Pressing device for stiffening ring of pressure steel pipe

Abstract

The utility model discloses a pressure steel pipe stiffening ring pressing device, and relates to the field of pressure steel pipe machining. Comprising an L-shaped vertical frame and a driving motor, a horizontal frame of the L-shaped vertical frame is located on the upper portion and is downwards connected with a vertical plate, the vertical plate is connected with a first vertical roller, and the first vertical roller faces a vertical frame of the L-shaped vertical frame. The driving motor is fixed to a vertical frame of the L-shaped vertical frame and connected with a horizontal roller, and the horizontal roller points to the vertical plate. A vertical frame of the L-shaped vertical frame is connected with a second vertical roller, and the second vertical roller and the horizontal roller are arranged on the same side; a vertical frame of the L-shaped vertical frame is connected with a plurality of horizontal pressing oil cylinders from top to bottom. The driving motor drives the horizontal roller to rotate and drives the whole device to do circular motion along the wall of the pressure steel pipe; when the device arrives at a to-be-pressed position, the driving motor is closed, and the horizontal pressing oil cylinder is started to enable the tail end of the piston rod to gradually abut against the stiffening ring and perform pressing operation. In the process, a worker does not need to hold a pressing tool by hand to press the stiffening ring, and the operation efficiency is high.

Description

Technical Field

[0001] The utility model relates to the field of penstock processing, and particularly relates to a penstock stiffening ring pressing device. Background Art

[0002] In order to resist external pressure and ensure the shape of the penstock in a hydropower station, multiple stiffening rings are generally arranged on the outer wall of the penstock. When installing the stiffening ring, since there is often a gap between the stiffening ring and the penstock wall, generally, an external force is applied to press the stiffening ring, so that the gap between the stiffening ring and the penstock wall is minimized, and then the stiffening ring is welded and fixed to the penstock wall.

[0003] The prior art often uses manual hand-held pressing tools, such as pressing oil cylinders, etc. to press the stiffening ring; this process requires the operator to always hold the pressing tool to perform the pressing operation, which is time-consuming and laborious, and the operation efficiency is low.

[0004] Therefore, it is very important to propose a penstock stiffening ring pressing device that can improve the operation efficiency. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a penstock stiffening ring pressing device to solve the problem of low efficiency in pressing the stiffening ring in the prior art.

[0006] To solve the above technical problems, the technical solutions adopted by the utility model are as follows:

[0007] A penstock stiffening ring pressing device, the penstock has its opening facing upward and its lower end stands on the ground through multiple piers, and includes an L-shaped upright frame and a driving motor; the horizontal frame of the L-shaped upright frame is located above and the horizontal frame is connected with a vertical plate downward, the vertical plate is connected with a first vertical roller and the first vertical roller faces the vertical frame of the L-shaped upright frame; the driving motor is fixed on the vertical frame of the L-shaped upright frame, the driving motor is connected with a horizontal roller and the horizontal roller points to the vertical plate;

[0008] The vertical frame of the L-shaped upright frame is connected with a second vertical roller, and the second vertical roller is on the same side as the horizontal roller; the vertical frame of the L-shaped upright frame is connected with multiple horizontal pressing oil cylinders from top to bottom;

[0009] The horizontal roller abuts against the top end of the penstock wall, the first vertical roller abuts against the inside of the penstock, the second vertical roller abuts against the outside of the penstock, and the ends of the piston rods of the multiple horizontal pressing oil cylinders respectively point to the stiffening ring.

[0010] Further, the vertical frame of the L-shaped upright frame is connected with a lifting oil cylinder; the output end of the lifting oil cylinder is located below it and the output end is connected with a horizontal rod, and one end of the horizontal rod far away from the lifting oil cylinder is connected with a third vertical roller upward; the third vertical roller abuts against the inside of the penstock.

[0011] Further, the output end of the lifting oil cylinder is connected to the horizontal rod through a vertical connecting rod.

