Diameter reducing device for flat aluminum sleeve of high-voltage cable

Abstract

The utility model relates to the technical field of hole shrinkage processes, and provides a hole shrinkage device for a high-voltage cable flat aluminum sleeve, which comprises a support frame; the hole shrinkage assembly is provided with a connecting block and a hole shrinkage piece, and the hole shrinkage piece is provided with a pre-compression part and a compression sizing part; one end of the connecting block abuts against the wedge-shaped block; the first driving assembly is in transmission connection with the wedge-shaped block; the second driving assembly is in transmission connection with the supporting frame; the first driving assembly drives the wedge-shaped block to move in the horizontal direction, the inclined face on the wedge-shaped block pushes the connecting block to move, it is ensured that the reducing piece is adjusted to the working position suitable for the size of the current flat aluminum sleeve, special tools do not need to be replaced, the production process is greatly simplified, and the working efficiency is improved; the second driving assembly drives the supporting frame to rotate, and the connecting block and the reducing piece rotate around the axis of the flat aluminum sleeve along with the supporting frame, so that reducing operation is carried out; and the pre-compression part and the compression sizing part on the reducing piece gradually reduce the diameter of the flat aluminum sleeve, so that high pressure applied in a single time is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of reducing process, concretely is a reducing device for high voltage cable flat aluminium sleeve. BACKGROUND

[0002] Reducing is a metal processing technology, mainly used for reducing the outer diameter size of pipe, wire or other similar long strip-shaped metal products. This process usually changes the cross-sectional shape and size of the material through mechanical means without affecting the length of the material. Reducing can be applied to various metal products, such as steel pipes, aluminum pipes, copper pipes, etc. to meet specific application requirements or specification requirements.

[0003] There are two methods for reducing flat aluminum sleeve in the prior art: the first is tight pressure roller compression method, which adopts multiple tight pressure rollers installed on the triangular claw disc, rotates the triangular claw disc to combine the tight pressure rollers into a circle, so that the flat aluminum sleeve passes through the combined tight pressure rollers for rolling forming, and gradually reduces its outer diameter; the second method is circular die drawing method, which uses multiple levels of gradually reduced circular dies to realize the compression forming of flat aluminum sleeve through the drawing process; for these two reducing methods, each different specification of flat aluminum sleeve needs to be matched with a corresponding set of tight pressure rollers (for tight pressure roller compression method) or dies (for circular die drawing method), and the change of these tools needs downtime, and the cost of manufacturing specific specification tools is high, which directly affects the production efficiency and increases the production cost. SUMMARY

[0004] The utility model provides a reducing device for high voltage cable flat aluminium sleeve to solve the technical problem of the prior art.

[0005] The utility model adopts the technical scheme that a reducing device for high voltage cable flat aluminium sleeve is provided, the flat aluminium sleeve moves linearly relative to the reducing device, and the reducing device comprises:

[0006] A support frame;

[0007] A reducing assembly provided on the support frame and having a connecting block and a reducing piece movably provided on the connecting block, the reducing piece having a pre-compression part and a compression sizing part, the pre-compression part and the compression sizing part are located on the moving path of the flat aluminium sleeve and abut against the flat aluminium sleeve in sequence;

[0008] A wedge block provided on the side of the reducing assembly and having one end of the connecting block abutting against the wedge block;

[0009] A first drive assembly in transmission connection with the wedge block for moving the wedge block relative to the connecting block;

[0010] The diameter reduction component can be displaced by the connecting block due to the movement of the wedge block relative to the connecting block, in order to adapt to the diameter reduction operation of the flat aluminum sleeve of different sizes;

[0011] The second drive assembly is connected to the support frame in a transmission manner and is used to drive the support frame to rotate;

[0012] The diameter reduction component can rotate along the axis of the flat aluminum sleeve due to the rotation of the support frame, and is used to perform a diameter reduction operation on the flat aluminum sleeve.

