Underframe beam repairing device of double-layer automobile transport vehicle

Abstract

The utility model relates to the technical field of repairing devices, in particular to a chassis beam repairing device of a double-layer automobile transport vehicle. The device comprises a portal frame erected on a bottom frame of the double-layer automobile transport vehicle, a pair of hanging rings are arranged on the top of the portal frame, connecting rods are movably arranged at the bottoms of two stand columns of the portal frame, and a pair of moving assemblies are arranged at the bottom of the portal frame. And a hydraulic jack is clamped between a stand column on one side of the portal frame and a side beam of a bottom frame of the double-layer automobile transport vehicle. After a deformation position is positioned, the portal frame and the hydraulic jack work cooperatively, the portal frame serves as a rigid support and a positioning reference and provides stable counter-acting force for the hydraulic jack, the portal frame and the hydraulic jack are matched to accurately apply pressure to the deformation position of the side beam, and compared with a traditional heating hammering mode, the pressure applying position and force can be accurately controlled; the repairing precision is greatly improved, the problem that the straightness of the edge beam seriously exceeds the limit is effectively solved, and the repaired underframe better meets the technological requirements.

Description

TECHNICAL FIELD

[0001] The utility model relates to repair device technical field, especially a kind of bottom frame beam repair device of double-deck truck. BACKGROUND

[0002] In the manufacturing field of double-deck truck, the structure and manufacturing process of the bottom frame play a key role in the quality of the vehicle. At present, the bottom frame of double-deck truck is mainly welded by double-end ball flat steel side beam and cross beam, and the vehicle weld is a through weld. Although this welding method can ensure the connection strength of the structure, it will cause large deformation of the vehicle after welding.

[0003] To solve the deformation problem, the industry generally uses flame correction as the main way of subsequent repair and adjustment, and mainly targets the side beam for baking adjustment. However, this method has serious defects. After flame baking, the stress release of the vehicle will cause the side beam to deform again at the heated position, and the straightness of the side beam is severely out of limit, with a deformation of 10-15 MM per meter, and the deformation position is as many as dozens. It cannot meet the process requirements at all.

[0004] Previously, at the lower bottom frame repair station, the method of hammering to eliminate deformation after heating the deformed position of the side beam was used to solve the problem of local deformation of the side beam. This method not only requires workers to work with high intensity, but also has a high risk coefficient, and the repair and adjustment effect is not satisfactory. In addition, this method greatly increases the gas consumption of oxygen and propane, thereby causing a significant increase in production cost. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a bottom frame beam repair device for double-deck truck to solve the problem raised in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme, which comprises a gantry erected on the bottom frame of the double-deck truck, a pair of lifting eyes are provided at the top of the gantry, a connecting rod is movably arranged at the bottom of the two upright columns of the gantry, a pair of moving assemblies are arranged at the bottom of the gantry, and a hydraulic jack is arranged between one side upright column of the gantry and the side beam of the bottom frame of the double-deck truck.

[0007] As a preferred scheme of the utility model, the moving assembly comprises a reverse C-shaped shell arranged at the bottom of the gantry, a pair of moving wheels are movably arranged in the reverse C-shaped shell, and the moving wheels are arranged at the top of the side beam of the bottom frame of the double-deck truck.

[0008] As the utility model discloses preferred scheme, two uprights of the portal frame are provided with a pair of L-shaped fixing pieces respectively, and a pair of L-shaped fixing pieces of one side are provided with a placing supporting plate between, the placing supporting plate is provided with a supporting seat, and the supporting seat is arranged on the side of the chassis side beam of the double-layer automobile transport vehicle away from the hydraulic jack.

[0009] As the utility model discloses preferred scheme, the bottom of the two side uprights of the portal frame is provided with a fixed plate, and the connecting rod is provided with a connecting lug on both sides, and the fixed plate is located in the connecting lug, and the connecting lug and the fixed plate are fixed through bolt groups

[0010] As the utility model discloses preferred scheme, the bottom of the two side uprights of the portal frame is provided with a fixed plate, and the connecting rod is provided with a connecting lug on both sides, and the fixed plate is located in the connecting lug, and the connecting lug and the fixed plate are fixed through bolt groups

[0011] Compared with the prior art, the above technical scheme of the utility model has the following beneficial technical effects:

[0012] 1, the utility model discloses when positioning to the deformation position, the portal frame and the hydraulic jack cooperate, the portal frame is as rigid support and positioning reference, provides stable reaction force for the hydraulic jack, and the cooperation of both can accurately press the deformation of the side beam, compared with the traditional heating hammering mode, can accurately control the pressure position and strength, greatly improves the repair accuracy, effectively solves the problem that the straightness of the side beam seriously exceeds the limit, and makes the repaired chassis more meet the process requirements.

