Lifting device for mounting steam turbine of thermal power plant

Abstract

The invention belongs to the technical field of lifting devices, and particularly discloses a lifting device for mounting a steam turbine of a thermal power plant. The lifting device for mounting the steam turbine of the thermal power plant comprises a base, a rotary driving part, a lifting driving part, a moving assembly and a clamp, wherein the rotary driving part is arranged on the base; the lifting driving part is arranged at the execution end of the rotary driving part, and the rotary driving part is used for driving the lifting driving part to rotate around the vertical axis; the moving assembly is arranged at the execution end of the lifting driving piece. The lifting driving piece is used for driving the moving assembly to ascend and descend. The clamp is connected with the moving assembly, the moving assembly is used for driving the clamp to move in the horizontal direction, and the clamp is used for clamping parts.

Description

Technical Field

[0001] The invention belongs to the technical field of lifting devices, and in particular relates to a lifting device for installing a steam turbine in a thermal power plant. Background Art

[0002] During the installation, inspection and maintenance of steam turbines in thermal power plants, parts need to be hoisted by hoisting devices. The steam turbine hoisting devices in related technologies usually hoist parts by hooks. During the hoisting process, the parts are prone to shaking and easily collide with the steam turbine, thereby causing certain damage to the surface of the steam turbine. Summary of the invention

[0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. To this end, an embodiment of the present invention provides a lifting device for installing a steam turbine in a thermal power plant, which has a stable lifting process and can reduce damage to the surface of the steam turbine.

[0004] The lifting device for installing a steam turbine in a thermal power plant according to an embodiment of the present invention comprises a base, a rotating drive member, a lifting drive member, a moving assembly and a clamp, wherein the rotating drive member is arranged on the base; the lifting drive member is arranged on the execution end of the rotating drive member, and the rotating drive member is used to drive the lifting drive member to rotate around a vertical axis; the moving assembly is arranged on the execution end of the lifting drive member, and the lifting drive member is used to drive the moving assembly to rise and fall; the clamp is connected to the moving assembly, and the moving assembly is used to drive the clamp to move in a horizontal direction, and the clamp is used to clamp parts.

[0005] When it is necessary to use the lifting device for installing the steam turbine in a thermal power plant in this embodiment to lift parts, the rotating driving member can drive the clamp to rotate through the lifting driving member and the moving component. The lifting driving member can drive the clamp to lift and lower through the moving component. The moving component can drive the clamp to move in the horizontal direction, so that the clamp can be moved to a preset position to clamp the parts as needed. The moving component can drive the clamp to move stably, and the clamp clamps the parts, which can reduce the shaking of the parts during the lifting process, thereby reducing the damage to the steam turbine caused by the parts during the lifting process.

[0006] In this embodiment, the clamp includes a suspension rod, a clamping jaw and a clamping drive. The top of the suspension rod is connected to the moving assembly. Two clamping jaws are provided. The two clamping jaws are arranged opposite to each other and the tops of the two clamping jaws are hinged to the bottom end of the suspension rod through a hinge shaft. The two ends of the clamping drive are connected to the two clamping jaws one by one so as to drive the two clamping jaws to move closer to or away from each other through the clamping drive.

[0007] In this embodiment, the clamp further includes an anti-slip pad, and the anti-slip pad is disposed on two opposite side surfaces of the clamping parts of the two clamping jaws.

[0008] In this embodiment, the clamping claw includes a connecting portion and a clamping portion, the connecting portion is connected to the suspension rod, the clamping portion is detachably connected to the connecting portion, and the clamping portion is a contoured portion that matches the shape of the part to be clamped.

[0009] In this embodiment, the suspension rod includes a supporting portion and a suspension portion, the supporting portion is connected to the moving component, and the suspension portion is arranged at the bottom of the supporting portion and is rotatably connected to the supporting portion.

[0010] In this embodiment, the moving assembly also includes a guide rail, two driving wheels, a conveyor belt, a driving member and a connecting member. One end of the guide rail is connected to the execution end of the lifting driving member. The two driving wheels are arranged at intervals along the extension direction of the guide rail. The conveyor belt is wound around the two driving wheels. The connecting member is respectively connected to the clamp and the conveyor belt. The driving member is connected to one of the two driving wheels to drive the driving wheel to rotate. The clamp is connected to the connecting member.

[0011] In this embodiment, the connecting member is rollingly connected to the guide rail.

[0012] In this embodiment, the rotary drive member is an electric rotary disk.

[0013] In this embodiment, the lifting drive member is an electric lifting column.