[0013] In the aforementioned diameter reduction device for flat aluminum sheaths of high-voltage cables, the first drive assembly includes:

[0014] A movable seat, wherein the wedge block is connected to the movable seat, and the movable seat is used to drive the wedge block to move;

[0015] A lead screw, which is connected to the movable seat;

[0016] The first driving member has one end of the lead screw connected to the output end of the first driving member, and the first driving member drives the movable seat to move through the lead screw.

[0017] In the aforementioned device for reducing the diameter of a flat aluminum sheath for a high-voltage cable, the wedge block is in the shape of a ring, and the connecting block abuts against one end of the wedge block and can slide along the surface of the wedge block due to the rotation of the support frame driven by the second drive assembly.

[0018] In the aforementioned diameter reduction device for flat aluminum sheaths of high-voltage cables, the second drive assembly includes:

[0019] A drive block, one end of which is connected to the support frame, is used to drive the support frame to rotate;

[0020] The second driving component is connected to the output end of the driving block, and the second driving component is used to drive the driving block to rotate.

[0021] In the aforementioned device for reducing the diameter of a flat aluminum sleeve for a high-voltage cable, the pre-compression section is an inclined section disposed on one side of the reducing member, the inclined section abutting against the flat aluminum sleeve for pre-compressing the flat aluminum sleeve.

[0022] In the aforementioned device for reducing the diameter of a flat aluminum sleeve for a high-voltage cable, the compression and sizing section is a parallel section disposed on one side of the reducing member, and the inclined section is disposed side by side with the parallel section and abuts against the flat aluminum sleeve in sequence. The parallel section is used to compress and sizing the flat aluminum sleeve.

[0023] In the aforementioned device for reducing the diameter of a flat aluminum sleeve for a high-voltage cable, the reducing component is annular in shape and can be rotated around its own axis by abutting against the flat aluminum sleeve.

[0024] In the aforementioned device for reducing the diameter of a flat aluminum sheath for a high-voltage cable, the reducing assembly further includes a rotating shaft rotatably connected to the connecting block, the reducing component being connected to the rotating shaft, and the rotating shaft being used to allow the reducing component to be rotatably connected to the connecting block.

[0025] Compared with the prior art, the advantages of this utility model are as follows: the first drive component drives the wedge block to translate, and the inclined surface of the wedge block pushes the connecting block to move, thereby adjusting the position of the diameter reduction component and ensuring that the diameter reduction component set on the connecting block is adjusted to the most suitable position for performing the diameter reduction task; after the diameter reduction operation begins, the flat aluminum sleeve gradually moves to the position of the diameter reduction component under the action of external power, and the second drive component is activated, driving the support frame to rotate. The rotation of the support frame causes the connecting block and the diameter reduction component on it to rotate around the axis of the flat aluminum sleeve, thereby performing the diameter reduction operation. During this period, the pre-compression part of the diameter reduction component... First, the flat aluminum sleeve contacts the surface to perform the initial diameter reduction step. Then, the flat aluminum sleeve continues to advance and contacts the compression and sizing section, where it is further and precisely compressed to the required final size. This two-step diameter reduction method effectively reduces the force applied during each diameter reduction, avoiding the risk of stress concentration inside the flat aluminum sleeve due to excessive pressure. The device in this solution can adapt to flat aluminum sleeves of various sizes simply by adjusting the position of the diameter reduction component before the diameter reduction operation, without the need to change special tools. This greatly simplifies the production process, improves work efficiency, and reduces equipment maintenance and management costs. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of this solution.

[0027] In the figure, 1 is the support frame; 2 is the connecting block; 3 is the diameter reduction part; 4 is the pre-compression part; 5 is the compression and sizing part; 6 is the wedge block; 7 is the moving seat; 8 is the lead screw; 9 is the first driving component; 10 is the driving block; 11 is the second driving component; and 12 is the rotating shaft. Detailed Implementation

