A tool trolley for riser module rail and positioning hole inspection

Abstract

The utility model provides a kind of tool trolley for vertical pipe module track and positioning hole inspection, including body frame, axle support device, gyro wheel axle, gyro wheel, power mechanism, transmission mechanism, cylinder and pin, the body frame is as the load bearing matrix of tool trolley, axle support device is fixed in the body frame bottom, the gyro wheel axle is rotatably connected in the axle support device, gyro wheel is sleeved in the gyro wheel axle both ends, for with the track of vertical pipe module cooperation realizes walking, power mechanism is installed in the body frame, its output end is connected with gyro wheel axle by transmission mechanism, the cylinder is vertically fixed in the body frame top, its axis line corresponds with the deck positioning hole axis line to be checked, the pin is inserted and is arranged in the cylinder, for simulating equipment trolley and the cooperation of deck positioning hole.The utility model simulates equipment trolley operating condition by pneumatic drive tool trolley, shortens construction cycle.

Description

Technical Field

[0001] This utility model relates to the field of shipbuilding technology, and in particular to a tooling trolley for inspecting riser module tracks and positioning holes. Background Technology

[0002] In the construction of FPSO riser modules, there are long tracks for the equipment trolley to travel along, with dozens of hatches distributed between the tracks. When the equipment trolley moves along the tracks to each hatch for operation, it needs to temporarily lock itself in place by inserting its own cylindrical pin into the deck positioning hole. Therefore, the straightness, parallelism, and positional accuracy of the tracks and positioning holes are required to be extremely high. If the deviation exceeds the allowable range, the cylindrical pin of the equipment trolley will not be able to properly insert into the positioning hole, directly affecting work efficiency and safety.

[0003] In existing technologies, after the track is installed, the accuracy verification can only be carried out after the equipment trolley arrives. Furthermore, the positioning holes are often manually measured and drilled, or small holes are drilled first and then corrected later. This process has the following drawbacks: First, the long delivery cycle of the equipment trolley leads to delays in track accuracy inspection and positioning hole processing, severely impacting the construction schedule. Second, the accuracy of manual measurement is greatly affected by operator experience, easily resulting in deviations and increasing the risk of rework. Third, the subsequent correction of positioning holes requires additional manpower and resources, increasing construction costs.

[0004] Therefore, there is an urgent need for a special tooling that can perform track accuracy inspection and positioning hole pre-positioning after track installation and before the equipment trolley arrives, in order to solve the problems of delayed construction period, insufficient accuracy and high cost in the existing technology. Utility Model Content

[0005] To address the aforementioned technical problems, a tooling trolley for inspecting the track and positioning holes of riser modules is provided. The technical means employed in this invention are as follows:

[0006] A tooling trolley for inspecting the track and positioning holes of a riser module includes a main frame, a shaft support device, a roller shaft, rollers, a power mechanism, a transmission mechanism, a cylinder, and a pin. The main frame serves as the load-bearing base of the tooling trolley. The shaft support device is fixed to the bottom of the main frame. The roller shaft is rotatably connected to the shaft support device. The rollers are sleeved on both ends of the roller shaft for cooperating with the track of the riser module to achieve movement. The power mechanism is installed on the main frame, and its output end is connected to the roller shaft through the transmission mechanism. The cylinder is vertically fixed to the top of the main frame, and its axis corresponds to the axis of the deck positioning hole to be inspected. The pin is pluggably inserted into the cylinder to simulate the cooperation between the equipment trolley and the deck positioning hole.

[0007] Furthermore, the transmission mechanism is a chain drive assembly, including a driving sprocket, a driven sprocket, and a chain. The driving sprocket is fixed to the output shaft of the reducer, the driven sprocket is fixed to the roller shaft, and the chain meshes with the driving sprocket and the driven sprocket.

[0008] Furthermore, the transmission mechanism is a gear transmission assembly, including a driving gear and a driven gear that mesh with each other. The driving gear is fixed to the output shaft of the reducer, and the driven gear is fixed to the roller shaft.

[0009] Furthermore, the shaft support device is a bearing housing, and the roller shaft is rotatably connected to the bearing housing via a bearing.

[0010] Furthermore, the inner wall of the cylinder is provided with a guide keyway, and the outer wall of the pin is provided with a guide key that cooperates with the guide keyway.

[0011] Furthermore, the power mechanism includes a pneumatic motor.

[0012] This utility model has the following advantages:

[0013] 1. This utility model uses a pneumatically driven tooling trolley to simulate the operating conditions of the equipment trolley. After the track is installed, precision inspection can be carried out immediately without waiting for the equipment trolley to arrive. This advances the track inspection and positioning hole processing procedures, shortens the construction cycle, and effectively solves the problem of construction delays.

[0014] 2. The pins of the tooling trolley are the same size as the cylindrical pins of the equipment trolley, and the rigidity of the main frame ensures the stability of the detection benchmark. Compared with manual measurement, the detection error of track parallelism and positioning hole position accuracy is controllable, which greatly reduces the rework cost caused by insufficient accuracy.

[0015] 3. It adopts a pneumatic drive system, and the walking speed can be flexibly adjusted through the air source control box; the rollers and pins can be replaced according to the track cross section and positioning hole size of different projects, adapting to the construction needs of various specifications of riser modules. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is the front view of the tooling trolley of the present invention.

[0018] Figure 2 This is a top view of the tooling trolley of the present invention.

[0019] Figure 3 This is a right view of the tooling trolley of the present invention.

[0020] Figure 4 These are the front and top views of the pins used in the tooling trolley of this invention.

[0021] Figure 5 This is the working operation view (main view) of the tooling trolley of the present invention.