[0012] Further, the horizontal rod is a telescopic rod.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] Start the driving motor, the driving motor drives the horizontal roller to rotate, and the rotation of the horizontal roller drives the entire device to make a circular motion along the wall of the penstock; when the device reaches the place to be compacted, turn off the driving motor to stop the device, and then activate the horizontal compaction oil cylinder so that the end of its piston rod gradually presses against the stiffening ring and performs the compaction operation. This process does not require manual holding of the compaction tool to compact the stiffening ring, saving manpower and having high operation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the use state of the present utility model.

[0016] Figure 2 It is a right view of the present utility model.

[0017] The interpretations of the reference numerals in the figure are as follows: 1, L-shaped vertical frame; 2, vertical plate; 3, penstock; 4, pier; 5, driving motor; 6, first vertical roller; 7, horizontal roller; 8, second vertical roller; 9, horizontal compaction oil cylinder; 10, stiffening ring; 11, lifting oil cylinder; 12, horizontal rod; 13, third vertical roller; 14, vertical connecting rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The technical solutions of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings of the specification and the specific embodiments. The described embodiments are one of the embodiments of the present utility model, and the present utility model may also have other embodiments.

[0019] Embodiment:

[0020] Refer to Figures 1 - 2 , a penstock stiffening ring compaction device of the present utility model, the penstock 3 has an open end upward and its lower end stands on the ground through a plurality of piers 4, including an L-shaped vertical frame 1, a driving motor 5; the horizontal frame of the L-shaped vertical frame 1 is located above and the horizontal frame is connected downward with a vertical plate 2, the vertical plate 2 is connected with a first vertical roller 6 and the first vertical roller 6 faces the vertical frame of the L-shaped vertical frame 1; the driving motor 5 is fixed on the vertical frame of the L-shaped vertical frame 1, the driving motor 5 is connected with a horizontal roller 7 and the horizontal roller 7 points to the vertical plate 2;

[0021] The vertical frame of the L-shaped vertical frame 1 is connected with a second vertical roller 8, and the second vertical roller 8 is on the same side as the horizontal roller 7; the vertical frame of the L-shaped vertical frame 1 is connected with a plurality of horizontal compaction oil cylinders 9 from top to bottom;

[0022] The horizontal roller 7 abuts against the top of the wall of the pressure steel pipe 3, the first vertical roller 6 abuts against the inner side of the pressure steel pipe 3, the second vertical roller 8 abuts against the outer side of the pressure steel pipe 3, and the piston rod ends of multiple horizontal clamping cylinders 9 point to the stiffening ring 10 one by one.

[0023] In this embodiment, the drive motor 5 is started, and the drive motor 5 drives the horizontal roller 7 to rotate, and the rotation of the horizontal roller 7 drives the entire device to make a circular motion along the wall of the pressure steel pipe 3; when the device reaches the position to be pressed, the drive motor 5 is turned off to stop the device, and then the horizontal pressing oil cylinder 9 is activated so that the end of its piston rod gradually presses against the stiffening ring 10 and performs a pressing operation. This process does not require manual hand-held pressing tools to press the stiffening ring 10, saving manpower and high operating efficiency.

[0024] As a preferred embodiment, the vertical frame of the L-shaped frame 1 is connected to a lifting cylinder 11; the output end of the lifting cylinder 11 is located below it and is connected to a horizontal rod 12, and the end of the horizontal rod 12 away from the lifting cylinder 11 is upwardly connected to a third vertical roller 13; the third vertical roller 13 abuts against the inner side of the pressure steel pipe 3.

[0025] In this embodiment, during the circular motion of the device along the wall of the pressure steel pipe 3, the first vertical roller 6 abuts against the inner side of the pressure steel pipe 3 and is located near the top end of the pressure steel pipe 3, the third vertical roller 13 abuts against the inner side of the pressure steel pipe 3 and is located near the lower end of the pressure steel pipe 3, and the second vertical roller 8 abuts against the outer side of the pressure steel pipe 3; these three rollers can enable the pressure steel pipe 3 to maintain balanced force from top to bottom during the circular motion of the device and the clamping operation of the horizontal clamping cylinder 9, so that the pressure steel pipe 3 is more stable and not easy to overturn.