[0028] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0029] like Figure 1As shown, this utility model discloses a diameter reduction device for a flat aluminum sleeve of a high-voltage cable. The flat aluminum sleeve moves linearly relative to the diameter reduction device. The diameter reduction device includes: a support frame 1; a diameter reduction assembly, which is mounted on the support frame 1 and has a connecting block 2 and a diameter reduction component 3 movably mounted on the connecting block 2. The diameter reduction component 3 has a pre-compression part 4 and a compression sizing part 5, both of which are located on the moving path of the flat aluminum sleeve and abut against the flat aluminum sleeve in sequence; and a wedge block 6, which is mounted on the side of the diameter reduction assembly and connected to the connecting block. One end of 2 abuts against the wedge block 6; the first drive assembly is driven to the wedge block 6 and is used to drive the wedge block 6 to move relative to the connecting block 2; the diameter reduction part 3 can be displaced by the connecting block 2 due to the movement of the wedge block 6 relative to the connecting block 2, and is used to adapt to the diameter reduction operation of flat aluminum sleeves of different sizes; the second drive assembly is driven to the support frame 1 and is used to drive the support frame 1 to rotate; the diameter reduction part 3 can rotate along the axis of the flat aluminum sleeve due to the rotation of the support frame 1, and is used to perform the diameter reduction operation on the flat aluminum sleeve.

[0030] Before performing the diameter reduction operation, the first drive assembly is used to drive the wedge block 6 to move horizontally according to the specific dimensions of the flat aluminum sleeve to be processed. When the wedge block 6 moves horizontally, it will push the connecting block 2 to rise or fall vertically, thereby precisely adjusting the height position of the diameter reduction part 3 to ensure that it is in the most suitable position to perform the diameter reduction task. After confirming that the diameter reduction part 3 has been adjusted to the correct position, the first drive assembly stops driving, and the diameter reduction preparation work is completed.

[0031] After preparation, the diameter reduction begins. Under external power, the flat aluminum sleeve moves linearly relative to the diameter reduction device and gradually moves to the position of the diameter reduction component 3. Simultaneously, the second drive assembly starts, driving the support frame 1 to rotate. The rotation of the support frame 1 causes the connecting block 2 and the diameter reduction component 3 on it to rotate around the axis of the flat aluminum sleeve, thus performing the diameter reduction operation. It is worth noting that when the flat aluminum sleeve contacts the diameter reduction component 3, firstly, the pre-compression part 4 of the diameter reduction component 3 contacts the surface of the flat aluminum sleeve, performing the initial diameter reduction step. Subsequently, the flat aluminum sleeve continues to advance and contacts the compression and sizing part 5, where it... The aluminum sleeve will be further compressed to the required final size. This two-step reduction method effectively reduces the force applied during each reduction, avoiding the risk of stress concentration inside the flat aluminum sleeve due to excessive pressure. The device in this solution can adapt to flat aluminum sleeves of various sizes simply by adjusting the position of the reduction component 3 before the reduction operation, without the need to change special tools. This greatly simplifies the production process, improves work efficiency, and reduces equipment maintenance and management costs. In addition, the step-by-step reduction method in this solution reduces the pressure on the flat aluminum sleeve, ensuring product quality and performance.

[0032] Specifically, the first drive assembly includes: a movable seat 7, with a wedge block 6 connected to the movable seat 7; a lead screw 8 connected to the movable seat 7; and a first drive member 9, with one end of the lead screw 8 connected to the output end of the first drive member 9. The first drive member 9 drives the movable seat 7 to move via the lead screw 8. Before the diameter reduction operation begins, the first drive member 9 is activated according to the specific dimensions of the flat aluminum sleeve. The first drive member 9 drives the lead screw 8 to rotate, thereby driving the movable seat 7 and the wedge block 6 connected to the movable seat 7 to move horizontally. As the wedge block 6 moves horizontally, it causes the connecting block 2 to shift, thereby precisely adjusting the position of the diameter reduction part 3 to ensure that it is in the most suitable position to perform the diameter reduction task. The first drive member 9 can be a hydraulic cylinder, a pneumatic cylinder, or a motor.

