Gantry pressing device on subway roof

Abstract

The utility model discloses a subway roof gantry pressing device which comprises a portal frame, a pressing mechanism and a supporting frame, the portal frame is provided with the pressing mechanism, the pressing mechanism comprises a first hydraulic cylinder, a second hydraulic cylinder and a third hydraulic cylinder, the supporting frame is arranged below the portal frame, and an arc roof to be pressed is arranged on the supporting frame. A cushion block is arranged between the lower end face of the arc-shaped car roof and the supporting frame, the radian of the upper end face of the cushion block is matched with the radian of the lower end face of the arc-shaped car roof, aluminum pressing heads are arranged at the telescopic ends of the first hydraulic cylinder, the second hydraulic cylinder and the third hydraulic cylinder, the aluminum pressing heads face the arc-shaped car roof, and the car roof is pressed through the aluminum pressing heads. The three hydraulic cylinders are arranged, so that the car roofs with different radians can be pressed and adjusted only by replacing different cushion blocks, the adaptability is wide, the compatibility is high, and the car roof adjusting and repairing device can be suitable for being used in car roof adjusting and repairing procedures of various subway projects.

Description

Technical Field

[0001] The utility model relates to the field of subway car body manufacturing, in particular to a subway car roof gantry pressing device. Background Art

[0002] With the development of my country's economy, the scale of cities continues to expand, the population is increasing, and urban traffic congestion is becoming increasingly serious. The development of urban rail transit has become an inevitable choice for large and medium-sized cities in my country to develop public transportation and alleviate traffic congestion. The rapid development of urban rail transit has also led to a leap in the manufacturing technology of urban rail vehicles. At present, there are more than 30,000 aluminum alloy urban rail vehicles and railway transport vehicles in operation, and some developing countries are also vigorously developing aluminum alloy car bodies and have the ability to mass-produce aluminum alloy car bodies.

[0003] During the production of the vehicle body, the roof needs to be pressed and stabilized when adjusting the roof and installing parts. However, due to the curvature of the roof, the general pressing mechanism cannot press it well. When welding the roof or installing parts, the welding quality cannot be guaranteed, which reduces production efficiency. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the production efficiency in the prior art is low and the quality of the roof welding cannot be effectively guaranteed.

[0005] In order to solve the above technical problems, a technical solution provided by the utility model is:

[0006] A subway car roof gantry clamping device comprises a gantry, a clamping mechanism and a support frame, wherein the gantry is provided with the clamping mechanism, and the clamping mechanism comprises a first hydraulic cylinder, a second hydraulic cylinder and a third hydraulic cylinder, the support frame is provided below the gantry, a curved car roof to be clamped is provided on the support frame, a cushion block is provided between the lower end surface of the curved car roof and the support frame, and the curvature of the upper end surface of the cushion block matches the curvature of the lower end surface of the curved car roof.

[0007] Furthermore, the telescopic ends of the first hydraulic cylinder, the second hydraulic cylinder and the third hydraulic cylinder are all provided with aluminum pressing heads, and the aluminum pressing heads face the curved roof. The roof is pressed by the aluminum pressing heads, and the first hydraulic cylinder, the second hydraulic cylinder and the third hydraulic cylinder are respectively distributed at the left end, the middle part and the right end part of the roof, so as to facilitate comprehensive pressing of the roof.

[0008] Furthermore, the aluminum pressing head is connected to the telescopic end on the first hydraulic cylinder, the second hydraulic cylinder or the third hydraulic cylinder by a ball head and a ball socket, which facilitates the pressing of the roof at an arc position. Through the rotation of the ball head and the ball socket, the contact surface between the aluminum pressing head and the upper end surface of the roof is more closely fitted, and the pressing is also more closely fitted.

[0009] Furthermore, the first hydraulic cylinder, the second hydraulic cylinder and the third hydraulic cylinder can be controlled individually, and each hydraulic cylinder is equipped with a hydraulic system, so that different hydraulic cylinders can be used to press different positions of the curved roof according to needs.

[0010] Furthermore, the pad is an aluminum block, and at least two types of the pad are provided. The curvature of the upper end surface of each pad corresponds to the curved roof with different curvatures. Therefore, for the same gantry and support frame, the three hydraulic cylinders are independent of each other, and the distance between them is adjustable with the width of the roof. By simply replacing different pads, the roofs with different curvatures can be adjusted. It has wide adaptability and compatibility, and can be used in the roof adjustment processes of various subway projects.

[0011] While the first hydraulic cylinder, the second hydraulic cylinder and the third hydraulic cylinder apply downward pressure to the roof, the pad can provide an upward supporting force to the roof, so that the roof can reach a good welding state under the joint action of the upper and lower pressures and the supporting forces, which can reduce the adjustment and repair efforts, improve production efficiency and ensure welding quality.

