Tunnel trolley with adjustable load-bearing foot suspension

Abstract

The present invention relates to the technical field of tunnel trolleys, specifically to a tunnel trolley with an adjustable load-bearing foot suspension, comprising a trolley frame, a lifting device and an auxiliary support device, the trolley frame comprising a pair of bottom beam seats and multiple groups of support columns connected to the two bottom beam seats, a lifting device is arranged between the bottom of the support base and the bottom beam seat, and an auxiliary support device is arranged at the intervals between each group of support columns on the bottom beam seat, with beneficial effects as follows: in the auxiliary support device of the present invention, the telescopic rod of the hydraulic cylinder is extended by controlling the support foot adjustment until the support chassis contacts the ground for support, at which time the auxiliary support device performs auxiliary support on the trolley frame to ensure the stability of the trolley frame during construction, and the adjustment and control operation of the auxiliary support device is convenient; a hinged ball end is arranged at the lower end of the support block, and the hinged ball end is hinged to the upper end of the support chassis, so that the support chassis can be rotated arbitrarily within a certain angle range to ensure the effective fitting of the support chassis with the uneven bottom surface.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel trolleys, in particular to a tunnel trolley with an adjustable load-bearing foot suspension. Background Art

[0002] At present, in order to ensure sufficient strength, the lining trolleys used in tunnel construction mostly adopt a structure with a skeleton as the main support body. The trolley is connected to the guide rails through rollers on both sides of the bottom of the skeleton for the movement of the trolley. However, when the tunnel trolley is under construction, the supporting and fixing performance of the skeleton is poor, which easily causes the trolley skeleton to shake, thereby affecting the fixation of the template. Therefore, a conveniently adjustable trolley foot suspension is required to ensure the stable operation of the tunnel trolley. Summary of the invention

[0003] The object of the present invention is to provide a tunnel trolley with an adjustable load-bearing foot suspension to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a tunnel trolley with an adjustable load-bearing foot suspension, comprising a trolley frame, a lifting device and an auxiliary support device, the trolley frame comprising a pair of bottom beam seats and a plurality of groups of support columns connected to the two bottom beam seats, a crossbeam is connected between the upper ends of each group of support columns, the bottom of the support column is a support base, and ribs are welded to the upper surface of the support base on both sides of the bottom of the support column, a lifting device is arranged between the bottom of the support base and the bottom beam seat, auxiliary support devices are arranged at the intervals between each group of support columns on the bottom beam seat, the auxiliary support device comprises an articulated seat, a suspension foot and a foot adjustment member, and the hinge The connecting seat is welded to the outer side wall of the bottom beam seat, and the articulated seat is articulated with a suspension leg, the suspension leg includes a crank, a shock absorbing assembly, a support block and a support chassis, one end of the crank is articulated with the articulated seat, the outer end of the crank is connected to the support block through the shock absorbing assembly, the lower end of the support block is connected to the support chassis, the suspension leg is connected to a leg adjustment component, the leg adjustment component includes a support plate frame and a leg adjustment hydraulic cylinder, the support plate frame is an "L"-shaped support plate body and is fixed to the bottom beam seat by bolts, the outer side wall of the support plate frame is articulated with one end of the leg adjustment hydraulic cylinder, and the end of the telescopic rod at the other end of the leg adjustment hydraulic cylinder is articulated with the upper end of the outer end of the crank.

[0005] Preferably, the lifting device includes a lifting hydraulic cylinder and a guiding telescopic member, the bottom of the lifting hydraulic cylinder is fixed to the upper surface of the bottom beam seat by bolts, and the upper end of the telescopic rod of the lifting hydraulic cylinder is fixedly connected to the lower surface of the supporting base.

[0006] Preferably, guide telescopic parts are provided on both sides of the lifting hydraulic cylinder, and the guide telescopic parts include an outer guide cylinder and an inner guide rod that fit together. The bottom of the outer guide cylinder is fixedly connected to the bottom beam seat by bolts, and the upper end of the inner guide rod is fixedly connected to the lower surface of the support base.