[0014] In this embodiment, the lifting device for installing a steam turbine in a thermal power plant further includes a roller, and a plurality of the rollers are provided, and the plurality of the rollers are distributed at the bottom of the base. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The invention is a schematic structural diagram of a lifting device for installing a steam turbine in a thermal power plant according to an embodiment of the present invention.

[0016] Reference numerals:

[0017] 1. Base; 2. Rotating drive component; 3. Lifting drive component; 4. Moving component; 5. Guide rail; 6. Suspension rod; 7. Articulated shaft; 8. Clamping drive component; 9. Clamping claw; 10. Anti-slip pad; 11. Roller. DETAILED DESCRIPTION

[0018] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0019] In this embodiment, if Figure 1 As shown, the lifting device for installing the steam turbine in a thermal power plant includes a base 1, a rotating drive member 2, a lifting drive member 3, a moving assembly 4 and a clamp, wherein the rotating drive member 2 is arranged on the base 1; the lifting drive member 3 is arranged at the execution end of the rotating drive member 2, and the rotating drive member 2 is used to drive the lifting drive member 3 to rotate around the vertical axis; the moving assembly 4 is arranged at the execution end of the lifting drive member 3, and the lifting drive member 3 is used to drive the moving assembly 4 to rise and fall; the clamp is connected to the moving assembly 4, and the moving assembly 4 is used to drive the clamp to move in the horizontal direction, and the clamp is used to clamp parts.

[0020] It should be noted that the rotating drive member 2 can drive the clamp to rotate through the lifting drive member 3 and the moving component 4. The lifting drive member 3 can drive the clamp to lift and lower through the moving component 4. The moving component 4 can drive the clamp to move in the horizontal direction, so that the clamp can be moved to a preset position to clamp the parts as needed. The moving component 4 can drive the clamp to move stably. The clamp clamps the parts, which can reduce the shaking of the parts during the lifting process, thereby reducing the damage to the turbine caused by the parts during the lifting process.

[0021] In this embodiment, if Figure 1 As shown, the clamp includes a suspension rod 6, a clamping jaw 9 and a clamping drive 8. The top of the suspension rod 6 is connected to the moving component 4. Two clamping jaws 9 are provided. The two clamping jaws 9 are arranged opposite to each other and the tops of the two clamping jaws 9 are hinged to the bottom end of the suspension rod 6 through a hinge shaft 7. The two ends of the clamping drive 8 are connected to the two clamping jaws 9 one by one so as to drive the two clamping jaws 9 to move closer to or away from each other through the clamping drive 8.

[0022] Exemplarily, the clamping drive member 8 is an electric hydraulic push rod, which can be suitable for clamping objects. Of course, the clamping drive member 8 can also be set to other forms, which are not limited here.

[0023] It can be understood that by setting up the suspension rod 6, the installation of the clamp 9 can be facilitated, so that the movable component 4 drives the clamp 9 to move through the suspension rod 6, and the tops of the two clamps 9 are hinged to the bottom end of the suspension rod 6 through the hinge shaft 7, so that the two clamps 9 can be deflected at a certain angle relative to the suspension rod 6, thereby making it easier to clamp parts through the clamp 9. When it is necessary to clamp parts through the clamp 9, the two clamps 9 can be driven by the clamping drive 8 to approach each other until the parts are clamped. When it is necessary to release the parts, the two clamps 9 are driven away from each other by the clamping drive 8, thereby releasing the parts.

[0024] In this embodiment, if Figure 1 As shown, the clamp further includes an anti-skid pad 10 , and the anti-skid pad 10 is disposed on two opposite side surfaces of the clamping parts of the two clamping jaws 9 .

[0025] Exemplarily, the anti-skid pad 10 can be a rubber or silicone anti-skid pad 10. Specifically, the anti-skid pad 10 can be fixed to the clamping jaw 9 by bonding or bolting. The fixing method of the anti-skid pad 10 can be selected by those skilled in the art as needed, and is not limited here.

[0026] The surface of the anti-skid pad 10 that clamps the parts can be provided with anti-skid patterns to improve the anti-skid effect. The specific shape of the anti-skid patterns can be selected as needed and will not be described in detail here.

[0027] By providing the anti-slip pad 10 , the friction between the clamping jaw 9 and the component can be increased, which is conducive to the clamping jaw 9 to stably and reliably clamp the component and reduce the possibility of the component clamped by the clamping jaw 9 slipping.

[0028] In this embodiment, the clamping jaw 9 includes a connecting portion and a clamping portion, wherein the connecting portion is connected to the suspension rod 6, and the clamping portion is detachably connected to the connecting portion, and the clamping portion is a contoured portion matching the shape of the part to be clamped.

[0029] The connecting portion is connected to the suspension rod 6 , specifically, the connecting portion is hinged to the suspension rod 6 via a hinge shaft 7 .

