Plunger pump structure of potash fertilizer bucket wheel machine

Abstract

The utility model relates to the technical field of bucket wheel machines, in particular to a plunger pump structure of a potash fertilizer bucket wheel machine, which comprises a plunger pump body. The electric telescopic rod works in the forward direction, the extending end drives the plunger to move leftwards, hydraulic oil is pumped into the plunger pump body through the one-way oil inlet pipe, in the oil pumping process, the plunger drives the connecting rod to move leftwards, the connecting rod extrudes the rectangular plate, the sliding rod slides out leftwards, and the spring is extruded; the left end of a sliding rod extrudes the top of a movable plate, the bottom end of the movable plate moves rightwards and extrudes the opening and closing position of a pressure relief valve, the pressure relief valve sprays high-pressure gas in a high-pressure gas cylinder into a one-way oil outlet pipe through a conveying pipe, and impurities at the top of a filter screen are blown away; the impurities fall into the collecting bag through the discharge pipe to be collected, so that the filter screen at the oil outlet pipeline is convenient to clean, the problem that the impurities accumulated on the filter screen for a long time block the pipeline is avoided, and the accuracy of the oil pumping amount is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bucket wheel machines, in particular to a plunger pump structure of a potash fertilizer bucket wheel machine. Background Art

[0002] Potash fertilizer, full name potassium fertilizer. Potassium fertilizer is a fertilizer with potassium as the main nutrient. After the production of potash fertilizer is completed, bucket wheel machine is needed for material transportation. Bucket wheel machine refers to a kind of high-efficiency loading and unloading machinery used for large dry bulk cargo yards, which can both stack and retrieve materials and continuously transport materials. It is composed of a belt conveyor arm that can pitch and swing horizontally, and a bucket wheel at the front end, a frame, and a running mechanism. The belt can run in both directions. When retrieving materials, the bucket wheel takes the materials and sends them out through the conveyor arm. When stacking materials, the goods transported by the main conveyor are thrown into the yard through the conveyor arm.

[0003] The lifting of the bucket wheel excavator is controlled by a hydraulic mechanism. Usually, a plunger pump is used to deliver hydraulic oil to the inside of the cylinder to achieve the lifting effect. After long-term use, impurities are easily introduced into the oil port of the plunger pump and then directly pumped into the hydraulic system, which can easily cause damage to the hydraulic system. Generally, a filter is set in the oil outlet pipeline to filter out impurities.

[0004] However, some existing bucket wheel excavator plunger pumps are not convenient for cleaning the filter screen at the oil outlet pipeline. Impurities accumulated on the filter screen for a long time can easily clog the pipeline and affect the oil pumping volume. Therefore, we propose a plunger pump structure for a potash fertilizer bucket wheel excavator to solve the above problem. Utility Model Content

[0005] The utility model aims to provide a plunger pump structure for a potash fertilizer bucket wheel machine to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a plunger pump structure of a potash bucket wheel excavator, comprising a plunger pump body, an electric telescopic rod fixedly connected to the left inner wall of the plunger pump body, a plunger fixedly connected to the protruding end of the electric telescopic rod, the plunger slidably connected to the inside of the plunger pump body, a one-way oil inlet pipe connected to the top of the plunger pump body, a one-way oil outlet pipe fixedly connected to the bottom of the plunger pump body, a filter fixedly connected to the inside of the one-way oil outlet pipe, a high-pressure gas cylinder fixedly connected to the bottom of the plunger pump body, a pressure relief valve fixedly connected to the left side of the high-pressure gas cylinder, and a delivery pipe connected between the pressure relief valve and the one-way oil outlet pipe.

[0007] Further preferably, a slide rod is slidably connected to the left inner wall of the plunger pump body, and a rectangular plate is fixedly connected to the right end of the slide rod.

[0008] Further preferably, a spring is fixedly connected between the rectangular plate and the plunger pump body, and the spring is movably sleeved on the outside of the sliding rod.

[0009] Further preferably, a support rod is fixedly connected to the left side of the plunger pump body, and the left end of the support rod is rotatably connected to a movable plate via a hinge.

[0010] Further preferably, a pull rope is fixedly connected between the slide rod and the movable plate, and the right side of the bottom of the movable plate is in movably contact with the switch of the pressure relief valve.

[0011] Further preferably, a connecting rod is fixedly connected to the left side of the plunger.

