Counter-force support for stepping oil cylinder

Abstract

The utility model provides a counter-force support for a stepping oil cylinder, and relates to the technical field of constructional engineering construction.The counter-force support is characterized in that lug plates are arranged on the upper surface of a supporting plate and connected with the stepping oil cylinder, side plates are arranged at the two ends of the lower surface of the supporting plate, through holes corresponding to steel rail limiting holes are formed in the side plates, and the inner ends of lock pins are inserted into the through holes and / or the limiting holes; the telescopic mechanism is arranged on the side plate, the moving end of the telescopic mechanism is connected with the outer end of the lock pin so as to drive the lock pin to move, when the lock pin is inserted into the limiting hole, the counter-force support is fixed to the steel rail, at the moment, the stepping oil cylinder extends to push the shield tunneling machine tool bit to move, and when the lock pin is pulled out of the limiting hole, the counter-force support is separated from the steel rail, and at the moment, the stepping oil cylinder is shortened to push the shield tunneling machine tool bit to move. The counter-force support is pulled to move relative to the steel rail, the position is automatically adjusted, the stepping oil cylinder counter-force support can be automatically connected with or separated from the steel rail, manual operation is not needed, and the construction efficiency is greatly improved.

Description

Technical Field

[0001] The present application relates to the technical field of building engineering construction, and in particular to a reaction force support for a stepping cylinder. Background Art

[0002] TBM hard rock tunnel boring machine is a special engineering machinery for tunnel excavation. It has the functions of excavating and cutting soil, conveying mud and assembling tunnel lining, etc. It has been widely used in tunnel projects such as subway, highway, railway, municipal, hydropower, etc. Conventional TBM tunnel boring machine is suitable for flat tunnel with a slope of ±5%. The assembly stepping method is easy to adopt guide wheels, sliding membranes, etc. For inclined shaft TBM construction, the inclination angle is large, the diameter is large, and the weight is large. The inclined shaft TBM assembly stepping needs to design a stepping cylinder support.

[0003] The existing stepper cylinder supports are operated manually or partially manually during step conversion. For example, a locking pin type stepper cylinder support requires the locking pin to be inserted and pulled out after each movement. In this way, fully automated operation cannot be achieved during construction, which increases the cost of construction operations and safety protection facilities and affects the improvement of construction efficiency. Utility Model Content

[0004] The embodiment of the present application provides a reaction force support for a stepping cylinder, which can automatically connect or separate from a rail without manual operation, thereby greatly improving construction efficiency and solving the problem that existing stepping cylinder supports have a low degree of automation and require manual or partially manual operation, resulting in low construction efficiency.

[0005] The embodiment of the present application provides a reaction force support for a stepping oil cylinder, the reaction force support is arranged on a steel rail, the steel rail is provided with a limiting hole, a plurality of the limiting holes are equidistantly distributed along the extension direction of the steel rail, the reaction force support comprises a base, an ear plate for connecting the stepping oil cylinder, and a locking pin assembly for connecting the steel rail;

[0006] The base includes a support plate and a side plate, the two side plates are respectively fixed at the two ends of the lower surface of the support plate, the ear plate is fixed on the upper surface of the support plate, the side plate is provided with a through hole corresponding to the limiting hole, the two locking pin assemblies are respectively arranged on the two side plates, and the locking pin assemblies are plugged into the through hole and / or the limiting hole;

[0007] The locking pin assembly includes a locking pin matching the limiting hole and a telescopic mechanism for driving the locking pin to move. The telescopic mechanism is arranged on the side plate, the moving end of the telescopic mechanism is connected to the outer end of the locking pin, and the inner end of the locking pin is inserted into the through hole and / or the limiting hole.