[0007] Preferably, the shock absorbing assembly includes a shock absorbing sleeve and a shock absorbing inner rod which fit together and a shock absorbing spring which is sleeved on the outside of the shock absorbing sleeve and the shock absorbing inner rod. The lower end of the shock absorbing sleeve is fixedly welded to the support block, the upper end of the shock absorbing inner rod is fixedly connected to the end of the crank, and the two ends of the shock absorbing spring are respectively connected in contact with the crank and the support block.

[0008] Preferably, a hinged ball end is provided at the lower end of the support block, and the hinged ball end is hinged to the upper end of the support chassis.

[0009] Compared with the prior art, the invention has the following advantages:

[0010] 1. The present invention adjusts the lifting height of the support column by controlling the telescopic rod of the lifting hydraulic cylinder to extend and retract, and guide telescopic parts are provided on both sides of the lifting hydraulic cylinder to guide the support column when it is lifted and lowered, thereby ensuring the stability of the support column when it is lifted and lowered;

[0011] 2. In the auxiliary support device of the present invention, the telescopic rod of the hydraulic cylinder is extended by controlling the support foot until the supporting chassis contacts the ground for support. At this time, the auxiliary support device provides auxiliary support for the trolley frame to ensure the stability of the trolley frame during the construction process, and the adjustment and control operation of the auxiliary support device is convenient;

[0012] 3. In the present invention, a hinged ball end is provided at the lower end of the support block, and the hinged ball end is hinged to the upper end of the support chassis, so that the support chassis can be rotated arbitrarily within a certain angle range, ensuring that the support chassis effectively fits the uneven bottom surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the present invention;

[0014] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0015] Figure 3 It is a front view of the structure of the present invention;

[0016] Figure 4 for Figure 3 Sectional view at the middle BB;

[0017] Figure 5 for Figure 4 Enlarged view of point C in the middle.

[0018] In the figure: bottom beam seat 1, lifting device 2, support column 3, support base 301, rib 302, auxiliary support device 4, lifting hydraulic cylinder 5, guide telescopic member 6, hinge seat 7, crank 8, shock absorbing assembly 9, support block 10, support chassis 11, support plate frame 12, support leg adjustment hydraulic cylinder 13, outer guide cylinder 14, inner guide rod 15, shock absorbing sleeve 16, shock absorbing inner rod 17, shock absorbing spring 18, hinged ball end 19. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figures 1 to 5 The present invention provides a technical solution: a tunnel trolley with an adjustable load-bearing foot suspension, comprising a trolley frame, a lifting device 2 and an auxiliary support device 4, combined with Figure 1 and Figure 3 As shown, the trolley frame includes a pair of bottom beam seats 1 and multiple groups of support columns 3 connected to the two bottom beam seats 1. Rollers are arranged below the two bottom beam seats 1 for connecting with guide rails for the movement of the tunnel trolley. A crossbeam is connected between the upper ends of each group of support columns 3. The bottom of the support column 3 is a support base 301, and ribs 302 are welded on both sides of the bottom of the support column 3 and the upper surface of the support base 301 to ensure the structural connection stability between the support base 301 and the support column 3. A lifting device 2 is arranged between the bottom of the support base 301 and the bottom beam seat 1. The lifting device 2 includes a lifting hydraulic cylinder 5 and a guide telescopic member 6. The bottom of the lifting hydraulic cylinder 5 The upper part is fixed to the upper surface of the bottom beam seat 1 by bolts, and the upper end of the telescopic rod of the lifting hydraulic cylinder 5 is fixedly connected to the lower surface of the support base 301. The telescopic rod of the lifting hydraulic cylinder 5 is controlled to extend and retract to achieve the adjustment of the lifting height of the support column 3. Both sides of the lifting hydraulic cylinder 5 are provided with a guide telescopic member 6. The guide telescopic member 6 includes an outer guide cylinder 14 and an inner guide rod 15 that fit each other. The bottom of the outer guide cylinder 14 is fixedly connected to the bottom beam seat 1 by bolts, and the upper end of the inner guide rod 15 is fixedly connected to the lower surface of the support base 301. The guide telescopic member 6 guides when the support column 3 is lifted and lowered to ensure the stability of the support column 3 when it is lifted and lowered.

