CN112571299A

CN112571299A - Sand blasting device

Info

Publication number: CN112571299A
Application number: CN202011451932.XA
Authority: CN
Inventors: 罗艺; 托比亚斯·费希纳; 周明瑜; 王海田; 郑新龙
Original assignee: State Grid Corp of China SGCC; State Grid Zhejiang Electric Power Co Ltd; Global Energy Interconnection Research Institute; Global Energy Interconnection Research Institute Europe GmbH
Current assignee: State Grid Corp of China SGCC; State Grid Zhejiang Electric Power Co Ltd; Global Energy Interconnection Research Institute; Global Energy Interconnection Research Institute Europe GmbH
Priority date: 2020-12-09
Filing date: 2020-12-09
Publication date: 2021-03-30
Anticipated expiration: 2040-12-09
Also published as: CN112571299B

Abstract

The invention relates to the technical field of power cable accessory mounting tools, in particular to a sand blasting device, which comprises: a housing body provided with an accommodating cavity; the connecting channel is arranged on the shell body and is suitable for the part to be removed to be inserted into the accommodating cavity through the connecting channel; the sandblast passageway is located on the shell body. The sand blasting device shortens the installation period of the high-voltage cable accessories, has high automation degree and low labor intensity, improves the working efficiency, controls the sand blasting splashing range in a limited space, and cannot cause pollution and personal injury.

Description

Sand blasting device

Technical Field

The invention relates to the technical field of power cable accessory mounting tools, in particular to a sand blasting device.

Background

Cables are generally rope-like cables made by stranding several or groups of conductors (at least two in each group), each group being insulated from each other and often twisted around a center, the entire outer surface being coated with a highly insulating coating. Meanwhile, in order to reduce the power transmission loss caused by the skin effect in the conductor under the alternating voltage, an insulating layer is coated on the outer surface of a single thin wire of the alternating current cable.

In the process of installing the cable accessory, in order to effectively connect all the thin wires, all the thin wires at the end position of the cable need to be polished, namely, the insulating layers on the outer surfaces of the thin wires are removed, but the process of removing the insulating layers on the outer surfaces of the thin wires needs to consume a large amount of labor and time, so that the labor intensity is high, meanwhile, the installation time of the cable accessory is also increased, and meanwhile, the working efficiency is reduced.

Disclosure of Invention

Therefore, the technical problem to be solved by the invention is to overcome the defects of high labor intensity and low working efficiency of removing the insulating layer on the outer surface of the thin wire in the prior art, thereby providing the sand blasting device with high automation degree, low labor intensity and high working efficiency.

In order to solve the above technical problem, the present invention provides a blasting apparatus comprising: a housing body provided with an accommodating cavity; the connecting channel is arranged on the shell body and is suitable for the part to be removed to be inserted into the accommodating cavity through the connecting channel; the sandblast passageway is located on the shell body.

Optionally, the housing body includes: the first shell and the second shell are connected into a whole through a connecting structure.

Optionally, the connection structure includes: the connecting part is arranged on the side walls of the first shell and the second shell in a protruding mode, and a plurality of connecting holes are formed in the connecting part at intervals; and the fastening piece penetrates through the connecting hole and is suitable for fastening the connecting part so as to connect the first shell and the second shell.

Optionally, the connecting channel is disposed at the bottom of the second housing, and a fixing structure for fixing the to-be-removed member is disposed at the connecting channel.

Optionally, a rotating part is arranged between the fixing structure and the second housing, and the arrangement position of the rotating part corresponds to the position of the connecting channel.

Optionally, the display device further comprises a plurality of observation windows arranged on the first shell and the second shell.

Optionally, the projection of the observation window on the first casing or the second casing is uniformly arranged.

Optionally, a transparent cover body is arranged on the observation window.

Optionally, a sand discharge port is further disposed on the second housing.

Optionally, a lifting device is arranged on the first shell or the second shell, and the lifting device is suitable for lifting the first shell or the second shell.

The technical scheme of the invention has the following advantages:

1. the invention provides a blasting apparatus comprising: a housing body provided with an accommodating cavity; the connecting channel is arranged on the shell body and is suitable for the part to be removed to be inserted into the accommodating cavity through the connecting channel; the sandblast passageway is located on the shell body.