[0008] In a feasible implementation, the locking pin assembly further includes a connecting cylinder and a sliding block;

[0009] The connecting tube is fixed on the side plate, the connecting tube is connected with the through hole, and the inner diameter of the connecting tube matches the diameter of the through hole, and the locking pin is plugged into the connecting tube;

[0010] The side wall of the connecting tube is provided with a sliding groove, the sliding block is slidably connected to the sliding groove, the inner end of the sliding block is connected to the outer end outer wall of the locking pin, and the outer end of the sliding block is connected to the moving end of the telescopic mechanism.

[0011] In a feasible implementation, the locking pin assembly further includes a spring and a clamping plate;

[0012] The spring is arranged in the connecting tube, and the two ends of the spring are respectively in contact with the inner wall of the outer end of the connecting tube and the outer wall of the outer end of the locking pin, and the spring is always in a compressed state;

[0013] The clamping plate is fixedly arranged at the moving end of the telescopic mechanism, the side of the slider facing the side plate is a connecting surface, and the clamping plate is clamped with the connecting surface of the slider.

[0014] In a feasible implementation, the locking pin assembly further includes a limiting rod;

[0015] The limiting rod is fixed on the side plate, and the extending direction of the limiting rod is consistent with the moving direction of the telescopic mechanism;

[0016] The clamping plate is provided with a limiting hole, and the limiting rod is inserted with the limiting hole.

[0017] In a feasible implementation, the locking pin assembly further includes a buffer block;

[0018] The buffer block is fixedly arranged at the inner end of the slide groove, and the sliding block abuts against the buffer block.

[0019] In a feasible implementation, the inner end of the locking pin is provided with a conical head.

[0020] In a feasible implementation, a groove body is provided on the lower surface of the support plate, and sliding rollers are provided in the groove body. A plurality of the sliding rollers are slidably connected to the upper surface of the rail.

[0021] In a feasible implementation, the two ear plates are arranged in parallel on the upper surface of the support plate, the stepping cylinder is arranged between the two ear plates, an axial hole is provided on the ear plate, and the stepping cylinder is connected to the two ear plates through a rotating shaft locking pin.

[0022] In a feasible implementation, the reaction support further includes a first reinforcement plate;

[0023] The outer walls of the two ear plates are each provided with a plurality of the first reinforcing plates, the bottom ends of the first reinforcing plates are fixedly connected to the support plate, and the ear plates, the first reinforcing plates and the support plate are perpendicular to each other.

[0024] In a feasible implementation, the reaction support further includes a second reinforcement plate;

[0025] The plurality of second reinforcing plates correspond one-to-one to the plurality of first reinforcing plates, the second reinforcing plates are fixedly arranged on the outer wall of the side plate, and the top ends of the second reinforcing plates are fixedly connected to the bottom ends of the corresponding first reinforcing plates.

[0026] The embodiment of the present application provides a reaction force support for a stepping cylinder, by providing an ear plate on the upper surface of a support plate, the ear plate is connected to the stepping cylinder, side plates are provided at both ends of the lower surface of the support plate, through holes corresponding to the limiting holes of the rail are provided on the side plates, the inner end of the locking pin is plugged into the through hole and / or the limiting hole, the telescopic mechanism is provided on the side plate, the moving end of the telescopic mechanism is connected to the outer end of the locking pin, thereby driving the locking pin to move, when the locking pin is plugged into the limiting hole, the reaction force support is fixed on the rail, at this time the stepping cylinder is extended, which can push the shield machine cutter head to move, when the locking pin is pulled out of the limiting hole, the reaction force support is separated from the rail, at this time the stepping cylinder is shortened, and the reaction force support is pulled to move relative to the rail, and the position is automatically adjusted. The reaction force support of the stepping cylinder provided in the present application can be automatically connected or separated from the rail without manual operation, thereby greatly improving the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of a reaction force support for a stepping cylinder provided in the present application;

[0028] Figure 2 is the side view of the reaction support;

[0029] Figure 3 It is a schematic diagram of the reaction support and the rail being separated;

[0030] Figure 4 It is a schematic diagram of the connection status between the reaction support and the rail.

