Turning gear of rotary machine

Abstract

The utility model relates to a turning gear of a rotating machine. The turning gear comprises a base, a driving wheel installed on the base, a sizing guide wheel installed on the base and a belt connected between the driving wheel and the sizing guide wheel. The driving wheel is connected with a power source. The number of the shaping guide wheels is multiple, and rotating shafts of the shaping guide wheels are arranged in parallel. The belt obtains a power source through the driving wheel and is attached to the target rotor under the guide of the shaping guide wheel so as to drive the target rotor to rotate. The sizing guide wheel is used for controlling deformation of the belt, the driving wheel is used for driving the belt to move, turning is achieved through friction force between the belt and the target rotor, turning operation can be easily achieved under the condition that a rotor transmission structure of equipment loses efficacy, and the turning difficulty is lowered.

Description

Technical Field

[0001] The utility model relates to the field of maintenance of rotating equipment, in particular to a barring gear for rotating machinery. Background Technique

[0002] Barring gear means that before the start of a rotating equipment (also known as rotating machinery) or during maintenance, in the case of the lack of the power source of the rotating equipment itself, the rotor of the rotating equipment is manually rotated slowly (which can be driven by hand or by an external small driving motor) to check whether its rotation is normal. For example, in the field of large-scale power generation equipment, barring gear is an essential operation. Before the start of the generator or during maintenance, the generator needs to be barred.

[0003] When traditional barring gear equipment is used, it is necessary to utilize the rotor transmission structure of the equipment itself to drive the rotor to rotate (such as gears or ratchets). However, in the actual barring gear operation scenario, the problem of the failure of the rotor transmission structure of the equipment itself often occurs (for example, the rotor transmission structure is removed or cannot operate normally due to a fault), resulting in great difficulty in barring gear. Content of the Utility Model

[0004] Based on this, the utility model provides a barring gear for rotating machinery, which controls the deformation of the belt by using a shaped guide pulley, and drives the belt to move by using a driving pulley, and realizes barring gear through the friction force between the belt and the target rotor. Even in the case of the failure of the rotor transmission structure of the equipment itself, the barring gear operation can be easily realized, and the difficulty of barring gear is reduced.

[0005] A barring gear for rotating machinery includes:

[0006] A base;

[0007] A driving pulley installed on the base; the driving pulley is used to connect to a power source;

[0008] A shaped guide pulley installed on the base; the number of the shaped guide pulleys is multiple and the rotating shafts of the shaped guide pulleys are all arranged in parallel; and

[0009] A belt connected between the driving pulley and the shaped guide pulley; the belt obtains the power source through the driving pulley, and fits with the target rotor under the guidance of the shaped guide pulley to drive the target rotor to rotate.

[0010] For the barring gear of the above-mentioned rotating machinery, during operation, the base is arranged close to the target rotor, so that the arc section formed by the belt in the area between the two shaped guide wheels fits the circumferential side of the target rotor. After the driving wheel is connected to the power source, it drives the belt to move, and then uses the friction force between the belt and the target rotor to drive the target rotor to rotate, so as to achieve the purpose of barring the rotor. Through the above design, the deformation of the belt is controlled by the shaped guide wheels, and the driving wheel is used to drive the belt to move. The barring of the rotor is realized through the friction force between the belt and the target rotor. Even when the rotor transmission structure of the equipment fails, the barring operation can be easily achieved, reducing the difficulty of barring the rotor.

[0011] In one embodiment, the number of belts is multiple and they are arranged side by side. Multiple belts arranged side by side can increase the contact surface with the target rotor, improve the transmission capacity, and enhance the reliability of barring the rotor.

[0012] In one embodiment, the barring gear of the rotating machinery further includes: a driving head installed on the base; the number of driving wheels is multiple and they are respectively connected to the driving head; each driving wheel is connected to the belt. The driving head is connected to the power source, and then the power is transmitted to the multiple driving wheels, and the multiple driving wheels are used to drive the belt, thereby increasing the driving force on the belt.

[0013] In one embodiment, the barring gear of the rotating machinery further includes: a tensioning wheel installed on the base; the tensioning wheel is connected to the belt to adjust the tightness of the belt. The tensioning wheel can adjust the tightness of the belt, so that the belt keeps in close contact with the shaped guide wheels and the driving wheels, and ensures that the belt is in a closely fitting state with the target rotor during operation.

