the sliding cylinder 20 is installed on the sliding positioning seat 12 of the support base plate 2, and the other end of the sliding cylinder 20 is installed on the sliding positioning seat 12 of the sliding base plate 9. The positioning block 13 is arranged in the middle of the sliding cylinder 20.

[0033] like Figure 8As shown, in this embodiment, the telescopic cylinder assembly includes a telescopic outer cylinder 17 disposed on the bottom connecting seat 10, a telescopic middle cylinder 18 disposed within the telescopic outer cylinder 17, and a telescopic inner cylinder 19 disposed within the telescopic middle cylinder 18. The bottom of the telescopic outer cylinder 17 is mounted on the bottom connecting seat 10, and the top of the telescopic inner cylinder 19 is connected to the top connecting seat 30 via a spring 31. like Figure 6 As shown, the telescopic cylinder 14 is installed inside the telescopic outer cylinder 17, and the bottom of the telescopic cylinder 14 is installed inside the bottom connecting seat 10; the bottom of the lifting cylinder 15 is installed inside the lifting positioning seat 11, and the top of the lifting cylinder 15 is connected to the top of the telescopic outer cylinder 17. The top of the lifting cylinder 15 is connected to the telescopic outer cylinder 17 through a pin.

[0034] In actual use, the telescopic outer cylinder 17 and the telescopic middle cylinder 18, as well as the telescopic middle cylinder 18 and the telescopic inner cylinder 19, are connected in a nested cylinder manner; the telescopic outer cylinder 17 and the bottom connecting seat 10 are connected by a pin. The telescopic cylinder assembly is extended by a telescopic hydraulic cylinder 14. The top of the telescopic inner cylinder 19 is connected to the top connecting seat 30 by a spring 31, which ensures that the top can adapt to some uneven surfaces during use, and is more conducive to the top support fitting snugly against the top.

[0035] like Figure 1 and Figure 2 As shown, in this embodiment, the top support frame includes two symmetrically arranged top support crossbars 21 and two symmetrically arranged top support connecting rods 22 between the two top support crossbars 21. The two top support crossbars 21 and the two top support connecting rods 22 form a closed frame structure. Two auxiliary connecting rods 23 are also symmetrically arranged inside the top support frame. The ends of the auxiliary connecting rods 23 are arranged on the top support crossbars 21, and the sides of the auxiliary connecting rods 23 are in close contact with the sides of the top support connecting rods 22. Top support lugs 35 are provided on the sides of the top support crossbars 21. The top support crossbars 21, top support connecting rods 22, and auxiliary connecting rods 23 are all hollow structures.

[0036] like Figure 2 and Figure 3As shown, in this embodiment, the side support frame includes two side support units symmetrically arranged on both sides of the top support frame. Each side support unit includes two side support crossbars 24 symmetrically inserted into the top support frame. A side support connecting rod 25 is horizontally connected between the ends of the two side support crossbars 24 extending to the outside of the top support frame. The side support connecting rod 25 is parallel to the top support crossbar 21. The two side support crossbars 24 and the side support connecting rod 25 form a U-shaped frame structure. A side extension cylinder 26 is provided in the top support frame to drive the side support crossbars 24. Of the two side support crossbars 24, one side support crossbar 24 is inserted into the top support connecting rod 22 on one side, and the other side support crossbar 24 is inserted into the auxiliary connecting rod 23 on the other side.

[0037] In actual use, in order to ensure that the side support unit can extend and retract normally, the side extension cylinder 26 used to drive the side support crossbar 24 is arranged in the corresponding top support connecting rod 22 or auxiliary connecting rod 23 along with the side support crossbar 24 on the same side.

[0038] like Figure 2 and Figure 4 As shown, in this embodiment, the front support frame includes two symmetrically arranged front support crossbars 27 passing through the top support frame. A front support connecting rod 28 is horizontally connected between the ends of the two front support crossbars 27 extending to the outside of the top support frame. The two front support crossbars 27 and the front support connecting rod 28 form a U-shaped frame structure. The front support crossbars 27 pass through the top support crossbars 21. A forward extension cylinder 29 that drives the front support frame to move is provided in the end of the top support crossbars 21 away from the front support connecting rod 28.

[0039] like Figure 9 As shown, in this embodiment, there are two angle-adjusting cylinders 16, which are symmetrically arranged on both sides of the top connecting seat 30; one end of the angle-adjusting cylinder 16 is connected to the top support ear seat 35, and the other end of the angle-adjusting cylinder 16 is connected to the connecting seat ear plate 34.

[0040] In actual use, when the angle-adjusting cylinder 16 extends under hydraulic pressure, the top support structure and the telescopic cylinder assembly form an angle, achieving the function of fitting the top horizontal plane.