Through a connecting channel arranged on the shell body, the part to be removed can be inserted into the accommodating cavity through the connecting channel, so that sand blasting is performed; meanwhile, a sand blasting channel is arranged on the shell body and is connected with a sand blasting mechanism; firstly, a sand blasting channel for connecting a sand blasting mechanism with a shell body is firstly used for carrying out sand blasting treatment on a piece to be removed from the upper part, so that an insulating layer on the outer surface of the piece to be removed is removed; and finishing the removal treatment of the insulating layer of the part to be removed until the insulating layer at the end part of the part to be removed is taken out. This sand blasting unit has shortened the installation cycle of high tension cable annex, improves work efficiency, and the range control that spatters the sandblast can not cause pollution and bodily injury in a limited space simultaneously.

2. The invention provides a sand blasting device, wherein the connecting structure comprises a connecting part and a fastening part; the connecting part is arranged to protrude out of the side walls of the first shell and the second shell, and a plurality of connecting holes are arranged on the connecting part at intervals; the fastening piece penetrates through the connecting hole and is used for fastening the two connecting parts so as to connect the first shell and the second shell, and the tightness degree of the connection between the first shell and the second shell can be adjusted by adjusting the acting force applied to the connection, so that the first shell and the second shell are ensured to be in a sealing device, and the leakage of sand is prevented.

3. The sand blasting device provided by the invention further comprises a plurality of observation windows arranged on the shell body; when the sand blasting device is used for sand blasting, the sand blasting condition in the shell body, namely the removal condition of the insulating layer on the outer surface of the part to be removed can be observed through the observation window, so that whether the sand blasting is continuously carried out or not is determined.

4. According to the sand blasting device provided by the invention, the shell body is also provided with a sand discharge port; in order to avoid the inside sand of shell body to save more, can, make to wait to get rid of the piece and carry out the sand blasting when the sandblast mechanism passes through the sandblast mouth to shell body is inside, the sand can be discharged from the row's sand mouth of shell body bottom, and utilize the dust catcher to retrieve, then it is internal to advance into the shell body through sandblast mechanism once more, thereby realize the circulation of sand, treat once more and get rid of the piece and carry out the sand blasting, wait to get rid of the insulating layer of a surface until getting rid of completely.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural diagram of a sand blasting apparatus provided by the present invention;

fig. 2 is a side view of fig. 1.

1-a shell body; 11-a first housing; 12-a second housing; 2-a sand blasting channel; 21-a first sand blasting port; 22-a second blast port; 3-a linking structure; 31-a connecting portion; 32-connecting hole; 4-a fixed structure; 5-a rotating member; 6-observation window; 7-cover plate; 8-a sand discharge port; 9-hoisting device.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 and 2, an embodiment of the invention provides a sand blasting apparatus, including: the shell body 1 is provided with an accommodating cavity; the connecting channel is arranged on the shell body 1 and is suitable for a part to be removed to be inserted into the accommodating cavity through the connecting channel; and a sand blasting channel 2 arranged on the shell body 1, wherein a sand blasting mechanism (not shown in the figure) performs sand blasting on the piece to be removed through the sand blasting channel 2.

Through the connecting channel arranged on the shell body 1, the part to be removed can be inserted into the accommodating cavity through the connecting channel, so that the sand blasting treatment is carried out; in this embodiment, the member to be removed is a cable, and the cable is stripped of the insulating shield layer and the insulating layer, the conductor shield layer, and the like of a specified length at the end until the conductor is exposed. Meanwhile, a sand blasting channel 2 is arranged on the shell body 1, and the sand blasting channel 2 is connected with a sand blasting mechanism; firstly, a sand blasting channel 2 which connects a sand blasting mechanism with a shell body 1 is firstly subjected to sand blasting treatment from the upper part of a piece to be removed, so that an insulating layer on the outer surface of the piece to be removed is removed; and finishing the removal treatment of the insulating layer of the part to be removed until the insulating layer at the end part of the part to be removed is taken out. This sand blasting unit has shortened the installation cycle of high tension cable annex, improves work efficiency, and the range control that spatters the sandblast can not cause pollution and bodily injury in a limited space simultaneously.