[0013] 2, the utility model discloses discarding the high-strength labor mode of eliminating deformation after traditional manual heating and hammering, and workers only need to operate the hydraulic jack and carry out some auxiliary installation and positioning work, greatly reduce physical consumption, reduce labor intensity, and also reduce the risk of operation failure caused by high-strength labor.

[0014] 3, the traditional repair mode consumes a large amount of oxygen and propane for flame correction, and the cost is high, the device adopts mechanical pressure repair, does not need to consume such gas, greatly reduces energy cost, and the efficient and accurate repair process reduces repeated operation caused by improper repair, further saves manpower and time cost, and improves overall production efficiency.

[0015] 4, the utility model discloses through the "mouth" shape closed structure of the portal frame, fastening through the connecting rod and bolt group, the stability is extremely good, the inverted C-shaped shell of the moving assembly effectively restricts the moving wheel, guarantees smooth movement, and enhances the overall structural strength, the top triangular reinforcing rib plate utilizes the principle of triangular stability, disperses stress, so that the portal frame is not easy to deform and damage under complex stress, and the service life of the repair device is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the whole structure schematic view of the utility model.

[0017] Figure 2 The utility model discloses a portal frame structure schematic diagram;

[0018] Figure 3 The utility model discloses a mobile subassembly structure schematic diagram;

[0019] Figure 4 The utility model discloses a connecting rod structure schematic diagram.

[0020] Fig. 1 is a portal frame, 10 is a lifting ring, 11 is a fixed plate, 12 is an L-shaped fixing part, 13 is a triangular reinforcing rib plate, 14 is a placing support plate, 2 is a mobile subassembly, 20 is a reverse C-shaped shell, 21 is a mobile wheel, 3 is a connecting rod, 30 is a connecting lug, 31 is a bolt set, 4 is a support seat, 5 is a hydraulic jack. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantage of the utility model more clearly, below, combining with specific implementation and referring to the drawings, the utility model is explained in further detail. It should be understood that these descriptions are only exemplary, and are not to limit the scope of the utility model. In addition, in the following description, the description of the known structure and technology is omitted to avoid unnecessary confusion of the concept of the utility model.

[0022] As Figures 1-4 The utility model discloses a bottom frame beam repair device of double-deck automobile transport vehicle, it includes portal frame 1, it is set up on the bottom frame of double-deck automobile transport vehicle, and a pair of lifting rings 10 are symmetrically arranged on the top of portal frame 1, through the pair of lifting rings 10, portal frame 1 can be accurately hoisted to the predetermined position above the bottom frame by using the hoisting equipment such as travelling crane, and the foundation is laid for subsequent repair operation, and a pair of mobile subassemblies 2 are installed at the bottom of portal frame 1, so that it can be flexibly moved on the bottom frame and quickly positioned to the part needing repair.

[0023] Mobile subassembly 2 is composed of reverse C-shaped shell 20 and a pair of mobile wheels 21, and reverse C-shaped shell 20 is fixedly installed at the bottom of portal frame 1, and the internal space can be moved wheel 21 activity, when using, mobile wheel 21 is placed on the top of the side beam of double-deck automobile transport vehicle, and mobile wheel 21 is in close contact with the top of the side beam, and since the constraint of reverse C-shaped shell 20 to mobile wheel 21, mobile wheel 21 can only roll along the direction of the top of the side beam, so that the stable movement of portal frame 1 in the longitudinal direction of the bottom frame is realized, and it is ensured that the repair device can conveniently reach each deformation position of the side beam of the bottom frame.

[0024] The two uprights of the portal frame 1 are each provided with a fixing plate 11, and the connecting rod 3 is provided with connecting ears 30 symmetrically on both sides. When the portal frame 1 needs to be fixed in the side beam deformation position, the fixing plate 11 is inserted into the connecting ears 30, and then the bolt set 31 is used to pass through the corresponding bolt holes of the connecting ears 30 and the fixing plate 11 and is tightened, so that the connecting rod 3 is stably connected with the bottom of the upright. At this time, the portal frame 1 forms a stable "mouth" shaped structure, which can withstand various external forces without displacement or shaking during the subsequent repair process.

[0025] A hydraulic jack 5 is arranged between one of the side uprights of the portal frame 1 and the side beam of the double-decker vehicle transport vehicle, which is a key component for providing repair power. After starting, it can apply pressure to the deformed side beam to restore it to its original state. In order to ensure that the side beam is stressed evenly and stably during the repair process, a pair of L-shaped fixing pieces 12 are respectively arranged on the two uprights of the portal frame 1. A supporting plate 14 is arranged between the L-shaped fixing pieces 12 on one side. After the supporting plate is stably installed, a supporting seat 4 is arranged above it. The top of the supporting seat 4 is in close contact with the side of the side beam of the double-decker vehicle transport vehicle away from the hydraulic jack 5. In this way, when the hydraulic jack 5 exerts pressure, the supporting seat 4 can provide a counteracting support force, which cooperates with the hydraulic jack 5 to ensure the stability of the side beam during the repair process and prevent unnecessary displacement or secondary deformation of the side beam.