[0022] In the diagram, 1 is the main frame, 2 is the cylinder, 3 is the roller shaft, 4 is the roller, 5 is the shaft support device, 6 is the pneumatic motor, 7 is the reducer, 8 is the transmission mechanism, and 9 is the pin. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] like Figures 1-5 As shown in the figure, this utility model discloses a tooling trolley for inspecting the track and positioning holes of a riser module. It includes a main frame, a shaft support device, roller shafts, rollers, a power mechanism, a transmission mechanism, a cylinder, and pins. The main frame 1 serves as the load-bearing base of the tooling trolley. The shaft support device 5 is fixed to the bottom of the main frame. The roller shaft 3 is rotatably connected to the shaft support device. The rollers 4 are sleeved on both ends of the roller shaft for movement in conjunction with the track of the riser module. The power mechanism is installed on the main frame, and its output end is connected to the roller shaft via the transmission mechanism 8. The cylinder 2 is vertically fixed to the top of the main frame, and its axis corresponds to the axis of the deck positioning hole to be inspected. The pin 9 is pluggably inserted into the cylinder to simulate the engagement of the equipment trolley with the deck positioning hole. In this embodiment, the power mechanism is a pneumatic motor 6. In other optional embodiments, electrical control, hydraulic control, etc., can also be used, as long as power output can be achieved. The output end of the pneumatic motor 6 is connected to the transmission mechanism via a reducer 7.

[0025] Furthermore, as one optional implementation, the transmission mechanism is a chain drive assembly, including a driving sprocket, a driven sprocket, and a chain. The driving sprocket is fixed to the output shaft of the reducer, the driven sprocket is fixed to the roller shaft, and the chain meshes with the driving sprocket and the driven sprocket. The accompanying drawings of this embodiment show a chain drive; however, a synchronous belt drive can also be used.

[0026] Furthermore, as another optional implementation, the transmission mechanism is a gear transmission assembly, including a driving gear and a driven gear that mesh with each other, the driving gear being fixed to the output shaft of the reducer, and the driven gear being fixed to the roller shaft.

[0027] Furthermore, the shaft support device is a bearing housing, and the roller shaft is rotatably connected to the bearing housing via a bearing.

[0028] Furthermore, the inner wall of the cylinder is provided with a guide keyway, and the outer wall of the pin is provided with a guide key that cooperates with the guide keyway.

[0029] During use, when the air source is supplied to the tooling trolley, the pneumatic motor 6 drives the reducer 7 to run. The reducer 7 drives the roller shaft 3, which is fixed on the shaft support device 5 at the bottom of the tooling trolley, to rotate through the transmission mechanism 8. At the same time, the roller 4 also rotates, so that the tooling trolley can move on the track. Thus, the track accuracy can be checked by moving the tooling trolley.

[0030] When the tooling trolley reaches the positioning hole on the deck, stop the tooling trolley and insert pin 9 into the cylinder 2 of the tooling trolley to check the positioning accuracy with the positioning hole on the deck. After confirming the accuracy, weld the sleeve below the positioning hole. Then, repeat the positioning check using the tooling trolley.

[0031] Specifically, upon reaching the positioning hole location, the worker grasps the handle at the top of the pin and slowly inserts it along the guide keyway of the cylinder, observing the alignment of the pin head with the pre-set mark on the deck. If the pin can be smoothly inserted into the pre-set small hole, the positioning hole position is preliminarily determined to be qualified. The worker marks the qualified positioning holes with a marker, and marks the offset direction and value for holes that need correction. Using a drilling tool, the holes are enlarged according to the corrected coordinates. After enlargement, the tooling trolley is used for re-inspection until the accuracy requirements are met. After completing the inspection of the current hatch, the trolley is started and continues to the next hatch location, repeating the above positioning, pin insertion, and verification process until the positioning holes of all hatches have been inspected.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A tooling trolley for inspecting the track and positioning holes of riser modules, characterized in that, The device includes a main frame, a shaft support device, roller shafts, rollers, a power mechanism, a transmission mechanism, a cylinder, and pins. The main frame serves as the load-bearing base for the tooling trolley. The shaft support device is fixed to the bottom of the main frame. The roller shafts are rotatably connected to the shaft support device. The rollers are sleeved on both ends of the roller shafts and are used to cooperate with the track of the riser module to achieve movement. The power mechanism is installed on the main frame, and its output end is connected to the roller shafts through the transmission mechanism. The cylinder is vertically fixed to the top of the main frame, and its axis corresponds to the axis of the deck positioning hole to be inspected. The pins are pluggable and detachable through the cylinder to simulate the cooperation between the equipment trolley and the deck positioning hole.

2. The tooling trolley according to claim 1, characterized in that, The transmission mechanism is a chain drive assembly, including a driving sprocket, a driven sprocket, and a chain. The driving sprocket is fixed to the output shaft of the reducer, the driven sprocket is fixed to the roller shaft, and the chain meshes with the driving sprocket and the driven sprocket.

3. The tooling trolley according to claim 1, characterized in that, The transmission mechanism is a gear transmission assembly, including a driving gear and a driven gear that mesh with each other. The driving gear is fixed to the output shaft of the reducer, and the driven gear is fixed to the roller shaft.

4. The tooling trolley according to claim 1, characterized in that, The shaft support device is a bearing housing, and the roller shaft is rotatably connected to the bearing housing through a bearing.

5. The tooling trolley according to claim 1, characterized in that, The inner wall of the cylinder is provided with a guide keyway, and the outer wall of the pin is provided with a guide key that cooperates with the guide keyway.

6. The tooling trolley according to claim 1, characterized in that, The power mechanism includes a pneumatic motor.

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