Adjustable rotating speed type plunger pump based on integrated quick response

Abstract

The utility model discloses an adjustable rotating speed type plunger pump based on integrated quick response, which comprises an emulsion pump, a transmission shaft for driving the emulsion pump to work and an input shaft used for being linked with a motor, a gear A and a gear B are arranged on the transmission shaft at an interval, and the gear A and the gear B idle on the transmission shaft. A gear C synchronously rotating with the input shaft is arranged at the position, corresponding to the gear A, of the input shaft, the gear C is meshed with the gear A, and the number of teeth of the gear C is larger than that of the gear A. A gear D synchronously rotating with the input shaft is arranged at the position, corresponding to the gear B, of the input shaft, the gear D is meshed with the gear B, and the number of teeth of the gear D is smaller than that of the gear B. The synchronizer is used for driving the gear A or the gear B to be linked with the transmission shaft, two sets of transmission gears with different tooth numbers are arranged, the frequency conversion effect is achieved through left-right sliding of the synchronizer, the cost is relatively low, and the device can be prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of emulsion pump stations, in particular to an integrated fast-response adjustable speed plunger pump. Background Art

[0002] When mining coal in a mine, it is necessary to reliably support and control the roof of the working face, isolate the goaf, and prevent gangue from entering the mining face. Emulsion pumps and hydraulic supports came into being under this demand. Emulsion pumps provide the power required by hydraulic supports to ensure constant pressure of the emulsion. Existing emulsion pumps still directly use power frequency to start and run. Power frequency starting is not only easy to damage the equipment, but also has extremely high energy consumption. Using a variable frequency motor can achieve soft start and stop of the emulsion pump and ensure stable operation of the system, but variable frequency motors or inverters are expensive. Summary of the invention

[0003] Purpose of the utility model: In order to overcome the defects of the prior art, the utility model provides an integrated quick-response adjustable speed plunger pump, equipped with two sets of transmission gears with different numbers of teeth, and realizes the frequency conversion effect through the left and right sliding of the synchronizer, which has relatively low cost and can prevent equipment damage.

[0004] The utility model discloses an integrated quick-response adjustable speed plunger pump, comprising an emulsion pump, a transmission shaft for driving the emulsion pump, and an input shaft for linkage with a motor, characterized in that: a gear A and a gear B are arranged at intervals on the transmission shaft, the gear A and the gear B are idling on the transmission shaft, a gear C is arranged on the input shaft corresponding to the position of the gear A and rotates synchronously with the input shaft, the gear C is meshed with the gear A and the number of teeth of the gear C is more than that of the gear A, a gear D is arranged on the input shaft corresponding to the position of the gear B and rotates synchronously with the input shaft, the gear D is meshed with the gear B and the number of teeth of the gear D is less than that of the gear B, and a synchronizer is also included for driving the gear A or the gear B to be linked with the transmission shaft.

[0005] The utility model is further configured as follows: the synchronizer is arranged between gear A and gear B, the synchronizer is arranged on the transmission shaft for axial sliding and circumferential synchronous rotation, and a plug-in block A is provided on the side of the synchronizer facing gear A, and a slot A matched with the plug-in block A is provided on the gear A; the synchronizer is arranged on the side of the synchronizer facing gear B, and a slot B matched with the plug-in block B is provided on the gear B, and a driving mechanism for driving the synchronizer to slip is also included.

[0006] The utility model is further configured as follows: the driving mechanism includes a lever hingedly arranged on the emulsion pump, the lever includes a driving end extending to the outside, a hinged end hingedly arranged on the emulsion pump, and a movable end driving the synchronizer to slide, and the synchronizer is rotatably arranged on the movable end via a bearing.

[0007] The utility model is further configured as follows: the driving mechanism is an electromagnet, the synchronizer is made of a magnetically absorbable material, and two groups of electromagnets are provided, one group is provided on gear A, and the other group is provided on gear B.

[0008] Further configuration of the utility model: the synchronizer is provided with two groups and the synchronizer is an electromagnetic clutch disk, one group is arranged on gear A, and the other group is arranged on gear B. The electromagnetic clutch disk includes a mounting disk, a coil and a clutch disk. The clutch disk is fixed on the transmission shaft. The mounting disk is provided with a mounting cavity. The coil is arranged on the emulsion pump and is partially located in the mounting cavity. The mounting disk is arranged on the corresponding gear A and gear B.

