Servomotor rod head dismounting and mounting tool

Abstract

The utility model provides a servomotor rod head disassembling and assembling tool which comprises a guide rail and a circular component. A moving trolley is arranged at the top of the guide rail, and a lifting device is mounted at the top of the moving trolley and comprises a first lifting unit and a second lifting unit; the circular component is arranged on the outer side of an annular part on the servomotor rod head in a sleeving manner, and is detachably connected with the servomotor rod head to form an integral structure; a pair of first rolling bodies is rotationally mounted at the top of the first lifting unit, and the first rolling bodies are used for supporting a flange located at the end of the threaded end of the servomotor rod head; and a pair of second rolling bodies is rotationally mounted at the top of the second lifting unit and is used for supporting the cylindrical surface of the outer side of the circular component. The servomotor rod head is rotationally mounted or dismounted under the support of the first rolling body and the second rolling body, so that the situation that the servomotor rod head is stuck due to the inclination of a thread axis under the action of self gravity or external force is effectively avoided, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of relay repair, in particular to a relay rod head disassembly and assembly tool. Background Art

[0002] The servomotor of a hydroelectric power station's turbine generator set is a rod head structure, and the rod head is threadedly connected to the servomotor push-pull rod. The rod head weighs about 1.9 tons and has an irregular shape. The rod head needs to be disassembled and assembled during the servomotor maintenance. The disassembly and assembly process involves great safety and quality risks. Therefore, a servomotor rod head disassembly and assembly tool is designed to disassemble and assemble the servomotor rod head to ensure the smooth implementation of the servomotor maintenance operation. Utility Model Content

[0003] The purpose of the utility model is to provide a relay rod head disassembly and assembly tool, the relay rod head rotation installation or disassembly process is completed under the support of the first rolling body and the second rolling body, thereby effectively avoiding the occurrence of the relay rod head's own gravity or external force, the thread axis tilt caused by the occurrence of stuck, and improve the work efficiency. In order to achieve the above technical features, the purpose of the utility model is achieved as follows:

[0004] A relay rod head disassembly and assembly tool, comprising a guide rail and a circular component;

[0005] A moving trolley is provided on the top of the guide rail, and a lifting device is installed on the top of the moving trolley, and the lifting device includes a first lifting unit and a second lifting unit;

[0006] The circular component is sleeved on the outer side of the annular portion of the relay rod head and is detachably connected to the relay rod head to form an integral structure;

[0007] A pair of first rolling bodies are rotatably mounted on the top of the first lifting unit, and the first rolling bodies are used to support the flange located at the end of the threaded end of the relay rod head;

[0008] A pair of second rolling bodies are rotatably mounted on the top of the second lifting unit, and the second rolling bodies are used to support the outer cylindrical surface of the circular component.

[0009] A horizontal movement compensation mechanism is provided between the lifting device and the moving trolley, and the horizontal movement compensation mechanism includes an adjustment plate installed at the bottom of the lifting device, a universal ball is installed below the adjustment plate through a bracket, and a relative displacement distance in the front-to-back direction and a relative displacement distance in the left-to-right direction are provided between the adjustment plate and the bracket.

[0010] A plurality of vertically distributed elastic components are arranged between the adjustment plate and the moving trolley.

[0011] The elastic component is a spring.

[0012] The first lifting unit and the second lifting unit are hydraulic cylinders.

[0013] The first lifting unit includes two first adjusting screws distributed along the vertical direction, the first end of the first adjusting screw is connected to the first mounting plate, the first rolling body is installed on the top of the first mounting plate, and the second end of the first adjusting screw is threadedly connected to the first base installed on the top of the moving vehicle.

[0014] The second lifting unit includes two second adjusting screws distributed along the vertical direction, the first end of the second adjusting screw is connected to the second mounting plate, the second rolling body is installed on the top of the second mounting plate, and the second end of the second adjusting screw is threadedly connected to the second base installed on the top of the moving vehicle.

[0015] Stress sheets are installed between the first base, the second base and the adjustment plate respectively.

[0016] The utility model has the following beneficial effects:

[0017] 1. The rotating installation or disassembly process of the relay rod head is completed under the support of the first rolling body and the second rolling body, thereby effectively avoiding the occurrence of the relay rod head being stuck due to the inclination of the thread axis under its own gravity or external force, and improving the working efficiency.

[0018] 2. Through the setting of the horizontal movement compensation mechanism and the elastic component, the entire tooling is non-rigidly connected in the vertical direction. Under the action of the horizontal movement compensation mechanism, the tooling has a certain amount of activity margin in the horizontal and vertical directions, so that the concentricity of the horizontal and circular components of the relay reduces the influence of the disassembly of the relay rod head, and the work efficiency and safety are greatly improved.