[0031] Description of reference numerals:

[0032] 10-base; 20-ear plate; 30-locking pin assembly; 40-first reinforcing plate; 50-second reinforcing plate;

[0033] 11- support plate; 12- side plate; 13- through hole; 14- trough body; 15- sliding roller; 31- locking pin; 32- telescopic mechanism; 33- connecting cylinder; 34- slide groove; 35- slider; 36- spring; 37- clamping plate; 38- limiting rod; 39- buffer block. DETAILED DESCRIPTION

[0034] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work should fall within the scope of protection of the present application.

[0035] The step-by-step hydraulic synchronous jacking and sliding technology is a construction technology for overall sliding or cumulative sliding installation of structures. It uses sliding reaction force supports, connecting lugs, and sliding main push cylinders to push components. It adopts the control synchronization principle of electrical and hydraulic control systems. After assembling hundreds or thousands of tons of components on the tooling platform, they are slid to the predetermined position along the horizontal track in a step-by-step jacking manner and installed in place. This method has been promoted and applied at home and abroad.

[0036] The existing stepper cylinder supports are operated manually or partially manually during step conversion, and cannot achieve fully automated operation during construction, which increases the cost of construction operations and safety protection facilities and affects the improvement of construction efficiency. The reaction force support provided in the present application can automatically connect or separate from the rail without manual operation, greatly improving the construction efficiency and solving the problem that the existing stepper cylinder supports have a low degree of automation and require manual or partially manual operation, resulting in low construction efficiency.

[0037] The specific structure of the reaction force support for the stepping cylinder provided in the present application is described in detail below in conjunction with the accompanying drawings.

[0038] Reference Figure 1-Figure 4 As shown, the embodiment of the present application provides a reaction force support for a stepping cylinder, the reaction force support is arranged on a rail, a limiting hole is arranged on the rail, and a plurality of limiting holes are equidistantly distributed along the extension direction of the rail, the reaction force support includes a base 10, an ear plate 20 for connecting the stepping cylinder, and a locking pin assembly 30 for connecting the rail;

[0039] The base 10 includes a support plate 11 and a side plate 12. The two side plates 12 are respectively fixed at the two ends of the lower surface of the support plate 11. The support plate 11 and the two side plates 12 form a U-shaped structure. The support plate 11 and the side plates 12 are made of metal and can be an integrated structure. The ear plate 20 is fixed on the upper surface of the support plate 11, and the stepping cylinder is rotatably connected to the ear plate 20 through a rotating shaft.

[0040] The opposite surfaces of the two side plates 12 are respectively engaged with the outer walls of the two sides of the rail, and the side plates 12 are provided with through holes 13 corresponding to the limiting holes. Two locking pin assemblies 30 are respectively arranged on the two side plates 12, and the locking pin assemblies 30 are inserted into the through holes 13 and / or the limiting holes;

[0041] The locking pin assembly 30 includes a locking pin 31 that matches the limiting hole and a telescopic mechanism 32 that drives the locking pin 31 to move. The locking pin 31 can be a metal rod body. The telescopic mechanism 32 is arranged on the side plate 12. The moving end of the telescopic mechanism 32 is connected to the outer end of the locking pin 31, and the inner end of the locking pin 31 is inserted into the through hole 13 and / or the limiting hole.

[0042] During operation, the telescopic mechanism 32 drives the locking pin 31 to move toward the rail side, so that the inner end of the locking pin 31 passes through the through hole 13 and is plugged into the limiting hole on the rail to fix the reaction force support on the rail. At this time, the stepping cylinder extends to push the head of the shield machine to move. After the head moves, the telescopic mechanism 32 drives the locking pin 31 to reset, and the locking pin 31 is pulled out of the limiting hole on the rail to separate the reaction force support from the rail. At this time, the stepping cylinder is shortened, and the stepping cylinder drives the reaction force support to move toward the head side of the shield machine. When the stepping cylinder reaches the specified length, the locking pin 31 corresponds to the limiting hole on the rail. At this time, the telescopic mechanism 32 drives the locking pin 31 to move toward the rail side again, so that the inner end of the locking pin 31 passes through the through hole 13 and is plugged into the limiting hole on the rail to fix the reaction force support on the rail again. The work is repeated to realize the movement of the head of the shield machine.

