Rapid turning gear for pump set

Abstract

The invention discloses a rapid turning gear for a pump set, belongs to the technical field of turning gears, and solves the problems that an existing turning gear is inconvenient to disassemble and assemble and low in efficiency. The device specifically comprises a barring spindle head and a static cylinder body, the static cylinder is mounted at the end part of the motor static body; the barring shaft head is located in the static cylinder, and the static cylinder is connected with the motor main shaft. The end, away from the motor spindle, of the barring spindle head is detachably connected with a barring tool. The static cylinder comprises a cylinder body, and one end of the cylinder body is connected with a second flange; and the other end of the barrel body is movably connected with a cover plate assembly. According to the invention, after the cover plate assembly is closed, the whole barring shaft head is packaged in the motor static body, so that the barring shaft head can be well protected, and foreign matters are prevented from entering the rotating barring shaft head to cause operation risks; when the turning tool is used, turning can be achieved by directly installing the turning tool on the turning shaft head, the static cylinder does not need to be disassembled or installed, use is convenient, and working efficiency is high.

Description

Technical Field

[0001] The present invention relates to the technical field of cranking devices, in particular to a rapid cranking device for a pump group. Background Art

[0002] Pump cranking refers to the process of manually rotating the pump unit several times by manpower or a cranking device before starting the motor to check the equipment status, prevent failures and ensure safe startup.

[0003] Traditional pump unit cranking is primarily done manually, which is labor-intensive and inefficient. Sometimes, if the cranking fails, specialized equipment must be used. Therefore, some medium- to large-sized pump unit motors are also equipped with a cranking shaft head. Considering that this shaft head is a rotating component, a cranking cover is often installed to cover it. The cover is bolted to the motor and removed when in use. The cover is then reinstalled after the cranking is complete. This assembly method requires frequent assembly and disassembly in practice, making it inconvenient. Furthermore, because the cranking cover is installed with bolts, frequent and prolonged disassembly and installation can lead to bolt failure in motors subject to high vibration, such as fracturing pump motors. This frequent assembly and disassembly also results in poor installation reliability. Furthermore, existing cranking covers utilize conventional buckles and hinges. Due to the high vibration and rotational torque of the motor during operation, using conventional buckles and hinges for cranking presents construction risks.

[0004] Therefore, the present invention provides a novel quick-disassembly pump assembly rapid turning device. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides a pump group fast cranking device, which solves the problems of inconvenient assembly and disassembly and low efficiency of the existing cranking device.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is: A pump group fast cranking device includes a cranking shaft head and a stationary cylinder; the stationary cylinder is installed at the end of the stationary body of the motor; the cranking shaft head is located inside the stationary cylinder, and the stationary cylinder is connected to the motor main shaft; the end of the cranking shaft head away from the motor main shaft is detachably connected to a cranking tool.

[0007] In this solution, the turning shaft head is arranged inside the stationary cylinder, and the stationary cylinder protects the turning shaft head. When in use, the turning tool can be directly installed on the turning shaft head to turn the machine without disassembling or installing the stationary cylinder. It is easy to use and efficient.

[0008] Furthermore, the turning gear shaft head includes a shaft head body, one end of which is connected to a first flange, and the first flange is mounted on the end of the motor main shaft by bolts; the other end of the shaft head body is processed into a polygonal shaft; The turning tool includes a turning sleeve, which has a hole groove inside that matches the shape of the polygonal shaft. The turning sleeve is connected to the polygonal shaft through the hole groove; a turning rod is provided at the end of the turning sleeve away from the polygonal shaft, and a turning rope is wound around the turning rod.

[0009] In this solution, the shaft head body is connected to the motor main shaft through the first flange, and the rotation of the motor main shaft drives the shaft head body to rotate; the winch sleeve is directly sleeved on the polygonal shaft at the end of the shaft head body, which is easy to install; when working, the torque of the motor main shaft is transmitted to the winch sleeve, thereby driving the winch rod to rotate, and the winch rod drives the winch rope on it to wind a certain length, thereby realizing the winch operation.

[0010] Furthermore, the stationary cylinder includes a cylinder body, one end of the cylinder body is connected to a second flange, and the second flange is mounted on the bearing cover of the motor stationary body by bolts; the other end of the cylinder body is movably connected to a cover plate assembly.

[0011] In this solution, the cylinder body is installed on the bearing cover and fixed to the static body of the motor. After closing the cover assembly, the entire turning axle head is encapsulated inside the static body of the motor, which can provide good protection for the turning axle head and prevent foreign matter from entering the rotating turning axle head to cause operational risks.

[0012] Furthermore, the first flange is arranged inside the bearing cover, and the end of the shaft head body passes through the through hole in the center of the bearing cover and is connected to the first flange.

[0013] Furthermore, a seal is provided between the shaft head body and the bearing cover.

