A turning gear for a rotating equipment
By using a clamping method with fixed and movable clamps, combined with a worm gear mechanism and chain drive, the problem of damage to couplings and inconvenience in operation caused by existing turning tools is solved, and safe and flexible turning operation is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZOUPING COUNTY HONGXU THERMAL POWER CO LTD
- Filing Date
- 2025-06-25
- Publication Date
- 2026-06-26
Smart Images

Figure CN224413756U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of turning tools, and in particular to a turning device for rotating equipment. Background Technology
[0002] In addition to routine inspections and lubrication, rotating equipment such as standby motors and pumps that are out of service must also undergo necessary manual rotation to promptly detect potential faults in internal and external moving parts that have been stationary for a long period of time, thus ensuring the long-term stable operation of the equipment.
[0003] Currently, when rotating equipment, the common practice is to use a combination of rods and buckles to create a rocker arm for rotating the coupling, or to use a crowbar. The drawbacks of using a rocker arm are that the buckle directly applies force to the coupling surface, making the inner surface of the coupling the point of force application, which easily leaves indentations and can easily damage the coupling. Using a crowbar usually requires repeated attempts to find the correct force point, resulting in high labor intensity, difficulty in controlling the rotation force, and the risk of slippage and personal injury. Furthermore, the limited space for rotation due to the equipment structure greatly hinders operation; hands may get caught in the crowbar, or it may be difficult to release it in time, causing serious personal injury. Additionally, existing tools have fixed angles and are compatible with fixed coupling sizes, limiting their applicability. Therefore, this invention proposes a rotating equipment rotation device to solve the problems existing in the prior art. Utility Model Content
[0004] To address the aforementioned problems, this utility model proposes a rotating equipment turning device. This device uses the coupling bolt as a fulcrum, which will not damage the coupling body. Furthermore, the contact between the two fulcrums is more reliable, making it less prone to loosening during operation and thus safer.
[0005] To achieve the purpose of this utility model, the utility model is implemented through the following technical solution: a rotating equipment turning device, including a handle, a fixed clamp plate and a movable clamp plate, the fixed clamp plate is connected to the upper end of the handle, the movable clamp plate is hinged to the rear side of the fixed clamp plate, and a worm gear is connected to the hinge shaft of the movable clamp plate. A first shaft seat is provided on the fixed clamp plate at the position below the worm gear, and a worm adapted to the worm gear is rotatably provided on the inner side of the first shaft seat.
[0006] The lower end of the handle is provided with a rotating unit, and the rotating unit rotates in conjunction with the worm gear.
[0007] A further improvement is that the rotating unit includes a second bearing and a knob, the second bearing being located at the lower end of the handle, and the knob being rotatably located inside the second bearing.
[0008] A further improvement is that: one end of the worm gear is connected to a first chain wheel, one end of the knob is connected to a second chain wheel, a chain is connected between the first chain wheel and the second chain wheel, and the chain passes through the handle.
[0009] A further improvement is that the upper end of the movable clamp is provided with a screw hole, and a lock nut bolt is installed in the internal thread of the screw hole.
[0010] A further improvement is that a pressure plate is provided on the inner arc surface of the movable clamping plate, and the pressure plate is a soft plate.
[0011] A further improvement is that the upper end of the fixing clamp is provided with a head, and the head is provided with a slot, and there are at least two sets of slots.
[0012] A further improvement is that the outer side of the handle is covered with an outer rubber sleeve.
[0013] A further improvement is that a fixing hole is provided on the fixing clamp at one side of the worm gear, and the fixing hole is used to install a screw, which is used to lock the worm gear.
[0014] The beneficial effects of this utility model are as follows:
[0015] 1. This utility model adopts a clamping method of fixed clamping plates and movable clamping plates. The locking nut bolt on the movable clamping plate is clamped onto one bolt of the coupling, and the slot on the end of the fixed clamping plate is inserted into another bolt at an angle on the coupling. The shaft can be rotated by turning the handle. Because it relies on the coupling bolt as the fulcrum, it will not damage the coupling body, and the contact between the two fulcrums is more reliable. It is not easy to loosen during operation, which is safer.
[0016] 2. This utility model is designed for couplings of different sizes. When it is necessary to adjust the angle of the fixed clamp and the movable clamp, simply turn the knob to drive the second chain wheel to rotate. The chain then drives the first chain wheel to rotate, causing the worm to rotate. The worm drives the worm wheel to rotate, so that the movable clamp changes its angle based on the rotation of the fixed clamp. The worm wheel and worm have self-locking characteristics, making it convenient and reliable to adjust at any time during use. It has a wide range of applications and is lightweight and flexible. Attached Figure Description
[0017] Figure 1 This is the front view of the present invention;
[0018] Figure 2 For the present utility model Figure 1 Schematic diagram of the structure at point A in the middle;
[0019] Figure 3 For the present utility model Figure 1 Schematic diagram of the structure at point B.