[0014] In one embodiment, the barring gear of the rotating machinery further includes: a limiting wheel installed on the base; the limiting wheel is located between the shaped guide wheels to press the belt against the surface of the target rotor. During operation, one side of the belt is in contact with the target rotor, and the other side of the belt is restricted by the limiting wheel. Therefore, the limiting wheel provides the extrusion force to press the belt against the target rotor, enhancing the friction force between the belt and the target rotor.

[0015] In one embodiment, the number of limiting wheels is multiple and they are evenly spaced along an arc trajectory between the shaped guide wheels. Multiple limiting wheels can form multiple extrusion points on the belt, so that the arc section of the belt can be evenly in close contact with the target rotor.

[0016] In one embodiment, the barring gear of the rotating machine further includes: a bracket and a distance adjusting component mounted on the bracket, and the base is mounted on the distance adjusting component; the distance adjusting component is used to adjust the relative distance between the base and the target rotor. When the target rotor is immovable, the bracket can be mounted near the target rotor, and then the relative distance between the base and the target rotor can be adjusted through the distance adjusting component until the belt is in close contact with the target rotor, reducing the difficulty of on-site installation.

[0017] In one embodiment, the distance adjusting component includes: a hinge seat mounted on the bracket, a swing arm with one end hinged to the hinge seat, and a driving rod hinged to the other end of the swing arm; the base is mounted on the swing arm, and the swing arm is provided with a waist-shaped hole for hinging the driving rod; the driving rod is a linear motion structure to adjust the relative distance between the base and the target rotor. A lever-type distance adjusting structure is formed by using the hinge seat, the swing arm, and the driving rod. When the driving rod moves linearly, it drives the swing arm to rotate around the hinge seat, thereby adjusting the position of the base to achieve the purpose of adjusting the relative distance between the belt and the target rotor.

[0018] In one embodiment, the base is hinged to the middle section of the swing arm. Since the base is connected to the swing arm, when the swing arm swings, the base will generate offsets in the horizontal and vertical directions. When the linear movement distance of the driving rod is the same, the closer the mounting point of the base is to the driving rod, the greater the change rate of the offset of the base, which may not be conducive to the docking of the belt and the target rotor. And, considering the lever principle, the closer the base is to the driving rod, the greater the resistance to the linear movement of the driving rod. Therefore, considering the above factors comprehensively, the base is hinged to the middle section of the swing arm, so that the resistance during the linear movement of the driving rod is moderate, and the change rate of the horizontal offset of the base is not too large, facilitating the docking of the belt and the target rotor. At the same time, the base is hinged to the middle section of the swing arm, and one end of the swing arm is connected to the hinge seat. When the base is pressed down to the fitting position, the positions of the bracket and the target rotor fix the position of the base. When the belt drives the target rotor to rotate, the base will not shift due to the reaction force.

[0019] In one embodiment, the driving rod is a screw and a driving part is provided at the end far from the swing arm; the driving part is a handwheel or a connecting head; the handwheel is used for the user to manually drive the driving rod to rotate, and the connecting head is used to connect an external driver to drive the driving rod to rotate. The driving rod is designed as a screw structure, and then a handwheel or a connecting head is used to externally connect a driver, which can realize the control of the linear movement of the driving rod, with a simple structure, high efficiency and reliability. Description of the Drawings

[0020] Figure 1 Is a three-dimensional view of the barring gear of the rotating machine according to Embodiment 1 of the present invention;

[0021] Figure 2 The Figure 1 isometric view of another perspective of the barring gear of the rotating machinery shown;

[0022] Figure 3 is Figure 1 isometric view of the barring gear of the rotating machinery shown with the base hidden;

[0023] Figure 4 is Figure 3 isometric view of another perspective of the barring gear module shown with the base hidden;

[0024] Figure 5 is Figure 1 working principle diagram of the barring gear of the rotating machinery shown;

[0025] Figure 6 isometric view of the barring gear of the rotating machinery of the second embodiment of the present utility model;

[0026] Figure 7 is Figure 6 isometric view of another perspective of the barring gear of the rotating machinery shown;

[0027] Figure 8 is Figure 6 front view of the barring gear of the rotating machinery shown;

[0028] Figure 9 is Figure 6 usage state diagram of the barring gear of the rotating machinery shown;

[0029] Figure 10 is Figure 9 state diagram of the barring gear of the rotating machinery shown before distance adjustment;

[0030] Figure 11 is Figure 10 state diagram of the barring gear of the rotating machinery shown after distance adjustment.

