Supporting beam for tunnel trolley

Abstract

The utility model discloses a supporting beam for a tunnel trolley, which relates to the technical field of tunnel trolleys and comprises a fixing frame and a template component. An arc-shaped supporting plate is fixed to the upper side of the fixing frame, four corresponding first hydraulic rods are hinged to the left side and the right side of the fixing frame, an extrusion assembly is installed on the lower side of the arc-shaped supporting plate, a supporting assembly and a fixing assembly are installed on the two acting sides of the fixing frame, and the extrusion assembly is matched with the supporting assembly; the input end of the first hydraulic rod is electrically connected with the output end of an external control switch group; and the formwork assembly comprises arc-shaped formworks, connecting strips, rotating shafts and connecting frames, the two corresponding arc-shaped formworks are arranged on the left side and the right side of the arc-shaped supporting plate, the connecting strips are fixed to the side faces of the arc-shaped formworks, the positions of the formworks can be adjusted very conveniently, and meanwhile rapid adjustment can be conducted according to the pressure of a tunnel during construction.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel trolleys, in particular to a support beam used for a tunnel trolley. Background Art

[0002] The tunnel trolley is a mechanical equipment used for secondary lining in tunnel construction. It is widely used in railways, highways, water conservancy and hydropower projects. This equipment can not only improve the quality of concrete lining, but also speed up the construction progress and improve work efficiency. During the tunnel construction process, due to the different types of surrounding geological rocks and the different inner diameters of the tunnels, the tunnel trolley template system should be able to adjust its working position in time according to different working environments.

[0003] During the current construction process, multiple hydraulic rods are usually used to drive multiple hydraulic cylinders to adjust the working position of each template in turn based on the workers' experience, and then fix them with bolts. However, this method cannot be adjusted quickly according to changes in the tunnel, and there may be dangers during the construction process. For this reason, we propose a support beam for the tunnel trolley. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a support beam for a tunnel trolley, which can very conveniently adjust the position of the template and can be quickly adjusted according to the pressure of the tunnel during construction, which can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a support beam for a tunnel trolley, comprising a fixing frame and a template assembly;

[0006] Fixed frame: an arc-shaped support plate is fixed on the upper side, four corresponding first hydraulic rods are hinged on the left and right sides of the fixed frame, an extrusion assembly is installed on the lower side of the arc-shaped support plate, a support assembly and a fixed assembly are installed on the left and right sides of the fixed frame, the extrusion assembly and the support assembly cooperate, and the input end of the first hydraulic rod is electrically connected to the output end of the external control switch group;

[0007] The template assembly comprises an arc-shaped template, a connecting strip, a rotating shaft and a connecting frame. Two corresponding arc-shaped templates are arranged on the left and right sides of the arc-shaped support plate. A connecting strip is fixed on the side of the arc-shaped template. A through hole is opened on the edge of the connecting strip. A rotating shaft is fixed inside the through hole. The front and rear ends of the circumferential surface of the rotating shaft are rotatably connected to two corresponding connecting frames. The four connecting frames are all fixed on the lower side of the arc-shaped support plate. The telescopic arms of the four first hydraulic rods are respectively hinged on the sides of the left and right arc-shaped templates. The interior of the tunnel is supported by setting the template assembly.

[0008] Furthermore, the fixing assembly includes a motor, a gear, a U-shaped frame, a bidirectional screw, a gear ring, a support bar and a limit rod. The motor is installed inside the fixing frame, and a gear is fixed on the output shaft of the motor. The U-shaped frame is provided with two, and a threaded hole is provided on the front side edge of the U-shaped frame. The threads of the two threaded holes are opposite, and the internal threads of the two threaded holes are connected with a bidirectional screw. The bidirectional screw is welded by two threaded rods with opposite threads. A gear ring is fixed on the circumferential surface of the bidirectional screw, and the gear ring is meshed with the gear. Two corresponding through holes are provided on the left side of the fixing frame, and the bidirectional screw is rotatably connected to the inside of the through hole on the front side. A limiting hole is provided on the rear side edge of the U-shaped frame, and the two limiting holes are slidably connected to the limiting rod, and the limiting rod is fixed to the inside of the through hole on the rear side. A support bar is fixed on the side of the U-shaped frame, and the support bar is in contact with the arc template. The input end of the motor is electrically connected to the output end of the external control switch group, and the arc template is fixed by setting a fixing assembly.

