A three-jaw flange electric centering tool

Abstract

A three-jaw flange electric centering tool includes a drive motor, a grip, and a forward and reverse transmission device. A grip is provided at the tail of the drive motor, a clamping mechanism is installed at the upper end of the drive motor, a torque amplifier is provided at the front end of the drive motor and is connected to a first rotating shaft. The first rotating shaft drives the second rotating shaft to rotate in the opposite direction through a transmission mechanism. A first lever is vertically connected to the side of the first rotating shaft, and a second lever is vertically connected to the side of the second rotating shaft. The present invention adopts a handheld electric flange centering tool, which can completely solve the problem of the final adjustment of flange installation and centering, improve the pipeline installation efficiency, and reduce the operation risk at the same time.

Description

Technical Field

[0001] The present invention relates to the field of pipeline construction tools, and particularly to a three-jaw flange electric centering tool. Background Art

[0002] In the installation of various flange-connected pipelines, after the flanges are aligned, seals need to be installed and bolts need to be locked. The traditional installation method is to use chain hoists to fix the two ends of the pipeline and at the elbow positions, and by adjusting the height of the hoist hanging points, the centering and installation of the pipeline are carried out. After using the hoist to adjust the flange to an appropriate position, finally, a crowbar is used to pry the pipeline through the flange bolt holes to align it.

[0003] Using the above method, in actual use, when the pipeline size increases, there are elbows on the pipeline, the space is limited, the hoist hanging points are inappropriate, etc., it is very difficult to further align the already close flanges only by manpower and crowbars. Sometimes, tools such as jacks and wooden squares need to be used to assist the operation. Especially for the installation of on-site prefabricated pipelines, due to the influence of welding stress and poor dimensional accuracy factors, repeated adjustment and pulling are required to barely complete the flange alignment. In addition, when the pipeline installation involves high-altitude operations, the traditional centering method requires repeated adjustment and cooperation of multiple people, and there are relatively large safety risks during the brute-force construction process. Summary of the Invention

[0004] In view of the technical problems existing in the background art, the present invention provides a three-jaw flange electric centering tool, which adopts a handheld electric flange centering tool, can completely solve the problem of the final adjustment of flange installation centering, and improves the pipeline installation efficiency while reducing the operation risk.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions to achieve:

[0006] A three-jaw flange electric centering tool includes a driving motor, a grip, and a forward and reverse transmission device. A grip is provided at the tail of the driving motor, a clamping mechanism is installed at the upper end of the driving motor, a torque amplifier is provided at the front end of the driving motor and is connected to a first rotating shaft. The first rotating shaft drives the second rotating shaft to rotate in the opposite direction through a transmission mechanism. A first lever is vertically connected to the side of the first rotating shaft, and a second lever is vertically connected to the side of the second rotating shaft.

[0007] In a preferred solution, the transmission mechanism includes a driving gear, a forward and reverse transmission mechanism, and a driven gear; the axis of the driving gear is vertically connected to the first rotating shaft, the driving gear is coaxial with the first rotating shaft and rotates synchronously; the axis of the driven gear is vertically connected to the second rotating shaft, the driven gear is coaxial with the second rotating shaft and rotates synchronously; the forward and reverse transmission mechanism is arranged between the driving gear and the driven gear and is meshed with both.

[0008] In a preferred embodiment, the forward and reverse transmission mechanism includes a right gear, a left gear, a mechanism bracket, a left rotating rod, and a right rotating rod; the mechanism bracket is sleeved on the first rotating shaft, the left rotating rod and the right rotating rod are arranged on the left and right sides of the mechanism bracket and can rotate around their own axes, the left rotating rod is fixedly connected to the axis of the left gear and drives the left gear to rotate synchronously, the right rotating rod is fixedly connected to the axis of the right gear and drives the right gear to rotate synchronously, and the right gear and the left gear are meshed and connected with the driving gear and the driven gear.

[0009] In a preferred embodiment, the second rotating shaft is sleeved on the outside of the first rotating shaft and is coaxial with the first rotating shaft, and the end of the first rotating shaft is clamped in the flange.

[0010] In a preferred embodiment, a detachable battery is installed in the grip.