[0012] Furthermore, a foot pump is provided between the lower end surface of the arc-shaped roof and the support frame, which can meet the needs of installing high-precision components, ensure the installation size requirements, and improve product quality.

[0013] Furthermore, the gantry includes two columns and a crossbeam, the crossbeam is an I-shaped steel, the upper end surfaces of the two columns are connected together through the crossbeam, and the first hydraulic cylinder, the second hydraulic cylinder and the third hydraulic cylinder are respectively arranged side by side on the crossbeam through corresponding moving carts.

[0014] Furthermore, the mobile trolley includes a pulley and a slide frame, the lower end surface of the slide frame is provided with the corresponding first hydraulic cylinder or second hydraulic cylinder or third hydraulic cylinder, and the upper end surface of the slide frame is provided with symmetrical pulleys, and the slide frame is clamped on the I-shaped steel by using the symmetrical pulleys.

[0015] Furthermore, limit bolts are provided at both ends of the I-shaped steel to prevent the moving trolley from sliding out of the crossbeam.

[0016] The beneficial effects of the utility model are:

[0017] 1. The three hydraulic cylinders in this device are independent of each other, and the distance between them can be adjusted with the width of the roof. Under the same gantry and support frame, the roofs of different curvatures can be adjusted by simply replacing different pads. It has wide adaptability and compatibility, and can be used in the roof adjustment procedures of various subway projects.

[0018] 2. In this device, the first hydraulic cylinder, the second hydraulic cylinder and the third hydraulic cylinder are used to apply downward pressure to the roof, while the pad can provide an upward supporting force to the roof, so that the roof can reach a good welding state under the joint action of the upper and lower pressures and the supporting forces, which can reduce the adjustment and repair efforts, improve production efficiency and ensure welding quality.

[0019] In addition, a foot pump can be used locally under the curved roof to solve the needs of installing high-precision components, ensure installation size requirements, and improve product quality.

[0020] In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the description of the embodiments are briefly introduced below. Obviously, the drawings described below are only two of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a structural schematic diagram of a subway car roof gantry clamping device in an embodiment.

[0023] In the figure, 1-column, 2-crossbeam, 3-first hydraulic cylinder, 4-second hydraulic cylinder, 5-third hydraulic cylinder, 6-pulley, 7-sliding frame, 8-, 9-support frame, 10-arc roof, 11-pad. DETAILED DESCRIPTION

[0024] The embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as being limited to the embodiments described herein. Instead, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not intended to limit the scope of protection of the present invention.

[0025] In the present utility model, unless otherwise clearly stipulated and limited, terms such as "installation", "setting", "connection", "fixation", and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.

[0026] The names of the messages or information exchanged between multiple devices in the implementation manner of the present utility model are only used for illustrative purposes, and are not used to limit the scope of these messages or information.

[0027] Example: Figure 1 As shown,

[0028] A subway car roof gantry clamping device comprises a gantry, a clamping mechanism and a support frame 9, wherein the gantry comprises two columns 1 and a crossbeam 2, wherein the crossbeam 2 is an I-shaped steel, the upper end surfaces of the two columns 1 are connected together by the crossbeam 2, and the lower end surfaces of the two columns 1 are respectively arranged on corresponding slideways on the ground, so that the gantry can be moved to different positions as needed.

[0029] The clamping mechanism comprises a first hydraulic cylinder 3 , a second hydraulic cylinder 4 and a third hydraulic cylinder 5 , and the first hydraulic cylinder 3 , the second hydraulic cylinder 4 and the third hydraulic cylinder 5 are respectively arranged side by side on the crossbeam 2 through corresponding moving trolleys.

[0030] The mobile trolley includes a pulley 6 and a sliding frame 7. The lower end surface of the sliding frame 7 is rigidly connected to the base of the corresponding first hydraulic cylinder 3 or the second hydraulic cylinder 4 or the third hydraulic cylinder 5. Two pairs of symmetrical pulleys 6 are arranged on the upper end surface of the sliding frame 7. The sliding frame 7 is clamped on the I-shaped steel by using the two pairs of symmetrical pulleys 6. Limiting bolts are arranged at both ends of the I-shaped steel to prevent the mobile trolley from sliding out of the beam 2.

[0031] The telescopic ends of the first hydraulic cylinder 3 , the second hydraulic cylinder 4 and the third hydraulic cylinder 5 are all provided with aluminum pressing heads 8 .