Further, the case body 1 includes: a first housing 11 and a second housing 12, the first housing 11 and the second housing 12 being connected to one piece by a connecting structure 3. The first housing 11 is disposed above the second housing 12, the first housing 11 and the second housing 12 are connected by the connecting structure 3, and the first housing 11 and the second housing 12 are fastened together, so that the first housing 11 and the second housing 12 form an accommodating chamber. In the present embodiment, the first housing 11 and the second housing 12 are both of a hemispherical structure, and constitute a spherical structure, and the hemispherical structure facilitates the rotation of the blasting apparatus. Meanwhile, the volume of the accommodating cavity is ensured, so that the part to be removed can be completely unfolded in the accommodating cavity, and the insulating layer on the outer surface of the part to be removed can be completely removed when sand blasting is carried out. Wherein, the first shell 11 and the second shell 12 are made of stainless steel plate materials by stamping.

As an alternative embodiment, the first housing 11 and the second housing 12 may also be frame structures.

In the present embodiment, the blasting channel 2 includes two blasting ports, i.e., a first blasting port 21 and a second blasting port 22, the first blasting port 21 is provided on the first housing 11, the second blasting port 22 is provided on the second housing 12, and a cover plate 7 is provided on the blasting ports, and when not in use, the blasting ports are covered by the cover plate 7, thereby preventing sand from leaking. Wherein the cover plate 7 is made of plastic or stainless steel material.

With continued reference to fig. 1 and 2, the connecting structure 3 includes a connecting portion 31 and a fastening member (not shown); the connecting portion 31 protrudes from the side walls of the first housing 11 and the second housing 12, and a plurality of connecting holes 32 are arranged on the connecting portion 31 at intervals; a fastening member is inserted through the connection hole 32 for fastening the two connection portions 31 to connect the first housing 11 and the second housing 12, and the tightness of the connection of the first housing 11 and the second housing 12 can be adjusted by adjusting the force applied to the connection, thereby ensuring that the first housing 11 and the second housing 12 are in a sealing arrangement to prevent the leakage of sand.

With reference to fig. 1 and fig. 2, the connecting channel is disposed at the bottom of the second housing 12, and a fixing structure 4 for fixing the to-be-removed member is disposed at the connecting channel, the fixing structure 4 can be fixed according to sizes of the to-be-removed members with different sizes, and specifically, the fixing structure 4 is a hoop. In particular, a rotating part 5 is arranged between the fixed structure 4 and the second housing 12, wherein the rotating part 5 may be a bearing; thereby be convenient for this fixed knot construct 4's rotation for this fixed knot construct 4 can be rotatory along with treating the rotation of getting rid of the piece, has reduced 2 quantity of sandblast passageways and sandblast mechanism's installation and has demolishd the number of times, has avoided sandblast mechanism's sandblast head to dismantle the installation many times at whole sandblast in-process. The arrangement position of the rotating part 5 corresponds to the position of the connecting channel, so that the connection tightness of the part to be removed in work is ensured, and the sand is prevented from flowing out of the fixed connection part.

Furthermore, the shell also comprises a plurality of observation windows 6 arranged on the shell body 1; that is, the observation window 6 is provided on the first casing 11, may be provided on the second casing 12, and of course, may be provided on the first casing 11 and the second casing 12, and the projection of the observation window 6 on the first casing 11 or the second casing 12 is uniformly arranged. When the sandblasting apparatus performs sandblasting, the sandblasting condition inside the case body 1, that is, the removal condition of the insulating layer of the outer surface of the member to be removed can be observed through the observation window 6, thereby determining whether or not to continue the sandblasting. Specifically, this observation window 6 is the observation hole, and the shape and the opening size of observation hole can set up by oneself according to actual conditions, as long as can reach the circumstances of getting rid of the inside insulating layer of treating the piece surface of getting rid of shell body 1.

Meanwhile, a transparent cover body can be arranged on the observation window 6, and the transparent cover body is made of transparent and wear-resistant glass; the glass can be a convex lens, and the convex lens has a convergence effect, so that the sand blasting condition in the shell body 1 can be more conveniently observed; specifically, the transparent cover and the observation window 6 are rigidly connected, and the transparent cover can be directly clamped at the observation hole, so that the transparent cover cannot fall off when the shell body 1 works. Of course, glue can be used for sticking between the transparent cover body and the observation hole, and the connection reliability of the transparent cover body and the observation hole can still be ensured.

As an alternative, the transparent cover may also be made of plastic, so as to facilitate the viewing of the blasting inside the housing body 1, since the cost of plastic is lower, and the cost of manufacturing the blasting apparatus is also reduced.