[0009] The beneficial effects of the utility model are as follows: since gear C is meshed with gear A and the number of teeth of gear C is greater than that of gear A, the rotation speed is increased; since gear D is meshed with gear B and the number of teeth of gear D is less than that of gear B, the rotation speed is reduced; when high-speed operation is required, the synchronizer is linked with gear A, at which time gear B is idle, and gear A drives the transmission shaft to rotate; when low-speed operation is required, the synchronizer is linked with gear B, at which time gear A is idle, and gear B drives the transmission shaft to rotate; there is no need to equip a variable-frequency motor and a frequency converter, and the variation range of the torque and rotation speed of the drive wheel can be expanded, and the cost is relatively low. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the overall structure of Example 1;

[0011] Figure 2 This is a simplified structural diagram of Example 1;

[0012] Figure 3 for Figure 1 Enlarged view of part a;

[0013] Figure 4 This is a schematic diagram of the structure of the electromagnetic clutch disc in Example 2;

[0014] Figure 5 for Figure 4 Section view. DETAILED DESCRIPTION

[0015] The following is a detailed description of the specific implementation of the utility model in conjunction with the accompanying drawings:

[0016] In the description of the present invention, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "back", "inside", "outside", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention. Example

[0017] The utility model discloses an integrated quick-response adjustable speed plunger pump, comprising an emulsion pump 1, a transmission shaft 2 for driving the emulsion pump 1 to work, and an input shaft 3 for linkage with a motor. In an implementation case of the utility model, a gear A4 and a gear B5 are arranged on the transmission shaft 2 at intervals, and the gears A4 and B5 are idle on the transmission shaft 2. A gear C6 is arranged on the input shaft 3 at a position corresponding to the gear A4 and rotating synchronously with the input shaft 3. The gear C6 is meshed with the gear A4 and the number of teeth of the gear C6 is greater than that of the gear A4. A gear D7 is arranged on the input shaft 3 at a position corresponding to the gear B5 and rotating synchronously with the input shaft. The gear D7 is meshed with the gear B5 and the number of teeth of the gear D7 is less than that of the gear B5. A synchronizer 8 is also included for driving the gear A4 or the gear B5 to be linked with the transmission shaft 2.

[0018] By adopting the above technical solution, since gear C6 is meshed with gear A4 and the number of teeth of gear C6 is greater than that of gear A4, the rotation speed is increased; since gear D7 is meshed with gear B5 and the number of teeth of gear D7 is less than that of gear B5, the rotation speed is reduced. When high-speed operation is required, the synchronizer 8 works to link gear A4 with the transmission shaft 2. At this time, gear B5 is idle and gear A4 drives the transmission shaft 2 to rotate. When low-speed operation is required, the synchronizer 8 works to link gear B with the transmission shaft 2. At this time, gear A4 is idle and gear B5 drives the transmission shaft 2 to rotate. There is no need to be equipped with a variable frequency motor and a frequency converter, and the variation range of the torque and rotation speed of the drive wheel can be expanded, and the cost is relatively low.

[0019] The synchronizer 8 is arranged between the gear A4 and the gear B5. The synchronizer 8 is arranged on the transmission shaft 2 for axial sliding and circumferential synchronous rotation. The synchronizer 8 is provided with an insert block A9 on the side facing the gear A4. The gear A4 is provided with a slot A10 matched with the insert block A9. The synchronizer 8 is provided with an insert block B11 on the side facing the gear B5. The gear B5 is provided with a slot B12 matched with the insert block B11. The synchronizer 8 also includes a driving mechanism 13 for driving the synchronizer 8 to slide. The inner ring of the synchronizer 8 adopts a spline design to match the transmission shaft 2. The synchronizer 8 is connected to the driving shaft 2 so that the synchronizer 8 can move left and right on the transmission shaft 2 but rotate synchronously with the transmission shaft 2. When the driving mechanism 13 drives the synchronizer 8 to slide toward the gear A4, the plug A9 can be moved to be inserted in the slot A10, and the transmission shaft 2 is driven to rotate through the gear A4 to achieve the effect of speeding up. When the driving mechanism drives the synchronizer 8 to slide toward the gear B, the plug A9 disengages from the slot A10, so that the plug B11 slides to be inserted in the slot B12, so that the gear B5 drives the transmission shaft 2 to rotate.

[0020] The driving mechanism 13 includes a lever hingedly arranged on the emulsion pump 1, the lever includes a driving end extending to the outside, a hinged end hingedly arranged on the emulsion pump 1, and a movable end driving the synchronizer 8 to slide. The synchronizer 8 is rotatably arranged on the movable end via a bearing and is driven by a lever, making it more convenient and labor-saving when adjusting.

[0021] The driving mechanism 13 is an electromagnet (the electromagnet is not shown in the figure, and the electromagnet is common knowledge, so it will not be introduced in detail here). The synchronizer 8 is made of magnetically attractive material, and there are two groups of electromagnets, one of which is arranged on the gear A4, and the other is arranged on the gear B5. The synchronizer 8 can be driven to slide axially by magnetic attraction to achieve the linkage effect, further improving the convenience, and the control is carried out by electrical signals, which is more convenient, and can also be used in conjunction with a pressure sensor to make it more intelligent. Example

[0022] The utility model discloses an integrated quick-response adjustable speed plunger pump, comprising an emulsion pump 1, a transmission shaft 2 for driving the emulsion pump 1 to work, and an input shaft 3 for linkage with a motor. In an implementation case of the utility model, a gear A4 and a gear B5 are arranged on the transmission shaft 2 at intervals, and the gears A4 and B5 are idle on the transmission shaft 2. A gear C6 is arranged on the input shaft 3 at a position corresponding to the gear A4 and rotating synchronously with the input shaft 3. The gear C6 is meshed with the gear A4 and the number of teeth of the gear C6 is greater than that of the gear A4. A gear D7 is arranged on the input shaft 3 at a position corresponding to the gear B5 and rotating synchronously with the input shaft. The gear D7 is meshed with the gear B5 and the number of teeth of the gear D7 is less than that of the gear B5. A synchronizer is also included for driving the gear A4 or the gear B5 to be linked with the transmission shaft 2.

