A hydraulically driven temporary support ring rod

Abstract

The present invention provides a hydraulically driven temporary support annular rod, which relates to the field of tunnel construction. The hydraulically driven temporary support annular rod comprises a first hydraulic annular rod, a connecting body, and a second hydraulic annular rod. The connection structure of the first hydraulic annular rod is consistent with that of the second hydraulic annular rod, and both are connected to the front and rear side walls of the connecting body. The first hydraulic annular rod comprises an annular outer cylinder and an annular piston rod. The annular piston rod is slidably connected to the inner surface of the annular outer cylinder. A side groove is provided between the upper side wall and the left side wall of the connecting body. Through the hydraulic annular rod that can rotate independently and can be telescopic, after being supported by the hydraulic telescopic rod, the hydraulically driven temporary support annular rod can fully meet the construction requirements of the tunnel. The horizontal or longitudinal rods can be connected at the second elastic ring and the third elastic ring to realize the connection of multiple hydraulically driven temporary support annular rods, which is very convenient and has three connection methods for the initial support arch connection end.

Description

Technical Field

[0001] The invention relates to the field of tunnel construction, in particular to a hydraulically driven temporary supporting ring rod. Background Art

[0002] Double sidewall pilot tunnel method is a method of tunnel excavation. It is also called double sidewall pilot tunnel method or glasses method. It is a branch of the New Austrian Tunneling Method (NATM) and is based on the basic principles of the New Austrian Tunneling Method (NATM). During construction, temporary support structures are required. Temporary supports play a role in sharing the initial support load during their normal service stage, but they need to be removed before the secondary lining is constructed after the initial support is closed. The annular support rods in the existing temporary support bodies are made directly of steel, which is relatively bulky and difficult to install and disassemble during the construction process, increasing the difficulty of construction. Summary of the invention

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies in the prior art, the present invention provides a hydraulically driven temporary supporting annular rod, which solves the problem that the existing annular supporting rods made of steel are inconvenient to carry, install and disassemble.

[0005] (II) Technical solution

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a hydraulically driven temporary support annular rod, comprising a first hydraulic annular rod, a connecting body, and a second hydraulic annular rod. The connection structure of the first hydraulic annular rod and the second hydraulic annular rod is consistent, and both are connected to the front and rear side walls of the connecting body. The first hydraulic annular rod comprises an annular outer cylinder and an annular piston rod. The annular piston rod is slidably connected to the inner surface of the annular outer cylinder. A side groove is provided between the upper side wall and the left side wall of the connecting body. The lower end of the annular outer cylinder passes through the side groove and is rotatably connected to the front and rear side walls of the connecting body. A half gear is fixedly connected to the lower end surface of the annular outer cylinder, and an auxiliary gear is rotatably connected to the rear side wall of the connecting body. A motor is provided on the rear side of the connecting body, and one end of the output shaft of the motor passes through the rear side wall of the connecting body and is fixedly connected to a driving gear. The upper surface of the connecting body and the right side of the side groove are fixedly connected to a limited baffle, and the left side of the limited baffle is provided with an elastic sheet, the right side wall of the connecting body is provided with a first elastic ring, and the left side wall of the connecting body is provided with a second elastic ring. The left side of the connecting body is fixedly connected to a fixed block, and the upper surface of the fixed block is fixedly connected to a first connecting seat. The front and rear side walls of the connecting body are provided with a third elastic ring, and one end of the annular piston rod extending out of the annular outer cylinder is fixedly connected to a connecting head, and a hydraulic telescopic rod is rotatably connected between the connecting head and the first connecting seat.

[0007] Preferably, the output shaft of the motor is rotatably connected to the rear side wall of the connector, the driving gear is meshed with the auxiliary gear, and the auxiliary gear is meshed with the half gear.

[0008] Preferably, a through hole is provided in the middle of the fixing block, and the through hole has the same radius as the first elastic ring and the second elastic ring and is coaxial.

[0009] Preferably, the elastic sheet, the first elastic ring, the second elastic ring and the third elastic ring are all made of rubber.

[0010] Preferably, the upper and lower sides of the connector are symmetrical in structure, and the auxiliary gear, driving gear and motor corresponding to the first hydraulic annular rod and the second hydraulic annular rod form an angle of 180° and are located on both sides of the third elastic ring.