[0030] For example, the detachable connection between the clamping part and the connecting part may be threaded connection or clamping, etc. The specific detachable connection between the clamping part and the connecting part may be selected by those skilled in the art as needed and is not limited here.

[0031] Specifically, the clamping parts can be provided in plurality, each of which has a different shape, and each clamping part matches the shape of a component to be clamped, so that the clamping part can better fit the component to be clamped and improve the stability of the component clamping.

[0032] The clamping part in this embodiment is detachably connected to the connecting part, which can facilitate the replacement of the clamping part. The clamping part is a contoured part that matches the shape of the component to be clamped, so that the clamping part of the corresponding shape can be replaced according to the shape of the component to be clamped to improve the stability of clamping the component.

[0033] In this embodiment, if Figure 1 As shown, the suspension rod 6 includes a supporting portion and a hanging portion, the supporting portion is connected to the moving assembly 4, and the hanging portion is arranged at the bottom of the supporting portion and is rotatably connected to the supporting portion.

[0034] Exemplarily, the support part is a support plate, and a connection hole is provided on the support part, and the suspension part is rotatably connected in the connection hole. Further, a bearing can be provided in the connection hole, and the suspension part is connected to the inner hole of the bearing, so that the suspension part can rotate relative to the support part.

[0035] The suspension part in this embodiment is rotatably connected to the support part, and the clamp can be driven to rotate by rotating the suspension part, so that the parts can be clamped from different directions, thereby improving the convenience of clamping the parts.

[0036] In this embodiment, the moving component 4 includes a guide rail 5, two driving wheels (not shown in the figure), a conveyor belt (not shown in the figure), a driving member (not shown in the figure) and a connecting member (not shown in the figure). One end of the guide rail 5 is connected to the execution end of the lifting driving member 3. The two driving wheels are arranged at intervals along the extension direction of the guide rail 5. The conveyor belt is wound around the two driving wheels. The connecting member is respectively connected to the clamp and the conveyor belt and the guide rail 5. The driving member is connected to one of the two driving wheels to drive the driving wheel to rotate.

[0037] Specifically, the guide rail 5 includes a mounting plate and a guide portion, and the mounting plate and the execution end of the lifting drive member 3 can be connected by bolts to fix the mounting plate. The guide portion is arranged on the mounting plate, and the guide portion can be integrally formed with the mounting plate to improve the overall strength of the guide rail 5. The guide portion extends in the horizontal direction, and the connecting member is slidably connected to the guide portion. Furthermore, a dovetail groove can be provided on the connecting member, and the shape of the guide rail 5 matches the dovetail groove so that the connecting member is stably connected to the guide rail 5. Exemplarily, the connecting member can be connected to the conveyor belt and the clamp by bolts respectively for easy installation and disassembly.

[0038] The driving member may be a motor, through which a rotational motion may be output, so that the motor may drive a driving wheel to rotate, and further the driving wheel may drive the conveyor belt to move in a circular motion.

[0039] When the clamp needs to be driven to move by the moving component 4, the driving wheel can be driven to rotate through the driving member, and the driving wheel drives the conveyor belt to move. The conveyor belt can drive the clamp to move along the guide rail 5 through the connecting member, so that the mobile driving member can drive the clamp to move to the preset position to clamp the parts.

[0040] In this embodiment, the connecting member is rollingly connected to the guide rail 5 .

[0041] Specifically, a ball bearing is arranged in the connecting member, and the connecting member is rollingly connected to the guide rail 5 through the ball bearing. The arrangement of the ball bearing is conventional in the prior art and will not be described in detail here.

[0042] The connecting member in this embodiment is rollingly connected to the guide rail 5 , which can reduce the friction between the connecting member and the guide rail 5 and facilitate the movement of the connecting member along the guide rail 5 .

[0043] In this embodiment, the rotary driving member 2 is an electric rotary disk.

[0044] It can be understood that the electric rotating plate can make the lifting drive member 3 rotate accurately and stably to a preset angle, so as to facilitate the lifting drive member 3 to drive the moving assembly 4 and the clamp to move accurately and stably to the preset position.

[0045] In this embodiment, the lifting drive member 3 is an electric lifting column. The specific structure of the electric rotating disk can be selected by those skilled in the art as needed and is not limited here.

[0046] It is understandable that the lifting drive member 3 is set as an electric lifting column, which can safely and stably drive the clamp to lift through the moving component 4. The specific structure of the electric lifting column can be selected by those skilled in the art as needed and is not limited here.

[0047] In this embodiment, if Figure 1 As shown, the lifting device for installing a steam turbine in a thermal power plant further includes a roller 11 , and a plurality of rollers 11 are provided, and the plurality of rollers 11 are distributed at the bottom of the base 1 .