[0020] The components are: 1. Handle; 2. Fixed clamping plate; 3. Movable clamping plate; 4. Worm gear; 5. First shaft seat; 6. Worm; 7. First chain wheel; 8. Second shaft seat; 9. Knob; 10. Second chain wheel; 11. Chain; 12. Locking nut bolt; 13. Pressure plate; 14. End; 15. Slot; 16. Outer rubber sleeve; 17. Fixing hole. Detailed Implementation
[0021] To deepen the understanding of this utility model, the following detailed description will be provided in conjunction with embodiments. These embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model.
[0022] Example 1
[0023] according to Figure 1 , 2 As shown in Figure 3, this embodiment proposes a rotating equipment turning device, including a handle 1, a fixed clamp 2 and a movable clamp 3. The fixed clamp 2 is connected to the upper end of the handle 1, and the movable clamp 3 is hinged to the rear side of the fixed clamp 2. A worm gear 4 is connected to the hinge shaft of the movable clamp 3. A first bearing seat 5 is provided on the fixed clamp 2 at a position below the worm gear 4, and a worm 6 adapted to the worm gear 4 is rotatably provided on the inner side of the first bearing seat 5.
[0024] The lower end of the handle 1 is equipped with a rotating unit, which rotates in conjunction with the worm gear 6. In use, when adjusting the angles of the fixed clamp 2 and the movable clamp 3 for couplings of different sizes, simply turn the knob 9 to rotate the second chain wheel 10, which in turn rotates the first chain wheel 7 via the chain 11, causing the worm gear 6 to rotate. The worm gear 6 then rotates the worm wheel 4, allowing the movable clamp 3 to change its angle based on the rotation of the fixed clamp 2. The worm wheel 4 and worm gear 6 have self-locking characteristics, facilitating reliable adjustment at any time during use. This design offers wide applicability and is lightweight and flexible.
[0025] The rotating unit includes a second bearing seat 8 and a knob 9. The second bearing seat 8 is located at the lower end of the handle 1, and the knob is rotatably located inside the second bearing seat 8. One end of the worm gear 6 is connected to a first chain wheel 7, and one end of the knob 9 is connected to a second chain wheel 10. A chain 11 connects the first chain wheel 7 and the second chain wheel 10, and the chain 11 passes through the handle 1. In use, rotating the knob 9 drives the second chain wheel 10 to rotate, which in turn drives the first chain wheel 7 to rotate via the chain 11, causing the worm gear 6 to rotate. The worm gear 6 then drives the worm wheel 4 to rotate, causing the movable clamp 3 to change its angle based on the rotation of the fixed clamp 2. The worm wheel 4 and worm gear 6 have a self-locking characteristic, allowing for convenient and reliable adjustment during use.
[0026] The upper end of the movable clamping plate 3 is provided with a screw hole, and a lock nut bolt 12 is installed in the threaded part of the screw hole. A pressure plate 13 is provided on the inner arc surface of the movable clamping plate 3, and the pressure plate 13 is a soft plate. The upper end of the fixed clamping plate 2 is provided with an end head 14, and the end head 14 is provided with a slot 15, and there are two sets of slots 15. In use, the fixed clamping plate 2 is used in conjunction with the movable clamping plate 3 to clamp the lock nut bolt 12 on the movable clamping plate 3 onto one bolt of the coupling, and the slot 15 on the end head 14 of the fixed clamping plate 2 is inserted into the other bolt at the other angle on the coupling. Rotating the handle 1 allows for rotation. Because it relies on the coupling bolt as a fulcrum, it will not damage the coupling body, and the contact between the two fulcrums is more reliable. It is not easy to loosen during operation, making it safer. The lock nut bolt 12 is threaded, making it easy to replace, and the pressure plate 13 can increase friction and contact reliability.
[0027] Example 2
[0028] according to Figure 1 , 2 As shown in Figure 3, this embodiment proposes a rotating equipment turning device, including a handle 1, a fixed clamp 2 and a movable clamp 3. The fixed clamp 2 is connected to the upper end of the handle 1, and the movable clamp 3 is hinged to the rear side of the fixed clamp 2. A worm gear 4 is connected to the hinge shaft of the movable clamp 3. A first bearing seat 5 is provided on the fixed clamp 2 at a position below the worm gear 4, and a worm 6 adapted to the worm gear 4 is rotatably provided on the inner side of the first bearing seat 5.