[0011] In a preferred embodiment, the clamping mechanism includes a groove plate, the groove plate is arranged side by side on the upper end surface of the driving motor, the groove plate is fixedly connected to the driving motor through a connecting plate, a toothed plate is arranged in the groove plate and can slide along the inner chute of the groove plate in a limited manner, and a clamping plate is connected to the end of the toothed plate.

[0012] In a preferred embodiment, a transmission gear is arranged in the middle of the toothed plate, the transmission gear is meshed and connected with the toothed plates on both sides, the axis of the transmission gear is connected to the third rotating shaft, the third rotating shaft penetrates through the driving motor, and a knob is arranged at the lower end of the third rotating shaft.

[0013] In a preferred embodiment, an anti-slip pad is arranged on the inner side of the clamping plate and jointly clamps and fixes the steel pipe.

[0014] The present invention for invention patent can achieve the following beneficial effects:

[0015] 1. By using an electric flange alignment tool to replace the traditional manual crowbar alignment, the installation quality and installation efficiency of the present invention are greatly improved;

[0016] 2. By using an electric alignment tool, the present invention avoids using brute force to pry the steel pipe during alignment, can effectively reduce the operation risk during operation at high altitude or in special environments, and at the same time avoids damaging components such as the steel pipe during the prying alignment process;

[0017] 3. When the device of the present invention is used for alignment operation of non-pipeline flanges with larger sizes, multiple devices can be used in cooperation to achieve the effect of auxiliary positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following further describes the present invention in conjunction with the drawings and embodiments:

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 Schematic diagram of the installation effect of the overall structure of the present invention;

[0021] Figure 3 Schematic diagram of the packaging of the main components of the present invention;

[0022] Figure 4 Schematic diagram of the forward and reverse transmission mechanism of the present invention;

[0023] Figure 5 Schematic diagram of the structure of the clamping mechanism of the present invention;

[0024] Figure 6 Bottom view of the structure of the clamping mechanism of the present invention;

[0025] Figure 7 Top view of the structure of the clamping mechanism of the present invention.

[0026] In the figure: drive motor 1, grip 2, forward and reverse transmission mechanism 3, right gear 301, left gear 302, mechanism bracket 303, left rotating rod 304, right rotating rod 305, first rotating shaft 4, second rotating shaft 5, first lever 6, second lever 7, steel pipe 8, flange 9, battery 10, drive gear 11, driven gear 12, connecting plate 13, groove plate 14, knob 15, clamping plate 16, anti-slip pad 17, third rotating shaft 18, transmission gear 19, toothed plate 20. Detailed implementation manners

[0027] As Figure 1 and Figure 3 shown, a three-jaw flange electric centering tool includes a drive motor 1, a grip 2, and a forward and reverse transmission device. A grip 2 is provided at the tail of the drive motor 1, a clamping mechanism is installed at the upper end of the drive motor 1, a torque amplifier is provided at the front end of the drive motor 1 and is connected to the first rotating shaft 4. The first rotating shaft 4 drives the second rotating shaft 5 to rotate in the opposite direction through a transmission mechanism. A first lever 6 is vertically connected to the side of the first rotating shaft 4, and a second lever 7 is vertically connected to the side of the second rotating shaft 5;

[0028] During operation, the device drives the first lever 6 on the first rotating shaft 4 to rotate through the drive motor 1, and the transmission mechanism drives the second rotating shaft 5 and the second lever 7 to rotate in the opposite direction. The end of the first rotating shaft 4 is clamped in the flange 9 to form a three-jaw structure. The first lever 6 and the second lever 7 rotate towards each other and cooperate synchronously to lift the flange 9, thereby realizing the adjustment of the relative position of the two flanges.