[0014] In this solution, the seal seals the bearing cover and the shaft head body to prevent foreign matter from entering the interior of the motor and causing damage to the motor.

[0015] Furthermore, the cover plate assembly includes a cover plate body, one end of the cover plate body is movably connected to the stationary cylinder through a hinge, and the other end of the cover plate body is fixed to the stationary cylinder through a quick-release assembly.

[0016] In this solution, when the turning tool is not working, it is removed from the shaft head body. At this time, the cover body can be fixed to the end of the stationary cylinder through the quick-release assembly, so that the cover body is in a fastened and closed state when the pump group motor is running as a whole, avoiding the loosening of the cover body due to motor vibration.

[0017] Furthermore, the quick release assembly includes a hinge seat, a rotating shaft is provided on the hinge seat, a bolt hole is opened in the middle of the rotating shaft, a quick release rod is threadedly connected to the threaded hole, and a buckle is connected to the end of the quick release rod.

[0018] In this solution, when using the quick-release assembly to fasten the cover body, first rotate the quick-release rod around the rotating shaft so that the buckle at the end of the quick-release rod rotates to one end close to the cover body; then rotate the quick-release rod so that it moves relative to the threaded hole, and finally the buckle at the end of the quick-release rod is tightly buckled on the cover body to fix it, with a good fixing effect.

[0019] Furthermore, the hinge adopts a 300° spring hinge.

[0020] In this solution, the design uses a 300° spring hinge. When the quick-release assembly is opened, the cover body can automatically spring to a position with an unfolded angle of 300° and be fixed, which is easy to use.

[0021] Furthermore, a through hole is radially opened at the end of the turning sleeve, and the turning rod is passed through the through hole.

[0022] Furthermore, the polygonal shaft adopts a hexagonal shaft structure, and the hole groove inside the turning sleeve is a hexagonal groove structure.

[0023] The beneficial effects of the present invention are: The pump group fast cranking device provided by the present invention mainly utilizes the power of the pump group motor for cranking. The motor is a variable frequency speed regulation asynchronous motor. The frequency converter is used to adjust the input power frequency and control the motor to run at a low speed. The cranking shaft head is fastened to the right end of the motor main shaft by a bolt. The cranking shaft head and the motor main shaft are located on the same shaft system and are used to transmit torque. A stationary cylinder is sleeved on the outer side of the shaft head body, and a cover assembly is installed on the end of the stationary cylinder. When the pump group is running as a whole, the cover assembly is in a fastened closed state to prevent foreign matter from entering the rotating cranking shaft head and causing operational risks. When using a cranking tool for cranking, the quick release rod is rotated to drive the buckle to release the fixing effect on the cover body. The cover body automatically opens under the action of the hinge, which is easy to use.

[0024] The quick-release assembly is designed so that when the cover body is in the open state, the quick-release rod is rotated so that the buckle is at the end away from the turning tool. The quick-release rod is then rotated relative to the threaded hole so that the threaded end of the quick-release rod is stuck with the outer wall of the stationary cylinder, leaving enough space for the turning tool. This can prevent the turning rope from getting entangled with the quick-release rod, buckle, etc., causing damage to the equipment and endangering the safety of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a structural schematic diagram of a pump group fast turning device assembled on a stationary motor body according to the present invention; Figure 2 This is a three-dimensional diagram of a pump group fast turning device of the present invention; Figure 3 This is a structural diagram of the pump group fast turning device cover assembly in the closed state in the present invention; Figure 4 It is a structural schematic diagram of the closed state of the cover assembly of the pump group rapid turning device in the present invention.

[0026] Reference numerals: 1. Turning axle head; 11. Axle head body; 12. First flange; 13. Polygonal axle; 2. Stationary cylinder; 21. Cylinder body; 22. Second flange; 23. Cover assembly; 231. Cover body; 232. Hinge; 233. Quick-release assembly; 234. Articulated seat; 235. Rotating shaft; 236. Quick-release lever; 237. Buckle; 3. Motor stationary body; 31. Bearing cap; 32. Seal; 4. Motor spindle; 5. Turning tool; 51. Turning sleeve; 52. Turning rope; 53. Turning rod; DETAILED DESCRIPTION The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Specific embodiments of the present invention are described below to facilitate understanding of the present invention by those skilled in the art. However, it should be understood that the present invention is not limited to the scope of the specific embodiments. For those skilled in the art, as long as various changes are within the spirit and scope of the present invention as defined and determined by the appended claims, these changes are obvious, and all inventions and creations utilizing the concepts of the present invention are protected.