[0031] The meanings of the reference numerals in the drawings are as follows:

[0032] 100 - Barring gear of the rotating machinery;

[0033] 10 - Base, 11 - Partition board, 12 - Bolt;

[0034] 20 - Driving wheel;

[0035] 30 - Shaped guiding wheel;

[0036] 40 - Belt;

[0037] 50 - Driving head;

[0038] 60 - Tensioning wheel;

[0039] 70 - Limit wheel;

[0040] 80 - Auxiliary guide wheel;

[0041] 90 - Bracket, 91 - Distance adjustment component, 911 - Hinge seat, 912 - Swing arm, 913 - Drive rod, 9131 - Drive part;

[0042] 200 - Target rotor. Detailed implementation manners

[0043] To make the above - mentioned objects, features, and advantages of the present utility model more obvious and understandable, the following will describe the detailed implementation manners of the present utility model in conjunction with the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0044] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the accompanying drawings. These are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present utility model.

[0045] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0046] In the present utility model, unless otherwise clearly stipulated and defined, terms such as "installation", "connection", "linkage", "fixation", etc. shall 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 or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0047] In the present utility model, unless otherwise clearly stipulated and defined, the first feature being "on" or "under" the second feature can be 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, the first feature being "above", "over" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature is at a higher horizontal level than the second feature. The first feature being "under", "beneath" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature is at a lower horizontal level than the second feature.

[0048] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation manner.

[0049] Embodiment 1

[0050] As Figures 1 to 5 shown, it is the barring gear 100 of the rotating machinery of Embodiment 1 of the present utility model.

[0051] As Figures 1 to 4 shown, the barring gear 100 of the rotating machinery includes: a base 10, a driving wheel 20 installed on the base 10, a shaped guide wheel 30 installed on the base 10, and a belt 40 connected between the driving wheel 20 and the shaped guide wheel 30. As Figure 5 shown, the driving wheel 20 is used to connect to a power source. The number of the shaped guide wheels 30 is multiple and the rotating shafts of the shaped guide wheels 30 are all arranged parallel to each other. The belt 40 is in a closed loop structure, obtains the power source through the driving wheel 20, and fits with the target rotor 200 under the guidance of the shaped guide wheel 30 to drive the target rotor 200 to rotate. Here, reference can be made to Figure 10 and Figure 11, during use, the barring gear 100 of the rotating machine is placed outside the target rotor 200, and then the position of the base 10 is adjusted so that the belt 40 fits the target rotor 200. At the same time, the driving wheel 20 is connected to a power source (for example, an external small driving motor or a manually driven rocker mechanism), thereby driving the belt 40 to rotate to achieve the purpose of turning the target rotor 200.

[0052] In the following, in combination with Figures 1 to 6 , the barring gear 100 of the above rotating machine will be further described.

[0053] In this solution, the base 10 is the installation carrier of the driving wheel 20 and the shaped guide wheel 30, playing a role in support and stability. Therefore, the specific structure of the base 10 can be various and is not limited to a certain fixed structure. For example, as Figure 2 shown, in this embodiment, the base 10 includes: a plurality of partition plates 11 arranged parallel to each other at intervals and bolts 12 connecting the partition plates 11 in series. The advantage of this design is that the structure is simple and the disassembly and assembly are convenient.

[0054] As Figures 3 to 4 shown, in this embodiment, the number of shaped guide wheels 30 is two, and they are respectively located on the left and right sides at the bottom of the base 10. Refer to Figure 5 , the function of the shaped guide wheel 30 is to limit the area where the belt 40 contacts the target rotor 200. It should be noted that during actual operation, the base 10 can be arranged above the target rotor 200, or on the left or right side of the target rotor 200. Therefore, by changing the placement posture of the base 10, or by changing the installation position of the shaped guide wheel 30 on the premise that the placement posture of the base 10 remains unchanged, the requirements can be met. In addition, in other embodiments, the number of shaped guide wheels 30 can also be three, four, five, or more, and their installation positions can also be adjusted. For example, the shaped guide wheel 30 can also be four, and they are arranged in pairs and close to each other, and the installation position is not limited to the left and right sides at the bottom of the base 10.