[0032] A support frame 9 is fixed at a position between the two slides, on which a curved roof 10 to be compressed is arranged, and a cushion block 11 is arranged between the lower end surface of the curved roof 10 and the contact surface of the support frame 9, and the curvature of the upper end surface of the cushion block 11 matches the curvature of the lower end surface of the curved roof 10.

[0033] One end of the first hydraulic cylinder 3, the second hydraulic cylinder 4 and the third hydraulic cylinder 5 with the aluminum pressing head 8 faces the upper end surface of the curved roof 10, and the aluminum pressing head 8 is used to press the roof. The first hydraulic cylinder 3, the second hydraulic cylinder 4 and the third hydraulic cylinder 5 are respectively distributed at the left end, the middle part and the right end part of the roof, so as to facilitate comprehensive pressing in the width direction of the roof.

[0034] The aluminum pressing head 8 is connected to the telescopic end on the first hydraulic cylinder 3, the second hydraulic cylinder 4 or the third hydraulic cylinder 5 by a ball head and a ball socket. Through the rotation of the ball head and the ball socket, the contact surface between the aluminum pressing head 8 and the upper end surface of the roof is more closely fitted, and the pressing is also more closely fitted, which facilitates the pressing of the curved position of the roof.

[0035] The first hydraulic cylinder 3, the second hydraulic cylinder 4 and the third hydraulic cylinder 5 can all be controlled individually, and each hydraulic cylinder is equipped with a set of hydraulic systems, so that different hydraulic cylinders can be used according to needs.

[0036] When working, first fix the pad 11 of the corresponding curvature at the corresponding position on the support frame 9, then put the roof on the support frame 9, the roof and the support frame 9 are in contact and connected through the pad 11, and then move the gantry to the position where the roof needs to be adjusted. After reaching the position, according to needs, use different hydraulic systems to control the corresponding first hydraulic cylinder 3, second hydraulic cylinder 4 and third hydraulic cylinder 5 to move downward until the aluminum pressure head 8 thereon is pressed tightly on the upper end surface of the roof. While the first hydraulic cylinder 3, the second hydraulic cylinder 4 and the third hydraulic cylinder 5 give a downward pressure to the roof, the pad 11 can provide an upward supporting force to the roof, so that the roof can reach a good welding state under the joint action of the upper and lower pressures and the supporting force, which can reduce the adjustment effort, improve production efficiency and ensure welding quality.

[0037] If the supporting force of the cushion block 11 cannot meet the installation requirements of high-precision parts, a foot pump can be used locally under the curved roof 10 to ensure the installation size requirements, improve product quality, and meet the installation requirements of high-precision parts.

[0038] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A subway car roof gantry clamping device, comprising a gantry, a clamping mechanism and a support frame, characterized in that: The clamping mechanism is arranged on the gantry, and the clamping mechanism includes a first hydraulic cylinder, a second hydraulic cylinder and a third hydraulic cylinder. The support frame is arranged below the gantry, and the curved roof to be clamped is arranged on the support frame. A cushion block is arranged between the lower end surface of the curved roof and the support frame, and the curvature of the upper end surface of the cushion block matches the curvature of the lower end surface of the curved roof.

2. A subway car roof gantry clamping device according to claim 1, characterized in that: The pad is an aluminum block, and at least two types of pads are provided. The curvature of the upper end surface of each pad corresponds to the curved roof with a different curvature.

3. A subway car roof gantry clamping device according to claim 1 or 2, characterized in that: A foot pump is also arranged between the lower end surface of the arc-shaped roof and the support frame.

4. A subway car roof gantry clamping device according to claim 3, characterized in that: The gantry includes two columns and a crossbeam, the crossbeam is an I-shaped steel, the upper end surfaces of the two columns are connected together through the crossbeam, and the first hydraulic cylinder, the second hydraulic cylinder and the third hydraulic cylinder are respectively arranged side by side on the crossbeam through corresponding moving carts.

5. A subway car roof gantry clamping device according to claim 4, characterized in that: The telescopic ends of the first hydraulic cylinder, the second hydraulic cylinder and the third hydraulic cylinder are all provided with aluminum pressing heads, the aluminum pressing heads face the curved roof, and the aluminum pressing heads are connected to the telescopic ends of the first hydraulic cylinder, the second hydraulic cylinder or the third hydraulic cylinder by a ball head and ball socket.

6. A subway car roof gantry clamping device according to claim 5, characterized in that: The mobile trolley includes a pulley and a sliding frame. The corresponding first hydraulic cylinder, second hydraulic cylinder or third hydraulic cylinder is arranged on the lower end surface of the sliding frame. Symmetrical pulleys are arranged on the upper end surface of the sliding frame. The sliding frame is clamped on the I-shaped steel by using the symmetrical pulleys.

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