[0019] 3. By setting stress sheets, the forces on the four supporting points during the rotation of the relay rod head can be monitored to facilitate fine adjustment and prevent thread jamming. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0021] Figure 1 A front view of a relay rod head disassembly and assembly tool provided by an embodiment of the utility model during operation;

[0022] Figure 2 A right side view of a relay rod head disassembly and assembly tool provided by an embodiment of the utility model when in operation;

[0023] Figure 3 The embodiment of the utility model provides Figure 1 Middle M partial enlarged view;

[0024] Figure 4 The embodiment of the utility model provides Figure 2 Middle N partial enlarged image;

[0025] In the figure: guide rail 1, circular member 2, moving trolley 3, relay rod head 4, annular portion 4a, flange 4b, first lifting unit 5a, first adjusting screw 5a1, first mounting plate 5a2, first base 5a3, second lifting unit 5b, second adjusting screw 5b1, second mounting plate 5b2, second base 5b3, first rolling body 6, second rolling body 7, adjustment plate 8a, bracket 8b, universal ball 8c, elastic component 9, stress sheet 10, relay screw 11;

[0026] The relative displacement distance S1 between the adjusting plate and the bracket in the front-to-back direction;

[0027] Adjust the relative displacement distance S2 between the plate and the bracket in the left and right directions. DETAILED DESCRIPTION

[0028] The embodiments of the present utility model are further described below in conjunction with the accompanying drawings.

[0029] See attached Figure 1-4 In order to realize the above technical features, the purpose of the utility model is achieved as follows:

[0030] A relay rod head disassembly and assembly tool comprises a guide rail 1 and a circular component 2; a moving trolley 3 is provided on the top of the guide rail 1, a lifting device is installed on the top of the moving trolley 3, and the lifting device comprises a first lifting unit 5a and a second lifting unit 5b; a pair of first rolling bodies 6 are rotatably installed on the top of the first lifting unit 5a, and a pair of second rolling bodies 7 are rotatably installed on the top of the second lifting unit 5b. When the relay rod head 4 is disassembled, the circular member 2 is firstly mounted on the outer side of the annular portion 4a on the relay rod head 4, and connected to the relay rod head 4 in a detachable manner as an integral structure, and the position of the relay rod head 4 is adjusted so that the axis of the cylindrical surface of the circular member 2 outside is consistent with the axis of the thread of the relay rod head 4; then the position of the present application and the height of the first lifting unit 5a and the second lifting unit 5b are adjusted so that the first rolling body 6 supports the flange 4b ​​at the end of the thread of the relay rod head 4, and the second rolling body 7 supports the cylindrical surface of the outer side of the circular member 2; then, under the action of external force, the relay rod head 4 is rotated, and along with the movement of the moving trolley 3, the relay rod head 4 is separated from the relay screw 11. Since the rotation process of the relay rod head is completed under the support of the first rolling body 6 and the second rolling body 7, the occurrence of thread jamming caused by the inclination of the thread axis under the gravity of the relay rod head itself or the action of external force is effectively avoided, thereby improving the operation efficiency. When the relay rod head 4 is installed, the circular member 2 is firstly mounted on the outer side of the annular portion 4a of the relay rod head 4, and connected to the relay rod head 4 in a detachable manner to form an integral structure, and the position of the relay rod head 4 is adjusted so that the axis of the cylindrical surface of the circular member 2 outside is consistent with the axis of the thread of the relay rod head 4; then the position of the present application and the height of the first lifting unit 5a and the second lifting unit 5b are adjusted so that the first rolling body 6 supports the flange 4b ​​at the end of the thread of the relay rod head 4, and the second rolling body 6 supports the flange 4b ​​at the end of the thread of the relay rod head 4. The rolling body 7 supports the outer cylindrical surface of the circular component 2 and the thread axis of the relay rod head 4 is consistent with the axis of the relay screw 11; then, under the action of external force, the relay rod head 4 is rotated, and along with the movement of the moving trolley 3, the relay rod head 4 is connected with the relay screw 11. Since the rotation process of the relay rod head is completed under the support of the first rolling body 6 and the second rolling body 7, the occurrence of jamming caused by the inclination of the thread axis under the weight of the relay rod head itself or the action of external force is effectively avoided, thereby improving the working efficiency.

[0031] Furthermore, a horizontal play compensation mechanism is provided between the lifting device and the mobile trolley 3, and the horizontal play compensation mechanism includes an adjustment plate 8a installed at the bottom of the lifting device, and a universal ball 8c is installed below the adjustment plate 8a through a bracket 8b. A relative displacement distance S1 in the front-to-back direction and a relative displacement distance S2 in the left-to-right direction are provided between the adjustment plate 8a and the bracket 8b. Through the setting of the above-mentioned horizontal play compensation mechanism, the relay rod head 4 has a preset activity space in the horizontal direction during the rotation process, so as to avoid the relay rod head 4 from getting stuck due to excessive resistance caused by horizontal swinging during the rotation process.

[0032] Furthermore, a plurality of vertically distributed elastic components 9 are provided between the adjustment plate 8a and the movable trolley 3. The elastic components 9 are provided to prevent the relay rod head 4 from getting stuck due to excessive resistance caused by vertical swinging during rotation.