[0055] Brief description of the working principle:

[0056] As Figure 5As shown, during operation, the base 10 is set close to the target rotor, such that the belt 40 forms an arc-shaped section in the area between the two shaping guide wheels 30 that fits against the circumferential side of the target rotor 200 (common contact positions, such as the outer circumferential side of the coupling wheel or the journal of the target rotor 200. Additionally, in some scenarios, it can also be used to drive multiple coupling wheels or multiple journals simultaneously). After the driving wheel 20 is connected to the power source, it drives the belt 40 to move, and then utilizes the frictional force between the belt 40 and the target rotor 200 to drive the target rotor 200 to rotate, thereby achieving the purpose of barring the machine. Supplementary note: In the non-use state, the area of the belt 40 between the two shaping guide wheels 30 is in a straight tensioned or slightly sagging arc state, while the upward arc shown in each drawing is the state when the belt 40 fits against the target rotor 200.

[0057] Considering that this solution is based on the principle of driving the target rotor 200 to rotate by the frictional force between the belt 40 and the target rotor 200, in order to improve the driving efficiency and the reliability of barring the machine, improvements can also be made. For example, the number of belts 40 can be multiple and arranged side by side. Multiple belts 40 arranged side by side can increase the contact surface with the target rotor 200, improve the transmission capacity, and enhance the reliability of barring the machine. As Figure 3 and Figure 4 shown, in this embodiment, the number of belts 40 is two and they are arranged side by side. During operation, both belts 40 fit against the target rotor 200.

[0058] In order to improve the driving efficiency of the belt 40, as Figures 3 to 5 shown, in this embodiment, the barring device 100 of this rotating machine can further include: a driving head 50 installed on the base 10. At the same time, the number of driving wheels 20 is multiple and they are respectively connected to the driving head 50. Each driving wheel 20 is connected to the belt 40. By connecting the driving head 50 to the power source and then transmitting the power to the multiple driving wheels 20, the multiple driving wheels 20 are used to drive the belt 40, thereby increasing the driving force on the belt 40. In this embodiment, the driving head 50 realizes the transmission with the driving wheel 20 through gear meshing. For example, in this embodiment, there is one driving head 50 and two driving wheels 20. The driving head 50 is provided with a first transmission gear, and each driving wheel 20 is provided with a second transmission gear. The second transmission gear and the first transmission gear mesh with each other, such that the driving head 50 can drive the two driving wheels 20 to rotate simultaneously. In other embodiments, it can also be through a transmission belt to realize the transmission between the driving head 50 and the driving wheel 20.

[0059] In addition, in some embodiments, a reduction gear set or a speed reducer can also be provided between the driving head 50 and the driving wheel 20, thereby achieving the purpose of speed change or increasing the output torque.

[0060] To improve the transmission reliability between the belt 40 and the target rotor 200, the barring gear 100 of this rotating machinery can also be improved.

[0061] For example, as Figures 3 to 5 shown, in this embodiment, the barring gear 100 of this rotating machinery may further include: a tension pulley 60 installed on the base 10. The tension pulley 60 is connected to the belt 40 to adjust the tightness of the belt 40. The tension pulley 60 can adjust the tightness of the belt 40 so that the belt 40 remains in close contact with the shaping guide pulley 30 and the driving pulley 20, and ensures that the belt 40 is in a closely fitting state with the target rotor 200 during operation.

[0062] Again, for example, the barring gear 100 of this rotating machinery may further include: a limiting pulley 70 installed on the base 10. The limiting pulley 70 is located between the shaping guide pulleys 30 to press the belt 40 against the surface of the target rotor 200. During operation, one side of the belt 40 is in contact with the target rotor 200, and the other side of the belt 40 is restricted by the limiting pulley 70. Therefore, the limiting pulley 70 provides a squeezing force to press the belt 40 against the target rotor 200, enhancing the friction between the belt 40 and the target rotor 200.

[0063] Furthermore, the number of limiting pulleys 70 is multiple and they are evenly spaced along an arc-shaped trajectory between the shaping guide pulleys 30. The multiple limiting pulleys 70 can form multiple squeezing points on the belt 40, enabling the arc-shaped section of the belt 40 to be evenly in close contact with the target rotor 200. For example, in this embodiment, as Figure 5 shown, the number of limiting pulleys 70 is three and they are evenly spaced along an arc-shaped trajectory between two shaping guide pulleys 30.