[0029] The preferred solution is as Figure 2 and Figure 4As shown in the figure, the transmission mechanism includes a driving gear 11, a forward and reverse transmission mechanism 3, and a driven gear 12; the axis of the driving gear 11 is perpendicularly connected to the first rotating shaft 4, and the driving gear 11 is coaxial with the first rotating shaft 4 and rotates synchronously; the axis of the driven gear 12 is perpendicularly connected to the second rotating shaft 5, and the driven gear 12 is coaxial with the second rotating shaft 5 and rotates synchronously; the forward and reverse transmission mechanism 3 is arranged between the driving gear 11 and the driven gear 12 and is meshed and connected with both of them;

[0030] When the device works, the driving gear 11 drives the first rotating shaft 4 to rotate coaxially and synchronously. The driving gear 11 drives the driven gear 12 to rotate in the reverse direction through the forward and reverse transmission mechanism 3, and the driven gear 12 drives the second rotating shaft 5 to rotate synchronously, thereby realizing the reverse synchronous rotation of the first rotating shaft 4 and the second rotating shaft 5.

[0031] The preferred solution is as Figure 4 As shown in the figure, the forward and reverse transmission mechanism 3 includes a right gear 301, a left gear 302, a mechanism bracket 303, a left rotating rod 304, and a right rotating rod 305; the mechanism bracket 303 is sleeved on the first rotating shaft 4, and the left rotating rod 304 and the right rotating rod 305 are arranged on the left and right sides of the mechanism bracket 303 and can rotate around their own axes. The left rotating rod 304 is fixedly connected to the axis of the left gear 302 and drives the left gear 302 to rotate synchronously. The right rotating rod 305 is fixedly connected to the axis of the right gear 301 and drives the right gear 301 to rotate synchronously. The right gear 301 and the left gear 302 are meshed and connected with the driving gear 11 and the driven gear 12;

[0032] When the driving gear 11 rotates, it will drive the left rotating rod 304 and the right rotating rod 305 on both sides to rotate synchronously. The rotation of the left rotating rod 304 and the right rotating rod 305 drives the driven gear 12 to rotate in the reverse direction, thereby realizing the use requirements of forward and reverse rotation.

[0033] The preferred solution is as Figures 1 to 3 As shown in the figure, the second rotating shaft 5 is sleeved on the outside of the first rotating shaft 4 and is coaxial with the first rotating shaft 4. The end of the first rotating shaft 4 is clamped in the flange 9. With this structure, the positions of the first rotating shaft 4 and the second rotating shaft 5 are kept fixed when the device works. The first rotating shaft 4 and the second rotating shaft 5 drive the first lever 6 and the second lever 7 to rotate, realizing a three-claw lifting structure. The first rotating shaft 4 serves as a fulcrum during operation, and the first lever 6 and the second lever 7 serve as moving points to cooperate in lifting the flange.

[0034] The preferred solution is as Figure 3As shown in the figure, a detachable battery 10 is installed inside the grip 2. The battery 10 is composed of a power indicator light, a storage battery, a shockproof shell, circuit connection contacts, etc. It can be fixed inside the handle or on the charging base through a bayonet structure, and can be connected by contacts to supply power to the motor or be charged on the charging base. The driving motor 1 is composed of a power supply circuit, overload protection, an active heat dissipation structure, etc. The active heat dissipation can dissipate the heat from the body during the operation of the driving motor 1, and the overload protection can emit a beeping sound to remind the operator after the motor reaches the maximum torque. The power supply circuit can realize the forward and reverse rotation switching of the motor.

[0035] The preferred solution is as Figures 4 to 6 shown. The clamping mechanism includes a grooved plate 14, and the grooved plate 14 is arranged side by side on the upper end face of the driving motor 1. The grooved plate 14 is fixedly connected to the driving motor 1 through a connecting plate 13. A toothed plate 20 is arranged inside the grooved plate 14 and can be slidably limited along the inner chute of the grooved plate 14. The end of the toothed plate 20 is connected with a clamping plate 16; a transmission gear 19 is arranged in the middle of the toothed plate 20, and the transmission gear 19 is meshed with the toothed plates 20 on both sides. The axis of the transmission gear 19 is connected with a third rotating shaft 18, and the third rotating shaft 18 penetrates through the driving motor 1. A knob 15 is arranged at the lower end of the third rotating shaft 18;

[0036] When it is necessary to further clamp the steel pipe 8, first rotate the knob 15 to drive the third rotating shaft 18 to rotate around its own axis. The third rotating shaft 18 drives the transmission gear 19 to rotate synchronously. The transmission gear 19 is meshed with the toothed plates 20 on both sides and drives the toothed plates 20 to slide synchronously along the inner chute of the grooved plate 14. The end of the toothed plate 20 is connected with the clamping plate 16, and then the steel pipe 8 can be further clamped and fixed.

