CN201009144Y - Grinding device for polypropylene coated pipe ends - Google Patents

Abstract

The utility model discloses a polypropylene coating pipe end grinding device, which comprises a base plate, a driving motor connected in sequence, a belt transmission mechanism and a grinding head device, the grinding head device is a double grinding head, and the two grinding heads The head is arranged on the carriage, and the carriage is connected with a lifting control cylinder and a slide control cylinder, and each grinding head is connected with the transmission shaft of the belt transmission mechanism respectively. The grinding head is a wire brush, and the two grinding heads are symmetrically arranged side by side, and the distance between the two grinding heads in the axial direction is 408 mm. The drive shafts of the two grinding heads are respectively controlled by a contactor and a time-delay relay to realize alternate operation. The utility model has a simple and reasonable structure, which makes the pipe end grinding have a good effect, and realizes the continuity and stability of the grinding operation. Since the double grinding heads can be polished alternately, each grinding head can be cooled before overheating, avoiding The phenomenon that the grinding steel brush is easily blocked by polypropylene grinding.

Description

Grinding device for polypropylene coated pipe ends

technical field

The utility model relates to a grinding processing equipment, in particular to a grinding device for pipe ends.

Background technique

At present, in marine oil pipelines, with the great development of offshore oil development, the anti-corrosion requirements of seabed steel pipes are also enriched. Among them, in order to meet the requirements of high-temperature oil transportation, the three-layer polyethylene (3PE) anti-corrosion layer can no longer meet this requirement. Our company has used three-layer polypropylene (3PP) as the anti-corrosion layer material after research in technology and has achieved success. However, in the steel pipe anti-corrosion coating operation, the pipeline grinding process encountered problems. The grinding steel brushes of the prior art equipment were easily blocked by polypropylene abrasives, which reduced the grinding efficiency and effect of the steel wire brushes, and even failed to complete the grinding.

Utility model content

The utility model solves the problem in the above-mentioned prior art that when the three-layer polypropylene pipe end is polished, the steel brush is easily blocked by polypropylene grinding, which reduces the grinding efficiency and effect of the steel wire brush, and even fails to complete the grinding at the end. The technical problem is to provide a grinding device for polypropylene coated pipe ends with reasonable structure, simple manufacture, good grinding effect and continuous and stable operation for a long time.

In order to solve the above technical problems, the technical scheme realized by the polypropylene coated pipe end grinding device of the utility model is: it includes a base plate and a driving motor connected in sequence, a belt transmission mechanism and a grinding head device, and the grinding head device is Double grinding heads, the two grinding heads are arranged on the carriage, and the carriage is connected with a lifting control cylinder and a sliding control cylinder, and each grinding head is connected with the transmission shaft of the belt transmission mechanism respectively.

The utility model polypropylene coated pipe end grinding device, wherein the grinding head is a wire brush, the two grinding heads are arranged symmetrically side by side, and the distance between the two grinding heads in the axial direction is 408 mm. The drive shafts of the two grinding heads are respectively controlled by a contactor and a time-delay relay to realize alternate operation.

Compared with the prior art, the beneficial effect of the utility model is: the structure is simple and reasonable, so that the grinding of the pipe end has a good effect, and realizes the continuity and stability of the grinding operation. Since the double grinding heads can be polished alternately, each A grinding head can be cooled before overheating, avoiding the phenomenon that the steel brush is easy to be blocked by polypropylene grinding.

Description of drawings

Fig. 1 is the plan view of the utility model polypropylene coating pipe end grinding device;

Fig. 2 is a side view of the grinding device shown in Fig. 1 .

The following is an explanation of the reference signs of the main parts in the drawings of the specification:

1——Drive motor 2——V-belt 3——Wire brush

4——drive shaft 5——lift control cylinder 6——slide control cylinder

7——base plate 8——grinding head carriage 9——controller

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail.

As shown in Figures 1 and 2, the utility model polypropylene coating pipe end grinding device includes a base plate 7 and two sets of driving motors 1 connected in sequence, a belt transmission mechanism and a grinding head device, and the belt transmission mechanism adopts a V-belt 2. The grinding head device is a double grinding head, the grinding head is a wire brush 3, and the two grinding wire brushes 3 are set on the carriage 8 of the grinding head, and the carriage 8 is connected with a lifting control cylinder 5 and sliding control cylinder 6, each grinding wire brush 3 is connected with the transmission shaft 4 of the belt transmission mechanism, the two grinding wire brushes are arranged symmetrically side by side, and the distance between the two grinding wire brushes 3 in the axial direction is 408mm . The drive shafts 4 of the two grinding wire brushes 3 are respectively controlled by contactors and delay relays to realize alternate operation.

The base plate 7 of the polypropylene coating pipe end grinding device of the utility model is fixed on the grinding mobile trolley, the entire grinding head device is installed on the carriage 8, and the sliding control cylinder 6 drags the carriage 8 to move the grinding head to Specify the grinding position, then start the grinding steel brush lifting control cylinder 5, so that the wire brush 3 contacts the pipe end to be polished; start one of the grinding drive motors 1, and drive the transmission shaft 4 by the V-belt 2, thereby driving the transmission The grinding wire brush 3 on the axis 4 rotates for grinding operation. After the interval setting time is reached, the currently rotating wire brush 3 is stopped, and another grinding head device is started to continue working. By analogy, the two grinding heads rotate alternately. , until the grinding work is completed.

Although the preferred embodiment of the utility model has been described above in conjunction with the accompanying drawings, the utility model is not limited to the above-mentioned specific implementation, and the above-mentioned specific implementation is only illustrative, rather than restrictive, and those skilled in the art Under the enlightenment of the utility model, those of ordinary skill can also make many forms without departing from the purpose of the utility model and the scope protected by the claims, and these all belong to the protection of the utility model.

Claims (3)

1. A polypropylene coating pipe end grinding device, comprising a base plate and a drive motor, a belt transmission mechanism and a grinding head device connected in sequence, is characterized in that: the grinding head device is a double grinding head, and the two The grinding head is arranged on the carriage, and the carriage is connected with a lifting control cylinder and a sliding control cylinder, and each grinding head is connected with the transmission shaft of the belt transmission mechanism respectively. 2. The polypropylene coating pipe end grinding device according to claim 1, characterized in that: the grinding head is a wire brush, the two grinding heads are arranged symmetrically side by side, and the two grinding heads are arranged axially The distance is 408mm. 3. The polypropylene-coated pipe end grinding device according to claim 1, characterized in that: the drive shafts of the two grinding heads are respectively controlled by a contactor and a time-delay relay to realize alternate operation.

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