[0027] Example 1 like Figure 1 and Figure 2 As shown, this embodiment provides a pump group fast cranking device, which does not require the device to be disassembled or installed during cranking, thereby solving the problem of inconvenient disassembly and assembly and low efficiency of existing cranking devices; it specifically includes: Turning shaft head 1, stationary cylinder 2 and turning tool 5; Among them, the stationary cylinder 2 is installed at the end of the stationary body 3 of the motor; the turning shaft head 1 is located inside the stationary cylinder 2, and the stationary cylinder 2 is connected to the motor main shaft 4; the turning shaft head 1 is detachably connected to the turning tool 5 at the end away from the motor main shaft 4; when in use, the turning tool 5 can be directly installed on the turning shaft head 1 to turn the motor, without the need to disassemble or install the stationary cylinder 2, which is easy to use and efficient.

[0028] The turning wheel axle head 1 includes a shaft head body 11 and a first flange 12. One end of the shaft head body 11 is connected to the first flange 12. The first flange 12 is installed on the end of the motor main shaft 4 by bolts. When the motor main shaft 4 rotates, it drives the shaft head body 11 to rotate; the other end of the shaft head body 11 is processed into a polygonal shaft 13.

[0029] The winching tool 5 comprises a winching sleeve 51, a winching rod 53, and a winching rope 52. The winching sleeve 51 has a slotted interior that matches the shape and structure of the polygonal shaft 13. The winching sleeve 51 is slotted onto the polygonal shaft 13 through the slot, making installation easy. A winching rod 53 is located at the end of the winching sleeve 51 facing away from the polygonal shaft 13, and a winching rope 52 is wound around the winching rod 53. During operation, the torque of the motor spindle 4 is transmitted to the winching sleeve 51, thereby rotating the winching rod 53. The winching rod 53 then winds the winching rope 52 to a predetermined length, completing the winching operation.

[0030] A through hole is radially formed at the end of the turning sleeve 51 , and the turning rod 53 is passed through the through hole.

[0031] As a preference of this embodiment, the polygonal shaft 13 adopts a hexagonal shaft structure, and the hole groove inside the turning sleeve 51 is a hexagonal groove structure.

[0032] The stationary cylinder 2 includes a cylinder body 21 , one end of which is connected to a second flange 22 , and the second flange 22 is mounted on a bearing cover 31 of the motor stationary body 3 by means of bolts.

[0033] The first flange 12 is disposed within the bearing cap 31. The end of the shaft head body 11 extends through a central through-hole in the bearing cap 31 and connects to the first flange 12. A seal 32 is disposed between the shaft head body 11 and the bearing cap 31. The seal 32 seals the bearing cap 31 and the shaft head body 11, preventing foreign matter from entering and damaging the motor.

[0034] The working principle of this embodiment is as follows: The pump assembly rapid cranking device provided in this embodiment primarily utilizes the power of the pump assembly motor for cranking. This motor is a variable-frequency, speed-regulating asynchronous motor. A frequency converter is used to adjust the input power frequency, controlling the motor to operate at low speed. A cranking spindle head 1 is bolted to the right end of the motor's main shaft 4. Both motor spindles are located on the same shaft system, transmitting torque.

[0035] Example 2 This embodiment is based on the embodiment 1, and a cover plate assembly 23 is provided at the end of the stationary cylinder 2 to solve the problem in the embodiment 1 that foreign matter is easily driven into the stationary cylinder 2 when the pump group is running as a whole. The specific contents are as follows: The end of the cylinder body 21 away from the second flange 22 is movably connected to a cover assembly 23. After closing the cover assembly 23, the entire turning spindle head 1 is encapsulated inside the motor static body 3, which can provide good protection for the turning spindle head 1 and prevent foreign matter from entering the rotating turning spindle head 1 and causing operational risks.

[0036] The cover assembly 23 includes a cover body 231, a hinge 232, and a quick-release assembly 233. One end of the cover body 231 is movably connected to the stationary cylinder 2 via the hinge 232, and the other end of the cover body 231 is fixed to the stationary cylinder 2 via the quick-release assembly 233. When the turning tool 5 is not in operation, it is removed from the shaft head body 11. At this time, the cover body 231 can be fixed to the end of the stationary cylinder 2 via the quick-release assembly 233, so that the cover body 231 is in a fastened closed state when the pump unit motor is in operation. Figure 3 and Figure 4 As shown, loosening of the cover body 231 due to motor vibration is avoided.

[0037] The hinge 232 is a 300° spring hinge. When the quick release assembly 233 is opened, the cover body 231 can automatically spring to a position with an expansion angle of 300° and be fixed. Figure 1 shown.

[0038] The quick-release assembly 233 includes a hinged seat 234, a rotating shaft 235, a quick-release rod 236 and a buckle 237; a rotating shaft 235 is provided on the hinged seat 234, a bolt hole is opened in the middle of the rotating shaft 235, a quick-release rod 236 is threadedly connected to the threaded hole, and a buckle 237 is connected to the end of the quick-release rod 236.