[0009] Furthermore, the extrusion assembly includes a second hydraulic rod and a triangular support block. The second hydraulic rod is installed on the lower side of the arc-shaped support plate. The triangular support block is fixed on the telescopic arm of the second hydraulic rod. The input end of the second hydraulic rod is electrically connected to the output end of the external control switch group. The two extrusion strips are extruded by setting the extrusion assembly.

[0010] Furthermore, the support assembly includes a U-shaped support rod, a fixing ring, a spring and an extrusion strip, four corresponding connecting holes are opened on the left and right sides of the fixing frame, and the U-shaped support rod is slidably connected inside the four connecting holes, the U-shaped support rod is in contact with the arc template, and two corresponding fixing rings are fixed on the circumferential surface of the U-shaped support rod, and two corresponding springs are sleeved on the circumferential surface of the U-shaped support rod, one end of the two springs is fixed on the side of the fixing frame, and the other ends of the two springs are respectively connected to the two fixing rings, and an extrusion strip is fixed on the end surface of the U-shaped support rod located on the fixing frame, and the triangular support block is located between the two extrusion strips, and the arc template is supported by setting the support assembly.

[0011] Furthermore, four corresponding fixing plates are fixed on the left and right sides of the fixing frame, a fixing hole is opened in the middle of the fixing plate, and the fixing frame is connected to the tunnel trolley by arranging the fixing plates and the fixing holes.

[0012] Compared with the prior art, the beneficial effects of the utility model are: the support beam for the tunnel trolley has the following advantages:

[0013] The two arc templates are supported by setting a supporting assembly. After support, the motor is started to rotate the bidirectional screw to drive the two U-shaped frames and the two support bars to contact the sides of the two arc templates. After contact, the two arc templates supported by the supporting assembly can be fixed, so that their deviation can be avoided. At the same time, when changes occur in the tunnel, the motor can be controlled to rotate to separate the two U-shaped frames and the two support bars from the two arc templates. Then, the angle of the two arc templates can be adjusted very conveniently. Compared with traditional bolt fixing, it is more convenient and quicker. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the front structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the template assembly of the utility model;

[0016] Figure 3 It is a lower side sectional view of the utility model;

[0017] Figure 4 It is a front sectional view of the utility model.

[0018] In the figure: 1 fixed frame, 2 arc-shaped support plate, 3 template assembly, 31 arc-shaped template, 32 connecting strip, 33 rotating shaft, 34 connecting frame, 4 first hydraulic rod, 5 fixed assembly, 51 motor, 52 gear, 53 U-shaped frame, 54 bidirectional screw, 55 gear ring, 56 support strip, 57 limit rod, 6 extrusion assembly, 61 second hydraulic rod, 62 triangular support block, 7 support assembly, 71 U-shaped support rod, 72 fixed ring, 73 spring, 74 extrusion strip, 8 fixed plate, 9 fixed hole. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-4 ,This embodiment provides a technical solution: a support beam for a tunnel trolley, comprising a fixing frame 1 and a template assembly 3;