[0033] The wedge block 6 is designed in the shape of a ring with an inclined surface on its inner side. One end of the connecting block 2 abuts against this inclined surface to ensure stable contact between the two. Before the diameter reduction operation begins, the first drive assembly drives the wedge block 6 to move horizontally. The inclined surface of the wedge block 6 pushes the connecting block 2 to rise or fall vertically until the diameter reduction component 3 set on the connecting block 2 is adjusted to a suitable height for the current flat aluminum sleeve. Then, the first drive assembly stops driving, completing the height adjustment of the diameter reduction component 3, thereby ensuring that the diameter reduction component 3 can adapt to flat aluminum sleeves of different sizes. When the diameter reduction operation begins, the support frame 1 rotates under the drive of the second drive assembly, and the connecting block 2 also rotates around the axis of the flat aluminum sleeve. At this time, the end of the connecting block 2 abutting against the wedge block 6 slides along the inner surface of the wedge block 6, ensuring that the connecting block 2 and the wedge block 6 maintain continuous contact throughout the rotation process.

[0034] Specifically, the second drive assembly includes: a drive block 10, one end of which is connected to the support frame 1; and a second drive component 11, with the drive block 10 connected to the output end of the second drive component 11. When the flat aluminum sleeve moves to the position of the diameter reduction component 3 under external force, the second drive component 11 starts to start, driving the support frame 1 to rotate through the drive block 10. At this time, the connecting block 2 and the diameter reduction component 3 rotate together with the support frame 1 around the axis of the flat aluminum sleeve. The diameter reduction component 3 contacts the outer surface of the flat aluminum sleeve to perform a diameter reduction operation. The second drive component 11 is preferably a rotary motor.

[0035] Specifically, the pre-compression section 4 is an inclined section located on one side of the diameter reduction component 3. The inclined section is carefully designed with a specific angle and shape to ensure that the flat aluminum sleeve is subjected to uniform and gradual pressure when it comes into contact with it, so that the flat aluminum sleeve can be properly pre-compressed before entering the final diameter reduction stage. When the flat aluminum sleeve moves in a straight line under the action of external power and approaches the diameter reduction component 3, it first contacts the inclined section of the pre-compression section 4. As the flat aluminum sleeve moves along the inclined section, it will be subjected to gradually increasing pressure. Due to the special design of the inclined section, this pressure is evenly distributed on the entire contact surface, ensuring that the outer diameter of the flat aluminum sleeve gradually decreases without sudden changes or excessive local deformation. The main task of the pre-compression section 4 is to perform preliminary dimensional adjustment of the flat aluminum sleeve to prepare for the subsequent fine diameter reduction process.

[0036] Specifically, the compression sizing section 5 is a parallel section provided on one side of the reducing member 3. The inclined section and the parallel section are arranged side by side and abut against the flat aluminum sleeve in sequence. When the flat aluminum sleeve moves in a straight line under the action of external power and approaches the reducing member 3, it first contacts the inclined section of the pre-compression section 4. During the process of passing through the inclined section, the flat aluminum sleeve is subjected to a gradual pre-compression treatment. After the pre-compression is completed, the flat aluminum sleeve naturally transitions to contact the parallel section of the compression sizing section 5. At this time, the parallel section of the compression sizing section 5 accurately compresses the flat aluminum sleeve to its final required size.

[0037] To reduce the frictional resistance between the surface of the flat aluminum sleeve and the reduced diameter component 3, the reduced diameter component 3 is designed as a ring shape. When the flat aluminum sleeve advances to the position of the reduced diameter component 3 and contacts it, the reduced diameter component 3, together with the connecting block 2, is driven by the support frame 1 to rotate around the axis of the flat aluminum sleeve. During this period, the reduced diameter component 3 begins to rotate around its own axis due to the friction between it and the flat aluminum sleeve. The rotation of the reduced diameter component 3 transforms the original static friction into dynamic friction, thereby effectively reducing the frictional resistance between the surface of the flat aluminum sleeve and the reduced diameter component 3, promoting the smoothness of the reduced diameter process, and reducing energy loss caused by friction.

