A vertical shaft narrow space pipeline welding platform

Abstract

A kind of vertical shaft narrow space pipeline welding platform, the bottom end top of same frequency hydraulic jack (8) is equipped with base (9) and lower support platform (5) respectively, driving motor (7) rotates through 45° bevel gear drive 45° transmission gear (6) rotation, 45° transmission gear (6) rotation in turn drives the rotation of the inner disc, the inner disc rotation finally drives the rotation of upper support platform (3). Four synchronous limiters (2) are connected above upper support platform (3), and laser positioner (1).The utility model can make large seamless steel pipe welding operation can be rotated, more labor-saving in the processing process, so as to improve the quality of large seamless steel pipe near wall side part welding processing product.

Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, and specifically provides a pipe welding platform in a narrow vertical shaft space. Background Technology

[0002] For situations where there is insufficient space for welding operations when installing pipes side-by-side close to walls in confined spaces, such as for vertical heating and air conditioning water pipes, this device can lift and rotate the entire pipe, facilitating installation. It has advantages such as wide application range, convenient operation, and stable overall performance, and is often used for pipe welding operations in building construction shafts.

[0003] Taking the welding of large seamless steel pipes as an example, the traditional method is to use an electric hoist to lift the pipes section by section for welding. This is a dangerous and high-risk project, as the working space inside the shaft is limited. The welding seams of the pipes near the wall often have insufficient operating space, and the construction quality cannot be guaranteed. If rotation is required before welding, manual rotation and movement are necessary, which is quite laborious. This operation also carries great risks and concerns personal safety.

[0004] Therefore, it is necessary to invent a welding platform for pipes in confined vertical shafts to improve the traditional welding and processing method for large seamless steel pipes. Utility Model Content

[0005] The purpose of this utility model is to provide a welding platform for pipes in a narrow vertical shaft, which allows for rotation during the welding of large seamless steel pipes, making the processing less labor-intensive and thus improving the quality of the welded parts of large seamless steel pipes near the wall.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] A welding platform for pipes in a narrow vertical shaft space, characterized in that it includes a laser positioning device 1, a synchronous limiter 2, an upper support platform 3, a rotary support 4, a lower support platform 5, a drive motor 7, a 45° inclined transmission gear 6, a synchronous hydraulic jack 8, and a base 9; wherein: four synchronous hydraulic jacks 8 are connected in the middle of the base 9, the bottom ends of the synchronous hydraulic jacks 8 are fixed to the base 9 at the same horizontal plane, and the top ends of the synchronous hydraulic jacks 8 are fixed to the lower support platform 5;

[0008] The drive motor 7 is fixed to the bottom of the lower support platform 5. The end of the drive motor 7 shaft is equipped with a 45° bevel gear. The 45° bevel gear meshes with the 45° transmission gear 6 of the lower support platform 5. The drive motor 7 rotates and drives the 45° transmission gear 6 to rotate through the 45° bevel gear. The drive motor 7 is controlled by wireless remote control.

[0009] The slewing support 4 is installed between the upper support platform 3 and the lower support platform 5. The slewing support 4 is divided into an inner disk and an outer disk, which are filled with ball bearings to achieve relative rotation between the inner and outer disks. The outer disk is fixed to the lower support platform 5, and the inner disk is fixed to the upper support platform 3. The inner disk is equipped with a 45° bevel gear 6. The drive motor 7 rotates and drives the 45° bevel gear 6 to rotate. The rotation of the 45° bevel gear 6 drives the inner disk to rotate, and the rotation of the inner disk ultimately drives the upper support platform 3 to rotate.

[0010] Four synchronous limiters 2 are connected above the upper support platform 3 to fix the welded pipe; a laser positioning device 1 is installed above the upper support platform 3, which can fire a vertical laser to calibrate the vertical offset of the pipe.

[0011] This utility model also has the following additional technical features:

[0012] As a further specific optimization of the technical solution of this utility model: the upper support platform 3 has four moving slots for the synchronous limiters 2 in four directions; one synchronous limiter 2 is installed in each slot, the four synchronous limiters 2 can be controlled simultaneously, and the four synchronous limiters 2 can achieve wireless control; the inner side of the synchronous limiter 2 is equipped with a rubber plate to increase friction, which is suitable for different pipe diameters.