[0029] The lower end of the handle 1 is equipped with a rotating unit, which rotates in conjunction with the worm gear 6. In use, when adjusting the angles of the fixed clamp 2 and the movable clamp 3 for couplings of different sizes, simply turn the knob 9 to rotate the second chain wheel 10, which in turn rotates the first chain wheel 7 via the chain 11, causing the worm gear 6 to rotate. The worm gear 6 then rotates the worm wheel 4, allowing the movable clamp 3 to change its angle based on the rotation of the fixed clamp 2. The worm wheel 4 and worm gear 6 have self-locking characteristics, facilitating reliable adjustment at any time during use. This design offers wide applicability and is lightweight and flexible.
[0030] The handle 1 is covered with an outer rubber sleeve 16. This makes it easy for the operator to hold and prevents it from slipping off.
[0031] A fixing hole 17 is provided on the fixing clamp 2 at one side of the worm gear 4, and the fixing hole 17 is used to install a screw, which is used to lock the worm gear 4. In use, when it is necessary to completely fix the worm gear 4 to lock the movable clamp 3, simply install the screw in the fixing hole 17, and lock the worm gear 4 by means of the screw.
[0032] The rotating device employs a clamping method using a fixed clamp 2 and a movable clamp 3. The locking nut 12 on the movable clamp 3 is engaged with one bolt on the coupling, while the slot 15 on the end 14 of the fixed clamp 2 is engaged with another bolt on the coupling at a different angle. Rotating the handle 1 allows for rotation. Because it relies on the coupling bolt as a fulcrum, it will not damage the coupling body, and the contact between the two fulcrums is more reliable, making it less prone to loosening during operation and thus safer. Furthermore, for couplings of different sizes, when adjusting the angle of the fixed clamp 2 and the movable clamp 3, simply turn the knob 9 to rotate the second chain wheel 10, which in turn rotates the chain 11, causing the first chain wheel 7 to rotate. This rotates the worm gear 6, which in turn rotates the worm wheel 4, allowing the movable clamp 3 to change angle based on the rotation of the fixed clamp 2. The worm wheel 4 and worm gear 6 have self-locking characteristics, facilitating reliable adjustment during use. It is widely applicable, lightweight, and flexible.
[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A rotating equipment turning device, comprising a handle (1), a fixed clamp (2), and a movable clamp (3), characterized in that: The fixed clamp (2) is connected to the upper end of the handle (1), the movable clamp (3) is hinged to the rear side of the fixed clamp (2), and a worm gear (4) is connected to the hinge shaft of the movable clamp (3). A first bearing seat (5) is provided on the fixed clamp (2) at the position below the worm gear (4), and a worm (6) adapted to the worm gear (4) is rotatably provided on the inner side of the first bearing seat (5). The lower end of the handle (1) is provided with a rotating unit, and the rotating unit rotates in conjunction with the worm (6).
2. The rotating equipment turning device according to claim 1, characterized in that: The rotating unit includes a second bearing (8) and a knob (9). The second bearing (8) is located at the lower end of the handle (1), and the knob is located on the inner side of the second bearing (8).
3. The rotating equipment turning device according to claim 2, characterized in that: One end of the worm gear (6) is connected to a first chain wheel (7), and one end of the knob (9) is connected to a second chain wheel (10). A chain (11) is connected between the first chain wheel (7) and the second chain wheel (10), and the chain (11) passes through the handle (1).
4. The rotating equipment turning gear device according to claim 1, characterized in that: The upper end of the movable clamp (3) is provided with a screw hole, and a lock nut bolt (12) is installed in the screw hole.
5. A rotating equipment turning gear device according to claim 1, characterized in that: The inner arc surface of the movable clamp (3) is provided with a pressure plate (13), and the pressure plate (13) is a soft plate.
6. The rotating equipment turning gear device according to claim 1, characterized in that: The upper end of the fixing clamp (2) is provided with a head (14), and the head (14) is provided with a slot (15), and the slot (15) is provided with at least two sets.
7. A rotating equipment turning gear device according to claim 1, characterized in that: The handle (1) is covered with an outer rubber sleeve (16).
8. A rotating equipment turning gear device according to claim 1, characterized in that: The fixing clamp (2) at one side of the worm gear (4) is provided with a fixing hole (17), and the fixing hole (17) is used to install a screw, which is used to lock the worm gear (4).