[0041] The present invention also provides a method for supporting a tunneling machine using a straight-lift sliding temporary support, comprising the following steps: Step 1, activating the sliding cylinder 20 to move the sliding base plate 9 along the length of the support base plate 2, thereby moving the temporary support forward as a whole and providing support; Step 2, activating the lifting cylinder 15 to adjust the angle of the telescopic cylinder assembly by extending and retracting the lifting cylinder 15; Step 3, activating the telescopic cylinder 14 to unfold the telescopic cylinder assembly according to the tunneling height of the tunneling machine; Step 4, activating the side extension cylinder 26 and the front extension cylinder 29 to unfold the side support frame and the front support frame to support the top of the roadway.

[0042] Additionally, if unevenness occurs at the top of the roadway during the entire support process, the angle-adjusting cylinder 16 can be activated to adjust the position of the top support structure, ensuring it fits snugly against the roadway top. Subsequently, after the tunneling machine completes the excavation of this section, the temporary support is activated in reverse sequence: the sliding cylinder 20 is activated to return the sliding base plate 9 to its initial position; the side extension cylinder 26 and the forward extension cylinder 29 are activated in reverse to retract the side support frame and the forward support frame; and the telescopic cylinder 14 and the lifting cylinder 15 are activated in reverse to retract the telescopic cylinder assembly, completing the recovery of the temporary support.

[0043] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the present invention. Any simple modifications, alterations, or equivalent structural changes made to the above embodiments based on the technical essence of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A type of direct-lift sliding temporary support for tunneling machines, characterized in that: The system includes a sliding base slidably mounted on the cutting section (1) of the tunneling machine, a temporary support telescopic structure mounted on the sliding base, and a top support structure mounted on top of the temporary support telescopic structure. The sliding base is connected to the cutting section (1) of the tunneling machine via a support base plate (2), and the support base plate (2) is mounted on the cutting section (1) of the tunneling machine via a pressure plate assembly. The temporary support telescopic structure and the top support structure are connected by an angle adjustment assembly. The sliding base includes a sliding base plate (9) horizontally disposed on the support base plate (2), and the sliding base plate (9) and the support base plate (2) are slidably connected by a sliding cylinder (20); The temporary support telescopic structure includes a telescopic cylinder assembly installed on the sliding base plate (9), a telescopic cylinder (14) is installed inside the telescopic cylinder assembly, a lifting cylinder (15) is installed at the bottom of the telescopic cylinder assembly to drive the telescopic cylinder assembly to lift or fall, and an angle adjustment cylinder (16) is installed at the top of the telescopic cylinder assembly to drive the top support structure to adjust its angle. The top support structure includes a top support frame disposed on the top of the telescopic cylinder assembly, side support frames slidably disposed on both sides of the top support frame, and a front support frame slidably disposed at the front end of the top support frame. The angle adjustment assembly includes a top connecting seat (30) disposed at the top of the telescopic cylinder assembly and at the connection between the top support frame and the top support frame. Both ends of the top connecting seat (30) are provided with connecting seat ear plates (34). A pressure cover (32) is horizontally disposed inside the top support frame. The pressure cover (32) is parallel to the top support connecting rod (22). Two connecting ears (33) are symmetrically disposed at the bottom of the pressure cover (32). The top connecting seat (30) is hinged to the connecting ears (33) by a pin.

2. The direct-lift sliding temporary support for a tunneling machine according to claim 1, characterized in that: The pressure plate assembly includes two sets of pressure plates (3) symmetrically arranged on the support base plate (2). Both sets of pressure plates (3) are horizontally arranged on the edge of the support base plate (2), and each set of pressure plates (3) is evenly arranged along the length direction of the support base plate (2). Multiple bolts are arranged on the pressure plate (3), and the bolts pass through the pressure plate (3) and the support base plate (2) in sequence and are connected to the cutting part (1) of the tunneling machine. A support block (4) is horizontally arranged between the pressure plate (3) and the support base plate (2). The width of the pressure plate (3) is greater than the width of the support block (4). The bottom of the pressure plate (3) and the side of the support block (4) form a sliding groove for the sliding base plate (9) to slide.

3. The direct-lift sliding temporary support for a tunneling machine according to claim 1, characterized in that: The sliding base plate (9) is provided with a bottom connecting seat (10), which is located at one end of the sliding base plate (9). Two lifting positioning seats (11) are symmetrically arranged at the front end of the bottom connecting seat (10). Two sliding positioning seats (12) are also symmetrically arranged on the sliding base plate (9), which are located at the other end of the sliding base plate (9).