[0011] Preferably, the end of the annular piston rod located above the connecting head is fixedly connected to a second connecting seat, and the inner pin of the second connecting seat is connected to the first primary support arch connecting end.

[0012] Preferably, the end of the annular piston rod located above the connecting head is flat and is slidably connected to the second primary support arch connecting end.

[0013] Preferably, the end of the annular piston rod located above the connecting head is fixedly connected to a connecting plate, the connecting plate includes two pieces and is fixedly connected by bolts, and the left side of the connecting plate away from the annular piston rod is fixedly connected to the third primary support arch connection end.

[0014] Working principle: put the hydraulic telescopic rod in a relaxed state, start the motor, the motor drives the driving gear, the driving gear drives the auxiliary gear through the meshing relationship to push the half gear to rotate, thereby realizing the rotation of the first hydraulic annular rod or the second hydraulic annular rod. After the first hydraulic annular rod or the second hydraulic annular rod contacts and compresses the elastic sheet, the annular piston rod extends from the annular outer tube, and then the hydraulic telescopic rod provides hydraulic pressure to complete the support. The first hydraulic annular rod and the second hydraulic annular rod can be used at different times. After contraction on both sides, the annular outer tube slides into the side groove.

[0015] (III) Beneficial effects

[0016] The present invention provides a hydraulically driven temporary support annular rod. It has the following beneficial effects:

[0017] 1. In the present invention, the two hydraulic annular rods can be retracted and stretched to meet the construction needs after being extended. The second elastic ring and the third elastic ring can be connected to the horizontal or vertical rods to realize the connection of multiple hydraulically driven temporary support annular rods, which is very convenient.

[0018] 2. The present invention uses a motor to drive a series of gears to rotate the two hydraulic annular rods. The two hydraulic annular rods can rotate and move independently, and then a hydraulic telescopic rod is used for support, thereby improving the supporting force of the overall structure.

[0019] 3. The present invention has three connection methods for the connection ends of the initial support arch frame. All three methods can meet the connection requirements of the initial support arch frame, and are convenient to connect and operate, and can be easily disassembled after use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front view of the present invention;

[0021] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0022] Figure 3 It is a side view of the connector of the present invention;

[0023] Figure 4 It is a connection schematic diagram of the first primary support arch connection end of the present invention;

[0024] Figure 5 It is a connection schematic diagram of the second primary support arch connection end of the present invention;

[0025] Figure 6 It is a connection schematic diagram of the third primary support arch connection end of the present invention.

[0026] Among them, 1. the first hydraulic circumferential rod; 2. the circumferential outer cylinder; 3. the elastic sheet; 4. the limit baffle; 5. the first elastic ring; 6. the connecting body; 7. the second hydraulic circumferential rod; 8. the second elastic ring; 9. the through hole; 10. the fixing block; 11. the first connecting seat; 12. the side groove; 13. the connecting head; 14. the circumferential piston rod; 15. the half gear; 16. the auxiliary gear; 17. the driving gear; 18. the third elastic ring; 19. the motor; 20. the first primary support arch frame connecting end; 21. the second connecting seat; 22. the second primary support arch frame connecting end; 23. the third primary support arch frame connecting end; 24. the connecting plate; 25. the bolt; 26. the hydraulic telescopic rod. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Embodiment 1:

[0029] like Figure 1, 2 As shown in Figures 3 and 4, an embodiment of the present invention provides a hydraulically driven temporary support annular rod, comprising a first hydraulic annular rod 1, a connecting body 6, and a second hydraulic annular rod 7. The connection structure of the first hydraulic annular rod 1 is consistent with that of the second hydraulic annular rod 7, and both are connected to the front and rear side walls of the connecting body 6. The first hydraulic annular rod 1 comprises an annular outer tube 2 and an annular piston rod 14. The annular piston rod 14 is slidably connected to the inner surface of the annular outer tube 2. A side groove 12 is provided between the upper side wall and the left side wall of the connecting body 6. The lower end of the annular outer tube 2 passes through the side groove 12 and is rotatably connected to the front and rear side walls of the connecting body 6. A half gear 15 is fixedly connected to the lower end surface of the annular outer tube 2. An auxiliary gear 16 is rotatably connected to the rear side wall of the connecting body 6. A motor 19 is provided on the rear side surface of the connecting body 6 for rotating the first hydraulic annular rod 1 or the second hydraulic annular rod 7. The output shaft of the motor 19 passes through one end of the rear side wall of the connecting body 6 and is fixedly connected to a driving gear 17. The upper surface of the connecting body 6 and the right side of the side groove 12 are fixedly connected to a limit baffle 4. The left side of the limit baffle 4 is provided with an elastic sheet 3 to prevent the first hydraulic annular rod 1 and the second hydraulic annular rod 7 from directly contacting and wearing the limit baffle 4. The right side wall of the connecting body 6 is provided with a first elastic ring 5, the left side wall of the connecting body 6 is provided with a second elastic ring 8, the left side of the connecting body 6 is fixedly connected to a fixed block 10, the upper surface of the fixed block 10 is fixedly connected to a first connecting seat 11, the front and rear side walls of the connecting body 6 are provided with a third elastic ring 18, and one end of the annular piston rod 14 extending out of the annular outer cylinder 2 is fixedly connected to a connecting head 13, and a hydraulic telescopic rod 26 is rotatably connected between the connecting head 13 and the first connecting seat 11.

[0030] The output shaft of the motor 19 is rotatably connected to the rear side wall of the connecting body 6 , the driving gear 17 is meshed with the auxiliary gear 16 , and the auxiliary gear 16 is meshed with the half gear 15 .

[0031] A through hole 9 is provided in the middle of the fixing block 10 . The through hole 9 has the same radius as the first elastic ring 5 and the second elastic ring 8 and is coaxial.

[0032] The elastic sheet 3, the first elastic ring 5, the second elastic ring 8 and the third elastic ring 18 are all made of rubber.

[0033] The upper and lower sides of the connecting body 6 are symmetrical in structure. The auxiliary gear 16 , the driving gear 17 , and the motor 19 corresponding to the first hydraulic annular rod 1 and the second hydraulic annular rod 7 form an angle of 180° and are located on both sides of the third elastic ring 18 .

[0034] The end of the annular piston rod 14 located above the connecting head 13 is fixedly connected to the second connecting seat 21 , and the inner side pin of the second connecting seat 21 is connected to the first primary supporting arch connecting end 20 .

[0035] Embodiment 2:

[0036] like Figure 1 , 2 As shown in Figures 3 and 5, an embodiment of the present invention provides a hydraulically driven temporary support annular rod, comprising a first hydraulic annular rod 1, a connecting body 6, and a second hydraulic annular rod 7. The connection structure of the first hydraulic annular rod 1 is consistent with that of the second hydraulic annular rod 7, and both are connected to the front and rear side walls of the connecting body 6. The first hydraulic annular rod 1 comprises an annular outer cylinder 2 and an annular piston rod 14. The annular piston rod 14 is slidably connected to the inner surface of the annular outer cylinder 2. A side groove 12 is provided between the upper side wall and the left side wall of the connecting body 6. The lower end of the annular outer cylinder 2 passes through the side groove 12 and is rotatably connected to the front and rear side walls of the connecting body 6. A half gear 15 is fixedly connected to the lower end surface of the annular outer cylinder 2. An auxiliary gear 16 is rotatably connected to the rear side wall of the connecting body 6. A motor 19 is provided on the rear side surface of the connecting body 6 for rotating the first hydraulic annular rod 1 or the second hydraulic annular rod 7. The output shaft of the motor 19 passes through one end of the rear side wall of the connecting body 6 and is fixedly connected to a driving gear 17. The upper surface of the connecting body 6 and the right side of the side groove 12 are fixedly connected to a limit baffle 4. The left side of the limit baffle 4 is provided with an elastic sheet 3 to prevent the first hydraulic annular rod 1 and the second hydraulic annular rod 7 from directly contacting and wearing the limit baffle 4. The right side wall of the connecting body 6 is provided with a first elastic ring 5, the left side wall of the connecting body 6 is provided with a second elastic ring 8, the left side of the connecting body 6 is fixedly connected to a fixed block 10, the upper surface of the fixed block 10 is fixedly connected to a first connecting seat 11, the front and rear side walls of the connecting body 6 are provided with a third elastic ring 18, and one end of the annular piston rod 14 extending out of the annular outer cylinder 2 is fixedly connected to a connecting head 13, and a hydraulic telescopic rod 26 is rotatably connected between the connecting head 13 and the first connecting seat 11.