In order to avoid that much sand is accumulated inside the shell body 1, a sand discharge port 8 may be further provided on the shell body 1, specifically, the sand discharge port 8 is provided on the second shell 12; so that when sand blasting mechanism carries out sand blasting treatment through the sand blasting opening to the part to be removed in the shell body 1, the sand can be discharged from the sand discharging opening 8 at the bottom of the second shell body 12, and the dust collector is utilized for recycling, and then the sand enters the shell body 1 through the sand blasting mechanism again, so that the circulation of the sand is realized, and the part to be removed is subjected to sand blasting treatment again until the insulating layer on the outer surface of the part to be removed is completely removed.

The shell body 1 is also provided with a lifting device 9, and the lifting device 9 is suitable for lifting the shell body 1; in particular, the lifting device 9 is a lifting ring. Namely, the first shell 11 is lifted, so that the shell body 1 is in a suspended state, and the auxiliary installation is conveniently carried out on a construction site by adopting a travelling crane or a crane. Wherein, the hoisting device 9 is made of stainless steel material.

When the sand blasting device is used, firstly, after the cable is preliminarily installed in place, the insulating shielding layer and the insulating layer with specified lengths at the end parts, the conductor shielding layer and the like are stripped until the conductor is exposed. The second housing 12 is mounted at the end of a cable, the cable is fixed at a fixing mechanism at the bottom of the device, and a gap between the fixing mechanism and the cable is sealed by a rubber pad; then spreading all the wires which are twisted together to separate all the wires from each other as much as possible; hoisting the first shell 11 in place, and connecting the first shell 11 and the second shell 12 into an integral piece through the connecting structure 3; the cover 7 of one of the blasting ports is removed and the blasting nozzle of the blasting mechanism is fixed in the blasting port, and then the vacuum cleaner is connected to the sand discharge port 8. At this time, the blasting mechanism and the vacuum cleaner can be started to observe the removal of the conductor in the housing body 1 through the observation port. After the sand blasting process in one direction is finished, the sand blasting mechanism is closed, the sand blasting mechanism is installed to the sand blasting port in the other direction, the sand blasting mechanism and the dust collector are started again, and the removal condition of the conductor in the shell body 1 is observed through the observation port. And after the completion of the operation, closing the sand blasting mechanism and the dust collector, dismantling all the components, cleaning residual pollutants on the surface, and then carrying out the subsequent process of installing the cable accessories.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are intended to be within the scope of the invention.

Claims

1. A blasting apparatus, comprising:

a shell body (1) provided with an accommodating cavity;

the connecting channel is arranged on the shell body (1) and is suitable for a part to be removed to be inserted into the accommodating cavity through the connecting channel;

the sand blasting channel (2) is arranged on the shell body (1).

2. Blasting apparatus as claimed in claim 1, characterized in that said shell body (1) comprises:

a first shell (11) and a second shell (12), wherein the first shell (11) and the second shell (12) are connected into a whole through a connecting structure (3).

3. Blasting apparatus according to claim 2, characterized in that the connection structure (3) comprises:

a connecting part (31) protruding from the side walls of the first housing (11) and the second housing (12), and a plurality of connecting holes (32) are arranged on the connecting part (31) at intervals;

a fastening member passing through the connection hole (32) and adapted to fasten the connection portion (31) to connect the first case (11) and the second case (12).

4. Blasting apparatus according to any one of claims 1-3, characterised in that the connection channel is provided at the bottom of the second housing (12) and that a fixing structure (4) for fixing the item to be removed is provided at the connection channel.

5. Blasting apparatus according to claim 4, characterised in that a rotary member (5) is arranged between the fixed structure (4) and the second housing (12), the rotary member (5) being arranged in a position corresponding to the position of the connection channel.

6. Blasting apparatus according to any one of claims 2-5, further comprising a plurality of viewing windows (6) provided in the first housing (11) and the second housing (12).

7. Blasting apparatus according to claim 6, characterised in that the projection of the viewing window (6) on the first shell (11) or on the second shell (12) is arranged uniformly.

8. Blasting apparatus according to claim 6, characterised in that the viewing window (6) is provided with a transparent cover.

9. Blasting apparatus according to claim 6, characterised in that a sand discharge opening (8) is also provided in the second housing (12).

10. Blasting apparatus according to any one of claims 7-9, wherein lifting means (9) are provided on the first shell (11) or the second shell (12), said lifting means (9) being adapted to lift the first shell (11) or the second shell (12).