[0021] Fixed frame 1: An arc-shaped support plate 2 is fixed on the upper side, four corresponding first hydraulic rods 4 are hinged on the left and right sides of the fixed frame 1, an extrusion assembly 6 is installed on the lower side of the arc-shaped support plate 2, and a support assembly 7 and a fixed assembly 5 are installed on the left and right sides of the fixed frame 1. The extrusion assembly 6 and the support assembly 7 cooperate with each other. The input end of the first hydraulic rod 4 is electrically connected to the output end of the external control switch group. The fixed assembly 5 includes a motor 51, a gear 52, a U-shaped frame 53, a bidirectional screw 54, a gear ring 55, a support bar 56 and a limit rod 57. The motor 51 is installed inside the fixed frame 1, and a gear 52 is fixed on the output shaft of the motor 51. The U-shaped frame 53 is provided with two The front side of the U-shaped frame 53 is provided with a threaded hole, the threads of the two threaded holes are opposite, and the internal threads of the two threaded holes are connected with a bidirectional screw 54, which is welded by two threaded rods with opposite threads. A gear ring 55 is fixed on the circumferential surface of the bidirectional screw 54, and the gear ring 55 is meshed with the gear 52. Two corresponding through holes are provided on the left side of the fixed frame 1, and the bidirectional screw 54 is rotatably connected to the inside of the through hole on the front side. A limiting hole is provided on the rear side of the U-shaped frame 53, and the two limiting holes are slidably connected to a limiting rod 57, and the limiting rod 57 is fixed to the inside of the through hole on the rear side. A support bar 56 is fixed on the side of the U-shaped frame 53, and the support bar 5 6 is fitted with the arc template 31, the input end of the motor 51 is electrically connected to the output end of the external control switch group, the extrusion component 6 includes a second hydraulic rod 61 and a triangular support block 62, the second hydraulic rod 61 is installed on the lower side of the arc support plate 2, the triangular support block 62 is fixed on the telescopic arm of the second hydraulic rod 61, the input end of the second hydraulic rod 61 is electrically connected to the output end of the external control switch group, the support component 7 includes a U-shaped support rod 71, a fixing ring 72, a spring 73 and an extrusion strip 74, four corresponding connection holes are opened on the left and right sides of the fixing frame 1, the U-shaped support rod 71 is slidably connected inside the four connection holes, and the U-shaped support rod 71 and the arc The arc template 31 is fitted, two corresponding fixing rings 72 are fixed on the circumferential surface of the U-shaped support rod 71, and two corresponding springs 73 are sleeved on the circumferential surface of the U-shaped support rod 71. One end of the two springs 73 is fixed on the side of the fixing frame 1, and the other ends of the two springs 73 are respectively connected to the two fixing rings 72. An extrusion strip 74 is fixed on the end surface of the U-shaped support rod 71 located on the fixing frame 1, and the triangular support block 62 is located between the two extrusion strips 74. The arc template 31 is supported by setting the support component 7, the two extrusion strips 74 are extruded by setting the extrusion component 6, and the arc template 31 is fixed by setting the fixing component 5;

[0022] The template assembly 3: comprises an arc template 31, a connecting strip 32, a rotating shaft 33 and a connecting frame 34. Two corresponding arc templates 31 are arranged on the left and right sides of the arc support plate 2. The side of the arc template 31 is fixed with a connecting strip 32. The edge of the connecting strip 32 is provided with a through hole. The inside of the through hole is fixed with a rotating shaft 33. The front and rear ends of the circumferential surface of the rotating shaft 33 are rotatably connected to two corresponding connecting frames 34. The four connecting frames 34 are all fixed on the lower side of the arc support plate 2. The telescopic arms of the four first hydraulic rods 4 are respectively hinged on the sides of the left and right arc templates 31. The interior of the tunnel is supported by setting the template assembly 3.

[0023] Wherein: four corresponding fixing plates 8 are fixed on the left and right sides of the fixing frame 1, and a fixing hole 9 is opened in the middle of the fixing plate 8. The fixing frame 1 is connected to the tunnel trolley by setting the fixing plate 8 and the fixing hole 9.

[0024] The working principle of the support beam for a tunnel trolley provided by the utility model is as follows: during normal use, the fixed frame 1 is connected to the tunnel trolley. After the connection, when the tunnel trolley moves to the interior of the tunnel, the four first hydraulic rods 4 are started to move the two arc-shaped templates 31. When it moves to a suitable position, the second hydraulic rod 61 is started to make the triangular support block 62 squeeze the two extrusion bars 74 downward. After extrusion, the two U-shaped support rods 71 ​​are moved to support the two arc-shaped templates 31. After support, the motor 51 is started to make the bidirectional screw 54 rotate to drive the two U-shaped frames 53 and the two support bars 56 to contact the sides of the two arc-shaped templates 31. After contact, the two arc-shaped templates 31 supported by the support assembly can be fixed, so that the deviation can be avoided. At the same time, when the tunnel changes, the motor 51 can be controlled to rotate to separate the two U-shaped frames 53 and the two support bars 56 from the two arc-shaped templates 31, and then all the first hydraulic rods 4 and the second hydraulic rods 61 are controlled to contract to adjust the angles of the two arc-shaped templates 31 very conveniently. Compared with traditional bolt fixing, it is more convenient and quick.