[0026] When the device rotates along the wall of the pressure steel pipe 3 to the pier 4, the lifting cylinder 11 is operated to drive the horizontal rod 12 to move downward, thereby driving the third vertical roller 13 to move downward until the third vertical roller 13 can completely separate from the wall of the pressure steel pipe 3 in height, and then the device is moved to avoid the pier 4 and then placed on the wall of the pressure steel pipe 3 to continue rotating.

[0027] As a preferred embodiment, the output end of the lifting cylinder 11 is connected to the horizontal rod 12 via a vertical connecting rod 14 .

[0028] In this embodiment, the existence of the vertical connecting rod 14 expands the lifting range of the lifting cylinder 11 on the horizontal rod 12, so that the third vertical roller 13 can adapt to pressure steel pipes 3 of different heights.

[0029] As a preferred embodiment, the horizontal rod 12 is a telescopic rod.

[0030] In this embodiment, the horizontal rod 12 is a telescopic rod. The form of the telescopic rod can be an electric telescopic rod or other forms of telescopic rods in the prior art. When the device rotates along the wall of the penstock 3 to the abutment 4, the lifting oil cylinder 11 is operated to drive the horizontal rod 12 to move downward, thereby driving the third vertical roller 13 to move downward until the third vertical roller 13 can completely disengage from the wall of the penstock 3 in height. Then, the horizontal rod 12 is telescopically operated to avoid the abutment 4, and after the device is rotated continuously, the third vertical roller 13 is restored to the predetermined position to continue the operation. In this way, there is no need to manually move the device to avoid the abutment 4, saving physical strength.

[0031] The terms "connection", "fixation", and "butt joint" that appear in the description of the present utility model can be fixed connection, machining, welding, or mechanical connection. The specific meanings of the above terms in the present utility model should be understood according to the specific circumstances.

[0032] In the description of the present utility model, the terms "inner", "upper", "lower", "end", "side", "outer", etc. indicate the orientation or positional relationship only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit them. Although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A stiffening ring pressing device for a penstock. The penstock (3) has its opening facing upward and its lower end stands on the ground through a plurality of piers (4). It is characterized in that: It includes an L-shaped vertical frame (1) and a driving motor (5); the horizontal frame of the L-shaped vertical frame (1) is located above and the horizontal frame is connected downward with a vertical plate (2), the vertical plate (2) is connected with a first vertical roller (6) and the first vertical roller (6) faces the vertical frame of the L-shaped vertical frame (1); the driving motor (5) is fixed on the vertical frame of the L-shaped vertical frame (1), the driving motor (5) is connected with a horizontal roller (7) and the horizontal roller (7) points to the vertical plate (2); The vertical frame of the L-shaped vertical frame (1) is connected with a second vertical roller (8), and the second vertical roller (8) is on the same side as the horizontal roller (7); the vertical frame of the L-shaped vertical frame (1) is connected with a plurality of horizontal pressing oil cylinders (9) from top to bottom; The horizontal roller (7) abuts against the top end of the wall of the pressure steel pipe (3), the first vertical roller (6) abuts against the inner side of the pressure steel pipe (3), the second vertical roller (8) abuts against the outer side of the pressure steel pipe (3), and the ends of the piston rods of the plurality of horizontal pressing oil cylinders (9) respectively point to the stiffening ring (10).

2. The compacting device for the stiffening ring of the penstock according to claim 1, wherein: The vertical frame of the L-shaped vertical frame (1) is connected with a lifting oil cylinder (11); the output end of the lifting oil cylinder (11) is located below it and the output end is connected with a horizontal rod (12), and the end of the horizontal rod (12) far away from the lifting oil cylinder (11) is connected upward with a third vertical roller (13); the third vertical roller (13) abuts against the inner side of the pressure steel pipe (3).

3. A stiffening ring pressing device for a penstock according to claim 2, characterized in that: The output end of the lifting oil cylinder (11) is connected with the horizontal rod (12) through a vertical connecting rod (14).

4. A stiffening ring pressing device for a penstock according to claim 2, characterized in that: The horizontal rod (12) is a telescopic rod.

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