[0037] The output shaft of the motor 19 is rotatably connected to the rear side wall of the connecting body 6 , the driving gear 17 is meshed with the auxiliary gear 16 , and the auxiliary gear 16 is meshed with the half gear 15 .

[0038] A through hole 9 is provided in the middle of the fixing block 10 . The through hole 9 has the same radius as the first elastic ring 5 and the second elastic ring 8 and is coaxial.

[0039] The elastic sheet 3, the first elastic ring 5, the second elastic ring 8 and the third elastic ring 18 are all made of rubber.

[0040] The upper and lower sides of the connecting body 6 are symmetrical in structure. The auxiliary gear 16 , the driving gear 17 , and the motor 19 corresponding to the first hydraulic annular rod 1 and the second hydraulic annular rod 7 form an angle of 180° and are located on both sides of the third elastic ring 18 .

[0041] The end of the annular piston rod 14 located above the connecting head 13 is flat and is slidably connected to the second primary support arch connecting end 22 .

[0042] Embodiment three:

[0043] like Figure 1 , 2 As shown in Figures 3 and 6, an embodiment of the present invention provides a hydraulically driven temporary support annular rod, comprising a first hydraulic annular rod 1, a connecting body 6, and a second hydraulic annular rod 7. The connection structure of the first hydraulic annular rod 1 is consistent with that of the second hydraulic annular rod 7, and both are connected to the front and rear side walls of the connecting body 6. The first hydraulic annular rod 1 comprises an annular outer tube 2 and an annular piston rod 14. The annular piston rod 14 is slidably connected to the inner surface of the annular outer tube 2. A side groove 12 is provided between the upper side wall and the left side wall of the connecting body 6. The lower end of the annular outer tube 2 passes through the side groove 12 and is rotatably connected to the front and rear side walls of the connecting body 6. A half gear 15 is fixedly connected to the lower end surface of the annular outer tube 2. An auxiliary gear 16 is rotatably connected to the rear side wall of the connecting body 6. A motor 19 is provided on the rear side surface of the connecting body 6 for rotating the first hydraulic annular rod 1 or the second hydraulic annular rod 7. The output shaft of the motor 19 passes through one end of the rear side wall of the connecting body 6 and is fixedly connected to a driving gear 17. The upper surface of the connecting body 6 and the right side of the side groove 12 are fixedly connected to a limit baffle 4. The left side of the limit baffle 4 is provided with an elastic sheet 3 to prevent the first hydraulic annular rod 1 and the second hydraulic annular rod 7 from directly contacting and wearing the limit baffle 4. The right side wall of the connecting body 6 is provided with a first elastic ring 5, the left side wall of the connecting body 6 is provided with a second elastic ring 8, the left side of the connecting body 6 is fixedly connected to a fixed block 10, the upper surface of the fixed block 10 is fixedly connected to a first connecting seat 11, the front and rear side walls of the connecting body 6 are provided with a third elastic ring 18, and one end of the annular piston rod 14 extending out of the annular outer cylinder 2 is fixedly connected to a connecting head 13, and a hydraulic telescopic rod 26 is rotatably connected between the connecting head 13 and the first connecting seat 11.

[0044] The output shaft of the motor 19 is rotatably connected to the rear side wall of the connecting body 6 , the driving gear 17 is meshed with the auxiliary gear 16 , and the auxiliary gear 16 is meshed with the half gear 15 .

[0045] A through hole 9 is provided in the middle of the fixing block 10 . The through hole 9 has the same radius as the first elastic ring 5 and the second elastic ring 8 and is coaxial.

[0046] The elastic sheet 3, the first elastic ring 5, the second elastic ring 8 and the third elastic ring 18 are all made of rubber.