[0064] In addition, preferably, the limiting pulley 70 can be a structure with adjustable position, so as to be applicable to target rotors with different diameters.

[0065] In addition, to facilitate adjusting the running direction of the belt 40, as Figures 3 to 5 shown, the barring gear 100 of this rotating machinery further includes: auxiliary guide pulleys 80 installed on the base 10. The number of auxiliary guide pulleys 80 is multiple, and they are distributed between the driving pulley 20 and the shaping guide pulleys 30.

[0066] The above-mentioned barring gear 100 of the rotating machinery controls the deformation of the belt 40 by using the shaping guide pulley 30, and drives the belt 40 to move by using the driving pulley 20. The barring is achieved through the friction between the belt 40 and the target rotor 200. Even when the rotor transmission structure of the equipment itself fails (that is, the target rotor cannot be driven by the power source of the equipment itself), the barring operation can be easily achieved, reducing the difficulty of barring.

[0067] Embodiment 2

[0068] As shown Figures 6 to 11 in the figure, it is the barring gear 100 of the rotating machinery in the second embodiment of the present utility model.

[0069] The difference between this embodiment and the first embodiment is that, as shown Figures 6 to 8 in the figure, in this embodiment, the barring gear 100 of the rotating machinery further includes: a bracket 90 and a distance adjusting component 91 installed on the bracket 90, and the base 10 is installed on the distance adjusting component 91. The distance adjusting component 91 is used to adjust the relative distance between the base 10 and the target rotor 200. As shown Figures 9 to 11 in the figure, when the target rotor 200 is immovable, the bracket 90 can be installed near the target rotor 200, and then the relative distance between the base 10 and the target rotor 200 can be adjusted through the distance adjusting component 91 until the belt 40 is in close contact with the target rotor 200, reducing the difficulty of on-site installation.

[0070] In this solution, there are various specific implementation manners of the distance adjusting component 91, which are mainly divided into two design ideas:

[0071] First, the distance adjusting component 91 is a linear sliding telescopic structure, and the distance between the base 10 and the target rotor 200 is adjusted by means of linear sliding telescoping. For example, the distance adjusting component 91 is a screw-type linear motion structure composed of a screw, a nut sleeve, and a slide rail.

[0072] Second, the distance adjusting component 91 is a lever-type swinging structure. For example, as shown Figure 8 in the figure, in this embodiment, the distance adjusting component 91 includes: a hinge seat 911 installed on the bracket 90, a swing arm 912 hinged at one end to the hinge seat 911, and a driving rod 913 hinged at the other end of the swing arm 912. The base 10 is installed on the swing arm 912, and the swing arm 912 is provided with a waist-shaped hole for hinging the driving rod 913. The driving rod 913 is a linear motion structure to adjust the relative distance between the base 10 and the target rotor 200. A lever-type distance adjusting structure is formed by using the hinge seat 911, the swing arm 912, and the driving rod 913. When the driving rod 913 moves linearly, it drives the swing arm 912 to rotate around the hinge seat 911, thereby adjusting the position of the base 10 to achieve the purpose of adjusting the relative distance between the belt 40 and the target rotor 200. At the same time, for the lever-type distance adjusting structure, the load requirement for the driving force of the driving rod 913 is relatively low. It should be noted that for the lever-type distance adjusting component 91, when adjusting the distance between the belt 40 and the target rotor 200, the base 10 will generate offset amounts in the horizontal and vertical directions. When installing the bracket 90, it is necessary to consider the offset amounts in the horizontal and vertical directions generated during adjustment at the same time to ensure that the belt 40 can fit the target rotor.