[0023] By adopting the above technical solution, since gear C6 is meshed with gear A4 and the number of teeth of gear C6 is greater than that of gear A4, the rotation speed is increased; since gear D7 is meshed with gear B5 and the number of teeth of gear D7 is less than that of gear B5, the rotation speed is reduced. When high-speed operation is required, the synchronizer works to link gear A4 with the transmission shaft 2, at which time gear B5 is idle, and gear A4 drives the transmission shaft 2 to rotate; when low-speed operation is required, the synchronizer works to link gear B with the transmission shaft 2, at which time gear A4 is idle, and gear B5 drives the transmission shaft 2 to rotate. There is no need to equip a variable-frequency motor and a frequency converter, and the variation range of the torque and rotation speed of the drive wheel can be expanded, and the cost is relatively low.

[0024] The synchronizer is provided with two groups and the synchronizer is an electromagnetic clutch disk 14, one group of which is arranged on the gear A4, and the other group is arranged on the gear B5. The electromagnetic clutch disk 14 includes a mounting disk 141 (of course, the mounting disk 141 is most preferably a part of the gear A or gear B body), a coil 142 and a clutch disk 143. The clutch disk 143 is fixed on the transmission shaft 2. The mounting disk 141 is provided with a mounting cavity 144. The coil 142 is arranged on the emulsion pump 1 and is partially located in the mounting cavity 144. The mounting disk 141 is arranged on the corresponding gear A4 and gear B5. When the coil 142 at the gear A4 is energized, it can generate magnetism, so that the mounting disk 141 adsorbs the clutch disk 143. At this time, the gear A4 can drive the transmission shaft 2 to rotate, and the gear B5 is idling. When the coil 142 at the gear B5 is energized, the gear B5 drives the transmission shaft 2 to rotate, and the gear A4 is idling at this time, which is more convenient to control.

Claims

1. An integrated fast-response adjustable speed plunger pump, comprising an emulsion pump, a transmission shaft for driving the emulsion pump, and an input shaft for linkage with a motor, characterized in that: Gear A and gear B are arranged at intervals on the transmission shaft, and gear A and gear B are idling on the transmission shaft. A gear C is arranged on the input shaft at a position corresponding to gear A and rotates synchronously with the input shaft. The gear C is meshed with gear A and has more teeth than gear A. A gear D is arranged on the input shaft at a position corresponding to gear B and rotates synchronously with the input shaft. The gear D is meshed with gear B and has less teeth than gear B. A synchronizer is also included for driving gear A or gear B to be linked with the transmission shaft.

2. The integrated fast-response adjustable speed plunger pump according to claim 1, characterized in that: The synchronizer is arranged between gear A and gear B, and is arranged on the transmission shaft for axial sliding and circumferential synchronous rotation. The synchronizer is provided with an insert block A on the side facing gear A, and a slot A matched with the insert block A is provided on the gear A. The synchronizer is provided with an insert block B on the side facing gear B, and a slot B matched with the insert block B is provided on the gear B. It also includes a driving mechanism for driving the synchronizer to slip.

3. The integrated fast-response adjustable speed plunger pump according to claim 2, characterized in that: The driving mechanism comprises a lever hingedly arranged on the emulsion pump, the lever comprises a driving end extending to the outside, a hinged end hingedly arranged on the emulsion pump and a movable end driving a synchronizer to slide, and the synchronizer is rotatably arranged on the movable end via a bearing.

4. The integrated fast-response adjustable speed plunger pump according to claim 2, characterized in that: The driving mechanism is an electromagnet, and the synchronizer is made of a magnetically absorbable material. Two groups of electromagnets are provided, one group is provided on gear A, and the other group is provided on gear B.

5. The integrated fast-response adjustable speed plunger pump according to claim 1, characterized in that: The synchronizer is provided with two groups and the synchronizer is an electromagnetic clutch disk, one group is arranged on gear A, and the other group is arranged on gear B. The electromagnetic clutch disk includes a mounting disk, a coil and a clutch disk. The clutch disk is fixed on the transmission shaft. The mounting disk is provided with a mounting cavity. The coil is arranged on the emulsion pump and is partially located in the mounting cavity. The mounting disk is arranged on the corresponding gear A and gear B.

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