A tunnel trolley hydraulic cylinder drives the tunnel trolley lateral centering mechanism

Abstract

The present invention relates to the technical field of tunnel trolleys, and specifically to a tunnel trolley hydraulic cylinder that drives a tunnel trolley lateral centering mechanism, comprising a trolley main support and a plurality of groups of templates connected to the trolley main support through a lifting hydraulic mechanism and a translation hydraulic mechanism. The present invention has the following beneficial effects: the lifting and lowering of the lifting hydraulic cylinders arranged on both sides is controlled to achieve the function of adjusting the horizontality of the main pillars and the top crossbeam on both sides; the distance-adjusting hydraulic cylinders arranged in the lifting hydraulic mechanism and the translation hydraulic mechanism do not directly participate in the gravity bearing of the template, so that the telescopic rod of the distance-adjusting hydraulic cylinder is always subjected to the effect of axial force, and the protection of the distance-adjusting hydraulic cylinder is effectively guaranteed; the first infrared rangefinder is used to detect the lifting displacement change of the template, and the second infrared rangefinder is used to detect the lateral displacement change of the template, and there is no need to manually detect the displacement change, which is more convenient.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel trolleys, in particular to a tunnel trolley hydraulic cylinder driving a tunnel trolley lateral centering mechanism. Background Art

[0002] The tunnel trolley is a special equipment that must be used in the secondary lining of the tunnel construction process. It is used for the concrete lining construction of the inner wall of the tunnel. Before the trolley is used for lining work, it must be positioned and the center line of the trolley must be adjusted by operating the translation cylinder of the hydraulic system to align it with the center line of the tunnel.

[0003] When the hydraulic system of a traditional tunnel trolley performs translational operation, it is directly connected to the formwork through the horizontally arranged hydraulic cylinders on both sides. While the hydraulic cylinders bear the upward force of the formwork on both sides, they also need to bear the gravity of the formwork, which easily increases the wear of the telescopic rods of the hydraulic cylinders and affects the service life of the hydraulic cylinders. Moreover, during the construction process, the guide rails of the tunnel trolley cannot be guaranteed to be in a horizontal state, and the main support of the tunnel trolley is usually a fixed support structure. Therefore, when the formwork is adjusted when the tunnel trolley is in a tilted state, the formwork cannot be completely centered. Summary of the invention

[0004] The object of the present invention is to provide a tunnel trolley hydraulic cylinder to drive a tunnel trolley lateral centering mechanism to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a tunnel trolley hydraulic cylinder drives a tunnel trolley lateral centering mechanism, including a trolley main support and a plurality of templates connected to the trolley main support through a lifting hydraulic mechanism and a translation hydraulic mechanism, the trolley main support includes a bottom beam seat, a main support and a top cross beam, the bottom beam seat is provided with a pair of parallel, rollers are arranged between the lower surfaces of the bottom beam seats, a plurality of main support groups are arranged on the two bottom beam seats, and a top cross beam is connected between the upper ends of each group of main support groups, the template includes a first template and a second template, the first The template is an arc-shaped plate body arranged on the top, and the two ends of the first template are hingedly connected to the second template in the shape of an arc plate through hinge ears. The inner wall of the lower surface of the first template is welded with a transversely arranged supporting crossbeam, and the lower surfaces of the welded supporting crossbeams in multiple groups of templates are fixedly connected by two supporting top beams on both sides, and the upper surfaces of the top crossbeams are respectively connected to the two supporting top beams on both sides through a lifting hydraulic mechanism. The inner side walls of the second templates on the same side in the multiple groups of templates are connected and fixed by two supporting side beams, and a translation hydraulic mechanism is connected between the outer side wall of the main pillar and the supporting side beam.

[0006] Preferably, the bottom of the main support is fixedly connected to the end of the telescopic rod of the lifting hydraulic cylinder, and the bottom of the lifting hydraulic cylinder is fixedly connected to the upper surface of the bottom beam seat by bolts.