[0038] Furthermore, the diameter reduction assembly also includes a rotating shaft 12, which is precisely mounted on the connecting block 2. It can rotate freely while maintaining a stable connection with the connecting block 2. The diameter reduction component 3 is fixed on the rotating shaft 12 through a specific connection method. This connection allows the diameter reduction component 3 and the rotating shaft 12 to rotate simultaneously relative to the connecting block 2. The function of the rotating shaft 12 is to provide a rotation fulcrum for the diameter reduction component 3, so that the diameter reduction component 3 rotates relative to the connecting block 2 when it contacts the flat aluminum sleeve.

[0039] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0040] Furthermore, in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0041] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0043] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the scope defined by the spirit of this utility model.

Claims

1. A diameter reduction device for a flat aluminum sleeve of a high-voltage cable, wherein the flat aluminum sleeve moves linearly relative to the diameter reduction device, characterized in that, The diameter reduction device includes: Support frame; A diameter reduction assembly is provided on the support frame and has a connecting block and a diameter reduction member movably provided on the connecting block. The diameter reduction member has a pre-compression part and a compression sizing part. The pre-compression part and the compression sizing part are both located on the moving path of the flat aluminum sleeve and abut against the flat aluminum sleeve in sequence. A wedge block is disposed on the side of the reduced diameter assembly, and one end of the connecting block abuts against the wedge block; A first drive assembly is connected to the wedge block via a transmission connection and is used to drive the wedge block to move relative to the connecting block; The diameter reduction component can be displaced by the connecting block due to the movement of the wedge block relative to the connecting block, in order to adapt to the diameter reduction operation of the flat aluminum sleeve of different sizes; The second drive assembly is connected to the support frame in a transmission manner and is used to drive the support frame to rotate; The diameter reduction component can rotate along the axis of the flat aluminum sleeve due to the rotation of the support frame, and is used to perform a diameter reduction operation on the flat aluminum sleeve.

2. The diameter reduction device for flat aluminum sheaths of high-voltage cables as described in claim 1, characterized in that, The first driving component includes: A movable seat, wherein the wedge block is connected to the movable seat, and the movable seat is used to drive the wedge block to move; A lead screw, which is connected to the movable seat; The first driving member has one end of the lead screw connected to the output end of the first driving member, and the first driving member drives the movable seat to move through the lead screw.

3. The diameter reduction device for flat aluminum sheaths of high-voltage cables as described in claim 1, characterized in that, The wedge block is in the shape of a ring, and the connecting block abuts against one end of the wedge block and can slide along the surface of the wedge block as the support frame is rotated by the second driving component.

4. The diameter reduction device for flat aluminum sheaths of high-voltage cables as described in claim 1, characterized in that, The second driving component includes: A drive block, one end of which is connected to the support frame, is used to drive the support frame to rotate; The second driving component is connected to the output end of the driving block, and the second driving component is used to drive the driving block to rotate.

5. The diameter reduction device for flat aluminum sheaths of high-voltage cables as described in claim 1, characterized in that, The pre-compression section is an inclined section disposed on one side of the reduced diameter part, and the inclined section abuts against the flat aluminum sleeve to pre-compress the flat aluminum sleeve.

6. The diameter reduction device for flat aluminum sheaths of high-voltage cables as described in claim 5, characterized in that, The compression and sizing section is a parallel section disposed on one side of the reduced diameter part. The inclined section is disposed side by side with the parallel section and abuts against the flat aluminum sleeve in sequence. The parallel section is used to compress and sizing the flat aluminum sleeve.

7. The diameter reduction device for flat aluminum sheaths of high-voltage cables as described in claim 1, characterized in that, The reduced diameter component is annular in shape, and it can be rotated around its own axis by abutting against the flat aluminum sleeve.

8. The diameter reduction device for flat aluminum sheaths of high-voltage cables as described in claim 7, characterized in that, The diameter reduction assembly also includes a rotating shaft rotatably connected to the connecting block, the diameter reduction component is connected to the rotating shaft, and the rotating shaft is used to allow the diameter reduction component to be rotatably connected to the connecting block.

Images