[0073] Furthermore, the base 10 can be hinged to the swing arm 912. When adjusting the distance, although the base 10 will have an offset, the amplitude of the offset can be compressed to a smaller range by artificially setting the installation position (i.e., finding a suitable position for installing the bracket 90), and the belt 20 is a flexible structure, so even if there is a small offset, the impact on the driving effect of the target rotor 200 is relatively small. For example, as Figure 5 shown, the base 10 is hinged to the middle section of the swing arm 912. Since the base 10 is connected to the swing arm 912, when the swing arm 912 swings, the base 10 will have offsets in the horizontal and vertical directions. When the linear movement distance of the driving rod 913 is the same, the closer the installation point of the base 10 is to the driving rod 913, the greater the change rate of the offset of the base 10, which may be unfavorable for the docking of the belt 40 and the target rotor 200. Also, considering the lever principle, the closer the base 10 is to the driving rod 913, the greater the resistance to the linear movement of the driving rod 913 will be. Therefore, considering the above factors comprehensively, the base 10 is hinged to the middle section of the swing arm 912, so that the resistance of the driving rod 913 during linear movement is moderate, and the change rate of the horizontal offset of the base 10 is not too large, which is convenient for the belt 40 to dock with the target rotor 200. At the same time, the base 10 is hinged to the middle section of the swing arm 912, and one end of the swing arm 912 is connected to the hinge seat. When the base 10 is pressed down to the fitting position, the positions of the bracket 90 and the target rotor 200 fix the position of the base 10. When the belt 40 drives the target rotor 200 to rotate, the base 10 will not shift due to the reaction force. For example, as Figure 11 shown, during barring gear operation, the base 10 will not shift left and right due to the reaction force.

[0074] In addition, as Figures 6 to 8 shown, the driving rod 913 is a screw rod, and a driving part 9131 is provided at the end away from the swing arm 912. The driving part 9131 is a handwheel or a connector. The handwheel is used for the user to manually drive the driving rod 913 to rotate. In other embodiments, the driving part 9131 can also be a connector, which is used to connect an external driver (for example, a rotary motor or a rotary cylinder) to drive the driving rod 9131 to rotate. Designing the driving rod 913 as a screw rod structure and then externally connecting a driver through a handwheel or a connector can achieve the control of the linear movement of the driving rod 913, with a simple structure, high efficiency and reliability.

[0075] The other structures of this embodiment are the same as those of Embodiment 1 and can also achieve the beneficial effects of Embodiment 1, so they will not be described in detail.

[0076] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0077] The above embodiments only express the preferred embodiments of the present utility model, and the description is relatively specific and detailed. However, it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several variations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.

Claims

1. A turning device for a rotating machine, characterized in that: include: Pedestal; a driving wheel mounted on the base; The driving wheel is used to connect to a power source; A shaping guide wheel installed on the base; the shaping guide wheel is in multiple numbers and the rotating shafts of the shaping guide wheels are arranged parallel to each other; and A belt is connected between the driving wheel and the shaping guide wheel; the belt obtains a power source through the driving wheel, and fits with the target rotor under the guidance of the shaping guide wheel to drive the target rotor to rotate.

2. The turning machine turning device according to claim 1, characterized in that: The belts are multiple and arranged side by side.

3. The turning machine turning device according to claim 1, characterized in that: Also includes: A driving head mounted on the base; the driving wheels are multiple and connected to the driving heads respectively; Each of the driving wheels is connected to the belt.

4. The turning machine turning device according to claim 1, characterized in that: Also includes: A tensioning wheel mounted on the base; The tension wheel is connected to the belt to adjust the tightness of the belt.

5. The turning machine turning device according to claim 1, characterized in that: Also includes: A limiting wheel is mounted on the base; the limiting wheel is located between the shaping guide wheels to press the belt against the surface of the target rotor.

6. The turning machine barring device according to claim 5, characterized in that: The number of the limiting wheels is multiple and they are evenly spaced and distributed between the shaping guide wheels along an arc track.

7. The turning machine barring device according to claim 1, characterized in that: Also includes: A bracket and a distance adjustment component mounted on the bracket, and the base is mounted on the distance adjustment component; The distance adjustment component is used to adjust the relative distance between the base and the target rotor.

8. The turning machine turning device according to claim 7, characterized in that: The distance adjustment assembly includes: an articulated seat installed on the bracket, a swing arm with one end hinged on the articulated seat, and a driving rod hinged on the other end of the swing arm; the base is installed on the swing arm; the driving rod is a linear motion structure to adjust the relative distance between the base and the target rotor.

9. The turning machine barring device according to claim 8, characterized in that: The base is hinged to the middle section of the swing arm.

10. The turning machine barring device according to claim 8, characterized in that: The driving rod is a screw rod and a driving part is provided at one end away from the swing arm; the driving part is a handwheel or a connecting head; the handwheel is used for the user to manually drive the driving rod to rotate, and the connecting head is used to connect to an external driver to drive the driving rod to rotate.

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