[0013] As a further specific optimization of the technical solution of this utility model: four hydraulic jacks 8 are used as supports, and the four hydraulic jacks 8 are controlled by a wireless control host at the same frequency for lifting and lowering; the wireless control host controls the lifting and lowering of the hydraulic jacks 8 at the same frequency, the rotation of the drive motor 7, and the movement of the synchronous limit switch 2, and is equipped with a remote controller to realize remote control.

[0014] Compared with the prior art, the advantages of this utility model are:

[0015] Advantage 1: Simple operation, high degree of automation, and wireless control of platform rotation and lifting.

[0016] Advantage 2: It allows for the overall rotation of vertical pipes, saving labor costs. It also facilitates work in confined spaces by rotating the pipes, thus improving construction quality.

[0017] Advantage 3: It can provide support for vertical pipes and has laser calibration to improve the coaxiality of pipe installation.

[0018] Advantage 4: It facilitates the installation of pipe supports. After the load-bearing supports and fixed supports are installed, they can be lowered and moved away for multiple operations. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0021] Figure 3 This is a side view of the structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the usage state of this utility model;

[0023] Explanation of reference numerals in the attached diagram: 1. Laser positioning device; 2. Synchronous limit switch; 3. Upper support platform; 4. Rotary support; 5. Lower support platform; 7. Drive motor; 6. 45° inclined transmission gear; 8. Synchronous hydraulic jack; 9. Base. Detailed Implementation

[0024] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings.

[0025] A vertical shaft confined space pipe welding platform includes a laser positioning device 1, a synchronous limiter 2, an upper support platform 3, a slewing support 4, a lower support platform 5, a drive motor 7, a 45° inclined transmission gear 6, synchronous hydraulic jacks 8, and a base 9. The base 9 is connected to four synchronous hydraulic jacks 8 in the middle. The bottom ends of the synchronous hydraulic jacks 8 are fixed to the base 9 at the same horizontal plane, and the top ends of the synchronous hydraulic jacks 8 are fixed to the lower support platform 5. Four hydraulic jacks 8 are used for support, and their lifting and lowering are controlled synchronously by a wireless control host.

[0026] The drive motor 7 is fixed to the bottom of the lower support platform 5. The end of the drive motor 7 shaft is equipped with a 45° bevel gear. The 45° bevel gear meshes with the 45° transmission gear 6 of the lower support platform 5. The drive motor 7 rotates and drives the 45° transmission gear 6 to rotate through the 45° bevel gear. The drive motor 7 is controlled by wireless remote control.

[0027] The slewing support 4 is installed between the upper support platform 3 and the lower support platform 5. The slewing support 4 is divided into an inner disk and an outer disk, which are filled with ball bearings to achieve relative rotation between the inner and outer disks. The outer disk is fixed to the lower support platform 5, and the inner disk is fixed to the upper support platform 3. The inner disk is equipped with a 45° bevel gear 6. The drive motor 7 rotates and drives the 45° bevel gear 6 to rotate. The rotation of the 45° bevel gear 6 drives the inner disk to rotate, and the rotation of the inner disk ultimately drives the upper support platform 3 to rotate.

[0028] Four synchronous limiters 2 are connected above the upper support platform 3 for fixing the welded pipe; four synchronous limiter 2 moving slots are opened in four directions on the upper support platform 3; one synchronous limiter 2 is installed in each slot, and the four synchronous limiters 2 can be controlled simultaneously and wirelessly; the inner side of the synchronous limiter 2 is equipped with a rubber plate to increase friction, which is suitable for different pipe diameters.

[0029] A laser positioning device 1 is installed above the upper support platform 3. The laser positioning device 1 can emit a vertical laser to calibrate the vertical offset of the pipeline.

[0030] The wireless control host controls the lifting of the synchronous hydraulic jack 8, the rotation of the drive motor 7, and the movement of the synchronous limit switch 2. It is also equipped with a remote controller to achieve remote control.

[0031] Installation method of pipe welding platform in confined vertical shaft space:

[0032] Place the base 9 on the ground, and weld the four hydraulic jacks 8 to the base 9. These four hydraulic jacks 8 are of the same specification and model and can be controlled to lift and lower simultaneously.

[0033] The lower support platform 5 is fixed to the upper end face of the hydraulic jack 8 to ensure that the front of the lower support platform 5 is horizontal.