[0043] Reference Figure 3 As shown, in some embodiments, the locking pin assembly 30 further includes a connecting cylinder 33 and a slider 35;

[0044] The connecting tube 33 is a metal cylinder, which is fixed on the side plate 12, is connected with the through hole 13, and the inner diameter of the connecting tube 33 matches the diameter of the through hole 13, and the locking pin 31 is plugged into the connecting tube 33;

[0045] The upper side wall of the connecting tube 33 is provided with a slide groove 34, which can be rectangular. The slider 35 is a rectangular metal block. The slider 35 is slidably connected to the slide groove 34. The inner end of the slider 35 is connected to the outer end outer wall of the lock pin 31. The outer end of the slider 35 is connected to the moving end of the telescopic mechanism 32. The telescopic mechanism 32 is arranged on the upper part of the connecting tube 33.

[0046] The moving end of the telescopic mechanism 32 is connected to the slider 35 , and the locking pin 31 is driven to move through the slider 35 .

[0047] In some embodiments, the locking pin assembly 30 further includes a spring 36 and a clamping plate 37;

[0048] The spring 36 is disposed in the connecting tube 33, and the two ends of the spring 36 are respectively in contact with the inner wall of the outer end of the connecting tube 33 and the outer wall of the outer end of the locking pin 31, so that the spring 36 is always in a compressed state;

[0049] The clamping plate 37 is a metal clamping block, which is fixed to the moving end of the telescopic mechanism 32. The side of the slider 35 facing the side plate 12 is a connecting surface, and the clamping plate 37 is clamped with the connecting surface of the slider 35.

[0050] like Figure 3 and Figure 4 As shown, the spring 36 is always in a compressed state. When the telescopic mechanism 32 is extended, the spring 36 pushes the locking pin 31 to insert into the limiting hole of the rail, so that the reaction force support is fixed on the rail. When the telescopic mechanism 32 is shortened, the outer side surface of the clamping plate 37 is engaged with the connecting surface of the slider 35, driving the slider 35 and the locking pin 31 to move outward, withdraw from the limiting hole, and separate the reaction force support from the rail.

[0051] Reference Figure 3 As shown, in some embodiments, the locking pin assembly 30 further includes a limiting rod 38, and the limiting rod 38 is a metal straight rod body;

[0052] The limiting rod 38 is fixed on the side plate 12, and the extending direction of the limiting rod 38 is consistent with the moving direction of the telescopic mechanism 32;

[0053] The clamping plate 37 is provided with a limiting hole, and the limiting rod 38 is inserted into the limiting hole. The radial force on the telescopic mechanism 32 is reduced by the design of the limiting rod 38.

[0054] In some embodiments, the locking pin assembly 30 further includes a buffer block 39 , and the buffer block 39 may be made of rubber;

[0055] The buffer block 39 is fixedly disposed at the inner end of the slide groove 34 , and the slider 35 abuts against the buffer block 39 .

[0056] In some embodiments, the inner end of the locking pin 31 is provided with a conical head, so as to facilitate the locking pin 31 to be inserted into the limiting hole.

[0057] Reference Figure 3 As shown, in some embodiments, a groove body 14 is provided on the lower surface of the support plate 11, and sliding rollers 15 are provided in the groove body 14. A plurality of sliding rollers 15 are slidingly connected to the upper surface of the rail, thereby reducing the friction loss between the reaction support and the rail.

[0058] In some embodiments, two ear plates 20 are arranged parallel to the upper surface of the support plate 11, the stepping cylinder is arranged between the two ear plates 20, an axial hole is provided on the ear plate 20, and the stepping cylinder is connected to the two ear plates 20 through a rotating shaft locking pin.