[0033] Furthermore, the elastic component 9 is a spring, and a spring support method is adopted, so that the entire tooling is non-rigidly connected in the vertical direction. Under the action of the horizontal movement compensation mechanism, the tooling has a certain amount of activity in the horizontal and vertical directions, so that the influence of the concentricity of the horizontal and circular components 2 of the relay on the disassembly of the relay rod head 4 is reduced, and the work efficiency and safety are greatly improved.

[0034] Furthermore, the first lifting unit 5a and the second lifting unit 5b are hydraulic cylinders, and the first rolling body 6 and the second rolling body 7 are respectively installed on the top of the vertically arranged hydraulic cylinders, so as to achieve height adjustment.

[0035] Furthermore, the first lifting unit 5a includes two first adjusting screws 5a1 distributed along the vertical direction, the first end of the first adjusting screw 5a1 is connected to the first mounting plate 5a2, the first rolling body 6 is installed on the top of the first mounting plate 5a2, and the second end of the first adjusting screw 5a1 is threadedly connected to the first base 5a3 installed on the top of the moving car 3. By adjusting the screwing length of the first adjusting screw 5a1, the purpose of adjusting the height of the first rolling body 6 is achieved.

[0036] Furthermore, the second lifting unit 5b includes two second adjusting screws 5b1 distributed along the vertical direction, the first end of the second adjusting screw 5b1 is connected to the second mounting plate 5b2, the second rolling body 7 is installed on the top of the second mounting plate 5b2, and the second end of the second adjusting screw 5b1 is threadedly connected to the second base 5b3 installed on the top of the moving trolley 3. By adjusting the screwing length of the second adjusting screw 5b1, the purpose of adjusting the height of the second rolling body 7 is achieved.

[0037] Furthermore, stress sheets 10 are installed between the first base 5a3, the second base 5b3 and the adjustment plate 8a respectively. The stress sheets 10 are arranged to monitor the forces on the four supporting points during the rotation of the relay rod head, so as to facilitate fine adjustment and prevent the threads from getting stuck.

Claims

1. A relay rod head disassembly and assembly tool, characterized in that: It comprises a guide rail (1) and a circular component (2); A movable trolley (3) is provided on the top of the guide rail (1), and a lifting device is installed on the top of the movable trolley (3), wherein the lifting device comprises a first lifting unit (5a) and a second lifting unit (5b); The circular component (2) is sleeved onto the outer side of the annular portion (4a) on the servomotor rod head (4), and is detachably connected to the servomotor rod head (4) to form an integral structure; A pair of first rolling bodies (6) are rotatably mounted on the top of the first lifting unit (5a), and the first rolling bodies (6) are used to support the flange (4b) located at the threaded end of the relay rod head (4); A pair of second rolling bodies (7) are rotatably mounted on the top of the second lifting unit (5b), and the second rolling bodies (7) are used to support the outer cylindrical surface of the circular component (2).

2. A relay rod head disassembly and assembly tool according to claim 1, characterized in that: A horizontal movement compensation mechanism is provided between the lifting device and the movable trolley (3), the horizontal movement compensation mechanism comprising an adjustment plate (8a) mounted on the bottom of the lifting device, a universal ball (8c) being mounted below the adjustment plate (8a) via a bracket (8b), and a relative displacement distance (S1) in the front-to-back direction and a relative displacement distance (S2) in the left-to-right direction are provided between the adjustment plate (8a) and the bracket (8b).

3. A relay rod head disassembly and assembly tool according to claim 2, characterized in that: A plurality of vertically distributed elastic components (9) are provided between the adjustment plate (8a) and the movable trolley (3).

4. A relay rod head disassembly and assembly tool according to claim 3, characterized in that: The elastic component (9) is a spring.

5. The relay rod head disassembly and assembly tool according to claim 1, characterized in that: The first lifting unit (5a) and the second lifting unit (5b) are hydraulic cylinders.

6. A relay rod head disassembly and assembly tool according to claim 4, characterized in that: The first lifting unit (5a) comprises two first adjusting screws (5a1) distributed along the vertical direction, the first end of the first adjusting screw (5a1) is connected to the first mounting plate (5a2), the first rolling body (6) is installed on the top of the first mounting plate (5a2), and the second end of the first adjusting screw (5a1) is threadedly connected to the first base (5a3) installed on the top of the moving trolley (3).

7. A relay rod head disassembly and assembly tool according to claim 6, characterized in that: The second lifting unit (5b) comprises two second adjusting screws (5b1) distributed along the vertical direction, the first end of the second adjusting screw (5b1) is connected to the second mounting plate (5b2), the second rolling body (7) is mounted on the top of the second mounting plate (5b2), and the second end of the second adjusting screw (5b1) is threadedly connected to the second base (5b3) mounted on the top of the moving trolley (3).

8. The relay rod head disassembly and assembly tool according to claim 7, characterized in that: Stress sheets (10) are installed between the first base (5a3) and the second base (5b3) and the adjustment plate (8a) respectively.

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