[0021] Combination Figure 1 and Figure 2As shown, an auxiliary support device 4 is provided at the interval between each group of support columns 3 on the bottom beam seat 1, and the auxiliary support device 4 includes an articulated seat 7, a suspension support foot and a support foot adjustment member. The articulated seat 7 is welded to the outer side wall of the bottom beam seat 1, and the articulated seat 7 is hinged with a suspension support foot. The suspension support foot includes a crank 8, a shock absorbing assembly 9, a support block 10 and a support chassis 11. One end of the crank 8 is hinged to the articulated seat 7, and the outer end of the crank 8 is connected to the support block 10 through the shock absorbing assembly 9. The lower end of the support block 10 is connected to the support chassis 11. The bottom beam seat 1 is supported by the auxiliary support of the suspension support foot in a lateral extension, which effectively improves the support stability of the trolley frame.

[0022] Combination Figure 2 and Figure 5 As shown, the shock absorbing assembly 9 includes a shock absorbing sleeve 16 and a shock absorbing inner rod 17 which fit each other, and a shock absorbing spring 18 which is sleeved on the outside of the shock absorbing sleeve 16 and the shock absorbing inner rod 17. The lower end of the shock absorbing sleeve 16 is fixedly welded to the support block 10, and the upper end of the shock absorbing inner rod 17 is fixedly connected to the end of the crank 8. The two ends of the shock absorbing spring 18 are respectively connected to the crank 8 and the support block 10 in abutment with each other. The shock absorbing assembly 9 can effectively buffer the vibration generated during the construction of the trolley frame. The lower end of the support block 10 is provided with a hinged ball end 19, and the hinged ball end 19 is hinged to the upper end of the support chassis 11, so that the support chassis 11 can be rotated arbitrarily within a certain angle range to ensure that the support chassis 11 effectively fits the uneven bottom surface.

[0023] Combination Figure 2 and Figure 5 As shown, the suspension leg is connected to a leg adjustment component, which includes a support plate frame 12 and a leg adjustment hydraulic cylinder 13. The support plate frame 12 is an "L"-shaped support plate body and is fixed to the bottom beam seat 1 by bolts. The outer wall of the support plate frame 12 is hinged to one end of the leg adjustment hydraulic cylinder 13, and the telescopic rod end of the other end of the leg adjustment hydraulic cylinder 13 is hinged to the upper end of the outer end of the crank 8. When the tunnel trolley is moving, the telescopic rod of the leg adjustment hydraulic cylinder 13 is controlled to retract, so that the crank 8 can be flipped and lifted upward, so that the supporting chassis 11 is separated from the bottom surface. When the tunnel trolley is performing construction operations, the telescopic rod of the leg adjustment hydraulic cylinder 13 is controlled to extend until the supporting chassis 11 is in contact with the ground for support. At this time, the auxiliary support device 4 provides auxiliary support to the trolley frame to ensure the stability of the trolley frame during construction.