[0047] The upper and lower sides of the connecting body 6 are symmetrical in structure. The auxiliary gear 16 , the driving gear 17 , and the motor 19 corresponding to the first hydraulic annular rod 1 and the second hydraulic annular rod 7 form an angle of 180° and are located on both sides of the third elastic ring 18 .

[0048] The end of the annular piston rod 14 located above the connecting head 13 is fixedly connected to a connecting plate 24, which includes two pieces and is fixedly connected by bolts 25. The left side of the connecting plate 24 away from the annular piston rod 14 is fixedly connected to the third primary support arch connecting end 23.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulically driven temporary support annular rod, comprising a first hydraulic annular rod (1), a connecting body (6), and a second hydraulic annular rod (7), characterized in that: The connection structure of the first hydraulic annular rod (1) and the second hydraulic annular rod (7) is consistent, and both are connected to the front and rear side walls of the connecting body (6). The first hydraulic annular rod (1) comprises an annular outer tube (2) and an annular piston rod (14). The annular piston rod (14) is slidably connected to the inner surface of the annular outer tube (2). A side groove (12) is provided between the upper side wall and the left side wall of the connecting body (6). The lower end of the annular outer tube (2) passes through the side groove (12) and is rotatably connected to the front and rear side walls of the connecting body (6). A half gear (15) is fixedly connected to the lower end surface of the annular outer tube (2). The rear side wall of the connecting body (6) is rotatably connected to an auxiliary gear (16). A motor (19) is provided on the rear side surface of the connecting body (6). The output shaft of the motor (19) passes through the rear side wall of the connecting body (6). One end of the connecting body (6) is fixedly connected to a driving gear (17); a limit baffle (4) is fixedly connected to the upper surface of the connecting body (6) and located on the right side of the side groove (12); an elastic sheet (3) is provided on the left side of the limit baffle (4); a first elastic ring (5) is provided on the right side wall of the connecting body (6); a second elastic ring (8) is provided on the left side wall of the connecting body (6); a fixed block (10) is fixedly connected to the left side of the connecting body (6); a first connecting seat (11) is fixedly connected to the upper surface of the fixed block (10); a third elastic ring (18) is provided on the front and rear side walls of the connecting body (6); one end of the annular piston rod (14) extending out of the annular outer cylinder (2) is fixedly connected to a connecting head (13); a hydraulic telescopic rod (26) is rotatably connected between the connecting head (13) and the first connecting seat (11); The output shaft of the motor (19) is rotatably connected to the rear side wall of the connecting body (6), the driving gear (17) is meshed with the auxiliary gear (16), and the auxiliary gear (16) is meshed with the half gear (15); A through hole (9) is provided in the middle of the fixing block (10); the through hole (9) has the same radius as the first elastic ring (5) and the second elastic ring (8), and is coaxial.

2. A hydraulically driven temporary support ring rod according to claim 1, characterized in that: The elastic sheet (3), the first elastic ring (5), the second elastic ring (8) and the third elastic ring (18) are all made of rubber.

3. The hydraulically driven temporary support ring rod according to claim 1, characterized in that: The connecting body (6) has symmetrical structures on the upper and lower sides; the auxiliary gear (16), the driving gear (17), and the motor (19) corresponding to the first hydraulic annular rod (1) and the second hydraulic annular rod (7) form an angle of 180 degrees and are located on both sides of the third elastic ring (18).

4. The hydraulically driven temporary support ring rod according to claim 1, characterized in that: The end of the annular piston rod (14) located above the connecting head (13) is fixedly connected to a second connecting seat (21), and the inner pin of the second connecting seat (21) is connected to a first primary support arch connecting end (20).

5. The hydraulically driven temporary support ring rod according to claim 1, characterized in that: The end of the annular piston rod (14) located above the connecting head (13) is flat and is slidably connected to the second primary support arch connecting end (22).

6. The hydraulically driven temporary support ring rod according to claim 1, characterized in that: The end of the annular piston rod (14) located above the connecting head (13) is fixedly connected to a connecting plate (24), wherein the connecting plate (24) comprises two pieces and is fixedly connected by bolts (25), and the left side surface of the connecting plate (24) away from the annular piston rod (14) is fixedly connected to the third primary support arch connecting end (23).

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