[0026] In order to further enhance the overall strength and stability of the portal frame 1, triangular reinforcing rib plates 13 are arranged on both sides of the bottom of the portal frame 1. The three corners of the triangular reinforcing rib plate 13 are respectively connected with the top cross beam and the two side uprights of the portal frame 1. By using the stability principle of the triangle, various stresses borne by the portal frame 1 during hoisting and repair operations can be effectively dispersed and borne, so as to avoid deformation or damage of the portal frame 1 due to excessive stress, and to ensure safe and reliable operation of the entire repair device.

[0027] In the repair of double-layer automobile transport vehicle underframe beam, through the travelling crane hook hook up two lifting rings 10 on the gantry 1 of the repair device, using the characteristics of the travelling crane vertical lifting and horizontal moving heavy object, the gantry 1 is smoothly hoisted to the upper space of the workpiece to be repaired, using the top of the double-sided automobile transport vehicle underframe side beam as a track, the moving wheel 21 on both sides of the bottom of the gantry 1 is placed, so that the whole repair device can move smoothly in the longitudinal direction of the workpiece, when the gantry 1 moves to the deformation position of the side beam, the connecting rod 3 is used to connect the fixed plate 11 at the bottom of the two columns respectively, and then the bolt set 31 is fastened, so that the gantry 1 forms a closed stable structure of the "mouth" character, so as to withstand various forces without displacement or deformation in the subsequent operation, then the supporting plate 14 is fixed on the two sides L-shaped fixing pieces 12 of the side column, and the supporting seat 4 is placed above the fixed supporting plate, at this time the other side operator manually lifts the hydraulic jack 5, so that the top end of the telescopic rod of the hydraulic jack is accurately aligned with the deformation position of the side beam, finally the hydraulic jack 5 is started, the telescopic rod of the hydraulic jack 5 is stretched out to apply pressure to the deformation position of the side beam, the gantry 1 fixed before is used as a rigid support structure and positioning reference to bear the reaction force, and the two are matched with each other to accurately press the deformation position of the side beam, so that the side beam material produces plastic deformation, thereby straightening and repairing the deformed side beam.

[0028] It should be understood that the above specific embodiments of the present application are only used for illustrative or explanatory purposes of the principles of the present application, and do not constitute a limitation on the present application. Therefore, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present application shall be included in the protection scope of the present application. In addition, the appended claims of the present application are intended to cover all changes and modifications falling within the scope and boundary of the appended claims, or the equivalent forms of such scope and boundary.

Claims

1. A chassis beam repair device for a double-decker car carrier, comprising a gantry (1) mounted on the chassis of the double-decker car carrier, wherein a pair of lifting rings (10) are provided at the top of the gantry (1), characterized in that: The bottom of the two columns of the gantry (1) is provided with connecting rods (3), and the bottom of the gantry (1) is provided with a pair of moving components (2). A hydraulic jack (5) is clamped between one of the columns of the gantry (1) and the side beam of the underframe of the double-layer car transport vehicle.

2. The underframe beam repair device for a double-decker car transporter according to claim 1, characterized in that: The moving component (2) includes an inverted C-shaped shell (20) disposed at the bottom of the gantry (1), and a pair of moving wheels (21) are movably disposed inside the inverted C-shaped shell (20). The moving wheels (21) are disposed on the top of the side beam of the underframe of the double-decker car carrier.

3. The underframe beam repair device for a double-decker car transport vehicle according to claim 1, characterized in that: A pair of L-shaped fasteners (12) are respectively installed on the two columns of the gantry frame (1). A placement plate (14) is provided between the pair of L-shaped fasteners (12) on one side. A support seat (4) is provided on the placement plate (14). The support seat (4) abuts against the side of the underframe side beam of the double-layer car transport vehicle away from the hydraulic jack (5).

4. The underframe beam repair device for a double-decker car carrier according to claim 1, characterized in that: The bottom of the two columns of the gantry frame (1) is provided with a fixing plate (11), and the two sides of the connecting rod (3) are symmetrically provided with connecting ears (30). The fixing plate (11) is located inside the connecting ear (30), and the connecting ear (30) and the fixing plate (11) are fixed together by a bolt group (31).

5. The underframe beam repair device for a double-decker car carrier according to claim 1, characterized in that: The bottom sides of the gantry frame (1) are provided with triangular reinforcing ribs (13).

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