[0012] Further preferably, the right side of the one-way oil outlet pipe is connected to a discharge pipe, the outer side of the discharge pipe is threadedly connected to a round pipe, and the right end of the round pipe is connected to and fixed with a collecting bag.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the electric telescopic rod of the utility model works in the forward direction, and the extended end drives the plunger to move to the left to pump the hydraulic oil into the interior of the plunger pump body through the one-way oil inlet pipe. In the process of pumping oil, the plunger drives the connecting rod to move to the left, the connecting rod squeezes the rectangular plate, the sliding rod slides out to the left, the spring is squeezed, and the left end of the sliding rod squeezes the top of the movable plate. The movable plate and the support rod are rotatably connected by a hinge, so that the bottom end of the movable plate moves to the right and squeezes the switch of the pressure relief valve, and the pressure relief valve releases the high pressure in the high-pressure gas cylinder. The gas is ejected into the one-way oil outlet pipe through the delivery pipe, and the impurities on the top of the filter are blown away. The impurities fall into the collection bag through the discharge pipe for collection. When the electric telescopic rod works in the reverse direction, the plunger moves to the right, the connecting rod no longer squeezes the rectangular plate, the spring drives the slide bar to reset, and the slide bar drives the top of the movable plate to move to the right and reset through the pull rope. The pressure relief valve is closed, and the hydraulic oil is pumped out through the one-way oil outlet pipe, so as to facilitate the cleaning of the filter at the oil outlet pipeline, avoid the problem of long-term accumulation of impurities on the filter net clogging the pipeline, and improve the accuracy of the oil pumping amount. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main plane structure of the utility model;

[0015] Figure 2 for Figure 1 A schematic diagram of the enlarged three-dimensional structure of the middle A area;

[0016] Figure 3 for Figure 1 Schematic diagram of the enlarged three-dimensional structure of area B in the middle.

[0017] In the figure: 1. plunger pump body; 2. electric telescopic rod; 3. plunger; 4. one-way oil inlet pipe; 5. one-way oil outlet pipe; 6. filter screen; 7. discharge pipe; 8. round pipe; 9. collecting bag; 10. pressure relief valve; 11. delivery pipe; 12. high-pressure gas cylinder; 13. connecting rod; 14. sliding rod; 15. rectangular plate; 16. spring; 17. support rod; 18. movable plate; 19. pull rope. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Example

[0020] See also Figure 1-3The utility model provides a technical solution: a plunger pump structure of a potash bucket wheel excavator, comprising a plunger pump body 1, an electric telescopic rod 2 is fixedly connected to the left inner wall of the plunger pump body 1, a plunger 3 is fixedly connected to the protruding end of the electric telescopic rod 2, the plunger 3 is slidably connected to the inside of the plunger pump body 1, a one-way oil inlet pipe 4 is connected to the top of the plunger pump body 1, a one-way oil outlet pipe 5 is fixedly connected to the bottom of the plunger pump body 1, a filter screen 6 is fixedly connected to the inside of the one-way oil outlet pipe 5, a high-pressure gas cylinder 12 is fixedly connected to the bottom of the plunger pump body 1, a pressure relief valve 10 is fixedly connected to the left side of the high-pressure gas cylinder 12, a delivery pipe 11 is connected between the pressure relief valve 10 and the one-way oil outlet pipe 5, the electric telescopic rod 2 works in the forward direction, and the protruding end drives the plunger 3 to move leftward to pump hydraulic oil into the inside of the plunger pump body 1 through the one-way oil inlet pipe 4, and in the process of pumping oil, the plunger 3 drives the connecting rod 13 to move leftward, the connecting rod 13 squeezes the rectangular plate 15, and the sliding rod 14 moves The left slide bar 14 slides out, the spring 16 is squeezed, and the left end of the slide bar 14 squeezes the top of the movable plate 18. The movable plate 18 is rotatably connected to the support rod 17 by a hinge, so that the bottom end of the movable plate 18 moves to the right and squeezes the switch of the pressure relief valve 10. The pressure relief valve 10 sprays the high-pressure gas in the high-pressure gas cylinder 12 into the one-way oil outlet pipe 5 through the delivery pipe 11, and blows away the impurities on the top of the filter screen 6. The impurities fall into the collection bag 9 through the discharge pipe 7 for collection. When the electric telescopic rod 2 works in the reverse direction, the plunger 3 moves to the right, and the connecting rod 13 no longer squeezes the rectangular plate 15. The spring 16 drives the slide bar 14 to reset. The slide bar 14 drives the top of the movable plate 18 to move to the right and reset through the pull rope 19. The pressure relief valve 10 is closed, and the hydraulic oil is pumped out through the one-way oil outlet pipe 5, which is convenient for cleaning the filter screen at the oil outlet pipeline, avoiding the problem of impurities accumulated on the filter screen for a long time clogging the pipeline, and improving the accuracy of the pumping oil amount.