[0034] The outer disc of the slewing bearing 4 is fixed to the lower support platform 5, the upper side of the inner disc is fixed to the upper support platform 3, and the lower side is fixed to the 45° inclined transmission gear 6 as one piece. Ball bearings are used to fill the space between the inner and outer discs of the slewing bearing 4, enabling rotation of the inner and outer discs.

[0035] The drive motor 7 is fixed to the lower support platform 5. The drive shaft of the drive motor 7 is connected to the 45° helical transmission gear 6. The 45° helical transmission gear 6 rotates, thereby driving the upper support platform 3 to rotate.

[0036] Synchronous limiters 2 are installed in slots on the upper support platform 3. All four limiters can be controlled simultaneously and move at the same speed, ensuring that the pipe can be concentric with the platform after clamping.

[0037] Laser positioning device 1 is installed at the center of the upper support platform 3. It can fire a vertical laser, and the laser axis is the same as that of the vertically installed pipe. This ensures the coaxiality of the pipe after welding.

[0038] The sequence of use for the pipe welding platform in the confined space of a vertical shaft is as follows:

[0039] Step 1: Place the pipe to be welded stably on the upper support platform 3, and use the synchronous limiter 2 to fix the pipe securely.

[0040] Step 2: Turn on the laser positioning device 1 to calibrate the verticality of the pipe.

[0041] Step 3: Turn on the drive motor 7, drive the 45° helical transmission gear 6 to rotate, which in turn drives the upper support platform 3 to rotate, so that the pipe can rotate smoothly and the welding operation can be carried out.

[0042] Step 4: After all welding operations are completed, install the vertical pipe support bracket and fixed bracket to ensure that the riser is firmly fixed; use the same frequency hydraulic jack 8 to lower the platform height and then remove the welding platform.

[0043] The above detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

Claims

1. A pipe welding platform in a confined vertical shaft space, characterized in that: It includes a laser positioning device (1), a synchronous limiter (2), an upper support platform (3), a slewing support (4), a lower support platform (5), a drive motor (7), a 45° inclined transmission gear (6), a synchronous hydraulic jack (8), and a base (9); wherein: the base (9) is connected to four synchronous hydraulic jacks (8) in the middle, the bottom end of the synchronous hydraulic jack (8) is fixed to the base (9) at the same horizontal plane, and the top end of the synchronous hydraulic jack (8) is fixed to the lower support platform (5); The drive motor (7) is fixed to the bottom of the lower support platform (5). The end of the drive motor (7) shaft is equipped with a 45° bevel gear. The 45° bevel gear meshes with the 45° transmission gear (6) of the lower support platform (5). The drive motor (7) rotates and drives the 45° transmission gear (6) to rotate through the 45° bevel gear. The slewing support (4) is installed between the upper support platform (3) and the lower support platform (5). The slewing support (4) is divided into an inner disk and an outer disk. Ball bearings are used to fill the space between the inner disk and the outer disk to achieve relative rotation between the inner disk and the outer disk. The outer disk is fixed to the lower support platform (5), and the inner disk is fixed to the upper support platform (3). The inner disk is equipped with a 45° bevel gear (6). The drive motor (7) rotates and drives the 45° bevel gear (6) to rotate. The rotation of the 45° bevel gear (6) drives the inner disk to rotate. The rotation of the inner disk ultimately drives the upper support platform (3) to rotate. Four synchronous limiters (2) are connected above the upper support platform (3); a laser positioning device (1) is installed above the upper support platform (3).

2. The vertical shaft confined space pipe welding platform according to claim 1, characterized in that: The upper support platform (3) has four synchronous limiters (2) moving slots in four directions; each slot is equipped with a synchronous limiter (2), and the four synchronous limiters (2) can be controlled simultaneously and wirelessly; the inner side of the synchronous limiters (2) is equipped with a rubber plate to increase friction.

3. The vertical shaft confined space pipe welding platform according to claim 1, characterized in that: Four hydraulic jacks (8) are used as supports. The four hydraulic jacks (8) are controlled by a wireless control host to lift and lower in sync. The wireless control host controls the lifting and lowering of the hydraulic jacks (8), the rotation of the drive motor (7), and the movement of the synchronous limit switch (2).

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