[0039] The working principle of this embodiment is: When the pump group is operating normally as a whole and the quick-release assembly 233 needs to be used to fasten the cover body 231, first rotate the quick-release rod 236 around the rotating shaft 235 to rotate the buckle 237 at the end of the quick-release rod 236 to one end close to the cover body 231; then rotate the quick-release rod 236 to move relative to the threaded hole, and finally make the buckle 237 at the end of the quick-release rod 236 tightly buckled on the cover body 231, fixing it with a good fixing effect; at the same time, it can prevent foreign matter from entering the rotating turntable shaft head 1 to cause operation risks.

[0040] When the turning tool 5 is used for turning, and the cover body 231 needs to be opened using the quick release assembly 233, the quick release rod 236 is rotated to drive the buckle 237 to release the fixing effect on the cover body 231, and the cover body 231 is automatically opened under the action of the hinge 232; then the quick release rod 236 is rotated to make the buckle 237 at the end away from the turning tool 5, and then the quick release rod 236 is rotated relative to the threaded hole so that the threaded end of the quick release rod 236 is stuck with the outer wall of the stationary cylinder 2, as shown in FIG. Figure 2 As shown, sufficient space is left for the winch to prevent the winch rope 52 from getting tangled with the quick-release rod 236, the buckle 237, etc., causing damage to the equipment and endangering the safety of the operators.

[0041] Those skilled in the art will appreciate that the embodiments herein are intended to help readers understand the principles of the present invention, and it should be understood that the scope of protection of the present invention is not limited to such specific descriptions and embodiments. Those skilled in the art can make various other specific variations and combinations based on the technical teachings disclosed in the present invention without departing from the essence of the present invention, and such variations and combinations are still within the scope of protection of the invention.

Claims

1. A pump group fast turning device, characterized by: The invention comprises a turning spindle head (1) and a stationary cylinder (2); the stationary cylinder (2) is mounted on the end of a stationary body (3) of a motor; the turning spindle head (1) is located inside the stationary cylinder (2), and the stationary cylinder (2) is connected to a motor main shaft (4); a turning tool (5) is detachably connected to one end of the turning spindle head (1) away from the motor main shaft (4).

2. The pump group fast turning device according to claim 1, characterized in that: The turning wheel shaft head (1) comprises a shaft head body (11), one end of the shaft head body (11) is connected to a first flange (12), and the first flange (12) is mounted on the end of the motor main shaft (4) by means of bolts; the other end of the shaft head body (11) is processed into a polygonal shaft (13); The winch tool (5) includes a winch sleeve (51), wherein a hole groove matching the external structure of the polygonal shaft (13) is provided inside the winch sleeve (51), and the winch sleeve (51) is sleeved on the polygonal shaft (13) through the hole groove; a winch rod (53) is provided at one end of the winch sleeve (51) away from the polygonal shaft (13), and a winch rope (52) is wound around the winch rod (53).

3. The pump group fast turning device according to claim 2, characterized in that: The stationary cylinder (2) comprises a cylinder body (21), one end of the cylinder body (21) is connected to a second flange (22), and the second flange (22) is mounted on a bearing cover (31) of the motor stationary body (3) by means of bolts; the other end of the cylinder body (21) is movably connected to a cover plate assembly (23).

4. The pump group fast turning device according to claim 3 is characterized in that: The first flange (12) is arranged inside the bearing cover (31), and the end of the shaft head body (11) passes through the through hole in the center of the bearing cover (31) and is connected to the first flange (12).

5. The pump group fast turning device according to claim 4 is characterized in that: A sealing member (32) is provided between the shaft head body (11) and the bearing cover (31).

6. The pump group fast turning device according to claim 3, characterized in that: The cover plate assembly (23) comprises a cover plate body (231), one end of the cover plate body (231) is movably connected to the stationary cylinder (2) via a hinge (232), and the other end of the cover plate body (231) is fixed to the stationary cylinder (2) via a quick-release assembly (233).

7. The pump group fast turning device according to claim 6, characterized in that: The quick-release assembly (233) comprises an articulated seat (234), a rotating shaft (235) is provided on the articulated seat (234), a bolt hole is provided in the middle of the rotating shaft (235), a quick-release rod (236) is threadedly connected to the threaded hole, and a buckle (237) is connected to the end of the quick-release rod (236).

8. The pump group fast turning device according to claim 6, characterized in that: The hinge (232) adopts a 300° spring hinge.

9. The pump assembly rapid turning device according to any one of claims 2 to 8, characterized in that: A through hole is radially opened at the end of the turning sleeve (51), and the turning rod (53) is inserted into the through hole.

10. The pump group fast turning device according to any one of claims 2 to 8, characterized in that: The polygonal shaft (13) adopts a hexagonal shaft structure, and the hole groove inside the turning sleeve (51) is a hexagonal groove structure.

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