[0007] Preferably, the lifting hydraulic mechanism and the translation hydraulic mechanism are both composed of a telescopic bracket and a distance-adjusting hydraulic cylinder. The telescopic bracket is a diamond-shaped articulated bracket, and two parallel support rod side walls in the telescopic bracket are welded with articulated pins, and the articulated pins arranged on the two support rod side walls are connected by a distance-adjusting hydraulic cylinder.

[0008] Preferably, hinge seats are welded on both sides of the upper surface of the top cross beam and the lower surface of the supporting top beam, and both ends of the telescopic bracket in the lifting hydraulic mechanism are respectively hinged to the hinge seats welded on the top cross beam and the supporting top beam.

[0009] Preferably, the outer side wall of the main pillar and the inner side wall of the supporting side beam are both welded with hinge seats, and the two ends of the telescopic bracket in the translation hydraulic mechanism are respectively hinged to the hinge seats welded on the main pillar and the supporting side beam.

[0010] Preferably, a first infrared rangefinder is provided in the middle of the upper surface of the top crossbeam, and the detection direction of the first infrared rangefinder is set vertically upward, and a second infrared rangefinder is provided in the middle of the outer wall of the main support, and the detection direction of the second infrared rangefinder is set horizontally.

[0011] Compared with the prior art, the invention has the following advantages:

[0012] 1. The present invention controls the lifting hydraulic cylinders arranged on both sides to lift and lower, thereby adjusting the horizontality of the main pillars on both sides and the top crossbeam;

[0013] 2. In the present invention, the adjustable distance hydraulic cylinder provided in the lifting hydraulic mechanism and the translation hydraulic mechanism does not directly participate in the gravity bearing of the template, so that the telescopic rod of the adjustable distance hydraulic cylinder is always subjected to the axial force, which effectively ensures the protection of the adjustable distance hydraulic cylinder;

[0014] 3. The present invention uses the first infrared rangefinder to detect the lifting displacement change of the template, and uses the second infrared rangefinder to detect the lateral displacement change of the template. It is more convenient to detect the displacement change manually. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention;

[0016] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0017] Figure 3 It is a partial cross-sectional view of the structure of the present invention;

[0018] Figure 4 It is a front view of the structure of the present invention.

[0019] In the figure: bottom beam seat 1, lifting hydraulic cylinder 2, main support 3, top cross beam 4, roller 5, lifting hydraulic mechanism 6, translation hydraulic mechanism 7, first template 8, second template 801, supporting cross beam 9, supporting top beam 10, supporting side beam 11, first infrared rangefinder 12, second infrared rangefinder 13, articulated ear 14, articulated seat 15, telescopic bracket 16, distance adjusting hydraulic cylinder 17, articulated pin 18. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figures 1 to 4 The present invention provides a technical solution: a tunnel trolley hydraulic cylinder drives a tunnel trolley lateral centering mechanism, including a trolley main support and a plurality of templates connected to the trolley main support through a lifting hydraulic mechanism 6 and a translation hydraulic mechanism 7, combined with Figure 1 and Figure 4 As shown, the trolley main support includes a bottom beam seat 1, main pillars 3 and a top cross beam 4. The bottom beam seat 1 is provided with a pair of parallel rollers 5 arranged between the lower surfaces of the bottom beam seats 1 for connecting with the trolley track for the movement of the tunnel trolley. Multiple groups of main pillars 3 are arranged on the two bottom beam seats 1, and a top cross beam 4 is connected between the upper ends of each group of main pillars 3. The bottom of the main pillar 3 is fixedly connected to the end of the telescopic rod of the lifting hydraulic cylinder 2. The bottom of the lifting hydraulic cylinder 2 is fixedly connected to the upper surface of the bottom beam seat 1 by bolts. The lifting and lowering of the lifting hydraulic cylinders 2 arranged on both sides is controlled to achieve the effect of adjusting the horizontality of the main pillars 3 on both sides and the top cross beam 4.