[0025] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A support beam for a tunnel trolley, characterized in that: It comprises a fixing frame (1) and a template assembly (3); A fixed frame (1): an arc-shaped support plate (2) is fixed on the upper side, four corresponding first hydraulic rods (4) are hinged on the left and right sides of the fixed frame (1), an extrusion assembly (6) is installed on the lower side of the arc-shaped support plate (2), a support assembly (7) and a fixed assembly (5) are installed on the left and right sides of the fixed frame (1), the extrusion assembly (6) and the support assembly (7) cooperate with each other, and the input end of the first hydraulic rod (4) is electrically connected to the output end of an external control switch group; The template assembly (3) comprises an arc template (31), a connecting strip (32), a rotating shaft (33) and a connecting frame (34). Two corresponding arc templates (31) are arranged on the left and right sides of the arc support plate (2). The side of the arc template (31) is fixed with a connecting strip (32). The edge of the connecting strip (32) is provided with a through hole. The interior of the through hole is fixed with a rotating shaft (33). The front and rear ends of the circumferential surface of the rotating shaft (33) are rotatably connected to two corresponding connecting frames (34). The four connecting frames (34) are all fixed on the lower side of the arc support plate (2). The telescopic arms of the four first hydraulic rods (4) are respectively hinged on the sides of the left and right arc templates (31).

2. The support beam for a tunnel trolley according to claim 1, characterized in that: The fixing assembly (5) comprises a motor (51), a gear (52), a U-shaped frame (53), a bidirectional screw (54), a gear ring (55), a support bar (56) and a limit rod (57); the motor (51) is installed inside the fixing frame (1); the gear (52) is fixed on the output shaft of the motor (51); two U-shaped frames (53) are provided; a threaded hole is opened on the front side of the U-shaped frame (53); the threads of the two threaded holes are opposite to each other; the internal threads of the two threaded holes are connected with the bidirectional screw (54); the bidirectional screw (54) is welded by two threaded rods with opposite threads; the bidirectional screw (54) is A gear ring (55) is fixed on the circumferential surface, and the gear ring (55) is meshed with the gear (52). Two corresponding through holes are provided on the left side of the fixed frame (1). The bidirectional screw (54) is rotatably connected to the inside of the through hole on the front side. A limiting hole is provided on the rear side edge of the U-shaped frame (53). A limiting rod (57) is slidably connected between the two limiting holes. The limiting rod (57) is fixed to the inside of the through hole on the rear side. A supporting bar (56) is fixed on the side of the U-shaped frame (53). The supporting bar (56) is fitted with the arc template (31). The input end of the motor (51) is electrically connected to the output end of the external control switch group.

3. The support beam for a tunnel trolley according to claim 1, characterized in that: The extrusion assembly (6) comprises a second hydraulic rod (61) and a triangular support block (62); the second hydraulic rod (61) is installed on the lower side of the arc-shaped support plate (2); the triangular support block (62) is fixed on the telescopic arm of the second hydraulic rod (61); and the input end of the second hydraulic rod (61) is electrically connected to the output end of an external control switch group.

4. The support beam for a tunnel trolley according to claim 3, characterized in that: The support assembly (7) comprises a U-shaped support rod (71), a fixing ring (72), a spring (73) and an extrusion strip (74). Four corresponding connection holes are provided on the left and right sides of the fixing frame (1). The U-shaped support rod (71) is slidably connected inside the four connection holes. The U-shaped support rod (71) fits the arc-shaped template (31). Two corresponding fixing rings (72) are fixed on the circumferential surface of the U-shaped support rod (71). Two corresponding springs (73) are sleeved on the circumferential surface of the U-shaped support rod (71). One end of the two springs (73) is fixed on the side surface of the fixing frame (1), and the other ends of the two springs (73) are respectively connected to the two fixing rings (72). An extrusion strip (74) is fixed on the end surface of the U-shaped support rod (71) located on the fixing frame (1), and the triangular support block (62) is located between the two extrusion strips (74).

5. The support beam for a tunnel trolley according to claim 1, characterized in that: Four corresponding fixing plates (8) are fixed on the left and right sides of the fixing frame (1), and a fixing hole (9) is provided in the middle of the fixing plate (8).

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