[0037] The preferred solution is as Figure 5 and Figure 6 shown. An anti-slip pad 17 is arranged on the inner side of the clamping plate 16, which can improve the friction between the clamping plate 16 and the steel pipe 8, improve the fastening effect and reduce the damage to the outer wall of the steel pipe 8.

[0038] The above embodiments are only the preferred technical solutions of the present invention and should not be regarded as limitations on the present invention. On the premise of not conflicting with each other, the technical features recorded in the present invention can be combined with each other. The protection scope of the present invention should be the technical solutions recorded in the claims, including the equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, the equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A three-jaw flange electric centering tool, comprising a driving motor (1), a grip (2), and a forward and reverse transmission device, characterized in that: A grip (2) is provided at the tail of the drive motor (1). A clamping mechanism is installed at the upper end of the drive motor (1). A torque amplifier is provided at the front end of the drive motor (1) and is connected to the first rotating shaft (4). The first rotating shaft (4) drives the second rotating shaft (5) to rotate in the reverse direction through a transmission mechanism. A first lever (6) is vertically connected to the side of the first rotating shaft (4), and a second lever (7) is vertically connected to the side of the second rotating shaft (5).

2. The three-jaw flange electric centering tool according to claim 1, characterized in that: The transmission mechanism includes a drive gear (11), a forward and reverse transmission mechanism (3), and a driven gear (12); the axis of the drive gear (11) is vertically connected to the first rotating shaft (4), and the drive gear (11) is coaxial with the first rotating shaft (4) and rotates synchronously; the axis of the driven gear (12) is vertically connected to the second rotating shaft (5), and the driven gear (12) is coaxial with the second rotating shaft (5) and rotates synchronously; the forward and reverse transmission mechanism (3) is arranged between the drive gear (11) and the driven gear (12) and is meshed and connected with both of them.

3. The three-jaw flange electric centering tool according to claim 2, characterized in that: The forward and reverse transmission mechanism (3) includes a right gear (301), a left gear (302), a mechanism bracket (303), a left rotating rod (304), and a right rotating rod (305); the mechanism bracket (303) is sleeved on the first rotating shaft (4), and the left rotating rod (304) and the right rotating rod (305) are arranged on the left and right sides of the mechanism bracket (303) and can rotate around their own axes. The left rotating rod (304) is fixedly connected to the axis of the left gear (302) and drives the left gear (302) to rotate synchronously. The right rotating rod (305) is fixedly connected to the axis of the right gear (301) and drives the right gear (301) to rotate synchronously. The right gear (301) and the left gear (302) are meshed and connected with the drive gear (11) and the driven gear (12).

4. The three-jaw flange electric centering tool according to claim 1, characterized in that: The second rotating shaft (5) is sleeved on the outside of the first rotating shaft (4) and is coaxial with the first rotating shaft (4). The end of the first rotating shaft (4) is clamped in the flange (9).

5. The three-jaw flange electric centering tool according to claim 1, characterized in that: A detachable battery (10) is installed in the grip (2).

6. The three-jaw flange electric centering tool according to claim 1, characterized in that: The clamping mechanism includes a groove plate (14). The groove plates (14) are arranged side by side on the upper end surface of the drive motor (1). The groove plates (14) are fixedly connected to the drive motor (1) through connecting plates (13). A toothed plate (20) is provided in the groove plate (14) and can slide along the inner chute of the groove plate (14) for limiting. The end of the toothed plate (20) is connected to a clamping plate (16).

7. The three-jaw flange electric centering tool according to claim 6, characterized in that: A transmission gear (19) is provided in the middle of the toothed plate (20). The transmission gear (19) is meshed with the toothed plates (20) on both sides. The axis of the transmission gear (19) is connected to a third rotating shaft (18). The third rotating shaft (18) penetrates the drive motor (1), and a knob (15) is provided at the lower end of the third rotating shaft (18).

8. The three-jaw flange electric centering tool according to claim 6, characterized in that: An anti-slip pad (17) is provided on the inner side of the clamping plate (16), and the steel pipe (8) is clamped and fixed together.

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