[0059] Reference Figure 1 and Figure 2 As shown, in some embodiments, the reaction support further includes a first reinforcement plate 40, and the first reinforcement plate 40 is a steel plate;

[0060] The outer walls of the two ear plates 20 are provided with a plurality of first reinforcing plates 40, the bottom ends of the first reinforcing plates 40 are fixedly connected to the support plate 11, and the ear plates 20, the first reinforcing plates 40 and the support plate 11 are perpendicular to each other, thereby improving the stability of the reaction force support.

[0061] In some embodiments, the reaction support further includes a second reinforcement plate 50, and the second reinforcement plate 50 is a steel plate;

[0062] The plurality of second reinforcing plates 50 correspond one-to-one to the plurality of first reinforcing plates 40 . The second reinforcing plates 50 are fixed to the outer wall of the side plate 12 . The top ends of the second reinforcing plates 50 are fixedly connected to the bottom ends of the corresponding first reinforcing plates 40 , thereby further improving the stability of the reaction force support.

[0063] According to the above technical features, the working principle of the reaction force support for the stepping cylinder provided by the present application in the actual application scenario is:

[0064] like Figure 3 and Figure 4 As shown, A is the rail and B is the limit hole;

[0065] When the reaction support moves, Figure 3 As shown, the telescopic mechanism 32 is in a shortened state, the spring 36 is in a compressed state, the outer side surface of the clamping plate 37 is engaged with the connecting surface of the slider 35, so that the locking pin 31 is away from the limiting hole B of the rail A. At this time, the stepping cylinder is gradually shortened, driving the reaction support to move toward the head of the shield machine;

[0066] When the stepping cylinder is about to reach the shortest stroke, the telescopic mechanism 32 extends, and the locking pin 31 moves toward the rail A under the elastic force of the spring 36, abuts against the rail A, and is slidably connected with the outer wall of the rail A. As the stepping cylinder shortens and the reaction support moves, when the locking pin 31 is opposite to a certain limit hole B on the rail A, the locking pin 31 is inserted into the limit hole B, reaching Figure 4 State, at this time, the reaction support is fixed to the rail A, and when the stepping cylinder extends, it pushes the head of the shield machine to move.

[0067] The reaction force support provided in the present application can automatically connect or separate from the rail without manual operation, which greatly improves the construction efficiency and solves the problem that the existing stepping cylinder support has a low degree of automation and requires manual or partial manual operation, resulting in low construction efficiency.

[0068] It is easy to understand that those skilled in the art can combine, split, reorganize, etc. the embodiments of the present application to obtain other embodiments based on the several embodiments provided in the present application, and these embodiments do not exceed the protection scope of the present application.

[0069] The above specific implementation methods further explain in detail the purpose, technical solutions and beneficial effects of the embodiments of the present application. It should be understood that the above are only specific implementation methods of the embodiments of the present application and are not used to limit the protection scope of the embodiments of the present application. Any modifications, equivalent substitutions, improvements, etc. made on the basis of the technical solutions of the embodiments of the present application should be included in the protection scope of the embodiments of the present application.

Claims

1. A reaction force support for a stepping cylinder, the reaction force support is arranged on a rail, the rail is provided with a limiting hole, a plurality of the limiting holes are equidistantly distributed along the extension direction of the rail, characterized in that: The reaction force support comprises a base (10), an ear plate (20) for connecting to a stepping cylinder, and a locking pin assembly (30) for connecting to the rail; The base (10) comprises a support plate (11) and a side plate (12), the ear plate (20) is fixedly arranged on the upper surface of the support plate (11), the two side plates (12) are respectively fixedly arranged on the two ends of the lower surface of the support plate (11), the opposite surfaces of the two side plates (12) are respectively clamped with the outer walls of the two sides of the rail, the side plates (12) are provided with through holes (13) corresponding to the limiting holes, the two locking pin assemblies (30) are respectively arranged on the two side plates (12), and the locking pin assemblies (30) are plugged into the through holes (13) and / or the limiting holes; The locking pin assembly (30) comprises a locking pin (31) matched with the limiting hole and a telescopic mechanism (32) for driving the locking pin (31) to move, wherein the telescopic mechanism (32) is arranged on the side plate (12), the moving end of the telescopic mechanism (32) is connected to the outer end of the locking pin (31), and the inner end of the locking pin (31) is plugged into the through hole (13) and / or the limiting hole.