[0021] In this embodiment, specifically: a slide bar 14 is slidably connected to the inner wall of the left side of the plunger pump body 1, and a rectangular plate 15 is fixedly connected to the right end of the slide bar 14, and the setting of the slide bar 14 plays a sliding effect;

[0022] In this embodiment, specifically: a spring 16 is fixedly connected between the rectangular plate 15 and the plunger pump body 1, and the spring 16 is movably sleeved on the outer side of the slide rod 14, and the setting of the spring 16 plays a resetting effect;

[0023] In this embodiment, specifically: a support rod 17 is fixedly connected to the left side of the plunger pump body 1, and the left end of the support rod 17 is rotatably connected to a movable plate 18 through a hinge, and the setting of the support rod 17 plays a supporting effect;

[0024] In this embodiment, specifically: a pull rope 19 is fixedly connected between the slide bar 14 and the movable plate 18, and the bottom right side of the movable plate 18 is in active contact with the switch of the pressure relief valve 10, and the setting of the pull rope 19 plays a pulling effect;

[0025] In this embodiment, specifically: the left side of the plunger 3 is fixedly connected with a connecting rod 13, and the setting of the connecting rod 13 has the effect of squeezing the rectangular plate 15;

[0026] In this embodiment, specifically: the right side of the one-way oil outlet pipe 5 is connected to a discharge pipe 7, the outer side of the discharge pipe 7 is threadedly connected to a round pipe 8, the right end of the round pipe 8 is connected to and fixed with a collecting bag 9, and the setting of the collecting bag 9 achieves a collecting effect.

[0027] The utility model is at work: when in use, the electric telescopic rod 2 works forward, and the extended end drives the plunger 3 to move to the left to pump the hydraulic oil into the interior of the plunger pump body 1 through the one-way oil inlet pipe 4. In the process of pumping oil, the plunger 3 drives the connecting rod 13 to move to the left, and the connecting rod 13 squeezes the rectangular plate 15, and the sliding rod 14 slides out to the left, the spring 16 is squeezed, and the left end of the sliding rod 14 squeezes the top of the movable plate 18, and the movable plate 18 is rotatably connected to the support rod 17 through a hinge, so that the bottom end of the movable plate 18 moves to the right and squeezes the switch of the pressure relief valve 10, and the pressure relief valve 10 sprays the high-pressure gas in the high-pressure gas cylinder 12 through the delivery pipe 11 to The one-way oil outlet pipe 5 is used to pump out the impurities on the top of the filter screen 6, and the impurities fall into the collecting bag 9 through the discharge pipe 7 for collection. When the electric telescopic rod 2 works in the reverse direction, the plunger 3 moves to the right, and the connecting rod 13 no longer squeezes the rectangular plate 15. The spring 16 drives the slide bar 14 to reset, and the slide bar 14 drives the top of the movable plate 18 to move to the right and reset through the pull rope 19. The pressure relief valve 10 is closed, and the hydraulic oil is pumped out through the one-way oil outlet pipe 5, thereby forming a plunger pump structure of a potash bucket wheel excavator, which is convenient for cleaning the filter screen at the oil outlet pipeline, avoiding the problem of impurities accumulated on the filter screen for a long time clogging the pipeline, and improving the accuracy of the oil pumping amount.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plunger pump structure of a potash fertilizer bucket wheel machine, comprising a plunger pump body (1), characterized in that: An electric telescopic rod (2) is fixedly connected to the left inner wall of the plunger pump body (1), a plunger (3) is fixedly connected to the protruding end of the electric telescopic rod (2), the plunger (3) is slidably connected to the inside of the plunger pump body (1), the top of the plunger pump body (1) is connected to a one-way oil inlet pipe (4), the bottom of the plunger pump body (1) is fixedly connected to a one-way oil outlet pipe (5), the inside of the one-way oil outlet pipe (5) is fixedly connected to a filter screen (6), the bottom of the plunger pump body (1) is fixedly connected to a high-pressure gas cylinder (12), the left side of the high-pressure gas cylinder (12) is fixedly connected to a pressure relief valve (10), and a delivery pipe (11) is connected between the pressure relief valve (10) and the one-way oil outlet pipe (5).

2. The plunger pump structure of a potash fertilizer bucket wheel machine according to claim 1, characterized in that: A slide rod (14) is slidably connected to the left inner wall of the plunger pump body (1), and a rectangular plate (15) is fixedly connected to the right end of the slide rod (14).

3. The plunger pump structure of a potash fertilizer bucket wheel machine according to claim 2, characterized in that: A spring (16) is fixedly connected between the rectangular plate (15) and the plunger pump body (1), and the spring (16) is movably sleeved on the outer side of the slide rod (14).

4. The plunger pump structure of a potash bucket wheel excavator according to claim 3 is characterized in that: A support rod (17) is fixedly connected to the left side of the plunger pump body (1), and the left end of the support rod (17) is rotatably connected to a movable plate (18) via a hinge.

5. The plunger pump structure of a potash bucket wheel machine according to claim 4, characterized in that: A pull rope (19) is fixedly connected between the slide bar (14) and the movable plate (18), and the right side of the bottom of the movable plate (18) is in movable contact with the switch of the pressure relief valve (10).

6. The plunger pump structure of a potash fertilizer bucket wheel machine according to claim 5, characterized in that: The left side of the plunger (3) is fixedly connected with a connecting rod (13).

7. The plunger pump structure of a potash bucket wheel machine according to claim 6, characterized in that: The right side of the one-way oil outlet pipe (5) is connected to a discharge pipe (7), the outer side of the discharge pipe (7) is threadedly connected to a round pipe (8), and the right end of the round pipe (8) is connected to and fixed with a collection bag (9).

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