[0024] Working principle: In the present invention, the lifting height of the support column 3 is adjusted by controlling the telescopic rod of the lifting hydraulic cylinder 5 to be extended and retracted, and the guide telescopic parts 6 are provided on both sides of the lifting hydraulic cylinder 5 to guide the support column 3 when it is lifted and lowered, thereby ensuring the stability of the support column 3 when it is lifted and lowered; when the tunnel trolley is moving, the telescopic rod of the support foot adjustment hydraulic cylinder 13 is controlled to retract, so that the crank 8 can be flipped upward and lifted, so that the support chassis 11 is separated from the bottom surface. When the tunnel trolley is performing construction operations, the telescopic rod of the support foot adjustment hydraulic cylinder 13 is controlled to extend until the support chassis 11 is in contact with the ground for support. At this time, the auxiliary support device 4 provides auxiliary support to the trolley frame to ensure the stability of the trolley frame during construction, and the adjustment and control operation of the auxiliary support device 4 is convenient.

[0025] 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 with an adjustable load-bearing foot suspension, comprising a trolley frame, a lifting device (2) and an auxiliary support device (4), characterized in that: The trolley frame comprises a pair of bottom beam seats (1) and a plurality of groups of support columns (3) connected to the two bottom beam seats (1), a crossbeam being connected between the upper ends of each group of support columns (3), the bottom of the support columns (3) being a support base (301), and ribs (302) being welded to the upper surface of the support base (301) on both sides of the bottom of the support columns (3), a lifting device (2) being arranged between the bottom of the support base (301) and the bottom beam seat (1), and an auxiliary support device (4) being arranged at the interval between each group of support columns (3) on the bottom beam seat (1), the auxiliary support device (4) comprising a hinge seat (7), a suspension support foot and a support foot adjustment member The hinge seat (7) is welded to the outer side wall of the bottom beam seat (1), and the hinge seat (7) is hinged with a suspension support leg, the suspension support leg comprises a crank (8), a shock absorbing assembly (9), a support block (10) and a support chassis (11), one end of the crank (8) is hinged with the hinge seat (7), the outer end of the crank (8) is connected to the support block (10) through the shock absorbing assembly (9), the lower end of the support block (10) is connected to the support chassis (11), the suspension support leg is connected to a support leg adjustment component, the support leg adjustment component comprises a support plate frame (12) and a support leg adjustment hydraulic cylinder (13), the support plate frame (12) is an "L"-shaped support plate body and is fixed to the support plate body by bolts. On the bottom beam seat (1), the outer side wall of the support plate frame (12) is hinged to one end of a support leg adjustment hydraulic cylinder (13), and the end of a telescopic rod at the other end of the support leg adjustment hydraulic cylinder (13) is hinged to the upper end of the outer end of the crank (8); the lifting device (2) comprises a lifting hydraulic cylinder (5) and a guide telescopic member (6), the bottom of the lifting hydraulic cylinder (5) is fixed to the upper surface of the bottom beam seat (1) by bolts, and the upper end of the telescopic rod of the lifting hydraulic cylinder (5) is fixedly connected to the lower surface of the support base (301); both sides of the lifting hydraulic cylinder (5) are provided with a guide telescopic member (6), and the guide telescopic member (6) comprises an outer guide cylinder (14) and a guide cylinder (15) which are mutually sleeved. The inner guide rod (15) and the bottom of the outer guide cylinder (14) are fixedly connected to the bottom beam seat (1) by bolts, and the upper end of the inner guide rod (15) is fixedly connected to the lower surface of the support base (301); the shock absorbing assembly (9) comprises a shock absorbing sleeve (16) and a shock absorbing inner rod (17) which are fitted together, and a shock absorbing spring (18) which is sleeved outside the shock absorbing sleeve (16) and the shock absorbing inner rod (17); the lower end of the shock absorbing sleeve (16) is fixedly welded to the support block (10), the upper end of the shock absorbing inner rod (17) is fixedly connected to the end of the crank (8), and the two ends of the shock absorbing spring (18) are respectively connected to the crank (8) and the support block (10) in abutting relation.

2. The tunnel trolley with adjustable load-bearing foot suspension according to claim 1, characterized in that: The lower end of the support block (10) is provided with a hinged ball end (19), and the hinged ball end (19) is hingedly connected to the upper end of the support chassis (11).

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