2. The reaction force support for a stepping cylinder according to claim 1, characterized in that: The locking pin assembly (30) further comprises a connecting cylinder (33) and a sliding block (35); The connecting tube (33) is fixed on the side plate (12), the connecting tube (33) is connected with the through hole (13), and the inner diameter of the connecting tube (33) matches the diameter of the through hole (13), and the locking pin (31) is plugged into the connecting tube (33); The side wall of the connecting tube (33) is provided with a sliding groove (34), the sliding block (35) is slidably connected to the sliding groove (34), the inner end of the sliding block (35) is connected to the outer wall of the outer end of the locking pin (31), and the outer end of the sliding block (35) is connected to the moving end of the telescopic mechanism (32).

3. The reaction force support for a stepping cylinder according to claim 2, characterized in that: The locking pin assembly (30) further comprises a spring (36) and a clamping plate (37); The spring (36) is arranged in the connecting tube (33), and two ends of the spring (36) are respectively in contact with the inner wall of the outer end of the connecting tube (33) and the outer wall of the outer end of the locking pin (31), and the spring (36) is always in a compressed state; The clamping plate (37) is fixedly arranged at the moving end of the telescopic mechanism (32); the side of the slider (35) facing the side plate (12) is a connecting surface; the clamping plate (37) is clamped with the connecting surface of the slider (35).

4. The reaction force support for a stepping cylinder according to claim 3, characterized in that: The locking pin assembly (30) further includes a limiting rod (38); The limiting rod (38) is fixedly mounted on the side plate (12), and the extending direction of the limiting rod (38) is consistent with the moving direction of the telescopic mechanism (32); The clamping plate (37) is provided with a limiting hole, and the limiting rod (38) is inserted into the limiting hole.

5. The reaction force support for a stepping cylinder according to claim 3, characterized in that: The locking pin assembly (30) further includes a buffer block (39); The buffer block (39) is fixedly arranged at the inner end of the slide groove (34), and the sliding block (35) is in abutment with the buffer block (39).

6. The reaction force support for a stepping cylinder according to any one of claims 1 to 5, characterized in that: The inner end of the locking pin (31) is provided with a conical head.

7. The reaction force support for a stepping cylinder according to claim 1, characterized in that: A trough body (14) is provided on the lower surface of the support plate (11), and a sliding roller (15) is provided inside the trough body (14). A plurality of the sliding rollers (15) are slidably connected to the upper surface of the rail.

8. The reaction force support for a stepping cylinder according to claim 1, characterized in that: The two ear plates (20) are arranged in parallel on the upper surface of the support plate (11), the stepping cylinder is arranged between the two ear plates (20), an axial hole is arranged on the ear plate (20), and the stepping cylinder is connected to the two ear plates (20) through a rotating shaft locking pin.

9. The reaction force support for a stepping cylinder according to claim 8, characterized in that: The reaction support further comprises a first reinforcing plate (40); The outer walls of the two ear plates (20) are each provided with a plurality of the first reinforcing plates (40), the bottom ends of the first reinforcing plates (40) are fixedly connected to the support plate (11), and the ear plates (20), the first reinforcing plates (40) and the support plate (11) are perpendicular to each other.

10. The reaction force support for a stepping cylinder according to claim 9, characterized in that: The reaction support further comprises a second reinforcement plate (50); The plurality of second reinforcing plates (50) correspond one-to-one to the plurality of first reinforcing plates (40); the second reinforcing plates (50) are fixedly arranged on the outer wall of the side plate (12); and the top end of the second reinforcing plate (50) is fixedly connected to the bottom end of the corresponding first reinforcing plate (40).

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