[0022] Combination Figure 1 and Figure 4As shown, the template includes a first template 8 and a second template 801. The first template 8 is an arc-shaped plate body arranged at the top. The two ends of the first template 8 are hinged with the second template 801 in the shape of an arc plate through hinge ears 14. The second template 801 can be flipped inside and outside for adjustment, so as to facilitate the retraction of the template when demoulding. A transversely arranged supporting beam 9 is welded to the inner wall of the lower surface of the first template 8, and the lower surfaces of the welded supporting beams 9 in multiple groups of templates are fixedly connected by two supporting top beams 10 on both sides. The upper surfaces of the top beam 4 are respectively connected to the two supporting top beams 10 through a lifting hydraulic mechanism 6, and the lifting and lowering of the template is controlled by the lifting hydraulic mechanism 6. The inner walls of the second templates 801 on the same side in the multiple groups of templates are connected and fixed by two supporting side beams 11, and a translation hydraulic mechanism 7 is connected between the outer wall of the main pillar 3 and the supporting side beam 11, and the translation hydraulic mechanism 7 controls the translation of the template.

[0023] Combine 2 and Figure 4 As shown, the lifting hydraulic mechanism 6 and the translation hydraulic mechanism 7 are both composed of a telescopic bracket 16 and a distance-adjusting hydraulic cylinder 17. The telescopic bracket 16 is a rhombus-shaped articulated bracket. Two parallel support rod side walls in the telescopic bracket 16 are welded with a hinge pin 18, and the hinge pins 18 provided on the two support rod side walls are connected by the distance-adjusting hydraulic cylinder 17. Both sides of the upper surface of the top cross beam 4 and the lower surface of the supporting top beam 10 are welded with an articulated seat 15, and the two ends of the telescopic bracket 16 in the lifting hydraulic mechanism 6 are respectively hinged to the articulated seats 15 welded on the top cross beam 4 and the supporting top beam 10. The outer wall of the column 3 and the inner wall of the supporting side beam 11 are welded with an articulated seat 15, and the two ends of the telescopic bracket 16 in the translation hydraulic mechanism 7 are respectively hinged to the articulated seats 15 welded on the main pillar 3 and the supporting side beam 11. By controlling the extension and retraction of the telescopic rod of the lifting hydraulic mechanism 6, the extension effect of the telescopic bracket 16 is controlled. By changing the installation structure of the distance adjusting hydraulic cylinder 17, the distance adjusting hydraulic cylinder 17 does not directly participate in the gravity bearing of the template, so that the telescopic rod of the distance adjusting hydraulic cylinder 17 is always subjected to the action of axial force, thereby effectively ensuring the protection of the distance adjusting hydraulic cylinder 17.

[0024] like Figure 4 As shown, a first infrared rangefinder 12 is provided in the middle of the upper surface of the top crossbeam 4, and the detection direction of the first infrared rangefinder 12 is set vertically upward. The first infrared rangefinder 12 is used to detect the lifting and lowering displacement changes of the template. A second infrared rangefinder 13 is provided in the middle of the outer wall of the main support 3, and the detection direction of the second infrared rangefinder 13 is set horizontally. The second infrared rangefinder 13 is used to detect the lateral displacement changes of the template.

[0025] Working principle: When the present invention is used, the lifting and lowering of the lifting hydraulic cylinders 2 arranged on both sides is controlled to be lifted and lowered, so as to adjust the horizontality of the main pillars 3 on both sides and the top crossbeam 4; the telescopic rods of the distance-adjusting hydraulic cylinders 17 in the two sets of lifting hydraulic mechanisms 6 are controlled to be extended and retracted, so that the lifting hydraulic mechanisms 6 are extended or retracted, so as to control the height adjustment of the template; the telescopic rods of the distance-adjusting hydraulic cylinders 17 in the two sets of translation hydraulic mechanisms 7 are controlled to be extended and retracted, so that the translation hydraulic mechanisms 7 are extended or retracted, so as to control the horizontal displacement of the template and adjust the center of the template, wherein the distance-adjusting hydraulic cylinders 17 arranged in the lifting hydraulic mechanisms 6 and the translation hydraulic mechanisms 7 do not directly participate in the gravity bearing of the template, so that the telescopic rods of the distance-adjusting hydraulic cylinders 17 are always subjected to the action of the axial force, effectively ensuring the protection of the distance-adjusting hydraulic cylinders 17; the first infrared rangefinder 12 is used to detect the lifting displacement change of the template, and the second infrared rangefinder 13 is used to detect the lateral displacement change of the template, and there is no need to manually detect the displacement change, which is more convenient.