[0048] Exemplarily, the number of rollers 11 may be three, four, etc. The arrangement of the rollers 11 is conventional in the prior art and will not be described in detail herein.

[0049] It can be understood that by arranging a plurality of rollers 11 at the bottom of the base 1, the base 1 can be easily moved, so that the lifting device can be moved as a whole through the base 1, so as to facilitate the lifting of parts.

[0050] When it is necessary to use the lifting device for installing the steam turbine in a thermal power plant in this embodiment to lift parts, the rotating drive member 2 can drive the clamp to rotate through the lifting drive member 3 and the moving component 4, the lifting drive member 3 can drive the clamp to lift and lower through the moving component 4, the driving wheel can be driven to rotate through the driving member, the driving wheel drives the conveyor belt to move, and the conveyor belt can drive the clamp to move along the guide rail 5 through the connecting member, so that the moving component 4 can drive the clamp to move to a preset position, and then the clamp can be moved to a preset position to clamp or place the parts through the cooperation of the rotating drive member 2, the lifting drive member 3 and the moving component 4, the moving component 4 can guide the clamp so as to drive the clamp to move stably, and the parts can be stably clamped through the contoured clamping claws 9, thereby reducing the shaking of the parts during the lifting process, thereby reducing the damage to the steam turbine caused by the parts during the lifting process.

[0051] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0052] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0053] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0055] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0056] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A lifting device for installing a steam turbine in a thermal power plant, characterized in that: It includes a base, a rotating drive member, a lifting drive member, a moving assembly and a clamp, wherein the rotating drive member is arranged on the base; the lifting drive member is arranged on the execution end of the rotating drive member, and the rotating drive member is used to drive the lifting drive member to rotate around a vertical axis; the moving assembly is arranged on the execution end of the lifting drive member, and the lifting drive member is used to drive the moving assembly to rise and fall; the clamp is connected to the moving assembly, and the moving assembly is used to drive the clamp to move in a horizontal direction, and the clamp is used to clamp parts.

2. The lifting device for installing a steam turbine in a thermal power plant according to claim 1, characterized in that: The clamp includes a suspension rod, a clamping jaw and a clamping drive. The top of the suspension rod is connected to the moving assembly. Two clamping jaws are provided. The two clamping jaws are arranged opposite to each other and the tops of the two clamping jaws are hinged to the bottom end of the suspension rod through a hinge shaft. The two ends of the clamping drive are connected to the two clamping jaws one by one so as to drive the two clamping jaws to move closer to or away from each other through the clamping drive.

3. The lifting device for installing a steam turbine in a thermal power plant according to claim 2, characterized in that: The clamp further comprises an anti-skid pad, and the anti-skid pad is arranged on two opposite side surfaces of the clamping parts of the two clamping jaws.

4. The lifting device for installing a steam turbine in a thermal power plant according to claim 2, characterized in that: The clamping claw comprises a connecting portion and a clamping portion, wherein the connecting portion is connected to the suspension rod, and the clamping portion is detachably connected to the connecting portion, and the clamping portion is a contoured portion matching the shape of a piece to be clamped.

5. The lifting device for installing a steam turbine in a thermal power plant according to claim 2, characterized in that: The suspension rod comprises a supporting part and a hanging part, wherein the supporting part is connected to the moving assembly, and the hanging part is arranged at the bottom of the supporting part and is rotatably connected to the supporting part.

6. The lifting device for installing a steam turbine in a thermal power plant according to claim 1, characterized in that: The moving assembly also includes a guide rail, two driving wheels, a conveyor belt, a driving member and a connecting member. One end of the guide rail is connected to the execution end of the lifting driving member. The two driving wheels are arranged at intervals along the extension direction of the guide rail. The conveyor belt is wound around the two driving wheels. The connecting member is respectively connected to the clamp and the conveyor belt. The driving member is connected to one of the two driving wheels to drive the driving wheel to rotate. The clamp is connected to the connecting member.

7. The lifting device for installing a steam turbine in a thermal power plant according to claim 6, characterized in that: The connecting member is rollingly connected to the guide rail.

8. The lifting device for installing a steam turbine in a thermal power plant according to claim 1, characterized in that: The rotary driving member is an electric rotary disk.

9. The lifting device for installing a steam turbine in a thermal power plant according to claim 1, characterized in that: The lifting drive member is an electric lifting column.

10. The lifting device for installing a steam turbine in a thermal power plant according to claim 1, characterized in that: It also includes a roller, and a plurality of the rollers are provided, and the plurality of the rollers are distributed at the bottom of the base.

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