4. A direct-lift sliding temporary support for a tunneling machine according to claim 3, characterized in that: Two positioning blocks (13) are symmetrically arranged on the sliding base plate (9). The positioning blocks (13) are arranged between the lifting positioning seat (11) and the sliding positioning seat (12). Two sliding positioning seats (12) are also symmetrically arranged on the support base plate (2). The sliding positioning seats (12) on the support base plate (2) and the bottom connecting seat (10) are arranged at the same end. The central axis of the positioning block (13) arranged on the same side, the central axis of the sliding positioning seat (12) on the support base plate (2) and the central axis of the sliding positioning seat (12) on the sliding base plate (9) coincide. Two sliding cylinders (20) are symmetrically arranged on the sliding base plate (9) and the support base plate (2). One end of the sliding cylinder (20) is installed on the sliding positioning seat (12) of the support base plate (2), and the other end of the sliding cylinder (20) is installed on the sliding positioning seat (12) of the sliding base plate (9). The positioning block (13) is arranged in the middle of the sliding cylinder (20).

5. A direct-lift sliding temporary support for a tunneling machine according to claim 4, characterized in that: The telescopic cylinder assembly includes a telescopic outer cylinder (17) disposed on a bottom connecting seat (10), a telescopic middle cylinder (18) disposed inside the telescopic outer cylinder (17), and a telescopic inner cylinder (19) disposed inside the telescopic middle cylinder (18). The bottom of the telescopic outer cylinder (17) is mounted on the bottom connecting seat (10), and the top of the telescopic inner cylinder (19) is connected to the top connecting seat (30) by a spring (31). The telescopic cylinder (14) is installed inside the telescopic outer cylinder (17), and the bottom of the telescopic cylinder (14) is installed inside the bottom connecting seat (10); the bottom of the lifting cylinder (15) is installed inside the lifting positioning seat (11), the top of the lifting cylinder (15) is connected to the top of the telescopic outer cylinder (17), and the top of the lifting cylinder (15) is connected to the telescopic outer cylinder (17) through a pin.

6. A direct-lift sliding temporary support for a tunneling machine according to claim 1, characterized in that: The top support frame includes two symmetrically arranged top support crossbars (21) and two symmetrically arranged top support connecting rods (22) between the two top support crossbars (21). The two top support crossbars (21) and the two top support connecting rods (22) form a closed frame structure. Two auxiliary connecting rods (23) are also symmetrically arranged inside the top support frame. The ends of the auxiliary connecting rods (23) are arranged on the top support crossbars (21), and the sides of the auxiliary connecting rods (23) and the sides of the top support connecting rods (22) are in close contact. Top support lugs (35) are provided on the sides of the top support crossbars (21). The top support crossbars (21), the top support connecting rods (22), and the auxiliary connecting rods (23) are all hollow structures.

7. A direct-lift sliding temporary support for a tunneling machine according to claim 6, characterized in that: The side support frame includes two side support units symmetrically arranged on both sides of the top support frame. Each side support unit includes two side support crossbars (24) symmetrically inserted into the top support frame. A side support connecting rod (25) is horizontally connected between the ends of the two side support crossbars (24) extending to the outside of the top support frame. The side support connecting rod (25) and the top support crossbar (21) are parallel. The two side support crossbars (24) and the side support connecting rod (25) form a U-shaped frame structure. A side extension cylinder (26) is provided in the top support frame to drive the side support crossbars (24) to move. Of the two side support crossbars (24), one side support crossbar (24) is inserted into the top support connecting rod (22) on one side, and the other side support crossbar (24) is inserted into the auxiliary connecting rod (23) on the other side.

8. A direct-lift sliding temporary support for a tunneling machine according to claim 7, characterized in that: The front support frame includes two symmetrical front support crossbars (27) passing through the top support frame. A front support connecting rod (28) is horizontally connected between the ends of the two front support crossbars (27) extending to the outside of the top support frame. The two front support crossbars (27) and the front support connecting rod (28) form a U-shaped frame structure. The front support crossbars (27) pass through the top support crossbars (21). A forward extension cylinder (29) that drives the front support frame to move is provided in the end of the top support crossbars (21) away from the front support connecting rod (28).

9. A direct-lift sliding temporary support for a tunneling machine according to claim 6, characterized in that: There are two angle-adjusting cylinders (16), and the two angle-adjusting cylinders (16) are symmetrically arranged on both sides of the top connecting seat (30); one end of the angle-adjusting cylinder (16) is connected to the top support ear seat (35), and the other end of the angle-adjusting cylinder (16) is connected to the ear plate (34) of the connecting seat.

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