[0026] 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 tunnel trolley hydraulic cylinder drives a tunnel trolley lateral centering mechanism, comprising a trolley main support and a plurality of templates connected to the trolley main support via a lifting hydraulic mechanism (6) and a translation hydraulic mechanism (7), characterized in that: The trolley main support comprises a bottom beam seat (1), a main support (3) and a top cross beam (4), wherein the bottom beam seat (1) is provided with a pair of parallel bottom beam seats, and rollers (5) are arranged between the lower surfaces of the bottom beam seats (1), and multiple groups of main support pillars (3) are arranged on the two bottom beam seats (1), and the top cross beam (4) is connected between the upper ends of each group of main support pillars (3), and the template comprises a first template (8) and a second template (801), the first template (8) is an arc-shaped plate body arranged at the top, and the two ends of the first template (8) are hingedly connected to the second template (801) in the shape of an arc plate through hinge ears (14), and the inner wall of the lower surface of the first template (8) is welded with a transversely arranged support cross beam (9), and the lower surfaces of the welded support cross beams (9) in the multiple groups of templates are fixedly connected by two support top beams (10), and the upper surfaces of the top cross beam (4) are respectively connected to the two support top beams (10) through a lifting hydraulic mechanism (6), and the multiple groups of templates are provided with a plurality of support cross beams (9). The inner side walls of the second template (801) on the same side are connected and fixed by two supporting side beams (11), and a translation hydraulic mechanism (7) is connected between the outer side wall of the main support (3) and the supporting side beam (11); the lifting hydraulic mechanism (6) and the translation hydraulic mechanism (7) are both composed of a telescopic bracket (16) and a distance-adjusting hydraulic cylinder (17); the telescopic bracket (16) is a rhombus-shaped hinged bracket, and two parallel support rod side walls in the telescopic bracket (16) are welded with hinge pins (18), and the hinge pins (18) provided on the two support rod side walls are connected by the distance-adjusting hydraulic cylinder (17); a first infrared rangefinder (12) is provided in the middle of the upper surface of the top crossbeam (4), and the detection direction of the first infrared rangefinder (12) is set vertically upward; a second infrared rangefinder (13) is provided in the middle of the outer side wall of the main support (3), and the detection direction of the second infrared rangefinder (13) is set horizontally.

2. A tunnel trolley hydraulic cylinder driving a tunnel trolley lateral centering mechanism according to claim 1, characterized in that: The bottom of the main support (3) is fixedly connected to the end of the telescopic rod of the lifting hydraulic cylinder (2), and the bottom of the lifting hydraulic cylinder (2) is fixedly connected to the upper surface of the bottom beam seat (1) via bolts.

3. The tunnel trolley hydraulic cylinder driving tunnel trolley lateral centering mechanism according to claim 1 is characterized in that: Both sides of the upper surface of the top cross beam (4) and the lower surface of the supporting top beam (10) are welded with hinged seats (15), and both ends of the telescopic bracket (16) in the lifting hydraulic mechanism (6) are respectively hinged to the hinged seats (15) welded on the top cross beam (4) and the supporting top beam (10).

4. The tunnel trolley hydraulic cylinder driving tunnel trolley lateral centering mechanism according to claim 1 is characterized in that: The outer side wall of the main pillar (3) and the inner side wall of the supporting side beam (11) are both welded with hinged seats (15), and the two ends of the telescopic bracket (16) in the translation hydraulic mechanism (7) are respectively hinged to the hinged seats (15) welded on the main pillar (3) and the supporting side beam (11).

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